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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_KLAiBoticsHoldingsLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">KLA-iBotics Holdings Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_KLAiBoticsHoldingsLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">KLAi Botics Holdings Limited Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_KamuiColdChainEngineeringServiceLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Kamui Cold Chain Engineering &amp; Service Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_KamuiColdChainEngineeringServiceLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Kamui Cold Chain Engineering Service Limited Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_KamuiLogisticsAutomationSystemLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Kamui Logistics Automation System Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_KamuiLogisticsAutomationSystemLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Kamui Logistics Automation System Limited Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_JingxingHoldingsLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Jingxing Holdings Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_JingxingHoldingsLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Jingxing Holdings Limited Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_JingxingStorageEquipmentEngineeringHKLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Jingxing Storage Equipment Engineering (H.K.) Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_JingxingStorageEquipmentEngineeringHKLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Jingxing Storage Equipment Engineering HKLimited Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_KamuiConstructionEngineeringGroupLimitedformerlyKnownAsWindowKingLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Kamui Construction &amp; Engineering Group Limited (formerly known as Window King Limited) [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_KamuiConstructionEngineeringGroupLimitedformerlyKnownAsWindowKingLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Kamui Construction Engineering Group Limitedformerly Known As Window King Limited Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ReitarAssetManagementLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reitar Asset Management Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ReitarAssetManagementLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Reitar Asset Management Limited Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_CogenAdvisoryLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cogen Advisory Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_CogenAdvisoryLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cogen Advisory Limited Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_CogenInvestmentWSLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cogen Investment (WS) Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_CogenInvestmentWSLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cogen Investment WSLimited Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_CogenOperationLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cogen Operation Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_CogenOperationLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cogen Operation Limited Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AREHoldingsLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">A.R.E. Holdings Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AREHoldingsLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">AREHoldings Limited Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_PineForestHoldingsLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Pine Forest Holdings Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_PineForestHoldingsLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Pine Forest Holdings Limited Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Organization and Principal Activities [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementEquityComponentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Components [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementClassOfStockAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Stock [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfStockDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Stock [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonClassAMember_lbl" xlink:role="http://www.xbrl.org/2009/role/netLabel">Class A Ordinary Shares [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonClassAMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Class A</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonClassAMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class A Ordinary Shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonClassAMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Class A [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonClassBMember_lbl" xlink:role="http://www.xbrl.org/2009/role/netLabel">Class B Ordinary Shares [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonClassBMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Class B</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonClassBMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class B Ordinary Shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonClassBMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Class B [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Ordinary share, par value (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ordinary shares, par value (in Dollars per share and Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Par or Stated Value Per Share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Ordinary share, shares issued</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2009/role/netLabel">Ordinary shares, shares issued</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ordinary shares, shares issued (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Ordinary shares issued</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockVotingRights_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Vote</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockVotingRights_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Voting rights per ordinary share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockVotingRights_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Voting Rights</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityNoteStockSplit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Share split ratio</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityNoteStockSplit_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Share split description</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityNoteStockSplit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stockholders' Equity Note, Stock Split</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Ordinary share, shares authorized</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ordinary shares, shares authorized (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares Authorized</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_PineForestHoldingsLimitedOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Pine Forest Holdings Limited One [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_FTTRichHarvestGroupLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">FTT Rich Harvest Group Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_FTTRichHarvestNutriChoiceLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">FTT Rich Harvest NutriChoice Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AgroSmartChainLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">AgroSmart Chain Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_LMTHoldingsLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">LMT Holdings Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of equity interest</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Voting Equity Interest Acquired, Percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_VincitEngTechCoLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Vincit EngTech Co., Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_VincitEngTechCoLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Vincit Eng Tech Co Limited Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ReitarColdChainLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reitar Cold Chain Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ReitarColdChainLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Reitar Cold Chain Limited Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ReitarPropertiesLeasingLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reitar Properties Leasing Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ReitarPropertiesLeasingLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Reitar Properties Leasing Limited Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_YouYouCultureGroupLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">You You Culture Group Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Incorporated date</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsidiary of Limited Liability Company or Limited Partnership, Date</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SubsidiaryCompaniesIssuedShareCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issued share capital</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SubsidiaryCompaniesIssuedShareCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsidiary Companies Issued Share Capital</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SubsidiaryCompaniesIssuedShareCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of issued share capital.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipOwnershipInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ownership percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipOwnershipInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsidiary of Limited Liability Company or Limited Partnership, Ownership Interest</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_CommonSharesVotingRightPercenatage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common shares voting right, Percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_CommonSharesVotingRightPercenatage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Shares Voting Right, Percenatage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_CommonSharesVotingRightPercenatage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represents the common shares voting right, percentage.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_VincitBuildSolutionCoLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Vincit Build Solution Co., Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_VincitBuildSolutionCoLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Vincit Build Solution Co Limited Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Segment income (loss)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Total liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net assets (liabilities)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Estimated Fair Values of Assets and Liabilities [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Lived Tangible Asset [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segments [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesTaxPayable_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Tax payables</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesTaxPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Liabilities Tax Payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesTaxPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of tax payable expected to be recognized as such within one year or the normal operating cycle, if longer, assumed at the acquisition date.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Deferred tax liabilities &#8211; non current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Recognized Liability Assumed, Deferred Tax Liability</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Fair value of liabilities assumed</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Recognized Liability Assumed, Liability</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionProFormaInformationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Reitar Capital Partners Limited [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionsProFormaRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revenue</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionsProFormaRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Pro Forma Information, Pro Forma Revenue</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_JingxingHoldingLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Jingxing Holdings Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_JingxingHoldingLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Jingxing Holding Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedLiabilityAssumedAmountDueToADirectorCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amount due to a director</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedLiabilityAssumedAmountDueToADirectorCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Recognized Liability Assumed, Amount Due to a Director, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedLiabilityAssumedAmountDueToADirectorCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of amount due to a director assumed in business combination and recognized at acquisition date, classified as current.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedLiabilityAssumedOperatingLeaseLiabilitiesNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating lease liabilities &#8211; non current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedLiabilityAssumedOperatingLeaseLiabilitiesNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Recognized Liability Assumed, Operating Lease Liabilities, Noncurrent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedLiabilityAssumedOperatingLeaseLiabilitiesNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of operating lease liabilities assumed in business combination and recognized at acquisition date, classified as noncurrent.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationConsiderationTransferred1_lbl" xlink:role="http://www.xbrl.org/2009/role/netLabel">Consideration</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationConsiderationTransferred1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Liability consideration</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationConsiderationTransferred1_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Consideration amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationConsiderationTransferred1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Consideration Transferred, Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationCarryingAmountOfVBSsNetLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Add: Carrying amount of VBS&#8217;s net liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationCarryingAmountOfVBSsNetLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Carrying amount of VBS&#8217;s net liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationCarryingAmountOfVBSsNetLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of business combination, carrying amount of VBS&#8217;s net liabilities.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationGainOnDeconsolidation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gain on deconsolidation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationGainOnDeconsolidation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Gain on deconsolidation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationGainOnDeconsolidation_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of business combination, gain on deconsolidation.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Non-controlling interest</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Non-controlling interest</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of business combination, non-controlling interest.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeconsolidationRevaluationOfRetainedInvestmentGainOrLossAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net gain from deconsolidation of subsidiaries</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeconsolidationRevaluationOfRetainedInvestmentGainOrLossAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deconsolidation, Revaluation of Retained Investment, Gain (Loss), Amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_StatementGeographicalAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Geographical [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_SegmentGeographicalDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Geographical [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_HK_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Hong Kong [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_HK_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">HK [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_HK_lbl" xlink:role="http://www.xbrl.org/2003/role/label">HONG KONG</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AlvinDesignAndConstructionCompanyLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Alvin Design and Construction Company Limited (&#8220;Alvin Design&#8221;) [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AlvinDesignAndConstructionCompanyLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Alvin Design And Construction Company Limited Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statistical Measurement [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statistical Measurement [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MaximumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maximum [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MaximumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Maximum [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_WinnerLogisticsNetworkLimitedWLNMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Winner Logistics Network Limited (&#8220;WLN&#8221;) [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_WinnerLogisticsNetworkLimitedWLNMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Winner Logistics Network Limited WLNMember</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transaction [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transaction [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Name [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_EquityMethodInvesteeNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Name [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentOwnershipPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Method Investment, Ownership Percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentOwnershipPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Equity investment percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentOwnershipPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ownership interest</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentOwnershipPercentage_lbl" xlink:role="http://www.xbrl.org/2009/role/netLabel">Equity interest rate percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ReitarLogtechEngineeringLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reitar Logtech Engineering Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ReitarLogtechEngineeringLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Reitar Logtech Engineering Limited Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainsLossesOnExtinguishmentOfDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value loss on promissory note</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainsLossesOnExtinguishmentOfDebt_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Fair value loss on promissory note</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainsLossesOnExtinguishmentOfDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain (Loss) on Extinguishment of Debt, Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net income</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Pro Forma Information, Pro Forma Income (Loss), after Tax</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Information [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfOperatingSegments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating segments</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfOperatingSegments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number of Operating Segments</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MinimumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Minimum [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MinimumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Minimum [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Goodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Goodwill</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Goodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Ending Balance, Goodwill Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Goodwill_lbl" xlink:role="http://www.xbrl.org/2009/role/netLabel">Ending Balance, Goodwill Total (in Dollars)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Goodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Goodwill (Note 13)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Goodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Beginning Balance, Goodwill Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Goodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Goodwill</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_VincitBuildSolutionCoLtdMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Vincit Build Solution Co Ltd [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_KamuiDevelopmentGroupLtdMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Kamui Development Group Ltd [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_OtherIncomeAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other income</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_OtherIncomeAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other income amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_OtherIncomeAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of other income.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_GoodwillImpairmentLosses_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Goodwill Impairment Losses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_GoodwillImpairmentLosses_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Goodwill impairment losses.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_CostOfRevenues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cost of revenues</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_CostOfRevenues_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of cost of revenues.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SegmentAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SegmentAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">segment Assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SegmentAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of segment assets.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfReportableSegments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number of Reportable Segments</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_TricoPartnersMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Trico Partners [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ProvisionOfColdStorageFacilitiesTradingOfFoodAndAgriculturalProductsAssetManagementAndProfessionalConsultancyServicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Provision of cold storage facilities, trading of food and agricultural products, asset management and professional consultancy services [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedAssetAcquiredAccountsReceivableNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts receivable, net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedAssetAcquiredAccountsReceivableNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Recognized Asset Acquired, Accounts Receivable, Net, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedAssetAcquiredAccountsReceivableNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of accounts receivable, net acquired in business combination and recognized at acquisition date, classified as current.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfInvestmentsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Investment [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetAcquisitionConsiderationTransferred_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Consideration amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetAcquisitionConsiderationTransferred_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Acquisition, Consideration Transferred</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermInvestments_lbl" xlink:role="http://www.xbrl.org/2009/role/netLabel">Investment amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net carrying value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Long-term investment</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Investments</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByAssetClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Class [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Class [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Goodwill [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Goodwill [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Business Combination [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_GoodwillAnnualImpairmentTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Goodwill annual impairment term</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_GoodwillAnnualImpairmentTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Goodwill Annual Impairment Term</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_GoodwillAnnualImpairmentTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Goodwill annual impairment term.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_WeightedAverageCostOfCapitalRatePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average cost of capital rate, percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_WeightedAverageCostOfCapitalRatePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Cost Of Capital Rate Percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_WeightedAverageCostOfCapitalRatePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Weighted average cost of capital rate, percentage.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_DepositPaidForLifeInsurance_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deposit paid for life insurance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_DepositPaidForLifeInsurance_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of deposit paid for life insurance.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseNoncurrent_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Prepaid Expense, Noncurrent, Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prepaid Expense, Noncurrent, Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfBankBorrowingsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Bank Borrowings Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BankBorrowingsScheduleofBankBorrowingsDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Bank Borrowings - Schedule of Bank Borrowings (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_TheHongkongAndShanghaiBankingCorporationLimitednoteEMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">The Hongkong and Shanghai Banking Corporation Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_TheHongkongAndShanghaiBankingCorporationLimitednoteEMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">The Hongkong And Shanghai Banking Corporation Limitednote EMember</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Bank Borrowings [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermDebtDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Type</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermDebtDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Short-Term Debt, Description</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermDebtTerms_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maturity date</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermDebtTerms_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Short-Term Debt, Terms</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermDebtWeightedAverageInterestRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average interest rate</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermDebtWeightedAverageInterestRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Short-Term Debt, Weighted Average Interest Rate, at Point in Time</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermBorrowings_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Total bank borrowings</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermBorrowings_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Bank borrowings</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermBorrowings_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Short-Term Debt</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfOtherLoanAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Other Loan [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other loan, Weighted average interest rate</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Interest Rate, Stated Percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLoansPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Other loan, Balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLoansPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other loan</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLoansPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Loans Payable, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Accrued Expenses and Other Payables [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accrued expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accrued Liabilities, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AccruedDeferredOfferingCostsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accrued deferred offering costs</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AccruedDeferredOfferingCostsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accrued Deferred Offering Costs Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AccruedDeferredOfferingCostsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represent the amount of accrued deferred offering costs.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_PayableForAcquisitionOfASubsidiary_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Payable for acquisition of a subsidiary</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_PayableForAcquisitionOfASubsidiary_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payable For Acquisition Of ASubsidiary</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_PayableForAcquisitionOfASubsidiary_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Payable for acquisition of a subsidiary.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Current operating lease obligation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating lease liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Liability, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilityNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Non-current operating lease obligation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilityNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating lease liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilityNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Liability, Noncurrent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total operating lease obligation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Present value of minimum lease payments</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Liability</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average discount rate</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Weighted-average incremental borrowing rate</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Weighted Average Discount Rate, Percent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseRemainingLeaseTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average remaining lease term (years)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseRemainingLeaseTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Remaining Lease Term</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Maturity Analysis of Future Minimum Lease Payments [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_OtherIncomeScheduleofOtherIncomeDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Income - Schedule of Other Income (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCashAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Restricted Cash [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_RestrictedCashDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Restricted Cash (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ProductOrServiceAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Product and Service [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ProductsAndServicesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Product and Service [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConstructionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Construction [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConstructionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Construction [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_PrepaidExpensesAndOtherReceivablesNetLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prepaid Expenses and Other Receivables, Net [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_PrepaidExpensesAndOtherReceivablesNetLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prepaid Expenses and Other Receivables Net [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermDebtPercentageBearingFixedInterestRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Short term debt bearing interest rate</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermDebtPercentageBearingFixedInterestRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Short-Term Debt, Percentage Bearing Fixed Interest Rate</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsNotesAndLoansReceivableNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Allowances of expected credit losses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsNotesAndLoansReceivableNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts and Financing Receivable, after Allowance for Credit Loss, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermAccountsNotesAndLoansReceivableNetNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Aggregate of allowances of expected credit losses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermAccountsNotesAndLoansReceivableNetNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts and Financing Receivable, after Allowance for Credit Loss, Noncurrent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermInvestmentsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Investment [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_LongTermInvestmentDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Investment (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SmartmoreLogTechInternationalGroupLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investment in Smartmore [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SmartmoreLogTechInternationalGroupLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Smartmore LogTech International Group Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SmartmoreLogTechInternationalGroupLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Smartmore Log Tech International Group Limited Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BlazeMasterInternationalLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investment in Blaze Master [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BlazeMasterInternationalLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Blaze Master International Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BlazeMasterInternationalLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Blaze Master International Limited Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_LongTermInvestmentScheduleofLongTermInvestmentsNetDetailsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Long Term Investments, Net [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity method investments:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Method Investments and Joint Ventures [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfPropertyAndEquipmentNetAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Property and Equipment Net [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant and Equipment [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Lived Tangible Asset [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Less: accumulated depreciation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Property and equipment, net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Property and equipment, net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant and Equipment, Net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfCarryingAmountOfGoodwillAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Carrying Amount Of Goodwill Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfGoodwillTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Goodwill [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementBusinessSegmentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segments [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2027</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid, Year One</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total minimum lease payments</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Less: interest component</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, Undiscounted Excess Amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiabilityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract with Customer, Liability [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Balance at beginning of the year</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Balance at end of year</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contract liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract with Customer, Liability, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Disaggregated revenue</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total revenue</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue from Contract with Customer, Including Assessed Tax</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueRemainingPerformanceObligationPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of disaggregated revenue</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueRemainingPerformanceObligationPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue, Remaining Performance Obligation, Percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfTransactionPriceAllocatedToRemainingPerformanceObligationsExpectedToBeRecognizedAsRevenueAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Transaction Price Allocated To Remaining Performance Obligations Expected To Be Recognized As Revenue Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueRemainingPerformanceObligation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Remaining performance obligations</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueRemainingPerformanceObligation_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Remaining non-cancelable performance obligations</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueRemainingPerformanceObligation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue, Remaining Performance Obligation, Amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_PrepaidExpensesandOtherReceivablesNetScheduleofPrepaidExpensesandOtherReceivablesNetDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prepaid Expenses and Other Receivables, Net - Schedule of Prepaid Expenses and Other Receivables, Net (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedPeriodEndLabel">Ending Balance, Accumulated impairment losses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedPeriodStartLabel">Beginning Balance, Accumulated impairment losses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Goodwill, Impaired, Accumulated Impairment Loss</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillAcquiredDuringPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Goodwill acquired during year</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillAcquiredDuringPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Goodwill, Acquired During Period</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillImpairmentLossNetOfTax_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">Impairment losses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillImpairmentLossNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Goodwill, Impairment Loss, Net of Tax</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AlvinDesignAndConstructionCompanyLimitedAlvinDesignMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Alvin Design and Construction Company Limited (&#8220;Alvin Design&#8221;) [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AlvinDesignAndConstructionCompanyLimitedAlvinDesignMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Alvin Design And Construction Company Limited Alvin Design Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Goodwill [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Carrying Amount of Goodwill [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Bank Borrowings [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BankBorrowingsDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Bank Borrowings (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermDebtTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Short-Term Debt, Type [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermDebtTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Short-Term Debt, Type [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BankBorrowingsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Bank Borrowings [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BankBorrowingsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Bank Borrowings Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Bank Borrowings [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TimeDeposits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Time deposit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TimeDeposits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Time Deposits</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisaggregationOfRevenueAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disaggregated Revenue [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_DisaggregatedRevenueDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disaggregated Revenue (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Disaggregated Revenue [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AcquisitionOfReitarCapitalPartnersLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Acquisition of Reitar Capital Partners Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AcquisitionOfReitarCapitalPartnersLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Acquisition Of Reitar Capital Partners Limited Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractWithCustomerLiabilityAddition_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Addition</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractWithCustomerLiabilityAddition_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract With Customer Liability Addition</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractWithCustomerLiabilityAddition_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Contract with customer liability addition</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiabilityRevenueRecognized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Recognized to revenue during the year</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiabilityRevenueRecognized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract with Customer, Liability, Revenue Recognized</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfDisaggregatedRevenueByMajorCategoriesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Disaggregated Revenue By Major Categories Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisaggregationOfRevenueTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disaggregation of Revenue [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related and Nonrelated Parties [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related and Nonrelated Parties [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_HappyCPCompanyLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Happy CP Company Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_HappyCPCompanyLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Happy CPCompany Limited Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermDebtLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Other Loan [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other loan, Type</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Description</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentMaturityDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other loan, Maturity date</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentMaturityDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Maturity Date</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentCurrency_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other loan, Currency</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentCurrency_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Currency</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableAndOtherAccruedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableAndOtherAccruedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accrued expenses and other payables</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableAndOtherAccruedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Payable and Other Accrued Liabilities, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfRightOfUseAssetsAndLeaseLiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Right Of Use Assets And Lease Liabilities Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseCostAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating lease:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseCostAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lease, Cost [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_OperatingLeaseRightOfUseAssetGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cost</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_OperatingLeaseRightOfUseAssetGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease Right Of Use Asset Gross</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_OperatingLeaseRightOfUseAssetGross_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of operating lease, right-of-use asset.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_OperatingLeaseRightOfUseAssetAccumulatedAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Less: accumulated amortization</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_OperatingLeaseRightOfUseAssetAccumulatedAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease Right Of Use Asset Accumulated Amortization</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_OperatingLeaseRightOfUseAssetAccumulatedAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of accumulated amortization of right-of-use asset from operating lease.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Operating lease right-of-use assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Right-of-use assets, net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Right-of-Use Asset</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_CogenInvestmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cogen Investment [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_CogenInvestmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cogen Investment Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Prepaid Expense, Current, Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prepaid Expense, Current, Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ZhejiangJingXingLogisticsEquipmentCoLtdZJLEMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Zhejiang JingXing Logistics Equipment Co., Ltd. (&#8220;ZJLE&#8221;) [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_InfinityHongKongInvestmentLimitedIHKIMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Infinity Hong Kong Investment Limited (&#8220;IHKI&#8221;) [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_PineconeSupplyChainLimitedPSCLMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Pinecone Supply Chain Limited (&#8220;PSCL&#8221;) [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_WLInternationalHoldingsHKLimitedWLIHMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">WL International Holdings (HK) Limited (&#8220;WLIH&#8221;) [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_DesignSupplyAndInstallationOfStorageRackingSystemSegmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Design, supply and installation of storage racking system segment [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AcquisitionOfJingxingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Acquisition of Jingxing [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_TheHongkongAndShanghaiBankingCorporationLimitedOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">The Hongkong and Shanghai Banking Corporation Limited One [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_TheHongkongAndShanghaiBankingCorporationLimitedTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">The Hongkong and Shanghai Banking Corporation Limited Two [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_TheHongkongAndShanghaiBankingCorporationLimitedThreeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">The Hongkong and Shanghai Banking Corporation Limited Three [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_HangSengBankLimitedOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Hang Seng Bank Limited One [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_HangSengBankLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Hang Seng Bank Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractWithCustomerLiabilityAcquisitionOfSubsidiaries_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Acquisition of subsidiaries</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractWithCustomerLiabilityAcquisitionOfSubsidiaries_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract with Customer Liability Acquisition of Subsidiaries</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractWithCustomerLiabilityAcquisitionOfSubsidiaries_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of contract with customer liability acquisition of subsidiaries.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractWithCustomerLiabilityDeconsolidationOfSubsidiaries_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deconsolidation of subsidiaries</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractWithCustomerLiabilityDeconsolidationOfSubsidiaries_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract with Customer Liability Deconsolidation of Subsidiaries</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractWithCustomerLiabilityDeconsolidationOfSubsidiaries_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of contract with customer liabilities deconsolidation of subsidiaries.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Deposits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deposit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Deposits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deposits, Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AdvertisingFeeIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Advertising fee income</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AdvertisingFeeIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Advertising Fee Income</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AdvertisingFeeIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of advertising fee income.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ManagementFeeIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Management fee income</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ManagementFeeIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Management Fee Income</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ManagementFeeIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of management fee income.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BankDeposit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Bank Deposit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BankDeposit_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of bank deposit.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllowanceForCreditLossAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Allowance for Expected Credit Losses [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerAssetNetAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract with Customer, Asset, after Allowance for Credit Loss [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNetAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Assets [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IntangibleAssetsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">INTANGIBLE ASSETS</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IntangibleAssetsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Asset [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Intangible Assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Asset, Finite-Lived [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">NET INCOME (LOSS) AND TOTAL COMPREHENSIVE INCOME (LOSS)</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">NET INCOME (LOSS) AND TOTAL COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO THE COMPANY&#8217;S ORDINARY SHAREHOLDERS AND TOTAL COMPREHENSIVE INCOME</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Basic (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Number of Shares Outstanding, Basic</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Retained Earnings [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ParentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total Reitar Logtech Holdings Limited shareholders&#8217; equity</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProvisionForDoubtfulAccounts_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Provision for expected credit losses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProvisionForDoubtfulAccounts_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Provision for expected credit losses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProvisionForDoubtfulAccounts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Receivable, Credit Loss Expense (Reversal)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Changes in operating assets and liabilities</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_CommonStockDesignateShares_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represent the number of designated ordinary shares.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Events ]Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SubsequentEventsDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Events (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_StatementScenarioAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Scenario [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ScenarioForecastMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Forecast [Member]</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentShellCompanyReport_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Shell Company Report</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentShellCompanyReport_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Shell Company Report</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFileNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity File Number</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFileNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity File Number</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityRegistrantName_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Registrant Name</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityRegistrantName_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Registrant Name</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityIncorporationStateCountryCode_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Incorporation, State or Country Code</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityIncorporationStateCountryCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Incorporation, State or Country Code</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Address Line One</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Address Line One</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine2_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Address Line Two</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine2_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Address Line Two</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine3_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Address Line Three</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine3_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Address Line Three</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressCityOrTown_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, City or Town</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressCityOrTown_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, City or Town</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressCountry_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Country</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressCountry_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Country</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCurrentReportingStatus_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Current Reporting Status</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCurrentReportingStatus_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Current Reporting Status</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityInteractiveDataCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Interactive Data Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityInteractiveDataCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Interactive Data Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFilerCategory_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Filer Category</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFilerCategory_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Filer Category</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Emerging Growth Company</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Emerging Growth Company</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityExTransitionPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Ex Transition Period</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityExTransitionPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Ex Transition Period</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_IcfrAuditorAttestationFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">ICFR Auditor Attestation Flag</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_IcfrAuditorAttestationFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/label">ICFR Auditor Attestation Flag</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFinStmtErrorCorrectionFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Financial Statement Error Correction [Flag]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFinStmtErrorCorrectionFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Financial Statement Error Correction [Flag]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentAccountingStandard_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Accounting Standard</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentAccountingStandard_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Accounting Standard</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityShellCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Shell Company</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityShellCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Shell Company</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_RelatedPartyBalancesandTransactionsDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Balances and Transactions (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_PromissoryNotesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Promissory Notes [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfPromissoryNotesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Promissory Notes</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfPromissoryNotesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Tabular disclosure of schedule of promissory notes.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_CROMStructuredOpportunitiesFundILPMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">CROM Structured Opportunities Fund I, LP [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_FirstFireGlobalOpportunitiesFundLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">First Fire Global Opportunities Fund, LLC [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfFinancialPositionAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Financial Position [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Related Parties</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyMember_lbl" xlink:role="http://www.xbrl.org/2009/role/netLabel">Related Party [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Retained earnings (accumulated losses)</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Notes Payable, Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Type</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInContractWithCustomerAsset_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Contract assets</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net cash used in operating activities</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfOtherDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Repayments of Other Debt</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfStockIssuanceCosts_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Deferred offering costs</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfStockIssuanceCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments of Stock Issuance Costs</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceInitialPublicOffering_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from IPO, net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceInitialPublicOffering_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Issuance Initial Public Offering</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AdvanceToRelatedParties_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Advance to related parties</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AdvanceToRelatedParties_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Advance To Related Parties</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AdvanceToRelatedParties_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Advance to related parties.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net cash provided by financing activities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Financing Activity, Including Discontinued Operation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_PurchasesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Purchases [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_PurchasesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Purchases Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts Payable [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Payable [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Risks and Uncertainties [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CompensationAndBenefitsTrust_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Compensation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CompensationAndBenefitsTrust_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Compensation and Benefits Trust</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Cash balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash and cash equivalents</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfStockLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shareholders&#8217; Equity [Line Item]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CustomerConcentrationRiskMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Customer Concentration Risk [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CustomerConcentrationRiskMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Customer Concentration Risk [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractAssetsConcentrationsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contract Assets Concentrations [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractAssetsConcentrationsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract Assets Concentrations Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SubcontractorsConcentrationsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subcontractors Concentrations [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SubcontractorsConcentrationsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subcontractors Concentrations Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MajorCustomersAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Customer [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_NameOfMajorCustomerDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Customer [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_CustomerOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Customer One [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_CustomerOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Customer One Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_CustomerTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Customer Two [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_CustomerTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Customer Two Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Supplier [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Supplier [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SubcontractorsOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subcontractors One [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SubcontractorsOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subcontractors One Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SubcontractorsTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subcontractors Two [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SubcontractorsTwoMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subcontractors Two Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskByBenchmarkAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Concentration Risk Benchmark [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskBenchmarkDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Concentration Risk Benchmark [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashFDICInsuredAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financial institutions insured (in Dollars)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashFDICInsuredAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash, FDIC Insured Amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskPercentage1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Concentration risk percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskPercentage1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Concentration Risk, Percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityNoteAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shareholders&#8217; Equity [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ShareholdersEquityDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shareholders&#8217; Equity (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_NumberofConvertibleOrdinaryShares_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Convertible shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_NumberofConvertibleOrdinaryShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Numberof Convertible Ordinary Shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_NumberofConvertibleOrdinaryShares_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of convertible ordinary shares.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Dividends_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dividends declared (in Dollars)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Dividends_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_ContactPersonnelName_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contact Personnel Name</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_ContactPersonnelName_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contact Personnel Name</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CityAreaCode_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">City Area Code</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CityAreaCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label">City Area Code</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_LocalPhoneNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Local Phone Number</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_LocalPhoneNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Local Phone Number</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_Security12bTitle_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Title of 12(b) Security</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_Security12bTitle_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Title of 12(b) Security</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">SEGMENT INFORMATION</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting Disclosure [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractsReceivableNetTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">CONTRACTS RECEIVABLE, NET</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractsReceivableNetTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contracts Receivable Net Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractsReceivableNetTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The entire disclosure of contracts receivable, net.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerAssetNetCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract Assets, Net [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractAssetsNetTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">CONTRACT ASSETS, NET</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractAssetsNetTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract Assets Net Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractAssetsNetTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The entire disclosure for contract assets, net.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReceivablesNetCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Retention Receivables, Net [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_RetentionReceivablesNetTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">RETENTION RECEIVABLES, NET</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_RetentionReceivablesNetTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Retention Receivables Net Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_RetentionReceivablesNetTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The entire disclosure for retention receivables net.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prepaid Expenses and Other Receivables, Net [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">BANK BORROWINGS</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Disclosure [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLongtermLoansPayableCurrentAndNoncurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Loan [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermDebtTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">OTHER LOAN</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermDebtTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Short-Term Debt [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accrued Expenses and Other Payables [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">ACCRUED EXPENSES AND OTHER PAYABLES</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeasesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Right-of-Use Assets and Lease Liabilities [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeForeignDeposits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Exchange difference on foreign currency translation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeForeignDeposits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Income, Foreign Deposits</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllowanceForDoubtfulAccountsReceivableRecoveries_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Bad debt recovered</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllowanceForDoubtfulAccountsReceivableRecoveries_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Receivable, Allowance for Credit Loss, Recovery</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loan interest income</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Income, Interest</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Others</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Income</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CurrentIncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total income tax expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CurrentIncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Current Income Tax Expense (Benefit)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxReconciliationTaxCreditsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Statutory Rates to the Effective Tax Rate [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ScenarioUnspecifiedDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Scenario [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Payable, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ValuationAllowanceByDeferredTaxAssetAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Valuation Allowance by Deferred Tax Asset [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredTaxAssetDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Tax Asset [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_DeferredTaxAssetMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred Tax Asset [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_DeferredTaxAssetMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Tax Asset Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_WinnerLogisticsSolutionLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Winner Logistics Solution Limited (WSL) [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_WinnerLogisticsSolutionLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Winner Logistics Solution Limited Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfRelatedPartyBalancesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Related Party Balances Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_RelatedPartyBalancesandTransactionsScheduleofRelatedPartyBalancesDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Balances and Transactions - Schedule of Related Party Balances (Details) [Table]</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_RevenueFromSmartmoreMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue From Smartmore Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_RevenueFromNEXXMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revenue from NEXX [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_RevenueFromNEXXMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue From NEXXMember</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AcquisitionOfMachineryFromNEXXMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Acquisition of machinery from NEXX [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AcquisitionOfMachineryFromNEXXMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Acquisition Of Machinery From NEXXMember</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Related Party Transaction [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Relationships with Related Parties [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionAmountsOfTransaction_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Related party balances</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionAmountsOfTransaction_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transaction, Amounts of Transaction</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prepaid expenses and other receivables, net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prepaid Expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherReceivablesNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amounts due from related companies</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherReceivablesNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Receivables, Net, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total current assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsNoncurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">NON-CURRENT ASSETS</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsNoncurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets, Noncurrent [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepositsAssetsNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Rental deposits, net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepositsAssetsNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deposits Assets, Noncurrent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amounts due to related parties</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Due to related parties</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Liabilities, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total current liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesNoncurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">NON-CURRENT LIABILITIES</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesNoncurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities, Noncurrent [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total non-current liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities, Noncurrent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total liabilities and shareholders&#8217; equity</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities and Equity</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NonrelatedPartyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">External</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NonrelatedPartyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Nonrelated Party [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenuesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">REVENUE</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenuesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenues [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CostOfRevenueAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">COST OF REVENUE</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CostOfRevenueAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cost of Revenue [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CostOfRevenue_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Total cost of revenue</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CostOfRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cost of Revenue</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfCashFlowsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Cash Flows [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash flows from operating activities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Taxes [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_TaxesDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Taxes (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLossCarryforwards_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net operating loss carryforwards</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLossCarryforwards_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Loss Carryforwards</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred tax asset valuation allowance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Valuation allowance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Change in valuation allowance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Balances and Transactions [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_InitialRecognitionOfOperatingLeaseLiabilitiesRelatedToRightofuseassets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Initial recognition of operating lease liabilities related to right-of-use-assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_InitialRecognitionOfOperatingLeaseLiabilitiesRelatedToRightofuseassets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Initial Recognition Of Operating Lease Liabilities Related To Rightofuseassets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_InitialRecognitionOfOperatingLeaseLiabilitiesRelatedToRightofuseassets_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount initial recognition of operating lease liabilities related to right-of-use-assets.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Restricted cash</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Restricted Cash and Cash Equivalent, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_RepaymentFromRelatedParties_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Repayment from related parties</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_RepaymentFromRelatedParties_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of repayment from related parties</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AmortizationOfOperatingLease_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Amortization of operating lease</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AmortizationOfOperatingLease_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amortization of operating lease</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AmortizationOfOperatingLease_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of amortization of operating lease.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_EmbeddedDerivativeOfPromissoryNotes_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Embedded derivative of promissory notes</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_EmbeddedDerivativeOfPromissoryNotes_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of embedded derivative of promissory notes.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpenseDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest expenses on promissory note</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpenseDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Expense, Debt</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_CROMStructuredOpportunitiesFundILPOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">CROM Structured Opportunities Fund I, LP One [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_FirstFireGlobalOpportunitiesFundLLCOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">First Fire Global Opportunities Fund, LLC [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_FirstFireGlobalOpportunitiesFundLLCOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">First Fire Global Opportunities Fund, LLC One [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AmountOfDeferredTaxAssetsValuationAllowanceDeconsolidationOfSubsidiaries_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deconsolidation of subsidiaries</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AmountOfDeferredTaxAssetsValuationAllowanceDeconsolidationOfSubsidiaries_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amount of Deferred Tax Assets Valuation Allowance Deconsolidation of Subsidiaries</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AmountOfDeferredTaxAssetsValuationAllowanceDeconsolidationOfSubsidiaries_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of deferred tax assets valuation allowance deconsolidation of subsidiaries.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_TotalPromissoryNotesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Total Promissory Notes [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermNotesPayable_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Promissory note, Noncurrent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermNotesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Notes Payable, Noncurrent, Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Promissory note, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Notes Payable, Current, Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_TechSeasonLimitedTSLMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tech Season Limited ("TSL&#8221;) [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_TechSeasonLimitedTSLMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Tech Season Limited TSLMember</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInInventories_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Inventories</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInInventories_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Inventories, Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInDeferredIncomeTaxes_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Deferred tax assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInDeferredIncomeTaxes_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Deferred Income Taxes</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_IncreaseDecreaseInTaxRecoverable_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Tax recoverable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_IncreaseDecreaseInTaxRecoverable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Tax recoverable</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInDeferredLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred tax liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInDeferredLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Deferred Liabilities, Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireBusinessesAndInterestInAffiliates_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">Deconsolidation of subsidiaries</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireBusinessesAndInterestInAffiliates_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments to Acquire Businesses and Interest in Affiliates, Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromNotesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from promissory note</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reconciliation of cash, cash equivalents and restricted cash:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromBankDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from bank borrowings</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Cash and cash equivalents and restricted cash at the end of the year</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total cash, cash equivalents and restricted cash shown in the consolidated statement of cash flows</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Supplemental Cash Flow Information [Abstract]</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Intangible Assets [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Asset, Finite-Lived [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Balance at beginning of the year</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Balance at end of the year</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Asset, Finite-Lived, after Accumulated Amortization, Beginning Balance</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">INCOME TAX EXPENSES</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfAllowanceForExpectedCreditLossesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Allowance for Expected Credit Losses</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfAllowanceForExpectedCreditLossesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The tabular disclosure of allowance for expected credit losses.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherNonoperatingIncomeAndExpenseTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">OTHER INCOME</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingPoliciesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Summary of Significant Accounting Policies [Abstract]</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Property and equipment, net</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepositContractsPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Rental deposits, net</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Goodwill</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_NewAccountingStandardsNotYetAdoptedPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disclosure of accounting policy for new accounting standards not yet adopted.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfSubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipDescriptionTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Subsidiary Companies</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfDepreciatesPropertyAndEquipmentTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Depreciation of Property and Equipment</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfDepreciatesPropertyAndEquipmentTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The tabular disclosure of depreciation of property plant and equipment.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Key Financial Performance Measures</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Estimated Fair Values of Assets and Liabilities</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskManagementStrategyAndGovernanceAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cybersecurity Risk Management, Strategy, and Governance [Abstract]</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RisksAndUncertaintiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Risks and Uncertainties [Abstract]</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfContractAssetsNetTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Contract Assets, Net</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfRetentionReceivableAllowanceForExpectedCreditLossesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Tabular disclosure of retention receivable allowance for expected credit losses.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillImpairedAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Goodwill [Abstract]</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfGoodwillTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Goodwill [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDebtTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Bank Borrowings</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_PrepaidExpensesAndOtherReceivablesNetPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prepaid expenses and other receivables, net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_PrepaidExpensesAndOtherReceivablesNetPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prepaid Expenses And Other Receivables Net Policy Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_PrepaidExpensesAndOtherReceivablesNetPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disclosure of accounting policy for prepaid expenses and other receivables, net.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfAllowanceForExpectedCreditLosseTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Allowance for Expected Credit Losses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfAllowanceForExpectedCreditLosseTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Allowance for Expected Credit Losse [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfAllowanceForExpectedCreditLosseTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Tabular disclosure of allowance for expected credit losses.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfAmountDueToRelatedPartiesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Amount Due from (to) Related Parties</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfAmountDueToRelatedPartiesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Amount Due To Related Parties Table Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfAmountDueToRelatedPartiesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Tabular disclosure of amount due to related parties.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfRelatedPartyBalancesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Related Party Balances</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfRelatedPartyBalancesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Related Party Balances Table Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfRelatedPartyBalancesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Tabular disclosure of related party balances.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Relationships with Related Parties</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Related Party Transactions [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfSubsidiaryCompaniesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Subsidiary Companies Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfSubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsidiary of LLC or LP [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ReitarLogtechEngineeringLimitedformerlyKnownAsKamuiGroupHoldingsLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reitar Logtech Engineering Limited (formerly known as Kamui Group Holdings Limited) [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ReitarLogtechEngineeringLimitedformerlyKnownAsKamuiGroupHoldingsLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Reitar Logtech Engineering Limitedformerly Known As Kamui Group Holdings Limited Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ReithubConsultingLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reithub Consulting Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ReithubConsultingLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Reithub Consulting Limited Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_WinnerLogisticsNetworkLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Winner Logistics Network Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_WinnerLogisticsNetworkLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Winner Logistics Network Limited Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_US_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">US [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_US_lbl" xlink:role="http://www.xbrl.org/2003/role/label">UNITED STATES</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ForeignCurrencyExchangeRateTranslation1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Translation rate</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_PercentageOfTotalContractValue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of total contract value.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProvisionForOtherCreditLosses_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Provision for expected credit losses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProvisionForOtherCreditLosses_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Provision for Other Credit Losses</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SubsidiaryCompaniesBackground_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Background</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SubsidiaryCompaniesBackground_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsidiary Companies Background</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SubsidiaryCompaniesBackground_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Description of subsidiary companies background.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SubsidiaryCompaniesOwnership_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ownership</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SubsidiaryCompaniesOwnership_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsidiary Companies Ownership</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SubsidiaryCompaniesOwnership_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The description of ownership.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SubsidiaryCompaniesAcquiredDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Acquired date</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SubsidiaryCompaniesAcquiredDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsidiary Companies Acquired Date</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SubsidiaryCompaniesAcquiredDate_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The date of acquired.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Impairment of long-lived assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Impairment of Long-Lived Assets to be Disposed of</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GovernmentAssistanceOperatingIncomeStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Government Assistance, Operating Income, Increase (Decrease), Statement of Income or Comprehensive Income [Extensible Enumeration]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GovernmentAssistanceOperatingIncomeStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Government Assistance, Operating Income, Increase (Decrease), Statement of Income or Comprehensive Income [Extensible Enumeration]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GovernmentAssistanceOperatingIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Government subsidies</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GovernmentAssistanceOperatingIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Government Assistance, Operating Income, Increase (Decrease)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SummaryofSignificantAccountingPoliciesDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Summary of Significant Accounting Policies (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AuditorLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Auditor [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AuditorName_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Auditor Name</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AuditorFirmId_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Auditor Firm ID</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AuditorLocation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Auditor Location</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SmartPointerLegtechLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Smart Pointer Legtech Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ZhenOriginFoodtechGroupLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Zhen Origin Foodtech Group Limited [Member]</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ZiyuFoodLabsLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Ziyu Food Labs Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfDepreciationOfPropertyAndEquipmentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Depreciation Of Property And Equipment Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SummaryofSignificantAccountingPoliciesScheduleofDepreciationofPropertyandEquipmentDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Summary of Significant Accounting Policies - Schedule of Depreciation of Property and Equipment (Details) [Table]</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentUsefulLifeDescriptionOfTermExtensibleEnumeration_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Useful lives of property and equipment, description</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentUsefulLifeDescriptionOfTermExtensibleEnumeration_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant, and Equipment, Useful Life, Term, Description [Extensible Enumeration]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfKeyFinancialPerformanceMeasuresAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Key Financial Performance Measures Abstract</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Total expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingExpenses_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel">Total operating expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AssetsAcquiredAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Assets acquired:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AssetsAcquiredAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets Acquired Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash and cash equivalents</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Cash and cash equivalents</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Contract assets, net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Recognized Asset Acquired, Receivable, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOtherReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Deposit paid and other receivables</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOtherReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Assets Other Receivable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOtherReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of other receivable expected to be realized or consumed before one year or the normal operating cycle, if longer, acquired at the acquisition date.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Property and equipment, net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseholdImprovementsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Leasehold improvement [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseholdImprovementsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Leasehold Improvements [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MachineryAndEquipmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Machinery [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MachineryAndEquipmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Machinery and Equipment [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ConstructionAndEngineeringServicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Construction and engineering services [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ConstructionAndEngineeringServicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Construction And Engineering Services Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AssetManagementAndProfessionalConsultancyServicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Asset management and professional consultancy services [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AssetManagementAndProfessionalConsultancyServicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Management And Professional Consultancy Services Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CorporateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Corporate [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CorporateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Corporate Segment [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_TotalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_TotalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Total Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ExternalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">External [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ExternalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">External Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeOperating_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Bank interest income</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeOperating_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Income, Operating</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Expense, Operating and Nonoperating</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherNonoperatingExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherNonoperatingExpense_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Other expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherNonoperatingExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Nonoperating Expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossAttributableToParent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Profit/(loss) before income tax expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossAttributableToParent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income (Loss) Attributable to Parent, before Tax</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFinancialAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value of assets acquired</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFinancialAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Recognized Asset Acquired, Financial Asset</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Liabilities assumed:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Recognized Liability Assumed, Liability, Noncurrent [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Accounts payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Recognized Liability Assumed, Accounts Payable, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedExpensesAndOtherPayables_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Accruals and other payables</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedExpensesAndOtherPayables_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Liabilities Accrued Expenses And Other Payables</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedExpensesAndOtherPayables_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of accrued expenses and other payable due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationLiabilitiesArisingFromContingenciesAmountRecognizedOtherThanAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value of net liabilities as of the acquisition date</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationLiabilitiesArisingFromContingenciesAmountRecognizedOtherThanAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Contingency Recognized at Acquisition Date, Liability Assumed, Other than at Fair Value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationConsiderationTransferred_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total consideration (per above)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationConsiderationTransferred_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination Consideration Transferred</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationConsiderationTransferred_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationContingentConsiderationAssetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total consideration</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationContingentConsiderationAssetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Contingent Consideration, Asset, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationAssetsAndLiabilitiesArisingFromContingenciesAmountRecognizedOtherThanAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value of net assets as of the acquisition date</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationAssetsAndLiabilitiesArisingFromContingenciesAmountRecognizedOtherThanAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Contingency Recognized at Acquisition Date, Liability to Asset, Excess (Less), Other than at Fair Value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedAssetAcquiredAmountDueFromAShareholderCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amount due from a shareholder</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedAssetAcquiredAmountDueFromAShareholderCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Recognized Asset Acquired, Amount Due from a Shareholder, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedAssetAcquiredAmountDueFromAShareholderCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of due from a shareholder acquired in business combination and recognized at acquisition date, classified as current.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Right-of-use assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Recognized Asset Acquired, Other Asset, Noncurrent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedAssetAcquiredCustomerRelationship_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Customer relationship</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedAssetAcquiredCustomerRelationship_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Recognized Asset Acquired, Customer Relationship</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedAssetAcquiredCustomerRelationship_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of customer relationship acquired in business combination and recognized at acquisition date.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedLiabilityAssumedDividendPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dividend payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedLiabilityAssumedDividendPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Recognized Liability Assumed, Dividend Payable, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedLiabilityAssumedDividendPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of dividend payable assumed in business combination and recognized at acquisition date, classified as current.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedLiabilityAssumedContractLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contract liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedLiabilityAssumedContractLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Recognized Liability Assumed, Contract Liabilities, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedLiabilityAssumedContractLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of contract liabilities assumed in business combination and recognized at acquisition date, classified as current.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedLiabilityAssumedOperatingLeaseLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating lease liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedLiabilityAssumedOperatingLeaseLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Recognized Liability Assumed, Operating Lease Liabilities, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationRecognizedLiabilityAssumedOperatingLeaseLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of operating lease liabilities assumed in business combination and recognized at acquisition date, classified as current.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OfficeEquipmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Office equipment [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OfficeEquipmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Office Equipment [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_OperatingLeaseRightOfUseAssetsGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating lease right of use assets gross</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_OperatingLeaseRightOfUseAssetsGross_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Operating lease right of use assets gross</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractsReceivableClaimsAndUncertainAmounts_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Balance at end of year</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractsReceivableClaimsAndUncertainAmounts_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contracts receivable, net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractsReceivableClaimsAndUncertainAmounts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contracts Receivable, Claims and Uncertain Amounts</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AllowanceForContractReceivableExpectedCreditLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Beginning balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AllowanceForContractReceivableExpectedCreditLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Ending balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AllowanceForContractReceivableExpectedCreditLoss_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Allowance for expected credit losses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AllowanceForContractReceivableExpectedCreditLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Allowance For Contract Receivable Expected Credit Loss</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AllowanceForContractReceivableExpectedCreditLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represents the amount of allowance for contract receivable expected credit loss.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AllowanceForDoubtfulAccountsAdditions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Addition</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AllowanceForDoubtfulAccountsAdditions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Allowance For Doubtful Accounts Additions</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AllowanceForDoubtfulAccountsAdditions_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of allowance for doubtful accounts of addition.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractWithCustomerAssetAccumulatedAllowancesForCreditLossCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Beginning balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractWithCustomerAssetAccumulatedAllowancesForCreditLossCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Ending balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractWithCustomerAssetAccumulatedAllowancesForCreditLossCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract With Customer Asset Accumulated Allowances For Credit Loss Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractWithCustomerAssetAccumulatedAllowancesForCreditLossCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Allowance for expected credit losses.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_RetentionReceivablesNetAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Retention Receivables, Net [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllowanceForDoubtfulAccountsReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Beginning balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllowanceForDoubtfulAccountsReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Beginning balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllowanceForDoubtfulAccountsReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Receivable, Allowance for Credit Loss</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfPrepaidExpensesAndOtherReceivablesNetAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Prepaid Expenses And Other Receivables Net Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_RentalIncomeOfColdStorageFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Rental income of cold storage facility [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SalesOfFoodAndAgriculturalProductsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sales of food and agricultural products [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractReceivablesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contracts Receivable, Net [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractsReceivableClaimsAndUncertainAmountsGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contracts receivable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractsReceivableClaimsAndUncertainAmountsGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contracts Receivable Claims And Uncertain Amounts Gross</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractsReceivableClaimsAndUncertainAmountsGross_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Contracts receivable gross.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerAssetNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Beginning balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerAssetNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Ending balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerAssetNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contract assets, net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerAssetNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract with Customer, Asset, after Allowance for Credit Loss, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractWithCustomerAssetAddition_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Addition</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractWithCustomerAssetAddition_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract With Customer Asset Addition</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractWithCustomerAssetAddition_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represents the amount of addition.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractWithCustomerAssetChangesDueToBillings_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Changes due to billings</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractWithCustomerAssetChangesDueToBillings_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract With Customer Asset Changes Due To Billings</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractWithCustomerAssetChangesDueToBillings_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Changes due to billings.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerAssetGrossCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerAssetGrossCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract with Customer, Asset, before Allowance for Credit Loss, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">(Reversal) addition</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AcquisitionOfAlvinDesignMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Acquisition of Alvin Design [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AcquisitionOfAlvinDesignMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Acquisition Of Alvin Design Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AcquisitionOfWLNMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Acquisition of WLN [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AcquisitionOfWLNMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Acquisition Of WLNMember</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillGross_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Beginning Balance, Goodwill</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillGross_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Ending Balance, Goodwill</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Goodwill, Gross</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ReceivedDuringTheYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Received during the year</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ReceivedDuringTheYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Received During the Year</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ReceivedDuringTheYear_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Received during the year.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_MotorVehiclesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Motor vehicles [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_MotorVehiclesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Motor Vehicles [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerAssetCreditLossExpense_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Reversal (allowance) for expected credit losses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerAssetCreditLossExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract with Customer, Asset, Credit Loss Expense (Reversal)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractWithCustomerAssetAcquisitionOfSubsidiaries_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Acquisition of subsidiaries</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractWithCustomerAssetAcquisitionOfSubsidiaries_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract With Customer Asset Acquisition Of Subsidiaries</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractWithCustomerAssetAcquisitionOfSubsidiaries_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of contract with customer asset acquisition of subsidiaries.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractWithCustomerAssetDeconsolidationOfSubsidiaries_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Deconsolidation of subsidiaries</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractWithCustomerAssetDeconsolidationOfSubsidiaries_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract With Customer Asset Deconsolidation Of Subsidiaries</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractWithCustomerAssetDeconsolidationOfSubsidiaries_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of contract with customer asset deconsolidation of subsidiaries.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_DeconsolidationOfSubsidiaries_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deconsolidation of subsidiaries</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_DeconsolidationOfSubsidiaries_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of deconsolidation of subsidiaries.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractWithCustomerCreditLossesReversalAddition_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">(Reversal) addition</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractWithCustomerCreditLossesReversalAddition_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract With Customer Credit Losses (Reversal) Addition</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractWithCustomerCreditLossesReversalAddition_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of contract with customer credit losses (reversal) addition.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNetAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property and Equipment, Net [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_PropertyandEquipmentNetDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property and Equipment, Net (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationSaleOfPropertyPlantAndEquipment1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Depreciation expenses recognized in cost of revenue</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationSaleOfPropertyPlantAndEquipment1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accumulated Depreciation, Depletion and Amortization, Sale or Disposal of Property, Plant and Equipment</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_GoodwillDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Goodwill (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Property and equipment, gross</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant and Equipment, Gross</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AssetManagementAndProfessionalConsultancyServicesSegmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Asset management and professional consultancy services segment [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AssetManagementAndProfessionalConsultancyServicesSegmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Management And Professional Consultancy Services Segment Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ConstructionAndEngineeringServicesSegmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Construction and engineering services segment [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ConstructionAndEngineeringServicesSegmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Construction And Engineering Services Segment Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AssetManagementAndProfessionalConsultancyServicesSegmentOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Asset management and professional consultancy services segment [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AssetManagementAndProfessionalConsultancyServicesSegmentOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Management And Professional Consultancy Services Segment One Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_OtherIncomeScheduleofOtherIncomeDetailsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Other Income [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_OtherIncomeScheduleofOtherIncomeDetailsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Income - Schedule of Other Income (Details) [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_HiSpeedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Hi Speed [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_HiSpeedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Hi Speed Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_DoubleBraveLimitedDBLMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Double Brave Limited ("DBL&#8221;) [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_DoubleBraveLimitedDBLMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Double Brave Limited DBLMember</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ProfitCreditLimitedPCLMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Profit Credit Limited (&#8220;PCL&#8221;) [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ProfitCreditLimitedPCLMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Profit Credit Limited PCLMember</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_MajorCellarCompanyLimitedMCCLMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Major Cellar Company Limited (&#8220;MCCL&#8221;) [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_MajorCellarCompanyLimitedMCCLMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Major Cellar Company Limited MCCLMember</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accrued interest receivable from TSL</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Receivable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherPrepaidExpenseCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Others</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherPrepaidExpenseCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Prepaid Expense, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherReceivablesGrossCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total before allowance for expected credit losses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherReceivablesGrossCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Receivables, Gross, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllowanceForDoubtfulOtherReceivablesCurrent_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Allowance for expected credit losses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllowanceForDoubtfulOtherReceivablesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Beginning balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllowanceForDoubtfulOtherReceivablesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Ending balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllowanceForDoubtfulOtherReceivablesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Allowance for Credit Loss, Receivable, Other, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prepaid Expense and Other Assets, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfLongTermInvestmentsNetAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Long-Term Investments Net [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCashAndCashEquivalentsItemsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Restricted Cash [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCash_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Restricted cash</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCash_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Restricted Cash</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_PrepaidExpensesandOtherReceivablesNetDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prepaid Expenses and Other Receivables, Net (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity Method Investments [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Method Investments [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_LongtermGrowthRatePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Long-term growth rate, percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_LongtermGrowthRatePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Longterm Growth Rate Percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_LongtermGrowthRatePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Long-term growth rate, percentage.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating lease expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted-average lease term</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Weighted Average Remaining Lease Term</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Supplies_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prepayment to vendors</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Supplies_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prepaid Supplies</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredOfferingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred offering costs</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredOfferingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Offering Costs</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ReceivableFromDisposalOfPropertyAndEquipmentAndTerminationOfLeaseAgreement_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Receivable from disposal of property and equipment and termination of lease agreement</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ReceivableFromDisposalOfPropertyAndEquipmentAndTerminationOfLeaseAgreement_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Receivable From Disposal Of Property And Equipment And Termination Of Lease Agreement</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ReceivableFromDisposalOfPropertyAndEquipmentAndTerminationOfLeaseAgreement_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Receivable from disposal of property and equipment and termination of lease agreement.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_LoanReceivables_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loan receivables</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_LoanReceivables_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loan Receivables</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_LoanReceivables_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of loan receivable.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherReceivables_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ohter receivables</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherReceivables_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Receivables</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_LongTermInvestmentScheduleofLongTermInvestmentsNetDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Investment - Schedule of Long Term Investments, Net (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ConstructionManagementAndEngineeringDesignServicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Construction management and engineering design services [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ConstructionManagementAndEngineeringDesignServicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Construction Management And Engineering Design Services Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_MaintenanceServicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maintenance services [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_MaintenanceServicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Maintenance Services Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_WaaSMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">WaaS [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_WaaSMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Waa SMember</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AssetManagementServicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Asset management services [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AssetManagementServicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Management Services Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ProfessionalConsultancyServicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Professional consultancy services [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ProfessionalConsultancyServicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Professional Consultancy Services Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisaggregationOfRevenueLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disaggregation of Revenue [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerDurationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract with Customer, Duration [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerDurationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract with Customer, Duration [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_TwoThousandAndTwentySevenMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2027 [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_TwoThousandAndTwentySevenMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Two Thousand And Twenty Seven Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_GainOnDeconsolidationOfSubsidiaries_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gain on deconsolidation of subsidiaries</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_GainOnDeconsolidationOfSubsidiaries_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain on deconsolidation of subsidiaries</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_GainOnDeconsolidationOfSubsidiaries_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of gain on deconsolidation of subsidiaries.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfBusinessAcquisitionsByCashInflowAndOutflowAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Business Acquisitions by Cash Inflow and Outflow [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_JingxingHoldingsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Jingxing Holdings [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_VBSMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">VBS [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfBusinessAcquisitionsByCashInflowAndOutflowLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Acquisitions by Cash Inflow and Outflow [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_CashInflowFromAcquisitionAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash inflow from acquisition</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationCashProvidedFromAcquisition_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash provided from acquisition</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationCashProvidedFromAcquisition_lbl" xlink:role="http://www.xbrl.org/2003/role/label">BusinessCombination Cash Provided from Acquisition</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationCashProvidedFromAcquisition_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of Cash provided from acquisition.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_CashOutflowFromDeconsolidationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash outflow from deconsolidation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationSaleProceeds_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Add: Sale proceeds</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationSaleProceeds_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination Sale proceeds</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationSaleProceeds_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of business combination Sale proceeds.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationCashUsedInDeconsolidation_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Net cash outflows from deconsolidation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationCashUsedInDeconsolidation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination Cash used in deconsolidation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BusinessCombinationCashUsedInDeconsolidation_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of business combination cash used in deconsolidation.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_RetentionReceivableNet_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Beginning balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_RetentionReceivableNet_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Balance at end of year</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_RetentionReceivableNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Retention receivable, net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_RetentionReceivableNet_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of retention receivables, net.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ReversalAllowanceForExpectedCreditLosses_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Reversal (allowance) for expected credit losses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ReversalAllowanceForExpectedCreditLosses_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of retention receivables.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_InvestmentInVincitBuildSolutionCoLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment in Vincit Build Solution Co., Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2028</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid, Year Two</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2029</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid, Year Three</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2030</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid, Year Four</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2031</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid, Year Five</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2032</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid, after Year Five</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_TwoThousandAndTwentyEightMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2028 [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_TwoThousandAndTwentyEightMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Two Thousand And Twenty Eight [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ConstructionConsultancyServicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Construction consultancy services [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_GovernmentSubsidies_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Government subsidies</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_GovernmentSubsidies_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Government Subsidies</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_GovernmentSubsidies_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of government subsidies.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BankOfChinaMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Bank of China (Hong Kong) [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BankOfChinaMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Bank Of China Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BankOfChinaHongKongOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Bank of China (Hong Kong) [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_BankOfChinaHongKongOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Bank Of China Hong Kong One Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ChinaConstructionBankAsiaCorporationLimitednoteBMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">China Construction Bank (Asia) Corporation Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ChinaConstructionBankAsiaCorporationLimitednoteBMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">China Construction Bank Asia Corporation Limitednote BMember</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ChinaConstructionBankAsiaCorporationLimitednoteBOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">China Construction Bank (Asia) Corporation Limited [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ChinaConstructionBankAsiaCorporationLimitednoteBOneMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">China Construction Bank Asia Corporation Limitednote BOne Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfShortTermDebtTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Short-Term Debt [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total shareholders&#8217; equity</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Including Portion Attributable to Noncontrolling Interest</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Balance (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Balance (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shares, Outstanding</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueAcquisitions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Acquisition of subsidiaries</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueAcquisitions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Value, Acquisitions</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">IPO allotment</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Value, New Issues</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">BUSINESS COMBINATION</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedAssetsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">RESTRICTED CASH</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedAssetsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Restricted Assets Disclosure [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LoansNotesTradeAndOtherReceivablesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">PREPAID EXPENSES AND OTHER RECEIVABLES, NET</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LoansNotesTradeAndOtherReceivablesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loans, Notes, Trade and Other Receivables Disclosure [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">LONG-TERM INVESTMENT</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">PROPERTY AND EQUIPMENT, NET</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant and Equipment Disclosure [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">GOODWILL</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Goodwill Disclosure [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeasesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">RIGHT-OF-USE ASSETS AND LEASE LIABILITIES</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeasesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Leases [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepositContractsLiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract Liabilities [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractLiabilitiesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">CONTRACT LIABILITIES</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractLiabilitiesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract Liabilities Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ContractLiabilitiesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The entire disclosure for contract liabilities.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueFromContractWithCustomerTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">DISAGGREGATED REVENUE</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueFromContractWithCustomerTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue from Contract with Customer [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_PercentageOfOutstandingPrincipalBalance_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage of outstanding principal balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_PercentageOfOutstandingPrincipalBalance_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of outstanding principal balance.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TaxCreditCarryforwardAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Tax Credit Carryforward [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TaxCreditCarryforwardNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Tax Credit Carryforward, Name [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_DeferredTaxCreditMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Tax Credit [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_DeferredTaxAssetsValuationAllowanceNet_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Valuation Allowance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_DeferredTaxAssetsValuationAllowanceNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Tax Assets, Valuation Allowance Net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_DeferredTaxAssetsValuationAllowanceNet_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of deferred tax assets, valuation allowance net.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinitelivedIntangibleAssetsAcquired1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Acquisition of subsidiaries</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinitelivedIntangibleAssetsAcquired1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Asset, Finite-Lived, Acquired</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsPurchaseAccountingAdjustments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross for the year</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsPurchaseAccountingAdjustments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Asset, Finite-Lived, Measurement Period Adjustment</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfIntangibleAssets_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedNetLabel">Less: accumulated amortization</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfIntangibleAssets_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Amortization of intangible assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfIntangibleAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Amortization of intangible assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfIntangibleAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Asset, Finite-Lived, Amortization Expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Contracts receivable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Accounts Receivable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_DocumentAndEntityInformationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"></link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentInformationTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Information [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressesAddressTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Addresses, Address Type [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AddressTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Address Type [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_BusinessContactMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Business Contact</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_BusinessContactMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Contact [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentInformationLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Information [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCentralIndexKey_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Central Index Key</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCentralIndexKey_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Central Index Key</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentType_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Type</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentType_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Type</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentRegistrationStatement_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Registration Statement</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentRegistrationStatement_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Registration Statement</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentAnnualReport_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Annual Report</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentAnnualReport_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Annual Report</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Current Fiscal Year End Date</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Current Fiscal Year End Date</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentPeriodEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Period End Date</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentPeriodEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Period End Date</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalYearFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Fiscal Year Focus</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalYearFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Fiscal Year Focus</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentTransitionReport_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Document Transition Report</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentTransitionReport_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Transition Report</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GrossProfit_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Gross profit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GrossProfit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gross Profit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingExpensesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">OPERATING EXPENSES</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingExpensesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Expenses [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LaborAndRelatedExpense_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Personnel and benefit expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LaborAndRelatedExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Labor and Related Expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfessionalFees_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Professional fee</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfessionalFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Professional Fees</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_PromissoryNotesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">PROMISSORY NOTES</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_PromissoryNotesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Promissory Notes [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_PromissoryNotesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The entire disclosure of  promissory notes.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_RevenueFromStarCapitalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue from Star Capital [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Adjustments to reconcile net income to net cash provided by operating activities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepreciationAmortizationAndAccretionNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Depreciation of property and equipment</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepreciationAmortizationAndAccretionNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Depreciation, Amortization and Accretion, Net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherGeneralExpense_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Others</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherGeneralExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other General Expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">INCOME (LOSS) FROM OPERATION</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Income (Loss)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherIncomeDisclosureNonoperatingAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">OTHER INCOME (EXPENSES)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherIncomeDisclosureNonoperatingAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Income [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeOther_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Bank interest income</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestIncomeOther_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Income, Other</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpenseNonoperating_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Interest expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpenseNonoperating_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Expense, Nonoperating</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherNonoperatingIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other income</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherNonoperatingIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">government subsidies</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncontrollingInterestDecreaseFromDeconsolidation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deconsolidation of subsidiary</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncontrollingInterestDecreaseFromDeconsolidation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noncontrolling Interest, Decrease from Deconsolidation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeconsolidationGainOrLossAmount_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Gain on deconsolidation of subsidiaries</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeconsolidationGainOrLossAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deconsolidation, Gain (Loss), Amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfPromissoryNotesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Promissory Notes [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentMaturityDateDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maturity date</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentMaturityDateDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Maturity Date, Description</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentIssuedPrincipal_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Principal amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentIssuedPrincipal_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Issued, Principal</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentUnamortizedDiscount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Discount issued</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentUnamortizedDiscount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Unamortized Discount, Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Name [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SeniorPromissoryNoteMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Senior Promissory Note [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_PromissoryNotesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Promissory Notes [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of variable conversion price</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_PurchasePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Purchase price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_PurchasePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of purchase price.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of ownership cap</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsidiary, Ownership Percentage, Noncontrolling Owner</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredTaxLiabilitiesOther_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred tax liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredTaxLiabilitiesOther_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Tax Liabilities, Other</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ExpensesNotDeductiblePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Expenses not deductible</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ExpensesNotDeductiblePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Expenses Not Deductible Percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ExpensesNotDeductiblePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Expenses not deductible percentage.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tax loss not recognized</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Percent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxLiabilitiesNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred tax liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxLiabilitiesNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Income Tax Liabilities, Net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_DeferredTaxAssetsValuationAllowanceAcquisitionFromBusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Acquisition from business combination</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_DeferredTaxAssetsValuationAllowanceAcquisitionFromBusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Tax Assets Valuation Allowance Acquisition from Business Combination</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_DeferredTaxAssetsValuationAllowanceAcquisitionFromBusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of deferred tax assets valuation allowance acquisition from business combination.</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_CommonStockAuthorizedShareCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Authorized share capital</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_CommonStockAuthorizedShareCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock Authorized Share Capital</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_CommonStockAuthorizedShareCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of common stock authorized share capital.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amortization of operating lease right-of-use assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Right-of-Use Asset, Periodic Reduction</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_IncomeTaxRecoverableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tax recoverable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_IncomeTaxRecoverableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Tax Recoverable, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_IncomeTaxRecoverableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of income tax recoverable Current.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_DueToStarCapitalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Due to Star Capital	[Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_DueToStarCapitalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Due To Star Capital Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_DueToMrLiangMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Due to Mr. Liang [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_DueToMrLiangMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Due To Mr Liang Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_DueToMrChiuMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Due to Mr. Chiu [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_DueToMrChiuMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Due To Mr Chiu Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SubcontractingCostToSmartmoreMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subcontracting cost to Smartmore [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_SubcontractingCostToSmartmoreMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subcontracting Cost To Smartmore Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">CURRENT ASSETS</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets, Current [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_RetentionReceivablesNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Retention receivables, net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_RetentionReceivablesNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Retention Receivables Net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_RetentionReceivablesNet_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represents the amount of retention receivable, Net.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total non-current assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets, Noncurrent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">CURRENT LIABILITIES</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities, Current [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationTaxHolidays_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Income tax rate in the Cayman Islands, permanent tax holiday</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationTaxHolidays_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effective Income Tax Rate Reconciliation, Tax Holiday, Percent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Hong Kong statutory income tax rate</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationTaxExemptIncome_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Income not taxable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationTaxExemptIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effective Income Tax Rate Reconciliation, Tax Exempt Income, Percent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Over (under) provision of prior year</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Percent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ValuationAllowanceAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Valuation Allowance [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredTaxAssetsValuationAllowance_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedPeriodStartLabel">Balance, beginning of the year</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredTaxAssetsValuationAllowance_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedPeriodEndLabel">Balance, end of the year</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredTaxAssetsValuationAllowance_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Tax Assets, Valuation Allowance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additions</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfRelationshipsWithRelatedPartiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Relationships With Related Parties Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transaction [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_NEXXGlobalLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">NEXX Global Limited (&#8220;NEXX&#8221;) [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_NEXXGlobalLimitedMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">NEXXGlobal Limited Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_MrHauLimChungMrChungMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Mr. Hau Lim Chung (&#8220;Mr. Chung&#8221;) [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_MrHauLimChungMrChungMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Mr Hau Lim Chung Mr Chung Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_MrYuxiLiangMrLiangMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Mr. Yuxi Liang (&#8220;Mr. Liang&#8221;) [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_MrYuxiLiangMrLiangMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Mr Yuxi Liang Mr Liang Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_MrKaHoChiuMrChiuMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Mr. Ka Ho Chiu (&#8220;Mr. Chiu&#8221;) [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_MrKaHoChiuMrChiuMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Mr Ka Ho Chiu Mr Chiu Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionDescriptionOfTransaction_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Relationship</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionDescriptionOfTransaction_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transaction, Description of Transaction</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressPostalZipCode_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Entity Address, Postal Zip Code</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressPostalZipCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Postal Zip Code</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_GoodwillImpairmentAndLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Impairment loss on goodwill</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_GoodwillImpairmentAndLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Goodwill Impairment and Loss</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_GoodwillImpairmentAndLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of goodwill impairment and loss.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AcquisitionOfASubsidiaries_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Acquisition of a subsidiaries</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AcquisitionOfASubsidiaries_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Acquisition of a subsidiaries</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AcquisitionOfASubsidiaries_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of acquisition of a subsidiaries.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfStockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Stockholders' Equity [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additional paid-in capital</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Paid-in Capital [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Supplemental schedule of non-cash investing and financing activities:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinorityInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Non-controlling interests</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinorityInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Attributable to Noncontrolling Interest</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ordinary shares, shares outstanding (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares, Outstanding</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Statement [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">IPO allotment (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Shares, New Issues</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueConversionOfUnits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Conversion of Class B to Class A</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueConversionOfUnits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Value, Conversion of Units</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Conversion of Class B to Class A (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Shares, Conversion of Units</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_IncreaseDecreaseInRetentionReceivables_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Retention receivables</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_IncreaseDecreaseInRetentionReceivables_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase Decrease In Retention Receivables</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_IncreaseDecreaseInRetentionReceivables_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of retention receivables.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPrepaidExpensesOther_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Prepaid expenses and other receivables</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPrepaidExpensesOther_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Prepaid Expenses, Other</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Accounts Payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccruedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accrued expenses and other payables</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccruedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Accrued Liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInContractWithCustomerLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contract liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInContractWithCustomerLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Contract with Customer, Liability</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tax payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Income Taxes Payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating lease liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Operating Lease Liability</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net cash used in investing activities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Investing Activity, Including Discontinued Operation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash flows from financing activities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfRelatedPartyDebt_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Advance to related parties</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfRelatedPartyDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Repayments of Related Party Debt</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfAllowanceForExpectedCreditLossesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Allowance for Expected Credit Loss [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AllowanceForExpectedCreditLossesAddition_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Addition</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AllowanceForExpectedCreditLossesAddition_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Allowance for Expected Credit Losses Addition</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AllowanceForExpectedCreditLossesAddition_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of allowance for expected credit losses addition.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfChangesInTheFairValueOfEmbeddedDerivativeOfPromissoryNotesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Changes in the Fair Value of Embedded Derivative of Promissory Notes</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfChangesInTheFairValueOfEmbeddedDerivativeOfPromissoryNotesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Tabular disclosure of changes in the fair value of embedded derivative of promissory notes.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share Price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Expected volatility</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of risk-free rate</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Remaining contractual term</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmbeddedDerivativeFairValueOfEmbeddedDerivativeNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value of embedded derivatives</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmbeddedDerivativeFairValueOfEmbeddedDerivativeNet_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Fair value of embedded derivative at issuance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmbeddedDerivativeFairValueOfEmbeddedDerivativeNet_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Fair value of embedded derivative at March 31, 2026</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmbeddedDerivativeFairValueOfEmbeddedDerivativeNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Embedded Derivative, Fair Value of Embedded Derivative, Net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmbeddedDerivativeAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Changes in the Fair Value of Embedded Derivative of Promissory Notes [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_IssuanceCostsIncludedInAdministrativeExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Issuance costs included in administrative expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_IssuanceCostsIncludedInAdministrativeExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represents the amount of issuance costs included in administrative expenses.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ChangeInFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Change in fair value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ChangeInFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of change in fair value of embedded derivative.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmbeddedDerivativeLossOnEmbeddedDerivative_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value loss on promissory notes</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmbeddedDerivativeLossOnEmbeddedDerivative_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Embedded Derivative, Loss on Embedded Derivative</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_FairValueLossOnPromissoryNotesDayOne_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair value loss on promissory notes day-one</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_FairValueLossOnPromissoryNotesDayOne_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represents the amount of fair value loss on promissory notes day-one.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value gain of embedded derivative</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Embedded Derivative, Gain (Loss) on Embedded Derivative, Net, Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfContractsReceivableNetTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Contracts Receivable, Net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfContractsReceivableNetTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Contracts Receivable Net Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_ScheduleOfContractsReceivableNetTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The disclosure of contracts receivable, net.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Other Income</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Other Nonoperating Income (Expense) [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SellingGeneralAndAdministrativeExpensesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">General and administrative expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SellingGeneralAndAdministrativeExpensesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Selling, General and Administrative Expenses, Policy [Policy Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GovernmentAssistancePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Government subsidies</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GovernmentAssistancePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Government Assistance [Policy Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income taxes</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Tax, Policy [Policy Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComprehensiveIncomePolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Comprehensive income</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComprehensiveIncomePolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Comprehensive Income, Policy [Policy Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commitments and contingencies</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies, Policy [Policy Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerSharePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Earnings per share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerSharePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Policy [Policy Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Recently issued accounting pronouncements</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">New Accounting Pronouncements, Policy [Policy Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Prepaid Expenses and Other Receivables, Net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Long-Term Investments, Net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Property and Equipment, Net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant and Equipment [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Accrued Expenses and Other Payables</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseCostTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Right-of-Use Assets and Lease Liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseCostTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lease, Cost [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Maturity Analysis of Future Minimum Lease Payments</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Contract Liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Income Tax Expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Statutory Rates to the Effective Tax Rate</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Deferred Tax Assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Deferred Tax Assets and Liabilities [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SummaryOfValuationAllowanceTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Valuation Allowance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SummaryOfValuationAllowanceTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Summary of Valuation Allowance [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskManagementStrategyAndGovernanceTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cybersecurity Risk Management, Strategy, and Governance [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskManagementStrategyAndGovernanceLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cybersecurity Risk Management, Strategy, and Governance [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskManagementProcessesForAssessingIdentifyingAndManagingThreatsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskManagementProcessesForAssessingIdentifyingAndManagingThreatsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskManagementProcessesIntegratedTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cybersecurity Risk Management Processes Integrated [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="cyd_CybersecurityRiskManagementProcessesIntegratedTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cybersecurity Risk Management Processes Integrated [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_DeferredOfferingCostsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred offering costs</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_DeferredOfferingCostsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Offering Costs Policy Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_DeferredOfferingCostsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The disclosure of accounting policies for deferred offering costs.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AccountsPayablePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AccountsPayablePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Payable Policy Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AccountsPayablePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disclosure of accounting policy for accounts payable.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AccruedExpensesAndOtherPayablePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accrued expenses and other payables</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AccruedExpensesAndOtherPayablePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accrued Expenses And Other Payable Policy Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_AccruedExpensesAndOtherPayablePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disclosure of accounting policy for accrued expenses and other payable.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PostemploymentBenefitPlansPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Employee benefit plan</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PostemploymentBenefitPlansPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Postemployment Benefit Plans, Policy [Policy Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_RelatedPartiesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Related parties</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_RelatedPartiesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Parties Policy Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_RelatedPartiesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disclosure of accounting policy for related parties.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeLeasesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating lease</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeLeasesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Leases [Policy Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_NonControllingInterestsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Non-controlling interests</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_NonControllingInterestsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Non Controlling Interests Policy Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="ritr_NonControllingInterestsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disclosure of accounting policy for non-controlling interests.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CostOfSalesPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cost of revenue</link:label>
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