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  <xsd:element name="EffectiveIncomeTaxRateReconciliationRDAdditionalDeductionPercent" id="jdzg_EffectiveIncomeTaxRateReconciliationRDAdditionalDeductionPercent" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IncomeTaxDisclosureTable" id="jdzg_IncomeTaxDisclosureTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IncomeTaxDisclosureLineItems" id="jdzg_IncomeTaxDisclosureLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AssessableProfitsOfFirstHkd2MillionMember" id="jdzg_AssessableProfitsOfFirstHkd2MillionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AssessableProfitsAboveHkd2MillionMember" id="jdzg_AssessableProfitsAboveHkd2MillionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SichuanKebiaoTechnologyCo.LtdMember" id="jdzg_SichuanKebiaoTechnologyCo.LtdMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ContractWithCustomerLiabilityPolicyTextBlock" id="jdzg_ContractWithCustomerLiabilityPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ValueAddedTaxPolicyTextBlock" id="jdzg_ValueAddedTaxPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="RelatedPartiesPolicyTextBlock" id="jdzg_RelatedPartiesPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ConvenienceTranslationPolicyTextBlock" id="jdzg_ConvenienceTranslationPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ScheduleOfPropertyPlantAndEquipmentUsefulLifeTableTextBlock" id="jdzg_ScheduleOfPropertyPlantAndEquipmentUsefulLifeTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="FairValueLiabilitiesLevel1ToLevel2TransfersAmount1" id="jdzg_FairValueLiabilitiesLevel1ToLevel2TransfersAmount1" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="FairValueLiabilitiesLevel2ToLevel1TransfersAmount1" id="jdzg_FairValueLiabilitiesLevel2ToLevel1TransfersAmount1" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="FairValueAssetLevel1ToLevel2TransfersAmount" id="jdzg_FairValueAssetLevel1ToLevel2TransfersAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="FairValueAssetLevel2ToLevel1TransfersAmount" id="jdzg_FairValueAssetLevel2ToLevel1TransfersAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ScheduleOfSubsidiariesTableTextBlock" id="jdzg_ScheduleOfSubsidiariesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ShenzhenKebiaoTechnologyCo.LtdMember" id="jdzg_ShenzhenKebiaoTechnologyCo.LtdMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="JiadezhigaoLimitedMember" id="jdzg_JiadezhigaoLimitedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="WismassInternationalHoldingsLimitedMember" id="jdzg_WismassInternationalHoldingsLimitedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SichuanJiadezhigaoTechnologyLimitedMember" id="jdzg_SichuanJiadezhigaoTechnologyLimitedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="Mr.YuanLiMs.ZhirongZhouSichuanZhongtaizhigaoInformationTechnologyConsultingPartnershipAndSichuanJiaduozhigaoInformationTechnologyConsultingPartnershipMember" id="jdzg_Mr.YuanLiMs.ZhirongZhouSichuanZhongtaizhigaoInformationTechnologyConsultingPartnershipAndSichuanJiaduozhigaoInformationTechnologyConsultingPartnershipMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="WismassBviMember" id="jdzg_WismassBviMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PercentageOfEquityInterestIssuedInExchange" id="jdzg_PercentageOfEquityInterestIssuedInExchange" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="ConsiderationTransferredOnOwnershipAcquired" id="jdzg_ConsiderationTransferredOnOwnershipAcquired" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="Mr.YuanLiMember" id="jdzg_Mr.YuanLiMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="StatutoryReserves" id="jdzg_StatutoryReserves" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="CommonStockIssuedMember" id="jdzg_CommonStockIssuedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CommonStockSubscribedMember" id="jdzg_CommonStockSubscribedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="StatutoryReservesMember" id="jdzg_StatutoryReservesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ScheduleOfCondensedIncomeAndComprehensiveStatementTableTextBlock" id="jdzg_ScheduleOfCondensedIncomeAndComprehensiveStatementTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="PrepaymentsForAcquisitionDisclosureTextBlock" id="jdzg_PrepaymentsForAcquisitionDisclosureTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ScheduleOfPrepaymentsForAcquisitionOfEquityInterestsTableTextBlock" id="jdzg_ScheduleOfPrepaymentsForAcquisitionOfEquityInterestsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="SichuanKunyuanSafetyTechnologyServicesCo.LtdMember" id="jdzg_SichuanKunyuanSafetyTechnologyServicesCo.LtdMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SichuanJiazhiTaizhangSafetyTechnologyCo.LtdMember" id="jdzg_SichuanJiazhiTaizhangSafetyTechnologyCo.LtdMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ChengduMeirusiTechnologyCo.LtdMember" id="jdzg_ChengduMeirusiTechnologyCo.LtdMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CommitmentAbstract" id="jdzg_CommitmentAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ContingenciesAbstract" id="jdzg_ContingenciesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LesseeOperatingLeaseLiabilityToBePaidYearOneIncludingPropertyManagementFee" id="jdzg_LesseeOperatingLeaseLiabilityToBePaidYearOneIncludingPropertyManagementFee" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="LesseeOperatingLeaseLiabilityToBePaidYearTwoIncludingPropertyManagementFee" id="jdzg_LesseeOperatingLeaseLiabilityToBePaidYearTwoIncludingPropertyManagementFee" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="LesseeOperatingLeaseLiabilityToBePaidTotalIncludingPropertyManagementFee" id="jdzg_LesseeOperatingLeaseLiabilityToBePaidTotalIncludingPropertyManagementFee" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="FiniteLivedIntangibleAssetsAmortizationExpenseYearFiveAndThereafter" id="jdzg_FiniteLivedIntangibleAssetsAmortizationExpenseYearFiveAndThereafter" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ValueAddedTaxRatePercentage" id="jdzg_ValueAddedTaxRatePercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="StatutorySurplusReserveAppropriationOfAfterTaxProfitRequiredMinimumPercentage" id="jdzg_StatutorySurplusReserveAppropriationOfAfterTaxProfitRequiredMinimumPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="StatutorySurplusReserveLimitRegisteredCapitalPercentage" id="jdzg_StatutorySurplusReserveLimitRegisteredCapitalPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="AdjustmentsToAdditionalPaidInCapitalEffectOfChangeOfSharesOfParValue" id="jdzg_AdjustmentsToAdditionalPaidInCapitalEffectOfChangeOfSharesOfParValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="JDLiyuanLimitedMember" id="jdzg_JDLiyuanLimitedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ScheduleOfFiniteLivedIntangibleAssetsUsefulLifeTableTextBlock" id="jdzg_ScheduleOfFiniteLivedIntangibleAssetsUsefulLifeTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="SafetyTechnologyTrainingServicesMember" id="jdzg_SafetyTechnologyTrainingServicesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OnlineCourseServicesMember" id="jdzg_OnlineCourseServicesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LoanFromChinaConstructionBankDueMarch212028Member" id="jdzg_LoanFromChinaConstructionBankDueMarch212028Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EmployeeLoansCurrent" id="jdzg_EmployeeLoansCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="OtherProjectInvestmentCurrent" id="jdzg_OtherProjectInvestmentCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="GuoqiangWuMember" id="jdzg_GuoqiangWuMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="HkYifuInternationalLimitedMember" id="jdzg_HkYifuInternationalLimitedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CustomizedEquipmentMember" id="jdzg_CustomizedEquipmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ShortTermOperatingLeaseExpense" id="jdzg_ShortTermOperatingLeaseExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="UnallocatedAbstract" id="jdzg_UnallocatedAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PreFundedWarrantsMember" id="jdzg_PreFundedWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SharesIssuableUponInvestorOptionExercise" id="jdzg_SharesIssuableUponInvestorOptionExercise" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="NumberOfVotesPerShare" id="jdzg_NumberOfVotesPerShare" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="ContractWithCustomerLiabilityBillingInAdvance" id="jdzg_ContractWithCustomerLiabilityBillingInAdvance" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="EquityIncentivePlan2025Member" id="jdzg_EquityIncentivePlan2025Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EquityIncentivePlan2026Member" id="jdzg_EquityIncentivePlan2026Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="February2026OfferingMember" id="jdzg_February2026OfferingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OperatingLeaseRightOfUseAssetAmortizationAndInterestPaymentsOnLiability" id="jdzg_OperatingLeaseRightOfUseAssetAmortizationAndInterestPaymentsOnLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="AccountsReceivableAllowanceForCreditLossAdditions" id="jdzg_AccountsReceivableAllowanceForCreditLossAdditions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="LoanFromIndustrialAndCommercialBankOfChinaDueMarch222027Member" id="jdzg_LoanFromIndustrialAndCommercialBankOfChinaDueMarch222027Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="Mr.XiangLanMember" id="jdzg_Mr.XiangLanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LesseeOperatingLeaseLiabilityToBePaidYearThreeIncludingPropertyManagementFee" id="jdzg_LesseeOperatingLeaseLiabilityToBePaidYearThreeIncludingPropertyManagementFee" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="FiniteLivedIntangibleAssetsAcquiredAtCost" id="jdzg_FiniteLivedIntangibleAssetsAcquiredAtCost" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="LoanFromBankOfChinaDueAugust112027Member" id="jdzg_LoanFromBankOfChinaDueAugust112027Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="InitialClosingOfOfferingMember" id="jdzg_InitialClosingOfOfferingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SecondClosingOfOfferingMember" id="jdzg_SecondClosingOfOfferingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CommonStockValueIncrementalAuthorizedCapital" id="jdzg_CommonStockValueIncrementalAuthorizedCapital" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IncrementalCommonStockSharesAuthorized" id="jdzg_IncrementalCommonStockSharesAuthorized" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="CommonStockParOrStatedValuePerShareRestated" id="jdzg_CommonStockParOrStatedValuePerShareRestated" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="PreferredStockParOrStatedValuePerShareRestated" id="jdzg_PreferredStockParOrStatedValuePerShareRestated" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="IncrementalPreferredStockSharesAuthorized" id="jdzg_IncrementalPreferredStockSharesAuthorized" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
</xsd:schema>
