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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_FairValueMeasurementsScheduleofChangesintheFairValueofLevel3WarrantLiabilitiesDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurements - Schedule of Changes in the Fair Value of Level 3 Warrant Liabilities (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_FairValueMeasurementsScheduleofChangesintheFairValueofLevel3WarrantLiabilitiesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurements Scheduleof Changesinthe Fair Valueof Level 3 Warrant Liabilities [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ReturnOfCapitalSubscriptionSharesLiabilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Return of Capital Subscription Shares Liability [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ReturnOfCapitalSubscriptionSharesLiabilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Return Of Capital Subscription Shares Liability Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_SubscriptionExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Initial measurement on August 11, 2025</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_SubscriptionExpense_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Subscription expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_SubscriptionExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Subscription expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_SubscriptionExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subscription Expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_SubscriptionExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of subscription expense.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueOptionChangesInFairValueGainLoss1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Change in fair value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueOptionChangesInFairValueGainLoss1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Option, Changes in Fair Value, Gain (Loss)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Fair value as of ending balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Fair value as of beginning balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value of liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities, Fair Value Disclosure</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesFairValueDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Changes in the Fair Value of Level 3 Warrant Liabilities [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Warrant or Right [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Warrant or Right [Domain]</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/terseLabel">Reportable segment</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="us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Segment Reporting Information, by Segment [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subsequent Event [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event [Member]</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="us-gaap_SubsequentEventTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event Type [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event Type [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsidiarySaleOfStockAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sale of Stock [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TypeOfArrangementAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collaborative Arrangement and Arrangement Other than Collaborative [Axis]</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">Interest income on investments held in Trust Account</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeInterest_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Interest income on investments held in Trust Account</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_SegmentReportingInformationAdditionalInformationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Net (Loss) Income and Total Assets [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_BusinessCombinationAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination Agreement [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_NewAceGreensMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">New Ace Green&#8217;s [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PercentageOfCumulativePreferredStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of cumulative preferred stock</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PercentageOfCumulativePreferredStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage of Cumulative Preferred Stock</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PercentageOfCumulativePreferredStock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The percentage of cumulative preferred stock.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PIPEInvestorsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">PIPE Investors [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PurchaseOfShares_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Purchase of share price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PurchaseOfShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Purchase of Shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PurchaseOfShares_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The number of shares purchase.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_SeriesACumulativeConvertiblePreferredStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Series A Cumulative Convertible Preferred Stock [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_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="atek_TrustAccountMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Trust Account [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_TrustAccountMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Trust Account 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="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="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="us-gaap_PreferredStockConvertibleConversionPrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Conversion price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockConvertibleConversionPrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Convertible, Conversion Price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Par value per share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock, par value (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Par or Stated Value Per Share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock, shares authorized</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Preferred stock, shares authorized</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Shares Authorized</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsHeldInTrustNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investments held in Trust Account</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsHeldInTrustNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Investment held in trust account</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsHeldInTrustNoncurrent_lbl" xlink:role="http://www.xbrl.org/2009/role/netLabel">Investments held in trust account</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsHeldInTrustNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets held in trust account</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Cash_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_Cash_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">General and administrative expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">General and administrative</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">General and Administrative Expense</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_SaleOfStockNameOfTransactionDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sale of Stock [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapital_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_AdditionalPaidInCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Paid in Capital</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_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_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_EntitySmallBusiness_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Small Business</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_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="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts payable and accrued expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Payable and Accrued Liabilities, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ReturnOfCapitalSubscriptionSharesLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Return of capital subscription shares liability</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ReturnOfCapitalSubscriptionSharesLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Return Of Capital Subscription Shares Liability</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ReturnOfCapitalSubscriptionSharesLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of return of capital subscription shares liability.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_DueToRedeemingStockholders_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Due to redeeming stockholders</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_DueToRedeemingStockholders_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Due To Redeeming Stockholders</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_DueToRedeemingStockholders_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of due to redeeming stockholders.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_DeferredUnderwritingFeePayableNonCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred underwriting fee payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_DeferredUnderwritingFeePayableNonCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Deferred underwriting remains outstanding</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_DeferredUnderwritingFeePayableNonCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Underwriting Fee Payable Non Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_DeferredUnderwritingFeePayableNonCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of deferred underwriting fee payable non current.</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_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_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_StockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">STOCKHOLDERS&#8217; DEFICIT</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Attributable to Parent [Abstract]</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">Due from Sponsor</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/label">Other Receivables, Net, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ReversalOfPriorYearInterestAndPenaltiesOnExciseTaxLiability_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Reversal of interest and penalties on excise tax liability</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ReversalOfPriorYearInterestAndPenaltiesOnExciseTaxLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reversal of prior year interest and penalties on excise tax liability</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ReversalOfPriorYearInterestAndPenaltiesOnExciseTaxLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Reversal Of Prior Year Interest And Penalties On Excise Tax Liability</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ReversalOfPriorYearInterestAndPenaltiesOnExciseTaxLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of reversal of prior year interest and penalties on excise tax liability.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_FranchiseTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Franchise tax</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_FranchiseTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Franchise Tax</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_FranchiseTax_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Franchise tax.

.</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 Common Stock</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</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 Common Stock</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">Class A Common Stock [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityNoteDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stockholders&#8217; Deficit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityNoteDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_SubscriptionExpenseOnEventOfDefaultSubscriptionShareLiabilityChange_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Subscription expense on event of default subscription share liability change</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_SubscriptionExpenseOnEventOfDefaultSubscriptionShareLiabilityChange_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subscription expense on event of default subscription share liability change</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_SubscriptionExpenseOnEventOfDefaultSubscriptionShareLiabilityChange_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Subscription expense on event of default subscription share liability change</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncashInvestingAndFinancingItemsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">SUPPLEMENTAL DISCLOSURE OF NONCASH ACTIVITIES:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncashInvestingAndFinancingItemsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noncash Investing and Financing Items [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Related Party Transactions</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transactions Disclosure [Text Block]</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/terseLabel">Prepaid expenses and other assets</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="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="us-gaap_TemporaryEquityCarryingAmountAttributableToParent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock subject to possible redemption</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityCarryingAmountAttributableToParent_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Class A common stock subject to possible redemption at ending</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityCarryingAmountAttributableToParent_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Class A common stock subject to possible redemption at beginning</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityCarryingAmountAttributableToParent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity, Carrying Amount, Attributable to Parent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NonoperatingIncomeExpenseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">OTHER INCOME(EXPENSE)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NonoperatingIncomeExpenseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Nonoperating Income (Expense) [Abstract]</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_RestrictedCashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash and cash equivalents &#8211; restricted</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="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Adjustments to reconcile net loss to net cash used in 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="atek_LossOnReturnOfCapitalLiabilityChange_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loss on change in fair value of Return of capital subscription shares liability</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_LossOnReturnOfCapitalLiabilityChange_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Loss on change in fair value of return of capital subscription shares liability</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_LossOnReturnOfCapitalLiabilityChange_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loss on return of capital liability change</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_LossOnReturnOfCapitalLiabilityChange_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Loss on return of capital liability change</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForRepurchaseOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Redemptions of Class A common stock</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForRepurchaseOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments for Repurchase of Common Stock</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/terseLabel">Related Party</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 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_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Organization and Business Operations</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock, value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Value, Issued</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">Due to related party</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_TemporaryEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">CLASS A COMMON STOCK SUBJECT TO POSSIBLE REDEMPTION</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Class A Common Stock Subject to Possible Redemption Reflected on the Condensed Consolidated Balance Sheets are Reconciled [Abstract]</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">Accumulated deficit</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/label">Retained Earnings (Accumulated Deficit)</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_NotesPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Note payable &#8211; related party</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/verboseLabel">Borrowings net amount</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</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">TOTAL STOCKHOLDERS&#8217; DEFICIT</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_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_StockholdersEquity_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_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Attributable to Parent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidTaxes_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prepaid income taxes</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidTaxes_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prepaid Taxes</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/terseLabel">Weighted average shares outstanding of Class A common stock (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/verboseLabel">Weighted average shares outstanding</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>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingencies_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_CommitmentsAndContingencies_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies</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>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract]</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_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_LiabilitiesAndStockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">LIABILITIES, CLASS A COMMON STOCK SUBJECT TO POSSIBLE REDEMPTION AND STOCKHOLDERS&#8217; DEFICIT</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_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="us-gaap_FairValueDisclosuresAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurements [Abstract]</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_FairValueDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Measurements</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Disclosures [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stockholders&#8217; Deficit [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_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_CommitmentsAndContingenciesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies Disclosure [Text Block]</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 Transactions [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_IncreaseDecreaseInDueFromSponsor_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">Due from Sponsor</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_IncreaseDecreaseInDueFromSponsor_lbl" xlink:role="http://www.xbrl.org/2003/role/label">IncreaseDecreaseInDueFromSponsor</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_IncreaseDecreaseInDueFromSponsor_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Due from Sponsor</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalCashFlowElementsAndSupplementalCashFlowInformationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash paid during the year for:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalCashFlowElementsAndSupplementalCashFlowInformationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Cash Flow Elements and Supplemental Cash Flow Information [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PrivatePlacementTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Private Placement</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PrivatePlacementTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Private Placement Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PrivatePlacementTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Entire disclosure of private placement.</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/periodStartLabel">CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD</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/verboseLabel">CASH AND RESTRICTED CASH AND CASH EQUIVALENTS, END OF 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/periodEndLabel">CASH AND CASH EQUIVALENTS, END OF PERIOD</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/terseLabel">Cash and cash equivalents</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/label">Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation</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 Common Stock</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 Common Stock [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/label">Class B Common Stock [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</link:label>
    <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>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfRelatedPartyDebt_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">Reimbursements to related party</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="atek_ExciseTaxPayableAttributableToRedemptionOfClassACommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Excise tax payable attributable to redemption of Class A common stock</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ExciseTaxPayableAttributableToRedemptionOfClassACommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represents the amount of excise tax payable attributable to redemption of Class A common stock.</link:label>
    <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>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Operating Activity, Including Discontinued Operation</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_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Value, Issued</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">CASH FLOWS FROM INVESTING ACTIVITIES</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract]</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="atek_InitialPublicOfferingAndOverAllotmentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Initial Public Offering and Over-Allotment [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PlusAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Plus:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PlusAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Plus [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ScheduleOfComputeBasicAndDilutedNetIncomeLossPerShareAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Compute Basic And Diluted Net Income Loss Per Share Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_SummaryofSignificantAccountingPoliciesScheduleofComputeBasicandDilutedNetIncomeLossPerShareDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Summary of Significant Accounting Policies - Schedule of Compute Basic and Diluted Net Income (Loss) Per Share (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Allocation of net loss</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income (Loss) Available to Common Stockholders, Basic</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Diluted net loss per common share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Diluted net loss per share (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Diluted</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">Additional amounts</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_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="us-gaap_SharesIssuedPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Price per share (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesIssuedPricePerShare_lbl" xlink:role="http://www.xbrl.org/2009/role/netLabel">Shares issued price (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesIssuedPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Shares issued price shares (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesIssuedPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shares Issued, Price Per Share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityAggregateAmountOfRedemptionRequirement_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Trust account redemption</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityAggregateAmountOfRedemptionRequirement_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity, Aggregate Amount of Redemption Requirement</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 Business Operations [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExaminationPenaltiesAccrued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Payment of penalties</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExaminationPenaltiesAccrued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Tax Examination, Penalties Accrued</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IPOMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">IPO [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IPOMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">IPO [Member]</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">FDIC coverage limit</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_ProceedsFromIssuanceOfDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amount received</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Issuance of Debt</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfPrivatePlacement_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Generating gross proceeds</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfPrivatePlacement_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Generating gross proceeds of private placement (in Dollars)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfPrivatePlacement_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Issuance of Private Placement</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_SubscriptionPerShares_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subscription per shares (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_SubscriptionPerShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subscription Per Shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_SubscriptionPerShares_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of subscription per shares.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForFees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additional payment amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments for Other Fees</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SalesAndExciseTaxPayableCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Excise tax payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SalesAndExciseTaxPayableCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sales and Excise Tax Payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest and penalties incurred</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total</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">Aggregate shares (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/verboseLabel">Number of shares of common stock (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_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="atek_ThirdExtensionMeetingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Third Extension Meeting [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ThirdExtensionMeetingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Third Extension Meeting Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PrivatePlacementWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Private Placement Warrants [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PrivatePlacementWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Private Placement Warrants Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_CashWithdrawnFromTrustInConnectionWithRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash withdrawn from the trust account</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_CashWithdrawnFromTrustInConnectionWithRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Withdrawn From Trust In Connection With Redemption</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_CashWithdrawnFromTrustInConnectionWithRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of cash withdrawn from trust in connection with redemption.</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">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="atek_PublicWarrantsAndPrivatePlacementWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Public Warrants and Private Placement Warrants [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PublicWarrantsAndPrivatePlacementWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Public Warrants And Private Placement Warrants Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_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="atek_FourthExtensionSpecialMeetingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fourth Extension Special Meeting [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_FourthExtensionSpecialMeetingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fourth Extension Special Meeting Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_CitigroupMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Citigroup [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_CitigroupMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Citigroup Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_UnderwritingFees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Underwriting fees</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_UnderwritingFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Underwriting Fees</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_UnderwritingFees_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Underwriting fees.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_DeferredUnderwritingCommissions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred underwriting commissions</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_DeferredUnderwritingCommissions_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Deferred underwriting expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_DeferredUnderwritingCommissions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Underwriting Commissions</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_DeferredUnderwritingCommissions_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of deferred underwriting commissions.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Warrant [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrant [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_CommonStockIssuedAndOutstandingPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock issued and outstanding per share (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_CommonStockIssuedAndOutstandingPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock Issued And Outstanding Per Share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_CommonStockIssuedAndOutstandingPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Common stock issued and outstanding per share.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquitySharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Common stock subject to possible redemption (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquitySharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2009/role/netLabel">Common stock subject to possible redemption, shares outstanding</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquitySharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock subject to possible redemption, shares at redemption value (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquitySharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity, Shares Outstanding</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">Cash and cash equivalents &#8211; restricted</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="atek_DeferredUnderwritingsCommission_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred underwriting commissions</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_DeferredUnderwritingsCommission_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Underwritings Commission</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_DeferredUnderwritingsCommission_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of deferred underwriting commissions.</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">Recent Accounting Pronouncements</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfStockLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Organization and Business Operations [Line Items]</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfStockLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Initial Public Offering and Over-Allotment [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCashAndCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Restricted cash balance amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCashAndCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Restricted Cash and Cash Equivalent</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/verboseLabel">Common stock 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/2009/role/netLabel">Common stock outstanding</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">Common stock, 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="atek_AnnualMeetingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Annual Meeting [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_AnnualMeetingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Annual Meeting Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_AggregateFundedAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Aggregate funded amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_AggregateFundedAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Aggregate Funded Amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_AggregateFundedAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount aggregate funded amount.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SaleOfTrustAssetsToPayExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deposits in trust account established</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SaleOfTrustAssetsToPayExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sale of Trust Assets to Pay Expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRedeemedOrCalledDuringPeriodShares_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Redeemed shares (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRedeemedOrCalledDuringPeriodShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Redeemed or Called During Period, Shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Warrants exercised (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Warrants outstanding</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Warrant or Right, Outstanding</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_OtherDeferredCostsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Other costs</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherDeferredCostsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other offering costs</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherDeferredCostsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Deferred Costs, Net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash equivalents</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Equivalents, at Carrying Value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_AccountingForWarrantsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounting for Warrants</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_AccountingForWarrantsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting For Warrants Policy Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_AccountingForWarrantsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The policy of accounting for warrants.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Compute Basic and Diluted Net Income Loss Per Share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_EmergingGrowthCompanyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Emerging Growth Company</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_EmergingGrowthCompanyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Emerging Growth Company Policy Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_EmergingGrowthCompanyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Disclosure of accounting policy for emerging growth company.</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 Total Provision for Income Taxes</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="atek_MinimumNetTangibleAssetsUponConsummationOfBusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net tangible assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_MinimumNetTangibleAssetsUponConsummationOfBusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Minimum Net Tangible Assets Upon Consummation Of Business Combination</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_MinimumNetTangibleAssetsUponConsummationOfBusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of net tangible asset.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Basis of Presentation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Basis of Accounting, Policy [Policy Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskCreditRisk_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Concentration of Credit Risk</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConcentrationRiskCreditRisk_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Concentration Risk, Credit Risk, Policy [Policy Text Block]</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_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Purchase of warrants (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Warrants to purchase common shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Warrant or Right, Number of Securities Called by Warrants or Rights</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="atek_ExcessOfNecessaryForTaxPurposes_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tax purposes</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ExcessOfNecessaryForTaxPurposes_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Excess Of Necessary For Tax Purposes</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ExcessOfNecessaryForTaxPurposes_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of excess of the amount necessary for tax purposes.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_FairMarketValueOfAssetsHeldInTrustAccountPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair market value of assets held in trust account percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_FairMarketValueOfAssetsHeldInTrustAccountPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Market Value Of Assets Held In Trust Account Percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_FairMarketValueOfAssetsHeldInTrustAccountPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Fair market value of assets held in trust account.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_FundsForPaymentOfGeneralOperatingExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Funds for payment of general operating expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_FundsForPaymentOfGeneralOperatingExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Funds For Payment Of General Operating Expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_FundsForPaymentOfGeneralOperatingExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of funds for payment of general operating expenses.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Common Stock [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common Stock</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnersCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Capital contribution</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PartnersCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Partners' Capital</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OverAllotmentOptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Over-Allotment Option [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OverAllotmentOptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Over-Allotment Option [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Outstanding balance</link:label>
    <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</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LoansPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investor loaned</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LoansPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loans Payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ExcessStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Purchase of shares (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ExcessStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Excess Stock, Shares Issued</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentUnamortizedDiscountCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Borrowings discount allocation amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentUnamortizedDiscountCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Unamortized Discount, Current</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="us-gaap_DebtInstrumentFaceAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Received principal amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentFaceAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Face Amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accretion of carrying value to redemption value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity, Accretion to Redemption Value, Adjustment</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ClassACommonStockSubjectToPossibleRedemptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class A Common Stock Subject to Possible Redemption [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ClassACommonStockSubjectToPossibleRedemptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class ACommon Stock Subject To Possible Redemption Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForUnderwritingExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred underwriting fees payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForUnderwritingExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments for Underwriting Expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ScheduleOfClassACommonStockSubjectToPossibleRedemptionReflectedOnTheCondensedConsolidatedBalanceSheetsAreReconciledTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Class A Common Stock Subject to Possible Redemption Reflected on the Condensed Consolidated Balance Sheets are Reconciled [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PlanNameAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Plan Name [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PayableCommonStockRedeemed_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Redeemed payment</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PayableCommonStockRedeemed_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payable, Common Stock Redeemed</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shares exercised (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsHeldInTrust_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Aggregate amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsHeldInTrust_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset, Held-in-Trust</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PlanNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Plan Name [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SeparateAccountLiabilityWithdrawal_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amount withdrawn from trust account</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SeparateAccountLiabilityWithdrawal_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Separate Account, Liability, Withdrawal</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Exercise price of warrants (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl" xlink:role="http://www.xbrl.org/2009/role/netLabel">Common stock price per share (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Exercise price of warrant (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Price per share (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PricePerShareInTrustAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Price per share in trust account (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PricePerShareInTrustAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Price Per Share In Trust Account</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PricePerShareInTrustAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Price per share in trust account.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PublicPricePerShareHeldInTrustAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Public price per share held in trust account (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PublicPricePerShareHeldInTrustAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Public Price Per Share Held In Trust Account</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PublicPricePerShareHeldInTrustAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Public price per share held in trust account.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_SponsorAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sponsor amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_SponsorAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sponsor Amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_SponsorAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of sponsor amount.</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">Convertible per unit (in Dollars per share)</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>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_AggregateSharesPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Aggregate Shares Percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_AggregateSharesPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Aggregate shares percentage.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SaleOfStockPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Price per unit</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ExciseTaxPercentageOfTheFairMarketValue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Excise tax percentage of the fair market value.</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_OfferingCostsAssociatedWithTheInitialPublicOfferingPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Offering Costs Associated with the Initial Public Offering</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_OfferingCostsAssociatedWithTheInitialPublicOfferingPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The policy of offering costs associated with the initial public offering.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash and Cash Equivalents</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ArrangementsAndNonarrangementTransactionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collaborative Arrangement and Arrangement Other than Collaborative [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockRedeemedOrCalledDuringPeriodValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Redeemed value</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Class A Common Stock Subject to Possible Redemption Reflected on the Condensed Consolidated Balance Sheets are Reconciled</link:label>
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    <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 Net Deferred Tax Assets and Liabilities</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="atek_TwoZeroTwoFourAnnualMeetingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2024 Annual Meeting [Member]</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_DissolutionExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dissolution expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_DissolutionExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dissolution Expenses</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredCostsCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Outstanding amount</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net operating loss carryforward</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transactions [Line Items]</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/verboseLabel">Aggregate price amount</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PriceThresholdOfNewlyIssuedStockToCauseAdjustmentOfExerciseWarrantPricePercentageOfEquityProceedsFromIssuance_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of equity proceeds from issuance.</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PublicWarrantsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Public Warrants Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ThresholdPeriodForEffectiveWithinStatementAfterBusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Threshold period for effective within statement after business combination</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ThresholdPeriodForEffectiveWithinStatementAfterBusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Threshold Period For Effective Within Statement After Business Combination</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ThresholdPeriodForEffectiveWithinStatementAfterBusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Threshold period for effective within statement after business combination.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ThresholdPeriodForFillingRegistrationStatementAfterBusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Threshold period for filling registration statement after business combination</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ThresholdPeriodForFillingRegistrationStatementAfterBusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Threshold Period For Filling Registration Statement After Business Combination</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ThresholdPeriodForFillingRegistrationStatementAfterBusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Threshold period for filling registration statement after business combination.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_WarrantsAndRightsOutstandingExercisableTermAfterBusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Warrants exercisable term</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_WarrantsAndRightsOutstandingExercisableTermAfterBusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrants And Rights Outstanding Exercisable Term After Business Combination</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_WarrantsAndRightsOutstandingExercisableTermAfterBusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Warrants And Rights Outstanding Exercisable Term.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Preferred stock, shares issued</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock, shares issued (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Shares Issued</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Preferred stock, shares outstanding</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Preferred stock, shares outstanding (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Preferred Stock, Shares Outstanding</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrivatePlacementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Private Placement Warrants [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrivatePlacementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Private Placement [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrivatePlacementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Private Placement [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_FairValueMeasurementsScheduleofAssetsthatareMeasuredatFairValueonaRecurringBasisDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurements - Schedule of Assets that are Measured at Fair Value on a Recurring Basis (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_FairValueOfSubscriptionSharesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value of subscription shares [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_FairValueOfSubscriptionSharesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Of Subscription Shares Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ScheduleOfAssetsThatAreMeasuredAtFairValueOnARecurringBasisAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Assets That Are Measured At Fair Value On ARecurring Basis Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investments held in Trust Account</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets, Fair Value Disclosure</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsFairValueDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Assets:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsFairValueDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets, Fair Value Disclosure [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalents [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value of subscription shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Fair Value Disclosure</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionAcquireeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_DeferredUnderwritingCommissionsPerUnit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred underwriting commissions per unit (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_DeferredUnderwritingCommissionsPerUnit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Underwriting Commissions Per Unit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_DeferredUnderwritingCommissionsPerUnit_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Deferred underwriting commissions per unit.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_DeferredUnderwritingCommission_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred underwriting commission</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_DeferredUnderwritingCommission_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Underwriting Commission</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_DeferredUnderwritingCommission_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of deferred underwriting commission.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_EffectiveIncomeTaxRateReconciliationSubscriptionExpensePercent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Subscription expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_EffectiveIncomeTaxRateReconciliationSubscriptionExpensePercent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effective Income Tax Rate Reconciliation, Subscription Expense, Percent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_EffectiveIncomeTaxRateReconciliationSubscriptionExpensePercent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Effective income tax rate reconciliation, subscription expense, percent.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_EffectiveIncomeTaxRateReconciliationPermDifferencesPercent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Perm differences</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_EffectiveIncomeTaxRateReconciliationPermDifferencesPercent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effective Income Tax Rate Reconciliation Perm Differences Percent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_EffectiveIncomeTaxRateReconciliationPermDifferencesPercent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Effective income tax rate reconciliation perm differences percent.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_EffectiveIncomeTaxRateReconciliationLossOnReturnOfCapitalLiabilityChangePercent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loss on return of capital liability change</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_EffectiveIncomeTaxRateReconciliationLossOnReturnOfCapitalLiabilityChangePercent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effective Income Tax Rate Reconciliation Loss on Return of Capital Liability Change Percent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_EffectiveIncomeTaxRateReconciliationLossOnReturnOfCapitalLiabilityChangePercent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Effective income tax rate reconciliation loss on return of capital liability change percent.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityFairValueDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityFairValueDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Fair Value Disclosure [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Assets that are Measured at Fair Value on a Recurring Basis [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByMeasurementFrequencyAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Frequency [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel1Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Quoted Prices in Active Markets (Level 1) [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel1Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 1 [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel2Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Significant Other Observable Inputs (Level 2) [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel2Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 2 [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_CommitmentsandContingenciesDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_AggregatePurchasePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Aggregate purchase price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_AggregatePurchasePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Aggregate Purchase Price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_AggregatePurchasePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of aggregate purchase price.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_AceGreenRecyclingsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ace Green Recycling&#8217;s [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_AceGreenRecyclingsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Ace Green Recyclings Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ClassOfWarrantOrRightRedemptionOfWarrantsOrRightsStockPriceTrigger_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock equals or exceeds (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ClassOfWarrantOrRightRedemptionOfWarrantsOrRightsStockPriceTrigger_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class Of Warrant Or Right Redemption Of Warrants Or Rights Stock Price Trigger</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ClassOfWarrantOrRightRedemptionOfWarrantsOrRightsStockPriceTrigger_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Stock price trigger for redemption of public warrants.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ClassOfWarrantOrRightMinimumThresholdWrittenNoticePeriodForRedemptionOfWarrants_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prior written notice of redemption</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ClassOfWarrantOrRightMinimumThresholdWrittenNoticePeriodForRedemptionOfWarrants_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class Of Warrant Or Right Minimum Threshold Written Notice Period For Redemption Of Warrants</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ClassOfWarrantOrRightMinimumThresholdWrittenNoticePeriodForRedemptionOfWarrants_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Minimum threshold written notice period for redemption of public warrants.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_AfterCompletionOfBusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">After completion of business combination</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_AfterCompletionOfBusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/label">After Completion of Business Combination</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_AfterCompletionOfBusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">After completion of business combination.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_NumberOfAdditionalUnitsPurchased_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of additional units purchased (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_NumberOfAdditionalUnitsPurchased_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number Of Additional Units Purchased</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_NumberOfAdditionalUnitsPurchased_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of additional units purchased.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_LockUpAgreementsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lock-Up Agreements [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_CashDepositedToTheTrustAccountToRefundTheOverWithdrawal_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash deposited to the Trust Account to Refund the Over Withdrawal</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_CashDepositedToTheTrustAccountToRefundTheOverWithdrawal_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Deposited To The Trust Account To Refund The Over Withdrawal</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_CashDepositedToTheTrustAccountToRefundTheOverWithdrawal_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represent the amount of cash deposited to the Trust Account to refund the over withdrawal.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">State taxes, net of federal tax benefit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Fines and penalties</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effective Income Tax Rate Reconciliation, Other Adjustments, Percent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_FairValueMeasurementsScheduleofAssetsthatareMeasuredatFairValueonaRecurringBasisParentheticalsDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurements - Schedule of Assets that are Measured at Fair Value on a Recurring Basis (Parentheticals) (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_FairValueOfSubscriptionShares_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value of subscription shares (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_FairValueOfSubscriptionShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Of Subscription Shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_FairValueOfSubscriptionShares_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represents the amount of fair value of subscription shares.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepositsAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Deposit into trust account</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingCodmIndividualTitleAndPositionOrGroupOrCommitteeNameExtensibleEnumeration_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingCodmProfitLossMeasureHowUsedDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Segment description</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingInformationLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting Information [Line Items]</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>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AmendmentDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amendment Description</link:label>
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    <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_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_EntityEmergingGrowthCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Emerging Growth Company</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CoverAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cover [Abstract]</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_RestrictedCashAndCashEquivalentsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">CASH AND RESTRICTED CASH AND CASH EQUIVALENTS, END OF YEAR</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedCashAndCashEquivalentsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Restricted Cash and Cash Equivalent [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromRelatedPartyDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from promissory note &#8211; related party</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromRelatedPartyDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Related Party Debt</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>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PaymentOfCashDepositedToTrustAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Cash deposited to Trust Account.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_IncreaseDecreaseInExciseTaxPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Excise tax payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_IncreaseDecreaseInExciseTaxPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase Decrease In Excise Tax Payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_IncreaseDecreaseInExciseTaxPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The increase (decrease) during the reporting period in the amounts excise tax payable.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CostsAndExpensesRelatedParty_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Expenses paid by related party</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CostsAndExpensesRelatedParty_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Costs and Expenses, Related Party</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ReversalOfExciseTaxPayableAttributableToRedemptionOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Reversal Of Excise Tax Payable Attributable To Redemption Of Common Stock</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ReversalOfExciseTaxPayableAttributableToRedemptionOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of reversal of excise tax payable attributable to redemption of common stock.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SignificantAccountingPoliciesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Significant Accounting Policies</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SignificantAccountingPoliciesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Significant Accounting Policies [Text Block]</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Events [Text Block]</link:label>
    <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 LOSS</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net loss</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2009/role/netLabel">Net loss</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income (Loss) Attributable to Parent</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/totalLabel">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="us-gaap_WarrantsAndRightsNoteDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Private Placement [Abstract]</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="atek_AdjustmentsToAdditionalPaidInCapitalExciseTaxPayableAttributableToRedemptionOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Excise tax payable attributable to redemption of Class A common stock</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_AdjustmentsToAdditionalPaidInCapitalExciseTaxPayableAttributableToRedemptionOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustments To Additional Paid In Capital Excise Tax Payable Attributable To Redemption Of Common Stock</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_AdjustmentsToAdditionalPaidInCapitalExciseTaxPayableAttributableToRedemptionOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of excise tax payable attributable to redemption of common stock.</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="atek_AdjustmentsToAdditionalPaidInCapitalCommonStockToBeTransferredToFundPromissoryNote_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class A common stock to be transferred to fund promissory note</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_AdjustmentsToAdditionalPaidInCapitalCommonStockToBeTransferredToFundPromissoryNote_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustments To Additional Paid In Capital Common Stock To Be Transferred To Fund Promissory Note</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_AdjustmentsToAdditionalPaidInCapitalCommonStockToBeTransferredToFundPromissoryNote_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Common stock to be transferred to fund promissory note.</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="atek_StockIssuedDuringPeriodValueRemeasurementOfCommonStockSubjectToRedemption_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Remeasurement of common stock subject to redemption</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_StockIssuedDuringPeriodValueRemeasurementOfCommonStockSubjectToRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period Value Remeasurement Of Common Stock Subject To Redemption</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_StockIssuedDuringPeriodValueRemeasurementOfCommonStockSubjectToRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Value of remeasurement of common stock subject to redemption.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfFinancingCosts_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Finance costs &#8211; discount on debt issuance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfFinancingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Finance costs &#8211; discount on debt issuance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfFinancingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amortization of Debt Issuance Costs</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_IncreaseDecreaseInDueToRelatedParties_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Due to related party</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInDueToRelatedParties_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Due to Related Parties</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ProceedsFromPolarSubscriptionAgreement_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from Polar Subscription Agreement</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ProceedsFromPolarSubscriptionAgreement_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds From Polar Subscription Agreement</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ProceedsFromPolarSubscriptionAgreement_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of proceeds from polar subscription agreement.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">SUPPLEMENTAL CASH FLOW INFORMATION:</link:label>
    <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>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts payable and accrued expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Accounts Payable and Accrued Liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ClassACommonStockToBeTransferredToFundPromissoryNote_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class A common stock to be transferred to fund promissory note</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ClassACommonStockToBeTransferredToFundPromissoryNote_lbl" xlink:role="http://www.xbrl.org/2003/role/label">ClassACommonStockToBeTransferredToFundPromissoryNote</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ClassACommonStockToBeTransferredToFundPromissoryNote_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Class A common stock to be transferred to fund promissory note</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/totalLabel">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_IncreaseDecreaseInAccruedIncomeTaxesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income 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_IncreaseDecreaseInPrepaidTaxes_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Prepaid income taxes</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPrepaidTaxes_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Prepaid Taxes</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_CashWithdrawnFromTrustAccountInConnectionWithRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash withdrawn from Trust Account in connection with redemption</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_CashWithdrawnFromTrustAccountInConnectionWithRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Withdrawn From Trust Account In Connection With Redemption</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_CashWithdrawnFromTrustAccountInConnectionWithRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of cash withdrawn from Trust Account in connection with redemption.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SalesAndExciseTaxPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Excise tax payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SalesAndExciseTaxPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sales and Excise Tax Payable, Current</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_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">LOSS BEFORE PROVISION FOR INCOME TAXES</link:label>
    <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_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Basic net loss per share (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Basic net loss per common share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Basic</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_CashWithdrawnFromTrustAccountToPayFranchiseAndIncomeTaxes_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash withdrawn from Trust Account to pay franchise and income taxes</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_CashWithdrawnFromTrustAccountToPayFranchiseAndIncomeTaxes_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Withdrawn From Trust Account To Pay Franchise And Income Taxes</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_CashWithdrawnFromTrustAccountToPayFranchiseAndIncomeTaxes_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Cash withdrawn from Trust Account to pay franchise and income taxes.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxesPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income tax paid</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxesPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Taxes Paid, Net</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="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_RetainedEarningsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accumulated Deficit</link:label>
    <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="atek_IncreaseDecreaseInFranchiseTaxPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Franchise tax payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_IncreaseDecreaseInFranchiseTaxPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase Decrease In Franchise Tax Payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_IncreaseDecreaseInFranchiseTaxPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of franchise tax payable.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NonoperatingIncomeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total other income, net</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, 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/verboseLabel">Common stock, 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/label">Common Stock, Shares Authorized</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">NET CHANGE IN CASH AND CASH EQUIVALENTS</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Excluding Exchange Rate Effect, Including Discontinued Operation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromConvertibleDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proceeds from convertible note &#8211; related party</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromConvertibleDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Convertible Debt</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_AdjustmentsToAdditionalPaidInCapitalReversalOfExciseTaxPayableAttributableToRedemptionOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reversal of excise tax payable attributable to redemption of common stock</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_AdjustmentsToAdditionalPaidInCapitalReversalOfExciseTaxPayableAttributableToRedemptionOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustments To Additional Paid In Capital Reversal Of Excise Tax Payable Attributable To Redemption Of Common Stock</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_AdjustmentsToAdditionalPaidInCapitalReversalOfExciseTaxPayableAttributableToRedemptionOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of reversal of excise tax payable attributable to redemption of common stock.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityComponentDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Component [Domain]</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="atek_StockIssuedDuringPeriodValueClassACommonStockToBeTransferredInConnectionWithPolarSubscriptionAgreement_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Class A common stock to be transferred in connection with Polar subscription agreement</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_StockIssuedDuringPeriodValueClassACommonStockToBeTransferredInConnectionWithPolarSubscriptionAgreement_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period Value Class ACommon Stock To Be Transferred In Connection With Polar Subscription Agreement</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_StockIssuedDuringPeriodValueClassACommonStockToBeTransferredInConnectionWithPolarSubscriptionAgreement_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of class A common stock to be transferred in connection with Polar subscription agreement.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_InitialPublicOfferingAndOverAllotmentTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Initial Public Offering and Over-Allotment</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_InitialPublicOfferingAndOverAllotmentTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Initial Public Offering And Over Allotment Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_InitialPublicOfferingAndOverAllotmentTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The entire disclosure for Initial Public Offering and Over-Allotment.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConvertibleNotesPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Convertible note - related party</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConvertibleNotesPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Notes outstanding</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConvertibleNotesPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Convertible Notes Payable, 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_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Prepaid expenses and other assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Prepaid Expense and Other Assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Income Taxes</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Tax Disclosure [Text Block]</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_NetCashProvidedByUsedInFinancingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net cash used in 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="us-gaap_TemporaryEquityRedemptionPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock subject to possible redemption, per share (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityRedemptionPricePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity, Redemption Price 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">Common stock, 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/label">Common Stock, Par or Stated Value Per Share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock subject to possible redemption, par value (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity, Par or Stated Value Per Share</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 Net Loss and Total Assets</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/label">Schedule of Segment Reporting Information, by Segment [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PrivatePlacementDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Private Placement (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_SponsorOwned_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sponsor owned shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_SponsorOwned_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sponsor Owned</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_SponsorOwned_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of sponsor owned.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_SponsorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sponsor [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_SponsorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sponsor Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_SponsorFeePaid_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Sponsor fee paid</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_SponsorFeePaid_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sponsor Fee Paid</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_SponsorFeePaid_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represent the amount of sponsor fee paid.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ReturnOfCapitalSubscriptionSharesExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Capital subscription shares expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ReturnOfCapitalSubscriptionSharesExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Return Of Capital Subscription Shares Expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_ReturnOfCapitalSubscriptionSharesExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of return of capital subscription shares expense.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_RelatedPartyTransactionsDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transactions (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PromissoryNoteWithRelatedPartyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Promissory Note with Related Party [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PromissoryNoteWithRelatedPartyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Promissory Note With Related Party Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionSharePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Business combination entity price (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionSharePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Price Per Share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_SupportServicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Support Services [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_SubscriptionOfShareLliability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subscription of share liability</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_SubscriptionOfShareLliability_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subscription Of Share Lliability</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_SubscriptionOfShareLliability_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of subscription share lliability.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_UnsecuredPromissoryNoteMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unsecured Promissory Note [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_UnsecuredPromissoryNoteMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unsecured Promissory Note Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_WorkingCapitalLoans_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Working capital loans</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_WorkingCapitalLoans_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Working Capital Loans</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_WorkingCapitalLoans_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Working capital loans.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_WorkingCapitalLoansMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Working Capital Loans [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_WorkingCapitalLoansMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Working Capital Loans [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_WorkingCapitalNoteMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Working Capital Note [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_WorkingCapitalNoteMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Working Capital Note Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdministrativeFeesExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Administrative support services fees</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdministrativeFeesExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Administrative Fees Expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasicLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Compute Basic and Diluted Net Income (Loss) Per Share [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Denominator:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Number of Shares Outstanding, Basic [Abstract]</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">Net Loss per Common 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_ProceedsFromIssuanceInitialPublicOffering_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additional gross proceeds</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="atek_SpecialMeetingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Special Meeting [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_SpecialMeetingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Special Meeting Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_DeferredUnderwritingRemainsOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Remains outstanding</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_DeferredUnderwritingRemainsOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Underwriting Remains Outstanding</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_DeferredUnderwritingRemainsOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of deferred underwriting commissions.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_FirstExtensionSpecialMeetingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">First Extension Special Meeting [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_FirstExtensionSpecialMeetingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">First Extension Special Meeting Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PercentageOfOutstandingShares_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of outstanding shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PercentageOfOutstandingShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Outstanding Shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PercentageOfOutstandingShares_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of outstanding shares.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_OutstandingCommonStockNotRedeemed_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Outstanding common stock not redeemed</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_OutstandingCommonStockNotRedeemed_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Outstanding Common Stock Not Redeemed</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_OutstandingCommonStockNotRedeemed_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of outstanding common stock not redeemed.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_MisallocatedRestrictedFunds_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Misallocated restricted funds</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_MisallocatedRestrictedFunds_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Misallocated Restricted Funds</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_MisallocatedRestrictedFunds_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of misallocated restricted funds.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PublicSharesPerecentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Public shares percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PublicSharesPerecentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Public Shares Perecentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PublicSharesPerecentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Public Shares Percentage.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PrivatePlacementUnitMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Private Placement Unit [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PrivatePlacementUnitMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Private Placement Unit Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PriceOfPublicPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Public per share (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PriceOfPublicPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Price Of Public Per Share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PriceOfPublicPerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of public per share.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Potential shares (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_FundsWithdrawnFromTrustAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Funds withdrawn from the trust account</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_FundsWithdrawnFromTrustAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Funds Withdrawn From Trust Account</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_FundsWithdrawnFromTrustAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of funds withdrawn from the trust account.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_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="atek_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="us-gaap_CapitalUnitsTotalCostToInvestors_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investor capital contribution</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalUnitsTotalCostToInvestors_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Capital Units, Cost to Investors</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationSeparatelyRecognizedTransactionsDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Separately Recognized Transaction [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_InitialPublicOfferingandOverAllotmentDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Initial Public Offering and Over-Allotment (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_InitialPublicOfferingAndOverAllotmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Initial Public Offering and Over-Allotment [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_contributionOnDefaultPerShares_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contribution on default per shares (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_contributionOnDefaultPerShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">contribution On Default Per Shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_contributionOnDefaultPerShares_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Contribution on default per shares.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_FounderShares1Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Founder Shares [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_FounderShares1Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Founder Shares1 Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_KevinWrightAndJeaninePercivalWrightRevocableTrustMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Kevin Wright and Jeanine Percival Wright Revocable Trust [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_KevinWrightAndJeaninePercivalWrightRevocableTrustMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Kevin Wright And Jeanine Percival Wright Revocable Trust Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PolarCapitalInvestmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Polar Capital Investment [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PolarCapitalInvestmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Polar Capital Investment Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PolarIssuedShares_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Issued shares (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PolarIssuedShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Polar Issued Shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PolarIssuedShares_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of polar issued shares.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PolarMultiStrategyMasterFundMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Polar Multi-Strategy Master Fund [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PolarMultiStrategyMasterFundMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Polar Multi Strategy Master Fund Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of shares issuable per warrant</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Warrant or Right, Number of Securities Called by Each Warrant or Right</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExaminationInterestAccrued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Payment of Interest</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExaminationInterestAccrued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Tax Examination, Interest Accrued</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_AthenaTechnologyAcquisitionCorpIIMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Athena Technology Acquisition Corp. II [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_AthenaTechnologyAcquisitionCorpIIMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Athena Technology Acquisition Corp IIMember</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Business combination percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Achieved in Stages, Preacquisition Equity Interest in Acquiree, Percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationSeparatelyRecognizedTransactionsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Separately Recognized Transaction [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_UnitsIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of units sold</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_UnitsIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Number of units issued</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_UnitsIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Units Issued During Period Shares New Issues</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_UnitsIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of units issued.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PublicWarrant_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Public Warrant</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PublicWarrant_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Public Warrant</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PublicWarrant_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Description of public warrant.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PublicShareMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Public Share [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_PublicShareMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Public Share Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_NumberOfShareIssuedPerUnit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of share issued per unit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_NumberOfShareIssuedPerUnit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number Of Share Issued Per Unit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_NumberOfShareIssuedPerUnit_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Number of share issued per unit.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherGeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">General operating expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherGeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other General and Administrative Expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additional of investment contributed</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Investments</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="srt_ConsolidatedEntitiesAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Consolidated Entities [Axis]</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">U.S [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>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_WorkingCapitalLoansOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Working capital loans outstanding</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_WorkingCapitalLoansOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Working Capital Loans Outstanding</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_WorkingCapitalLoansOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of working capital loans outstanding.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investments Held in Trust Account</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Policy [Policy Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityAccretionToRedemptionValue_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Redemption of common stock subject to possible redemption</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityAccretionToRedemptionValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity, Accretion to Redemption Value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_TemporaryEquityDiminutionOfCarryingValueToRedemptionValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Diminution of carrying value to redemption value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_TemporaryEquityDiminutionOfCarryingValueToRedemptionValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity Diminution Of Carrying Value To Redemption Value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_TemporaryEquityDiminutionOfCarryingValueToRedemptionValue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of diminution of carrying value to redemption value.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_LessAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Less:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_LessAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Less Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_AugustSubscriptionAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">August Subscription Agreement [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueOfFinancialInstrumentsPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value of Financial Instruments</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueOfFinancialInstrumentsPolicy_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value of Financial Instruments, Policy [Policy Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UseOfEstimates_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Use of Estimates</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UseOfEstimates_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Use of Estimates, Policy [Policy Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedIncomeTaxes_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income tax</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedIncomeTaxes_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accrued Income Taxes</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_TrustAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Trust Agreement [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_TrustAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Trust Agreement Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_WithdrawnFromTrustAccountToPay_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Withdrawn from trust account to pay</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_WithdrawnFromTrustAccountToPay_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Withdrawn From Trust Account To Pay</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_WithdrawnFromTrustAccountToPay_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount withdrawn from the trust account to pay.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_TenderedForRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Redemption amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_TenderedForRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Tendered For Redemption</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_TenderedForRedemption_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of tendered for redemption.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TemporaryEquityLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Temporary Equity [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_RestrictedFundsInOperatingAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Restricted funds in operating account</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_RestrictedFundsInOperatingAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Restricted Funds In Operating Account</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_RestrictedFundsInOperatingAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of restricted funds in the operating account.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_OrganizationandBusinessOperationsDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Organization and Business Operations (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_OutstandingCommonStockNotRedeemed1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Outstanding common stock not redeemed per share (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_OutstandingCommonStockNotRedeemed1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Outstanding Common Stock Not Redeemed1</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="atek_OutstandingCommonStockNotRedeemed1_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of outstanding common stock not redeemed.</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 Reconciliation of Statutory Federal Income Tax Rate to Company&#8217;s 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_IncomeTaxesPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Income tax paid</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxesPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Taxes Paid</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestAndOtherIncome_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_InterestAndOtherIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest and Other Income</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilityForUncertainTaxPositionsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Excise tax liability</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilityForUncertainTaxPositionsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liability for Uncertainty in Income Taxes, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Changes in the Fair Value of Level 3 Return of Capital Subscription Shares Liability</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Liabilities Measured on Recurring Basis [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConversionOfStockSharesIssued1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Conversion of shares (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConversionOfStockSharesIssued1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Conversion of Stock, Shares Issued</link:label>
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