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  <xs:element name="ScheduleOfUnauditedCondensedConsolidatedStatementsOfOperationsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_ScheduleOfUnauditedCondensedConsolidatedStatementsOfOperationsAbstract"/>
  <xs:element name="ScheduleOfUnauditedCondensedConsolidatedStatementsOfChangesInStockholdersEquityAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_ScheduleOfUnauditedCondensedConsolidatedStatementsOfChangesInStockholdersEquityAbstract"/>
  <xs:element name="ScheduleOfUnauditedCondensedConsolidatedStatementOfCashFlowsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_ScheduleOfUnauditedCondensedConsolidatedStatementOfCashFlowsAbstract"/>
  <xs:element name="CostAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_CostAbstract"/>
  <xs:element name="AccumulatedAmortizationAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_AccumulatedAmortizationAbstract"/>
  <xs:element name="AssetsAbstract0" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_AssetsAbstract0"/>
  <xs:element name="AsPreviouslyReportedAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_AsPreviouslyReportedAbstract"/>
  <xs:element name="AdjustmentsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_AdjustmentsAbstract"/>
  <xs:element name="AsCorrectedAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_AsCorrectedAbstract"/>
  <xs:element name="CashFlowsFromOperatingActivitiesAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_CashFlowsFromOperatingActivitiesAbstract"/>
  <xs:element name="CashFlowsFromInvestingActivitiesAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_CashFlowsFromInvestingActivitiesAbstract"/>
  <xs:element name="CashFlowsFromFinancingActivitiesAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_CashFlowsFromFinancingActivitiesAbstract"/>
  <xs:element name="NontradeAccountsReceivableRelatedParties" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="emat_NontradeAccountsReceivableRelatedParties"/>
  <xs:element name="AccountsPayableRelatedParties" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_AccountsPayableRelatedParties"/>
  <xs:element name="NontradeAccountsPayable" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_NontradeAccountsPayable"/>
  <xs:element name="NontradeAccountsPayableRelatedParties" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_NontradeAccountsPayableRelatedParties"/>
  <xs:element name="ShortTermDebtRelatedParties" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_ShortTermDebtRelatedParties"/>
  <xs:element name="ConvertiblePromissoryNotesCurrent" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_ConvertiblePromissoryNotesCurrent"/>
  <xs:element name="CPUShareAllocationObligation" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_CPUShareAllocationObligation"/>
  <xs:element name="LongTermDebtrelatedParties" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_LongTermDebtrelatedParties"/>
  <xs:element name="EquityclassifiedCPUShareAllocation" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_EquityclassifiedCPUShareAllocation"/>
  <xs:element name="ConvertiblePreferredUnitsNote13Equity" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_ConvertiblePreferredUnitsNote13Equity"/>
  <xs:element name="FairValueOfFinancialInstruments" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="emat_FairValueOfFinancialInstruments"/>
  <xs:element name="SharesIssuedDuringNoncontrollingInterestsResultingFromTheBusinessCombination" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="emat_SharesIssuedDuringNoncontrollingInterestsResultingFromTheBusinessCombination"/>
  <xs:element name="SharesIssuedDuringIssuesNoncontrollingInterestsResultingFromTheBusinessCombination" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_SharesIssuedDuringIssuesNoncontrollingInterestsResultingFromTheBusinessCombination"/>
  <xs:element name="ShareIssuanceUponSettlementOfTheEMShareObligations" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="emat_ShareIssuanceUponSettlementOfTheEMShareObligations"/>
  <xs:element name="ShareIssuanceUponOfSettlementOfTheEMShareObligations" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_ShareIssuanceUponOfSettlementOfTheEMShareObligations"/>
  <xs:element name="ReclassOfCPUShareAllocationObligationsToEquity" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_ReclassOfCPUShareAllocationObligationsToEquity"/>
  <xs:element name="ActuariallossGainOnDefinedSeveranceBenefitsNetOfTax" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="emat_ActuariallossGainOnDefinedSeveranceBenefitsNetOfTax"/>
  <xs:element name="PensionBenefitsProvision" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="emat_PensionBenefitsProvision"/>
  <xs:element name="GainsOnForeignExchangeTranslation" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_GainsOnForeignExchangeTranslation"/>
  <xs:element name="LossOnForeignExchangeTranslation" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="emat_LossOnForeignExchangeTranslation"/>
  <xs:element name="ChangeInFairValueOfCPUShareAllocationObligations" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="emat_ChangeInFairValueOfCPUShareAllocationObligations"/>
  <xs:element name="ChangeInFairValueOfJulyInvestmentAgreementDerivative" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="emat_ChangeInFairValueOfJulyInvestmentAgreementDerivative"/>
  <xs:element name="DayOneLossOnCPUShareAllocationObligations" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="emat_DayOneLossOnCPUShareAllocationObligations"/>
  <xs:element name="InvestorExpensesIncurredOnBehalfOfCompany" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="emat_InvestorExpensesIncurredOnBehalfOfCompany"/>
  <xs:element name="PaidInKindInterests" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_PaidInKindInterests"/>
  <xs:element name="IncreaseDecreaseInDeferredTransactionCosts" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="emat_IncreaseDecreaseInDeferredTransactionCosts"/>
  <xs:element name="PaymentsForLeaseholdDeposits" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="emat_PaymentsForLeaseholdDeposits"/>
  <xs:element name="PaymentForAcquisitionOfBusiness" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_PaymentForAcquisitionOfBusiness"/>
  <xs:element name="RepaymentOfCurrentPortionOfLongtermDebt" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_RepaymentOfCurrentPortionOfLongtermDebt"/>
  <xs:element name="PaymentOfLeaseLiabilities" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_PaymentOfLeaseLiabilities"/>
  <xs:element name="CashAssumedInReverseRecapitalization" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="emat_CashAssumedInReverseRecapitalization"/>
  <xs:element name="PaymentsToEffectuateReverseRecapitalization" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_PaymentsToEffectuateReverseRecapitalization"/>
  <xs:element name="PaymentsForDeferredTransactionCosts" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_PaymentsForDeferredTransactionCosts"/>
  <xs:element name="FranchiseTaxes" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_FranchiseTaxes"/>
  <xs:element name="NoncashConsiderationAssumedInBusinessCombination" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_NoncashConsiderationAssumedInBusinessCombination"/>
  <xs:element name="AcquisitionOfBusinessSharesOfCommonStockExchanged" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_AcquisitionOfBusinessSharesOfCommonStockExchanged"/>
  <xs:element name="NetNoncashLiabilitiesAssumedInReverseRecapitalization" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_NetNoncashLiabilitiesAssumedInReverseRecapitalization"/>
  <xs:element name="ReclassificationOfCPUShareAllocationObligationFromLiabilityToEquity" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_ReclassificationOfCPUShareAllocationObligationFromLiabilityToEquity"/>
  <xs:element name="IssuanceOfCommonStockForSettlementOfJulyInvestmentAgreementDerivativeLiabilities" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="emat_IssuanceOfCommonStockForSettlementOfJulyInvestmentAgreementDerivativeLiabilities"/>
  <xs:element name="IssuanceOfCommonStockForSettlementOfCPUShareAllocationObligationsLiabilities" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="emat_IssuanceOfCommonStockForSettlementOfCPUShareAllocationObligationsLiabilities"/>
  <xs:element name="FairValueOfCPUShareAllocationObligationsIssuedInConnectionWithIssuanceOfCertainCon" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_FairValueOfCPUShareAllocationObligationsIssuedInConnectionWithIssuanceOfCertainCon"/>
  <xs:element name="DeferredTransactionCostsIncludedWithinAccountsPayableAndAccruedExpenses" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_DeferredTransactionCostsIncludedWithinAccountsPayableAndAccruedExpenses"/>
  <xs:element name="ConvertiblePreferredUnitsIssuedInExchangeForSubscriptionReceivable" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_ConvertiblePreferredUnitsIssuedInExchangeForSubscriptionReceivable"/>
  <xs:element name="ReverseRecapitalizationDisclosureTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_ReverseRecapitalizationDisclosureTextBlock"/>
  <xs:element name="NonTradeAccountsReceivableAndPayableTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_NonTradeAccountsReceivableAndPayableTextBlock"/>
  <xs:element name="NonConsolidatedVariableInterestEntitiesTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_NonConsolidatedVariableInterestEntitiesTextBlock"/>
  <xs:element name="LiabilitiesPaidByPrincipalShareholdersPolicyTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_LiabilitiesPaidByPrincipalShareholdersPolicyTextBlock"/>
  <xs:element name="LiquidityAndGoingConcernPolicyTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_LiquidityAndGoingConcernPolicyTextBlock"/>
  <xs:element name="EmergingGrowthCompanyPolicyTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_EmergingGrowthCompanyPolicyTextBlock"/>
  <xs:element name="ProvisioForCreditLossesPolicyTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_ProvisioForCreditLossesPolicyTextBlock"/>
  <xs:element name="OtherAssetsPolicyTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_OtherAssetsPolicyTextBlock"/>
  <xs:element name="DefinedSeveranceBenefitsPolicyTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_DefinedSeveranceBenefitsPolicyTextBlock"/>
  <xs:element name="ShareOwnershipOfEMTCommonStockTableTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_ShareOwnershipOfEMTCommonStockTableTextBlock"/>
  <xs:element name="BusinessCombinationNetLiabilitiesAcquiredInMergerTableTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_BusinessCombinationNetLiabilitiesAcquiredInMergerTableTextBlock"/>
  <xs:element name="PropertyPlantAndEquipmentNetPledgedAsCollateralTableTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_PropertyPlantAndEquipmentNetPledgedAsCollateralTableTextBlock"/>
  <xs:element name="ScheduleOfFuturePrincipalPaymentsTableTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_ScheduleOfFuturePrincipalPaymentsTableTextBlock"/>
  <xs:element name="CommitmentsContingenciesAndGuaranteesTableTextBlock" type="dtr:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_CommitmentsContingenciesAndGuaranteesTableTextBlock"/>
  <xs:element name="ReverseRecapitalizationScheduleofShareOwnershipofEMTCommonStockDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="emat_ReverseRecapitalizationScheduleofShareOwnershipofEMTCommonStockDetailsTable"/>
  <xs:element name="ReverseRecapitalizationScheduleofShareOwnershipofEMTCommonStockDetailsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_ReverseRecapitalizationScheduleofShareOwnershipofEMTCommonStockDetailsLineItems"/>
  <xs:element name="RedemptionOfWTMAShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_RedemptionOfWTMAShares"/>
  <xs:element name="WTMARights" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_WTMARights"/>
  <xs:element name="PrivatePlacementRightsAndNewBoard" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_PrivatePlacementRightsAndNewBoard"/>
  <xs:element name="ReverseRecapitalizationScheduleofNetLiabilitiesAcquiredinMergerDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="emat_ReverseRecapitalizationScheduleofNetLiabilitiesAcquiredinMergerDetailsTable"/>
  <xs:element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashNetOfRedemptions" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="emat_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashNetOfRedemptions"/>
  <xs:element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedShortTermDebt" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedShortTermDebt"/>
  <xs:element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedSettlementOfPreexistingRelationship" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="emat_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedSettlementOfPreexistingRelationship"/>
  <xs:element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedReverseRecapitalizationNetTheMerger" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedReverseRecapitalizationNetTheMerger"/>
  <xs:element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncashFinancingReverseRecapitalization" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncashFinancingReverseRecapitalization"/>
  <xs:element name="BusinessCombinationConsiderationTransferredSettlementOfPreexistingRelationship" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_BusinessCombinationConsiderationTransferredSettlementOfPreexistingRelationship"/>
  <xs:element name="AcquisitionsScheduleofPreliminaryAllocationofPurchasePricetoAssetsAcquiredDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="emat_AcquisitionsScheduleofPreliminaryAllocationofPurchasePricetoAssetsAcquiredDetailsTable"/>
  <xs:element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredNontradeAccountsReceivable" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="emat_BusinessCombinationRecognizedIdentifiableAssetsAcquiredNontradeAccountsReceivable"/>
  <xs:element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredNontradeAccountsReceivableRelatedParties" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="emat_BusinessCombinationRecognizedIdentifiableAssetsAcquiredNontradeAccountsReceivableRelatedParties"/>
  <xs:element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayableRelatedParties" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayableRelatedParties"/>
  <xs:element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedShortTermDebtRelatedParties" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedShortTermDebtRelatedParties"/>
  <xs:element name="AcquisitionsScheduleofFinitelivedIntangibleAssetsAmortizedUsingStraightlineMethodDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="emat_AcquisitionsScheduleofFinitelivedIntangibleAssetsAmortizedUsingStraightlineMethodDetailsTable"/>
  <xs:element name="DissentingShareholderAppraisalRightLiabilities" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_DissentingShareholderAppraisalRightLiabilities"/>
  <xs:element name="AccountsPayableTollProcessing" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_AccountsPayableTollProcessing"/>
  <xs:element name="NonTradeAccountsPayable" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_NonTradeAccountsPayable"/>
  <xs:element name="InventoryIndirectMaterials" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="emat_InventoryIndirectMaterials"/>
  <xs:element name="PropertyPlantandEquipmentNetScheduleofPropertyPlantAndEquipmentNetPledgedasCollateralDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="emat_PropertyPlantandEquipmentNetScheduleofPropertyPlantAndEquipmentNetPledgedasCollateralDetailsTable"/>
  <xs:element name="PropertyPlantAndEquipmentNetCarryingValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="emat_PropertyPlantAndEquipmentNetCarryingValue"/>
  <xs:element name="PropertyPlantAndEquipmentPledgedAmount" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="emat_PropertyPlantAndEquipmentPledgedAmount"/>
  <xs:element name="PropertyPlantAndEquipmentCreditorDescription" type="xbrli:stringItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="emat_PropertyPlantAndEquipmentCreditorDescription"/>
  <xs:element name="LessRelatedPartyLoanWithHandaCEO" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_LessRelatedPartyLoanWithHandaCEO"/>
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  <xs:element name="CPUShareAllocationObligationCurrent" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_CPUShareAllocationObligationCurrent"/>
  <xs:element name="FairValueOptionChangesInSettlementsEquityBased" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="emat_FairValueOptionChangesInSettlementsEquityBased"/>
  <xs:element name="DerivativeLiabilityMeasurementsInput" type="xbrli:dateItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_DerivativeLiabilityMeasurementsInput"/>
  <xs:element name="EquityScheduleofConversionRatioforConvertiblePreferredUnitsIssuedDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="emat_EquityScheduleofConversionRatioforConvertiblePreferredUnitsIssuedDetailsTable"/>
  <xs:element name="CommitmentsandContingenciesScheduleofListofPaymentGuaranteesProvidedbyThirdPartiesDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="emat_CommitmentsandContingenciesScheduleofListofPaymentGuaranteesProvidedbyThirdPartiesDetailsTable"/>
  <xs:element name="GuaranteeObligationsType" type="xbrli:stringItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_GuaranteeObligationsType"/>
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  <xs:element name="CommitmentsWithFinancialInstitutionsCreditLine" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_CommitmentsWithFinancialInstitutionsCreditLine"/>
  <xs:element name="CommitmentsWithFinancialInstitutionsUsedAmounts" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_CommitmentsWithFinancialInstitutionsUsedAmounts"/>
  <xs:element name="NetLossPerParticipatingMemberUnitinDollarsPerShare" type="dtr:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_NetLossPerParticipatingMemberUnitinDollarsPerShare"/>
  <xs:element name="AdvanceNoteReceivableRelatedParties" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="emat_AdvanceNoteReceivableRelatedParties"/>
  <xs:element name="DescriptionofOrganizationandBusinessOperationsDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="emat_DescriptionofOrganizationandBusinessOperationsDetailsTable"/>
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  <xs:element name="ReverseRecapitalizationDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="emat_ReverseRecapitalizationDetailsTable"/>
  <xs:element name="NumberOfPublicRights" type="xbrli:integerItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_NumberOfPublicRights"/>
  <xs:element name="NumberOfPublicUnits" type="xbrli:integerItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_NumberOfPublicUnits"/>
  <xs:element name="NumberOfRights" type="xbrli:integerItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_NumberOfRights"/>
  <xs:element name="NumberOfCommonStock" type="xbrli:integerItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_NumberOfCommonStock"/>
  <xs:element name="NumberOfConvertedCommonStock" type="xbrli:integerItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_NumberOfConvertedCommonStock"/>
  <xs:element name="OutstandingUnits" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_OutstandingUnits"/>
  <xs:element name="NontradeAccountsReceivable" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="emat_NontradeAccountsReceivable"/>
  <xs:element name="LoanReceivableAmount" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="emat_LoanReceivableAmount"/>
  <xs:element name="AcquisitionsDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="emat_AcquisitionsDetailsTable"/>
  <xs:element name="AcquisitionTarget" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_AcquisitionTarget"/>
  <xs:element name="AdvanceAgreement" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="emat_AdvanceAgreement"/>
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  <xs:element name="DerivativeLiabilitiesDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="emat_DerivativeLiabilitiesDetailsTable"/>
  <xs:element name="CashObligation" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_CashObligation"/>
  <xs:element name="PercentageOfProRataConvertiblePreferredUnits" type="dtr:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="emat_PercentageOfProRataConvertiblePreferredUnits"/>
  <xs:element name="ConvertiblePreferredUnits" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" id="emat_ConvertiblePreferredUnits"/>
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  <xs:element name="AdditionalConvertiblePreferredUnitAgreements" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" id="emat_AdditionalConvertiblePreferredUnitAgreements"/>
  <xs:element name="IncomeTaxDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="emat_IncomeTaxDetailsTable"/>
  <xs:element name="EquityDetailsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="emat_EquityDetailsTable"/>
  <xs:element name="UnitsIssuedPeriodSharesIssues" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="emat_UnitsIssuedPeriodSharesIssues"/>
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  <xs:element name="PercentageOfAccruedAndUnpaidInterest" type="dtr:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" id="emat_PercentageOfAccruedAndUnpaidInterest"/>
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  <xs:element name="April2024Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_April2024Member"/>
  <xs:element name="April2026Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_April2026Member"/>
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  <xs:element name="August2024Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_August2024Member"/>
  <xs:element name="August2026Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_August2026Member"/>
  <xs:element name="AugustTwoThousandTwentySixMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_AugustTwoThousandTwentySixMember"/>
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  <xs:element name="CPUShareAllocationMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_CPUShareAllocationMember"/>
  <xs:element name="CPUShareAllocationObligationMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_CPUShareAllocationObligationMember"/>
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  <xs:element name="CustomerCMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_CustomerCMember"/>
  <xs:element name="DavidWilcoxMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_DavidWilcoxMember"/>
  <xs:element name="December2024Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_December2024Member"/>
  <xs:element name="December2025Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_December2025Member"/>
  <xs:element name="DecemberTwoThousandTwentyFiveToJuneTwoThousandTwentySixMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_DecemberTwoThousandTwentyFiveToJuneTwoThousandTwentySixMember"/>
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  <xs:element name="EquityClassifiedCPUShareAllocationMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_EquityClassifiedCPUShareAllocationMember"/>
  <xs:element name="EvolutionMetalsLLCKoreaMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_EvolutionMetalsLLCKoreaMember"/>
  <xs:element name="ExportSalesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_ExportSalesMember"/>
  <xs:element name="FacilityLoansMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_FacilityLoansMember"/>
  <xs:element name="February2025Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_February2025Member"/>
  <xs:element name="FebruaryTwoThousandTwentySixToAugustTwoThousandTwentySixMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_FebruaryTwoThousandTwentySixToAugustTwoThousandTwentySixMember"/>
  <xs:element name="FinanceLeaseLiabilitiesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_FinanceLeaseLiabilitiesMember"/>
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  <xs:element name="FivePromissoryNotesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_FivePromissoryNotesMember"/>
  <xs:element name="FourPromissoryNotesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_FourPromissoryNotesMember"/>
  <xs:element name="HanaBankMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_HanaBankMember"/>
  <xs:element name="HanaBankOneMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_HanaBankOneMember"/>
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  <xs:element name="HistoricalEMLLCMemberUnitsVotingMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_HistoricalEMLLCMemberUnitsVotingMember"/>
  <xs:element name="IndividualCashLoanMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_IndividualCashLoanMember"/>
  <xs:element name="IndustrialBankOfKoreaMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_IndustrialBankOfKoreaMember"/>
  <xs:element name="January2025Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_January2025Member"/>
  <xs:element name="JanuaryTwoThousandTwentySixToJulyTwoThousandTwentySixMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_JanuaryTwoThousandTwentySixToJulyTwoThousandTwentySixMember"/>
  <xs:element name="July2024Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_July2024Member"/>
  <xs:element name="JulyInvestmentAgreementDerivativeMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_JulyInvestmentAgreementDerivativeMember"/>
  <xs:element name="June2024Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_June2024Member"/>
  <xs:element name="June2026Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_June2026Member"/>
  <xs:element name="JuneTwoThousandTwentySixOneMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_JuneTwoThousandTwentySixOneMember"/>
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  <xs:element name="KIBOKoreaTechnologyFinanceCorporationMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_KIBOKoreaTechnologyFinanceCorporationMember"/>
  <xs:element name="KMMIMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_KMMIMember"/>
  <xs:element name="KODITKoreaCreditGuaranteeFundMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_KODITKoreaCreditGuaranteeFundMember"/>
  <xs:element name="KOSMEKoreaSMEsAndStartupsAgencyMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_KOSMEKoreaSMEsAndStartupsAgencyMember"/>
  <xs:element name="KSUREKoreaTradeInsuranceCorporationMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_KSUREKoreaTradeInsuranceCorporationMember"/>
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  <xs:element name="KoreanDomesticSalesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_KoreanDomesticSalesMember"/>
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  <xs:element name="March2025Member" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="emat_March2025Member"/>
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</xs:schema>
