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  <xs:element id="hmh_VendorCostsAccrualCurrent" abstract="false" name="VendorCostsAccrualCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hmh_AccrualForEnvironmentalLossContingenciesCurrent" abstract="false" name="AccrualForEnvironmentalLossContingenciesCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hmh_StandardProductWarrantyExpenseReversal" abstract="false" name="StandardProductWarrantyExpenseReversal" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hmh_DrillformMember" abstract="true" name="DrillformMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hmh_ProvisionsNoncurrent" abstract="false" name="ProvisionsNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hmh_TaxReceivableAgreementLiabilityNoncurrent" abstract="false" name="TaxReceivableAgreementLiabilityNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hmh_HMHHoldingB.V.AndSubsidiariesMember" abstract="true" name="HMHHoldingB.V.AndSubsidiariesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hmh_CommonStockConversionRatio" abstract="false" name="CommonStockConversionRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="hmh_CommonStockConvertibleSharesIssuable" abstract="false" name="CommonStockConvertibleSharesIssuable" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="hmh_HMHHoldingInc.Member" abstract="true" name="HMHHoldingInc.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hmh_NoncontrollingInterestsMember" abstract="true" name="NoncontrollingInterestsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hmh_StockIssuedDuringPeriodSharesAcquisition" abstract="false" name="StockIssuedDuringPeriodSharesAcquisition" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="hmh_EquityAttributableToNoncontrollingInterestInterestRollForward" abstract="true" name="EquityAttributableToNoncontrollingInterestInterestRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="hmh_OwnershipPercentage" abstract="false" name="OwnershipPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="hmh_StockIssuedDuringPeriodSharesAcquisitionsPercent" abstract="false" name="StockIssuedDuringPeriodSharesAcquisitionsPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="hmh_StockIssuedDuringPeriodSharesConversionOfConvertibleSecuritiesPercent" abstract="false" name="StockIssuedDuringPeriodSharesConversionOfConvertibleSecuritiesPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="hmh_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriodPercent" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriodPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="hmh_ShareBasedCompensationArrangementByShareBasedPaymentAwardShareReserveAnnualPercentageIncrease" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardShareReserveAnnualPercentageIncrease" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="hmh_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformancePeriod" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformancePeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="hmh_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformancePayoutPercentage" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformancePayoutPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="hmh_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsConvertedAtIPO" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsConvertedAtIPO" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="hmh_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsConvertedAtIPOInPeriod" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsConvertedAtIPOInPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="hmh_EffectiveIncomeTaxRateReconciliationStockIssuanceCostsAmount" abstract="false" name="EffectiveIncomeTaxRateReconciliationStockIssuanceCostsAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hmh_AdjustmentsToAdditionalPaidInCapitalTaxReceivableAgreementLiability" abstract="false" name="AdjustmentsToAdditionalPaidInCapitalTaxReceivableAgreementLiability" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hmh_AdjustmentsToAdditionalPaidInCapitalTaxImpactOfReorganization" abstract="false" name="AdjustmentsToAdditionalPaidInCapitalTaxImpactOfReorganization" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hmh_OtherBakerHugesCompaniesMember" abstract="true" name="OtherBakerHugesCompaniesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hmh_OtherAkastorCompaniesMember" abstract="true" name="OtherAkastorCompaniesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hmh_TanajibHoldingCompanyMember" abstract="true" name="TanajibHoldingCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="hmh_NumberOfReportableSegmentsNotDisclosedFlag" abstract="false" name="NumberOfReportableSegmentsNotDisclosedFlag" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="hmh_OperatingIncomeLossAdjusted" abstract="false" name="OperatingIncomeLossAdjusted" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="hmh_SharesIssuedInCurrentPeriodExcludedFromCalculationOfBasisAndDilutedEarningsPerShareInPriorPeriod" abstract="false" name="SharesIssuedInCurrentPeriodExcludedFromCalculationOfBasisAndDilutedEarningsPerShareInPriorPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
</xs:schema>
