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  <xsd:element id="wwr_MaximumFinancingFromCommonStock" name="MaximumFinancingFromCommonStock" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="wwr_NonCashLeaseExpense" name="NonCashLeaseExpense" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="wwr_AtmOfferingMember" name="AtmOfferingMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="wwr_StockPurchaseAgreementRemainingSalesCapacity" name="StockPurchaseAgreementRemainingSalesCapacity" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="wwr_SharesAvailableForFutureIssuanceValue" name="SharesAvailableForFutureIssuanceValue" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <xsd:element name="InducementPlanMember" id="wwr_InducementPlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OperatingLeaseLiabilityLeaseNotYetCommenced" id="wwr_OperatingLeaseLiabilityLeaseNotYetCommenced" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="TotalSupplementalCashFlowInformation" id="wwr_TotalSupplementalCashFlowInformation" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="AccruedCapitalExpenditures" id="wwr_AccruedCapitalExpenditures" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="AtmOfferingAgreementAndStockPurchaseAgreementMember" id="wwr_AtmOfferingAgreementAndStockPurchaseAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AtmSalesAgreementWithH.c.WainwrightMember" id="wwr_AtmSalesAgreementWithH.c.WainwrightMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ExchangeShareCapRate" id="wwr_ExchangeShareCapRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ContractConditionsOwnershipLimitPercentage" id="wwr_ContractConditionsOwnershipLimitPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ConsiderationForCommitmentToPurchaseCommonStock" id="wwr_ConsiderationForCommitmentToPurchaseCommonStock" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="AdditionalConsiderationForCommitmentToPurchaseCommonStock" id="wwr_AdditionalConsiderationForCommitmentToPurchaseCommonStock" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="BatteryGradeGraphiteBusinessSegmentMember" id="wwr_BatteryGradeGraphiteBusinessSegmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CorporateAndReconcilingItemsMember" id="wwr_CorporateAndReconcilingItemsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SharePurchaseAgreementShareLockUpPeriod" id="wwr_SharePurchaseAgreementShareLockUpPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="Seriesa1ConvertibleNoteMember" id="wwr_Seriesa1ConvertibleNoteMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DebtInstrumentThresholdNumberOfWrittenNoticeForEarlyPrepayment" id="wwr_DebtInstrumentThresholdNumberOfWrittenNoticeForEarlyPrepayment" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DebtInstrumentThresholdHoldingPercentageMandatingStockholderApproval" id="wwr_DebtInstrumentThresholdHoldingPercentageMandatingStockholderApproval" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="SeriesB1ConvertibleNoteMember" id="wwr_SeriesB1ConvertibleNoteMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfConversionOccursOnInstallmentAmountMember" id="wwr_IfConversionOccursOnInstallmentAmountMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DebtInstrumentThresholdCapOnHoldingPercentagePostConversion" id="wwr_DebtInstrumentThresholdCapOnHoldingPercentagePostConversion" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="DebtInstrumentInterestRateInEventOfDefault" id="wwr_DebtInstrumentInterestRateInEventOfDefault" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="DebtInstrumentFinancialCovenantMinimumCashBalance" id="wwr_DebtInstrumentFinancialCovenantMinimumCashBalance" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DebtInstrumentThresholdVolumeWeightedAveragePricePercentageForCalculatingConversionPrice" id="wwr_DebtInstrumentThresholdVolumeWeightedAveragePricePercentageForCalculatingConversionPrice" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DebtInstrumentNumberOfConsecutiveTradingDaysConsideredForVolumeWeightedAveragePriceInCalculatingConversionPrice" id="wwr_DebtInstrumentNumberOfConsecutiveTradingDaysConsideredForVolumeWeightedAveragePriceInCalculatingConversionPrice" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ThresholdHoldingPercentageMandatingStockholderApprovalForIssuanceOfShares" id="wwr_ThresholdHoldingPercentageMandatingStockholderApprovalForIssuanceOfShares" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DebtInstrumentPrincipalAmountOutstanding" id="wwr_DebtInstrumentPrincipalAmountOutstanding" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="LiquidityAbstract" id="wwr_LiquidityAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LiquidityTextBlock" id="wwr_LiquidityTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="LiquidityTable" id="wwr_LiquidityTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LiquidityLineItems" id="wwr_LiquidityLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="GainLossOnDebtConversionAndChangeInFairValue" id="wwr_GainLossOnDebtConversionAndChangeInFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="CommonStockIssuedForConvertibleNotes" id="wwr_CommonStockIssuedForConvertibleNotes" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="LeaseLiabilityCurrent" id="wwr_LeaseLiabilityCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="PagliaraMember" id="wwr_PagliaraMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AndersonMember" id="wwr_AndersonMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DeferredContractCostsWriteoff" id="wwr_DeferredContractCostsWriteoff" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
</xsd:schema>
