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<!-- Creation Date: 2026-09-25T20:35:25.6550+00:00 -->
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    <link:calculationArc xlink:type="arc" order="2.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CurrentAssets" xlink:to="ifrs-full_CurrentPrepaidExpenses" />
    <link:calculationArc xlink:type="arc" order="0.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_NoncurrentAssets" xlink:to="ifrs-full_NoncurrentRestrictedCashAndCashEquivalents" />
    <link:calculationArc xlink:type="arc" order="1.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_NoncurrentAssets" xlink:to="ifrs-full_PropertyPlantAndEquipment" />
    <link:calculationArc xlink:type="arc" order="2.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_NoncurrentAssets" xlink:to="ifrs-full_NoncurrentInventories" />
    <link:calculationArc xlink:type="arc" order="3.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_NoncurrentAssets" xlink:to="ifrs-full_IntangibleExplorationAndEvaluationAssets" />
    <link:calculationArc xlink:type="arc" order="4.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_NoncurrentAssets" xlink:to="ifrs-full_InvestmentsInSubsidiariesJointVenturesAndAssociates" />
    <link:calculationArc xlink:type="arc" order="5.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_NoncurrentAssets" xlink:to="ifrs-full_InvestmentsInAssociates" />
    <link:calculationArc xlink:type="arc" order="6.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_NoncurrentAssets" xlink:to="ifrs-full_RightofuseAssets" />
    <link:calculationArc xlink:type="arc" order="1.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_Assets" xlink:to="ifrs-full_CurrentAssets" />
    <link:calculationArc xlink:type="arc" order="3.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_Assets" xlink:to="ifrs-full_NoncurrentAssets" />
    <link:calculationArc xlink:type="arc" order="0.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CurrentLiabilities" xlink:to="ifrs-full_TradeAndOtherCurrentPayables" />
    <link:calculationArc xlink:type="arc" order="1.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CurrentLiabilities" xlink:to="ifrs-full_CurrentProvisions" />
    <link:calculationArc xlink:type="arc" order="2.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CurrentLiabilities" xlink:to="ifrs-full_CurrentLeaseLiabilities" />
    <link:calculationArc xlink:type="arc" order="3.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CurrentLiabilities" xlink:to="ifrs-full_TradeAndOtherCurrentPayablesToRelatedParties" />
    <link:calculationArc xlink:type="arc" order="4.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CurrentLiabilities" xlink:to="ifrs-full_CurrentWarrantLiability" />
    <link:calculationArc xlink:type="arc" order="0.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_NoncurrentLiabilities" xlink:to="ifrs-full_NoncurrentPayablesToRelatedParties" />
    <link:calculationArc xlink:type="arc" order="1.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_NoncurrentLiabilities" xlink:to="crml_OfftakePrepayment" />
    <link:calculationArc xlink:type="arc" order="2.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_NoncurrentLiabilities" xlink:to="ifrs-full_NoncurrentLeaseLiabilities" />
    <link:calculationArc xlink:type="arc" order="6.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_Liabilities" xlink:to="ifrs-full_CurrentLiabilities" />
    <link:calculationArc xlink:type="arc" order="8.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_Liabilities" xlink:to="ifrs-full_NoncurrentLiabilities" />
    <link:calculationArc xlink:type="arc" order="4.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_NetAssetsLiabilities" xlink:to="ifrs-full_Assets" />
    <link:calculationArc xlink:type="arc" order="9.00" weight="-1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_NetAssetsLiabilities" xlink:to="ifrs-full_Liabilities" />
    <link:calculationArc xlink:type="arc" order="0.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_Equity" xlink:to="ifrs-full_IssuedCapital" />
    <link:calculationArc xlink:type="arc" order="1.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_Equity" xlink:to="crml_UnissuedCapital" />
    <link:calculationArc xlink:type="arc" order="2.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_Equity" xlink:to="ifrs-full_OtherReserves" />
    <link:calculationArc xlink:type="arc" order="3.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_Equity" xlink:to="ifrs-full_RetainedEarnings" />
    <link:calculationArc xlink:type="arc" order="4.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_Equity" xlink:to="ifrs-full_NoncontrollingInterests" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://example.com/20260630/role/ExpensesfromContinuingOperationsScheduleofConsultantsandProfessionalServicesDetails" xlink:type="extended" xlink:title="calculationLink">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfessionalFeesExpense" xlink:label="ifrs-full_ProfessionalFeesExpense" />
    <link:loc xlink:type="locator" xlink:href="crml-20260630.xsd#crml_TaxationAdvisors" xlink:label="crml_TaxationAdvisors" />
    <link:loc xlink:type="locator" xlink:href="crml-20260630.xsd#crml_StrategyAdvisors" xlink:label="crml_StrategyAdvisors" />
    <link:loc xlink:type="locator" xlink:href="crml-20260630.xsd#crml_LegalFee" xlink:label="crml_LegalFee" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AuditorsRemuneration" xlink:label="ifrs-full_AuditorsRemuneration" />
    <link:loc xlink:type="locator" xlink:href="crml-20260630.xsd#crml_GovernmentAffairs" xlink:label="crml_GovernmentAffairs" />
    <link:loc xlink:type="locator" xlink:href="crml-20260630.xsd#crml_CorporateAdvisory" xlink:label="crml_CorporateAdvisory" />
    <link:loc xlink:type="locator" xlink:href="crml-20260630.xsd#crml_GeneralExpenses" xlink:label="crml_GeneralExpenses" />
    <link:calculationArc xlink:type="arc" order="0.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_ProfessionalFeesExpense" xlink:to="crml_TaxationAdvisors" />
    <link:calculationArc xlink:type="arc" order="1.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_ProfessionalFeesExpense" xlink:to="crml_StrategyAdvisors" />
    <link:calculationArc xlink:type="arc" order="2.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_ProfessionalFeesExpense" xlink:to="crml_LegalFee" />
    <link:calculationArc xlink:type="arc" order="3.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_ProfessionalFeesExpense" xlink:to="ifrs-full_AuditorsRemuneration" />
    <link:calculationArc xlink:type="arc" order="4.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_ProfessionalFeesExpense" xlink:to="crml_GovernmentAffairs" />
    <link:calculationArc xlink:type="arc" order="5.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_ProfessionalFeesExpense" xlink:to="crml_CorporateAdvisory" />
    <link:calculationArc xlink:type="arc" order="6.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_ProfessionalFeesExpense" xlink:to="crml_GeneralExpenses" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://example.com/20260630/role/ExpensesfromContinuingOperationsScheduleofMergerExpensesDetails" xlink:type="extended" xlink:title="calculationLink">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfitLossFromContinuingOperations" xlink:label="ifrs-full_ProfitLossFromContinuingOperations" />
    <link:loc xlink:type="locator" xlink:href="crml-20260630.xsd#crml_MergerExpense" xlink:label="crml_MergerExpense" />
    <link:calculationArc xlink:type="arc" order="0.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_ProfitLossFromContinuingOperations" xlink:to="crml_MergerExpense" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://example.com/20260630/role/ExpensesfromContinuingOperationsScheduleofListingExpensesDetails" xlink:type="extended" xlink:title="calculationLink">
    <link:loc xlink:type="locator" xlink:href="crml-20260630.xsd#crml_ListingExpenses" xlink:label="crml_ListingExpenses" />
    <link:loc xlink:type="locator" xlink:href="crml-20260630.xsd#crml_IFRS2ListingExpenses" xlink:label="crml_IFRS2ListingExpenses" />
    <link:loc xlink:type="locator" xlink:href="crml-20260630.xsd#crml_SettlementOfLiabilitiesRelatingToTheListingOfTheCompany" xlink:label="crml_SettlementOfLiabilitiesRelatingToTheListingOfTheCompany" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ShareIssueRelatedCost" xlink:label="ifrs-full_ShareIssueRelatedCost" />
    <link:loc xlink:type="locator" xlink:href="crml-20260630.xsd#crml_LossOnExtinguishmentOfLiabilities" xlink:label="crml_LossOnExtinguishmentOfLiabilities" />
    <link:calculationArc xlink:type="arc" order="0.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="crml_ListingExpenses" xlink:to="crml_IFRS2ListingExpenses" />
    <link:calculationArc xlink:type="arc" order="1.00" weight="-1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="crml_ListingExpenses" xlink:to="crml_SettlementOfLiabilitiesRelatingToTheListingOfTheCompany" />
    <link:calculationArc xlink:type="arc" order="2.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="crml_ListingExpenses" xlink:to="ifrs-full_ShareIssueRelatedCost" />
    <link:calculationArc xlink:type="arc" order="3.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="crml_ListingExpenses" xlink:to="crml_LossOnExtinguishmentOfLiabilities" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://example.com/20260630/role/IncomeTaxScheduleofUnrecognisedDeferredTaxAssetsDetails" xlink:type="extended" xlink:title="calculationLink">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DeferredTaxAssets" xlink:label="ifrs-full_DeferredTaxAssets" />
    <link:loc xlink:type="locator" xlink:href="crml-20260630.xsd#crml_DeferredTaxAssetsStartupOrganisationalExpenses" xlink:label="crml_DeferredTaxAssetsStartupOrganisationalExpenses" />
    <link:loc xlink:type="locator" xlink:href="crml-20260630.xsd#crml_DeferredTaxAssetsExplorationCostsDeductedForTaxPurposes" xlink:label="crml_DeferredTaxAssetsExplorationCostsDeductedForTaxPurposes" />
    <link:loc xlink:type="locator" xlink:href="crml-20260630.xsd#crml_PropertyPlantAndEquipmentDeductedForTaxPurposes" xlink:label="crml_PropertyPlantAndEquipmentDeductedForTaxPurposes" />
    <link:loc xlink:type="locator" xlink:href="crml-20260630.xsd#crml_UnrealisedExchangeRatePositions" xlink:label="crml_UnrealisedExchangeRatePositions" />
    <link:loc xlink:type="locator" xlink:href="crml-20260630.xsd#crml_DeferredTaxAssetsCarryForwardTaxLosses" xlink:label="crml_DeferredTaxAssetsCarryForwardTaxLosses" />
    <link:calculationArc xlink:type="arc" order="0.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_DeferredTaxAssets" xlink:to="crml_DeferredTaxAssetsStartupOrganisationalExpenses" />
    <link:calculationArc xlink:type="arc" order="1.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_DeferredTaxAssets" xlink:to="crml_DeferredTaxAssetsExplorationCostsDeductedForTaxPurposes" />
    <link:calculationArc xlink:type="arc" order="2.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_DeferredTaxAssets" xlink:to="crml_PropertyPlantAndEquipmentDeductedForTaxPurposes" />
    <link:calculationArc xlink:type="arc" order="3.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_DeferredTaxAssets" xlink:to="crml_UnrealisedExchangeRatePositions" />
    <link:calculationArc xlink:type="arc" order="4.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_DeferredTaxAssets" xlink:to="crml_DeferredTaxAssetsCarryForwardTaxLosses" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://example.com/20260630/role/OtherReceivablesScheduleofOtherReceivablesDetails" xlink:type="extended" xlink:title="calculationLink">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherCurrentReceivables" xlink:label="ifrs-full_OtherCurrentReceivables" />
    <link:loc xlink:type="locator" xlink:href="crml-20260630.xsd#crml_SecurityDepositValue" xlink:label="crml_SecurityDepositValue" />
    <link:loc xlink:type="locator" xlink:href="crml-20260630.xsd#crml_GSTVATReceivable" xlink:label="crml_GSTVATReceivable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherReceivables" xlink:label="ifrs-full_OtherReceivables" />
    <link:calculationArc xlink:type="arc" order="0.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_OtherCurrentReceivables" xlink:to="crml_SecurityDepositValue" />
    <link:calculationArc xlink:type="arc" order="1.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_OtherCurrentReceivables" xlink:to="crml_GSTVATReceivable" />
    <link:calculationArc xlink:type="arc" order="2.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_OtherCurrentReceivables" xlink:to="ifrs-full_OtherReceivables" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://example.com/20260630/role/PrepaidExpensesScheduleofPrepaidExpensesDetails" xlink:type="extended" xlink:title="calculationLink">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentPrepaidExpenses" xlink:label="ifrs-full_CurrentPrepaidExpenses" />
    <link:loc xlink:type="locator" xlink:href="crml-20260630.xsd#crml_PrepaidDirectorsAndOfficersInsurance" xlink:label="crml_PrepaidDirectorsAndOfficersInsurance" />
    <link:loc xlink:type="locator" xlink:href="crml-20260630.xsd#crml_OtherPrepaidExpenses" xlink:label="crml_OtherPrepaidExpenses" />
    <link:calculationArc xlink:type="arc" order="0.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CurrentPrepaidExpenses" xlink:to="crml_PrepaidDirectorsAndOfficersInsurance" />
    <link:calculationArc xlink:type="arc" order="1.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CurrentPrepaidExpenses" xlink:to="crml_OtherPrepaidExpenses" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://example.com/20260630/role/RestrictedCashandOtherDepositsScheduleofRestrictedCashandOtherDepositsDetails" xlink:type="extended" xlink:title="calculationLink">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentRestrictedCashAndCashEquivalents" xlink:label="ifrs-full_NoncurrentRestrictedCashAndCashEquivalents" />
    <link:loc xlink:type="locator" xlink:href="crml-20260630.xsd#crml_FundsHeldOnDepositAgainstOfftakePrepayment" xlink:label="crml_FundsHeldOnDepositAgainstOfftakePrepayment" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ShorttermDepositsClassifiedAsCashEquivalents" xlink:label="ifrs-full_ShorttermDepositsClassifiedAsCashEquivalents" />
    <link:loc xlink:type="locator" xlink:href="crml-20260630.xsd#crml_FundsHeldAsSecurityAgainstCreditCardFacility" xlink:label="crml_FundsHeldAsSecurityAgainstCreditCardFacility" />
    <link:calculationArc xlink:type="arc" order="0.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_NoncurrentRestrictedCashAndCashEquivalents" xlink:to="crml_FundsHeldOnDepositAgainstOfftakePrepayment" />
    <link:calculationArc xlink:type="arc" order="1.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_NoncurrentRestrictedCashAndCashEquivalents" xlink:to="ifrs-full_ShorttermDepositsClassifiedAsCashEquivalents" />
    <link:calculationArc xlink:type="arc" order="2.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_NoncurrentRestrictedCashAndCashEquivalents" xlink:to="crml_FundsHeldAsSecurityAgainstCreditCardFacility" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://example.com/20260630/role/RightofUseAssetScheduleofRightofUseAssetDetails" xlink:type="extended" xlink:title="calculationLink">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RightofuseAssets" xlink:label="ifrs-full_RightofuseAssets" />
    <link:loc xlink:type="locator" xlink:href="crml-20260630.xsd#crml_RightofUseAssetsCost" xlink:label="crml_RightofUseAssetsCost" />
    <link:loc xlink:type="locator" xlink:href="crml-20260630.xsd#crml_AccumulatedAmortisationRightofUseAssets" xlink:label="crml_AccumulatedAmortisationRightofUseAssets" />
    <link:calculationArc xlink:type="arc" order="0.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_RightofuseAssets" xlink:to="crml_RightofUseAssetsCost" />
    <link:calculationArc xlink:type="arc" order="1.00" weight="-1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_RightofuseAssets" xlink:to="crml_AccumulatedAmortisationRightofUseAssets" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://example.com/20260630/role/TradeandOtherPayablesScheduleofTradeandOtherPayablesDetails" xlink:type="extended" xlink:title="calculationLink">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherCurrentPayables" xlink:label="ifrs-full_TradeAndOtherCurrentPayables" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherPayablesToTradeSuppliers" xlink:label="ifrs-full_TradeAndOtherPayablesToTradeSuppliers" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherPayables" xlink:label="ifrs-full_TradeAndOtherPayables" />
    <link:loc xlink:type="locator" xlink:href="crml-20260630.xsd#crml_OtherPayable" xlink:label="crml_OtherPayable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Accruals" xlink:label="ifrs-full_Accruals" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ExciseTaxPayables" xlink:label="ifrs-full_ExciseTaxPayables" />
    <link:calculationArc xlink:type="arc" order="0.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_TradeAndOtherCurrentPayables" xlink:to="ifrs-full_TradeAndOtherPayablesToTradeSuppliers" />
    <link:calculationArc xlink:type="arc" order="1.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_TradeAndOtherCurrentPayables" xlink:to="ifrs-full_TradeAndOtherPayables" />
    <link:calculationArc xlink:type="arc" order="2.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_TradeAndOtherCurrentPayables" xlink:to="crml_OtherPayable" />
    <link:calculationArc xlink:type="arc" order="3.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_TradeAndOtherCurrentPayables" xlink:to="ifrs-full_Accruals" />
    <link:calculationArc xlink:type="arc" order="4.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_TradeAndOtherCurrentPayables" xlink:to="ifrs-full_ExciseTaxPayables" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://example.com/20260630/role/UnissuedCapitalScheduleofUnissuedCapitalDetails" xlink:type="extended" xlink:title="calculationLink">
    <link:loc xlink:type="locator" xlink:href="crml-20260630.xsd#crml_UnissuedCapital" xlink:label="crml_UnissuedCapital" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ContractualCapitalCommitments" xlink:label="ifrs-full_ContractualCapitalCommitments" />
    <link:calculationArc xlink:type="arc" order="0.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="crml_UnissuedCapital" xlink:to="ifrs-full_ContractualCapitalCommitments" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://example.com/20260630/role/ReservesScheduleofReservesDetails" xlink:type="extended" xlink:title="calculationLink">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherReserves" xlink:label="ifrs-full_OtherReserves" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReserveOfExchangeDifferencesOnTranslation" xlink:label="ifrs-full_ReserveOfExchangeDifferencesOnTranslation" />
    <link:loc xlink:type="locator" xlink:href="crml-20260630.xsd#crml_ReserveOfNASDAQListingReserves" xlink:label="crml_ReserveOfNASDAQListingReserves" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReserveOfSharebasedPayments" xlink:label="ifrs-full_ReserveOfSharebasedPayments" />
    <link:calculationArc xlink:type="arc" order="0.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_OtherReserves" xlink:to="ifrs-full_ReserveOfExchangeDifferencesOnTranslation" />
    <link:calculationArc xlink:type="arc" order="1.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_OtherReserves" xlink:to="crml_ReserveOfNASDAQListingReserves" />
    <link:calculationArc xlink:type="arc" order="2.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_OtherReserves" xlink:to="ifrs-full_ReserveOfSharebasedPayments" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://example.com/20260630/role/RelatedPartyDisclosuresScheduleofRemunerationofDirectorsandKeyManagementPersonnelDetails" xlink:type="extended" xlink:title="calculationLink">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_KeyManagementPersonnelCompensation" xlink:label="ifrs-full_KeyManagementPersonnelCompensation" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_KeyManagementPersonnelCompensationShorttermEmployeeBenefits" xlink:label="ifrs-full_KeyManagementPersonnelCompensationShorttermEmployeeBenefits" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_KeyManagementPersonnelCompensationPostemploymentBenefits" xlink:label="ifrs-full_KeyManagementPersonnelCompensationPostemploymentBenefits" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment" xlink:label="ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_KeyManagementPersonnelCompensationOtherLongtermBenefits" xlink:label="ifrs-full_KeyManagementPersonnelCompensationOtherLongtermBenefits" />
    <link:calculationArc xlink:type="arc" order="0.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_KeyManagementPersonnelCompensation" xlink:to="ifrs-full_KeyManagementPersonnelCompensationShorttermEmployeeBenefits" />
    <link:calculationArc xlink:type="arc" order="1.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_KeyManagementPersonnelCompensation" xlink:to="ifrs-full_KeyManagementPersonnelCompensationPostemploymentBenefits" />
    <link:calculationArc xlink:type="arc" order="2.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_KeyManagementPersonnelCompensation" xlink:to="ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment" />
    <link:calculationArc xlink:type="arc" order="3.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_KeyManagementPersonnelCompensation" xlink:to="ifrs-full_KeyManagementPersonnelCompensationOtherLongtermBenefits" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://example.com/20260630/role/FinancialInstrumentsScheduleofContractualMaturitiesofFinancialLiabilitiesDetails" xlink:type="extended" xlink:title="calculationLink">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialLiabilities" xlink:label="ifrs-full_FinancialLiabilities" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherCurrentPayables" xlink:label="ifrs-full_TradeAndOtherCurrentPayables" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherCurrentPayablesToRelatedParties" xlink:label="ifrs-full_TradeAndOtherCurrentPayablesToRelatedParties" />
    <link:calculationArc xlink:type="arc" order="0.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_FinancialLiabilities" xlink:to="ifrs-full_TradeAndOtherCurrentPayables" />
    <link:calculationArc xlink:type="arc" order="1.00" weight="1" use="optional" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_FinancialLiabilities" xlink:to="ifrs-full_TradeAndOtherCurrentPayablesToRelatedParties" />
  </link:calculationLink>
</link:linkbase>
