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<!-- Generated by CompSci Transform (tm) - http://www.compsciresources.com -->    
<!-- Created: Thu Apr 02 09:26:22 UTC 2026 -->  
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  <roleRef xlink:type="simple" xlink:href="namm-20251231.xsd#namm_r_ConsolidatedBalanceSheet" roleURI="http://www.namibminerals.com/role/ConsolidatedBalanceSheet"/>     
  <roleRef xlink:type="simple" xlink:href="namm-20251231.xsd#namm_r_ConsolidatedCashFlow" roleURI="http://www.namibminerals.com/role/ConsolidatedCashFlow"/>  
  <roleRef xlink:type="simple" xlink:href="namm-20251231.xsd#namm_r_ScheduleofFairValueoftheEquityInterestsTable" roleURI="http://www.namibminerals.com/role/ScheduleofFairValueoftheEquityInterestsTable"/>     
  <roleRef xlink:type="simple" xlink:href="namm-20251231.xsd#namm_r_ScheduleofPayrollCostsoftheEmployeesTable" roleURI="http://www.namibminerals.com/role/ScheduleofPayrollCostsoftheEmployeesTable"/>    
  <roleRef xlink:type="simple" xlink:href="namm-20251231.xsd#namm_r_ScheduleofOtherIncomeTable" roleURI="http://www.namibminerals.com/role/ScheduleofOtherIncomeTable"/>    
  <roleRef xlink:type="simple" xlink:href="namm-20251231.xsd#namm_r_ScheduleofFinanceCostTable" roleURI="http://www.namibminerals.com/role/ScheduleofFinanceCostTable"/>    
  <roleRef xlink:type="simple" xlink:href="namm-20251231.xsd#namm_r_ScheduleofTaxationExpenseTable" roleURI="http://www.namibminerals.com/role/ScheduleofTaxationExpenseTable"/>  
  <roleRef xlink:type="simple" xlink:href="namm-20251231.xsd#namm_r_ScheduleofReconciliationofTaxRateTable" roleURI="http://www.namibminerals.com/role/ScheduleofReconciliationofTaxRateTable"/>   
  <roleRef xlink:type="simple" xlink:href="namm-20251231.xsd#namm_r_ScheduleofReconciliationofCurrentTaxLiabilitiesTable" roleURI="http://www.namibminerals.com/role/ScheduleofReconciliationofCurrentTaxLiabilitiesTable"/> 
  <roleRef xlink:type="simple" xlink:href="namm-20251231.xsd#namm_r_ScheduleofDeferredTaxLabilityTable" roleURI="http://www.namibminerals.com/role/ScheduleofDeferredTaxLabilityTable"/>     
  <roleRef xlink:type="simple" xlink:href="namm-20251231.xsd#namm_r_ScheduleofInventoriesTable" roleURI="http://www.namibminerals.com/role/ScheduleofInventoriesTable"/>    
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  <roleRef xlink:type="simple" xlink:href="namm-20251231.xsd#namm_r_ScheduleofCashandCashEquivalentsTable" roleURI="http://www.namibminerals.com/role/ScheduleofCashandCashEquivalentsTable"/> 
  <roleRef xlink:type="simple" xlink:href="namm-20251231.xsd#namm_r_ScheduleofSharePremiumandOtherReservesTable" roleURI="http://www.namibminerals.com/role/ScheduleofSharePremiumandOtherReservesTable"/>   
  <roleRef xlink:type="simple" xlink:href="namm-20251231.xsd#namm_r_ScheduleofFinancialInstrumentsRisksArisesandtheRelatedBalancesTable" roleURI="http://www.namibminerals.com/role/ScheduleofFinancialInstrumentsRisksArisesandtheRelatedBalancesTable"/> 
  <roleRef xlink:type="simple" xlink:href="namm-20251231.xsd#namm_r_ScheduleofConsolidatedMonetaryAssetsLiabilitiesGroupofZIGTable" roleURI="http://www.namibminerals.com/role/ScheduleofConsolidatedMonetaryAssetsLiabilitiesGroupofZIGTable"/> 
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  <roleRef xlink:type="simple" xlink:href="namm-20251231.xsd#namm_r_ScheduleofCompensationtoKeyManagementPersonnelTable" roleURI="http://www.namibminerals.com/role/ScheduleofCompensationtoKeyManagementPersonnelTable"/>    
  <roleRef xlink:type="simple" xlink:href="namm-20251231.xsd#namm_r_ScheduleofAccountingPoliciesoftheReportableSegmentsTable" roleURI="http://www.namibminerals.com/role/ScheduleofAccountingPoliciesoftheReportableSegmentsTable"/>    
  <roleRef xlink:type="simple" xlink:href="namm-20251231.xsd#namm_r_ScheduleoftheTotalShareBasedPaymentExpenseTable" roleURI="http://www.namibminerals.com/role/ScheduleoftheTotalShareBasedPaymentExpenseTable"/> 
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    <loc xlink:type="locator" xlink:label="ifrs-full_AdministrativeExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdministrativeExpense"/>    
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    <loc xlink:type="locator" xlink:label="namm_ChangeInFairValueOfLiability" xlink:href="namm-20251231.xsd#namm_ChangeInFairValueOfLiability"/>     
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_OperatingProfitLossOperating" xlink:to="namm_ChangeInFairValueOfLiability" order="6" weight="-1"/>  
    <loc xlink:type="locator" xlink:label="namm_ListingExpense" xlink:href="namm-20251231.xsd#namm_ListingExpense"/>  
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_OperatingProfitLossOperating" xlink:to="namm_ListingExpense" order="7" weight="-1"/>   
    <loc xlink:type="locator" xlink:label="namm_AllowanceForCreditLosses" xlink:href="namm-20251231.xsd#namm_AllowanceForCreditLosses"/>  
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_OperatingProfitLossOperating" xlink:to="namm_AllowanceForCreditLosses" order="8" weight="-1"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_ImpairmentLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ImpairmentLoss"/>     
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_OperatingProfitLossOperating" xlink:to="ifrs-full_ImpairmentLoss" order="9" weight="-1"/>   
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    <loc xlink:type="locator" xlink:label="namm_RelatedPartyCreditLoss" xlink:href="namm-20251231.xsd#namm_RelatedPartyCreditLoss"/>   
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_ProfitLossBeforeTax" xlink:to="namm_RelatedPartyCreditLoss" order="2" weight="1"/> 
    <loc xlink:type="locator" xlink:label="ifrs-full_RevenueFromInterest" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RevenueFromInterest"/>     
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    <loc xlink:type="locator" xlink:label="ifrs-full_FinanceCosts" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinanceCosts"/> 
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    <loc xlink:type="locator" xlink:label="namm_DisposalOfInvestment" xlink:href="namm-20251231.xsd#namm_DisposalOfInvestment"/>    
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    <loc xlink:type="locator" xlink:label="namm_FinancialGuaranteeRemeasurement" xlink:href="namm-20251231.xsd#namm_FinancialGuaranteeRemeasurement"/> 
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    <loc xlink:type="locator" xlink:label="ifrs-full_ComprehensiveIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComprehensiveIncome"/>     
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    <loc xlink:type="locator" xlink:label="namm_ExciseDutyIndemnificationCurrent" xlink:href="namm-20251231.xsd#namm_ExciseDutyIndemnificationCurrent"/>   
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_CurrentAssets" xlink:to="namm_ExciseDutyIndemnificationCurrent" order="5" weight="1"/>     
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentPrepayments" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentPrepayments"/>   
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    <loc xlink:type="locator" xlink:label="ifrs-full_NoncurrentAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentAssets"/>    
    <loc xlink:type="locator" xlink:label="ifrs-full_PropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PropertyPlantAndEquipment"/>  
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    <loc xlink:type="locator" xlink:label="ifrs-full_IntangibleExplorationAndEvaluationAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IntangibleExplorationAndEvaluationAssets"/>  
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    <loc xlink:type="locator" xlink:label="namm_StaffLoansReceivables" xlink:href="namm-20251231.xsd#namm_StaffLoansReceivables"/> 
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_NoncurrentAssets" xlink:to="namm_StaffLoansReceivables" order="4" weight="1"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_Assets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Assets"/>    
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    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="ifrs-full_Assets" xlink:to="ifrs-full_NoncurrentAssets" order="2" weight="1"/>  
    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentLiabilities"/>   
    <loc xlink:type="locator" xlink:label="ifrs-full_TradeAndOtherCurrentPayables" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeAndOtherCurrentPayables"/>   
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    <loc xlink:type="locator" xlink:label="namm_DeferredTaxLiabilitiesProvisionForRehabilitationCost" xlink:href="namm-20251231.xsd#namm_DeferredTaxLiabilitiesProvisionForRehabilitationCost"/>   
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    <loc xlink:type="locator" xlink:label="namm_CurrentStaffLoansReceivables" xlink:href="namm-20251231.xsd#namm_CurrentStaffLoansReceivables"/>     
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    <loc xlink:type="locator" xlink:label="ifrs-full_CurrentPayablesOnSocialSecurityAndTaxesOtherThanIncomeTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentPayablesOnSocialSecurityAndTaxesOtherThanIncomeTax"/> 
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