<?xml version="1.0" encoding="US-ASCII" standalone="no"?>
    <!-- Field: Doc-Info; Name: Generator; Value: GoFiler Complete; Version: 6.6a -->
    <!-- Field: Doc-Info; Name: VendorURI; Value: https://www.novaworks.com -->
    <!-- Field: Doc-Info; Name: Status; Value: 0x00000000 -->
<link:linkbase xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrli="http://www.xbrl.org/2003/instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#Cover" roleURI="http://silverbowmining.com/role/Cover" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#UnauditedCondensedInterimConsolidatedBalanceSheets" roleURI="http://silverbowmining.com/role/UnauditedCondensedInterimConsolidatedBalanceSheets" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#UnauditedCondensedInterimConsolidatedBalanceSheetsParenthetical" roleURI="http://silverbowmining.com/role/UnauditedCondensedInterimConsolidatedBalanceSheetsParenthetical" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#UnauditedCondensedInterimConsolidatedStatementsOfOperations" roleURI="http://silverbowmining.com/role/UnauditedCondensedInterimConsolidatedStatementsOfOperations" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#UnauditedCondensedInterimConsolidatedStatementsOfOperationsParenthetical" roleURI="http://silverbowmining.com/role/UnauditedCondensedInterimConsolidatedStatementsOfOperationsParenthetical" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#UnauditedCondensedInterimConsolidatedStatementsOfChangesInStockholdersEquity" roleURI="http://silverbowmining.com/role/UnauditedCondensedInterimConsolidatedStatementsOfChangesInStockholdersEquity" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#UnauditedCondensedInterimConsolidatedStatementsOfCashFlows" roleURI="http://silverbowmining.com/role/UnauditedCondensedInterimConsolidatedStatementsOfCashFlows" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#NatureOfOperations" roleURI="http://silverbowmining.com/role/NatureOfOperations" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#BasisOfPresentationAndUseOfEstimates" roleURI="http://silverbowmining.com/role/BasisOfPresentationAndUseOfEstimates" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#SignificantAccountingPoliciesAndRecentlyIssuedAccountingStandards" roleURI="http://silverbowmining.com/role/SignificantAccountingPoliciesAndRecentlyIssuedAccountingStandards" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#FinancialInstruments" roleURI="http://silverbowmining.com/role/FinancialInstruments" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#PropertyEquipmentNet" roleURI="http://silverbowmining.com/role/PropertyEquipmentNet" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#MineralRightsAndProperties" roleURI="http://silverbowmining.com/role/MineralRightsAndProperties" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#PendingAcquisitionOfAssetsOfMontanaTunnelsMiningInc." roleURI="http://silverbowmining.com/role/PendingAcquisitionOfAssetsOfMontanaTunnelsMiningInc." />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#EnvironmentalRemediationReserveAndReclamationDeposit" roleURI="http://silverbowmining.com/role/EnvironmentalRemediationReserveAndReclamationDeposit" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#CommitmentsAndContingencies" roleURI="http://silverbowmining.com/role/CommitmentsAndContingencies" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#StockholdersEquity" roleURI="http://silverbowmining.com/role/StockholdersEquity" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#Stock-basedCompensation" roleURI="http://silverbowmining.com/role/Stock-basedCompensation" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#OperatingLeases" roleURI="http://silverbowmining.com/role/OperatingLeases" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#NetLossPerShare" roleURI="http://silverbowmining.com/role/NetLossPerShare" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#SegmentInformation" roleURI="http://silverbowmining.com/role/SegmentInformation" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#SubsequentEvents" roleURI="http://silverbowmining.com/role/SubsequentEvents" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#BasisOfPresentationAndUseOfEstimatesTables" roleURI="http://silverbowmining.com/role/BasisOfPresentationAndUseOfEstimatesTables" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#PropertyEquipmentNetTables" roleURI="http://silverbowmining.com/role/PropertyEquipmentNetTables" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#MineralRightsAndPropertiesTables" roleURI="http://silverbowmining.com/role/MineralRightsAndPropertiesTables" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#EnvironmentalRemediationReserveAndReclamationDepositTables" roleURI="http://silverbowmining.com/role/EnvironmentalRemediationReserveAndReclamationDepositTables" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#Stock-basedCompensationTables" roleURI="http://silverbowmining.com/role/Stock-basedCompensationTables" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#OperatingLeasesTables" roleURI="http://silverbowmining.com/role/OperatingLeasesTables" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#ScheduleOfWhollyOwnedSubsidiariesDetails" roleURI="http://silverbowmining.com/role/ScheduleOfWhollyOwnedSubsidiariesDetails" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#BasisOfPresentationAndUseOfEstimatesDetailsNarrative" roleURI="http://silverbowmining.com/role/BasisOfPresentationAndUseOfEstimatesDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#ScheduleOfPropertyAndEquipmentDetails" roleURI="http://silverbowmining.com/role/ScheduleOfPropertyAndEquipmentDetails" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#PropertyEquipmentNetDetailsNarrative" roleURI="http://silverbowmining.com/role/PropertyEquipmentNetDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#ScheduleMineralRightsAndPropertiesDetails" roleURI="http://silverbowmining.com/role/ScheduleMineralRightsAndPropertiesDetails" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#MineralRightsAndPropertiesDetailsNarrative" roleURI="http://silverbowmining.com/role/MineralRightsAndPropertiesDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#PendingAcquisitionOfAssetsOfMontanaTunnelsMiningInc.DetailsNarrative" roleURI="http://silverbowmining.com/role/PendingAcquisitionOfAssetsOfMontanaTunnelsMiningInc.DetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#ScheduleOfRemediationReserveAndReclamationBondBalancesDetails" roleURI="http://silverbowmining.com/role/ScheduleOfRemediationReserveAndReclamationBondBalancesDetails" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#CommitmentsAndContingenciesDetailsNarrative" roleURI="http://silverbowmining.com/role/CommitmentsAndContingenciesDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#StockholdersEquityDetailsNarrative" roleURI="http://silverbowmining.com/role/StockholdersEquityDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#ScheduleOfTotalCompensationExpenseRecognizedDetails" roleURI="http://silverbowmining.com/role/ScheduleOfTotalCompensationExpenseRecognizedDetails" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#ScheduleOfStockOptionsDetails" roleURI="http://silverbowmining.com/role/ScheduleOfStockOptionsDetails" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#ScheduleOfActivityRelatedToRestrictedShareUnitsDetails" roleURI="http://silverbowmining.com/role/ScheduleOfActivityRelatedToRestrictedShareUnitsDetails" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#ScheduleOfWarrantActivityRelatedToFinancingEventsDetails" roleURI="http://silverbowmining.com/role/ScheduleOfWarrantActivityRelatedToFinancingEventsDetails" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#Stock-basedCompensationDetailsNarrative" roleURI="http://silverbowmining.com/role/Stock-basedCompensationDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#ScheduleOfMaturityAnalysisOfFutureMinimumLeasePaymentsForOperatingLeasesDetails" roleURI="http://silverbowmining.com/role/ScheduleOfMaturityAnalysisOfFutureMinimumLeasePaymentsForOperatingLeasesDetails" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#OperatingLeasesDetailsNarrative" roleURI="http://silverbowmining.com/role/OperatingLeasesDetailsNarrative" />
    <link:roleRef xlink:type="simple" xlink:href="sbmt-20260930.xsd#SubsequentEventsDetailsNarrative" roleURI="http://silverbowmining.com/role/SubsequentEventsDetailsNarrative" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/Cover" xlink:title="00000001 - Document - Cover" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/UnauditedCondensedInterimConsolidatedBalanceSheets" xlink:title="00000002 - Statement - Unaudited Condensed Interim Consolidated Balance Sheets">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaapAssetsCurrent" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaapCashAndCashEquivalentsAtCarryingValue" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssetsCurrent" xlink:to="loc_us-gaapCashAndCashEquivalentsAtCarryingValue" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PrepaidExpenseCurrent" xlink:label="loc_us-gaapPrepaidExpenseCurrent" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssetsCurrent" xlink:to="loc_us-gaapPrepaidExpenseCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAssetsCurrent" xlink:label="loc_us-gaapOtherAssetsCurrent" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssetsCurrent" xlink:to="loc_us-gaapOtherAssetsCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Assets" xlink:label="loc_us-gaapAssets" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssets" xlink:to="loc_us-gaapAssetsCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedCash" xlink:label="loc_us-gaapRestrictedCash" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssets" xlink:to="loc_us-gaapRestrictedCash" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseRightOfUseAsset" xlink:label="loc_us-gaapOperatingLeaseRightOfUseAsset" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssets" xlink:to="loc_us-gaapOperatingLeaseRightOfUseAsset" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaapPropertyPlantAndEquipmentNet" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssets" xlink:to="loc_us-gaapPropertyPlantAndEquipmentNet" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DepositsAssetsNoncurrent" xlink:label="loc_us-gaapDepositsAssetsNoncurrent" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssets" xlink:to="loc_us-gaapDepositsAssetsNoncurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MineralPropertiesNet" xlink:label="loc_us-gaapMineralPropertiesNet" />
      <link:calculationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssets" xlink:to="loc_us-gaapMineralPropertiesNet" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaapLiabilitiesCurrent" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent" xlink:label="loc_us-gaapAccountsPayableAndAccruedLiabilitiesCurrent" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_us-gaapAccountsPayableAndAccruedLiabilitiesCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiabilityCurrent" xlink:label="loc_us-gaapOperatingLeaseLiabilityCurrent" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_us-gaapOperatingLeaseLiabilityCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermBorrowings" xlink:label="loc_us-gaapShortTermBorrowings" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_us-gaapShortTermBorrowings" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaapLiabilities" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilities" xlink:to="loc_us-gaapLiabilitiesCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="sbmt-20260930.xsd#sbmt_EnvironmentalRemediationReserve" xlink:label="loc_sbmtEnvironmentalRemediationReserve" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilities" xlink:to="loc_sbmtEnvironmentalRemediationReserve" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:label="loc_us-gaapOperatingLeaseLiabilityNoncurrent" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilities" xlink:to="loc_us-gaapOperatingLeaseLiabilityNoncurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebt" xlink:label="loc_us-gaapLongTermDebt" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilities" xlink:to="loc_us-gaapLongTermDebt" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaapStockholdersEquity" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockValue" xlink:label="loc_us-gaapCommonStockValue" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapStockholdersEquity" xlink:to="loc_us-gaapCommonStockValue" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="loc_us-gaapAdditionalPaidInCapital" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapStockholdersEquity" xlink:to="loc_us-gaapAdditionalPaidInCapital" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaapRetainedEarningsAccumulatedDeficit" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapStockholdersEquity" xlink:to="loc_us-gaapRetainedEarningsAccumulatedDeficit" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaapLiabilitiesAndStockholdersEquity" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesAndStockholdersEquity" xlink:to="loc_us-gaapLiabilities" xlink:type="arc" weight="1" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesAndStockholdersEquity" xlink:to="loc_us-gaapStockholdersEquity" xlink:type="arc" weight="1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/UnauditedCondensedInterimConsolidatedBalanceSheetsParenthetical" xlink:title="00000003 - Statement - Unaudited Condensed Interim Consolidated Balance Sheets (Parenthetical)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/UnauditedCondensedInterimConsolidatedStatementsOfOperations" xlink:title="00000004 - Statement - Unaudited Condensed Interim Consolidated Statements of Operations">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaapOperatingIncomeLoss" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ExplorationExpense" xlink:label="loc_us-gaapExplorationExpense" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOperatingIncomeLoss" xlink:to="loc_us-gaapExplorationExpense" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfGoodsAndServicesSoldDepreciation" xlink:label="loc_us-gaapCostOfGoodsAndServicesSoldDepreciation" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOperatingIncomeLoss" xlink:to="loc_us-gaapCostOfGoodsAndServicesSoldDepreciation" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LaborAndRelatedExpense" xlink:label="loc_us-gaapLaborAndRelatedExpense" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOperatingIncomeLoss" xlink:to="loc_us-gaapLaborAndRelatedExpense" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:label="loc_us-gaapGeneralAndAdministrativeExpense" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOperatingIncomeLoss" xlink:to="loc_us-gaapGeneralAndAdministrativeExpense" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="sbmt-20260930.xsd#sbmt_ManagementAndAdvisoryFees" xlink:label="loc_sbmtManagementAndAdvisoryFees" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOperatingIncomeLoss" xlink:to="loc_sbmtManagementAndAdvisoryFees" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProfessionalFees" xlink:label="loc_us-gaapProfessionalFees" />
      <link:calculationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOperatingIncomeLoss" xlink:to="loc_us-gaapProfessionalFees" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseExpense" xlink:label="loc_us-gaapOperatingLeaseExpense" />
      <link:calculationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOperatingIncomeLoss" xlink:to="loc_us-gaapOperatingLeaseExpense" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NonoperatingIncomeExpense" xlink:label="loc_us-gaapNonoperatingIncomeExpense" />
      <link:loc xlink:type="locator" xlink:href="sbmt-20260930.xsd#sbmt_SubleaseIncomes" xlink:label="loc_sbmtSubleaseIncomes" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNonoperatingIncomeExpense" xlink:to="loc_sbmtSubleaseIncomes" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ForeignCurrencyTransactionGainLossAfterTax" xlink:label="loc_us-gaapForeignCurrencyTransactionGainLossAfterTax" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNonoperatingIncomeExpense" xlink:to="loc_us-gaapForeignCurrencyTransactionGainLossAfterTax" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestIncomeOther" xlink:label="loc_us-gaapInterestIncomeOther" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNonoperatingIncomeExpense" xlink:to="loc_us-gaapInterestIncomeOther" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="sbmt-20260930.xsd#sbmt_InterestExpenses" xlink:label="loc_sbmtInterestExpenses" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNonoperatingIncomeExpense" xlink:to="loc_sbmtInterestExpenses" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherIncome" xlink:label="loc_us-gaapOtherIncome" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNonoperatingIncomeExpense" xlink:to="loc_us-gaapOtherIncome" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaapProfitLoss" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapProfitLoss" xlink:to="loc_us-gaapOperatingIncomeLoss" xlink:type="arc" weight="1" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapProfitLoss" xlink:to="loc_us-gaapNonoperatingIncomeExpense" xlink:type="arc" weight="1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/UnauditedCondensedInterimConsolidatedStatementsOfOperationsParenthetical" xlink:title="00000005 - Statement - Unaudited Condensed Interim Consolidated Statements of Operations (Parenthetical)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/UnauditedCondensedInterimConsolidatedStatementsOfChangesInStockholdersEquity" xlink:title="00000006 - Statement - Unaudited Condensed Interim Consolidated Statements of Changes in Stockholders&apos; Equity" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/UnauditedCondensedInterimConsolidatedStatementsOfCashFlows" xlink:title="00000007 - Statement - Unaudited Condensed Interim Consolidated Statements of Cash Flows">
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaapNetIncomeLoss" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapNetIncomeLoss" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaapShareBasedCompensation" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapShareBasedCompensation" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Depreciation" xlink:label="loc_us-gaapDepreciation" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapDepreciation" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInPrepaidExpense" xlink:label="loc_us-gaapIncreaseDecreaseInPrepaidExpense" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInPrepaidExpense" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:label="loc_us-gaapIncreaseDecreaseInAccountsPayableAndAccruedLiabilities" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet" xlink:label="loc_us-gaapIncreaseDecreaseInOtherOperatingCapitalNet" />
      <link:calculationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInOtherOperatingCapitalNet" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet" xlink:label="loc_us-gaapIncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet" />
      <link:calculationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaapNetCashProvidedByUsedInInvestingActivities" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquireBusinessesGross" xlink:label="loc_us-gaapPaymentsToAcquireBusinessesGross" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInInvestingActivities" xlink:to="loc_us-gaapPaymentsToAcquireBusinessesGross" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="sbmt-20260930.xsd#sbmt_PaymentsToAcquireMineralRightsGreatRepublic" xlink:label="loc_sbmtPaymentsToAcquireMineralRightsGreatRepublic" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInInvestingActivities" xlink:to="loc_sbmtPaymentsToAcquireMineralRightsGreatRepublic" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="sbmt-20260930.xsd#sbmt_PaymentsToAcquireMineralRightsGoldsmith" xlink:label="loc_sbmtPaymentsToAcquireMineralRightsGoldsmith" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInInvestingActivities" xlink:to="loc_sbmtPaymentsToAcquireMineralRightsGoldsmith" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="sbmt-20260930.xsd#sbmt_AcquisitionOfPurchaseOfFerryLane" xlink:label="loc_sbmtAcquisitionOfPurchaseOfFerryLane" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInInvestingActivities" xlink:to="loc_sbmtAcquisitionOfPurchaseOfFerryLane" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaapPaymentsToAcquirePropertyPlantAndEquipment" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInInvestingActivities" xlink:to="loc_us-gaapPaymentsToAcquirePropertyPlantAndEquipment" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromWarrantExercises" xlink:label="loc_us-gaapProceedsFromWarrantExercises" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapProceedsFromWarrantExercises" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:label="loc_us-gaapProceedsFromIssuanceOfCommonStock" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapProceedsFromIssuanceOfCommonStock" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromIssuanceInitialPublicOffering" xlink:label="loc_us-gaapProceedsFromIssuanceInitialPublicOffering" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapProceedsFromIssuanceInitialPublicOffering" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:label="loc_us-gaapCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:to="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:type="arc" weight="1" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:to="loc_us-gaapNetCashProvidedByUsedInInvestingActivities" xlink:type="arc" weight="1" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:to="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:type="arc" weight="1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/NatureOfOperations" xlink:title="999008 - Disclosure - Nature of Operations" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/BasisOfPresentationAndUseOfEstimates" xlink:title="999009 - Disclosure - Basis of Presentation and Use of Estimates" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/SignificantAccountingPoliciesAndRecentlyIssuedAccountingStandards" xlink:title="999010 - Disclosure - Significant Accounting Policies and Recently Issued Accounting Standards" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/FinancialInstruments" xlink:title="999011 - Disclosure - Financial Instruments" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/PropertyEquipmentNet" xlink:title="999012 - Disclosure - Property &amp; Equipment, (net)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/MineralRightsAndProperties" xlink:title="999013 - Disclosure - Mineral Rights and Properties" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/PendingAcquisitionOfAssetsOfMontanaTunnelsMiningInc." xlink:title="999014 - Disclosure - Pending Acquisition of Assets of Montana Tunnels Mining, Inc." />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/EnvironmentalRemediationReserveAndReclamationDeposit" xlink:title="999015 - Disclosure - Environmental Remediation Reserve and Reclamation Deposit" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/CommitmentsAndContingencies" xlink:title="999016 - Disclosure - Commitments and Contingencies" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/StockholdersEquity" xlink:title="999017 - Disclosure - Stockholders&#8217; Equity" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/Stock-basedCompensation" xlink:title="999018 - Disclosure - Stock-based Compensation" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/OperatingLeases" xlink:title="999019 - Disclosure - Operating Leases" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/NetLossPerShare" xlink:title="999020 - Disclosure - Net Loss per Share" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/SegmentInformation" xlink:title="999021 - Disclosure - Segment Information" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/SubsequentEvents" xlink:title="999022 - Disclosure - Subsequent Events" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/BasisOfPresentationAndUseOfEstimatesTables" xlink:title="999023 - Disclosure - Basis of Presentation and Use of Estimates (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/PropertyEquipmentNetTables" xlink:title="999024 - Disclosure - Property &amp; Equipment, (net) (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/MineralRightsAndPropertiesTables" xlink:title="999025 - Disclosure - Mineral Rights and Properties (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/EnvironmentalRemediationReserveAndReclamationDepositTables" xlink:title="999026 - Disclosure - Environmental Remediation Reserve and Reclamation Deposit (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/Stock-basedCompensationTables" xlink:title="999027 - Disclosure - Stock-based Compensation (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/OperatingLeasesTables" xlink:title="999028 - Disclosure - Operating Leases (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/ScheduleOfWhollyOwnedSubsidiariesDetails" xlink:title="999029 - Disclosure - Schedule of wholly owned subsidiaries (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/BasisOfPresentationAndUseOfEstimatesDetailsNarrative" xlink:title="999030 - Disclosure - Basis of Presentation and Use of Estimates (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/ScheduleOfPropertyAndEquipmentDetails" xlink:title="999031 - Disclosure - Schedule of property and equipment (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/PropertyEquipmentNetDetailsNarrative" xlink:title="999032 - Disclosure - Property &amp; Equipment, (net) (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/ScheduleMineralRightsAndPropertiesDetails" xlink:title="999033 - Disclosure - Schedule mineral rights and properties (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/MineralRightsAndPropertiesDetailsNarrative" xlink:title="999034 - Disclosure - Mineral Rights and Properties (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/PendingAcquisitionOfAssetsOfMontanaTunnelsMiningInc.DetailsNarrative" xlink:title="999035 - Disclosure - Pending Acquisition of Assets of Montana Tunnels Mining, Inc. (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/ScheduleOfRemediationReserveAndReclamationBondBalancesDetails" xlink:title="999036 - Disclosure - Schedule of remediation reserve and reclamation bond balances (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/CommitmentsAndContingenciesDetailsNarrative" xlink:title="999037 - Disclosure - Commitments and Contingencies (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/StockholdersEquityDetailsNarrative" xlink:title="999038 - Disclosure - Stockholders&#8217; Equity (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/ScheduleOfTotalCompensationExpenseRecognizedDetails" xlink:title="999039 - Disclosure - Schedule of total compensation expense recognized (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/ScheduleOfStockOptionsDetails" xlink:title="999040 - Disclosure - Schedule of stock options (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/ScheduleOfActivityRelatedToRestrictedShareUnitsDetails" xlink:title="999041 - Disclosure - Schedule of activity related to restricted share units (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/ScheduleOfWarrantActivityRelatedToFinancingEventsDetails" xlink:title="999042 - Disclosure - Schedule of warrant activity related to financing events (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/Stock-basedCompensationDetailsNarrative" xlink:title="999043 - Disclosure - Stock-based Compensation (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/ScheduleOfMaturityAnalysisOfFutureMinimumLeasePaymentsForOperatingLeasesDetails" xlink:title="999044 - Disclosure - Schedule of maturity analysis of future minimum lease payments for operating leases (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/OperatingLeasesDetailsNarrative" xlink:title="999045 - Disclosure - Operating Leases (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://silverbowmining.com/role/SubsequentEventsDetailsNarrative" xlink:title="999046 - Disclosure - Subsequent Events (Details Narrative)" />
</link:linkbase>
