<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2025 Workiva-->
<!--r:3e8b42a2-9982-4e5e-a2ba-cbff161bae6a,g:d70611af-61cc-4834-9551-f143d63e487e-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://cannabistcompany.com/role/CONDENSEDCONSOLIDATEDINTERIMBALANCESHEETS" xlink:type="simple" xlink:href="cbstf-20250331.xsd#CONDENSEDCONSOLIDATEDINTERIMBALANCESHEETS"/>
  <link:calculationLink xlink:role="http://cannabistcompany.com/role/CONDENSEDCONSOLIDATEDINTERIMBALANCESHEETS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_54eadfba-836f-498f-b5bc-ef7ef9d20245" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_b2e2d1a1-64a1-48f5-898a-5c505afa5ec1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_54eadfba-836f-498f-b5bc-ef7ef9d20245" xlink:to="loc_us-gaap_LiabilitiesCurrent_b2e2d1a1-64a1-48f5-898a-5c505afa5ec1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_5712e8e0-9f8e-4a0b-a009-b80b60fe8446" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_54eadfba-836f-498f-b5bc-ef7ef9d20245" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_5712e8e0-9f8e-4a0b-a009-b80b60fe8446" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_9397a3d2-6eb6-4dfd-b44e-572e0d69cbac" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_54eadfba-836f-498f-b5bc-ef7ef9d20245" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_9397a3d2-6eb6-4dfd-b44e-572e0d69cbac" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityNoncurrent_bae5fcc2-416c-45db-bc79-fb3a28949452" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinanceLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_54eadfba-836f-498f-b5bc-ef7ef9d20245" xlink:to="loc_us-gaap_FinanceLeaseLiabilityNoncurrent_bae5fcc2-416c-45db-bc79-fb3a28949452" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilitiesNoncurrent_c3be8823-9c01-4e0a-8dcc-3c5b83179606" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DerivativeLiabilitiesNoncurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_54eadfba-836f-498f-b5bc-ef7ef9d20245" xlink:to="loc_us-gaap_DerivativeLiabilitiesNoncurrent_c3be8823-9c01-4e0a-8dcc-3c5b83179606" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_48071a57-f608-4db4-9bc1-892fcb12f255" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_54eadfba-836f-498f-b5bc-ef7ef9d20245" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_48071a57-f608-4db4-9bc1-892fcb12f255" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_dacad029-85fd-4412-b5e0-50e44e1f19f9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_6646d055-4e09-4505-b270-a8814b242c3c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_dacad029-85fd-4412-b5e0-50e44e1f19f9" xlink:to="loc_us-gaap_CommitmentsAndContingencies_6646d055-4e09-4505-b270-a8814b242c3c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_876b8db7-7973-4771-9730-fe82a5518a44" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_dacad029-85fd-4412-b5e0-50e44e1f19f9" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_876b8db7-7973-4771-9730-fe82a5518a44" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_8a412162-5cbe-419e-ba7d-652914f8eb54" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Liabilities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_dacad029-85fd-4412-b5e0-50e44e1f19f9" xlink:to="loc_us-gaap_Liabilities_8a412162-5cbe-419e-ba7d-652914f8eb54" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_35385f49-e469-4271-becf-0aa975e9c4c5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAsset_6198687f-671f-48da-8916-7c1e4e2a78cb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinanceLeaseRightOfUseAsset"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_35385f49-e469-4271-becf-0aa975e9c4c5" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAsset_6198687f-671f-48da-8916-7c1e4e2a78cb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxAssetsNet_6b46d751-61e8-4962-85ad-a847cf11e128" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredIncomeTaxAssetsNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_35385f49-e469-4271-becf-0aa975e9c4c5" xlink:to="loc_us-gaap_DeferredIncomeTaxAssetsNet_6b46d751-61e8-4962-85ad-a847cf11e128" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_e9673440-a858-4c7c-9970-efc3dca92202" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_35385f49-e469-4271-becf-0aa975e9c4c5" xlink:to="loc_us-gaap_AssetsCurrent_e9673440-a858-4c7c-9970-efc3dca92202" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Investments_5463ecba-3754-4f22-b641-c07b27899c48" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Investments"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_35385f49-e469-4271-becf-0aa975e9c4c5" xlink:to="loc_us-gaap_Investments_5463ecba-3754-4f22-b641-c07b27899c48" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_e88f5386-4980-4678-958c-ebaf1cce1c2d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_35385f49-e469-4271-becf-0aa975e9c4c5" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_e88f5386-4980-4678-958c-ebaf1cce1c2d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_56093c94-0db3-4044-8adf-89b7b1de4dc9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_35385f49-e469-4271-becf-0aa975e9c4c5" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_56093c94-0db3-4044-8adf-89b7b1de4dc9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesAndLoansReceivableNetNoncurrent_adf9815f-8c7a-44da-b832-22a218a1638d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NotesAndLoansReceivableNetNoncurrent"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_35385f49-e469-4271-becf-0aa975e9c4c5" xlink:to="loc_us-gaap_NotesAndLoansReceivableNetNoncurrent_adf9815f-8c7a-44da-b832-22a218a1638d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_6389f0da-2a78-4374-8cef-2739b37f73f2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_35385f49-e469-4271-becf-0aa975e9c4c5" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_6389f0da-2a78-4374-8cef-2739b37f73f2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_c4846878-2e10-4ed7-b4ea-bdfaca4c3034" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_35385f49-e469-4271-becf-0aa975e9c4c5" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_c4846878-2e10-4ed7-b4ea-bdfaca4c3034" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_f03927fe-f43b-4041-bae4-365a908dab9c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_51976579-1336-4d77-8787-03b8fa82b0be" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_f03927fe-f43b-4041-bae4-365a908dab9c" xlink:to="loc_us-gaap_AccountsPayableCurrent_51976579-1336-4d77-8787-03b8fa82b0be" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_2f0f227b-89cb-4f05-b2a8-b950adfb2317" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_f03927fe-f43b-4041-bae4-365a908dab9c" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent_2f0f227b-89cb-4f05-b2a8-b950adfb2317" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedIncomeTaxesCurrent_ceb4b2b5-8e39-461a-9c14-30660eb756aa" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccruedIncomeTaxesCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_f03927fe-f43b-4041-bae4-365a908dab9c" xlink:to="loc_us-gaap_AccruedIncomeTaxesCurrent_ceb4b2b5-8e39-461a-9c14-30660eb756aa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_554d00d0-bb99-4952-9c6c-f9ebf26a23c4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_f03927fe-f43b-4041-bae4-365a908dab9c" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_554d00d0-bb99-4952-9c6c-f9ebf26a23c4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityCurrent_de70d5c4-753e-4498-9eba-ad15c6032b21" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinanceLeaseLiabilityCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_f03927fe-f43b-4041-bae4-365a908dab9c" xlink:to="loc_us-gaap_FinanceLeaseLiabilityCurrent_de70d5c4-753e-4498-9eba-ad15c6032b21" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_85026cbf-f9ad-4ff8-9a56-86c9f978efb4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_f03927fe-f43b-4041-bae4-365a908dab9c" xlink:to="loc_us-gaap_LongTermDebtCurrent_85026cbf-f9ad-4ff8-9a56-86c9f978efb4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_60c499c5-b724-4a2c-80e6-bba5621d98f8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_f03927fe-f43b-4041-bae4-365a908dab9c" xlink:to="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_60c499c5-b724-4a2c-80e6-bba5621d98f8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_bafc8364-0597-4829-a43d-c991a5a488bb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_e7144a70-c670-41ed-91f0-d97744a836de" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_bafc8364-0597-4829-a43d-c991a5a488bb" xlink:to="loc_us-gaap_CommonStockValue_e7144a70-c670-41ed-91f0-d97744a836de" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_5c5ff1f4-3ce5-4917-aed1-b45b56748848" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PreferredStockValue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_bafc8364-0597-4829-a43d-c991a5a488bb" xlink:to="loc_us-gaap_PreferredStockValue_5c5ff1f4-3ce5-4917-aed1-b45b56748848" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbstf_ProportionateVotingStockValue_aa19c192-ec54-4a73-8aec-f5c601189043" xlink:href="cbstf-20250331.xsd#cbstf_ProportionateVotingStockValue"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_bafc8364-0597-4829-a43d-c991a5a488bb" xlink:to="loc_cbstf_ProportionateVotingStockValue_aa19c192-ec54-4a73-8aec-f5c601189043" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_52732be2-219c-4ad6-9023-a3e3c1b4ab20" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AdditionalPaidInCapitalCommonStock"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_bafc8364-0597-4829-a43d-c991a5a488bb" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_52732be2-219c-4ad6-9023-a3e3c1b4ab20" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_7e0a510a-31e9-4fa2-adf8-08176f596cdf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_bafc8364-0597-4829-a43d-c991a5a488bb" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_7e0a510a-31e9-4fa2-adf8-08176f596cdf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_164b938e-15e5-4a33-a1a6-ef7d824e005a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_09892dbf-95d3-4ba4-ba06-1b9897d4c443" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_164b938e-15e5-4a33-a1a6-ef7d824e005a" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_09892dbf-95d3-4ba4-ba06-1b9897d4c443" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_baa188d9-4b0e-4abd-83ee-c2e358aa81a2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_164b938e-15e5-4a33-a1a6-ef7d824e005a" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_baa188d9-4b0e-4abd-83ee-c2e358aa81a2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_9b7a695b-5140-4b45-96fe-2160b13f4fe4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InventoryNet"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_164b938e-15e5-4a33-a1a6-ef7d824e005a" xlink:to="loc_us-gaap_InventoryNet_9b7a695b-5140-4b45-96fe-2160b13f4fe4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_65ab9b56-2b69-4405-b998-47ae658de549" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_164b938e-15e5-4a33-a1a6-ef7d824e005a" xlink:to="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_65ab9b56-2b69-4405-b998-47ae658de549" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Cash_df6bd2af-3ad0-4f95-ba65-efe90e9c8c67" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Cash"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_164b938e-15e5-4a33-a1a6-ef7d824e005a" xlink:to="loc_us-gaap_Cash_df6bd2af-3ad0-4f95-ba65-efe90e9c8c67" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesAndLoansReceivableNetCurrent_a89d39c3-0ef9-4251-89d4-1a393d8b1a98" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NotesAndLoansReceivableNetCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_164b938e-15e5-4a33-a1a6-ef7d824e005a" xlink:to="loc_us-gaap_NotesAndLoansReceivableNetCurrent_a89d39c3-0ef9-4251-89d4-1a393d8b1a98" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_7d308099-eb1f-47cf-ac93-890e0cfee176" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_29007709-a940-4a06-8da8-41b9e86fbadd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquity"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_7d308099-eb1f-47cf-ac93-890e0cfee176" xlink:to="loc_us-gaap_StockholdersEquity_29007709-a940-4a06-8da8-41b9e86fbadd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterest_9840475c-309d-439c-97dc-52801d9ce77b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MinorityInterest"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_7d308099-eb1f-47cf-ac93-890e0cfee176" xlink:to="loc_us-gaap_MinorityInterest_9840475c-309d-439c-97dc-52801d9ce77b" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://cannabistcompany.com/role/CONDENSEDCONSOLIDATEDINTERIMSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSS" xlink:type="simple" xlink:href="cbstf-20250331.xsd#CONDENSEDCONSOLIDATEDINTERIMSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSS"/>
  <link:calculationLink xlink:role="http://cannabistcompany.com/role/CONDENSEDCONSOLIDATEDINTERIMSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_28247352-43f0-4bfe-ba17-821da7389151" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProfitLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_d9d4732b-dbd4-459f-9caf-54545c5d1723" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_28247352-43f0-4bfe-ba17-821da7389151" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_d9d4732b-dbd4-459f-9caf-54545c5d1723" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_760f42ea-6ffd-461e-8972-b0ccf0ba4a39" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_28247352-43f0-4bfe-ba17-821da7389151" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_760f42ea-6ffd-461e-8972-b0ccf0ba4a39" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_35fc4db4-0402-4a97-8674-4a444d7247f0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_2aef046d-3b6b-4c3a-b922-cfefcf976b6c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_35fc4db4-0402-4a97-8674-4a444d7247f0" xlink:to="loc_us-gaap_OperatingIncomeLoss_2aef046d-3b6b-4c3a-b922-cfefcf976b6c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_9d843eb0-2dbd-4bbc-a8aa-d4ba5f5e8e6d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_35fc4db4-0402-4a97-8674-4a444d7247f0" xlink:to="loc_us-gaap_NonoperatingIncomeExpense_9d843eb0-2dbd-4bbc-a8aa-d4ba5f5e8e6d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_5439e4f5-2ad3-46e5-b244-f615eb20ef83" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_8af0c859-e9d7-4b44-9230-382083698eed" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_5439e4f5-2ad3-46e5-b244-f615eb20ef83" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_8af0c859-e9d7-4b44-9230-382083698eed" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_b178af26-c4a0-40cc-b84d-b2b9300696c0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InterestIncomeExpenseNonoperatingNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_5439e4f5-2ad3-46e5-b244-f615eb20ef83" xlink:to="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_b178af26-c4a0-40cc-b84d-b2b9300696c0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseInterestExpense_ea08a83b-73f9-474f-b935-5294a2bc43ba" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinanceLeaseInterestExpense"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_5439e4f5-2ad3-46e5-b244-f615eb20ef83" xlink:to="loc_us-gaap_FinanceLeaseInterestExpense_ea08a83b-73f9-474f-b935-5294a2bc43ba" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_49457db6-6e99-4a09-a394-212638c63942" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_719df2b6-553a-47ba-a02c-80f3d986a26a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_49457db6-6e99-4a09-a394-212638c63942" xlink:to="loc_us-gaap_ProfitLoss_719df2b6-553a-47ba-a02c-80f3d986a26a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_072ca9a2-b88e-4073-8f0c-e9848b6d72bb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_49457db6-6e99-4a09-a394-212638c63942" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_072ca9a2-b88e-4073-8f0c-e9848b6d72bb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_19de44fd-966c-490b-9b9b-875693b34f87" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GrossProfit"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_4f0097a6-1440-4e7c-b468-401ecd8c2a9a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_19de44fd-966c-490b-9b9b-875693b34f87" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_4f0097a6-1440-4e7c-b468-401ecd8c2a9a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_1d005a5c-f376-48fe-81ac-c08b799d5e50" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_19de44fd-966c-490b-9b9b-875693b34f87" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_1d005a5c-f376-48fe-81ac-c08b799d5e50" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_9cd5b6ff-808d-41f4-9041-553fdf68fd37" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_9e5c0dc7-7b87-45c7-b3fe-e51d8a96c77b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ImpairmentOfLongLivedAssetsHeldForUse"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_9cd5b6ff-808d-41f4-9041-553fdf68fd37" xlink:to="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_9e5c0dc7-7b87-45c7-b3fe-e51d8a96c77b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_785d2154-faaf-42af-b456-6e7469b11a82" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GrossProfit"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_9cd5b6ff-808d-41f4-9041-553fdf68fd37" xlink:to="loc_us-gaap_GrossProfit_785d2154-faaf-42af-b456-6e7469b11a82" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_71c60994-44d5-491f-ad33-129428706004" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SellingGeneralAndAdministrativeExpense"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_9cd5b6ff-808d-41f4-9041-553fdf68fd37" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_71c60994-44d5-491f-ad33-129428706004" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://cannabistcompany.com/role/CONDENSEDCONSOLIDATEDINTERIMSTATEMENTSOFCASHFLOWS" xlink:type="simple" xlink:href="cbstf-20250331.xsd#CONDENSEDCONSOLIDATEDINTERIMSTATEMENTSOFCASHFLOWS"/>
  <link:calculationLink xlink:role="http://cannabistcompany.com/role/CONDENSEDCONSOLIDATEDINTERIMSTATEMENTSOFCASHFLOWS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_90921582-21a6-4335-9955-aff2181d9931" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities_130c8081-28b2-4d78-83e5-efe0dbafe834" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_90921582-21a6-4335-9955-aff2181d9931" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities_130c8081-28b2-4d78-83e5-efe0dbafe834" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInNotesReceivables_3c2d0354-33f0-4e64-9bac-47787875a1db" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInNotesReceivables"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_90921582-21a6-4335-9955-aff2181d9931" xlink:to="loc_us-gaap_IncreaseDecreaseInNotesReceivables_3c2d0354-33f0-4e64-9bac-47787875a1db" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_b6bf1c12-5c02-4e47-baec-b284f03259a5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInAccountsPayable"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_90921582-21a6-4335-9955-aff2181d9931" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_b6bf1c12-5c02-4e47-baec-b284f03259a5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_d793a57a-34e4-40e2-b873-64c905980a6e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_90921582-21a6-4335-9955-aff2181d9931" xlink:to="loc_us-gaap_ShareBasedCompensation_d793a57a-34e4-40e2-b873-64c905980a6e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_20571cc6-68ea-4b8b-984c-47bbe4c09cd5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_90921582-21a6-4335-9955-aff2181d9931" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_20571cc6-68ea-4b8b-984c-47bbe4c09cd5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_e9acc99b-2fc8-42db-92ff-b7e7178f3f18" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInInventories"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_90921582-21a6-4335-9955-aff2181d9931" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_e9acc99b-2fc8-42db-92ff-b7e7178f3f18" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts_077f1242-ec9f-4129-b7dc-dd6ca26fa568" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AmortizationOfFinancingCostsAndDiscounts"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_90921582-21a6-4335-9955-aff2181d9931" xlink:to="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts_077f1242-ec9f-4129-b7dc-dd6ca26fa568" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_9d3eb63f-5270-4483-8c98-39866d8da78c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_90921582-21a6-4335-9955-aff2181d9931" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_9d3eb63f-5270-4483-8c98-39866d8da78c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_efda1acb-eab8-4449-bb23-66b9db739b7a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_90921582-21a6-4335-9955-aff2181d9931" xlink:to="loc_us-gaap_ProfitLoss_efda1acb-eab8-4449-bb23-66b9db739b7a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbstf_ChangeInFairValueOfDerivativeLiability_38b6687b-ed48-4281-b0e6-d8077d3931ef" xlink:href="cbstf-20250331.xsd#cbstf_ChangeInFairValueOfDerivativeLiability"/>
    <link:calculationArc order="10" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_90921582-21a6-4335-9955-aff2181d9931" xlink:to="loc_cbstf_ChangeInFairValueOfDerivativeLiability_38b6687b-ed48-4281-b0e6-d8077d3931ef" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeconsolidationGainOrLossAmount_2f4cb755-2750-4214-abcf-b3985143bc1d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeconsolidationGainOrLossAmount"/>
    <link:calculationArc order="11" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_90921582-21a6-4335-9955-aff2181d9931" xlink:to="loc_us-gaap_DeconsolidationGainOrLossAmount_2f4cb755-2750-4214-abcf-b3985143bc1d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_9ebc5846-0ab2-4b12-bec7-e7f839ad9b66" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets"/>
    <link:calculationArc order="12" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_90921582-21a6-4335-9955-aff2181d9931" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_9ebc5846-0ab2-4b12-bec7-e7f839ad9b66" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_76bc3b20-935b-4443-b8af-40d6c4671934" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable"/>
    <link:calculationArc order="13" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_90921582-21a6-4335-9955-aff2181d9931" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_76bc3b20-935b-4443-b8af-40d6c4671934" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbstf_ProvisionForObsoleteInventoryAndOtherAssets_7a0cf1b0-1bec-41ef-8335-30b4ca06f0a4" xlink:href="cbstf-20250331.xsd#cbstf_ProvisionForObsoleteInventoryAndOtherAssets"/>
    <link:calculationArc order="14" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_90921582-21a6-4335-9955-aff2181d9931" xlink:to="loc_cbstf_ProvisionForObsoleteInventoryAndOtherAssets_7a0cf1b0-1bec-41ef-8335-30b4ca06f0a4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_7a178fdd-7958-483a-a72f-c98172b9f417" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ImpairmentOfLongLivedAssetsHeldForUse"/>
    <link:calculationArc order="15" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_90921582-21a6-4335-9955-aff2181d9931" xlink:to="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_7a178fdd-7958-483a-a72f-c98172b9f417" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbstf_IncreaseDecreaseInAccruedExpensesAndOtherCurrentLiabilities_df04dcf4-4719-44d1-83d2-8cc92bfa6632" xlink:href="cbstf-20250331.xsd#cbstf_IncreaseDecreaseInAccruedExpensesAndOtherCurrentLiabilities"/>
    <link:calculationArc order="16" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_90921582-21a6-4335-9955-aff2181d9931" xlink:to="loc_cbstf_IncreaseDecreaseInAccruedExpensesAndOtherCurrentLiabilities_df04dcf4-4719-44d1-83d2-8cc92bfa6632" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_6136bd79-fbf1-43f2-830e-e4985684136d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:calculationArc order="17" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_90921582-21a6-4335-9955-aff2181d9931" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_6136bd79-fbf1-43f2-830e-e4985684136d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbstf_ChangeInInvestmentFairValue_e53fe101-2075-47d0-9625-4670c7915839" xlink:href="cbstf-20250331.xsd#cbstf_ChangeInInvestmentFairValue"/>
    <link:calculationArc order="18" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_90921582-21a6-4335-9955-aff2181d9931" xlink:to="loc_cbstf_ChangeInInvestmentFairValue_e53fe101-2075-47d0-9625-4670c7915839" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_bb1c670d-4314-4bdf-abaa-8c9b330afcf3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="19" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_90921582-21a6-4335-9955-aff2181d9931" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_bb1c670d-4314-4bdf-abaa-8c9b330afcf3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncashIncomeExpense_c0bd209b-e5aa-419b-981c-fc9a0e6fce2b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherNoncashIncomeExpense"/>
    <link:calculationArc order="20" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_90921582-21a6-4335-9955-aff2181d9931" xlink:to="loc_us-gaap_OtherNoncashIncomeExpense_c0bd209b-e5aa-419b-981c-fc9a0e6fce2b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_556718fe-292e-4f8a-85fe-4deeff329403" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_6db68d8b-5ddb-45b7-8180-c6e69f34ddfd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_556718fe-292e-4f8a-85fe-4deeff329403" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_6db68d8b-5ddb-45b7-8180-c6e69f34ddfd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_1bd1a92a-ac5a-478c-8ff1-f28fc325a35c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_556718fe-292e-4f8a-85fe-4deeff329403" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_1bd1a92a-ac5a-478c-8ff1-f28fc325a35c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_e2d90f0d-bb4f-4f31-a044-1dfdb73249c7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_556718fe-292e-4f8a-85fe-4deeff329403" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_e2d90f0d-bb4f-4f31-a044-1dfdb73249c7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_0de2e93e-a47d-4762-94f5-044c49b66563" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbstf_ProceedsFromPaymentsForDepositsNet_a920a455-80e4-4a24-b806-64c20aa304cc" xlink:href="cbstf-20250331.xsd#cbstf_ProceedsFromPaymentsForDepositsNet"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_0de2e93e-a47d-4762-94f5-044c49b66563" xlink:to="loc_cbstf_ProceedsFromPaymentsForDepositsNet_a920a455-80e4-4a24-b806-64c20aa304cc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromDivestitureOfBusinesses_cb307a1d-76f9-40a3-9507-d31c28aa13cf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromDivestitureOfBusinesses"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_0de2e93e-a47d-4762-94f5-044c49b66563" xlink:to="loc_us-gaap_ProceedsFromDivestitureOfBusinesses_cb307a1d-76f9-40a3-9507-d31c28aa13cf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_2e8fe57a-b128-4bba-bc69-570be2670905" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_0de2e93e-a47d-4762-94f5-044c49b66563" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_2e8fe57a-b128-4bba-bc69-570be2670905" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbstf_ProceedsFromSaleOfLicense_e3dc5f7c-2b12-47ce-9829-4cee9212e4c9" xlink:href="cbstf-20250331.xsd#cbstf_ProceedsFromSaleOfLicense"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_0de2e93e-a47d-4762-94f5-044c49b66563" xlink:to="loc_cbstf_ProceedsFromSaleOfLicense_e3dc5f7c-2b12-47ce-9829-4cee9212e4c9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_cfe52b40-7347-429b-b840-3c85a6664430" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Cash_5f63d1e2-ff40-41a9-a142-9cab97cc16b5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Cash"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_cfe52b40-7347-429b-b840-3c85a6664430" xlink:to="loc_us-gaap_Cash_5f63d1e2-ff40-41a9-a142-9cab97cc16b5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCash_9d59fd0c-4c1c-44ea-b916-4612b66b62f9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestrictedCash"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_cfe52b40-7347-429b-b840-3c85a6664430" xlink:to="loc_us-gaap_RestrictedCash_9d59fd0c-4c1c-44ea-b916-4612b66b62f9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_95cbe5b1-10fd-40a6-b999-b82437e9593d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbstf_PaymentsOfLeaseLiabilities_f47f6eb8-1ec9-4afb-a61b-1b86b47a42ba" xlink:href="cbstf-20250331.xsd#cbstf_PaymentsOfLeaseLiabilities"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_95cbe5b1-10fd-40a6-b999-b82437e9593d" xlink:to="loc_cbstf_PaymentsOfLeaseLiabilities_f47f6eb8-1ec9-4afb-a61b-1b86b47a42ba" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfNotesPayable_925e3058-2927-4e44-829b-2cc406892e04" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RepaymentsOfNotesPayable"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_95cbe5b1-10fd-40a6-b999-b82437e9593d" xlink:to="loc_us-gaap_RepaymentsOfNotesPayable_925e3058-2927-4e44-829b-2cc406892e04" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDebtIssuanceCosts_659cd4ba-cf75-47c2-a7e1-4fb9de6978e3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsOfDebtIssuanceCosts"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_95cbe5b1-10fd-40a6-b999-b82437e9593d" xlink:to="loc_us-gaap_PaymentsOfDebtIssuanceCosts_659cd4ba-cf75-47c2-a7e1-4fb9de6978e3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfFirstMortgageBond_589c115d-73a7-462f-bbad-8cf595980ac5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RepaymentsOfFirstMortgageBond"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_95cbe5b1-10fd-40a6-b999-b82437e9593d" xlink:to="loc_us-gaap_RepaymentsOfFirstMortgageBond_589c115d-73a7-462f-bbad-8cf595980ac5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromConvertibleDebt_15f93fe2-cd48-4b13-b431-ba05624d0081" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromConvertibleDebt"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_95cbe5b1-10fd-40a6-b999-b82437e9593d" xlink:to="loc_us-gaap_ProceedsFromConvertibleDebt_15f93fe2-cd48-4b13-b431-ba05624d0081" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://cannabistcompany.com/role/InventoryScheduleofInventoryDetails" xlink:type="simple" xlink:href="cbstf-20250331.xsd#InventoryScheduleofInventoryDetails"/>
  <link:calculationLink xlink:role="http://cannabistcompany.com/role/InventoryScheduleofInventoryDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_a2f25398-a426-4e2d-a762-3dd54ccc8d5d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InventoryNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryFinishedGoodsNetOfReserves_518b1526-171a-43b8-a833-244ce29685cb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InventoryFinishedGoodsNetOfReserves"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_a2f25398-a426-4e2d-a762-3dd54ccc8d5d" xlink:to="loc_us-gaap_InventoryFinishedGoodsNetOfReserves_518b1526-171a-43b8-a833-244ce29685cb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryWorkInProcessNetOfReserves_52a7d014-9c94-476a-be1e-14f10ff09f79" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InventoryWorkInProcessNetOfReserves"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_a2f25398-a426-4e2d-a762-3dd54ccc8d5d" xlink:to="loc_us-gaap_InventoryWorkInProcessNetOfReserves_52a7d014-9c94-476a-be1e-14f10ff09f79" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryRawMaterialsNetOfReserves_cf8a3c78-43a4-4f41-9b17-7ee80f570d87" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InventoryRawMaterialsNetOfReserves"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_a2f25398-a426-4e2d-a762-3dd54ccc8d5d" xlink:to="loc_us-gaap_InventoryRawMaterialsNetOfReserves_cf8a3c78-43a4-4f41-9b17-7ee80f570d87" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://cannabistcompany.com/role/CurrentandLongTermDebtScheduleofCurrentandLongTermObligationsNetDetails" xlink:type="simple" xlink:href="cbstf-20250331.xsd#CurrentandLongTermDebtScheduleofCurrentandLongTermObligationsNetDetails"/>
  <link:calculationLink xlink:role="http://cannabistcompany.com/role/CurrentandLongTermDebtScheduleofCurrentandLongTermObligationsNetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_b016b8eb-20e9-4239-b377-d1cd0266e8db" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermDebt"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_9a472122-d557-4de8-8a9a-1ce03eb5e064" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_b016b8eb-20e9-4239-b377-d1cd0266e8db" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_9a472122-d557-4de8-8a9a-1ce03eb5e064" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_9fa0c1b4-b2de-4420-806e-357d1842209e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredFinanceCostsNet"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_b016b8eb-20e9-4239-b377-d1cd0266e8db" xlink:to="loc_us-gaap_DeferredFinanceCostsNet_9fa0c1b4-b2de-4420-806e-357d1842209e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscount_ec7a82d1-0bde-4636-9af9-2e9937bd39e6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentUnamortizedDiscount"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_b016b8eb-20e9-4239-b377-d1cd0266e8db" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscount_ec7a82d1-0bde-4636-9af9-2e9937bd39e6" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://cannabistcompany.com/role/CurrentandLongTermDebtScheduleofCurrentandLongTermObligationsNetDetails_1" xlink:type="simple" xlink:href="cbstf-20250331.xsd#CurrentandLongTermDebtScheduleofCurrentandLongTermObligationsNetDetails_1"/>
  <link:calculationLink xlink:role="http://cannabistcompany.com/role/CurrentandLongTermDebtScheduleofCurrentandLongTermObligationsNetDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_d88d8ca5-8c3f-471c-a277-583502ebba6c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermDebt"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_202ff696-eec8-4141-9df1-4f21e7411f2c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_d88d8ca5-8c3f-471c-a277-583502ebba6c" xlink:to="loc_us-gaap_LongTermDebtCurrent_202ff696-eec8-4141-9df1-4f21e7411f2c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_35e0b127-df5c-4c51-b5fd-47074b84b473" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_d88d8ca5-8c3f-471c-a277-583502ebba6c" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_35e0b127-df5c-4c51-b5fd-47074b84b473" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://cannabistcompany.com/role/CurrentandLongTermDebtTotalInterestandAmortizationExpenseonDebtObligationsDetails" xlink:type="simple" xlink:href="cbstf-20250331.xsd#CurrentandLongTermDebtTotalInterestandAmortizationExpenseonDebtObligationsDetails"/>
  <link:calculationLink xlink:role="http://cannabistcompany.com/role/CurrentandLongTermDebtTotalInterestandAmortizationExpenseonDebtObligationsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebt_b6b41bfc-8fa5-4aac-a346-39120306d747" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InterestExpenseDebt"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebtExcludingAmortization_33ae5d1d-f4ac-4232-9a1b-2ec11f26a6d2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InterestExpenseDebtExcludingAmortization"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestExpenseDebt_b6b41bfc-8fa5-4aac-a346-39120306d747" xlink:to="loc_us-gaap_InterestExpenseDebtExcludingAmortization_33ae5d1d-f4ac-4232-9a1b-2ec11f26a6d2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbstf_AmortizationOfDebtDiscount_69857e56-ce75-439e-b563-25df1151c40f" xlink:href="cbstf-20250331.xsd#cbstf_AmortizationOfDebtDiscount"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestExpenseDebt_b6b41bfc-8fa5-4aac-a346-39120306d747" xlink:to="loc_cbstf_AmortizationOfDebtDiscount_69857e56-ce75-439e-b563-25df1151c40f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts_c0ad5391-dca3-4074-9b94-9ee2b018f35e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AmortizationOfFinancingCosts"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestExpenseDebt_b6b41bfc-8fa5-4aac-a346-39120306d747" xlink:to="loc_us-gaap_AmortizationOfFinancingCosts_c0ad5391-dca3-4074-9b94-9ee2b018f35e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbstf_OtherInterestExpenseIncomeNet_a5e40e1c-ccb8-4d8a-a0aa-805b24678ef1" xlink:href="cbstf-20250331.xsd#cbstf_OtherInterestExpenseIncomeNet"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestExpenseDebt_b6b41bfc-8fa5-4aac-a346-39120306d747" xlink:to="loc_cbstf_OtherInterestExpenseIncomeNet_a5e40e1c-ccb8-4d8a-a0aa-805b24678ef1" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://cannabistcompany.com/role/PropertyandEquipmentDetails" xlink:type="simple" xlink:href="cbstf-20250331.xsd#PropertyandEquipmentDetails"/>
  <link:calculationLink xlink:role="http://cannabistcompany.com/role/PropertyandEquipmentDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_b4596292-db75-4510-8c94-5625742e155d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_08d101c1-a909-4fb3-8e17-5d4a38592e80" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_b4596292-db75-4510-8c94-5625742e155d" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_08d101c1-a909-4fb3-8e17-5d4a38592e80" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_b330b07f-e538-4eff-87ae-f2df84db452a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_b4596292-db75-4510-8c94-5625742e155d" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_b330b07f-e538-4eff-87ae-f2df84db452a" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://cannabistcompany.com/role/PrepaidExpensesandOtherCurrentAssetsDetails" xlink:type="simple" xlink:href="cbstf-20250331.xsd#PrepaidExpensesandOtherCurrentAssetsDetails"/>
  <link:calculationLink xlink:role="http://cannabistcompany.com/role/PrepaidExpensesandOtherCurrentAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_25e44ef0-5236-4f70-b188-e20e64263508" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseCurrent_b2a9733d-d9d6-4217-8ff7-c74677ed6817" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PrepaidExpenseCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_25e44ef0-5236-4f70-b188-e20e64263508" xlink:to="loc_us-gaap_PrepaidExpenseCurrent_b2a9733d-d9d6-4217-8ff7-c74677ed6817" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbstf_ShortTermDepositsCurrent_767ba968-0a0c-41d1-a7f7-faa34d6702d3" xlink:href="cbstf-20250331.xsd#cbstf_ShortTermDepositsCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_25e44ef0-5236-4f70-b188-e20e64263508" xlink:to="loc_cbstf_ShortTermDepositsCurrent_767ba968-0a0c-41d1-a7f7-faa34d6702d3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_b14f9731-22ee-462b-ba4b-52706b4423e6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_25e44ef0-5236-4f70-b188-e20e64263508" xlink:to="loc_us-gaap_OtherAssetsCurrent_b14f9731-22ee-462b-ba4b-52706b4423e6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbstf_ExciseAndSalesTaxReceivable_23cba34e-2ce6-43d2-a405-f455e35c91ed" xlink:href="cbstf-20250331.xsd#cbstf_ExciseAndSalesTaxReceivable"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_25e44ef0-5236-4f70-b188-e20e64263508" xlink:to="loc_cbstf_ExciseAndSalesTaxReceivable_23cba34e-2ce6-43d2-a405-f455e35c91ed" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://cannabistcompany.com/role/OtherNonCurrentAssetsDetails" xlink:type="simple" xlink:href="cbstf-20250331.xsd#OtherNonCurrentAssetsDetails"/>
  <link:calculationLink xlink:role="http://cannabistcompany.com/role/OtherNonCurrentAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_3d5a0913-432b-43e2-a2e3-5b0c2c1d20ee" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbstf_LongTermDepositsNonCurrent_b3a47c4c-1d9e-46a3-8e2e-803464c947da" xlink:href="cbstf-20250331.xsd#cbstf_LongTermDepositsNonCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsNoncurrent_3d5a0913-432b-43e2-a2e3-5b0c2c1d20ee" xlink:to="loc_cbstf_LongTermDepositsNonCurrent_b3a47c4c-1d9e-46a3-8e2e-803464c947da" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbstf_InvestmentInAffiliatesNonCurrent_01807f6b-a01c-4c9e-927b-de211320078f" xlink:href="cbstf-20250331.xsd#cbstf_InvestmentInAffiliatesNonCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsNoncurrent_3d5a0913-432b-43e2-a2e3-5b0c2c1d20ee" xlink:to="loc_cbstf_InvestmentInAffiliatesNonCurrent_01807f6b-a01c-4c9e-927b-de211320078f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashNoncurrent_b056531a-0d11-4db1-9c02-ff9325e9df8d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestrictedCashNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsNoncurrent_3d5a0913-432b-43e2-a2e3-5b0c2c1d20ee" xlink:to="loc_us-gaap_RestrictedCashNoncurrent_b056531a-0d11-4db1-9c02-ff9325e9df8d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbstf_LongTermTaxReceivable_b424f048-7f90-43e3-b00e-ec1e6eb34fc1" xlink:href="cbstf-20250331.xsd#cbstf_LongTermTaxReceivable"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherAssetsNoncurrent_3d5a0913-432b-43e2-a2e3-5b0c2c1d20ee" xlink:to="loc_cbstf_LongTermTaxReceivable_b424f048-7f90-43e3-b00e-ec1e6eb34fc1" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://cannabistcompany.com/role/AccruedExpensesandOtherCurrentLiabilitiesScheduleofAccruedExpensesandOtherCurrentLiabilitiesDetails" xlink:type="simple" xlink:href="cbstf-20250331.xsd#AccruedExpensesandOtherCurrentLiabilitiesScheduleofAccruedExpensesandOtherCurrentLiabilitiesDetails"/>
  <link:calculationLink xlink:role="http://cannabistcompany.com/role/AccruedExpensesandOtherCurrentLiabilitiesScheduleofAccruedExpensesandOtherCurrentLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_cbstf_AccruedExpensesAndOtherCurrentLiabilities_49735f3d-5d7f-471d-aaa5-66280b41c413" xlink:href="cbstf-20250331.xsd#cbstf_AccruedExpensesAndOtherCurrentLiabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbstf_OtherAccruedExpensesCurrent_308232e8-6fad-4e19-8956-06f4bf1d41de" xlink:href="cbstf-20250331.xsd#cbstf_OtherAccruedExpensesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cbstf_AccruedExpensesAndOtherCurrentLiabilities_49735f3d-5d7f-471d-aaa5-66280b41c413" xlink:to="loc_cbstf_OtherAccruedExpensesCurrent_308232e8-6fad-4e19-8956-06f4bf1d41de" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_35edd5b6-0ed2-4e73-9801-2330aeb7ecef" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cbstf_AccruedExpensesAndOtherCurrentLiabilities_49735f3d-5d7f-471d-aaa5-66280b41c413" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_35edd5b6-0ed2-4e73-9801-2330aeb7ecef" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_8ada003e-f945-414c-bc33-e65a5c9f97f9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherLiabilitiesCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cbstf_AccruedExpensesAndOtherCurrentLiabilities_49735f3d-5d7f-471d-aaa5-66280b41c413" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_8ada003e-f945-414c-bc33-e65a5c9f97f9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbstf_TaxesPropertyAndOtherCurrent_3a618744-6f9e-4be9-8058-e1d1475a95ef" xlink:href="cbstf-20250331.xsd#cbstf_TaxesPropertyAndOtherCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cbstf_AccruedExpensesAndOtherCurrentLiabilities_49735f3d-5d7f-471d-aaa5-66280b41c413" xlink:to="loc_cbstf_TaxesPropertyAndOtherCurrent_3a618744-6f9e-4be9-8058-e1d1475a95ef" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://cannabistcompany.com/role/FinancialInstrumentsandFairValueMeasurementsScheduleofFinancialInstrumentsMeasuredatFairValueDetails" xlink:type="simple" xlink:href="cbstf-20250331.xsd#FinancialInstrumentsandFairValueMeasurementsScheduleofFinancialInstrumentsMeasuredatFairValueDetails"/>
  <link:calculationLink xlink:role="http://cannabistcompany.com/role/FinancialInstrumentsandFairValueMeasurementsScheduleofFinancialInstrumentsMeasuredatFairValueDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_8729ffd0-45f1-47df-9a48-bddb2dee9a30" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsFairValueDisclosure"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentOwnedAtFairValue_7f309cd0-0e89-493e-9042-6dc3b9adcc77" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InvestmentOwnedAtFairValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_8729ffd0-45f1-47df-9a48-bddb2dee9a30" xlink:to="loc_us-gaap_InvestmentOwnedAtFairValue_7f309cd0-0e89-493e-9042-6dc3b9adcc77" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialLiabilitiesFairValueDisclosure_5ea14740-5036-4cdd-bbb2-4b5a0be86dde" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinancialLiabilitiesFairValueDisclosure"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilitiesNoncurrent_d3b64d53-a755-4520-a439-19a61a545248" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DerivativeLiabilitiesNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinancialLiabilitiesFairValueDisclosure_5ea14740-5036-4cdd-bbb2-4b5a0be86dde" xlink:to="loc_us-gaap_DerivativeLiabilitiesNoncurrent_d3b64d53-a755-4520-a439-19a61a545248" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://cannabistcompany.com/role/IntangibleAssetsScheduleofGoodwillandIntangibleAssetsDetails" xlink:type="simple" xlink:href="cbstf-20250331.xsd#IntangibleAssetsScheduleofGoodwillandIntangibleAssetsDetails"/>
  <link:calculationLink xlink:role="http://cannabistcompany.com/role/IntangibleAssetsScheduleofGoodwillandIntangibleAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_6e5c75a7-04cd-4edc-a29b-dc75aaf0b5a1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_228d4f33-59d5-4715-88d9-6942178181bc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_6e5c75a7-04cd-4edc-a29b-dc75aaf0b5a1" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_228d4f33-59d5-4715-88d9-6942178181bc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_3b713fe9-a800-46d3-9797-714ac19a9719" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_6e5c75a7-04cd-4edc-a29b-dc75aaf0b5a1" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_3b713fe9-a800-46d3-9797-714ac19a9719" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://cannabistcompany.com/role/SellingGeneralandAdministrativeExpensesDetails" xlink:type="simple" xlink:href="cbstf-20250331.xsd#SellingGeneralandAdministrativeExpensesDetails"/>
  <link:calculationLink xlink:role="http://cannabistcompany.com/role/SellingGeneralandAdministrativeExpensesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_d6a88aff-5b91-4f22-a8a9-f1a7b67b1720" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SellingGeneralAndAdministrativeExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbstf_SalariesAndBenefits_dd9eadb4-97a7-4b95-bbe8-cba704cc2284" xlink:href="cbstf-20250331.xsd#cbstf_SalariesAndBenefits"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_SellingGeneralAndAdministrativeExpense_d6a88aff-5b91-4f22-a8a9-f1a7b67b1720" xlink:to="loc_cbstf_SalariesAndBenefits_dd9eadb4-97a7-4b95-bbe8-cba704cc2284" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfessionalFees_a60203e6-a1a5-4dc5-b4fa-8bbc0a723f64" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProfessionalFees"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_SellingGeneralAndAdministrativeExpense_d6a88aff-5b91-4f22-a8a9-f1a7b67b1720" xlink:to="loc_us-gaap_ProfessionalFees_a60203e6-a1a5-4dc5-b4fa-8bbc0a723f64" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationAndAmortization_a0cee7f5-924b-4b46-9bdb-06117d187733" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DepreciationAndAmortization"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_SellingGeneralAndAdministrativeExpense_d6a88aff-5b91-4f22-a8a9-f1a7b67b1720" xlink:to="loc_us-gaap_DepreciationAndAmortization_a0cee7f5-924b-4b46-9bdb-06117d187733" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbstf_OperatingFacilitiesCosts_b69d298c-b3fe-406d-bf34-af967c4ff82a" xlink:href="cbstf-20250331.xsd#cbstf_OperatingFacilitiesCosts"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_SellingGeneralAndAdministrativeExpense_d6a88aff-5b91-4f22-a8a9-f1a7b67b1720" xlink:to="loc_cbstf_OperatingFacilitiesCosts_b69d298c-b3fe-406d-bf34-af967c4ff82a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbstf_OperatingOfficeAndGeneralExpenses_2f83dfc2-be69-48ed-90d3-5e80808d6226" xlink:href="cbstf-20250331.xsd#cbstf_OperatingOfficeAndGeneralExpenses"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_SellingGeneralAndAdministrativeExpense_d6a88aff-5b91-4f22-a8a9-f1a7b67b1720" xlink:to="loc_cbstf_OperatingOfficeAndGeneralExpenses_2f83dfc2-be69-48ed-90d3-5e80808d6226" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdvertisingExpense_b9aa7247-529d-4142-9f4a-411d1689bfff" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AdvertisingExpense"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_SellingGeneralAndAdministrativeExpense_d6a88aff-5b91-4f22-a8a9-f1a7b67b1720" xlink:to="loc_us-gaap_AdvertisingExpense_b9aa7247-529d-4142-9f4a-411d1689bfff" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherSellingGeneralAndAdministrativeExpense_521cbce6-cbce-4bff-bacc-d442d47e3695" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherSellingGeneralAndAdministrativeExpense"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_SellingGeneralAndAdministrativeExpense_d6a88aff-5b91-4f22-a8a9-f1a7b67b1720" xlink:to="loc_us-gaap_OtherSellingGeneralAndAdministrativeExpense_521cbce6-cbce-4bff-bacc-d442d47e3695" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://cannabistcompany.com/role/OtherIncomeExpenseNetSummaryofOtherExpenseNetDetails" xlink:type="simple" xlink:href="cbstf-20250331.xsd#OtherIncomeExpenseNetSummaryofOtherExpenseNetDetails"/>
  <link:calculationLink xlink:role="http://cannabistcompany.com/role/OtherIncomeExpenseNetSummaryofOtherExpenseNetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_7c0d0a7b-771f-4937-bc84-15ccccbd7dc9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal_d16fec5e-da65-45ee-a0f1-3a85f2dd0536" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNonoperatingIncomeExpense_7c0d0a7b-771f-4937-bc84-15ccccbd7dc9" xlink:to="loc_us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal_d16fec5e-da65-45ee-a0f1-3a85f2dd0536" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbstf_AdjustmentForHeldForSale_64e20be7-4936-4f4e-8884-799dc1b629ea" xlink:href="cbstf-20250331.xsd#cbstf_AdjustmentForHeldForSale"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNonoperatingIncomeExpense_7c0d0a7b-771f-4937-bc84-15ccccbd7dc9" xlink:to="loc_cbstf_AdjustmentForHeldForSale_64e20be7-4936-4f4e-8884-799dc1b629ea" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RentalIncomeNonoperating_1d550b67-67c1-4787-83f3-10906c20aa4d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RentalIncomeNonoperating"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNonoperatingIncomeExpense_7c0d0a7b-771f-4937-bc84-15ccccbd7dc9" xlink:to="loc_us-gaap_RentalIncomeNonoperating_1d550b67-67c1-4787-83f3-10906c20aa4d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_9973fb6d-3a85-4c69-9cf2-5253a19a043f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestructuringCharges"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNonoperatingIncomeExpense_7c0d0a7b-771f-4937-bc84-15ccccbd7dc9" xlink:to="loc_us-gaap_RestructuringCharges_9973fb6d-3a85-4c69-9cf2-5253a19a043f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet_e429f4c5-e561-4d92-a24d-7a4c5e84dc3d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNonoperatingIncomeExpense_7c0d0a7b-771f-4937-bc84-15ccccbd7dc9" xlink:to="loc_us-gaap_EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet_e429f4c5-e561-4d92-a24d-7a4c5e84dc3d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbstf_OtherIncomeExpenseDisclosureNonoperating_b3fb9803-44aa-4f60-a233-82c47d537ef6" xlink:href="cbstf-20250331.xsd#cbstf_OtherIncomeExpenseDisclosureNonoperating"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNonoperatingIncomeExpense_7c0d0a7b-771f-4937-bc84-15ccccbd7dc9" xlink:to="loc_cbstf_OtherIncomeExpenseDisclosureNonoperating_b3fb9803-44aa-4f60-a233-82c47d537ef6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbstf_ChangeInFairValueOfTheDerivativeAsset_3e5f1cd5-f61a-46cf-82cd-b6a3b2a9ea57" xlink:href="cbstf-20250331.xsd#cbstf_ChangeInFairValueOfTheDerivativeAsset"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNonoperatingIncomeExpense_7c0d0a7b-771f-4937-bc84-15ccccbd7dc9" xlink:to="loc_cbstf_ChangeInFairValueOfTheDerivativeAsset_3e5f1cd5-f61a-46cf-82cd-b6a3b2a9ea57" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://cannabistcompany.com/role/NetAssetsHeldForSaleDisclosureofLongLivedAssetsHeldforSaleDetails" xlink:type="simple" xlink:href="cbstf-20250331.xsd#NetAssetsHeldForSaleDisclosureofLongLivedAssetsHeldforSaleDetails"/>
  <link:calculationLink xlink:role="http://cannabistcompany.com/role/NetAssetsHeldForSaleDisclosureofLongLivedAssetsHeldforSaleDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_84c9152e-c258-4c15-83ef-e9b66059b34e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbstf_DisposalGroupIncludingDiscontinuedOperationLeaseLiabilities_9d3538d9-0217-4277-b586-4843b302e494" xlink:href="cbstf-20250331.xsd#cbstf_DisposalGroupIncludingDiscontinuedOperationLeaseLiabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_84c9152e-c258-4c15-83ef-e9b66059b34e" xlink:to="loc_cbstf_DisposalGroupIncludingDiscontinuedOperationLeaseLiabilities_9d3538d9-0217-4277-b586-4843b302e494" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbstf_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndOtherLiabilities_b34bf5c4-fc89-4ade-8884-eb151a5fe6e0" xlink:href="cbstf-20250331.xsd#cbstf_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndOtherLiabilities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_84c9152e-c258-4c15-83ef-e9b66059b34e" xlink:to="loc_cbstf_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndOtherLiabilities_b34bf5c4-fc89-4ade-8884-eb151a5fe6e0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_6c0c6f06-b3a0-41ef-bbb9-03874935a286" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbstf_DisposalGroupIncludingDiscontinuedOperationRightOfUseAssetsCurrent_5e6af23b-aa48-4049-9a97-5ff775fe9829" xlink:href="cbstf-20250331.xsd#cbstf_DisposalGroupIncludingDiscontinuedOperationRightOfUseAssetsCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_6c0c6f06-b3a0-41ef-bbb9-03874935a286" xlink:to="loc_cbstf_DisposalGroupIncludingDiscontinuedOperationRightOfUseAssetsCurrent_5e6af23b-aa48-4049-9a97-5ff775fe9829" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationPrepaidAndOtherAssetsCurrent_510adba5-ce40-4417-bd2d-c63597607eb8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationPrepaidAndOtherAssetsCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_6c0c6f06-b3a0-41ef-bbb9-03874935a286" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationPrepaidAndOtherAssetsCurrent_510adba5-ce40-4417-bd2d-c63597607eb8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cbstf_DisposalGroupIncludingDiscontinuedOperationRightOfUseAssetsFinanceLeasesNet_3ec07ef6-0bcf-4ad3-8301-dd229a764af7" xlink:href="cbstf-20250331.xsd#cbstf_DisposalGroupIncludingDiscontinuedOperationRightOfUseAssetsFinanceLeasesNet"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_6c0c6f06-b3a0-41ef-bbb9-03874935a286" xlink:to="loc_cbstf_DisposalGroupIncludingDiscontinuedOperationRightOfUseAssetsFinanceLeasesNet_3ec07ef6-0bcf-4ad3-8301-dd229a764af7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents_af4c6bd9-610b-469e-a1cf-75f7fd0e0e90" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_6c0c6f06-b3a0-41ef-bbb9-03874935a286" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents_af4c6bd9-610b-469e-a1cf-75f7fd0e0e90" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationInventory1_7a74f714-7619-4367-a733-f679abb68d00" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationInventory1"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_6c0c6f06-b3a0-41ef-bbb9-03874935a286" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationInventory1_7a74f714-7619-4367-a733-f679abb68d00" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment_2ea4e6bb-697e-4eea-9bd2-c27c346ef2bd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_6c0c6f06-b3a0-41ef-bbb9-03874935a286" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment_2ea4e6bb-697e-4eea-9bd2-c27c346ef2bd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationIntangibleAssets_700143ab-23f4-4cc2-bc2e-e44ebb33c9fe" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationIntangibleAssets"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_6c0c6f06-b3a0-41ef-bbb9-03874935a286" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationIntangibleAssets_700143ab-23f4-4cc2-bc2e-e44ebb33c9fe" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet_cc42c7e2-2ab6-4630-84df-eba21b27ec08" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_6c0c6f06-b3a0-41ef-bbb9-03874935a286" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet_cc42c7e2-2ab6-4630-84df-eba21b27ec08" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
