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    <link:loc xlink:type="locator" xlink:label="loc_mbcp_IncreaseDecreaseInOtherSundryLiabilitiesAndNonControllingInterests" xlink:href="000432-2025-12-31.xsd#mbcp_IncreaseDecreaseInOtherSundryLiabilitiesAndNonControllingInterests"/>
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    <link:label id="lab_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss_019bbcba-0ad6-7151-b256-bf51b132d31a_totalLabel_pt" xlink:label="lab_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="pt">Imposto sobre o rendimento relativo às componentes de outro rendimento integral que serão reclassificadas nos resultados</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss"/>
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    <link:label id="lab_mbcp_ExpensesOnIssuanceOfConvertibleInstruments_label_pt" xlink:label="lab_mbcp_ExpensesOnIssuanceOfConvertibleInstruments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="pt">Expenses On Issuance Of Convertible Instruments</link:label>
    <link:label id="lab_mbcp_ExpensesOnIssuanceOfConvertibleInstruments_documentation_pt" xlink:label="lab_mbcp_ExpensesOnIssuanceOfConvertibleInstruments" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="pt">Expenses On Issuance Of Convertible Instruments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mbcp_ExpensesOnIssuanceOfConvertibleInstruments" xlink:href="000432-2025-12-31.xsd#mbcp_ExpensesOnIssuanceOfConvertibleInstruments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mbcp_ExpensesOnIssuanceOfConvertibleInstruments" xlink:to="lab_mbcp_ExpensesOnIssuanceOfConvertibleInstruments" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInOperatingActivities_019b215d-3f93-7b3a-b958-5fda80787eec_totalLabel_pt" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="pt">Fluxos de caixa de (utilizados em) atividades de exploração</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivities"/>
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    <link:label id="lab_mbcp_ImpairmentLossRecognisedInOtherComprehensiveIncomeNetOfReversals_label_pt" xlink:label="lab_mbcp_ImpairmentLossRecognisedInOtherComprehensiveIncomeNetOfReversals" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="pt">Impairment Loss Recognised In Other Comprehensive Income, Net Of Reversals</link:label>
    <link:label id="lab_mbcp_ImpairmentLossRecognisedInOtherComprehensiveIncomeNetOfReversals_documentation_pt" xlink:label="lab_mbcp_ImpairmentLossRecognisedInOtherComprehensiveIncomeNetOfReversals" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="pt">Impairment Loss Recognised In Other Comprehensive Income, Net Of Reversals</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mbcp_ImpairmentLossRecognisedInOtherComprehensiveIncomeNetOfReversals" xlink:href="000432-2025-12-31.xsd#mbcp_ImpairmentLossRecognisedInOtherComprehensiveIncomeNetOfReversals"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mbcp_ImpairmentLossRecognisedInOtherComprehensiveIncomeNetOfReversals" xlink:to="lab_mbcp_ImpairmentLossRecognisedInOtherComprehensiveIncomeNetOfReversals" xlink:type="arc" order="1"/>
    <link:label id="lab_mbcp_AdjustmentsForIncreaseDecreaseInLoansAndAdvancesToBanksRepayableOnDemand_label_pt" xlink:label="lab_mbcp_AdjustmentsForIncreaseDecreaseInLoansAndAdvancesToBanksRepayableOnDemand" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="pt">Adjustments For Increase (Decrease) In Loans And Advances To Banks Repayable On Demand</link:label>
    <link:label id="lab_mbcp_AdjustmentsForIncreaseDecreaseInLoansAndAdvancesToBanksRepayableOnDemand_documentation_pt" xlink:label="lab_mbcp_AdjustmentsForIncreaseDecreaseInLoansAndAdvancesToBanksRepayableOnDemand" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="pt">Adjustments For Increase (Decrease) In Loans And Advances To Banks Repayable On Demand</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mbcp_AdjustmentsForIncreaseDecreaseInLoansAndAdvancesToBanksRepayableOnDemand" xlink:href="000432-2025-12-31.xsd#mbcp_AdjustmentsForIncreaseDecreaseInLoansAndAdvancesToBanksRepayableOnDemand"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mbcp_AdjustmentsForIncreaseDecreaseInLoansAndAdvancesToBanksRepayableOnDemand" xlink:to="lab_mbcp_AdjustmentsForIncreaseDecreaseInLoansAndAdvancesToBanksRepayableOnDemand" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss_019bbcba-def6-7a65-b5e8-c347c530971a_totalLabel_pt" xlink:label="lab_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="pt">Imposto sobre o rendimento relativo às componentes de outro rendimento integral que não serão reclassificadas nos resultados</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss"/>
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    <link:label id="lab_ifrs-full_OperatingExpense_019b215d-3f92-7427-883f-030a15164b5f_totalLabel_pt" xlink:label="lab_ifrs-full_OperatingExpense" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="pt">Despesas operacionais</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OperatingExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OperatingExpense"/>
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    <link:label id="lab_mbcp_ProceedsFromMaturityOfFinancialInstrumentsClassifiedAsInvestingActivities_label_pt" xlink:label="lab_mbcp_ProceedsFromMaturityOfFinancialInstrumentsClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="pt">Proceeds From Maturity Of Financial Instruments, Classified As Investing Activities</link:label>
    <link:label id="lab_mbcp_ProceedsFromMaturityOfFinancialInstrumentsClassifiedAsInvestingActivities_documentation_pt" xlink:label="lab_mbcp_ProceedsFromMaturityOfFinancialInstrumentsClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="pt">Proceeds From Maturity Of Financial Instruments, Classified As Investing Activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mbcp_ProceedsFromMaturityOfFinancialInstrumentsClassifiedAsInvestingActivities" xlink:href="000432-2025-12-31.xsd#mbcp_ProceedsFromMaturityOfFinancialInstrumentsClassifiedAsInvestingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mbcp_ProceedsFromMaturityOfFinancialInstrumentsClassifiedAsInvestingActivities" xlink:to="lab_mbcp_ProceedsFromMaturityOfFinancialInstrumentsClassifiedAsInvestingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents_019b215d-3f92-7827-a5cd-a5754a0f3ed2_totalLabel_pt" xlink:label="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="pt">Aumento (diminuição) de caixa e equivalentes de caixa</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseInCashAndCashEquivalents"/>
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    <link:label id="lab_mbcp_NetIncomeForTheYearAttributableToBanksShareholders_label_pt" xlink:label="lab_mbcp_NetIncomeForTheYearAttributableToBanksShareholders" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="pt">Resultado líquido do exercício atribuível aos acionistas do Banco</link:label>
    <link:label id="lab_mbcp_NetIncomeForTheYearAttributableToBanksShareholders_documentation_pt" xlink:label="lab_mbcp_NetIncomeForTheYearAttributableToBanksShareholders" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="pt">Net Income For The Year Attributable To Bank's Shareholders</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mbcp_NetIncomeForTheYearAttributableToBanksShareholders" xlink:href="000432-2025-12-31.xsd#mbcp_NetIncomeForTheYearAttributableToBanksShareholders"/>
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    <link:label id="lab_mbcp_DepositsAtCentralBanks_019b215d-3f92-7ba8-8d5b-8bb2cc9ea103_periodStartLabel_pt" xlink:label="lab_mbcp_DepositsAtCentralBanks" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="pt">Deposits At Central Banks</link:label>
    <link:label id="lab_mbcp_DepositsAtCentralBanks_019b215d-3f92-7be3-b112-ffce58d397ba_periodEndLabel_pt" xlink:label="lab_mbcp_DepositsAtCentralBanks" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="pt">Deposits At Central Banks</link:label>
    <link:label id="lab_mbcp_DepositsAtCentralBanks_label_pt" xlink:label="lab_mbcp_DepositsAtCentralBanks" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="pt">Deposits At Central Banks</link:label>
    <link:label id="lab_mbcp_DepositsAtCentralBanks_documentation_pt" xlink:label="lab_mbcp_DepositsAtCentralBanks" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="pt">Deposits At Central Banks</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mbcp_DepositsAtCentralBanks" xlink:href="000432-2025-12-31.xsd#mbcp_DepositsAtCentralBanks"/>
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    <link:label id="lab_ifrs-full_CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition_019b215d-3f92-74e9-b067-9c78e0f2994d_periodStartLabel_pt" xlink:label="lab_ifrs-full_CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="pt">Caixa e equivalentes de caixa se diferentes da demonstração da posição financeira</link:label>
    <link:label id="lab_ifrs-full_CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition_019b215d-3f92-79ec-a8c4-609b1f7ce197_periodEndLabel_pt" xlink:label="lab_ifrs-full_CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="pt">Caixa e equivalentes de caixa se diferentes da demonstração da posição financeira</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition"/>
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    <link:label id="lab_mbcp_ReservesAndRetainedEarnings_label_pt" xlink:label="lab_mbcp_ReservesAndRetainedEarnings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="pt">Reserves and Retained earnings [Member]</link:label>
    <link:label id="lab_mbcp_ReservesAndRetainedEarnings_documentation_pt" xlink:label="lab_mbcp_ReservesAndRetainedEarnings" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="pt">Reserves and Retained earnings</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mbcp_ReservesAndRetainedEarnings" xlink:href="000432-2025-12-31.xsd#mbcp_ReservesAndRetainedEarnings"/>
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    <link:label id="lab_mbcp_ProceedsFromIssuanceOfBonds_label_pt" xlink:label="lab_mbcp_ProceedsFromIssuanceOfBonds" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="pt">Proceeds From Issuance Of Bonds</link:label>
    <link:label id="lab_mbcp_ProceedsFromIssuanceOfBonds_documentation_pt" xlink:label="lab_mbcp_ProceedsFromIssuanceOfBonds" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="pt">Proceeds From Issuance Of Bonds</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mbcp_ProceedsFromIssuanceOfBonds" xlink:href="000432-2025-12-31.xsd#mbcp_ProceedsFromIssuanceOfBonds"/>
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    <link:label id="lab_ifrs-full_Cash_019b215d-3f92-736d-a161-cde826c3e23b_periodStartLabel_pt" xlink:label="lab_ifrs-full_Cash" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="pt">Cash</link:label>
    <link:label id="lab_ifrs-full_Cash_019b215d-3f92-784e-b117-d7b405a3aa45_periodEndLabel_pt" xlink:label="lab_ifrs-full_Cash" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="pt">Cash</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Cash" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_Cash"/>
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    <link:label id="lab_mbcp_IncreaseDecreaseThroughTransferToLegalReserveEquity_label_pt" xlink:label="lab_mbcp_IncreaseDecreaseThroughTransferToLegalReserveEquity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="pt">Increase (Decrease) Through Transfer To Legal Reserve, Equity</link:label>
    <link:label id="lab_mbcp_IncreaseDecreaseThroughTransferToLegalReserveEquity_documentation_pt" xlink:label="lab_mbcp_IncreaseDecreaseThroughTransferToLegalReserveEquity" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="pt">Increase (Decrease) Through Transfer To Legal Reserve, Equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mbcp_IncreaseDecreaseThroughTransferToLegalReserveEquity" xlink:href="000432-2025-12-31.xsd#mbcp_IncreaseDecreaseThroughTransferToLegalReserveEquity"/>
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    <link:label id="lab_ifrs-full_CashFlowsFromUsedInOperations_019b215d-3f92-7cd7-9f4a-f5c6e986285b_totalLabel_pt" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperations" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="pt">Fluxos de caixa de (utilizados em) unidades operacionais</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperations" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperations"/>
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    <link:label id="lab_ifrs-full_InterestRevenueExpense_019b215d-3f93-7486-87e2-d3cd0ac779e7_totalLabel_pt" xlink:label="lab_ifrs-full_InterestRevenueExpense" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="pt">Rendimento (despesas) de juros</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestRevenueExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_InterestRevenueExpense"/>
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    <link:label id="lab_mbcp_AdjustmentsForDecreaseIncreaseInLoansAndAdvancesRepayableOnDemandToCustomers_label_pt" xlink:label="lab_mbcp_AdjustmentsForDecreaseIncreaseInLoansAndAdvancesRepayableOnDemandToCustomers" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="pt">Adjustments For Decrease (Increase) In Loans And Advances Repayable On Demand To Customers</link:label>
    <link:label id="lab_mbcp_AdjustmentsForDecreaseIncreaseInLoansAndAdvancesRepayableOnDemandToCustomers_documentation_pt" xlink:label="lab_mbcp_AdjustmentsForDecreaseIncreaseInLoansAndAdvancesRepayableOnDemandToCustomers" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="pt">Adjustments For Decrease (Increase) In Loans And Advances Repayable On Demand To Customers</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mbcp_AdjustmentsForDecreaseIncreaseInLoansAndAdvancesRepayableOnDemandToCustomers" xlink:href="000432-2025-12-31.xsd#mbcp_AdjustmentsForDecreaseIncreaseInLoansAndAdvancesRepayableOnDemandToCustomers"/>
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