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    <link:label id="lab_ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities_6ffc30bb-fba8-41ee-96d7-70516ef9bdc1_negatedTerseLabel_es" xlink:label="lab_ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Proceeds from borrowings</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities" xlink:to="lab_ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForGainsLossesOnFairValueAdjustmentInvestmentProperty_2423a030-7572-4dde-8d5a-ccdb67f1f2fd_negatedTerseLabel_es" xlink:label="lab_ifrs-full_AdjustmentsForGainsLossesOnFairValueAdjustmentInvestmentProperty" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Adjustments for gains (losses) on fair value adjustment, investment property</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForGainsLossesOnFairValueAdjustmentInvestmentProperty" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_AdjustmentsForGainsLossesOnFairValueAdjustmentInvestmentProperty"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForGainsLossesOnFairValueAdjustmentInvestmentProperty" xlink:to="lab_ifrs-full_AdjustmentsForGainsLossesOnFairValueAdjustmentInvestmentProperty" xlink:type="arc" order="1"/>
    <link:label id="lab_mer_ProfitLossAttributableToOwnersOfParentMember_label_es" xlink:label="lab_mer_ProfitLossAttributableToOwnersOfParentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Profit Loss Attributable To Owners Of Parent [Member]</link:label>
    <link:label id="lab_mer_ProfitLossAttributableToOwnersOfParentMember_documentation_es" xlink:label="lab_mer_ProfitLossAttributableToOwnersOfParentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">This member stands for a component of equity representing Profit Loss Attributable To Owners Of Parent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mer_ProfitLossAttributableToOwnersOfParentMember" xlink:href="959800L8KD863DP30X04-2023-12-31.xsd#mer_ProfitLossAttributableToOwnersOfParentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mer_ProfitLossAttributableToOwnersOfParentMember" xlink:to="lab_mer_ProfitLossAttributableToOwnersOfParentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_mer_CollectionOfDividendsOrRefundsOfIssuancePremiumOfAssociatedCompanies_label_es" xlink:label="lab_mer_CollectionOfDividendsOrRefundsOfIssuancePremiumOfAssociatedCompanies" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Collection of dividends or refunds of issuance premium of associated companies</link:label>
    <link:label id="lab_mer_CollectionOfDividendsOrRefundsOfIssuancePremiumOfAssociatedCompanies_documentation_es" xlink:label="lab_mer_CollectionOfDividendsOrRefundsOfIssuancePremiumOfAssociatedCompanies" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Collection of dividends or refunds of issuance premium of associated companies</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mer_CollectionOfDividendsOrRefundsOfIssuancePremiumOfAssociatedCompanies" xlink:href="959800L8KD863DP30X04-2023-12-31.xsd#mer_CollectionOfDividendsOrRefundsOfIssuancePremiumOfAssociatedCompanies"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mer_CollectionOfDividendsOrRefundsOfIssuancePremiumOfAssociatedCompanies" xlink:to="lab_mer_CollectionOfDividendsOrRefundsOfIssuancePremiumOfAssociatedCompanies" xlink:type="arc" order="1"/>
    <link:label id="lab_mer_ChangeInFairValueOfAllFinancialInstruments_label_es" xlink:label="lab_mer_ChangeInFairValueOfAllFinancialInstruments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Change in fair value of all financial instruments</link:label>
    <link:label id="lab_mer_ChangeInFairValueOfAllFinancialInstruments_documentation_es" xlink:label="lab_mer_ChangeInFairValueOfAllFinancialInstruments" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Change in fair value of all financial instruments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mer_ChangeInFairValueOfAllFinancialInstruments" xlink:href="959800L8KD863DP30X04-2023-12-31.xsd#mer_ChangeInFairValueOfAllFinancialInstruments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mer_ChangeInFairValueOfAllFinancialInstruments" xlink:to="lab_mer_ChangeInFairValueOfAllFinancialInstruments" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInWorkingCapital_0e0905d5-559a-4048-add1-8644cb09deb8_negatedTotalLabel_es" xlink:label="lab_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Increase (decrease) in working capital</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_IncreaseDecreaseInWorkingCapital"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:to="lab_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables_76550b48-ab7b-45b9-99cd-191487c6c3b8_negatedTerseLabel_es" xlink:label="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Adjustments for increase (decrease) in trade and other payables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables" xlink:to="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables" xlink:type="arc" order="1"/>
    <link:label id="lab_mer_ContributionsFromDiscontinuedFinancialActivities_label_es" xlink:label="lab_mer_ContributionsFromDiscontinuedFinancialActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Contributions from discontinued financial activities</link:label>
    <link:label id="lab_mer_ContributionsFromDiscontinuedFinancialActivities_documentation_es" xlink:label="lab_mer_ContributionsFromDiscontinuedFinancialActivities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Contributions from discontinued financial activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mer_ContributionsFromDiscontinuedFinancialActivities" xlink:href="959800L8KD863DP30X04-2023-12-31.xsd#mer_ContributionsFromDiscontinuedFinancialActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mer_ContributionsFromDiscontinuedFinancialActivities" xlink:to="lab_mer_ContributionsFromDiscontinuedFinancialActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_mer_OtherEquityInstruments_label_es" xlink:label="lab_mer_OtherEquityInstruments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Other Equity Instruments</link:label>
    <link:label id="lab_mer_OtherEquityInstruments_documentation_es" xlink:label="lab_mer_OtherEquityInstruments" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Other Equity Instruments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mer_OtherEquityInstruments" xlink:href="959800L8KD863DP30X04-2023-12-31.xsd#mer_OtherEquityInstruments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mer_OtherEquityInstruments" xlink:to="lab_mer_OtherEquityInstruments" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GainsLossesOnFairValueAdjustmentInvestmentProperty_fe4259eb-a10a-4985-92d4-5221ef8db681_negatedLabel_es" xlink:label="lab_ifrs-full_GainsLossesOnFairValueAdjustmentInvestmentProperty" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Ganancias (pérdidas) por ajuste del valor razonable, inversiones inmobiliarias</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnFairValueAdjustmentInvestmentProperty" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_GainsLossesOnFairValueAdjustmentInvestmentProperty"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainsLossesOnFairValueAdjustmentInvestmentProperty" xlink:to="lab_ifrs-full_GainsLossesOnFairValueAdjustmentInvestmentProperty" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForFinanceIncome_dc550e0d-1a29-42a1-a4a0-6c93ee7c3e7b_negatedTerseLabel_es" xlink:label="lab_ifrs-full_AdjustmentsForFinanceIncome" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Adjustments for finance income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForFinanceIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_AdjustmentsForFinanceIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForFinanceIncome" xlink:to="lab_ifrs-full_AdjustmentsForFinanceIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_mer_DisclosureOfChangesInConsolidationPerimeterTextBlock_label_es" xlink:label="lab_mer_DisclosureOfChangesInConsolidationPerimeterTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Disclosure of changes in consolidation perimeter [Text Block]</link:label>
    <link:label id="lab_mer_DisclosureOfChangesInConsolidationPerimeterTextBlock_documentation_es" xlink:label="lab_mer_DisclosureOfChangesInConsolidationPerimeterTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">The disclosure of the changes in the consolidation perimeter.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mer_DisclosureOfChangesInConsolidationPerimeterTextBlock" xlink:href="959800L8KD863DP30X04-2023-12-31.xsd#mer_DisclosureOfChangesInConsolidationPerimeterTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mer_DisclosureOfChangesInConsolidationPerimeterTextBlock" xlink:to="lab_mer_DisclosureOfChangesInConsolidationPerimeterTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_mer_ShareBasedPayments_5a59dc6e-0ffb-41b6-8a29-7999c30a4e22_totalLabel_es" xlink:label="lab_mer_ShareBasedPayments" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Share-based payments</link:label>
    <link:label id="lab_mer_ShareBasedPayments_label_es" xlink:label="lab_mer_ShareBasedPayments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Share-based payments</link:label>
    <link:label id="lab_mer_ShareBasedPayments_documentation_es" xlink:label="lab_mer_ShareBasedPayments" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Share-based payments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mer_ShareBasedPayments" xlink:href="959800L8KD863DP30X04-2023-12-31.xsd#mer_ShareBasedPayments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mer_ShareBasedPayments" xlink:to="lab_mer_ShareBasedPayments" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares_00591497-3905-45f4-bf2a-12bfe13682d6_negatedTerseLabel_es" xlink:label="lab_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Payments to acquire or redeem entity's shares</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_PaymentsToAcquireOrRedeemEntitysShares"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" xlink:to="lab_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" xlink:type="arc" order="1"/>
    <link:label id="lab_mer_CashAndCashEquivalentsIncorporatedInTheTransactionDiscontinuedOperations_label_es" xlink:label="lab_mer_CashAndCashEquivalentsIncorporatedInTheTransactionDiscontinuedOperations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Cash and cash equivalents incorporated in the transaction, discontinued operations</link:label>
    <link:label id="lab_mer_CashAndCashEquivalentsIncorporatedInTheTransactionDiscontinuedOperations_documentation_es" xlink:label="lab_mer_CashAndCashEquivalentsIncorporatedInTheTransactionDiscontinuedOperations" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Cash and cash equivalents incorporated in the transaction, discontinued operations</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mer_CashAndCashEquivalentsIncorporatedInTheTransactionDiscontinuedOperations" xlink:href="959800L8KD863DP30X04-2023-12-31.xsd#mer_CashAndCashEquivalentsIncorporatedInTheTransactionDiscontinuedOperations"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mer_CashAndCashEquivalentsIncorporatedInTheTransactionDiscontinuedOperations" xlink:to="lab_mer_CashAndCashEquivalentsIncorporatedInTheTransactionDiscontinuedOperations" xlink:type="arc" order="1"/>
    <link:label id="lab_mer_DistributionOfResults_2c988528-488e-4a3f-82fd-61aa54111de0_netLabel_es" xlink:label="lab_mer_DistributionOfResults" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Distribution of results</link:label>
    <link:label id="lab_mer_DistributionOfResults_label_es" xlink:label="lab_mer_DistributionOfResults" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Distribution of results</link:label>
    <link:label id="lab_mer_DistributionOfResults_documentation_es" xlink:label="lab_mer_DistributionOfResults" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">The amount of distribution of results</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mer_DistributionOfResults" xlink:href="959800L8KD863DP30X04-2023-12-31.xsd#mer_DistributionOfResults"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mer_DistributionOfResults" xlink:to="lab_mer_DistributionOfResults" xlink:type="arc" order="1"/>
    <link:label id="lab_mer_IncreaseDecreaseThroughShareBasedPaymentTransactionsStockPlanEquity_77b26013-709f-43b7-b983-3bf9fde95582_totalLabel_es" xlink:label="lab_mer_IncreaseDecreaseThroughShareBasedPaymentTransactionsStockPlanEquity" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Increase (decrease) through share-based payment transactions Stock Plan, equity</link:label>
    <link:label id="lab_mer_IncreaseDecreaseThroughShareBasedPaymentTransactionsStockPlanEquity_label_es" xlink:label="lab_mer_IncreaseDecreaseThroughShareBasedPaymentTransactionsStockPlanEquity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Increase (decrease) through share-based payment transactions Stock Plan, equity</link:label>
    <link:label id="lab_mer_IncreaseDecreaseThroughShareBasedPaymentTransactionsStockPlanEquity_documentation_es" xlink:label="lab_mer_IncreaseDecreaseThroughShareBasedPaymentTransactionsStockPlanEquity" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">The increase (decrease) in equity resulting from share-based payment transactions. [Refer: Equity]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mer_IncreaseDecreaseThroughShareBasedPaymentTransactionsStockPlanEquity" xlink:href="959800L8KD863DP30X04-2023-12-31.xsd#mer_IncreaseDecreaseThroughShareBasedPaymentTransactionsStockPlanEquity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mer_IncreaseDecreaseThroughShareBasedPaymentTransactionsStockPlanEquity" xlink:to="lab_mer_IncreaseDecreaseThroughShareBasedPaymentTransactionsStockPlanEquity" xlink:type="arc" order="1"/>
    <link:label id="lab_mer_CancellationOfInterestRateDerivatives_label_es" xlink:label="lab_mer_CancellationOfInterestRateDerivatives" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Cancellation of interest rate derivatives</link:label>
    <link:label id="lab_mer_CancellationOfInterestRateDerivatives_documentation_es" xlink:label="lab_mer_CancellationOfInterestRateDerivatives" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Cancellation of interest rate derivatives</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mer_CancellationOfInterestRateDerivatives" xlink:href="959800L8KD863DP30X04-2023-12-31.xsd#mer_CancellationOfInterestRateDerivatives"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_mer_CancellationOfInterestRateDerivatives" xlink:to="lab_mer_CancellationOfInterestRateDerivatives" xlink:type="arc" order="1"/>
    <link:label id="lab_mer_ProceedsAndPaymentsFromFinancialLiabilities_1acd51cb-1094-4d58-88d8-cea3d505ad91_totalLabel_es" xlink:label="lab_mer_ProceedsAndPaymentsFromFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Proceeds and payments from financial liabilities</link:label>
    <link:label id="lab_mer_ProceedsAndPaymentsFromFinancialLiabilities_label_es" xlink:label="lab_mer_ProceedsAndPaymentsFromFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Proceeds and payments from financial liabilities</link:label>
    <link:label id="lab_mer_ProceedsAndPaymentsFromFinancialLiabilities_documentation_es" xlink:label="lab_mer_ProceedsAndPaymentsFromFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Proceeds and payments from financial liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mer_ProceedsAndPaymentsFromFinancialLiabilities" xlink:href="959800L8KD863DP30X04-2023-12-31.xsd#mer_ProceedsAndPaymentsFromFinancialLiabilities"/>
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    <link:label id="lab_ifrs-full_DepreciationAndAmortisationExpense_baff96dc-0663-47c4-8836-c3e8d9666814_negatedTerseLabel_es" xlink:label="lab_ifrs-full_DepreciationAndAmortisationExpense" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Depreciation and amortisation expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DepreciationAndAmortisationExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_DepreciationAndAmortisationExpense"/>
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    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughTreasuryShareTransactions_cb0bfc54-7f86-48a1-840e-be7852506aaa_totalLabel_es" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughTreasuryShareTransactions" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Incremento (decremento) por transacciones con acciones propias, patrimonio neto</link:label>
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    <link:label id="lab_ifrs-full_PurchaseOfInvestmentProperty_e61b881d-2479-4713-a2c6-05b9eae75d0e_negatedTerseLabel_es" xlink:label="lab_ifrs-full_PurchaseOfInvestmentProperty" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Purchase of investment property</link:label>
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    <link:label id="lab_ifrs-full_AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod_9ca8b8ef-ca43-4e58-81cb-712a7de91ef4_negatedTerseLabel_es" xlink:label="lab_ifrs-full_AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Adjustments for undistributed profits of investments accounted for using equity method</link:label>
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    <link:label id="lab_mer_ProfitLossAttributableToOwnersOfTheParent_label_es" xlink:label="lab_mer_ProfitLossAttributableToOwnersOfTheParent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Profit (loss) attributable to owners of the parent</link:label>
    <link:label id="lab_mer_ProfitLossAttributableToOwnersOfTheParent_documentation_es" xlink:label="lab_mer_ProfitLossAttributableToOwnersOfTheParent" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Profit (loss) attributable to owners of the parent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mer_ProfitLossAttributableToOwnersOfTheParent" xlink:href="959800L8KD863DP30X04-2023-12-31.xsd#mer_ProfitLossAttributableToOwnersOfTheParent"/>
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    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity_488d6b3a-12a0-457a-aa57-1ec36358a3fb_totalLabel_es" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Incremento (decremento) por otros cambios, patrimonio neto</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity"/>
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    <link:label id="lab_mer_OtherEquityHolderContributions_documentation_es" xlink:label="lab_mer_OtherEquityHolderContributions" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Other equity holder contributions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mer_OtherEquityHolderContributions" xlink:href="959800L8KD863DP30X04-2023-12-31.xsd#mer_OtherEquityHolderContributions"/>
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    <link:label id="lab_mer_InterimDividendMember_label_es" xlink:label="lab_mer_InterimDividendMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Interim dividend [Member]</link:label>
    <link:label id="lab_mer_InterimDividendMember_documentation_es" xlink:label="lab_mer_InterimDividendMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">This member stands for the interim dividends.</link:label>
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    <link:label id="lab_ifrs-full_CashFlowsFromUsedInOperations_b6dd9e42-c450-495c-9252-57aa55616335_negatedTotalLabel_es" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperations" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Cash flows from (used in) operations</link:label>
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    <link:label id="lab_mer_OtherEquityHolderContributionsMember_documentation_es" xlink:label="lab_mer_OtherEquityHolderContributionsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Other equity holder contributions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_mer_OtherEquityHolderContributionsMember" xlink:href="959800L8KD863DP30X04-2023-12-31.xsd#mer_OtherEquityHolderContributionsMember"/>
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    <link:label id="lab_mer_PerimeterVariations_documentation_es" xlink:label="lab_mer_PerimeterVariations" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="es">Perimeter variations</link:label>
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