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  <xsd:element abstract="true" id="fmst_AgentWarrantsExpiringMarch132026Member" name="AgentWarrantsExpiringMarch132026Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_AgentWarrantsExpiringMarch312026Member" name="AgentWarrantsExpiringMarch312026Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_AgentWarrantsExpiringMarch312028Member" name="AgentWarrantsExpiringMarch312028Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_AgentWarrantsExpiringNovember142026Member" name="AgentWarrantsExpiringNovember142026Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_AgentWarrantsMember" name="AgentWarrantsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_AllowanceAccountForCreditLossesOfFinancialAssetsAtEndOfPeriod" name="AllowanceAccountForCreditLossesOfFinancialAssetsAtEndOfPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="fmst_AllowanceCapitalLossesMember" name="AllowanceCapitalLossesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_AmountOfFundsPaidFromCompletionOfArrangement" name="AmountOfFundsPaidFromCompletionOfArrangement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="fmst_AthabascaPropertiesMember" name="AthabascaPropertiesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_BarnardPromissoryNoteMember" name="BarnardPromissoryNoteMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_Canada1Member" name="Canada1Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_CashFindersFeesPaid" name="CashFindersFeesPaid" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_ChangeInFairValueOfDerivativeSpinoutTransaction" name="ChangeInFairValueOfDerivativeSpinoutTransaction" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_ClassOfWarrantAndRightExercisableExercisePrice" name="ClassOfWarrantAndRightExercisableExercisePrice" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType" xbrli:periodType="instant"/>
  <xsd:element id="fmst_ClassOfWarrantOrRightCancelled" name="ClassOfWarrantOrRightCancelled" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_ClassOfWarrantOrRightCancelledExercisePrice" name="ClassOfWarrantOrRightCancelledExercisePrice" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType" xbrli:periodType="instant"/>
  <xsd:element id="fmst_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" name="ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType" xbrli:periodType="instant"/>
  <xsd:element id="fmst_ClassOfWarrantOrRightExercisedDuringPeriod" name="ClassOfWarrantOrRightExercisedDuringPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_ClassOfWarrantOrRightExercisedExercisePrice" name="ClassOfWarrantOrRightExercisedExercisePrice" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_ClassOfWarrantOrRightGranted" name="ClassOfWarrantOrRightGranted" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_ClassOfWarrantOrRightGrantedExercisePrice" name="ClassOfWarrantOrRightGrantedExercisePrice" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_ClassOfWarrantOrRightGrantedInPeriod" name="ClassOfWarrantOrRightGrantedInPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_ClassOfWarrantOrRightGrantedValue" name="ClassOfWarrantOrRightGrantedValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight1" name="ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight1" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/>
  <xsd:element id="fmst_ClassOfWarrantOrRightOutstanding1" name="ClassOfWarrantOrRightOutstanding1" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/>
  <xsd:element id="fmst_ClassOfWarrantOrRightPriceAtValuationDate" name="ClassOfWarrantOrRightPriceAtValuationDate" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType" xbrli:periodType="instant"/>
  <xsd:element id="fmst_ClassOfWarrantsOrRightWeightedAverageRemainingLife" name="ClassOfWarrantsOrRightWeightedAverageRemainingLife" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_ClassOfWarrantsOrRightsOutstandingValue" name="ClassOfWarrantsOrRightsOutstandingValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="fmst_CommitmentToIncurExpenses" name="CommitmentToIncurExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="fmst_CommonSharesMember" name="CommonSharesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_ConsultingExpense" name="ConsultingExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_ConsultingPersonnelMember" name="ConsultingPersonnelMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_CostOfIssuanceOfShares" name="CostOfIssuanceOfShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="fmst_CumulativeExplorationAndDevelopmentExpensesMember" name="CumulativeExplorationAndDevelopmentExpensesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_CurrentAndFormerDirectorsOfficersAndCompaniesControlledByThemMember" name="CurrentAndFormerDirectorsOfficersAndCompaniesControlledByThemMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_DeferredGainOnSpinOutTransaction" name="DeferredGainOnSpinOutTransaction" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="fmst_DenisonMinesCorpMember" name="DenisonMinesCorpMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_DisclosureOfDerecognitionOfFinancialAssetsAndFinancialLiabilitiesExplanatory" name="DisclosureOfDerecognitionOfFinancialAssetsAndFinancialLiabilitiesExplanatory" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_DisclosureOfDetailedInformationAboutExplorationExpendituresTextBlock" name="DisclosureOfDetailedInformationAboutExplorationExpendituresTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_DisclosureOfDetailedInformationAboutIncomeTaxProvisionTextBlock" name="DisclosureOfDetailedInformationAboutIncomeTaxProvisionTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_DisclosureOfDetailedInformationAboutShorttermLoansPayableTextBlock" name="DisclosureOfDetailedInformationAboutShorttermLoansPayableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_DisclosureOfDetailedInformationAboutTradePayableAndAccruedLiabilitiesTextBlock" name="DisclosureOfDetailedInformationAboutTradePayableAndAccruedLiabilitiesTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_DisclosureOfDetailedInformationAboutWarrantTransactionsTextBlock" name="DisclosureOfDetailedInformationAboutWarrantTransactionsTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_DisclosureOfFlowThroughLiabilityTextBlock" name="DisclosureOfFlowThroughLiabilityTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_DisclosureOfFlowthroughSharesExplanatory" name="DisclosureOfFlowthroughSharesExplanatory" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_DisclosureOfIndirectMeasurementOfFairValueOfWarrantsGrantedDuringPeriodTextBlock" name="DisclosureOfIndirectMeasurementOfFairValueOfWarrantsGrantedDuringPeriodTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_DisclosureOfMarketableSecuritiesTextBlock" name="DisclosureOfMarketableSecuritiesTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_DisclosureOfNatureAndContinuanceOfOperationsTextBlock" name="DisclosureOfNatureAndContinuanceOfOperationsTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_DisclosureOfNetAssetsTransferredInSpinoutTransactionsTextBlock" name="DisclosureOfNetAssetsTransferredInSpinoutTransactionsTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_DisclosureOfOutstandingWarrantsTextBlock" name="DisclosureOfOutstandingWarrantsTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_DisclosureOfShareIssueCostsExplanatory" name="DisclosureOfShareIssueCostsExplanatory" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_DisclosureOfShorttermLoansPayableTextBlock" name="DisclosureOfShorttermLoansPayableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_DisclosureOfSignificantAccountingPoliciesAbstract" name="DisclosureOfSignificantAccountingPoliciesAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_DisclosureOfSpinOutTransactionTextBlock" name="DisclosureOfSpinOutTransactionTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_DisclosureOfTransactionWithKeyManagementPersonnelTextBlock" name="DisclosureOfTransactionWithKeyManagementPersonnelTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_DisclosureOfValuationOfEquityUnitsIssuedInPrivatePlacementsExplanatory" name="DisclosureOfValuationOfEquityUnitsIssuedInPrivatePlacementsExplanatory" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_DisclsoureOfNewAccountingStandardsIssuedAndEffectiveExplanatory" name="DisclsoureOfNewAccountingStandardsIssuedAndEffectiveExplanatory" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_DividendYieldMember" name="DividendYieldMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_DocumentAndEntityInformation" name="DocumentAndEntityInformation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_EvaluationAndExplorationAssetsAcquisitionCostsImpairment" name="EvaluationAndExplorationAssetsAcquisitionCostsImpairment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_EvaluationAndExplorationAssetsAcquisitionCostsOthers" name="EvaluationAndExplorationAssetsAcquisitionCostsOthers" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_ExercisePriceMember" name="ExercisePriceMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_ExercisePriceOfWarrantsOrRights" name="ExercisePriceOfWarrantsOrRights" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType" xbrli:periodType="instant"/>
  <xsd:element id="fmst_ExercisePriceShareOptionsGranted" name="ExercisePriceShareOptionsGranted" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_ExpectedLifeMember" name="ExpectedLifeMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_ExplorationAndEvaluationAssetsAcquisitionAndExplorationCostsIncurred" name="ExplorationAndEvaluationAssetsAcquisitionAndExplorationCostsIncurred" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="fmst_ExplorationAndEvaluationAssetsAcquisitionCosts" name="ExplorationAndEvaluationAssetsAcquisitionCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="fmst_ExplorationAndEvaluationAssetsAssayExpense" name="ExplorationAndEvaluationAssetsAssayExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_ExplorationAndEvaluationAssetsCostRecovery" name="ExplorationAndEvaluationAssetsCostRecovery" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_ExplorationAndEvaluationAssetsDivestedFromSpinoffTransaction" name="ExplorationAndEvaluationAssetsDivestedFromSpinoffTransaction" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_ExplorationAndEvaluationAssetsDrillingExpense" name="ExplorationAndEvaluationAssetsDrillingExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_ExplorationAndEvaluationAssetsExplorationCostsDivestedFromSpinoffTransaction" name="ExplorationAndEvaluationAssetsExplorationCostsDivestedFromSpinoffTransaction" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_ExplorationAndEvaluationAssetsExplorationCostsIncurred" name="ExplorationAndEvaluationAssetsExplorationCostsIncurred" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="fmst_ExplorationAndEvaluationAssetsFieldWorkExpense" name="ExplorationAndEvaluationAssetsFieldWorkExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_ExplorationAndEvaluationAssetsGeologicalAndConsulting" name="ExplorationAndEvaluationAssetsGeologicalAndConsulting" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_ExplorationAndEvaluationAssetsSurveyExpense" name="ExplorationAndEvaluationAssetsSurveyExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_ExtinguishmentOfDebtAmount1" name="ExtinguishmentOfDebtAmount1" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_FairValueMember" name="FairValueMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_FairValueOfOptionMember" name="FairValueOfOptionMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_FairValueOfSharesAcquiredResultingFromASpinoutTransaction" name="FairValueOfSharesAcquiredResultingFromASpinoutTransaction" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_FindersAndAdvisoryFeesMember" name="FindersAndAdvisoryFeesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_FindersFee" name="FindersFee" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="fmst_FindersWarrantsIssuedIn2026PrivatePlacementMember" name="FindersWarrantsIssuedIn2026PrivatePlacementMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_FindersWarrantsIssuedInNonbrokered2025PrivatePlacementMember" name="FindersWarrantsIssuedInNonbrokered2025PrivatePlacementMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_FindersWarrantsMember" name="FindersWarrantsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_FlowthroughExplorationCommitmentsFulfilled" name="FlowthroughExplorationCommitmentsFulfilled" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="fmst_FlowthroughPremiumLiabilities" name="FlowthroughPremiumLiabilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="fmst_FlowthroughPremiumLiability" name="FlowthroughPremiumLiability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="fmst_FlowthroughPremiumsPrivatePlacements" name="FlowthroughPremiumsPrivatePlacements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_FlowthroughSharesIssuedIn2025NonbrokeredPrivatePlacementMember" name="FlowthroughSharesIssuedIn2025NonbrokeredPrivatePlacementMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_FlowthroughSharesIssuedIn2026PrivatePlacementMember" name="FlowthroughSharesIssuedIn2026PrivatePlacementMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_FlowthroughSharesIssuedInPrivatePlacementMember" name="FlowthroughSharesIssuedInPrivatePlacementMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_ForemostMember" name="ForemostMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_ForemostOption2Member" name="ForemostOption2Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_ForemostOptionMember" name="ForemostOptionMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_ForemostPromissoryNoteMember" name="ForemostPromissoryNoteMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_ForemostRsu1Member" name="ForemostRsu1Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_ForemostRsuMember" name="ForemostRsuMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_ForemostWarrantMember" name="ForemostWarrantMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_GainLossAtOptionSettlement" name="GainLossAtOptionSettlement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_GainLossOnForgivenessOfDebt" name="GainLossOnForgivenessOfDebt" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_GainLossOnInvestmentInAssociate" name="GainLossOnInvestmentInAssociate" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_GainLossOnInvestmentInMarketableSecurities" name="GainLossOnInvestmentInMarketableSecurities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_GainLossOnLongtermInvestment" name="GainLossOnLongtermInvestment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_GainLossOnSpinoutTransaction" name="GainLossOnSpinoutTransaction" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_GainLossOnSublease" name="GainLossOnSublease" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_GainLossOnWriteOffOfLoan" name="GainLossOnWriteOffOfLoan" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_GovernmentGrantAgreement" name="GovernmentGrantAgreement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="fmst_GrassRiverPropertyMember" name="GrassRiverPropertyMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_HatchetLakeMember" name="HatchetLakeMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_ImpairmentOfFinancialAssetsAtAmortizedCostExplanatory" name="ImpairmentOfFinancialAssetsAtAmortizedCostExplanatory" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_IncentiveWarrantMember" name="IncentiveWarrantMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_IncentiveWarrantsExpiringApril292026Member" name="IncentiveWarrantsExpiringApril292026Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_IncentiveWarrantsExpiringMarch132026Member" name="IncentiveWarrantsExpiringMarch132026Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_IncreaseDecreaseForPurchaseOfEvaluationAndExplorationAssets" name="IncreaseDecreaseForPurchaseOfEvaluationAndExplorationAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_IncreaseDecreaseInEquityEvaluationAndExplorationAssetsOptionAgreement" name="IncreaseDecreaseInEquityEvaluationAndExplorationAssetsOptionAgreement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_IncreaseDecreaseInNumberOfSharesHeldAsAnInvestment" name="IncreaseDecreaseInNumberOfSharesHeldAsAnInvestment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_IncreaseDecreaseInNumberOfSharesOutstandingAcquisitionOfExplorationAndEvaluationAssets" name="IncreaseDecreaseInNumberOfSharesOutstandingAcquisitionOfExplorationAndEvaluationAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_IncreaseDecreaseInNumberOfSharesOutstandingAcquisitions" name="IncreaseDecreaseInNumberOfSharesOutstandingAcquisitions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_IncreaseDecreaseInNumberOfSharesOutstandingExplorationAndEvaluationAssetsOptionAgreement" name="IncreaseDecreaseInNumberOfSharesOutstandingExplorationAndEvaluationAssetsOptionAgreement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_IncreaseDecreaseInNumberOfSharesOutstandingIssuedForServices" name="IncreaseDecreaseInNumberOfSharesOutstandingIssuedForServices" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_IncreaseDecreaseInNumberOfSharesOutstandingSharebasedPaymentTransactions" name="IncreaseDecreaseInNumberOfSharesOutstandingSharebasedPaymentTransactions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_IncreaseDecreaseInNumberOfSharesOutstandingSharesIssuedOptionsExercised" name="IncreaseDecreaseInNumberOfSharesOutstandingSharesIssuedOptionsExercised" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_IncreaseDecreaseInNumberOfSharesOutstandingSharesIssuedRsusRedeemed" name="IncreaseDecreaseInNumberOfSharesOutstandingSharesIssuedRsusRedeemed" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_IncreaseDecreaseInNumberOfSharesOutstandingSharesIssuedSharePurchaseFindersWarrants" name="IncreaseDecreaseInNumberOfSharesOutstandingSharesIssuedSharePurchaseFindersWarrants" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/>
  <xsd:element id="fmst_IncreaseDecreaseInNumberOfSharesOutstandingSharesIssuedWarrantsExercised" name="IncreaseDecreaseInNumberOfSharesOutstandingSharesIssuedWarrantsExercised" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_IncreaseDecreaseThroughCashlessExerciseOfOptionsEquity" name="IncreaseDecreaseThroughCashlessExerciseOfOptionsEquity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_IncreaseDecreaseThroughOptionsExpiredAndForfeited" name="IncreaseDecreaseThroughOptionsExpiredAndForfeited" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_IncreaseDecreaseThroughTransferOfNetAssetsPursuantToSpinout" name="IncreaseDecreaseThroughTransferOfNetAssetsPursuantToSpinout" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_IncreaseDecreaseThroughWarrantExpirations" name="IncreaseDecreaseThroughWarrantExpirations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_IncreaseInNumberOfSharesOutstandingExerciseOfWarrants" name="IncreaseInNumberOfSharesOutstandingExerciseOfWarrants" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_InterestAndTaxesPaid" name="InterestAndTaxesPaid" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_InvestmentInAssociateMember" name="InvestmentInAssociateMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_IssueOfEquityRsusRedeemed" name="IssueOfEquityRsusRedeemed" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_IssueOfEquitySharesIssuedForServices" name="IssueOfEquitySharesIssuedForServices" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_JeanLakeAndZoroLithiumPropertiesMember" name="JeanLakeAndZoroLithiumPropertiesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_JeanLakePropertyMember" name="JeanLakePropertyMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_JolLithiumPropertyMember" name="JolLithiumPropertyMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_LacSimardSouthPropertyMember" name="LacSimardSouthPropertyMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_LegalAndFilingFees" name="LegalAndFilingFees" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_LoanAgreementWithRelatedPartyMember" name="LoanAgreementWithRelatedPartyMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_LoanPayableOnDemandUnsecuredWith10InterestPerAnnumAndNoFixedTermMember" name="LoanPayableOnDemandUnsecuredWith10InterestPerAnnumAndNoFixedTermMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_LongTermPrepaidExplorationAndEvaluation" name="LongTermPrepaidExplorationAndEvaluation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_ManagementPersonnelMember" name="ManagementPersonnelMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_ManitobaGrantMember" name="ManitobaGrantMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_ManitobaMember" name="ManitobaMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_MarketTargetPriceShareOptionsGranted" name="MarketTargetPriceShareOptionsGranted" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_MarketableSecuritiesMember" name="MarketableSecuritiesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_MarketableSecurityTotalNumberOfSharesOutstanding" name="MarketableSecurityTotalNumberOfSharesOutstanding" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/>
  <xsd:element id="fmst_NetAssetsCarryingAmount" name="NetAssetsCarryingAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="fmst_NetAssetsTransferredAtFairValue" name="NetAssetsTransferredAtFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="fmst_NetForeignExchangeGainLoss" name="NetForeignExchangeGainLoss" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_NetOperatingLossesAvailableForFuturePeriodMember" name="NetOperatingLossesAvailableForFuturePeriodMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_NetSmelterRoyaltyReturnPercentage" name="NetSmelterRoyaltyReturnPercentage" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="fmst_NoncapitalLossesAvailableForFuturePeriodMember" name="NoncapitalLossesAvailableForFuturePeriodMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_NoncapitalLossesMember" name="NoncapitalLossesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_NoncurrentNotesPayable" name="NoncurrentNotesPayable" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="fmst_NoncurrentPrepaidExpensesAndDeposits" name="NoncurrentPrepaidExpensesAndDeposits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="fmst_NonflowthroughUnitsIssuedInPrivatePlacementMember" name="NonflowthroughUnitsIssuedInPrivatePlacementMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_NoteToFinancialStatementDetailsTextual" name="NoteToFinancialStatementDetailsTextual" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_NotesToFinancialStatements" name="NotesToFinancialStatements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_NotesToFinancialStatementsAbstract" name="NotesToFinancialStatementsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_NumberOfCommonSharesPerUnit" name="NumberOfCommonSharesPerUnit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/>
  <xsd:element id="fmst_NumberOfOptionsReceivedInExchange" name="NumberOfOptionsReceivedInExchange" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/>
  <xsd:element id="fmst_NumberOfOptionsToBeTransferredAndExchanged" name="NumberOfOptionsToBeTransferredAndExchanged" nillable="true" substitutionGroup="xbrli:item" type="xbrli:pureItemType" xbrli:periodType="instant"/>
  <xsd:element id="fmst_NumberOfOtherEquityInstrumentsVestedInSharebasedPaymentArrangement" name="NumberOfOtherEquityInstrumentsVestedInSharebasedPaymentArrangement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_NumberOfReportableOperatingSegments" name="NumberOfReportableOperatingSegments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_NumberOfShareOptionsExercisedCashlessInSharebasedPaymentArrangement" name="NumberOfShareOptionsExercisedCashlessInSharebasedPaymentArrangement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_NumberOfShareOptionsForfeitedOrExpiredInSharebasedPaymentArrangement" name="NumberOfShareOptionsForfeitedOrExpiredInSharebasedPaymentArrangement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_NumberOfShareOptionsVestedUnderSharebasedArrangements" name="NumberOfShareOptionsVestedUnderSharebasedArrangements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_NumberOfSharesHeldAsInvestment" name="NumberOfSharesHeldAsInvestment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/>
  <xsd:element id="fmst_NumberOfSharesIssuedDuringPeriod" name="NumberOfSharesIssuedDuringPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_NumberOfUnitsToBeTransferredAndExchanged" name="NumberOfUnitsToBeTransferredAndExchanged" nillable="true" substitutionGroup="xbrli:item" type="xbrli:pureItemType" xbrli:periodType="instant"/>
  <xsd:element id="fmst_NumberOfUnvestedStockOptionsOutstanding" name="NumberOfUnvestedStockOptionsOutstanding" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/>
  <xsd:element id="fmst_NumberOfWarrantsIssuedDuringThePeriod" name="NumberOfWarrantsIssuedDuringThePeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_NumberOfWarrantsPerUnit" name="NumberOfWarrantsPerUnit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/>
  <xsd:element id="fmst_OptionAgreementCashPayment" name="OptionAgreementCashPayment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="fmst_OptionAgreementNetSmelterRoyaltyPercentage" name="OptionAgreementNetSmelterRoyaltyPercentage" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="fmst_OptionExpiredOrForfeitedMember" name="OptionExpiredOrForfeitedMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_OptionModificationMember" name="OptionModificationMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_OptionsIssuedToADirectorOfficerAndConsultantMember" name="OptionsIssuedToADirectorOfficerAndConsultantMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_OptionsIssuedToConsultantFourMember" name="OptionsIssuedToConsultantFourMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_OptionsIssuedToConsultantOneMember" name="OptionsIssuedToConsultantOneMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_OptionsIssuedToConsultantThreeMember" name="OptionsIssuedToConsultantThreeMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_OptionsIssuedToConsultantTwoMember" name="OptionsIssuedToConsultantTwoMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_OptionsIssuedToDirectorMember" name="OptionsIssuedToDirectorMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_OptionsIssuedToDirectorsAndAConsultantMember" name="OptionsIssuedToDirectorsAndAConsultantMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_OptionsIssuedToDirectorsAndOfficersMember" name="OptionsIssuedToDirectorsAndOfficersMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_OptionsIssuedToOfficerMember" name="OptionsIssuedToOfficerMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_OptionsIssuedToOfficersMember" name="OptionsIssuedToOfficersMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_PaymentsForExtinguishmentOfDebt" name="PaymentsForExtinguishmentOfDebt" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_PaymentsForShareIssueCostsNet" name="PaymentsForShareIssueCostsNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_PaymentsToSpinOutSubsidiary" name="PaymentsToSpinOutSubsidiary" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_PegNorthPropertyMember" name="PegNorthPropertyMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_PercentOfFundsRequiredForTheDebtNoteUponCompletionOfArrangement" name="PercentOfFundsRequiredForTheDebtNoteUponCompletionOfArrangement" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="fmst_PolicyTable" name="PolicyTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_PrincipalRepaymentsOnBorrowings" name="PrincipalRepaymentsOnBorrowings" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_ProceedsFromExerciseOfWarrantsDueToRelatedParty" name="ProceedsFromExerciseOfWarrantsDueToRelatedParty" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_ProceedsFromExerciseOfWarrantsNet" name="ProceedsFromExerciseOfWarrantsNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_ProceedsFromSubscriptionsReceivedInAdvance" name="ProceedsFromSubscriptionsReceivedInAdvance" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_QualifyingCee" name="QualifyingCee" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_ReceiptOfSubleasePayments" name="ReceiptOfSubleasePayments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_ReclassificationIntoFinancialAssets" name="ReclassificationIntoFinancialAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_RecoveryOfFlowthroughPremiumLiability" name="RecoveryOfFlowthroughPremiumLiability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_RepaymentsOfCurrentBorrowingInterest" name="RepaymentsOfCurrentBorrowingInterest" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_RestrictedShareUnitsGrantedInFebruary122025Member" name="RestrictedShareUnitsGrantedInFebruary122025Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_RestrictedShareUnitsGrantedInJuly22025Member" name="RestrictedShareUnitsGrantedInJuly22025Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_RestrictedShareUnitsGrantedInNovember152024Member" name="RestrictedShareUnitsGrantedInNovember152024Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_RestrictedShareUnitsGrantedInOctober272025Member" name="RestrictedShareUnitsGrantedInOctober272025Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_RestrictedShareUnitsVestingOnApril12026Member" name="RestrictedShareUnitsVestingOnApril12026Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_RestrictedShareUnitsVestingOnApril12027Member" name="RestrictedShareUnitsVestingOnApril12027Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_RestrictedShareUnitsVestingOnApril12028Member" name="RestrictedShareUnitsVestingOnApril12028Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
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  <xsd:element id="fmst_WarrantsIssuedForShareIssueCosts" name="WarrantsIssuedForShareIssueCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
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  <xsd:element abstract="true" id="fmst_WarrantsIssuedInNonbrokeredPrivatePlacementMember" name="WarrantsIssuedInNonbrokeredPrivatePlacementMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_WarrantsIssuedInPublicOfferingMember" name="WarrantsIssuedInPublicOfferingMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_WeightedAverageExercisePriceOfWarrantsOrRights" name="WeightedAverageExercisePriceOfWarrantsOrRights" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType" xbrli:periodType="instant"/>
  <xsd:element id="fmst_WeightedAverageTradingPrice" name="WeightedAverageTradingPrice" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="fmst_WinstonPropertyMember" name="WinstonPropertyMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fmst_WriteoffOfExplorationPrepaidExpenses" name="WriteoffOfExplorationPrepaidExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="fmst_WriteoffOfTradePayables" name="WriteoffOfTradePayables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-10-capital-stock-and-reserves-fair-value-of-stock-option-assumptions-details" name="statement-statement-note-10-capital-stock-and-reserves-fair-value-of-stock-option-assumptions-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-10-capital-stock-and-reserves-restricted-share-unit-transactions-details" name="statement-statement-note-10-capital-stock-and-reserves-restricted-share-unit-transactions-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-10-capital-stock-and-reserves-stock-option-transactions-details" name="statement-statement-note-10-capital-stock-and-reserves-stock-option-transactions-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-10-capital-stock-and-reserves-summary-of-outstanding-warrants-details" name="statement-statement-note-10-capital-stock-and-reserves-summary-of-outstanding-warrants-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-10-capital-stock-and-reserves-summary-of-warrant-transactions-details" name="statement-statement-note-10-capital-stock-and-reserves-summary-of-warrant-transactions-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-10-capital-stock-and-reserves-tables" name="statement-statement-note-10-capital-stock-and-reserves-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-10-capital-stock-and-reserves-warrant-derivative-liability-details" name="statement-statement-note-10-capital-stock-and-reserves-warrant-derivative-liability-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-10-capital-stock-and-reserves-weighted-average-warrant-assumptions-details" name="statement-statement-note-10-capital-stock-and-reserves-weighted-average-warrant-assumptions-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-11-related-party-transactions-tables" name="statement-statement-note-11-related-party-transactions-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-11-related-party-transactions-transaction-between-related-parties-details" name="statement-statement-note-11-related-party-transactions-transaction-between-related-parties-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-11-related-party-transactions-transaction-with-key-management-personnel-details" name="statement-statement-note-11-related-party-transactions-transaction-with-key-management-personnel-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-12-segmented-information-geographic-information-details" name="statement-statement-note-12-segmented-information-geographic-information-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-12-segmented-information-tables" name="statement-statement-note-12-segmented-information-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-14-income-taxes-components-of-income-tax-provision-details" name="statement-statement-note-14-income-taxes-components-of-income-tax-provision-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-14-income-taxes-deferred-tax-assets-and-liabilities-details" name="statement-statement-note-14-income-taxes-deferred-tax-assets-and-liabilities-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-14-income-taxes-tables" name="statement-statement-note-14-income-taxes-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-14-income-taxes-temporary-differences-and-unused-tax-losses-details" name="statement-statement-note-14-income-taxes-temporary-differences-and-unused-tax-losses-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-16-commitments-flow-through-liability-details" name="statement-statement-note-16-commitments-flow-through-liability-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-16-commitments-tables" name="statement-statement-note-16-commitments-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-17-spinout-transaction-net-assets-transferred-in-spinout-transaction-details" name="statement-statement-note-17-spinout-transaction-net-assets-transferred-in-spinout-transaction-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-17-spinout-transaction-tables" name="statement-statement-note-17-spinout-transaction-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-4-investment-in-associate-investments-accounted-for-using-equity-method-details" name="statement-statement-note-4-investment-in-associate-investments-accounted-for-using-equity-method-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-4-investment-in-associate-summary-of-rio-grande-statements-details" name="statement-statement-note-4-investment-in-associate-summary-of-rio-grande-statements-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-4-investment-in-associate-tables" name="statement-statement-note-4-investment-in-associate-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-5-marketable-securities-schedule-of-marketable-securities-details" name="statement-statement-note-5-marketable-securities-schedule-of-marketable-securities-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-5-marketable-securities-tables" name="statement-statement-note-5-marketable-securities-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-7-exploration-and-evaluation-assets-exploration-expenditures-details" name="statement-statement-note-7-exploration-and-evaluation-assets-exploration-expenditures-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-7-exploration-and-evaluation-assets-tables" name="statement-statement-note-7-exploration-and-evaluation-assets-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-8-accounts-payable-and-accrued-liabilities-accounts-payable-and-accrued-liabilities-details" name="statement-statement-note-8-accounts-payable-and-accrued-liabilities-accounts-payable-and-accrued-liabilities-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-8-accounts-payable-and-accrued-liabilities-tables" name="statement-statement-note-8-accounts-payable-and-accrued-liabilities-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-9-term-loans-payable-shortterm-loans-payable-details" name="statement-statement-note-9-term-loans-payable-shortterm-loans-payable-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-note-9-term-loans-payable-tables" name="statement-statement-note-9-term-loans-payable-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fmst_statement-statement-significant-accounting-policies-policies" name="statement-statement-significant-accounting-policies-policies" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
</xsd:schema>
