2022-12-31 0001063259 2022-01-01 2022-12-31 0001063259 dnn:Range6Member 2022-01-01 2022-12-31 0001063259 dnn:Range5Member 2022-01-01 2022-12-31 0001063259 dnn:Range4Member 2022-01-01 2022-12-31 0001063259 dnn:Range3Member 2022-01-01 2022-12-31 0001063259 dnn:Range2Member 2022-01-01 2022-12-31 0001063259 dnn:Range1Member 2022-01-01 2022-12-31 0001063259 ifrs-full:OtherPropertyPlantAndEquipmentMember ifrs-full:TopOfRangeMember 2022-01-01 2022-12-31 0001063259 ifrs-full:OtherPropertyPlantAndEquipmentMember ifrs-full:BottomOfRangeMember 2022-01-01 2022-12-31 0001063259 ifrs-full:BuildingsMember ifrs-full:TopOfRangeMember 2022-01-01 2022-12-31 0001063259 ifrs-full:BuildingsMember ifrs-full:BottomOfRangeMember 2022-01-01 2022-12-31 0001063259 dnn:ProductionMachineryAndEquipmentMember ifrs-full:TopOfRangeMember 2022-01-01 2022-12-31 0001063259 dnn:ProductionMachineryAndEquipmentMember ifrs-full:BottomOfRangeMember 2022-01-01 2022-12-31 0001063259 dnn:TradeReceivableMember 2022-12-31 0001063259 dnn:TradeAndOtherReceivablesBeforeEclAllowanceMember 2022-12-31 0001063259 dnn:SundryReceivableMember 2022-12-31 0001063259 dnn:SalesTaxReceivablesMember 2022-12-31 0001063259 dnn:ReceivablesInMLJVAndMWJVMember 2022-12-31 0001063259 dnn:TradeReceivableMember 2021-12-31 0001063259 dnn:TradeAndOtherReceivablesBeforeEclAllowanceMember 2021-12-31 0001063259 dnn:SundryReceivableMember 2021-12-31 0001063259 dnn:SalesTaxReceivablesMember 2021-12-31 0001063259 dnn:ReceivablesInMLJVAndMWJVMember 2021-12-31 0001063259 dnn:TradePayablesMember 2022-12-31 0001063259 dnn:PayablesinMLJVandMWJVMember 2022-12-31 0001063259 dnn:OtherPayablesMember 2022-12-31 0001063259 dnn:TradePayablesMember 2021-12-31 0001063259 dnn:PayablesinMLJVandMWJVMember 2021-12-31 0001063259 dnn:OtherPayablesMember 2021-12-31 0001063259 2021-03-03 0001063259 dnn:RevenueCommitmentsYearTwoMember dnn:ClosedMinesServicesMember dnn:EnvironmentalServicesMember 2022-01-01 2022-12-31 0001063259 dnn:RevenueCommitmentsYearThreeMember dnn:ClosedMinesServicesMember dnn:EnvironmentalServicesMember 2022-01-01 2022-12-31 0001063259 dnn:RevenueCommitmentsYearOneMember dnn:ClosedMinesServicesMember dnn:EnvironmentalServicesMember 2022-01-01 2022-12-31 0001063259 dnn:RevenueCommitmentsYearFourMember dnn:ClosedMinesServicesMember dnn:EnvironmentalServicesMember 2022-01-01 2022-12-31 0001063259 dnn:RevenueCommitmentsAfterYearFourMember dnn:ClosedMinesServicesMember dnn:EnvironmentalServicesMember 2022-01-01 2022-12-31 0001063259 dnn:RevenueCommitmentsYearTwoMember dnn:ClosedMinesGroupMember 2022-01-01 2022-12-31 0001063259 dnn:RevenueCommitmentsYearThreeMember dnn:ClosedMinesGroupMember 2022-01-01 2022-12-31 0001063259 dnn:RevenueCommitmentsYearOneMember dnn:ClosedMinesGroupMember 2022-01-01 2022-12-31 0001063259 dnn:RevenueCommitmentsYearFourMember dnn:ClosedMinesGroupMember 2022-01-01 2022-12-31 0001063259 dnn:RevenueCommitmentsAfterYearFourMember dnn:ClosedMinesGroupMember 2022-01-01 2022-12-31 0001063259 dnn:ClosedMinesServicesMember dnn:EnvironmentalServicesMember 2022-01-01 2022-12-31 0001063259 dnn:ClosedMinesGroupMember 2022-01-01 2022-12-31 0001063259 dnn:RestrictedCashInvestmentsMember 2022-12-31 0001063259 dnn:RestrictedCashCashAndCashEquivalentsMember 2022-12-31 0001063259 dnn:LettersOfCreditAdditionalCollateralMember 2022-12-31 0001063259 dnn:CreditFacilityPledgedAssetsMember 2022-12-31 0001063259 dnn:RestrictedCashInvestmentsMember 2021-12-31 0001063259 dnn:RestrictedCashCashAndCashEquivalentsMember 2021-12-31 0001063259 dnn:ReclamationLetterOfCreditCollateralMember 2021-12-31 0001063259 dnn:LettersOfCreditFacilityPledgedAssetsMember 2021-12-31 0001063259 dnn:LettersOfCreditAdditionalCollateralMember 2021-12-31 0001063259 dnn:CreditFacilityPledgedAssetsMember 2021-12-31 0001063259 dnn:WaterburyLakeUraniumLPMember 2016-09-01 2016-09-30 0001063259 dnn:DenisonMinesIncMember 2021-01-01 2021-12-31 0001063259 dnn:DenisonMinesBermudaILtdMember 2021-01-01 2021-12-31 0001063259 dnn:DenisonABHoldingsCorpMember 2021-01-01 2021-12-31 0001063259 dnn:CanadaInc9373721Member 2021-01-01 2021-12-31 0001063259 dnn:JCUMember 2022-11-01 2022-11-30 0001063259 dnn:WheelerRiverJointVentureMember dnn:JCUMember 2022-01-01 2022-12-31 0001063259 dnn:WheelerRiverJointVentureMember dnn:JCUMember 2022-01-01 2022-12-31 0001063259 dnn:UEXCorporationMember dnn:JCUMember 2022-01-01 2022-12-31 0001063259 dnn:OranoCanadaMember dnn:JCUMember 2022-01-01 2022-12-31 0001063259 dnn:MillenniumProjectMember dnn:JCUMember 2022-01-01 2022-12-31 0001063259 dnn:KiggavikProjectMember dnn:JCUMember 2022-01-01 2022-12-31 0001063259 dnn:ChristieLakeMember dnn:JCUMember 2022-01-01 2022-12-31 0001063259 dnn:CamecoCorporationMember dnn:JCUMember 2022-01-01 2022-12-31 0001063259 dnn:MillenniumProjectMember 2022-01-01 2022-12-31 0001063259 dnn:KiggavikProjectMember 2022-01-01 2022-12-31 0001063259 dnn:ChristieLakeMember 2022-01-01 2022-12-31 0001063259 dnn:DenisonWaterburyCorpMember 2021-11-30 2021-11-30 0001063259 dnn:WheelerRiverJointVentureMember dnn:JCUMember 2021-08-03 2021-08-03 0001063259 dnn:DenisonWaterburyCorpMember 2021-05-31 2021-05-31 0001063259 ifrs-full:TopOfRangeMember dnn:KWULPLimitedPartnerMember 2021-01-01 2021-12-31 0001063259 ifrs-full:BottomOfRangeMember dnn:KWULPLimitedPartnerMember 2021-01-01 2021-12-31 0001063259 dnn:WLUCMember 2021-01-01 2021-12-31 0001063259 dnn:WaterburyLakeUraniumLPMember 2021-01-01 2021-12-31 0001063259 dnn:WaterburyLakeUraniumCorpMember 2021-01-01 2021-12-31 0001063259 dnn:KoreaWaterburyUraniumLimitedPartnershipMember 2021-01-01 2021-12-31 0001063259 dnn:JCUMember 2021-01-01 2021-12-31 0001063259 dnn:DenisonWaterburyCorpMember 2021-01-01 2021-12-31 0001063259 dnn:SegmentsOperatingMember dnn:MineralPropertiesMember dnn:MiningMember 2022-12-31 0001063259 dnn:SegmentsOperatingMember dnn:MineralPropertiesMember dnn:CorporateAndOtherSegmentMember 2022-12-31 0001063259 dnn:SegmentsOperatingMember dnn:MineralPropertiesMember dnn:ClosedMinesServicesMember 2022-12-31 0001063259 ifrs-full:AccumulatedDepreciationAndAmortisationMember dnn:PlantAndEquipmentRightOfUseMember 2022-12-31 0001063259 ifrs-full:AccumulatedDepreciationAndAmortisationMember dnn:PlantAndEquipmentOwnedMember 2022-12-31 0001063259 ifrs-full:AccumulatedDepreciationAndAmortisationMember dnn:MineralPropertiesMember 2022-12-31 0001063259 dnn:SegmentsOperatingMember dnn:MiningMember 2022-12-31 0001063259 dnn:SegmentsOperatingMember dnn:MineralPropertiesMember 2022-12-31 0001063259 dnn:SegmentsOperatingMember dnn:CorporateAndOtherSegmentMember 2022-12-31 0001063259 dnn:SegmentsOperatingMember dnn:ClosedMinesServicesMember 2022-12-31 0001063259 dnn:PlantAndEquipmentRightOfUseMember dnn:NetBookValueMember 2022-12-31 0001063259 dnn:PlantAndEquipmentRightOfUseMember dnn:MiningPropertyCostMember 2022-12-31 0001063259 dnn:PlantAndEquipmentOwnedMember dnn:NetBookValueMember 2022-12-31 0001063259 dnn:PlantAndEquipmentOwnedMember dnn:MiningPropertyCostMember 2022-12-31 0001063259 dnn:MineralPropertiesMember dnn:NetBookValueMember 2022-12-31 0001063259 dnn:MineralPropertiesMember dnn:MiningPropertyCostMember 2022-12-31 0001063259 ifrs-full:AccumulatedDepreciationAndAmortisationMember 2022-12-31 0001063259 dnn:SegmentsOperatingMember 2022-12-31 0001063259 dnn:NetBookValueMember 2022-12-31 0001063259 dnn:MiningPropertyCostMember 2022-12-31 0001063259 dnn:SegmentsOperatingMember dnn:MineralPropertiesMember dnn:MiningMember 2021-12-31 0001063259 dnn:SegmentsOperatingMember dnn:MineralPropertiesMember dnn:CorporateAndOtherSegmentMember 2021-12-31 0001063259 dnn:SegmentsOperatingMember dnn:MineralPropertiesMember dnn:ClosedMinesServicesMember 2021-12-31 0001063259 ifrs-full:AccumulatedDepreciationAndAmortisationMember dnn:PlantAndEquipmentRightOfUseMember 2021-12-31 0001063259 ifrs-full:AccumulatedDepreciationAndAmortisationMember dnn:PlantAndEquipmentOwnedMember 2021-12-31 0001063259 ifrs-full:AccumulatedDepreciationAndAmortisationMember dnn:MineralPropertiesMember 2021-12-31 0001063259 dnn:SegmentsOperatingMember dnn:MiningMember 2021-12-31 0001063259 dnn:SegmentsOperatingMember dnn:MineralPropertiesMember 2021-12-31 0001063259 dnn:SegmentsOperatingMember dnn:CorporateAndOtherSegmentMember 2021-12-31 0001063259 dnn:SegmentsOperatingMember dnn:ClosedMinesServicesMember 2021-12-31 0001063259 dnn:PlantAndEquipmentRightOfUseMember dnn:NetBookValueMember 2021-12-31 0001063259 dnn:PlantAndEquipmentRightOfUseMember dnn:MiningPropertyCostMember 2021-12-31 0001063259 dnn:PlantAndEquipmentOwnedMember dnn:NetBookValueMember 2021-12-31 0001063259 dnn:PlantAndEquipmentOwnedMember dnn:MiningPropertyCostMember 2021-12-31 0001063259 dnn:MineralPropertiesMember dnn:NetBookValueMember 2021-12-31 0001063259 dnn:MineralPropertiesMember dnn:MiningPropertyCostMember 2021-12-31 0001063259 ifrs-full:AccumulatedDepreciationAndAmortisationMember 2021-12-31 0001063259 dnn:SegmentsOperatingMember 2021-12-31 0001063259 dnn:NetBookValueMember 2021-12-31 0001063259 dnn:MiningPropertyCostMember 2021-12-31 0001063259 ifrs-full:AccumulatedDepreciationAndAmortisationMember dnn:PlantAndEquipmentRightOfUseMember 2020-12-31 0001063259 ifrs-full:AccumulatedDepreciationAndAmortisationMember dnn:PlantAndEquipmentOwnedMember 2020-12-31 0001063259 ifrs-full:AccumulatedDepreciationAndAmortisationMember dnn:MineralPropertiesMember 2020-12-31 0001063259 dnn:PlantAndEquipmentRightOfUseMember dnn:MiningPropertyCostMember 2020-12-31 0001063259 dnn:PlantAndEquipmentOwnedMember dnn:MiningPropertyCostMember 2020-12-31 0001063259 dnn:MineralPropertiesMember dnn:MiningPropertyCostMember 2020-12-31 0001063259 ifrs-full:AccumulatedDepreciationAndAmortisationMember 2020-12-31 0001063259 dnn:MiningPropertyCostMember 2020-12-31 0001063259 ifrs-full:RetainedEarningsMember 2022-01-01 2022-12-31 0001063259 dnn:JCUMember 2021-12-01 2022-11-30 0001063259 ifrs-full:RetainedEarningsMember 2021-01-01 2021-12-31 0001063259 dnn:DenisonWaterburyCorpMember 2022-01-01 2022-12-31 0001063259 dnn:DenisonMinesIncMember 2022-01-01 2022-12-31 0001063259 dnn:DenisonMinesBermudaILtdMember 2022-01-01 2022-12-31 0001063259 dnn:DenisonABHoldingsCorpMember 2022-01-01 2022-12-31 0001063259 dnn:CanadaInc9373721Member 2022-01-01 2022-12-31 0001063259 dnn:LoanObligationsMember 2022-12-31 0001063259 dnn:LeaseObligationsMember 2022-12-31 0001063259 dnn:LoanObligationsMember 2021-12-31 0001063259 dnn:LeaseObligationsMember 2021-12-31 0001063259 dnn:UraniumInvestmentCarryingChargesMember 2022-01-01 2022-12-31 0001063259 dnn:TypesOfInstrumentsMember 2022-01-01 2022-12-31 0001063259 dnn:SharePurchaseWarrantsIssueExpenseMember 2022-01-01 2022-12-31 0001063259 dnn:RecognitionOfProceedsU.iRepaymentAgreementMember 2022-01-01 2022-12-31 0001063259 dnn:ReclamationObligationAdjustmentsMember 2022-01-01 2022-12-31 0001063259 dnn:PhysicalUraniumMember 2022-01-01 2022-12-31 0001063259 dnn:GainLossOtherMember 2022-01-01 2022-12-31 0001063259 dnn:GainLossForeignExchangeMember 2022-01-01 2022-12-31 0001063259 dnn:GainLossDisposalOfPropertyPlantAndEquipmentMember 2022-01-01 2022-12-31 0001063259 dnn:FairValueChangesWarrantsOnInvestmentMember 2022-01-01 2022-12-31 0001063259 dnn:FairValueChangesSharePurchaseWarrantsMember 2022-01-01 2022-12-31 0001063259 dnn:FairValueChangesInvestmentsUraniumMember 2022-01-01 2022-12-31 0001063259 dnn:DebtObligationAdjustmentsMember 2022-01-01 2022-12-31 0001063259 dnn:UraniumInvestmentCarryingChargesMember 2021-01-01 2021-12-31 0001063259 dnn:TypesOfInstrumentsMember 2021-01-01 2021-12-31 0001063259 dnn:SharePurchaseWarrantsIssueExpenseMember 2021-01-01 2021-12-31 0001063259 dnn:RecognitionOfProceedsU.iRepaymentAgreementMember 2021-01-01 2021-12-31 0001063259 dnn:ReclamationObligationAdjustmentsMember 2021-01-01 2021-12-31 0001063259 dnn:GainLossOtherMember 2021-01-01 2021-12-31 0001063259 dnn:GainLossForeignExchangeMember 2021-01-01 2021-12-31 0001063259 dnn:GainLossDisposalOfPropertyPlantAndEquipmentMember 2021-01-01 2021-12-31 0001063259 dnn:FairValueChangesWarrantsOnInvestmentMember 2021-01-01 2021-12-31 0001063259 dnn:FairValueChangesSharePurchaseWarrantsMember 2021-01-01 2021-12-31 0001063259 dnn:FairValueChangesInvestmentsUraniumMember 2021-01-01 2021-12-31 0001063259 dnn:DebtObligationAdjustmentsMember 2021-01-01 2021-12-31 0001063259 dnn:TerminationFeeMember 2022-01-01 2022-12-31 0001063259 dnn:DiscretionaryFeesMember 2022-01-01 2022-12-31 0001063259 dnn:CommissionFeesMember 2022-01-01 2022-12-31 0001063259 dnn:BaseAndVariableFeesMember 2022-01-01 2022-12-31 0001063259 dnn:TerminationFeeMember 2021-07-01 2021-07-31 0001063259 dnn:TerminationFeeMember 2021-01-01 2021-12-31 0001063259 dnn:DiscretionaryFeesMember 2021-01-01 2021-12-31 0001063259 dnn:CommissionFeesMember 2021-01-01 2021-12-31 0001063259 dnn:BaseAndVariableFeesMember 2021-01-01 2021-12-31 0001063259 dnn:SellingExpensesMember 2022-01-01 2022-12-31 0001063259 dnn:SalesRoyaltiesAndNonIncomeTaxMember 2022-01-01 2022-12-31 0001063259 dnn:ReclamationAssetAmortizationMember 2022-01-01 2022-12-31 0001063259 dnn:SellingExpensesMember 2021-01-01 2021-12-31 0001063259 dnn:SalesRoyaltiesAndNonIncomeTaxMember 2021-01-01 2021-12-31 0001063259 dnn:ReclamationAssetAmortizationMember 2021-01-01 2021-12-31 0001063259 dnn:InventoryOfOreInStockpilesMember 2022-12-31 0001063259 dnn:InventoryOfOreInStockpilesMember 2021-12-31 0001063259 dnn:MineAndMillSuppliesMember 2022-12-31 0001063259 dnn:UraniumConcentratesAndWorkInProgressMember 2021-12-31 0001063259 dnn:MineAndMillSuppliesMember 2021-12-31 0001063259 ifrs-full:AccumulatedOtherComprehensiveIncomeMember 2022-01-01 2022-12-31 0001063259 ifrs-full:AccumulatedOtherComprehensiveIncomeMember 2021-01-01 2021-12-31 0001063259 dnn:FinanceIncomeExpenseInterestIncomeMember 2022-01-01 2022-12-31 0001063259 dnn:FinanceIncomeExpenseInterestIncomeMember 2021-01-01 2021-12-31 0001063259 dnn:FinanceIncomeExpenseDebtObligationsMember dnn:LoansLiabilitiesMember 2022-01-01 2022-12-31 0001063259 dnn:FinanceIncomeExpenseDebtObligationsMember dnn:LeaseLiabilitiesCustomMember 2022-01-01 2022-12-31 0001063259 dnn:SupplementFinancialInformationMember 2022-01-01 2022-12-31 0001063259 dnn:FinanceIncomeExpenseInterestExpenseMember 2022-01-01 2022-12-31 0001063259 dnn:FinanceIncomeExpenseDebtObligationsMember 2022-01-01 2022-12-31 0001063259 dnn:FinanceIncomeExpenseAccretionExpenseReclamationObligationsMember 2022-01-01 2022-12-31 0001063259 dnn:FinanceIncomeExpenseAccretionExpensePostEmploymentBenefitsMember 2022-01-01 2022-12-31 0001063259 dnn:FinanceIncomeExpenseAccretionExpenseDeferredRevenueMember 2022-01-01 2022-12-31 0001063259 dnn:FinanceIncomeExpenseDebtObligationsMember dnn:LoansLiabilitiesMember 2021-01-01 2021-12-31 0001063259 dnn:FinanceIncomeExpenseDebtObligationsMember dnn:LeaseLiabilitiesCustomMember 2021-01-01 2021-12-31 0001063259 dnn:SupplementFinancialInformationMember 2021-01-01 2021-12-31 0001063259 dnn:FinanceIncomeExpenseInterestExpenseMember 2021-01-01 2021-12-31 0001063259 dnn:FinanceIncomeExpenseDebtObligationsMember 2021-01-01 2021-12-31 0001063259 dnn:FinanceIncomeExpenseAccretionExpenseReclamationObligationsMember 2021-01-01 2021-12-31 0001063259 dnn:FinanceIncomeExpenseAccretionExpensePostEmploymentBenefitsMember 2021-01-01 2021-12-31 0001063259 dnn:FinanceIncomeExpenseAccretionExpenseDeferredRevenueMember 2021-01-01 2021-12-31 0001063259 ifrs-full:SharePremiumMember 2022-12-31 0001063259 ifrs-full:RetainedEarningsMember 2022-12-31 0001063259 ifrs-full:ClassesOfShareCapitalMember 2022-12-31 0001063259 ifrs-full:AccumulatedOtherComprehensiveIncomeMember 2022-12-31 0001063259 ifrs-full:SharePremiumMember 2021-12-31 0001063259 ifrs-full:RetainedEarningsMember 2021-12-31 0001063259 ifrs-full:ClassesOfShareCapitalMember 2021-12-31 0001063259 ifrs-full:AccumulatedOtherComprehensiveIncomeMember 2021-12-31 0001063259 ifrs-full:SharePremiumMember 2020-12-31 0001063259 ifrs-full:RetainedEarningsMember 2020-12-31 0001063259 ifrs-full:ClassesOfShareCapitalMember 2020-12-31 0001063259 ifrs-full:AccumulatedOtherComprehensiveIncomeMember 2020-12-31 0001063259 dnn:TerminationBenefitsMember 2022-01-01 2022-12-31 0001063259 dnn:ShareBasedCompensationMember 2022-01-01 2022-12-31 0001063259 dnn:SalariesAndShortTermEmployeeBenefitsMember 2022-01-01 2022-12-31 0001063259 dnn:TerminationBenefitsMember 2021-01-01 2021-12-31 0001063259 dnn:ShareBasedCompensationMember 2021-01-01 2021-12-31 0001063259 dnn:SalariesAndShortTermEmployeeBenefitsMember 2021-01-01 2021-12-31 0001063259 ifrs-full:TopOfRangeMember 2021-01-01 2021-12-31 0001063259 ifrs-full:BottomOfRangeMember 2021-01-01 2021-12-31 0001063259 dnn:DeferredIncomeTaxLiabilityMember 2022-12-31 0001063259 dnn:DeferredIncomeTaxLiabilityMember 2021-12-31 0001063259 dnn:DeferredIncomeTaxLiabilityMember 2020-12-31 0001063259 dnn:CLJVTollMillingAPGMember 2022-12-31 0001063259 dnn:CLJVTollMillingAPGMember 2021-12-31 0001063259 dnn:LoansLiabilitiesMember 2021-12-31 0001063259 dnn:LeaseLiabilitiesCustomMember 2021-12-31 0001063259 dnn:LoansLiabilitiesMember 2020-12-31 0001063259 dnn:LeaseLiabilitiesCustomMember 2020-12-31 0001063259 dnn:OperatingOverheadsMiningOtherDevelopmentExpenseMember 2022-01-01 2022-12-31 0001063259 dnn:OperatingOverheadsMillingConversionExpenseMember 2022-01-01 2022-12-31 0001063259 dnn:MineralConcentratesMember 2022-01-01 2022-12-31 0001063259 dnn:CostOfGoodsAndServicesSoldMember 2022-01-01 2022-12-31 0001063259 dnn:OperatingOverheadsMiningOtherDevelopmentExpenseMember 2021-01-01 2021-12-31 0001063259 dnn:OperatingOverheadsMillingConversionExpenseMember 2021-01-01 2021-12-31 0001063259 dnn:MineralConcentratesMember 2021-01-01 2021-12-31 0001063259 dnn:CostOfGoodsAndServicesSoldMember 2021-01-01 2021-12-31 0001063259 dnn:MiningLicenseReceivableNetMember 2022-01-01 2022-12-31 0001063259 dnn:JCUMember 2022-12-31 0001063259 dnn:CashAndCashEquivalentCashMember 2022-12-31 0001063259 dnn:CashAndCashEquivalentCashInJointVenturesMember 2022-12-31 0001063259 dnn:CashAndCashEquivalentCashEquivalentsMember 2022-12-31 0001063259 dnn:JCUMember 2021-12-31 0001063259 dnn:CashAndCashEquivalentCashMember 2021-12-31 0001063259 dnn:CashAndCashEquivalentCashInJointVenturesMember 2021-12-31 0001063259 dnn:CashAndCashEquivalentCashEquivalentsMember 2021-12-31 0001063259 country:CA ifrs-full:TopOfRangeMember 2022-01-01 2022-12-31 0001063259 country:CA ifrs-full:BottomOfRangeMember 2022-01-01 2022-12-31 0001063259 dnn:StockOptionsMember 2022-01-01 2022-12-31 0001063259 dnn:RSUsMember 2022-01-01 2022-12-31 0001063259 dnn:PSUsMember 2022-01-01 2022-12-31 0001063259 dnn:StockOptionsMember 2021-01-01 2021-12-31 0001063259 dnn:RSUsMember 2021-01-01 2021-12-31 0001063259 dnn:PSUsMember 2021-01-01 2021-12-31 0001063259 dnn:MiningOtherDevelopmentExpenseMember 2022-01-01 2022-12-31 0001063259 dnn:MillingConversionExpenseMember 2022-01-01 2022-12-31 0001063259 dnn:GeneralAndAdministrativeMember 2022-01-01 2022-12-31 0001063259 dnn:ExplorationMember 2022-01-01 2022-12-31 0001063259 dnn:EvaluationMember 2022-01-01 2022-12-31 0001063259 dnn:CostOfServicesMember 2022-01-01 2022-12-31 0001063259 dnn:MiningOtherDevelopmentExpenseMember 2021-01-01 2021-12-31 0001063259 dnn:MillingConversionExpenseMember 2021-01-01 2021-12-31 0001063259 dnn:GeneralAndAdministrativeMember 2021-01-01 2021-12-31 0001063259 dnn:ExplorationMember 2021-01-01 2021-12-31 0001063259 dnn:EvaluationMember 2021-01-01 2021-12-31 0001063259 dnn:CostOfServicesMember 2021-01-01 2021-12-31 0001063259 dnn:TwentyTwentyMember 2022-12-31 0001063259 dnn:PerYearFrom2031ThroughTo2041Member 2022-12-31 0001063259 dnn:PerYearFrom2026To2030Member 2022-12-31 0001063259 dnn:PerYearBy2026Member 2022-12-31 0001063259 dnn:StockOptionsMember 2022-12-31 0001063259 dnn:RSUsMember 2022-12-31 0001063259 dnn:PSUsMember 2022-12-31 0001063259 dnn:StockOptionsMember 2021-12-31 0001063259 dnn:RSUsMember 2021-12-31 0001063259 dnn:PSUsMember 2021-12-31 0001063259 dnn:UPCMember 2022-12-31 0001063259 2021-07-19 2021-07-19 0001063259 dnn:ClosedMinesServicesMember 2022-01-01 2022-12-31 0001063259 dnn:CorporateAndOtherSegmentMember 2021-01-01 2021-12-31 0001063259 dnn:ClosedMinesServicesMember 2021-01-01 2021-12-31 0001063259 2022-01-01 2022-01-31 0001063259 2016-11-16 2016-11-16 0001063259 2022-01-31 0001063259 2016-11-16 0001063259 dnn:Range6Member 2022-12-31 0001063259 dnn:Range5Member 2022-12-31 0001063259 dnn:Range4Member 2022-12-31 0001063259 dnn:Range3Member 2022-12-31 0001063259 dnn:Range2Member 2022-12-31 0001063259 dnn:Range1Member 2022-12-31 0001063259 dnn:DefinedBenefitPlans1Member 2022-12-31 0001063259 dnn:DefinedBenefitPlans1Member 2021-12-31 0001063259 dnn:WollyJointVentureMember 2021-01-01 2021-12-31 0001063259 dnn:WheelerRiverJointProjectMember 2021-01-01 2021-12-31 0001063259 dnn:MidwestJointVentureMember 2021-01-01 2021-12-31 0001063259 dnn:McCleanLakeJointVentureMember 2021-01-01 2021-12-31 0001063259 dnn:MannLakeJointVentureMember 2021-01-01 2021-12-31 0001063259 2020-07-27 2020-07-27 0001063259 ifrs-full:ClassesOfShareCapitalMember 2021-03-22 0001063259 ifrs-full:ClassesOfShareCapitalMember 2021-02-19 0001063259 ifrs-full:ClassesOfShareCapitalMember 2021-03-03 0001063259 dnn:MannLakeJointVentureMember 2022-01-01 2022-12-31 0001063259 2016-09-01 2016-09-30 0001063259 2015-11-01 2015-11-30 0001063259 dnn:CreditFacility2022Member 2022-12-31 0001063259 dnn:LettersOfCreditFacilityPledgedAssetsMember 2022-03-31 0001063259 dnn:CreditFacility2022Member 2022-03-31 0001063259 stpr:CA-SK 2022-01-01 2022-12-31 0001063259 dnn:EcoraArrangementMember 2017-02-28 0001063259 dnn:WollyJointVentureMember 2022-01-01 2022-12-31 0001063259 dnn:WheelerRiverJointProjectMember 2022-01-01 2022-12-31 0001063259 dnn:WaterburyLakeUraniumLPMember 2022-01-01 2022-12-31 0001063259 dnn:WaterburyLakeUraniumCorpMember 2022-01-01 2022-12-31 0001063259 dnn:MidwestJointVentureMember 2022-01-01 2022-12-31 0001063259 dnn:McCleanLakeJointVentureMember 2022-01-01 2022-12-31 0001063259 dnn:JohnstonLakeJointVentureMember 2022-01-01 2022-12-31 0001063259 dnn:EquityInstrumentsMember 2021-01-01 2021-12-31 0001063259 dnn:PhysicalUraniumMember 2020-12-31 0001063259 ifrs-full:SharePremiumMember 2022-01-01 2022-12-31 0001063259 ifrs-full:SharePremiumMember 2021-01-01 2021-12-31 0001063259 dnn:CreditFacility2022Member 2022-04-30 0001063259 dnn:CreditFacility2022Member 2022-01-31 0001063259 dnn:LettersOfCreditFacilityPledgedAssetsMember 2022-12-31 0001063259 dnn:MaintenanceOf2021ShelfProspectusAnd2021AtmProgramMember 2022-12-31 0001063259 dnn:SetUpAndMaintenanceOf2021ShelfProspectusAnd2021AtmProgramMember 2021-12-31 0001063259 ifrs-full:ClassesOfShareCapitalMember 2021-02-28 0001063259 ifrs-full:ClassesOfShareCapitalMember 2021-01-31 0001063259 dnn:EquityInstrumentsWarrantsMember dnn:WarrantsReserveMember 2022-12-31 0001063259 dnn:EquityInstrumentsSharesMember dnn:OrdinaryShares1Member 2022-12-31 0001063259 dnn:WarrantsReserveMember 2022-12-31 0001063259 dnn:UraniumMember 2022-12-31 0001063259 dnn:PhysicalUraniumMember 2022-12-31 0001063259 dnn:OrdinaryShares1Member 2022-12-31 0001063259 dnn:EquityInstrumentsWarrantsMember dnn:WarrantsReserveMember 2021-12-31 0001063259 dnn:EquityInstrumentsSharesMember dnn:OrdinaryShares1Member 2021-12-31 0001063259 dnn:WarrantsReserveMember 2021-12-31 0001063259 dnn:UraniumMember 2021-12-31 0001063259 dnn:PhysicalUraniumMember 2021-12-31 0001063259 dnn:OrdinaryShares1Member 2021-12-31 0001063259 dnn:EquityInstrumentsMember 2020-12-31 0001063259 2020-12-31 0001063259 dnn:JCUMember 2022-01-01 2022-12-31 0001063259 2017-02-28 0001063259 2017-02-01 2017-02-28 0001063259 dnn:CreditFacility2023Member 2022-12-31 0001063259 dnn:InvestmentsequityinstrumentsanduraniumMember 2022-12-31 0001063259 dnn:InventoryMember 2022-12-31 0001063259 dnn:InvestmentsequityinstrumentsanduraniumMember 2021-12-31 0001063259 dnn:InventoryMember 2021-12-31 0001063259 dnn:ReclamationObligationsMember 2022-12-31 0001063259 dnn:PostEmploymentBenefitsMember 2022-12-31 0001063259 dnn:OtherMember 2022-12-31 0001063259 dnn:NonCapitalTaxLossCarryForwardsMember 2022-12-31 0001063259 dnn:CapitalLossCarryForwardsMember 2022-12-31 0001063259 dnn:ReclamationObligationsMember 2021-12-31 0001063259 dnn:PostEmploymentBenefitsMember 2021-12-31 0001063259 dnn:OtherMember 2021-12-31 0001063259 dnn:NonCapitalTaxLossCarryForwardsMember 2021-12-31 0001063259 dnn:CapitalLossCarryForwardsMember 2021-12-31 0001063259 dnn:EquityInstrumentsMember 2022-01-01 2022-12-31 0001063259 dnn:UEXCorporationMember 2021-08-03 2021-08-03 0001063259 dnn:OverseasUraniumResourcesDevelopmentCoLimitedMember 2021-08-03 2021-08-03 0001063259 dnn:LiquidityRiskWithin1YearMember 2022-12-31 0001063259 dnn:LiquidityRisk1To5YearsMember 2022-12-31 0001063259 dnn:March2021WarrantsMember 2022-01-01 2022-12-31 0001063259 dnn:February2021WarrantsMember 2022-01-01 2022-12-31 0001063259 dnn:GoviExWarrantsMember dnn:EquityInstrumentsMember 2021-10-01 2021-10-31 0001063259 dnn:March2021WarrantsMember 2021-03-01 2021-03-31 0001063259 dnn:February2021WarrantsMember 2021-02-01 2021-02-28 0001063259 dnn:GoviExWarrantsMember dnn:EquityInstrumentsMember 2021-01-01 2021-12-31 0001063259 dnn:March2021WarrantsMember 2021-01-01 2021-12-31 0001063259 dnn:February2021WarrantsMember 2021-01-01 2021-12-31 0001063259 2021-03-22 2021-03-22 0001063259 dnn:CanadianDollarWeakensMember 2022-01-01 2022-12-31 0001063259 dnn:CanadianDollarStrengthensMember 2022-01-01 2022-12-31 0001063259 ifrs-full:ClassesOfShareCapitalMember 2021-01-01 2021-12-31 0001063259 ifrs-full:ClassesOfShareCapitalMember 2022-01-01 2022-12-31 0001063259 dnn:WheelerRiverJointVentureMember 2022-01-01 2022-12-31 0001063259 dnn:WheelerRiverAndOtherJointVenturesMember 2022-12-31 0001063259 dnn:MccleanLakeAndMidwestJointVenturesMember 2022-12-31 0001063259 dnn:ElliotLakeMember 2022-12-31 0001063259 dnn:WheelerRiverAndOtherJointVenturesMember 2021-12-31 0001063259 dnn:MccleanLakeAndMidwestJointVenturesMember 2021-12-31 0001063259 dnn:ElliotLakeMember 2021-12-31 0001063259 2014-01-01 2014-01-31 0001063259 ifrs-full:TopOfRangeMember 2022-01-01 2022-12-31 0001063259 ifrs-full:BottomOfRangeMember 2022-01-01 2022-12-31 0001063259 dnn:ElliotLakeReclamationTrustFundMember 2022-12-31 0001063259 dnn:ElliotLakeReclamationTrustFundMember 2021-12-31 0001063259 dnn:TaxLossesOperatingMember 2022-12-31 0001063259 dnn:TaxLossesCapitalMember 2022-12-31 0001063259 dnn:TaxCreditsMember 2022-12-31 0001063259 dnn:PropertyPlantAndEquipmentsMember 2022-12-31 0001063259 dnn:OtherDeductibleTemporaryDifferencesMember 2022-12-31 0001063259 dnn:TaxLossesOperatingMember 2021-12-31 0001063259 dnn:TaxLossesCapitalMember 2021-12-31 0001063259 dnn:TaxCreditsMember 2021-12-31 0001063259 dnn:PropertyPlantAndEquipmentsMember 2021-12-31 0001063259 dnn:OtherDeductibleTemporaryDifferencesMember 2021-12-31 0001063259 country:CA 2022-12-31 0001063259 country:CA 2021-12-31 0001063259 dnn:LoansLiabilitiesMember 2022-12-31 0001063259 dnn:LeaseLiabilitiesCustomMember 2022-12-31 0001063259 2022-12-31 0001063259 2021-12-31 0001063259 dnn:CreditFacility2023Member 2022-01-01 2022-12-31 0001063259 dnn:LessAbsorptionMineralPropertiesMember 2022-01-01 2022-12-31 0001063259 dnn:LessAbsorptionMillingMember 2022-01-01 2022-12-31 0001063259 dnn:LessAbsorptionMineralPropertiesMember 2021-01-01 2021-12-31 0001063259 dnn:LessAbsorptionMillingMember 2021-01-01 2021-12-31 0001063259 dnn:GoviExWarrantsMember dnn:EquityInstrumentsMember 2022-12-31 0001063259 dnn:EquityInstrumentsMember 2022-12-31 0001063259 dnn:GoviExWarrantsMember dnn:EquityInstrumentsMember 2021-12-31 0001063259 dnn:EquityInstrumentsMember 2021-12-31 0001063259 dnn:UPCMember dnn:WLUCMember 2022-01-01 2022-12-31 0001063259 stpr:CA-SK 2022-12-31 0001063259 dnn:McCleanLakeJointVentureMember 2022-12-31 0001063259 dnn:UPCMember 2022-01-01 2022-12-31 0001063259 dnn:SetUpAndMaintenanceOf2021ShelfProspectusAnd2021AtmProgramMember 2022-01-01 2022-12-31 0001063259 dnn:MaintenanceOf2021ShelfProspectusAnd2021AtmProgramMember 2022-01-01 2022-12-31 0001063259 dnn:SetUpAndMaintenanceOf2021ShelfProspectusAnd2021AtmProgramMember 2021-01-01 2021-12-31 0001063259 dnn:LettersOfCreditFacilityPledgedAssetsMember 2022-04-30 0001063259 2022-04-30 0001063259 ifrs-full:ClassesOfShareCapitalMember 2021-09-28 0001063259 ifrs-full:ClassesOfShareCapitalMember 2021-09-16 0001063259 ifrs-full:ClassesOfShareCapitalMember 2021-03-22 2021-03-22 0001063259 ifrs-full:ClassesOfShareCapitalMember 2021-03-03 2021-03-03 0001063259 ifrs-full:ClassesOfShareCapitalMember 2021-02-19 2021-02-19 0001063259 ifrs-full:ClassesOfShareCapitalMember 2020-06-02 2020-06-02 0001063259 dnn:TradeAndOtherReceivablesMember 2022-01-01 2022-12-31 0001063259 dnn:PrepaidExpensesAndOtherAssetsMember 2022-01-01 2022-12-31 0001063259 dnn:InventoryMember 2022-01-01 2022-12-31 0001063259 dnn:AccountsPayablesAndAccruedLiabilitiesMember 2022-01-01 2022-12-31 0001063259 dnn:TradeAndOtherReceivablesMember 2021-01-01 2021-12-31 0001063259 dnn:PrepaidExpensesAndOtherAssetsMember 2021-01-01 2021-12-31 0001063259 dnn:InventoryMember 2021-01-01 2021-12-31 0001063259 dnn:AccountsPayablesAndAccruedLiabilitiesMember 2021-01-01 2021-12-31 0001063259 dnn:DeferredIncomeTaxLiabilityMember 2022-01-01 2022-12-31 0001063259 dnn:DeferredIncomeTaxLiabilityMember 2021-01-01 2021-12-31 0001063259 ifrs-full:AccumulatedDepreciationAndAmortisationMember dnn:PlantAndEquipmentRightOfUseMember 2022-01-01 2022-12-31 0001063259 ifrs-full:AccumulatedDepreciationAndAmortisationMember dnn:PlantAndEquipmentOwnedMember 2022-01-01 2022-12-31 0001063259 ifrs-full:AccumulatedDepreciationAndAmortisationMember dnn:MineralPropertiesMember 2022-01-01 2022-12-31 0001063259 dnn:PlantAndEquipmentRightOfUseMember dnn:MiningPropertyCostMember 2022-01-01 2022-12-31 0001063259 dnn:PlantAndEquipmentOwnedMember dnn:MiningPropertyCostMember 2022-01-01 2022-12-31 0001063259 dnn:MineralPropertiesMember dnn:MiningPropertyCostMember 2022-01-01 2022-12-31 0001063259 ifrs-full:AccumulatedDepreciationAndAmortisationMember 2022-01-01 2022-12-31 0001063259 dnn:MiningPropertyCostMember 2022-01-01 2022-12-31 0001063259 ifrs-full:AccumulatedDepreciationAndAmortisationMember dnn:PlantAndEquipmentRightOfUseMember 2021-01-01 2021-12-31 0001063259 ifrs-full:AccumulatedDepreciationAndAmortisationMember dnn:PlantAndEquipmentOwnedMember 2021-01-01 2021-12-31 0001063259 ifrs-full:AccumulatedDepreciationAndAmortisationMember dnn:MineralPropertiesMember 2021-01-01 2021-12-31 0001063259 dnn:PlantAndEquipmentRightOfUseMember dnn:MiningPropertyCostMember 2021-01-01 2021-12-31 0001063259 dnn:PlantAndEquipmentOwnedMember dnn:MiningPropertyCostMember 2021-01-01 2021-12-31 0001063259 dnn:MineralPropertiesMember dnn:MiningPropertyCostMember 2021-01-01 2021-12-31 0001063259 ifrs-full:AccumulatedDepreciationAndAmortisationMember 2021-01-01 2021-12-31 0001063259 dnn:MiningPropertyCostMember 2021-01-01 2021-12-31 0001063259 dnn:GoviExWarrantsMember dnn:EquityInstrumentsMember 2022-01-01 2022-12-31 0001063259 dnn:SegmentsOperatingMember dnn:MiningMember 2022-01-01 2022-12-31 0001063259 dnn:SegmentsOperatingMember dnn:CorporateAndOtherSegmentMember 2022-01-01 2022-12-31 0001063259 dnn:SegmentsOperatingMember dnn:ClosedMinesServicesMember 2022-01-01 2022-12-31 0001063259 dnn:SegmentsOperatingMember 2022-01-01 2022-12-31 0001063259 dnn:SegmentsOperatingMember dnn:MiningMember 2021-01-01 2021-12-31 0001063259 dnn:SegmentsOperatingMember dnn:CorporateAndOtherSegmentMember 2021-01-01 2021-12-31 0001063259 dnn:SegmentsOperatingMember dnn:ClosedMinesServicesMember 2021-01-01 2021-12-31 0001063259 dnn:SegmentsOperatingMember 2021-01-01 2021-12-31 0001063259 dnn:LoansLiabilitiesMember 2022-01-01 2022-12-31 0001063259 dnn:LeaseLiabilitiesCustomMember 2022-01-01 2022-12-31 0001063259 dnn:LoansLiabilitiesMember 2021-01-01 2021-12-31 0001063259 dnn:LeaseLiabilitiesCustomMember 2021-01-01 2021-12-31 0001063259 dnn:PhysicalUraniumMember 2021-01-01 2021-12-31 0001063259 2021-01-01 2021-12-31 iso4217:CAD iso4217:USD xbrli:shares iso4217:CAD xbrli:shares iso4217:USD xbrli:shares xbrli:pure dnn:segment utr:lb dnn:EquityInstruments

​

​

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Date: March 10, 2023

Commission File Number: 001-33414

Denison Mines Corp.

(Name of registrant)

1100-40 University Avenue

Toronto ON

M5J 1T1 Canada

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F ☐ Form 40-F ☒

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ☐

​

​

​

INCORPORATION BY REFERENCE

Exhibits 99.1, 99.2, 99.3, 99.4, 99.5, 99.6 and 99.7 to this report on Form 6-K are hereby incorporated by reference as an Exhibit to the Registration Statement on Form F-10 of Denison Mines Corp. (File No. 333-258939), as amended and supplemented.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

​ | ​
​ | DENISON MINES CORP.
​ | ​
​ | /s/ Amanda Willett
Date: March 10, 2023 | Amanda Willett
​ | Vice President Legal and Corporate Secretary

​

​

FORM 6-K EXHIBIT INDEX

​ | ​ | ​
Exhibit Number |  | Description
​ | ​ | ​
99.1 | ​ | Consolidation Financial Statements for the year ended December 31, 2022
99.2 | ​ | Management's Discussion and Analysis for the financial year ended December 31, 2022
99.3 | ​ | Consent of KPMG LLP
99.4 | ​ | Consent of Qualified Person
99.5 | ​ | Consent of Qualified Person
99.6 | ​ | Ontario Form 13-502F1 - Reporting Issuer Participation Fee Form
99.7 | ​ | Alberta Form 13-501F1 - Reporting Issuer Participation Fee Form

​

​

​ | ​ | ​
101.INS |  | XBRL Instance Document
101.SCH | ​ | XBRL Taxonomy Extension Schema
101.LAB | ​ | XBRL Taxonomy Extension Label Linkbase
101.CAL | ​ | XBRL Taxonomy Extension Calculation Linkbase
101.PRE | ​ | XBRL Taxonomy Extension Presentation Linkbase
101.DEF | ​ | XBRL Taxonomy Extension Definition Linkbase

​