Deep Well Injection

WasteWater Disposal •Theprocesswaterwillcreatesalinewastewater(1.5xthesalinityofoceanwater)

•Wastewaterwillberecycled,wherepossible,ordisposedofviadeepwellinjection

•Therewillbetwodeepinjectionwells(primaryandsecondarywells),designedtoinjectupto20m3/h

•DeepwellinjectionisaproventechnologyregulatedbytheSaskatchewanMinistryofEnergyandResources,asthepreferredwastewaterdisposalmethodinSaskatchewan

•Otherindustriesintheprovince(e.g.potash,oilandgas)utilizedeepinjectionwellsthatpassthroughfreshwateraquiferssuchastheDalmenyAquifer

•ThereareoveronehundredofthesewellsinoperationinSaskatchewan,includingatleast8injectionwellswithin50kmoftheproposedprojectsite(e.g.Cory,Vanscoy,Saskatoon,andPatienceLake)

•Potentialimpactstotheenvironmentwillbeminimal(ifany)duetodesigninstallation,operationandmaintenancestandardsandregulations

Disposal Horizon•WastewaterwillbeinjectedintotheSourisRiverFormation,approximately740mbelowgroundleveland450mbelowtheDalmenyAquifer

•TheSourisRiverFormationis170mthick,withhighpermeabilityandporositymakingitidealforthedisposalofthewastewater

•TheporewaterintheSourisFormationishighlymineralized(10xmoresalinethanoceanwater)

•Theinjectionwellsaredesignedbasedonthecharacteristicsofthewastewaterandthewaterwithinthedisposalhorizon

•ApermitforaWasteWaterDisposalWellhasbeenissuedbytheregulator•FortuneMineralsispreparingaDeepWellManagementPlanoutliningoperational,maintenance,spillresponse,andtrainingprocedures

SaSkatchewan MetalS ProceSSing Plant

Deep Well Injection

injection WellsFortuneMineralswillusethebestavailabletechnology,whichincludesanumberofbarrierstopreventwastewaterfrominfiltratingfreshwateraquifers:•Multiplecasings;•Pressuretestedseals;•Injectiontubinginhibitor;•Leakmonitoring;•Geologicseal;and•Cathodicprotection.

Continuousmonitoring,annualtestingandmaintenancewillbeconducted.

“Fortune Minerals will monitor and report their injection as per applicable regulations.”