Vale Base MetalsVale base metals have developed a process to produce battery grade nickel sulphateBattery grade nickel sulphate for a facility planned for the industrial park in BécancourBécancour industrial park, Québec, Canada. The facility is being designed for an annual capacity of 25,000 tonnes of Ni equivalent. This project is being developed to provide nickel sulphateNickel sulphate for General Motor’s batteryBattery supplySupply chain to power about 350,000 electric vehiclesElectric Vehicles (EVs) annually. The project is expected to begin operation in 2028. The facility will use high-purity, low-carbon nickelNickel from Vale Base MetalsVale base metals own refineries in Ontario and Newfoundland & Labrador. The process consists of sulphuric acidSulphuric acid dissolutionDissolution, under oxidizing conditions, of metallic nickelNickel to nickel sulphateNickel sulphate in fixed bed reactors, with flexibility to operate in different modes, depending on operational requirements, followed by acidAcid neutralization with suitable reagents, such as nickelNickel carbonate, to remove trace impurities prior to being sent to the customer for batteryBattery pre-cursor productionProductions in an integrated facility adjacent to the Vale plant. This paper outlines the key features and milestones in the process developmentProcess development.