Electra Battery Materials restarts construction on North America’s first cobalt sulfate refinery

Electra Battery Materials has resumed full-scale construction on North America’s first cobalt sulfate refinery near Temiskaming Shores, Ontario, after a two-year pause. The project, which restarted in November 2025 following a successful recapitalisation, aims to produce 6,500 tonnes of battery-grade cobalt sulfate annually. This material is a crucial precursor for nickel-manganese-cobalt (NMC) lithium-ion battery cathodes, underpinning the growing electric vehicle and energy storage markets. The refinery’s construction budget stands at US$73 million, supported by a total funding package of US$82 million. This includes a US$20 million grant from the US Department of Defense, US$28 million from Canadian government bodies including Invest Ontario, and US$34 million raised through equity financing in October 2025. Electra also reported a strong cash position, holding C$39 million at the end of 2025, which increased to approximately C$41 million by the time of the announcement. The company plans to begin early commissioning in the fourth quarter of 2026, with mechanical completion expected by mid-2027 and full commercial production targeted for the end of that year. Electra is employing a multi-package execution strategy, contracting specialised firms for different parts of the build rather than relying on a single general contractor. CEO Trent Mell highlighted the significance of the project, emphasising that the refinery’s funding and reset balance sheet mark a pivotal moment for the company. He stressed the refinery’s role in reducing North America’s reliance on foreign sources for a critical battery supply chain component, particularly as cobalt sulfate refining is currently dominated by China despite the majority of raw cobalt ore coming from the Democratic Republic of Congo. The development of this refinery has broader implications for the North American electric vehicle industry, which faces vulnerability due to its dependence on overseas processing of cobalt. By establishing a domestic supply of battery-grade cobalt sulfate, Electra aims to strengthen regional supply chains and enhance the security of critical materials needed for battery manufacturing. This move could also encourage further investment in local battery material processing and contribute to the continent’s strategic autonomy in the rapidly expanding electric mobility sector.