Rio Tinto Gains Majority Control of Nemaska Lithium in Quebec
Rio Tinto has acquired a 53.9% stake in Canada's Nemaska Lithium, taking control of the lithium producer. The Government of Quebec holds the remaining 46.1%. Both parties will continue funding the lithium hydroxide plant in Becancour, with production expected to start in 2028. Quebec will invest an additional $200 million, while Rio Tinto has already committed over $300 million in 2026 to support lithium development in the province.
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Rio Tinto has obtained a 53.9% majority stake in Canada's Nemaska Lithium, while the Government of Quebec retains 46.1%. This acquisition is part of Rio Tinto's strategy to establish a fully integrated lithium supply chain in Quebec, targeting the North American electric vehicle market.
The partners have been investing in Nemaska since March 2025 and will continue funding the lithium hydroxide plant in Becancour, with first production expected in 2028. Quebec will invest an additional $200 million in Nemaska, complementing Rio Tinto's previous investment of over $300 million. The company previously acquired a 50% interest in Nemaska through its purchase of Arcadium Lithium PLC.
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