Rio Tinto Boosts Stake in Canada Miner in Lithium Expansion

Rio Tinto got an initial 50% stake in Nemaska through its $6.7 billion acquisition of Arcadium Lithium Plc.Photographer: Matt Jelonek/Bloomberg

Provide news feedback or report an error

Confidential tip?

Send a tip to our reporters

Site feedback:

Take our Survey

By Mathieu Dion

February 18, 2026 at 12:45 PM UTC

Updated on

February 18, 2026 at 5:01 PM UTC

Rio Tinto Group took majority control of Canada’s Nemaska Lithium as part of a push to invest more in Quebec projects tied to the battery metal.

The global mining company made several investments to bring its stake up to 54% of Nemaska, it said in a statement, confirming an earlier Bloomberg News report.