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Mining major joins lithium producers

Rio Tinto has started producing battery grade lithium from waste rock at a US$10 million lithium demonstration plant at its Boron mine in California.

Kristie Batten
Rio Tinto's Boron operation in California, USA

Rio Tinto's Boron operation in California, USA

The company revealed in 2019 it was working on a breakthrough process after the team at Boron found that part of the mine's waste rock had higher grade lithium than some US development projects. There...

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