Rio Tinto to form new lithium unit after Arcadium buy, memo says
Arcadium Lithium shareholders approve $6.7 bln Rio Tinto deal
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Rio Tinto's real prize: Arcadium's lithium extraction technology
Rio Tinto Agrees $6.7 Billion Arcadium Deal. Why It's Buying the Dip in Lithium.
Mining giant Rio Tinto to acquire Arcadium Lithium in $6.7 billion deal
Rio Tinto strikes $6.7 billion deal to buy Arcadium Lithium
Rio Tinto to buy Arcadium Lithium for $6.7 bln