Rio Tinto to buy Arcadium Lithium in $6.7bn deal

Rio Tinto will acquire Arcadium Lithium for $6.7 billion, in an agreed all-cash deal that would make it one of the world's largest lithium producers.Rio said it would pay $5.85 per share for the US-based lithium miner. That represents an almost 90% premium to Arcadium's closing price of...