Rio Tinto, Eramet and LG Energy seek to develop lithium extraction tech for Chile

SANTIAGO, April 22 (Reuters) - Rio Tinto (RIO.L), opens new tab, Eramet (ERMT.PA), opens new tab and LG Energy (373220.KS), opens new tab are among 30 companies that have submitted proposals to develop lithium extraction technology for a Chilean salt flat in the early stages of exploration, state-run mining body ENAMI said.

Chile is seeking to develop the salt flat known as Salares Altoandinos for lithium mining.

ENAMI has asked bidding companies to detail step-by-step plans to test the brine deposits of the salt flats, outline potential processes to reach battery grade lithium, and to state whether they had a plan to assess the environmental impact of brine reinjection.