Shares of PT Amman Mineral International are up 153% since their debut on July 7.

The company said a competitive process to determine a successful bidder is under way.

This follows another job cut announcement 10 days earlier, when Codelco said it would trim 10% of staff.

Inflationary pressure is coming from lower ore quality, which means more rock has to be crushed to extract the same amount of metal.

Deaths occurred at Anglo American's Los Bronces mine and at Minera ACF, which produces iodine and nitrate in the Tarapaca region.

An accident still under investigation caused the death of two workers at Anglo American’s Los Bronces mine in Chile’s Metropolitan Region.