Raw materials in 2016 scrap worth an estimated $64.61 billion, including metals such as gold, silver, copper, platinum and palladium, U.N.-backed study said.
Chilean mines will negotiate contracts with 32 unions next year, representing about three-quarters of the country’s copper output, or about one-fifth of world production.
The company also confirmed its 2018 dividend policy would include a fixed dividend of $1bn and said it would reactivate idled capacity "when appropriate".