Chilean state-owned miner Codelco said on Thursday it would use grinding balls made from recycled material in its flagship El ...

The worker, who asked not to be identified because they were not authorized to talk about internal operations, said Codelco has yet to fix bottlenecks in transporting minerals in the mine.

The worker, who asked not to be identified because they were not authorized to talk about internal operations, said Codelco has yet to fix bottlenecks in transporting minerals in the mine.

Chilean state-owned miner Codelco said on Thursday it would use grinding balls made from recycled material in its flagship El Teniente mine, allowing it to reduce carbon dioxide emissions.

SANTIAGO, Jan 30 (Reuters) - Chilean state-owned miner Codelco said on Thursday it would use grinding balls made from recycled material in its flagship El Teniente mine, allowing it to reduce ...