PT Freeport Indonesia (PTFI) will close the operation of the open-pit gold mine in Grasberg, Papua–where the ore body occurs near the highland surface. The open-pit method is used in mining the Grasberg ore body and occurs near the highland surface.

As a result, said Executive Vice President of PTFI Sony Prasetyo on April 16, the company’s production will drop significantly from 200,000 tons per day to by 80,000 tons per day in 2019. Followed the decision, he said, the unit of U.S miner Freeport Mcmoran Inc. revenues will shrunk.