JAKARTA - A special mining permit given to Freeport McMoRan unit PT Freeport Indonesia on Friday is valid up to 2031, and could be extended to 2041, an energy ministry official said.
* Copper ore output from Freeport's Grasberg mine is expected to decline in 2019 once open pit mining ends this year, Freeport Indonesia chief executive Tony Wenas said
* Output from the mine is expected to increase once again in 2020, Wenas said.
(By Fergus Jensen; Editing by David Evans)