Experts expect the country, which accounts for more 30% of the world's copper supply, to produce 5.4 million tonnes of the metal in 2017, slightly down from the 5.5mnt it yielded last year.
Precious metals expert Michael Ballanger discusses silver's recent price performance and why he believes precious metals are in alignment for a major ascent.
A local government spokesman said a pipe carrying a “rich mixture” of gold and rocks came lose on Tuesday night, but no official information has been disclosed.