Sociedad Quimica Y Minera said on Thursday its ongoing legal dispute with Chilean authorities over royalty payments may not be resolved until end of 2018.
China's coal imports dropped 21 percent in October as government moves to replace coal with cleaner fuel, iron ore prices followed coal futures higher.
They claim it won’t be possible to cut costs enough to offset the higher levies, and warn that some miners may need to pass on this new cost increase to the industrial production chain.
Spain's National Audience dismissed a series of allegations presented by Berkeley Energia against a legal action filed by a group of environmentalists who oppose the company's uranium project.
This is the third strike this year over profit-sharing staged by the company’s unions and it affects Southern Copper's two mines in the country — Cuajone and Toquepala.