Global copper production disruptions

Especially the mooted $19 billion valuation.

The separate company would be listed on the London Stock Exchange, as well as the Australian and South African markets.

The ruling was sparked by inspections carried out from March 16 to March 20 that detected contaminants in adjacent lakes.

The former Xstrata boss is already hunting for mining deals.

Liu Han is accused of running a criminal network to build his fortune.

Company says 'significant industry players' are among them.

Due to declining ore grades and lower metal prices.

The Pinto Valley copper mine in Arizona was supposed to stop producing in 2018.

Says government held 'inappropriate closed door meetings with opponents' of the proposed mine.