The buyback represents a shift for Anglo, which has been focused on repairing its bruised balance sheet and investing in growth.

Volcan was Anglo American's biggest shareholder, with a nearly 20% stake.

Australia's Fortescue Metals Group reported record quarterly iron ore shipments on Thursday.

The debate among the world’s top miners shows how climate and global warming is becoming a bigger issue facing all companies.

Disappointing earnings were driven mainly by its construction division.

Brazil's mining regulatory agency had ordered Vale to halt operations at Vargem Grande in February to guarantee the stability of its dams.

Companies until Aug. 2 to outline their bids, as the country seeks to revive interest in the world's largest undeveloped iron ore deposit.

The most-actively traded iron ore contract on the Dalian Commodity Exchange, for September delivery, fell as much as 1.3% to 887.5 yuan ($129.03) a tonne.