In an unexpected U-turn, the US Army Corps of Engineers has asked the company to craft a new mitigation plan for the controversial copper-gold mine in Alaska.

Rio will cut short-term bonuses of some senior executives after internal review found “systemic failures in the cultural heritage management system.”

The type II withe diamond is one of the largest gem quality rocks recovered this year.

Iron ore’s rally, underpinned by China’s massive construction boom, is at risk of slowing as miners ramp up output.