Panama’s top court rules First Quantum contract unconstitutional

There will also be discussions on other bills regarding the minimum wage and the mining royalty.

Chinese operations shut for maintenance and plants in North America slowed down.

Gains, however, were subdued as investors worried about demand in China.

The incoming chair of Vale's newly created base metals business said he wants to focus on margins and marketing.

Pressure was coming from "parts of the US government," chair Dominic Barton said.

According to Cochilco, the world market for refined copper will have a deficit this year of 67,000 tonnes.

The Fraser Institute's Annual Survey of Mining Companies places Western Australia second, and the Canadian province of Saskatchewan third.

The due diligence period on the offer ends May 11.

Barrick CEO Mark Bristow is refusing to shut the door on accepting new investment from state-controlled Chinese companies, and questioned the move by Canada and the US to clamp down on such investment.