Rio Tinto, Mongolia sign power deal for Oyu Tolgoi copper mine

Vale Base Metals chairman Mark Cutifani is undertaking a unit-wide asset review.

The Cobre Panama project was forced to shut down after Panama's top court ruled that its contract was unconstitutional.

The rise was supported by a strong fourth quarter during which 34 million lb. of copper and 369,000 lb. of molybdenum were produced.

The country also announced a $182 million mineral exploration incentive program.

Talks for a Sudbury tie-up have been on and off since 2006.

The tin market's fortunes remain beholden to Myanmar's United Wa State Army, which controls one of the world's largest mines.

The rise follows a restriction imposed by Britain on entities and individuals taking physical delivery of Russian-made base metals.

Ivanhoe Electric is part of a growing number of international mining companies investing in Saudi Arabia.

The Gulf state has revised upwards estimates for its untapped mineral resources to $2.5 trillion.