"It's like an artificial tightness right now in the markets because you have all this material in the U.S., but not enough outside," a strategist told CNBC.

First off, copper mines are facing decreasing grades as they age. In other words, the amount of copper per unit of mined ore ...

Rio Tinto said it is in negotiations with Mongolia over the giant Oyu Tolgoi copper mine, one of the world’s biggest deposits of the metal needed to build electric vehicles and data centers.

Lundin Mining to acquire additional 5% interest in the Caserones copper mine in Chile and a 30.9% stake in Los Helados project and a 0.62% net smelter return royalty for a combined $215M.

Copper Flat mine aims to resume operations in 2029, a move that could yield 628 million pounds of copper over 18 years ...

A Canadian company wants to reopen the San Manuel copper mine more than 20 years after it closed northeast of Tucson.Five takeaways from Sunday's story about a Canadian company's plan ...

Representatives from Japanese firms have inspected a copper mine in Zambia to explore business opportunities. About 20 people ...

March 9 (Reuters) - Mongolia is seeking to renegotiate the "unfair" commercial terms of mining giant Rio Tinto's $18 billion Oyu Tolgoi copper mine, the Financial Times reported on Monday. Mongolia's ...

The potential of Michigan copper mining is returning to the spotlight after a 30-year absence, since the White Pine mine, in Ontonagon County, was closed. In a statement released Monday, Highland ...

Mongolia has informed Anglo-Australian mining giant Rio Tinto (ASX: RIO) that it wants a renegotiation of “unfair” commercial terms of the contract that applies to the development of the huge $18bn ...

Earthjustice and the Western Mining Action Project are suing the federal government for approving the expansion of the Pinto Valley mine in 2021. Environmental groups are suing the federal government ...

On Monday, the B.C. government announced it had issued Mines Act and Environmental Management Act permits for the New ...