Arizona tribal leaders reacted angrily after President Donald Trump said their opposition to a copper mine was un-American.

Executives of two of the world’s biggest mining companies, BHP and Rio Tinto, have lobbied at the White House as part of ...

Two of the world's largest mining firms, Rio Tinto and BHP have been trying to develop Resolution Copper for roughly two ...

A U.S. appeals court has put the brakes on the transfer of federal forest land in Arizona to a company that plans to mine one ...

Drilling by Intrepid Metals (TSXV: INTR) in the Earp zone at its Corral copper project in southeast Arizona has returned ...

President met with chief executives of the world’s two biggest mining companies to discuss a copper project that could supply the US with a quarter of its demand.

President Trump signaled support for a giant copper mine in Arizona following a meeting with the heads of two of the world’s ...

Hours before a disputed land swap was to take effect, an appeals court halted the process, giving copper mine opponents more ...

Hudbay Minerals said on Wednesday Mitsubishi Corp will buy a 30 per cent stake in its Copper World project in Arizona for ...

A federal land swap will have to wait as another legal challenge to a controversial Arizona copper mine makes its way through ...

The US$600-million deal consists of US$420-million for a 30% equity interest in the project at closing and US$180-million ...

The project, called Resolution Copper, has been under development by mining giants Rio Tinto and BHP Group for roughly two decades, but it has faced legal challenges from Native American people, ...