The company has now begun a $500 million drilling campaign to explore the 30% of the deposit it previously could not access.

U.S. appeals court clears the way for a land transfer tied to Rio Tinto’s Resolution Copper project in Arizona, supporting ...

Rio Tinto (ASX:RIO,NYSE:RIO,LSE:RIO) has cleared a key legal hurdle at its Resolution Copper project in Arizona, allowing the ...

Resolution Copper told the U.S. Supreme Court it would begin exploratory drilling in the Oak Flat area on March 16 after the 9th U.S. Circuit Court of Appeals turned down a bid from a coalition of ...

The MarketWatch News Department was not involved in the creation of this content. SUPERIOR, Ariz., March 16, 2026 /PRNewswire/ -- The U.S. Forest Service and Resolution Copper, a joint venture owned ...

Resolution Copper Mining, owned by Resolution Copper Company (55%), a subsidiary of Rio Tinto, and BHP Copper (45%), a subsidiary of BHP. Funding for the project is proportional among the project ...

BHP Group (ASX:BHP) is pushing ahead with the Jansen potash project in Canada as a key growth pillar. The company is scaling ...

Resolution Copper, a joint venture between Rio Tinto (55%) and BHP (45%), and the United States Forest Service (USFS) have completed a historic land exchange, unlocking the next phase of one of the ...

March 16 (Reuters) - Rio Tinto said on Monday it has ⁠gained ⁠control of acreage in Arizona needed ⁠to build the Resolution Copper mine, a project slated to become one of the largest U.S. sources of ...

A joint venture of the world's two most valuable miners has gained control of former federal land in Arizona needed to build a mine that they say could meet up to a quarter of U.S. copper demand for ...

SUPERIOR, Ariz., March 16, 2026 /PRNewswire/ -- The U.S. Forest Service and Resolution Copper, a joint venture owned by Rio Tinto and BHP that represents one of the world's most significant untapped ...