Rio Tinto's joint venture with BHP has gained ​control of acreage in Arizona needed to build the Resolution Copper mine after ...

Resolution Copper is set to start exploratory drilling at Oak Flat after a long-sought land swap is completed.

By Ernest Scheyder March 16 (Reuters) - Rio Tinto said on Monday it has gained control of acreage in Arizona needed to build ...

WASHINGTON – The U.S. Forest Service transferred Arizona’s Oak Flat to Resolution Copper, advancing a massive mining project opposed by tribes and environmentalists. Supporters say it boosts domestic ...

The move facilitates the next stage of work and development planning for the Resolution Copper project.

In a news release issued March 16, the U.S. Department of Agriculture’s Forest Service says it has completed the Southeast Arizona Land Exchange and issued the final record of decision for the ...

The transfer of federal forest land in Arizona to a pair of international companies that plan to mine one of the largest ...

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 copper deposits, have completed a Federal land ...

Miners sitting atop one of the largest copper deposits on the planet took a step toward production this week when the U.S.

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 ...

Resolution Copper's top executive praised the court decision, saying it's time for this 'meritless litigation' to end.

Multi-year agreement comes at a critical time when there is a record demand for food in the Copper Triangle, among Tribal Communities, and in the East Valley SUPERIOR, Ariz., Feb. 6, 2026 /PRNewswire/ ...