By Ernest Scheyder HOUSTON, March 24 (Reuters) - Rio Tinto aims to open Arizona's Resolution Copper mine by the mid-2030s but ...

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 ...

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 ...

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 U.S. appeals court has temporarily blocked the transfer of federal forest land in Arizona to a pair of international companies that plan to mine one of the largest copper deposits in North America.

TUCSON, Ariz.— A new public opinion poll released today by the Center for Biological Diversity shows that 67% of likely Arizona voters oppose the proposed Resolution Copper mine, which would destroy ...

SUPERIOR, Ariz., Aug. 1, 2025 /PRNewswire/ -- Resolution Copper has been awarded the 2025 Safety Award for Small Underground Mine by the Rocky Mountain Mining Institute (RMMI), recognizing the ...

A U.S. district judge on Friday denied the latest request by a Native American tribe, environmentalists and other plaintiffs to stop the federal government from transferring land in Arizona for a ...