By Ernest Scheyder HOUSTON, March 24 (Reuters) - Rio Tinto aims to open Arizona's Resolution Copper mine by the mid-2030s but may need to export some of its copper concentrate due to the challenging ...

Resolution Copper, a joint venture between Rio Tinto (55%) and BHP (45%), and the United States Forest Service (USFS) have ...

Last month, the 9th U.S. Circuit Court of Appeals turned down one of the last surviving legal efforts to challenge the ...

Add Yahoo as a preferred source to see more of our stories on Google. Mine shafts nine, right, and 10, left, tower over the Resolution Copper Mining Company facility, on June 9, 2023, in Miami, Ariz.

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 ...

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 ...

Mining advocates say Twin Metals is expected to move forward with plans for a copper-nickel mine in the Rainy River Watershed ...

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 ...

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 ...