Add Yahoo as a preferred source to see more of our stories on Google. See 30-year history of the proposed copper mine at Arizona's Oak Flat Although copper has been mined in the area surrounding Oak ...

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 ...

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 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 ...

SUPERIOR, Ariz., Nov. 5, 2025 /PRNewswire/ -- Resolution Copper has reached a major milestone with the completion of its multi-year, $200 million rehabilitation and deepening of the historic No. 9 ...

US President Donald Trump welcomed Rio Tinto CEO Jakob Stausholm and incoming CEO Simon Trott, as well as BHP CEO Mike Henry, to the Oval Office on Tuesday to discuss the developments around a vast ...

HOUSTON, March 24 (Reuters) - Rio Tinto (RIO.L), opens new tab 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 ...

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 ...