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

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 ...

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

The completion comes after a decision on 13 March by the US Court of Appeals for the Ninth Circuit, which sided with ...

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., 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 ...

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/ ...

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 ...