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 ...

Resolution Copper Mining, owned by Resolution Copper Company (55%), a subsidiary of Rio Tinto, and BHP Copper (45%), a subsidiary of BHP. Resolution is one of the most significant undeveloped copper ...

The Resolution Copper mine in Arizona plans to use a large amount of groundwater, potentially jeopardizing the planned Superstition Vistas development and its water supply. Arizona law allows mining ...

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 ...

Apache Stronghold and its allies allege that federal officials admitted a proposed copper mine would destroy Oak Flat.

Opponents of a contentious land exchange between the U.S. Forest Service and Resolution Copper have filed a new, amended lawsuit aimed at blocking a giant copper mine they say will desecrate lands ...

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 ...

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 ...

SUPERIOR, Ariz.--(BUSINESS WIRE)-- 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, ...

LONDON (Reuters) - Rio Tinto on Friday said it had moved a step closer to the development of a new copper project in Arizona, one of the few new major known deposits of the metal, with the potential ...