Mitsubishi is shelling out nearly $600 million as a joint venture partner for an expanded copper mine project in Arizona.

Copper mining firm Rio Tinto is partnering with Amazon to provide copper from a southern Arizona mine for the tech giant’s ...

Amazon Web Services signed a two-year copper deal with Rio Tinto to supply AI data centers from an Arizona mine, expecting to ...

The Johnson Camp Mine in Cochise County has reopened through a partnership between British-Australian mining company Nuton ...

A single large data center can consume tens of thousands of tonnes on its own, which shows that the agreement covers only a ...

Oak Flat in Arizona is at the center of a struggle that's going on three decades. Here's everything that has happened with ...

The cloud-computing giant will become the first customer for copper produced using Rio’s Nuton bioleaching technology, the ...

Amazon’s data centers will reportedly utilize copper from a mine in Arizona that’s leaching metal from ores using ...

Religious rights advocates and First Amendment experts say the ability of Native peoples to exercise religious rights is at stake with a proposed mine.

Environmental activists in Arizona have taken a step forward in their efforts to stop the Oak Flat land transfer to ...

Gunnison Copper Corp. (TSX: GCU) (OTCQB: GCUMF) (FSE: 3XS0) ("Gunnison" or the "Company") announces Rio Tinto's strategic ...

90.8% Voter Support for Mining Education Underscores Industry's Role as Economic Solution TUCSON, Ariz., Dec. 4, 2025 /PRNewswire/ -- A fourth annual survey, released in partnership by the Arizona ...