The update issued Wednesday raises the Gunnison project’s net present value (at an 8% discount) to $1.95 billion, assuming a ...

Tempe's Arizona Sonoran Copper is suddenly at the center of a billion-dollar chess move, with Hudbay Minerals proposing an all-stock takeover worth about $1.5 billion that would pull the Cactus ...

A U.S. appeals court has temporarily blocked the transfer of federal forest land in Arizona to a pair of international companies that plan to mine one of the largest copper deposits in North America.

ASU and Freeport are building robots and sensors to speed copper sorting and shrink processing waste in Arizona.

BHP and Faraday Copper will explore a deal to restart the San Manuel copper mine in Arizona and combining it with Faraday's nearby Copper Creek project to create a larger copper hub.

Copper prices have been volatile in 2025, fueled by economic uncertainty from an ever-changing US trade policy and strong supply and demand fundamentals. The International Copper Study Group, the ...

Although copper has been mined in the area surrounding Oak Flat off and on since the 1870s, the current struggle over the fate of the campground — deemed sacred by Apaches and other Native peoples and ...

Freeport and Southern Copper face copper price swings, but both push ahead with major projects leveraging strong cash flows.