Hudbay Minerals secures $600M from Mitsubishi for a 30% stake in its Copper World project, slashing its upfront costs and boosting long-term growth plans.

A request by a Native American tribe and environmentalists to stop the federal government from transferring land in Arizona for a massive copper mining project has been denied by a ...

Tucson cellist Harry Clark hadn't thought about his childhood neighborhood or its cast of characters in years until a cancer ...