The transfer of federal forest land in Arizona to a pair of international companies that plan to mine one of the largest ...

Aggreko has finalized a landmark power purchase agreement (PPA) with international mining company Harmony Gold for the Eva ...

A recent court ruling allows one of world’s largest mining companies to move forward in an area of religious and cultural ...

Demand for copper is surging because of demand from new technologies, but suppliers are struggling to keep up, and they are ...

By Ernest Scheyder HOUSTON, March 24 (Reuters) - Rio Tinto aims to open Arizona's Resolution Copper mine by the mid-2030s but ...

A new copper project in Arizona that made its first metal this month is ramping up and is expected to make its owner the ...

An Arizona land auction for a Canadian mining company's Copper World project faces opposition from residents and Pima County.

Earthjustice and the Western Mining Action Project are suing the federal government for approving the expansion of the Pinto Valley mine in 2021. Environmental groups are suing the federal government ...

Copper Flat mine aims to resume operations in 2029, a move that could yield 628 million pounds of copper over 18 years ...

From a fire protection and safety perspective, the dry-type units are preferred by many underground mines due to the absence ...