Rio Tinto, the world's No. 2 mining company by market value, on Thursday reported a drop in iron-ore production and shipments from its Australian mines. Fourth-quarter and full-year output and ...

Metal mines handle and dispose of some of the largest quantities of toxic chemicals in the country, and one of the biggest ...

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Excelsior Mining has secured the final permit needed to restart operations at the Johnson Camp Mine (JCM) in south-east ...

Arizona lawmakers touted significant direct and indirect economic benefits of adding copper to the USGS list. Five of the nation’s biggest copper mines are in Arizona, all run by Freeport-McMoRan.

Rio Tinto, the world's No. 2 mining company by market value, on Thursday reported a drop in iron-ore production and shipments from its Australian mines. Fourth-quarter and full-year output and exports ...