Rio Tinto has approved construction of a new 25-megawatt solar plant at its Kennecott copper operation in Utah, bringing the mine’s total solar capacity to 30 MW. It will be located next to an existing 5-MW solar plant. “Expanding our solar farm is the latest step in our journey to reduce our carbon footprint. Together with other measures we’ve taken,…
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Positive prefeasibility study for Cactus mine project: Arizona Sonoran
Arizona Sonoran Copper has completed its NI 43-101 Prefeasibility Study (PFS) for its Cactus project in Arizona. The study outlines a lower risk, top 10 potential copper operation within the United States, producing LME Grade A copper cathodes onsite via heap leach and a solvent extraction/electrotwinning plant. Average annual production is estimated to be 55,000 tons of copper, with a…
Read MorePumpkin Hollow gets restart plan
A restart of operations and ramp-up of production is in the future of Nevada Copper’s Pumpkin Hollow complex in Yerington, Nev., after the company came to an agreement with lenders for a US$93 million infusion of funding for the underground mine. The plan for the copper operation, according to the company, includes a number of key components intended to de-risk…
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