Rio Tinto produces first copper with Nuton technology

After more than 30 years of research and development, the first copper cathode using Rio Tinto’s Nuton technology, a proprietary bioleaching process that relies on microorganisms grown on site, was produced at Gunnison Copper’s Johnson Camp mine in Arizona last month. “This is a breakthrough achievement for our Nuton technology, which is proving that cleaner, faster, and more efficient copper…

Read More

Gunnison Copper completes inaugural Johnson Camp sales

Gunnison Copper announced the first sales of pure copper cathode from its fully operational Johnson Camp mine in southeast Arizona, with production capacity of up to 25 million pounds annually. On September 15, Gunnison completed its inaugural copper sales, marking the start of revenue generation following the successful commissioning of the mine. Gunnison sold a total of 225,371 lb. of…

Read More

Gunnison Copper ahead of schedule at Arizona mine

Gunnison Copper has commenced production of pure copper cathode from its fully operational Johnson Camp mine in southeast Arizona, following the successful start-up of the solvent extraction (SX) and electrowinning (EW) circuit. “This is an incredible moment for Gunnison and for U.S. copper supply. To bring Johnson Camp into production ahead of schedule and with an excellent health and safety…

Read More