Core Insights - Rio Tinto has produced its first copper from the Johnson Camp mine in Arizona using Nuton® Technology, marking a significant advancement in copper processing technology [1] Company Developments - The production of the first copper cathode at Gunnison Copper's Johnson Camp mine was achieved after over 30 years of research and development [1] - The proprietary bioleaching technology utilized by Rio Tinto relies on microorganisms that are grown on-site [1]