Gunnison Copper Declares Commercial Production at Arizona’s Johnson Camp

Key Facts

Gunnison Copper announced on September 22, 2026, that its Johnson Camp Mine in Arizona has reached commercial production, meeting its Q3 2026 target. This declaration transitions the site from a ramp-up phase to commercial operations under the company's classification. According to reports, the mine achieved a record monthly production of 1.3 million pounds of copper cathode in August, with an additional 894,767 pounds produced through September 17.

The mine initially began producing copper cathode from oxide material in August 2025, followed by output from the Nuton circuit in December 2025, supported by an SX/EW plant with a 25-million-pound annual capacity. Per market data, the mine produced 2,006,315 pounds in Q2 2026; however, the latest figures indicate a significant acceleration in monthly output compared to the first-half total of 4,112,898 pounds.

GCUMF closed at $0.32 on September 21, 2026, having traded between $0.2932 and $0.3299. While achieving commercial production status reduces operational uncertainty, future valuation remains tied to the mine's ability to sustain these record production levels and reach its full nameplate capacity target by the end of 2026.