Gunnison Copper Reaches Commercial Production at Johnson Camp Mine
Gunnison Copper Corporation has reached commercial production at its Johnson Camp mine, marking an important milestone for the company. The mine is running at approximately 60% of its nameplate capacity, producing around 1.3 million pounds of cathode per month.
The Johnson Camp mine uses Nuton's sulfide leaching technology, which converts sulfide copper into cathode on-site without requiring concentrate shipment to Asia. This technology allows for a more efficient and cost-effective process, with CEO Craig Hallworth noting that it avoids the costs, emissions, and loss of control associated with traditional smelting.
The mine's commercial production is expected to repay Nuton's investment of over $200 million by mid-2030, after which any remaining balance will fall away. The company is also drawing value from the asset through operating cash flow, including an agreement to add ore tonnage in exchange for $8 million.
Gunnison Copper's main focus, however, remains its larger Gunnison Project, which has a preliminary economic assessment indicating an after-tax net present value of $1.96 billion at an 8% discount rate and a $4.60/lb copper price. The project is expected to produce around 174 million pounds of cathode per year, with potential for optimization to approach 100,000 tonnes annually.
The company plans to bring in a mine builder valued at $10-20 billion through a strategic partnership, starting with a small equity stake. Hallworth estimates that the Johnson Camp mine represents around 5% of the company's total value.