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Gunnison Copper Announces Johnson Camp SX Plant Start-Up with First Copper Sales in September
Newsfile· 2025-08-11 10:30
Core Insights - Gunnison Copper Corp. has successfully started the solvent extraction (SX) plant and electrowinning (EW) circuit at the Johnson Camp Mine, with first copper sales anticipated in September 2025 [1][2] Company Progress - The startup of the SX-EW plant was completed ahead of schedule, marking a significant milestone towards achieving copper cathode sales [2] - Construction activities at the Johnson Camp Mine, funded by Nuton LLC (a Rio Tinto venture), are progressing as planned, with the final phase of the leach pad construction on schedule [2] - The on-pad crushing circuit has been installed and is undergoing commissioning, while the agglomerator and processing equipment are also being finalized [2] Production Capacity - The Johnson Camp Asset is expected to produce up to 25 million pounds of finished copper cathode annually, with first production slated for Q3 2025 [13] Resource and Economic Assessment - The Gunnison Copper Project has a Measured and Indicated Mineral Resource of over 831.6 million tons with a total copper grade of 0.31%, and a preliminary economic assessment (PEA) indicates a net present value (NPV) of $1.3 billion and an internal rate of return (IRR) of 20.9% [11][12] Environmental and Technological Aspects - Nuton’s innovative leaching technologies aim to enhance copper recovery rates and support domestic production, contributing to a more sustainable mining operation with lower energy and water requirements [15][16]