Welcome to our dedicated page for Gunnison Copper news (Ticker: GCUMF), a resource for investors and traders seeking the latest updates and insights on Gunnison Copper stock.
The news feed for Gunnison Copper Corp. (GCUMF) highlights the company’s evolution as a multi-asset copper developer and producer in the Southern Arizona Copper Belt. Recent announcements emphasize operational milestones at the Johnson Camp Mine, technical progress at the Gunnison Copper Project, district-scale exploration initiatives and key financing and corporate developments.
News releases describe Johnson Camp’s transition from care-and-maintenance to a fully operational mine, including first copper production and the first sales of pure copper cathode from southeast Arizona. Gunnison reports that Johnson Camp has a production capacity of up to 25 million pounds of finished copper cathode annually and that copper revenues from Johnson Camp initially accrue to Nuton LLC, a Rio Tinto venture, until Nuton has received payback of its funding for the asset.
Coverage also focuses on the deployment of Rio Tinto’s Nuton bioleaching technology at Johnson Camp and its role in producing 99.99% pure copper cathode at the mine gate without traditional concentrators, smelters and refineries. A collaboration between Nuton and Amazon Web Services is highlighted, under which AWS uses the first Nuton copper produced at Johnson Camp in components of its U.S. data centres and provides cloud-based data and analytics support to optimise Nuton’s technology.
Additional Gunnison Copper news includes updates on the Gunnison Project’s High-Value-Add Work Program, such as limestone evaluation for potential industrial by-products, preliminary economic impact findings from a University of Arizona study, a non-binding Letter of Intent with Lunasonde to test airborne subsurface imaging across the Cochise Mining District, balance sheet developments involving the Nebari credit facility, private placement financing plans, and corporate announcements regarding board and management changes.
Investors and observers can use this news stream to follow operational performance at Johnson Camp, technical and economic studies at the Gunnison Project, district-scale exploration partnerships and the company’s financing and corporate strategy.
Gunnison Copper (TSX: GCU; OTCQB: GCUMF) announced a non-brokered private placement to raise up to C$15.0 million by issuing up to 33,333,333 Units at C$0.45 per Unit. Each Unit includes one common share and one-half warrant; each full warrant is exercisable at C$0.65 for 36 months. Net proceeds are allocated to drilling, metallurgical testing, permitting for a pre-feasibility study, US head office G&A, partial repayment of debt to Nebari, and working capital. Closings are expected on or around October 29, 2025, subject to TSX and regulatory approvals. Up to 24,858,878 Units will be offered as "LIFE Units" and are expected to be immediately freely tradeable in Canada; remaining Units are subject to a four-month hold in Canada.
Gunnison Copper (OTCQB: GCUMF, TSX: GCU) promoted Robert Winton to Chief Operating Officer effective October 9, 2025. Winton, with more than 25 years of mining experience, guided the Johnson Camp Mine restart from care-and-maintenance to first copper production and commercial sales in 2025.
As COO he will oversee site operations, project development, and upcoming work programs, and continue coordination with Nuton LLC (a Rio Tinto venture) where first copper via advanced bio-leaching is expected later in 2025. The promotion follows Johnson Camp reaching production within one year of breaking ground.
Gunnison Copper (OTCQB: GCUMF) released preliminary results of a University of Arizona economic impact study dated October 8, 2025, estimating a $14.6 billion cumulative present‑value output across the U.S. over the life of the Gunnison Project. The study forecasts 53,521 job‑years and $2.07 billion in labor income nationally, with $10.01 billion output in Arizona and $9.02 billion in District 6 (including Cochise County).
The release notes average annual direct revenue of $625 million and combined national annual output of $1.43 billion. The company cautions these are forecasted impacts contingent on feasibility, financing and permitting. The company also announced an initial $500,000 Nebari conversion at US$0.2097, issuing 2,384,358 common shares and reducing the Second ARCA principal.
Gunnison Copper Corp. (OTCQB: GCUMF) has achieved a significant milestone with its first copper sales from the Johnson Camp Mine (JCM) in Arizona. The company sold 225,371 pounds of copper cathode at US$4.64 per pound, generating gross proceeds of US$1,046,194.
The mine, which began production in late August 2025, has a nameplate capacity of 25 million pounds of copper cathode annually. The facility will implement Nuton's bio-leaching technology later this year, marking the first large-scale deployment of this innovative Rio Tinto venture. JCM's production contributes to domestic supply chains, supporting American energy independence and manufacturing sectors.
Gunnison Copper (OTCQB: GCUMF) has signed a non-binding Letter of Intent with Lunasonde Inc., a defense technology start-up, to test innovative airborne subsurface imaging technology for mineral exploration. The partnership will focus on exploring Gunnison's district-scale land package in southeastern Arizona's Cochise Mining District for copper, critical minerals, and rare earth elements.
The collaboration aims to leverage Lunasonde's experimental Airborne Georadiotomography (aGRT) technology to identify new mineral targets beneath thick alluvial cover. The parties plan to seek funding through the U.S. Department of Energy's ROCKS Program. The district is known to potentially host at least 12 critical minerals important to the US supply chain.
Gunnison Copper (OTCQB: GCUMF) reported positive results from its mineral sorting test program at the Gunnison Copper Project in Arizona. The tests demonstrated a significant 75% reduction in acid consumption while maintaining copper recovery rates. Testing on Martin Formation samples, which comprises 44% of the resource base, showed that over 90% of internal acid-consuming waste was successfully removed using optical mineral sorting.
Key results include: 57% of the sample sorted to mineralized material with 0.62% total copper content, while 43% sorted to waste with minimal copper loss. The process could potentially remove about 40% of mined Martin Formation as waste, effectively doubling the process head grade and reducing operating costs. The company plans to incorporate these results into an updated preliminary economic assessment expected in Q1 2026.
Gunnison Copper Corp. (OTCQB: GCUMF) announced its participation in a live virtual corporate update hosted by Red Cloud Financial Services on September 15th, 2025 at 2:00 PM ET.
During the presentation, senior management will discuss several key topics including: first copper production at Johnson Camp Mine, the Gunnison Project's PEA results, exploration opportunities in the Cochise Mining District, and the importance of domestic copper production. A live Q&A session will follow the presentation.
Gunnison Copper Corp. (OTCQB: GCUMF) has achieved a significant milestone by commencing copper cathode production at the Johnson Camp Mine in Arizona, developed in collaboration with Nuton LLC, a Rio Tinto venture. This development establishes Gunnison as America's newest copper producer.
CEO Craig Hallworth highlighted the company's compelling valuation metrics in an interview with CEO.CA's 'Inside the Boardroom' series. While Arizona copper peers trade at 0.3-0.4x price-to-net asset value, Gunnison trades at just 0.1x, despite having both active production and a development project with a $1.3 billion NPV.
Gunnison Copper Corp. (OTCQB: GCUMF) has achieved a significant milestone by commencing its first copper cathode production at the Johnson Camp Mine (JCM) in southeast Arizona ahead of schedule in August 2025. This development establishes Gunnison as America's newest copper producer.
The company successfully started its solvent extraction (SX) and electrowinning (EW) circuit, with production ramping up toward a nameplate capacity of 25 million pounds of finished copper cathode annually. The project is fully funded and supported by Nuton LLC, a Rio Tinto venture, and received $13.9 million in 48C tax credits from the Department of Energy.
The commissioning was completed with an excellent safety record, marking a crucial step in strengthening domestic copper supply for American energy independence and manufacturing capabilities.
Gunnison Copper (OTCQB: GCUMF) has announced the successful start-up of its solvent extraction (SX) plant and electrowinning (EW) circuit at the Johnson Camp Mine in Arizona, with first copper sales anticipated in September 2025. The project, partially funded by Nuton LLC, a Rio Tinto venture, is progressing ahead of schedule.
Key operational milestones include the commencement of leaching operations with copper-rich solution being pumped to the SX-EW plant, the start of the SX Plant, and the initialization of the EW Circuit for copper plating. Additional progress includes the ongoing leach pad construction, installation of an on-pad crushing circuit, and the successful commissioning of a new LNG system at the EW plant.