Gunnison Copper Stock Price, News & Analysis

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.

Gunnison Copper (OTCQB: GCUMF) has announced the commencement of mineral processing at its Johnson Camp Mine (JCM) in southeast Arizona, with first copper sales anticipated in September 2025. The company achieved a significant milestone by initiating copper leaching on July 18, approximately one year after beginning leach pad construction.

Key operational updates include: completion of leach pad Phase-2 and Phase-3, construction of conveyors, finished overflow pond construction, and completion of pipelines from leach pads to the SX/EW plant. The company expects first copper cathode production from Run-of-mine (ROM) oxide using conventional leach technology in September, while first copper using Nuton technology is anticipated by year-end.

The project maintains an impressive 11-year no lost time accident record with over 100 employees and contractors on site.

Gunnison Copper Corp. (OTCQB: GCUMF) held its 2025 Annual General Meeting on June 26, 2025, in Vancouver, B.C. Shareholders elected six directors to the board with overwhelming support, each receiving over 99% approval. The elected directors include Stephen Twyerould, Colin Kinley, Fred DuVal, Michael Haworth, Joseph Gallucci, and Jason Howe.

Shareholders also approved setting the board size at six members and appointed PricewaterhouseCoopers LLP as the company's auditors.

Gunnison Copper Corp (GCUMF) reports progress on high-value-add (HVA) work programs at its Gunnison Copper Project in Arizona. The programs, running on-time and under-budget, focus on potential revenue streams from by-products and resource optimization. Key initiatives include evaluating 760M tons of alluvial gravel that could generate $380M in revenue if 10% is sold at $5/ton, and 85M tons of Escabrosa limestone with potential $850M revenue if 50% sells at $20/ton. The company completed 3,899 feet of drilling targeting oxide mineralization, with ongoing LIBS scanning and mineralogical testing. The project's sulfide potential is being investigated, with recent drilling intersecting copper sulfide mineralization. Permitting processes are advancing with Trinity Consultants and Clear Creek, building on Gunnison's strong permitting track record. The company aims to enhance project economics through these initiatives while preparing for an upcoming pre-feasibility study.

Gunnison Copper Corp (GCUMF) has announced significant progress at its Johnson Camp Mine in Arizona, with mineral processing set to begin in July 2025 and first copper sales expected in September. The company has completed Phase-1 of the leach pad construction, with Phase-2 expected soon. Mining operations have already begun with material being stockpiled. Infrastructure development is proceeding as planned, including haul road construction, PLS sump installation, and pipeline completion to the SX/EW plant. The company plans to implement both conventional leach technology for initial ROM production and Nuton technology, with the latter expected to produce copper before year-end. The project represents a strategic addition to America's copper production capacity, supporting energy and defense security needs.