Gunnison Copper (GCUMF) Stock News

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.

Gunnison Copper Corp. (TSX: GCU) (OTCQB: GCUMF) has appointed two new members to its Board of Directors: Jason Howe and Joseph Gallucci. Howe, a CPA with over 20 years of experience, was a co-founder of Capstone Mining Corp. where he led $2 billion in transactions in 2021. Gallucci, an MBA holder and capital markets executive, brings 20+ years of investment banking and equity research experience, currently serving as Managing Director at Laurentian Bank Securities.

These appointments align with Gunnison's strategy to strengthen its leadership with mining professionals having production and finance expertise, as the company prepares for copper production at Johnson Camp Mine in Q3 2025 and advances its open pit development plan.

Gunnison Copper Corp (GCUMF) has successfully completed a Second Amended and Restated Credit Agreement (Second ARCA) with Nebari Natural Resources Credit Fund I LP. The agreement modifies the previous First ARCA dated December 22, 2021, introducing key changes including:

• Suspension of principal amortization from February 1, 2025, to January 1, 2026
• Potential conversion of up to US$6.25 million of principal to equity at US$0.2097 per share
• Mechanism for principal repayment through proceeds from 48C tax credits sale
• Potential maturity date extension through refinancing

The amendments required several conditions, including Toronto Stock Exchange approval, Greenstone Resources L.P. and Triple Flag approval, deferral of convertible debenture interest payments, and commencement of a Gunnison Project optimization work program. All conditions have been met.