Gunnison Copper Corp. reports developments tied to its Arizona copper asset base, including the 100%-owned Gunnison Copper Project in the Cochise Mining District and activity at the Johnson Camp Mine. Company updates commonly cover NI 43-101 technical reports, preliminary economic assessments, open-pit and heap leach SXEW development plans, copper cathode production, and the use of Nuton bioleaching technology at Johnson Camp.
Recurring news also includes balance-sheet actions, shareholder and board changes, leadership appointments, permitting and technical work, and participation in U.S. critical-minerals supply-chain initiatives. Gunnison describes itself as a multi-asset pure-play copper developer and producer controlling deposits in the Southern Arizona Copper Belt.
Gunnison Copper (GCUMF) has received pre-clearance for a proposed NYSE American listing, with trading expected in late October 2026. The planned Level II American Depositary Receipt (ADR) program would use ticker GUNN, with each ADR representing 35 common shares. SEC registration effectiveness and final listing approvals remain pending; pre-clearance is not final approval.
Johnson Camp Mine has annual capacity of up to 25 million pounds of finished copper cathode. The Gunnison Project's March 2026 preliminary economic assessment estimates average annual production of 174 million pounds during its first 15 years. Potential combined output is nearly eight times Johnson Camp's capacity, subject to project development and continued Johnson Camp operation at capacity. Gunnison currently supplies the U.S. defense sector and Amazon Web Services and intends to accelerate Gunnison Project engineering, permitting and development.
Gunnison Copper (GCUMF) appointed former Hudbay Minerals Chief Operating Officer Andre Lauzon to its board of directors.
Lauzon brings more than 30 years of mining experience, including work on Arizona's Rosemont and Copper World projects. Gunnison is advancing its Gunnison Copper Project through engineering, optimization, permitting and development.
A subsidiary of Triple Flag Precious Metals also converted the remaining US$1.5 million debenture principal at US$0.19 per share into 7,894,736 common shares. It converted US$545,753 of accrued interest into another 1,641,193 common shares. The debenture is fully satisfied, leaving Gunnison with no outstanding debt.
Gunnison Copper (GCUMF) appointed Jennifer Hays chief financial officer, effective October 12, 2026, succeeding interim CFO Fabio Rocha.
Rocha will be promoted from director to senior director of accounting and reporting. Hays most recently served as CFO of PacSci EMC, a U.S. defense and space company within Ralliant. She previously spent approximately 17 years at Intel in finance roles that included government contracting, manufacturing and supply chains. At PacSci EMC, she helped secure a US$27 million Defense Industrial Base Consortium award to expand production capacity.
Gunnison Copper (GCUMF) has been recognized by Arizona Governor Katie Hobbs after securing approval under the state's Qualified Facility Tax Credit (QFTC) Program tied to job creation at Johnson Camp Mine.
The company created 81 qualifying jobs in 2025 and expects to receive US$1.62 million in refundable, non-dilutive state income tax credits in Q4 2026. It plans to create an additional 19 qualifying jobs in 2026, which are expected to generate a further US$0.38 million in refundable tax credits in Q4 2027. In total, the QFTC Program is expected to provide US$2.0 million in cash funding based on the creation of 100 jobs at Johnson Camp, supporting Gunnison's U.S. copper production and development strategy.
Gunnison Copper (GCUMF) reported that its Johnson Camp Mine in Cochise County, Arizona, achieved commercial production in September 2026 after meeting required operating thresholds.
Johnson Camp produced 1,304,448 pounds of copper cathode in August 2026, the highest monthly output since operations restarted, followed by 894,767 pounds from September 1–17, 2026. This sustained performance underpins the commercial production determination. The mine has a nameplate capacity of up to 25 million pounds of copper cathode per year, which the company is continuing to ramp up toward while also advancing its flagship Gunnison Project toward development.
Gunnison Copper (GCUMF) has submitted an amendment to the Mined Land Reclamation Plan (MLRP) for its open-pit Gunnison Project in Cochise County, Arizona, and expects approval by year-end 2026.
The MLRP amendment is one of three principal state permit amendments needed, alongside Aquifer Protection Permit (APP) and Air Quality Permit (AQP) amendments. The company plans to file the APP amendment in Q1 2027, with an anticipated 12‑month review leading to final approval by Q1 2028, and to submit the AQP amendment in mid‑2027, targeting approval by mid‑2028. In parallel, Gunnison intends to start the process to relocate a portion of Interstate 10 with a Letter of Intent to ADOT this quarter and aims for Design Concept Report approval by end‑2027, supporting a potential fully permitted project and Final Investment Decision by mid‑2028.
Gunnison Copper (GCUMF) agreed with Nuton LLC to revise the Stage 2 mine plan at the Johnson Camp Mine, adding approximately 3 million tons of mineralized material between 2027 and 2029 while keeping the existing schedule.
Nuton will make a US$8 million payment to Gunnison, expected in Q4 2026, reflecting value from the optimized plan and continued commitment to the Johnson Camp demonstration project. The revised plan is expected to preserve critical operational capabilities and workforce through the demonstration period, supporting operational continuity and future project opportunities. Gunnison also elected not to proceed with conditionally awarded U.S. Department of Energy 48C tax credits.
Gunnison Copper (OTCQB: GCUMF) reported progress on its 2026 district-wide drill program at the Gunnison Copper Project in Arizona. Two drill rigs are currently active, and the initial phase of metallurgical drilling at the Gunnison deposit is complete, with core submitted to independent labs for analysis. Metallurgical drilling has now started at the Strong & Harris deposit, and 68 of a planned 405 column leach tests, plus 63 flotation tests for copper, zinc and silver, are underway.
The 2026 program plans up to 120 drill holes totaling about 138,000 feet (42,000 meters) and over US$15 million in investment. A new core logging and storage facility is expected to be finished by September, enabling an increase from two to six drill rigs. The company expects preliminary drill results in Q4 2026 and full results by mid‑2027.
Gunnison Copper (OTCQB: GCUMF) reported Q2 2026 revenue of US$23.6 million and net income of US$13.1 million (EPS US$0.03), up from minimal revenue and a net loss a year earlier, as Johnson Camp continued ramping into active operations.
Quarterly revenue included US$13.7 million from copper cathode sales and US$9.8 million of deferred mining and processing demonstration service revenue. Material mined rose to 1.39 million short tons with copper cathode production of about 2.0 million pounds. Year-to-date revenue reached US$43.7 million with net income of US$14.8 million. Gunnison closed an oversubscribed C$34.5 million bought deal equity offering to advance the Gunnison Copper Project and working capital, launched a district-wide drilling and metallurgical program of up to 120 holes (~42,000 meters) supporting a PFS targeted for H1 2028, advanced permitting and tax credit monetization, and ended the quarter with US$33.2 million in cash.
Gunnison Copper (TSX: GCU, OTCQB: GCUMF) reported that President and CEO Craig Hallworth attended the American Mining Industry and Critical Minerals Roundtable hosted by President Donald Trump at the U.S. Department of State in Washington, D.C. on August 7, 2026.
The event gathered senior U.S. officials and American mining, academic, and industry leaders to discuss strengthening domestic critical mineral supply chains, national security, and expanded U.S. mining and processing capacity. According to Gunnison Copper, President Trump announced approximately US$3 billion in new investments and financing initiatives to support domestic critical minerals and battery supply chains as part of a broader strategy to boost U.S. critical mineral production, advanced manufacturing, and mining education.