Key facts
| Company | Gunnison Copper (TSX: GCU) |
|---|---|
| Commodity | Copper |
| Location | USA |
| Stage | PEA |
About Gunnison Project
The Gunnison Project is located about 65 miles east of Tucson, Arizona on the southeastern flank of the Little Dragoon Mountains in the Cochise Mining District. The property is within the copper porphyry belt of Arizona. The Gunnison Project hosts the Gunnison deposit and contains copper oxide and sulfide mineralization in potentially economic concentrations.The Company completed a PEA in Q4 2024, outlining an open pit heap leach and SX/EW operation extending over 18 years and producing LME Grade A copper cathodes directly onsite.
Mineral resource estimates
3 reported estimates, newest first. Categories are as disclosed by Gunnison Copper; inferred material carries the lowest confidence and cannot support a reserve.
| Category | Tonnes | Cu % | Effective |
|---|---|---|---|
| MeasuredNI 43-101 | 191.3 Mt | 0.37 % | Nov 1, 2024 |
| IndicatedNI 43-101 | 640.2 Mt | 0.29 % | Nov 1, 2024 |
| InferredNI 43-101 | 79.6 Mt | 0.20 % | Nov 1, 2024 |
How the categories differ: Inferred vs Indicated vs Measured. Compare reports over time with the Resource Growth Tracker.
Economic studies
Preliminary economic assessment
Dec 18, 2024- IRR
- 20.9%
- Payback
- 4.1 years
- Initial capex
- US$1343M
- Mine life
- 18 years
Figures as extracted from each study, in US dollars as the studies report them. Open the report before relying on one.
News releases15 on file
Gunnison Copper Launches Major District-Wide Drilling Program to Support Resource Expansion, Metallu...
A district-wide drilling program has been fully contracted at the Gunnison Copper Project and Strong & Harris satellite deposit in Arizona's Cochise Mining District, comprising up to 120 drill holes totaling approximately 138,000 feet (42,000 meters), with rig mobilization expected this month. The program includes up to 36 metallurgical holes (~33,000 feet) and up to 84 resource holes (~105,000 fe
Drill resultsGunnison Copper Announces Closing of Oversubscribed C$34.5 Million Bought Deal Public Offering
A bought deal public offering of 82,144,500 common shares at C$0.42 per share, including full exercise of the 10,714,500-share over-allotment option, closed for gross proceeds of approximately C$34.5 million. The syndicate was led by Canaccord Genuity as sole bookrunner, with Paradigm Capital as co-lead underwriter and Ventum Financial and CIBC Capital Markets. Net proceeds will advance the Gunnis
FinancingGunnison Copper Announces C$30 Million Bought Deal Public Offering
A bought deal public offering of 71,430,000 common shares at C$0.42 each will raise gross proceeds of C$30,000,600, with Canaccord Genuity Corp. as sole bookrunner. Underwriters hold an over-allotment option for up to 10,714,500 additional shares for up to C$4,500,090 in further proceeds, exercisable within 30 days of closing. Proceeds will advance the Gunnison Copper Project in Arizona and fund w
FinancingGunnison Copper Announces Partnership with Arizona State Government and Arizona Commerce Authority
Gunnison Copper has received approval under the Arizona Commerce Authority's Qualified Facility Tax Credit Program for its Arizona operations, providing a non-dilutive refundable state income tax credit funding source. The program supports capital investment and net new full-time employment in Arizona, tied to the Company's copper cathode manufacturing in Cochise County. Gunnison's Johnson Camp As
CorporateGunnison Copper Reports First Quarter 2026 Financial and Operational Results
Q1 2026 results show copper cathode production of 2,106,583 lbs from 655,510 short tons mined at 0.36% copper grade, revenue of US$20,104 thousand, gross profit of US$11,387 thousand and net profit of US$1,666 thousand, or US$0.004 per share. Year to date, Gunnison eliminated its Nebari secured debt from an original US$15 million principal to zero, released a Gunnison Project PEA with an after-tax
CorporateGunnison Copper Promotes Craig Hallworth to CEO and Strengthens Leadership to Advance Flagship Gunni...
Craig Hallworth, previously Senior Vice President and CFO, has been promoted to President and Chief Executive Officer effective May 15, 2026, replacing Dr. Stephen Twyerould, who is retiring from the role after leading the company since 2010 and will remain a director. Fabio Rocha becomes Interim CFO, with additional appointments including Matt Bingham, Olen Aasen, Melissa Mackie, Ron Nunley and P
ManagementLunasonde Completes Airborne Survey, Advancing High-Priority Exploration Target Generation at Gunnis...
Lunasonde has completed an airborne Georadiotomography (aGRT) survey across portions of Gunnison Copper's Cochise Mining District land package in southern Arizona, with data processing underway and initial results expected in the near term. Gunnison plans to integrate the data with existing geological and geophysical datasets to prioritize drill targets. The release also notes a buyback option agr
Drill resultsGunnison Copper Announces Membership in the U.S. Department of War Sponsored Defense Industrial Base...
Gunnison Copper has joined the Defense Industrial Base Consortium (DIBC), a U.S. Department of War initiative, providing access to potential non-dilutive funding opportunities, strategic partnerships and programs supporting U.S.-based critical mineral supply. The company restarted its Johnson Camp Mine in Arizona in 2025, from construction decision to first copper production in under 18 months, su
CorporateGunnison Copper Project PEA Technical Report Reporting Post-Tax NPV8 of ~US$2.0 Billion and IRR of 2...
An NI 43-101 technical report with an effective date of March 18, 2026 has been filed for the updated preliminary economic assessment on the 100%-owned Gunnison Copper Project in Cochise County, Arizona. The PEA outlines an open-pit, heap leach, SX/EW operation with an after-tax NPV8 of about US$2.0 billion, a 22.5% IRR and a 3.9-year payback at $4.60/lb copper, initial capital of $1,556 million,
Study resultsGunnison Copper Announces Retirement of Director Michael Haworth in Conjunction with Divestment of G...
Michael Haworth has retired from Gunnison Copper's Board of Directors, following the previously announced distribution and secondary private placement of shares held by the Greenstone group of funds as the Greenstone Resources II fund winds down. Haworth had served as a director since September 5, 2014 and sat on the Audit Committee and Project Steering Committee as Greenstone's representative. Gu
ManagementGunnison Copper Announces Updated Preliminary Economic Assessment of Its Flagship Gunnison Copper Pr...
An updated NI 43-101 preliminary economic assessment for the 100%-owned Gunnison Copper Project in Cochise County, Arizona, effective February 22, 2026, reports an after-tax NPV8 of $1,952 million, a 22.7% IRR and 3.9-year payback at a $4.60/lb copper price, versus $3,219 million and 32.0% at $5.75/lb spot. The open pit heap leach SX/EW plan covers 541 million tons at 0.43% total copper over a 21-
Study resultsGunnison Copper Announces Distribution of Greenstone Shares
Greenstone Resources II LP and affiliates entered an agreement on February 4, 2026 appointing Paradigm Capital Inc. as agent on a best efforts basis for an offering to institutional investors of up to 143,208,937 Gunnison Copper common shares held by the Greenstone Group, representing 33.88% of the company. Completion is subject to execution of share purchase agreements and is expected on or by Fe
NewsGunnison Copper Eliminates Nebari Debt and Achieves Major Balance Sheet Milestone
All outstanding principal owed to Nebari Natural Resources Credit Fund I LP has been eliminated, reduced from US$15.0 million to zero. The final step was conversion notices totalling US$4.75 million at a conversion price of US$0.2097 per share (converted from C$0.30), issuing 22,651,407 common shares under the Second Amended and Restated Credit Agreement. Combined with the previously announced US$
NewsGunnison Copper Announces That Rio Tinto and Amazon Web Services Collaborate to Bring Low-Carbon Nut...
Amazon Web Services will become the first customer for Rio Tinto's Nuton bioleaching technology, using the first Nuton copper produced at Gunnison Copper's Johnson Camp Mine in Arizona in components of its U.S. data centres, and providing cloud-based data and analytics support to optimise the technology at the site. The first industrial-scale Nuton deployment occurred at Johnson Camp last month. T
CorporateGunnison Copper Enters into Collaboration Framework Agreement with Lunasonde to Perform Initial Surv...
A Collaboration Framework Agreement with Lunasonde Inc. will see Lunasonde deploy Airborne Georadiotomography technology for an initial high-resolution subsurface survey over a defined portion of Gunnison's mineral property in the Cochise Mining District, southern Arizona, including test and calibration flights followed by data processing and three-dimensional imaging of anomalies. Gunnison also r
Corporate