Gunnison Copper Repays US$7.3 Million of Nebari Secured Debt, Fully Eliminating Non-Convertible Portion of Second ARCA

Rhea-AI Summary

Gunnison Copper (OTCQB: GCUMF) announced on December 1, 2025 that it has fully repaid the US$7.3 million non-convertible principal portion of the Second Amended and Restated Credit Agreement (Second ARCA) with Nebari Natural Resources Credit Fund I LP.

Following the repayment, the only remaining balance under the Second ARCA is a $5.25 million convertible principal amount that Nebari retains the right to convert to equity under previously announced terms. Management said the repayment advances its goal of strengthening the balance sheet, improving financial flexibility, and moving toward fully retiring the remaining Nebari secured debt.

Positive

• Non-convertible debt repaid: US$7.3 million eliminated
• Remaining Nebari balance: $5.25 million convertible principal only
• Balance-sheet focus: Management cites improved financial flexibility

Negative

• Convertible exposure remains: $5.25 million subject to conversion rights

Major Deleveraging Milestone Achieved as Company Moves to Fully Eliminate Nebari Debt

Phoenix, Arizona--(Newsfile Corp. - December 1, 2025) - Gunnison Copper Corp. (TSX: GCU) (OTCQB: GCUMF) (FSE: 3XS0) ("Gunnison" or the "Company") is pleased to announce that it has fully repaid the US$7.3 million non-convertible principal portion of the Second Amended and Restated Credit Agreement ("Second ARCA") with Nebari Natural Resources Credit Fund I LP ("Nebari"). All amounts in this news release are in United States dollars unless otherwise noted.

Following this repayment, the only remaining balance outstanding under the Second ARCA is the $5.25 million convertible principal amount, which Nebari retains the right to convert to equity under the previously announced terms and is less than the net proceeds expected through the monetization of the 48C tax credits.

"Reducing and ultimately eliminating debt has been a core objective of management," said Craig Hallworth, Senior Vice President and Chief Financial Officer of Gunnison Copper. "Fully repaying the non-convertible portion of the Nebari financing marks a major step forward in strengthening our balance sheet and capital structure. This achievement enhances our financial flexibility and advances our goal of fully retiring the remaining Nebari secured debt."

ABOUT GUNNISON COPPER

Gunnison Copper Corp. is a multi-asset pure-play copper developer and producer that controls the Cochise Mining District (the district), containing 12 known deposits within an 8 km economic radius, in the Southern Arizona Copper Belt.

Its flagship asset, the Gunnison Copper Project, has a Measured and Indicated Mineral Resource containing over 831.6 million tons with a total copper grade of 0.31% (Measured Mineral Resource of 191.3 million tons at 0.37% and Indicated Mineral Resource of 640.2 million tons at 0.29%), and a preliminary economic assessment ("PEA") yielding robust economics including an NPV8% of $1.3 billion, IRR of 20.9%, and payback period of 4.1 years. It is being developed as a conventional operation with open pit mining, heap leach, and SX/EW refinery to produce finished copper cathode on-site with direct rail link.

The PEA is preliminary in nature and includes Inferred Mineral Resources that are considered too speculative geologically to have the economic considerations applied to them that would enable them to be categorized as mineral reserves. There is no certainty that the conclusions reached in the PEA will be realized. Mineral Resources that are not Mineral Reserves do not have demonstrated economic viability.

In addition, Gunnison's Johnson Camp Asset, which is now in production, is fully funded by Nuton LLC, a Rio Tinto Venture, with a production capacity of up to 25 million lbs of finished copper cathode annually.

Other significant deposits controlled by Gunnison in the district, with potential to be economic satellite feeder deposits for Gunnison Project infrastructure, include Strong and Harris, South Star, and eight other deposits.

For additional information on the Gunnison Project, including the PEA and mineral resource estimate, please refer to the Company's technical report entitled "Gunnison Project NI 43-101 Technical Report Preliminary Economic Assessment" dated effective November 1, 2024 and available on SEDAR+ at www.sedarplus.ca.

Dr. Stephen Twyerould, Fellow of AUSIMM, President and CEO of the Company is a Qualified Person as defined by NI 43-101. Dr. Twyerould has reviewed and is responsible for the technical information contained in this news release.

For more information on Gunnison, please visit our website at www.GunnisonCopper.com.

For further information regarding this press release, please contact:

Gunnison Copper Corp.
Concord Place, Suite 300, 2999 North 44th Street, Phoenix, AZ, 85018

Melissa Mackie
T: 647.533.4536
E: info@GunnisonCopper.com
www.GunnisonCopper.com

CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS:

Certain statements contained in this release constitute forward-looking information within the meaning of applicable Canadian securities laws. Such forward-looking statements relate to the intention to deploy the Nuton® technology at the Johnson Camp mine and future production therefrom; the continued funding of the stage 2 work program by Nuton; the details and expected results of the stage two work program; future production and production capacity from the Company's mineral projects; the results of the preliminary economic assessment on the Gunnison Project; plans to fully retire the remaining Nebari debt; and the exploration and development of the Company's mineral projects.

In certain cases, forward-looking information can be identified by the use of words such as "plans", "expects" or "does not expect", "budget", "scheduled", "estimates", "forecasts", "intends", "anticipates" or "does not anticipate", or "believes", or variations of such words and phrases or state that certain actions, events or results "may", "could", "would", "might", "occur" or "be achieved" suggesting future outcomes, or other expectations, beliefs, plans, objectives, assumptions, intentions or statements about future events or performance. Forward-looking information contained in this news release is based on certain factors and assumptions regarding, among other things, Nuton will continue to fund the stage 2 work program, Nebari will convert the remaining principal amount of the Second ARCA, the availability of financing to continue as a going concern and implement the Company's operational plans, expectations regarding the receipt of 48C tax credits, the estimation of mineral resources, the realization of resource and reserve estimates, copper and other metal prices, the timing and amount of future development expenditures, the estimation of initial and sustaining capital requirements, the estimation of labour and operating costs (including the price of acid), the availability of labour, material and acid supply, receipt of and compliance with necessary regulatory approvals and permits, the estimation of insurance coverage, and assumptions with respect to currency fluctuations, environmental risks, title disputes or claims, and other similar matters. While the Company considers these assumptions to be reasonable based on information currently available to it, they may prove to be incorrect.

Forward-looking information involves known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of the Company to be materially different from any future results, performance or achievements expressed or implied by the forward-looking information. Such factors include risks related to the Company not obtaining adequate financing to continue operations, Nebari not converting the remaining principal amount of the Second ARCA and the Company not having sufficient funds to repay such amount, the Company receives less 48C tax credits than expected, Nuton failing to continue to fund the stage 2 work program, the breach of debt covenants, risks inherent in the construction and operation of mineral deposits, including risks relating to changes in project parameters as plans continue to be redefined including the possibility that mining operations may not be sustained at the Gunnison Copper Project, risks related to the delay in approval of work plans, variations in mineral resources and reserves, grade or recovery rates, risks relating to the ability to access infrastructure, risks relating to changes in copper and other commodity prices and the worldwide demand for and supply of copper and related products, risks related to increased competition in the market for copper and related products, risks related to current global financial conditions, risks related to current global financial conditions on the Company's business, uncertainties inherent in the estimation of mineral resources, access and supply risks, risks related to the ability to access acid supply on commercially reasonable terms, reliance on key personnel, operational risks inherent in the conduct of mining activities, including the risk of accidents, labour disputes, increases in capital and operating costs and the risk of delays or increased costs that might be encountered during the construction or mining process, regulatory risks including the risk that permits may not be obtained in a timely fashion or at all, financing, capitalization and liquidity risks, risks related to disputes concerning property titles and interests, environmental risks and the additional risks identified in the "Risk Factors" section of the Company's reports and filings with applicable Canadian securities regulators.

Although the Company has attempted to identify important factors that could cause actual actions, events or results to differ materially from those described in forward-looking information, there may be other factors that cause actions, events or results not to be as anticipated, estimated or intended. Accordingly, readers should not place undue reliance on forward-looking information. The forward-looking information is made as of the date of this news release. Except as required by applicable securities laws, the Company does not undertake any obligation to publicly update or revise any forward-looking information.

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/276538

FAQ

What did Gunnison Copper announce on December 1, 2025 about Nebari debt (GCUMF)?

Gunnison announced it fully repaid the US$7.3 million non-convertible portion of the Second ARCA with Nebari.

How much Nebari debt remains outstanding for Gunnison Copper (GCUMF)?

The only remaining balance is a $5.25 million convertible principal amount.

Does Nebari still have the right to convert debt to equity for GCUMF?

Yes. Nebari retains the right to convert the $5.25 million convertible principal under the previously announced terms.

How does the US$7.3 million repayment affect Gunnison Copper's balance sheet (GCUMF)?

Management says the repayment strengthens the balance sheet and enhances financial flexibility.

When was the non-convertible portion of Nebari debt repaid by Gunnison Copper (GCUMF)?

The company announced the repayment on December 1, 2025.