Mr. David Greenway reports

COPPER ONE ANNOUNCES AGREEMENT TO ACQUIRE 100% INTEREST IN THE MAJUBA HILL COPPER-SILVER-GOLD PROJECT, NEVADA

Copper One Resources Corp. has entered into an amendment agreement and commenced the closing process to acquire a 100-per-cent interest in the Majuba Hill copper-silver-gold project, located in Pershing county, Nevada, a well-established mining jurisdiction in the United States.

The transaction terms set out in the agreement provide for the acquisition of the project for a cash purchase price of $1.3-million (U.S.). Compared with the consideration contemplated under the original option framework, the amended transaction terms represent a reduction of approximately $2.7-million (U.S.) (approximately $3.8-million (Canadian)) in the purchase price payable by the company.

Majuba Hill is Copper One's American flagship copper asset. The company believes full control of the project is an important step toward advancing a Nevada-based copper opportunity at a time when the United States and its allies are increasingly focused on secure, domestic and responsible sources of copper for power, infrastructure, electrification, advanced manufacturing, data centres and national security supply chains.

The acquisition will provide Copper One with 100-per-cent ownership of Majuba Hill, subject to the completion of closing documentation and customary closing conditions. The company believes that securing a 100-per-cent interest in the project will provide greater flexibility to advance exploration activities, refine drill targeting, evaluate potential strategic alternatives and position Majuba Hill within an evolving North American copper market.

"We are pleased to move toward securing 100-per-cent ownership of the Majuba Hill project," said David Greenway, president and chief executive officer of Copper One Resources.

"Full ownership of Majuba Hill provides the company with increased flexibility to advance exploration activities, refine drill targeting and evaluate future development opportunities. We believe the project represents a significant exploration opportunity in Nevada, a leading mining jurisdiction, at a time when global demand for copper continues to be driven by electrification, power infrastructure, advanced manufacturing, data centres and energy transition initiatives. As concerns regarding a looming copper shortage continue to be discussed across the industry, we believe that consolidating ownership of Majuba Hill strengthens Copper One's position to advance the project and pursue long-term value creation for shareholders."

Transaction summary

Pursuant to the amendment, the purchase price payable on exercise of the option has been amended to $1.3-million (U.S.) in cash. The closing is expected to be completed pursuant to escrow instructions and related conveyance documents, including an assignment and deed with reservation of royalty, bill of sale and related closing deliverables.

Upon completion, the project is expected to be held through BAM BAM Nevada Inc., a Nevada corporation and wholly owned subsidiary of Copper One.

The company will provide additional updates as closing is completed and as exploration plans for Majuba Hill advance.

Copper One views the negotiated amendment as a major achievement for shareholders. By reducing the purchase price, representing a reduction of approximately $2.7-million (U.S.) from the purchase consideration contemplated under the original option framework, the company believes it has strengthened its ability to focus capital on technical work, exploration planning, drilling and long-term advancement of Majuba Hill.

About the Majuba Hill copper-silver-gold deposit, Nevada

Majuba Hill is Copper One's flagship copper-silver-gold exploration project, located in Pershing county, Nevada. Nevada ranked first globally in the Fraser Institute's annual survey of mining companies 2025.

The Majuba Hill project is in Pershing county, Nevada, a well-established mining region with extensive infrastructure and a long history of mineral exploration and development.

The Majuba Hill property covers approximately 9,684 acres and is located about 113 road kilometres, or 70 miles, southwest of Winnemucca, Nev., and 251 kilometres, or 156 miles, northeast of Reno. The project is accessible by well-maintained county roads from the Imlay, Nev., exit on U.S. Interstate 80, followed by an approximately 23-mile drive west. Access to people, roads, power and water are fundamental considerations for advancing mineral projects, and Majuba Hill benefits from a strong infrastructure foundation in each of these areas. This represents a meaningful potential advantage compared with more remote projects, where infrastructure can be a major cost and development hurdle.

Majuba Hill is a historical producer with a substantial exploration database, including approximately 89,395 feet of drilling completed to date. Based on current drilling cost assumptions, the rough replacement value of this historical drilling is estimated at approximately $12.1-million (U.S.), providing Copper One with a valuable technical foundation as it continues to advance the project.

Recent select drilling at the Majuba Hill project

Readers are cautioned that drill results are historical in nature and have not been independently verified by Copper One. Additional details regarding these drill results, including QA/QC (quality assurance/quality control) procedures, sampling methodologies and technical disclosure, are available in the following news releases.

MHB-30:  news release dated Sept. 24, 2024

MHB-32:  news release dated May 22, 2025

MHB-34:  news release dated June 9, 2025

Exploration work at Majuba Hill has identified indications of a potentially large copper, silver and gold mineralized system, with geological characteristics consistent with porphyry-style copper mineralization. The company believes Majuba Hill represents a compelling exploration opportunity in a top-tier jurisdiction, supported by scale, access, infrastructure, historical work and meaningful copper exploration potential.

Copper market context

Recent copper price forecasts and market commentary from major financial institutions continue to highlight the strength of the copper market backdrop. Market reporting published in June, 2026, reported that Goldman Sachs now sees copper prices at $13,735 (U.S.) per metric tonne by the end of 2026 (1), more than 10 per cent above its previous target of $12,465 (U.S.) per metric tonne. Reuters also reported in April, 2026, that Goldman Sachs maintained a forecast for copper to average $12,650 (U.S.) per metric tonne in 2026. Goldman Sachs Research has also published a longer-term copper forecast of $15,000 (U.S.) per metric tonne by 2035, while identifying grid and power infrastructure, including AI- (artificial intelligence) and defence-related energy demand, as key structural copper demand drivers.

Citi has also published a constructive copper outlook. Market reporting published in June, 2026, reported that Citigroup had targeted $14,500 (U.S.) per metric tonne sometime in June, 2026, and $15,000 (U.S.) per metric tonne within one year, citing weaker supply growth, resilient demand from AI and the energy transition, and lingering concerns around U.S. refined copper tariffs (2).

Copper One cautions that commodity price forecasts are provided for market context only. They do not imply that Majuba Hill has demonstrated economic viability, that a mineral resource will be defined or that future commodity prices will be achieved.

Technical disclosure and qualified persons

Technical aspects of this news release with respect to Majuba Hill have been reviewed and approved by E.L. Buster Hunsaker III, CPG 8137, designated as a qualified person under National Instrument 43-101, Standards of Disclosure for Mineral Projects.

Market awareness

The company has entered into an agreement with Gold Standard Media LLC (GSM), a Texas-based media firm. Under the agreement dated June 19, 2026, GSM will provide marketing and promotional services for a total consideration of up to $1-million (U.S.) for a period of six months. GSM has a business address located at 723 W University Ave., Georgetown, Tex., 78626, and can be contacted at 1 512-843-1723 or ceo@goldstandardir.com. GSM and its principals are arm's length from the company. The company shall not issue options or other securities in consideration for GSM's services.

Restricted share units (RSUs)

The company further announces its intention to enter into RSU agreements with consultants, directors and officers for a total of three million RSUs pursuant to the company's omnibus incentive plan adopted by the board of directors on Oct. 9, 2025, and further ratified and approved by the company's shareholders on Dec. 4, 2025.

About Copper One Resources Corp.

Copper One Resources focuses on advancing copper, copper/silver/gold and critical metals projects in North America to support growing demand driven by electrification, AI infrastructure, renewable energy and grid modernization. The company's flagship asset is the Majuba Hill copper-silver-gold district in Nevada, located approximately 156 miles (251 kilometres) from Reno. Copper One also holds an option to earn up to a 100-per-cent interest in the Redhill property, a copper-focused exploration opportunity located south of Ashcroft, B.C., within the Kamloops mining district. The project covers approximately 4,736.38 hectares across 18 mineral claims and is prospective for volcanogenic massive sulphide mineralization, a deposit style commonly associated with copper, zinc, silver and gold. In addition, the company owns the 100-per-cent-owned Redonda copper-molybdenum project, a district-scale porphyry-style copper-molybdenum exploration asset located near Campbell River within British Columbia's Vancouver mining division, covering approximately 2,746.46 hectares across nine mineral claims.

Copper One Resources is advancing its projects through systematic exploration and technical evaluation, with a focus on responsible exploration practices, technical transparency and long-term value creation.

(1) Goldman Sachs Research, "Copper Prices Are Forecast to Decline Somewhat from Record Highs in 2026," Dec. 11, 2025.

(2) Mining.com, "Copper price: Goldman, Citi make bullish calls on supply woes," June 2, 2026. The article reported that Goldman Sachs saw copper prices at $13,735 (U.S.) per metric tonne by the end of 2026 and that Citi targeted $14,500 (U.S.) per metric tonne in June, 2026, and $15,000 (U.S.) per metric tonne within one year.

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