Copper One Announces Filing Of Amended And Restated Offering Document In Connection With Non-Brokered Listed Issuer Financing Exemption Offering

Vancouver - Copper One Resources Corp. ("Copper One" or the "Company") (CSE:CEXY | OTCID:CEXYF | FSE:IW8 | WKN: A42AGR) announces that it has filed an amended and restated offering document dated June 19, 2026 (the "Amended Offering Document") under the listed issuer financing exemption in connection with its previously announced non-brokered private placement offering pursuant to section 5A.2 of National Instrument 45-106 - Prospectus Exemptions ("NI 45-106"), as amended by Coordinated Blanket Order 45-935 - Exemptions from Certain Conditions of the Listed Issuer Financing Exemption (the "LIFE Offering"), originally announced on May 12, 2026. The Amended Offering Document amends and restates the offering document dated May 14, 2026, as amended and restated on June 4, 2026, to update the total number of flow-through units and non-flow-through units being issued in connection with the LIFE Offering.

All terms of the NFT Units, FT Units and Warrants remain unchanged from the terms set out in the Amended Offering Document dated May 14, 2026. The LIFE Offering may close in one or more closings, with closing being anticipated on or around June 26, 2026. The Amended Offering Document has been filed under the Company's profile on SEDAR+ at www.sedarplus.ca and is available on the Company's website. For full details regarding the terms of the LIFE Offering, including the composition of the NFT Units and FT Units, use of proceeds, offering jurisdictions, hold periods, and finders' fees, prospective investors should refer to the Amended Offering Document and the Company's news releases dated May 12, 2026 and May 14, 2026. Prospective investors should read the Amended Offering Document before making an investment decision.

The securities issuable pursuant to the LIFE Offering have not, nor will they be, registered under the United States Securities Act of 1933, as amended (the "U.S. Securities Act"), and may not be offered or sold within the United States or to, or for the account or benefit of, U.S. persons in the absence of U.S. registration or an applicable exemption from the U.S. registration requirements. This news release shall not constitute an offer to sell or the solicitation of an offer to buy nor shall there be any sale of the securities in the United States or in any other jurisdiction in which such offer, solicitation or sale would be unlawful.

About Copper One Resources Corp.

Copper One Resources Corp. 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% interest in the Redhill Property, a copper-focused exploration opportunity located south of Ashcroft, British Columbia, within the Kamloops Mining District. The project covers approximately 4,736.38 hectares across 18 mineral claims and is prospective for volcanogenic massive sulphides mineralization, a deposit style commonly associated with copper, zinc, silver, and gold. In addition, the Company owns the 100%-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.

All stakeholders are encouraged to follow the Company on its social media profiles on LinkedIn and X.com, and to subscribe for updates at https://copperone.com/.

Neither the Canadian Securities Exchange nor its Market Regulator (as that term is defined in the policies of the Canadian Securities Exchange) accepts responsibility for the adequacy or accuracy of this release.

On Behalf of Copper One Resources Corp.

"David Greenway"

David C. Greenway

President & CEO

For further information, please contact:

Brent Rusin

Corporate Communications

E: info@copperone.com

P: 1 (236) 788-0643

VISIT OUR WEBSITE FOR MORE DETAILS

www.copperone.com

LIKE AND FOLLOW

Twitter, LinkedIn

Forward-Looking Information

This news release contains certain forward-looking statements and forward-looking information (collectively, "Forward-Looking Statements") within the meaning of applicable Canadian securities laws. Forward-Looking Statements are frequently identified by such words as "anticipates," "believes," "expects," "intends," "plans," "projects," "targets," "may," "will," or similar expressions.

Forward-Looking Statements in this news release include, but are not limited to, statements regarding the Company's plans and objectives, including its strategy to enhance market awareness, expand its shareholder base, and advance its mineral projects.

These Forward-Looking Statements are based on reasonable assumptions and estimates of management at the date of this news release, including, without limitation, that the Company will be able to execute its business plans as currently contemplated, that general market conditions will remain stable, and that the Company will have access to sufficient capital to support its activities.

Forward-Looking Statements involve known and unknown risks, uncertainties, and other factors which may cause the actual results, performance, or achievements of the Company to differ materially from any future results, performance, or achievements expressed or implied by such Forward-Looking Statements. Such factors include, among others, risks related to general market and economic conditions, fluctuations in commodity prices, including copper, risks inherent in mineral exploration and development, the Company's ability to obtain financing on acceptable terms or at all, and changes in applicable laws and regulations. Additional risk factors are discussed in the Company's continuous disclosure filings available under the Company's profile on SEDAR+ at www.sedarplus.ca.

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 Statements, 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 Statements. The Company undertakes no obligation to update any Forward-Looking Statements except in accordance with applicable securities laws.

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