Gunnison Copper Corp. (TSX: GCU) (OTCQB: GCUMF) (FSE: 3XS0) is pleased to announce that it has closed its previously announced bought deal public offering, pursuant to which the Company sold 82,144,500 common shares, including the full exercise of the over-allotment option granted by the Company of 10,714,500 Common Shares, at a price of C$0.42 per Common Share for gross proceeds of approximately C$34.5 million.

The Offering was conducted by a syndicate of underwriters led by Canaccord Genuity Corp., as sole bookrunner, on behalf of a syndicate of underwriters that included Paradigm Capital Inc., as co-lead underwriter with Canaccord Genuity, and Ventum Financial Corp. and CIBC Capital Markets.

The net proceeds of the Offering will be used to advance the Company’s Gunnison Copper Project in Arizona, as well as for working capital and general corporate purposes.

The Offering was offered in (i) each of the provinces of Canada, except Quebec, pursuant to a prospectus supplement dated May 29, 2026 to the Company’s short form base shelf prospectus dated May 19, 2026, (ii) the United States on a private placement basis to Qualified Institutional Buyers pursuant to applicable exemptions from the registration requirements of the United States Securities Act of 1933, and (iii) such other jurisdictions outside of Canada and the United States on a private placement basis in accordance with applicable laws. The Offering remains subject to the final approval of the Toronto Stock Exchange.

A copy of the Prospectus is available on the Company’s profile on SEDAR+ at www.sedarplus.ca.

The Common Shares have not been and will not be registered under the U.S. Securities Act of 1933 and may not be offered or sold in the United States absent registration or an applicable exemption from the registration requirements under the U.S. Securities Act of 1933 and applicable state securities laws. 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 any securities in any jurisdiction in which such offer, solicitation or sale would be unlawful.

ABOUT GUNNISON COPPER CORP.

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.

For more information on the Company, 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