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GAMA.V ·

Gamma Resources Announces Closing of Amended Payment Terms Negotiation for U.S. Uranium Portfolio Lease Agreement

Corporate Updates

Gamma Resources Announces Closing of

Amended Payment Terms Negotiation for U.S. Uranium Portfolio Lease

Agreement

VANCOUVER, BRITISH COLUMBIA, June 3, 2026 – Gamma Resources Ltd. (TSX-V:

GAMA; OTCQB: GAMXF; FRA: MRD0) (“Gamma” or the “Company”) is pleased to announce

that the TSX Venture Exchange (the “ TSXV”) has accepted an amending agreement dated April

14, 2026 (the “Amending Agreement”), which amends the payment terms under the Company’s

previously announced lease agreement for its U.S. uranium projects as originally disclosed in press

releases dated April 14, 2025 and April 14, 2026. The amended terms provide the Company with

enhanced financial flexibility while maintaining its rights and interests in the underlying assets.

Amended Payment Terms

The amended payment terms and their current status are as follows:

• US$50,000 on the Effective Date (payment complete);

• US$200,000 not later than 120 days after the Effective Date (payment complete);

• US$20,000 on or before April 14, 2026 (payment complete);

• US$50,000 on or before May 14, 2026 (payment complete);

• US$50,000 on or before June 14, 2026 (payment complete);

• US$180,000 on or before July 14, 2026 (payment outstanding);

• 1,000,000 common shares of Gamma to be issued as soon as practicable;

• US$250,000 on the second anniversary of the Effective Date (payment outstanding); and

• US$250,000 on the third anniversary of the Effective Date (payment outstanding).

The TSXV has approved the issuance of 1,000,000 common shares of Gamma, and such shares

will be issued as soon as practicable. The shares will be subject to a statutory hold period of four

months and one day in accordance with applicable securities laws.

The amended payment terms align Gamma’s near -term cash commitments with its broader

capital allocation strategy, allowing the Company to continue advancing its U.S. uranium portfolio

while preserving financial flexibility.

Except as amended by the Amending Agreement, all other terms, conditions and provisions of

the original lease agreement remain in full force and effect as unamended.

Gamma is currently advancing exploration activities across its U.S. uranium portfolio, including its

Mesa Arc Project in New Mexico and Green River Project in Utah. Ongoing work is focused on

refining target areas through data compilation and interpretation, permitting, and field- based

programs designed to support drill targeting.

About Gamma Resources Ltd.

Gamma Resources Ltd. is a U.S. -focused uranium exploration and development company

advancing high-quality assets in the Mountain West region. The Company’s portfolio includes the

Green River Project in Utah, comprising 1,100 acres near prominent regional producers, and the

Mesa Arc Project in New Mexico, a strategic land position now totaling 4,520 acres that includes

historic uranium resources in the Chama Basin. Management believes the Company is uniquely

positioned to benefit from the unprecedented policy and market tailwinds reshaping the U.S.

nuclear landscape, and help meet this demand with responsibly sourced, U.S. -based uranium

supply.

For Further Information

Mr. C. Connor Messler, President

Email: [email protected]

Tel: (833) 854-6826

www.gammaresourcesltd.com

Forward-Looking Statements

Neither the TSXV nor its regulation services provider (as that term is defined in the policies of the

TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

Statements made in this news release, other than purely historical information, including

statements relating to the Company’s future plans and objectives or expected results, may

include forward- looking statements. forward- looking statements are based on numerous

assumptions and are subject to all of the risks and uncertainties inherent in resource exploration

and development. As a result, actual results may vary materially from those described in the

forward-looking statements.