Mr. Keith Bodnarchuk reports

COSA RESOURCES ANNOUNCES VOTING RESULTS FROM ITS ANNUAL GENERAL MEETING

Cosa Resources Corp. has released the voting results from its annual general and special meeting of shareholders, held on June 18, 2025.

Shareholders voted in favour of all matters of business before the meeting. Each of those matters is set out in detail in the management information circular, published in connection with the meeting, which is available on the company's website.

A total of 27,589,121 common shares, representing approximately 31.04 per cent of the company's outstanding common shares, were voted in person and by proxy at the meeting. Shareholders voted in favour of: (a) reappointing D&H Group LLP as the auditor of the company (98.82 per cent in favour); (b) setting the number of directors at seven (99.72 per cent in favour); and (c) ratifying and approving the company's stock option plan (99.44 per cent in favour).

Election of directors

The nominees listed in the management information circular were elected as directors of the company until the next annual meeting of shareholders or until the successors are elected or appointed, with the voting results detailed in the attached table.

Stock option grant

The company has granted 1,735,000 incentive stock options to directors, officers, employees and advisers of the company. The incentive stock options will vest over a period of two years, have an exercise price of 22.5 cents per share and are valid for a five-year period from the date of grant. The options were granted pursuant to the company's incentive stock option plan.

About Cosa Resources Corp.

Cosa Resources is a Canadian uranium exploration company operating in Northern Saskatchewan. The portfolio comprises roughly 237,000 hectares across multiple underexplored 100-per-cent-owned-and-Cosa-operated joint venture projects in the Athabasca basin region, the majority of which reside within or adjacent to established uranium corridors.

In January of 2025, the company entered a transformative strategic collaboration with Denison Mines that has secured Cosa access into several additional highly prospective eastern Athabasca uranium exploration projects. As Cosa's largest shareholder, Denison gains exposure to Cosa's potential for exploration success and its pipeline of uranium projects.

Cosa's award-winning management team has a long record of success in Saskatchewan. In 2022, members of the Cosa team were awarded the AME Colin Spence Award for their previous involvement in discovering IsoEnergy's Hurricane deposit. Prior to Hurricane, Cosa personnel led teams or had integral roles in the discovery of Denison's Gryphon deposit and 92 Energy's GMZ zone, and held key roles in the founding of both NexGen and IsoEnergy.

The company's core focus throughout 2025 is drilling at the Murphy Lake North joint venture. Murphy Lake North is a 70/30 joint venture between Cosa and Denison, respectively, and is located at the northern end of the Larocque Lake trend. The project is within three kilometres of and on trend with the Hurricane deposit. Initial drilling completed by Cosa during winter, 2025, intersected broad zones of hydrothermal alteration of the sandstone, associated with prospective basement structures interpreted as the strike extension of those controlling the Hurricane deposit. An expanded follow-up campaign is set to commence in July.

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