MYRIAD URANIUM CORP.

NOTICE OF ANNUAL GENERAL AND SPECIAL MEETING

NOTICE IS HEREBY GIVEN that the Annual General and Special Meeting of Shareholders (the “ Meeting ”) of Myriad Uranium Corp. (“ Myriad ”) will be held at Suite 600 - 1090 West Georgia Street, Vancouver, British Columbia at 11:00 a.m., on Thursday, March 12, 2026, for the following purposes:

• 1) To receive and consider the audited financial statements of Myriad for the fiscal year ended April 30, 2025, together with the auditor’s report thereon.

• 2) To fix the number of directors of Myriad at five.

• 3) To elect the directors for the ensuing year.

• 4) To re-appoint the auditor for the ensuing year and to authorize the directors to fix the remuneration to be paid to the auditor.

• 5) To consider and, if appropriate, to pass, with or without variation, an ordinary resolution approving the Company’s Omnibus Long-Term Incentive Plan.

• 6) To transact such other business as may properly come before the Meeting.

The accompanying Information Circular provides additional information relating to the matters to be dealt with at the Meeting and is supplemental to and expressly made a part of this Notice.

The Company’s board of directors (the “ Board ”) has fixed January 21, 2026 as the record date for the determination of shareholders entitled to receive notice of and to vote at the Meeting and at any adjournment or postponement thereof. Each registered shareholder at the close of business on that date is entitled to receive such notice and to vote at the Meeting in the circumstances set out in the accompanying Information Circular.

The Company has elected to use the notice-and-access provisions under National Instrument 54-101 and National Instrument 51-102 (the “ Notice-and-Access Provisions ”) for the Meeting. The Notice-andAccess Provisions are a set of rules developed by the Canadian Securities Administrators that reduce the volume of materials that must be physically mailed to Shareholders by allowing the Company to post the Information Circular and any additional materials (collectively, the “ Meeting Materials ”) online. Shareholders will still receive a Notice-and-Access Notification, with information on how shareholders may access the Meeting Materials via the internet, together with the form of proxy or VIF and a financial statement request card, and may choose to receive a paper copy of the Meeting Materials.

The Company will not use the procedure known as ‘stratification’ in relation to the use of Notice-andAccess Provisions. Stratification occurs when a reporting issuer using the Notice-and-Access Provisions provides a paper copy of the Information Circular to some shareholders with this notice package. In relation to the Meeting, all shareholders will receive the required documentation under the Notice-andAccess Provisions, which will not include a paper copy of the Meeting Materials.

PLEASE REVIEW THE INFORMATION CIRCULAR CAREFULLY IN FULL PRIOR TO VOTING IN RELATION TO THE RESOLUTIONS BEING PRESENTED, AS THE INFORMATION CIRCULAR HAS BEEN PREPARED TO HELP YOU MAKE AN INFORMED DECISION ON THE MATTERS TO BE VOTED UPON AT THE MEETING. THE

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INFORMATION CIRCULAR IS AVAILABLE AT WWW.MYRIADURANIUM.COM AND

UNDER THE COMPANY’S PROFILE ON SEDAR+ AT WWW.SEDARPLUS.CA ANY SHAREHOLDER WHO WISHES TO RECEIVE A PAPER COPY OF THE MEETING MATERIALS (INCLUDING THE INFORMATION CIRCULAR) OR HAVE QUESTIONS ABOUT NOTICE-AND-ACCESS SHOULD CONTACT TSX TRUST COMPANY AT BY TELEPHONE AT 1-888-433-6443 OR BY EMAIL AT [email protected].

If you are a registered shareholder of Myriad and are unable to attend the Meeting in person, please complete, date and execute the accompanying form of proxy and deposit it with TSX Trust Company in accordance with the instructions provided in the form of proxy, not less than 48 hours (excluding Saturdays, Sundays and holidays) prior to the Meeting.

If you are a non-registered shareholder of Myriad and received these materials through a broker, a financial institution, a participant, a trustee or administrator of a self-administered retirement savings plan, retirement income fund, education savings plan, or other similar self-administered savings or investment plan registered under the Income Tax Act (Canada), or a nominee of any of the foregoing that holds your security on your behalf (the “ Intermediary ”), please complete and return the materials in accordance with the instructions provided to you by your Intermediary.

The Company encourages shareholders to vote prior to the Meeting.

DATED at Vancouver, British Columbia, as of January 21, 2026.

By Order of the Board of Directors of

MYRIAD URANIUM CORP.

“Thomas Lamb” Thomas Lamb Chief Executive Officer

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