2026 Annual Meeting of Shareholders

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Cameco’s 2026 Annual Meeting of Shareholders will be held virtually on Thursday, May 7, 2026 at 10:00 a.m. CST (12:00 p.m. Eastern).

You can attend the meeting by accessing the “Join Webcast” link available on the day of the meeting. To attend and vote your shares online during the meeting, you will be required to enter your control number and a password.

If you are unable to attend and participate in the live webcast, you can listen to the webcast following the meeting.

Join Webcast
The password is cameco2026 (case sensitive)

See the guide below for information on participating in the meeting.

If you are a registered shareholder who wishes to attend and vote your shares online at the meeting, your control number is provided on your proxy form (refer to meeting materials delivered to you by mail or email). Beneficial shareholders who wish to attend and vote their shares online at the meeting must first appoint themselves as proxyholder prior to 10:00 a.m. CST on Tuesday, May 5, 2026, and register in advance with our transfer agent, Computershare Trust Company of Canada (Computershare), to obtain an ‘Invite Code' for participating online via webcast. Instructions for appointing yourself as proxyholder, registering in advance with Computershare, and obtaining a control number are provided on pages 11 and 12 of the circular.

Shareholders can vote by proxy in advance of the meeting (refer to meeting materials delivered to you by mail or email). The vast majority of our shareholders vote by proxy in advance of the meeting, and we encourage shareholders to continue to vote in this manner using one of the methods described in the circular. Instructions on voting by proxy can be found on pages 10 and 11 of the circular.

If you have questions about voting, completing the proxy form, the voting instruction form, or residency declaration, or about the meeting in general, please contact Kingsdale Advisors, our strategic shareholder services advisor and proxy solicitation agent:

• Phone: 1-888-518-1588 (toll free within North America) or 1-437-561-4997 (text and call enabled outside North America)
• Email: contactus@kingsdaleadvisors.com

Notice and access

Cameco has adopted the notice-and-access method for delivery of its meeting materials to its shareholders. Registered and non-registered shareholders have received notification that the meeting materials in connection with the 2026 annual meeting of shareholders are available online. The use of this alternate means of delivery is permitted by Canadian securities regulators and is an efficient, environmentally friendly, and cost-effective way to distribute our meeting materials because it reduces printing, paper, and postage costs.

You can access the meeting materials below. Shareholders who would like a paper copy of the 2026 Management Proxy Circular and/or the 2025 Annual Report can request a copy. 

Registered shareholders - For more information regarding notice-and-access, you may contact our transfer agent Computershare, by phone at 1-866-964-0492 (toll-free) or by visiting www.computershare.com/noticeandaccess. To obtain a paper copy of the meeting materials, you may contact Computershare, by phone at 1-866-962-0498 (toll-free within Canada and the US) or 514-982-8716 (outside Canada and the US) and enter your 15-digit control number as indicated on your form of proxy.

Non-registered shareholders - For more information regarding notice-and-access or to obtain a paper copy of the meeting materials, you may contact Broadridge, by going to proxyvote.com or by phone at 1-877-907-7643 (toll-free within Canada and the US) or 303-562-9305 (English) or 303-562-9306 (French) (outside Canada and the US) and enter your 16-digit control number as indicated on your voting instruction form.