Cameco Investor Webcast Advisory

Cameco (TSX: CCO; NYSE: CCJ) announced today that President and Chief Operating Officer, Grant Isaac will be speaking at the TD Cowen 10th Annual Nuclear Fuel Cycle and Next Generation Nuclear Roundtable.

The virtual fireside chat will occur on Thursday, October 9th, 2025 at 11:45 a.m. Eastern and will be available by webcast on cameco.com. See the link on the home page on the day of the event. A replay of the webcast will be available on our website shortly after the call and will be available for one month.

Profile

Cameco is one of the largest global providers of the uranium fuel needed to power a secure energy future. Our competitive position is based on our controlling ownership of the world's largest high-grade reserves and low-cost operations, as well as significant investments across the nuclear fuel cycle, including ownership interests in Westinghouse Electric Company and Global Laser Enrichment. Utilities around the world rely on Cameco to provide global nuclear fuel solutions for the generation of safe, reliable, carbon-free nuclear power. Our shares trade on the Toronto and New York stock exchanges. Our head office is in Saskatoon, Saskatchewan, Canada.

As used in this news release, the terms we, us, our, the Company and Cameco mean Cameco Corporation and its subsidiaries unless otherwise indicated.

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Investor inquiries

Cory Kos [email protected]

Media inquiries

Veronica [email protected]

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