Mr. Cory Kos reports

CAMECO REPORTS DOCUMENT FILINGS

Cameco Corp. has filed its annual report on Form 40-F with the U.S. Securities and Exchange Commission. The document includes Cameco's audited annual financial statements for the year ended Dec. 31, 2023, its management's discussion and analysis, and its Canadian annual information form.

In addition, Cameco filed with Canadian securities regulatory authorities its AIF. Its audited annual financial statements for the year ended Dec. 31, 2023, and its MD&A were filed with Canadian securities regulatory authorities in February, 2024.

Cameco also filed a technical report for the Cigar Lake operation under Canadian Securities Administrators' National Instrument 43-101.

All of these documents are posted on its website. Shareholders may obtain hard copies of these documents, including the financial statements, free of charge by contacting: Cameco investor relations, 2121 11th St. West, Saskatoon, Sask., S7M 1J3, or by phone: 306-956-6294.

On April 5, 2024, Cameco plans to post on its website the management proxy circular that is being distributed to shareholders of record as of March 11, 2024, for its annual meeting of shareholders on May 9, 2024. Cameco, on behalf of itself and certain subsidiaries, will also post its modern slavery report in accordance with the Fighting Against Forced Labour and Child Labour in Supply Chains Act (Canada). This is Cameco's first modern slavery report pursuant to the act.

About Cameco Corp.

Cameco is one of the largest global providers of the uranium fuel needed to energize a clean-air world. Its competitive position is based on its 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. Its shares trade on the Toronto and New York stock exchanges. Its head office is in Saskatoon, Sask., Canada.