CCJ Cameco Corporation

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 6-K

Report of Foreign Private Issuer

Pursuant to Rule 13a-16 or 15d-16

Under the Securities Exchange Act of 1934

For the month of October, 2023

Cameco Corporation

(Commission file No. 1-14228)

2121-11th Street West

Saskatoon, Saskatchewan, Canada S7M 1J3

(Address of Principal Executive Offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F ☐   Form 40-F ☒

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes ☐   No ☒

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b):

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Exhibit 99.1

2121 – 11^th Street West, Saskatoon, Saskatchewan, S7M 1J3 Canada

Tel: 306-956-6200 Fax: 306-956-6201

Cameco Marks Uranium Supply Agreement with

China Nuclear International Corporation

Saskatoon, Saskatchewan, Canada, October 29, 2023 . . . . . . . . . . . . . 

Cameco (TSX: CCO; NYSE: CCJ) has signed a uranium supply agreement with China Nuclear International Corporation, a subsidiary of China National Nuclear Corporation (CNNC), one of the country’s largest nuclear power operators.

The contract, finalized earlier this year, was marked as part of the 2023 International Forum on Natural Uranium Industry taking place in Beijing.

“China is counting on nuclear energy to play a major role in its commitment to achieve net-zero emissions, and CNNC is a large and growing part of that effort,” said Cameco president and CEO Tim Gitzel. “Cameco is very pleased to continue increasing our contribution toward the attainment of China’s important climate goals.”

Terms and details of the supply agreement are commercially confidential and will not be disclosed publicly. The contract volumes are reflected in the 215 million pounds of uranium Cameco reported having under long-term contracts as of April 27, 2023, and the reported average annual delivery volumes of 28 million pounds per year from 2023 through 2027 as of June 30, 2023.

Profile

Cameco is one of the largest global providers of the uranium fuel needed to energize a clean-air world. Our competitive position is based on our controlling ownership of the world’s largest high-grade reserves and low-cost operations. Utilities around the world rely on our nuclear fuel products to generate 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.

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Investor inquiries:

Rachelle Girard

306-956-6403

rachelle_girard@cameco.com

Media inquiries:

Veronica Baker

306-385-5541

veronica_baker@cameco.com