Saskatoon, Saskatchewan, Canada, October 1, 2015

ALL AMOUNTS ARE STATED IN CDN $ (UNLESS NOTED)

Cameco (TSX: CCO; NYSE: CCJ) will issue its third quarter results after markets close on Friday, October 30, 2015.

Cameco invites investors and the media to join its third quarter conference call with the company's senior executives on Monday, November 2, 2015 at 11:00 a.m. Eastern.

Cameco will discuss the financial results and company developments before opening the call to questions from investors and the media.

To join the call, please dial (800) 769-8320 (Canada and US) or (416) 340-8530. An operator will put your call through. A live audio feed of the conference call will be available from a link on cameco.com.

A recorded version of the proceedings will be available on our website shortly after the call, and on post view until midnight, Eastern, December 6, 2015, by calling (800) 408-3053 (Canada and US) or (905) 694-9451 (Passcode 5846753#).

Profile

Cameco is one of the world’s largest uranium producers, a significant supplier of conversion services and one of two Candu fuel manufacturers in Canada. Our competitive position is based on our controlling ownership of the world’s largest high-grade reserves and low-cost operations. Our uranium products are used to generate clean electricity in nuclear power plants around the world. We also explore for uranium in the Americas, Australia and Asia. Our shares trade on the Toronto and New York stock exchanges. Our head office is in Saskatoon, Saskatchewan.

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Investor inquiries: Rachelle Girard (306) 956-6403

Media inquiries: Rob Gereghty (306) 956-6190