Cameco Provides Updated Times for Q2 Results and Conference Call

TSX: CCO website: cameco.com

NYSE: CCJ currency: Cdn (unless noted)

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

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

Cameco Provides Updated Times for Q2 Results and Conference Call

Saskatoon, Saskatchewan, Canada, July 20, 2018 . . . . . . . . . . . . . .

Cameco (TSX: CCO; NYSE: CCJ) will issue its second quarter results after markets close on

Wednesday, July 25, 2018.

Cameco invites investors and the media to join its second quarter conference call with the

company's senior executives on Thursday, July 26, 2018 at 8:00 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 800-319-4610 (Canada and US toll-free) or 604-638-5340. An

operator will put your call through. The slides and a live webcast of the conference call will be

available from a link at 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, August 26, 2018, by calling 800-319-6413 (Canada and US

toll-free) or 604-638-9010 (Passcode 2376).

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. 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: Jeff Hryhoriw 306-385-5221