Cameco Corp.

SASKATOON, SASKATCHEWAN -- (Marketwire) -- 01/10/12 -- ALL AMOUNTS ARE STATED IN CDN $ (UNLESS NOTED)

Cameco (TSX: CCO) (NYSE: CCJ) will issue its fourth quarter results in the evening on Thursday, February 9, 2012.

Cameco invites investors and the media to join its fourth quarter conference call with the company's senior executives on Friday

SASKATOON, SASKATCHEWAN -- (Marketwire) -- 11/16/11 -- Cameco (TSX: CCO) (NYSE: CCJ) announced today that Ken Seitz, senior vice-president, marketing and business development, will be speaking at the Dahlman Rose & Co. Global Metals, Mining & Materials Conference.

The presentation is scheduled for Thursday, November 17, 2011 at 1:00 p.m. Eastern

SASKATOON, SASKATCHEWAN -- (Marketwire) -- 11/14/11 --

--  Premium of 8.4% over Rio Tinto's offer for Hathor
--  Offer set to expire at 12:01 a.m. (Vancouver time) on November 29, 2011

Cameco (TSX: CCO) (NYSE: CCJ) announced today that it has increased its all-cash offer to acquire all of the outstanding shares of Hathor Exploration Limited to

SASKATOON, SASKATCHEWAN -- (Marketwire) -- 11/07/11 -- ALL AMOUNTS ARE STATED IN CDN $ (UNLESS NOTED)

--  third quarter results as expected - higher uranium sales and realized
    prices
--  strong fourth quarter expected - over one-third of 2011 uranium
    deliveries
--  sales and revenue guidance for 2011 reconfirmed
--  uranium and fuel

SASKATOON, SASKATCHEWAN -- (Marketwire) -- 10/31/11 -- ALL AMOUNTS ARE STATED IN CDN $ (UNLESS NOTED)

Cameco (TSX: CCO) (NYSE: CCJ) announced today that it has extended its offer to acquire all of the outstanding shares of Hathor Exploration Limited for cash consideration of $3.75 per share to 5:00 p.m. Vancouver time on November 14, 2011, unless