Cameco Corp.

Conference Call and Webcast at 9:00 a.m. EDT Today- All-cash offer of $3.75 per Hathor share- Premium of 40% over Hathor's closing share price and 33% over Hathor's 20-day volume-weighted average price as at August 25, 2011- Immediate liquidity and elimination of risk for Hathor shareholders

SASKATOON, SASKATCHEWAN -- (Marketwire) -- 09/14/11 -- Cameco (TSX: CCO) (NYSE: CCJ) provided further comment today on the summary results of the Preliminary Economic Assessment (PA) of the Roughrider deposit released Tuesday in a news release issued by Hathor Exploration Ltd. Cameco also addressed the directors' circular filed in response to Cameco's all-cash offer to acquire Hathor.

SASKATOON, SASKATCHEWAN -- (Marketwire) -- 09/13/11 -- ALL AMOUNTS ARE STATED IN CDN $ (UNLESS NOTED) Cameco (TSX: CCO) (NYSE: CCJ) announced today commented on the summary results of the Preliminary Economic Assessment (PA) of the Roughrider deposit released earlier today by Hathor Exploration Ltd.

SASKATOON, SASKATCHEWAN -- (Marketwire) -- 08/31/11 -- ALL AMOUNTS ARE STATED IN CDN $ (UNLESS NOTED) Cameco (TSX: CCO) (NYSE: CCJ) today announced it has signed a memorandum of agreement with its partner, Kazatomprom, to increase annual uranium production at Joint Venture Inkai Limited Liability Partnership (JVI) from 3.9 million pounds to 5.2 million pounds.

SASKATOON, SASKATCHEWAN -- (Marketwire) -- 08/30/11 -- ALL AMOUNTS ARE STATED IN CDN $ (UNLESS NOTED) Cameco (TSX: CCO) (NYSE: CCJ) today announced that it has commenced its offer to acquire all of the outstanding shares of Hathor Exploration Ltd. (TSX: HAT) for cash consideration of $3.75 per share in a transaction which values the fully diluted share capital of Hathor at approximately $520 million(1) (the 'Offer').

SASKATOON, SASKATCHEWAN -- (Marketwire) -- 05/07/10 -- ALL AMOUNTS ARE STATED IN CDN $ (UNLESS NOTED) Cameco Corporation (TSX: CCO) (NYSE: CCJ) announced today that a presentation by president and CEO Jerry Grandey at the Bank of America Merrill Lynch 2010 Global Metals and Mining Conference will be available by webcast. The presentation is scheduled for Tuesday, May 11, 2010 at 2:05 p.m. Eastern.

- second quarter results as expected- sales and revenue guidance for the year reconfirmed - extensive portfolio of long-term sales contracts provide stability in current market - new management team reconfirms corporate growth strategy - at Cigar Lake, resumed sinking of shaft 2 and received regulatory approval of mine plan

SASKATOON, SASKATCHEWAN -- (Marketwire) -- 07/15/11 -- ALL AMOUNTS ARE STATED IN CDN $ (UNLESS NOTED) Cameco (TSX: CCO) (NYSE: CCJ) is pleased to announce the appointment of Grant Isaac as senior vice-president and chief financial officer and Alice Wong as senior vice-president, corporate services, effective July 15, 2011.

SASKATOON, SASKATCHEWAN -- (Marketwire) -- 07/04/11 -- Cameco (TSX: CCO) (NYSE: CCJ) will issue its second quarter results before markets open on Thursday, August 4, 2011. Cameco invites investors and the media to join its second quarter conference call with the company's senior executives on Thursday, August 4, 2011 at 1:00 p.m. Eastern.

SASKATOON, SASKATCHEWAN -- (Marketwire) -- 06/16/11 -- Cameco (TSX: CCO) (NYSE: CCJ) announced today that Tim Gitzel, president, will be speaking at the 2011 RBC Capital Markets' Global Mining and Materials Conference.

The presentation is scheduled for Tuesday, June 21, 2011 at 9:00 a.m. Eastern and will be available by webcast on Cameco's website at cameco.com using Windows Media Player or Flip4Mac software. See the

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