Cameco announces that agreements have been signed with the owners of the Cigar Lake project and McClean Lake mill to process all Cigar Lake ore at McClean Lake.

Tim Gitzel is appointed chief executive officer of Cameco.

Cameco has signed two agreements to buy uranium produced at the Sotkamo nickel-zinc mine in eastern Finland owned by the Talvivaara Mining Company Plc. (LSE: TALV).

2010

Cameco signs two key uranium supply agreements with China Guangdong Nuclear Power and China Nuclear Energy Industry Corporation for a total commitment of 52 million pounds of uranium concentrate.

Started the main processing plant at the Inkai minesite in Kazakhstan.

McArthur River mine was awarded the John T. Ryan National Safety Trophy for the best safety performance in the metal mine category in 2009. The Cigar Lake project was also recognized with a Special Award Certificate for outstanding safety performance in 2009.

Cameco has assisted in dismantling thousands of nuclear warheads through the "megatons to megawatts" program.

2009

Cameco announces completion of Centerra common share sale.

Cameco completes its public offering of $500 million principal amount 5.67% Senior Unsecured Debentures, Series D.

Cameco receives gross proceeds of approximately $460 million from bought deal public offering of common shares.

2008

Cameco acquires a 70% interest in the Kintyre uranium exploration project in Western Australia.

Cameco enters the enrichment business through an agreement with GE Hitachi Nuclear Energy to acquire a 24% interest in Global Laser Enrichment.

2007

Cameco forms new strategic alliances with junior uranium companies to maximize opportunities to participate in development of new deposits, including Western Uranium Corporation.

Cameco signs a non-binding memorandum of understanding with Kazatomprom to co-operate on the development of uranium conversion capacity and to pursue additional uranium production.

2006

Cameco acquires a 100% interest in Zircatec Precision Industries, Inc. Zircatec's primary business is manufacturing nuclear fuel bundles and other components for Candu reactors.

Cameco's Crow Butte Resources and Smith Ranch-Highland operations both receive ISO 14001:2004 certification.

Cameco announces a two-for-one share split.

2005

Cameco negotiates a toll-processing agreement with British Nuclear Fuels plc (BNFL) to secure 5 million kgU of additional conversion services from BNFL's Springfields plant in the United Kingdom.

2004

Cameco creates Centerra Gold and consolidates gold assets.

Cameco announces development of uranium mine at Inkai, Kazakhstan.

Cameco decides to proceed with construction of a new mine at Cigar Lake in northern Saskatchewan.

Cameco announces a three-for-one share split and increases its annual cash dividend.

2003

Cameco receives ISO 14001 Certification for McArthur River and Cigar Lake.

Gerald Grandey is appointed chief executive officer of Cameco.

Cameco appoints Victor Zaleschuk as the new board chair.

2002

All of Cameco's common shares are publicly traded after the government of Saskatchewan sells its remaining 10% ownership in February.

Cameco increases its stake in Bruce Power to 31.6%.

2001

Cameco expands its interest in the nuclear industry by acquiring 15% of Bruce Power, the limited partnership formed to lease the Bruce reactors in Ontario.

Cameco announces that reserves at McArthur River increased by more than 50%.

The McArthur River/Key Lake uranium operations achieve full production of 18 million pounds.

2000

The McArthur River mine achieves commercial production in November 2000 and becomes the world's largest high-grade uranium mine.

1999

Cameco signs an agreement for the purchase of natural uranium derived from highly enriched uranium (HEU) contained in dismantled Russian nuclear weapons.

Cameco sells a 14% interest in McArthur River and 17% in Key Lake to Cogema Resources Inc. Cameco begins mining at McArthur River, the world's largest high-grade uranium mine.

1998

Cameco acquires Canadian-based Uranerz Exploration and Mining Limited and Uranerz U.S.A., Inc., increasing its reserves and resources and production levels by about 30%

1997

Kumtor gold operation in Kyrgyzstan, Central Asia, owned one-third by Cameco, achieves commercial production

1996

Cameco shares begin trading on the New York Stock Exchange

Cameco Gold is formed as a subsidiary of Cameco to conduct the company's gold business

Cameco purchases Power Resources, Inc., the largest uranium producer in the United States, increasing its reserves and resources by 10%.

1991

Cameco completes its initial public offering and shares begin trading on the Toronto and Montreal stock exchanges

1990

Cameco sells a one-third interest in the Rabbit Lake operation to Uranerz Exploration and Mining Limited in order to reduce debt.

1988

Cameco is created by the merger of two Crown corporations—Saskatchewan Mining Development Corporation and Eldorado Nuclear Limited.