Cameco and Brookfield Complete Acquisition of Westinghouse Electric Company

Cameco Marks Uranium Supply Agreement with China Nuclear International Corporation

Cameco to Provide UF6 to Support Bulgaria’s Diversification Efforts

Cameco and Bruce Power Celebrate Extension of Long-Term Arrangements for Nuclear Fuel Through 2040

Cameco to Receive Substantial Refund of $300 Million from Canada Revenue Agency

Cameco and Energoatom Agree on Commercial Terms to Supply Ukraine’s Full Natural UF6 Needs through 2035


Cameco Produces First Packaged Pounds Following McArthur River/Key Lake Restart

Cameco Signs Uranium Supply Agreement with China Nuclear International Corporation

Cameco Announces Closing of US$747.6 Million Bought Deal Offering of Common Shares

Cameco and Brookfield Renewable Form Strategic Partnership to Acquire Westinghouse Electric Company

Cameco Announces US$650 Million Bought Deal Offering of Common Shares

Cameco Increases Ownership Stake in Cigar Lake Mine


Cameco Sells Shares of UEX Corporation

Cameco Pleased as Supreme Court Dismisses CRA Leave to Appeal

Cameco Increases Interest in Global Laser Enrichment

Responding to the COVID-19 Pandemic


Canada Revenue Agency Seeks Leave to Appeal Federal Court of Appeal Decision

Cameco Pleased as Federal Court of Appeal Unanimously Upholds Tax Court Decision

Mining Association of Canada recognizes Cameco with its “Towards Sustainable Mining” award for extraordinary environmental and community engagement achievements

Canadian Institute of Mining recognizes Cameco’s Cigar Lake Mine with it’s third consecutive John T. Ryan Regional Safety Award

Responding to the COVID-19 Pandemic


Arbitration Tribunal Rules in Favour of Cameco Inc. in TEPCO Contract Dispute

Cameco Pleased with Section 232 Decision on U.S. Uranium Imports

Cameco Step Up for Mental Health raises $400,000 for 21 mental health projects in Saskatchewan

Canadian Institute of Mining recognizes Cameco’s Cigar Lake Mine with John T. Ryan Regional Safety Award

Tax Court of Canada Releases Decision on Cameco Cost Application


Canada Revenue Agency appeals Tax Court of Canada decision

Tax Court of Canada rules in favour of Cameco

Cameco suspends production at McArthur River/Key Lake indefinitely

Cameco awarded contract for Bruce Power major component project

Cameco's Board appoints new Chair

JV Inkai Restructuring Takes Effect January 1, 2018


Cameco to suspend production from McArthur River and Key Lake Operations and reduce its dividend

Lac La Ronge Indian Band and Cameco Sign Collaboration Agreement

Cameco to Play Key Role in Bruce Power Life Extension Program

Cameco Announces Senior Management Changes and Election of Directors

Cameco Receives 10-year Operating License for Port Hope Conversion Facility from CNSC

Cameco Rejects TEPCO's Uranium Contract Termination Notice


Athabasca Basin Communities Renew Partnership with the Uranium Mining Industry

Cameco and Kazatomprom Sign Agreement to Restructure JV Inkai

Cameco Wins Third Consecutive National Mining Safety Award

Cameco Announces Operational Changes in Saskatchewan and the United States

New Legacy Fund Shares Benefits from Uranium Mining with Northern Communities

Cameco Named on Top 100 List for most Sustainable Corporations in the World


Cigar Lake Achieves Production Milestone

Cameco and Areva officially mark the grand opening of Cigar Lake on September 23rd

Cameco achieves commercial production at Cigar Lake

McArthur River recognized for exceptional safety performance

Cameco announces contract with India


Cameco recognized for outstanding safety performance.

Cameco ends toll-conversion agreement with Springfields Fuels Ltd.

Cameco announces start of ore production at Cigar Lake mine.

Cameco announces agreement to sell its interest in Bruce Power.


Neil McMillan named to succeed Victor J. Zaleschuk as chair of Cameco's board of directors.

For the fourth consecutive year, Cameco is recognized as a top Canadian employer with multiple awards.

Cigar Lake receives operating licence.

Cameco starts production from North Butte uranium mine.


Cameco announces the completion of the acquisition of the Yeelirrie uranium project in Western Australia.

Cameco completes the agreement with AREVA Resources Canada Inc. (AREVA) to purchase AREVA's 27.94% interest in the Millennium project.

Cameco announces it has signed an agreement with Advent International to purchase NUKEM Energy GmbH (NUKEM).

Cameco announces breakthrough of second shaft at Cigar Lake


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).


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.


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.


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.


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.


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.


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.


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.


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.


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%.


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.


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


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.


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%


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


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%.


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


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


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