Victor J. Zaleschuk 2, 3, 4 Calgary, Alberta Chair President and CEO of Nexen, a large Calgary-based oil and gas company, from 1997 to 2001.

John S. Auston 2, 3 West Vancouver, British Columbia President and CEO of Ashton Mining of Canada from 1996 to 2000 and President and CEO of Granges, another mining firm, from 1993 to 1995.

James R. Curtiss4, 5 Brookeville, Maryland, USA Partner in the Washington, D.C. law firm of Winston & Strawn and a Commissioner on the U.S. Nuclear Regulatory Commission from 1988 to 1993.

George S. Dembroski 3, 4 Toronto, Ontario Vice-Chairman and a Director of RBC Dominion Securities, an investment dealer, from 1981 to 1998.

Oyvind Hushovd 1, 2, 4 Kristiansand S., Norway Chair of Gabriel Resources from 2003 to 2006 (Chair and CEO from 2003 to 2005), President and CEO of Falconbridge Limited from 1996 to 2002.

Dr. J.W. George Ivany 1, 3, 4 Kelowna, British Columbia President and Vice-Chancellor of the University of Saskatchewan from 1989 to 1999.

A. Neil McMillan 1, 2, 5 Saskatoon, Saskatchewan CEO of Claude Resources, a mining firm based in Saskatchewan, since 2004, President since 1995.

Robert W. Peterson 1, 4, 5 Regina, Saskatchewan Senator, appointed to Senate of Canada in 2005. President and COO of Denro Holdings, a Saskatchewan-based property development and financial management company, since 1994.

Joe F. Colvin 3, 5 Kiawah Island, South Carolina, USA President Emeritus (President and CEO from 1996 to 2005) of the Nuclear Energy Institute in Washington, D.C.

Harry D. Cook 2, 3, 5 La Ronge, Saskatchewan Chief of the Lac La Ronge Indian Band in Saskatchewan and President of the Kitsaki Management Limited Partnership from 1987 to 2005.

Gerald W. Grandey Saskatoon, Saskatchewan President and Chief Executive Officer of Cameco.

Nancy E. Hopkins 1, 3 Saskatoon, Saskatchewan Partner in the Saskatchewan law firm of McDougall Gauley LLP since 1984.

John H. Clappison 1, 2, 5 Toronto, Ontario Managing Partner of the Toronto, Ontario office of PricewaterhouseCoopers from 1990 to 2005.

Cameco welcomes a new director Mr. Clappison brings a wealth of experience that includes involvement in many facets of business for both private and public sector companies in Canada and internationally. His involvement in the strategy, growth and financial oversight of Cameco will be much appreciated by shareholders and management.

Learn more about Cameco's governance

See our management proxy circular for more information on Cameco's governance practices. Cameco is in compliance with the corporate governance standards applicable to Canadian TSX listed corporations, the US Sarbanes-Oxley Act, and the NYSE corporate governance standards applicable to it as a foreign private issuer with the SEC. Any significant differences between Cameco's corporate disclosure practices and those applicable to US issuers listed on the NYSE are discussed in this disclosure. The circular is available in hard copy or electronically from the governance section of our website at cameco.com.

What is sustainable development and why is it important to Cameco?

Find these answers in Cameco's first annual sustainable development report. The report outlines what is important to us, what we are prepared to be judged on, our performance against the commitments made and suggestions for improvement. The report presents a picture of our people bound by a vision to accomplish great things, a common set of values to guide decision-making and a mission to measure our success. View the full report at cameco.com.