卡梅科 CCJ

Grant Isaac was appointed executive vice-president and chief financial officer on February 1, 2023. Prior to this promotion, he served as senior vice-president and chief financial officer since July 1, 2011. He has executive oversight responsibilities for finance, tax, treasury, investor relations, strategy and risk, and marketing. Grant was previously senior vice-president, corporate services from 2009 to 2011. Grant is a member of the Westinghouse board and serves as the chair of its audit committee. Prior to joining Cameco, Grant was a professor at the Edwards School of Business, University of Saskatchewan beginning in 2000 and was appointed as the Dean of the Edwards School of Business in 2006. Grant earned a BA (economics) and an MA (economics) from the University of Saskatchewan and a PhD from the London School of Economics.

Ms. Heidi Shockey, Senior Vice President and Deputy Chief Financial Officer. Principal occupation or employment for past five years: Assumed current position September 1, 2025; February 1, 2023, to August 31, 2025 - Senior Vice-President and Deputy Chief Financial Officer; April 2020 to January 31, 2023 - Vice-President, Controller.

Catherine Gignac is a corporate director. She has more than 30 years of experience in capital markets and the mining industry and has held senior positions as a mining equity research analyst with leading global brokerage firms and independent boutiques. She has extensive experience in project value and investment analysis and spent her early working years as a geologist. Catherine received a bachelor of science degree in geology (honours) from McMaster University. She is a member of the Institute of Corporate Directors, the Canadian Institute of Mining, Metallurgy and Petroleum (CIM), and the Prospectors and Developers Association of Canada (PDAC). She is a past chair of the board of Women in Mining Canada where she served from 2018 to 2022 and served as a member of the Canadian Securities Administrators' mining technical advisory and monitoring committee (CSA MTAMC) until October 2020. She holds the ICD.D designation from the Institute of Corporate Directors. Catherine has served on the Audit and Finance Committee and the Technical Committee (formerly Reserves Oversight) for her entire tenure. She has served as a member of the Nominating, Corporate Governance and Risk Committee since 2019 and as chair from 2021 to 2024, and as chair of the Technical Committee from 2015 to 2022. She has served on the audit, compensation, nominating and sustainability committees of other public company boards, and served as chair of the board of Corvus Gold Inc. for five years. Other public company boards in past five years- OceanaGold Corporation (TSX) (2019 to June 2024).

Kate Jackson is a corporate director. She is the former senior vice-president and chief technology officer of RTI International Metals Inc. and previously served as senior vice-president and chief technology officer for Westinghouse Electric Company, which included responsibility for sustainability and environment, health and safety. She has held various senior positions at the Tennessee Valley Authority and Alcoa Corporation. Kate received a doctorate and a master's degree in engineering and public policy from Carnegie Mellon University. She also holds a master's degree in industrial engineering management from the University of Pittsburgh and a bachelor's degree in physics from Grove City College. She is an elected member of the National Academy of Engineering recognizing her contributions to management of large-scale power system technology, and harmonization of engineering solutions with public policy. Kate is a member of the Carnegie Mellon University School of Engineering Dean's Advisory Council, the advisory board of the Carnegie Mellon Electricity Industry Center. From 2008 to 2014, she was the board chair of ISO New England Inc. - an independent, non-profit regional transmission organization serving several eastern US states. She serves on or has served on the audit, compensation, finance, nominating, technical and sustainability committees and has filled committee chair roles of other public company boards. Other public company boards in past five years- Rice Acquisition Corporation 3 (NYSE); EQT Corporation (NYSE); Portland General Electric Company (NYSE); Archaea Energy Inc. and Rice Acquisition Corporation (NYSE).

Don Kayne is a corporate director. He was special advisor to the CEO of Canfor Corporation, an integrated forest products company, throughout 2025. He served as president and CEO of Canfor Corporation from 2011 to 2024 and is the former CEO of Canfor Pulp Products Incorporated (2012 to 2022). Don has extensive experience in international marketing. He spent his entire career at Canfor, starting out as a regional sales representative in 1979. Prior to his appointment as CEO, Don spent 10 years as Canfor's vice-president of sales and marketing and is one of the lead architects of the market for British Columbia lumber in China. Don's work in growing markets for Canfor products around the world has provided him with deep connections to markets and customers in every region Canfor serves. Don serves on the boards of private companies BC Hydro, a Canadian electric utility operating in British Columbia, Powerex Corp., an electricity marketing company, and as executive chair at Vitalus Nutrition Inc., and is a former director of VIDA Corporation, a Swedish wood products company which is owned 77% by Canfor. He has served the forestry industry in many capacities, including current and past leadership positions with provincial, national and international forestry-related associations and organizations. He is an International Fellow of the Royal Swedish Academy of Engineering Sciences. He serves as co-chair and director of the charitable organization Ching Tien Foundation for Women, which works to empower young women from Asia to become changemakers building on the work of its legacy organization, Educating Girls of Rural China Foundation. Don brings experience in human resources and executive compensation through his executive roles at Canfor. Other public company boards in past five years- Canfor Corporation (TSX) and Canfor Pulp Products Incorporated (TSX)

Leontine van Leeuwen-Atkins is a corporate director. She has over 30 years of experience in the global mining, power, utility and oil and gas industries, with a focus on corporate strategy. Leontine was a board member of KPMG Canada's national board until early 2019, serving on the National Acquisitions and Admissions and Succession committees. She was previously a partner with KPMG Canada and prior to that she was a partner at KPMG Netherlands. Leontine is a fellow of the Chartered Professional Accountants of Alberta and holds the ICD.D designation from the Institute of Corporate Directors. She received a bachelor of business administration degree in finance from Acadia University and a master of business administration degree from Dalhousie University. In 2024, she achieved a certificate in cybersecurity oversight from Carnegie Mellon University. Leontine serves as a director and audit committee chair of ARC Resources Ltd. and EPCOR Utilities Inc., a municipal utility. She was formerly audit committee chair at Points International Ltd. and Seven Generations Energy Ltd. She previously served on the Calgary executive advisory council of the Institute of Corporate Directors and from 2014 to 2020 served on the board and as audit committee chair of Calgary Economic Development. Other public company boards in past five years- ARC Resources Ltd. (TSX) and Points International Ltd. (TSX and NASDAQ)

Dominique Miniere is a corporate director. He has more than 40 years of technical and senior management experience in the nuclear industry. Dominique served as the executive vice president of Ontario Power Generation (OPG), an electricity generator, in charge of new nuclear and international development from 2021 to 2022. Prior to that role, he served as OPG's executive vice president and chief strategy officer from 2020 to 2021 and as OPG's nuclear president from 2019 to 2020. He served as chief operating officer of Electricite de France, an electric utility company in charge of the nuclear and thermal fleet prior to his time at OPG. Dominique received a civil engineering degree from the Ecole des Mines de Paris. He has extensive nuclear energy experience in France, Europe and Canada, including new nuclear, fuel conversion and enrichment. His industry leadership roles include having served as chair of GIFEN, the nuclear industry association in France, as president of the French Nuclear Society and as a board member of the World Association of Nuclear Operators. He has been awarded the Chevelier de la Legion d'Honneur (Knight of the French Legion of Honour). Dominique serves on the boards of private companies ORTEC Group, a French services company involved in services and engineering, and Engineering Planning and Management, Inc. (EPM), a US engineering company. He serves as a member of the Boralex Inc. board and on its human resources and investment and risk committees. Dominique is a member of Holtec International Inc.'s advisory board, a position he will leave in May 2026. Other public company boards in past five years- Boralex Inc. (TSX)

Tammy Cook-Searson is Chief of the Lac La Ronge Indian Band and the president of Kitsaki Management Limited Partnership, the entity that manages the band's economic development activities. Tammy was the band's first woman chief when she was elected in 2005 and, prior to being elected chief, she served on the band's council. She has more than 25 years of leadership, business development and management experience in northern Saskatchewan where some of Cameco's key assets are located. Tammy holds a master of business administration degree and a graduate diploma in management from Athabasca University. She also holds honorary degrees from the University of Regina, the Saskatchewan Indian Institute of Technologies and Saskatchewan Polytechnic. Tammy brings extensive leadership, community relations and development experience to the board, which includes finding solutions for social challenges and advocating for Indigenous issues. Her efforts have been recognized with many awards and medals, including the Indigenous Women in Leadership Award from Canadian Council of Aboriginal Business in 2021, the Canadian Armed Forces Special Services Medal in 2020 and the Queen Elizabeth II Diamond Jubilee Medal in 2012. Tammy is board chair of Saskatchewan Indian Gaming Authority (SIGA) since 2025 and serves the Saskatchewan Indigenous community in many capacities. She is a member of the boards and commissions of Prince Albert Grand Council, Federation of Sovereign Indigenous Nations, Assembly of First Nations and the Virtual Health Hub of Saskatchewan. She serves on the board of the Saskatoon Airport Authority.

Marie Inkster is a corporate director. From 2018 to 2021, she served as the president and CEO and a director of Lundin Mining Corporation, a diversified Canadian base metals mining company, and prior to that she served as senior vice president and chief financial officer from 2009 to 2018. She has more than 20 years of experience in public company management, corporate transactions, public and private debt and equity fundraising, and reporting and disclosure in the Canadian and international mining industry. Marie is a member of the Chartered Professional Accountants of Ontario. She received a bachelor of business administration degree from St. Francis Xavier University. She has held senior leadership and senior finance roles with mining companies with base metals mining operations in countries such as Australia, Botswana, Canada, the US, Portugal, Sweden, South Africa and countries across South America. Marie has served as a director and board chair of AbraSilver Resource Corp. since September 2025. She is the special committee chair for Foran Mining Corporation's independent directors, overseeing the company's potential sale. She also serves on the audit and risk, nominating, governance, and compensation committees, and brings expertise in finance, accounting, audit, human resources, and executive compensation from her senior roles in the mining industry. She has served on the audit and risk, governance, capital allocation and projects, and compensation committees of other public company boards and she was the audit committee chair at Lucara Diamond Corp. for her entire tenure on its board. She served on the board of the International Zinc Association for four years, including as board chair from November 2020 to January 2022. Other public company boards in past five years- AbraSilver Resource Corp. (chair) (TSX and OTCMKTS); Foran Mining Corporation (TSX); Vale S.A. (NYSE, B3 and Euronext); Lucara Diamond Corp (TSX) and Lundin Mining Corporation (TSX).

Peter Kukielski is the president and CEO of Hudbay Minerals Inc., a diversified Canadian mining company, and has served in that position since 2020, after having served as interim CEO since 2019. He has over 30 years of senior management experience in international mining activities. Peter has held president and CEO roles at Canadian and UK mining companies over the past 15 years and prior to that he served in other senior executive roles in the mining and metals sector. Peter received a bachelor of civil engineering degree from the University of Rhode Island and a master of civil engineering degree from Stanford University. His mining industry experience includes development of major projects, supported by large workforces, in the mining and metals sector across North America, South America, the UK and parts of Asia. Peter served on the board of Norsk Hydro from 2019 to 2025 and has served on the compensation, sustainability and nominations and governance committees of another public company board. He brings experience in risk management, mergers and acquisitions, strategy, climate change and workers' and human rights. Other public company boards in past five years- Hudbay Minerals Inc. (TSX and NYSE) and Norsk Hydro ASA (Oslo Stock Exchange)

Mr. R. Liam Mooney, Senior Vice-President and Chief Legal Officer. Principal occupation or employment for past five years: Assumed current position September 1, 2025 September 14, 2011, to August 31, 2025 - Vice-President, SHEQ & Regulatory Relations