丹尼森矿业 DNN

David Cates was appointed President & CEO of Denison in 2015 and previously served as Vice President Finance, Tax & Chief Financial Officer during his tenure with the Company, which began in 2008. Mr. Cates is a Chartered Professional Accountant (CPA, CA) and holds Master of Accounting (MAcc) and Honours Bachelor of Arts (BA) degrees from the University of Waterloo. Other Public Boards: Foremost Clean Energy Ltd. (TSX-V) and Skyharbour Resources Ltd. (TSX-V)

Ms. Elizabeth Sidle, Vice President Finance and Chief Financial Officer; with Denison in different positions since 2016.

Mr. Geoff Smith, Vice President Corporate Development & Commercial since 2023; prior: President & Chief Operating Officer at Carbon Streaming Corporation and Managing Director in Global Mining & Metals at Scotiabank. Mr. Smith brings to Denison extensive experience in capital markets and the mining and resource sector, having previously served as Managing Director in the Global Mining & Metals group at Scotiabank. Mr. Smith holds an Honours Bachelor of Commerce from Queen's University and is a CFA charter holder. Mr. Smith also serves as a Director of EMX Royalty Corporation (TSX-V: EMX, NYSE American: EMX).

Mr. Sorba is a Professional Geologist (P. Geo) with nearly two decades of experience in Canadian and international uranium exploration, evaluation, and development. Mr. Sorba was appointed Vice President Technical Services & Project Evaluation in 2024, having previous served as the Company's Director Technical Services. During his tenure at Denison, Mr. Sorba has led numerous projects, including Denison's flagship Wheeler River project, from discovery through to various levels of technical assessments, and has evaluated numerous uranium projects for their economic potential, supporting several of Denison's past asset acquisitions. Mr. Sorba is a key technical leader of the Denison team that is pioneering the use of the ISR mining method at certain high-grade uranium deposits in Saskatchewan, including the design and implementation of a first-of-its-kind ISR feasibility field test, which was successfully completed at the Company's Phoenix deposit. Mr. Sorba holds a Bachelor of Science (Hons.) in Geological Sciences from the University of Saskatchewan, Canada, is registered with APEGS and CIM, and is a Qualified Person in accordance with the requirements of NI 43-101.

Ms. Amanda Willett, Vice President Legal and Corporate Secretary; with Denison in different positions since 2016.

David Neuburger is a corporate director and consultant, with more than 30 years' experience in mining, in executive leadership, operations management, corporate strategic planning, projects and mine engineering for companies involved in uranium, gold, nickel and copper/zinc mining. From 2013 to 2018, Mr. Neuburger was Vice President, General Manager, Kupol Operations for Kinross Gold Corporation; prior to that, he held the positions of Vice President, International Mining (2010 to 2013) and Vice President, Mining Division (2004 to 2010) for Cameco Corporation. Mr. Neuburger has also volunteered as President and in other executive committee roles with the Saskatchewan Mining Association. Mr. Neuburger is a Professional Engineer registered in Saskatchewan and holds a Master of Business Administration degree from the University of Saskatchewan and a Bachelor of Engineering degree in Mining and a Bachelor of Science degree in Biology from McGill University.

Patricia Volker is a corporate director, whose experience is highlighted by over 17 years of service at the Chartered Professional Accountants of Ontario, the self-regulating body for Ontario's Chartered Professional Accountants, including the roles of Director of Standards Enforcement and Director, Public Accounting and Special Projects. Ms. Volker served in various capacities in the accounting profession during her 30+ year career and brings a wealth of advisory, public accounting, banking and regulatory expertise to the Denison Board. Ms. Volker is also on the board, and serves on committees, for Ornge. Ms. Volker is a CPA, CA and CMA, holds the ICD.D. designation and earned a B.Sc. from the University of Toronto. Other Public Boards: The Empire Life Insurance Company (unlisted reporting issuer) and Labrador Iron Ore Royalty Corporation (TSX)

Laurie Sterritt is CEO and Managing Partner of Pathways Executive Search, an executive search firm in Canada. Previously, Ms. Sterritt served as Managing Director of Leaders International. In 2018, Ms. Sterritt formed a non-profit association to launch the first-of-its-kind Indigenous Women's Leadership Summit (IWLS), with a mandate to inspire and uplift Indigenous women throughout their personal and professional journeys. Prior to that, Ms. Sterritt developed and implemented the Indigenous Employment and Business Development strategy for BC Hydro and led the start-up and growth of the Aboriginal Mentoring and Training Association (AMTA) and its subsidiary social enterprise, First Resources Impact Ventures (FRIV). Ms. Sterritt is a member of the Kispiox Band of the Gitxsan Nation and has been recognized for her commitment to creating respectful and inclusive workplaces. She has held several board positions, including Director for the Canadian Centre for Arts and Technology (CANCAT), Governor and 1st Vice-Chair of the British Columbia Institute for Technology (BCIT); Council Member of the Real Estate Council of BC; and Director of the Industry Training Authority (now Skilled Trades BC). Ms. Sterritt is a Chartered Director (C.Dir) and holds a Bachelor of Commerce from the University of British Columbia and a Certificate in Professional Fund Raising from the University of Indiana.

Mr. Hartwick has over 40 years of experience in a variety of fields such as finance, investment, corporate leadership and governance, risk management, and stakeholder engagement, with 35 years in the finance and energy sectors. In 2024, Mr. Hartwick retired from the position of President and CEO of OPG, one of North America's largest and most diverse electricity generators, which is also recognized as a clean energy technology innovator. Under Mr. Hartwick's tenure at OPG, spanning nearly 9 years, OPG released its first Climate Change Plan, advanced Ontario's electrification efforts through the development of the Ivy charging network and OPG's PowerON fleet electrification subsidiary, launched its first Reconciliation Action Plan, and took a global leadership position in the deployment of Small Modular Reactors (SMRs) with the advancement of plans to deploy four SMRs at OPG's Darlington site. Mr. Hartwick is a Chartered Professional Accountant with an Honours Bachelor of Business Administration degree from Trent University.

Mr. Carson is Vice President, Mining Operations at Wheaton Precious Metals Corp. and has over 25 years of experience in the mining industry holding a variety of leadership roles in operations, project development and engineering. Prior to joining Wheaton Precious Metals Corp. in 2017, he held positions of Vice President, Project Development for Sabina Gold & Silver Corp. (2012 to 2017), Vice President and General Manager, Mt. Milligan Mine for Thompson Creek Metals Company Inc. (2010 to 2012), and Director, Mining for Terrane Metals Corp. (2007 to 2010). Mr. Carson has also worked for Cominco Ltd., Teck Corporation, Placer Dome Inc. and Barrick Gold Corporation in a variety of operating roles in both North America and Africa. Mr. Carson received his Bachelor of Applied Science, Mining and Mineral Process Engineering at the University of British Columbia and is a registered Professional Engineer in the Province of British Columbia.

Ms. Switzer joined Denison in 2020 and was appointed to Vice President of Environment, Sustainability, Regulatory in 2024. Ms. Switzer has over two decades of experience in the resource industry, including 15 years of experience in uranium mining and exploration. She has navigated Federal and Provincial approvals within a complex regulatory environment, including the successful permitting of the first-of-its-kind Wheeler River ISR feasibility field test. Prior to joining Denison, Ms. Switzer led environmental assessments for the Millennium Mine Project and the Rabbit Lake Tailings Extension with Cameco Corporation and held a senior advisory position with Rio Tinto Exploration within the global Communities and Social Performance department. Ms. Switzer holds a Bachelor of Science Degree from the University of Alberta, is a certified Project Management Professional, and is a member of Metis Nation-Saskatchewan.

Ms. Smith was appointed Vice President Human Resources in 2024, having previously served as Denison's Director, Human Resources and Director, Internal Audit. Prior to joining Denison in 2007, Ms. Smith held positions at Centerra Gold and Imperial Oil Ltd. Ms. Smith has extensive and broad experience in the resource sector, having held senior management positions in the fields of Audit, Accounting, Marketing and Human Resources. Ms. Smith is a Chartered Professional Accountant (CPA, CMA), a Certified Internal Auditor (CIA) and holds a Master of Business Administration (MBA) degree with a concentration in Organizational Behaviour and Human Resources Management from the Lazardis School of Business & Economics at Wilfrid Laurier University.

Mr. David Bronkhorst, Interim Vice President Operations; with Denison as management advisor since his retirement in 2022; prior: Vice President Operations at Denison from 2019.