David D. Cates President and Chief Executive Officer, Denison Mines Corp.

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. Prior to his appointment as President and Chief Executive Officer, Mr. Cates served as Denison's Vice President Finance, Tax and Chief Financial Officer. As Chief Financial Officer, Mr. Cates played a key role in the Company's mergers and acquisitions activities - leading the acquisition of Rockgate Capital Corp. and International Enexco Ltd. Mr. Cates joined Denison in 2008 and held the position of Director, Taxation prior to his appointment as Chief Financial Officer. Prior to joining the Company, Mr. Cates held positions at Kinross Gold Corp. and PwC LLP with a focus on the resource industry.