Executive Bios

Mark S. Chalmers

Mark Chalmers is President and CEO of Energy Fuels, bringing a wealth of experience in mining and mineral processing to his position. Prior to his promotion to CEO in 2018, he served as President and Chief Operating Officer (COO) of Energy Fuels.

Prior to Energy Fuels, Mr. Chalmers was the Executive General Manager of Production for Paladin Energy Ltd. where he successfully managed the Langer Heinrich (Namibia) and Kayelekera mines (Malawi) and achieved significant increases in production levels while reducing operating costs.

Mr. Chalmers is an expert in in situ recovery (ISR) uranium production, having managed both the Beverley Uranium Mine owned by General Atomics (Australia) and the Highland mine owned by Cameco Corporation (USA). Additionally, he has consulted several key industry leaders in the uranium supply sector, including BHP, Rio Tinto, and Marubeni.

Mr. Chalmers holds a Bachelor of Science in mining engineering from the University of Arizona, is a registered professional engineer and served as the Chair of the Australian Uranium Council for ten years. Holding dual citizenship in the U.S. and Australia, Mr. Chalmers resides in Lakewood, Colorado with his wife while his two adult daughters live in Australia.