Management Team


As the founder and Executive Chairman of enCore Uranium (TSXV:EU), Mr. Sheriff has advanced the company from inception to a near term producer with a multi-jurisdictional United States asset base. Mr Sheriff is an entrepreneur and visionary with over 40 years’ experience in the minerals industry and the securities industry, and has been responsible for significant capital raises along with corporate development. Mr. Sheriff was a pioneer in the uranium renaissance as co-founder and Chairman of Energy Metals Corp., and was responsible for compiling the largest domestic uranium resource base in US history before the company was acquired by Uranium One Corp for $1.8 Billion in 2006. With his in-depth understanding of the nuclear industry and market conditions, plus his knowledge of both the financial markets, Mr. Sheriff is regarded as a leader and avid supporter of nuclear energy as a clean and reliable energy source for the Unites States.

Mr. Sheriff also has a significant interest in the gold exploration sector with personal and corporate gold exploration assets across the United States and Canada. In addition to his personal business interests, Mr. Sheriff serves as the Chairman of Sabre Gold Mines Corp., Executive Chairman of C2C Gold Corp. and is a Director and co-founder of Group 11 Technologies Inc, a private company committed to the development and application of environmentally and socially responsible precious metals mineral extraction as an alternate to conventional mining methods.

Mr. Sheriff holds a B.Sc. degree (Geology) from Fort Lewis College, Colorado and an MSc in Mining Geology from the University of Texas-El Paso and compiled one of the largest privately held mining databases in the world.


Mr. Goranson has thirty- three years of mining, processing and regulatory experience in the uranium extraction industry that includes both conventional and in-situ recovery (ISR) mining. Most recently, Mr. Goranson was the Chief Operating Officer for Energy Fuels Resources (USA) Inc., where he was responsible for the operations of the White Mesa Uranium Mill located in Southeast Utah, the Nichols Ranch ISR uranium and Sheep Mountain projects located in Central Wyoming, and the Alta Mesa ISR uranium project located in South Texas. He was closely involved at the federal level on trade actions and the President’s Nuclear Fuel Working Group interagency process. Mr. Goranson served as President, Chief Operating Officer and Director for Uranerz, where he was responsible for commissioning, operating and expanding the Nichols Ranch ISR Uranium Project. In addition to those duties, he also managed uranium marketing, regulatory and government affairs, exploration, and land groups.

Prior to Cameco Resources, Mr. Goranson was Vice President of Mesteña Uranium LLC where he led the construction, startup and operation of the Alta Mesa project, in Texas, that achieved over one million pounds of uranium production per year under his stewardship. At Mesteña, his responsibilities included responsibility for marketing uranium where he negotiated long term uranium supply contracts with nuclear utilities as well as spot uranium sales. Prior to Mesteña, Mr. Goranson was the manager for radiation safety, regulatory compliance and licensing with Rio Algom Mining LLC, a division of BHP Billiton, in Utah, New Mexico, and Wyoming, and he served in various operational management positions for Uranium Resources, Inc. (now Westwater Resources) in South Texas.

Mr. Goranson most recently served as the President of the Uranium Producers of America, past President of the Wyoming Mining Association, Chairman of the Uranium Environmental Subcommittee for the National Mining Association, Board member of the National Mining Association, and is currently a Board member of the Brush Country Groundwater Conservation District. Mr. Goranson is a registered Professional Engineer in the State of Texas, and he holds a Master of Science in Environmental Engineering and a Bachelor of Science in Natural Gas Engineering from Texas A&M University-Kingsville and Texas A& I University, respectively.

Chief Operating Officer

Mr. Luthiger brings over 35 years of in-situ recovery (ISR) and conventional uranium production, processing, exploration, radiation safety and environmental management experience within the uranium fuel cycle. Recently serving as the Director of Texas Operations for Energy Fuels Inc. managing the Alta Mesa ISR Uranium Project. While working for Energy Fuels, Mr. Luthiger was responsible for the standby operations of the 1.5 million pound U3O8 per year capacity ISR production center during which time successful completion of groundwater restoration and release of financial assurance with the State of Texas was achieved. Mr. Luthiger served as the Vice President of Mesteña Uranium LLC, a private company that owned the Alta Mesa ISR Uranium Project, that at its peak operation employed a workforce of over 100 direct and contractor employees. Prior to that, Mr. Luthiger worked for BHP Billiton PLC/Rio Algom Mining LLC, in Grants, New Mexico where he was the Manager, Regulatory Compliance and Licensing where he managed the decommissioning efforts of two former uranium mills and the accompanying underground mines. Mr. Luthiger was also involved with the radiation safety programs for testing activities at the Nevada Test Site for the U.S. Department of Energy.

Mr. Luthiger also has extensive experience in effectively managing legislative and regulatory affairs, permitting and compliance with a commitment to Health Safety and Environmental (HSE) management excellence. He has directly managed reclamation and closure programs including surface reclamation for ISR and conventional mine/mill sites, tailings facilities, groundwater restoration, and audit support for several diverse extraction operations.

Mr. Luthiger has a degree in Geological Engineering from the Mackay School on Mines, University of Nevada, Reno. He is the Vice Chair of the Texas Mining and Reclamation Association, Section Chair and a member of the Texas Mining and Reclamation Association, Section Chair and a member of the Society of Mining, Metallurgy and Exploration (SME).

Chief Administrative Officer and General Counsel

Mr. Zerzan has held senior leadership positions in both the government and the private sector. During his career in public service, he has held several prominent roles, most recently as Principal Deputy Solicitor of the United States Department of the Interior. In this position, Mr. Zerzan directed legal efforts in areas including energy development, access to public lands, environmental reform, and tribal relations. Previously, Mr. Zerzan was appointed Deputy Assistant Secretary of the United States Treasury and has also served as counsel to three different Congressional committees. In the private sector, Zerzan has been Counsel and Head of Global Public Policy for the International Swaps and Derivatives Association, Director at Koch Companies, and a shareholder in the law firm Jordan Ramis PC. Zerzan has served as a Senior Fellow at the University of Melbourne, Australia School of Law and frequently speaks at conferences, trade associations and on television regarding matters of law and regulatory policy.

Chief Technical Officer

Dr. Stover has a 40-year career focused on direct involvement with commercial uranium exploration, project development, and mining operations. Until his retirement in 2011, Dr. Stover served as Executive Vice President, Americas for Uranium One, Inc. where he oversaw commercial development of Uranium One’s substantial U.S. uranium assets as well other uranium assets in the Americas. Previous to this position, he served as Chief Operating Office for Energy Metals Corporation (EMC) and was instrumental in advancing its US assets prior to its sale to Uranium One, Inc. Dr. Stover holds BSE, MSE, and PhD degrees in Chemical Engineering from The University of Michigan as well as a BA in Chemistry from Kalamazoo College. An author of numerous papers regarding In–Situ Uranium Recovery, he has co-authored three IAEA Guidebooks and Manuals related to both Acidic and Alkaline Uranium ISL technology. He is the author of six United States Patents concerning various aspect of in situ recovery of uranium and reservoir restoration. Dr. Stover is a member of numerous professional societies.

Manager, Geology and Exploration

Dr. Seeley brings over 30 years of professional expertise in geologic, geophysical, and geoinformatics management, natural resource exploration and production management, environmental management, consulting and academics. Prior to his current role with enCore Energy, Dr. Seeley’s past uranium experience included Texas Exploration Manager/GIS Manager/Senior Geologist for Cameco Resources, Inc. in Casper, Wyoming from 2011 to 2013 and Regional Exploration Geologist/GIS Manager for URI, Inc., in Corpus Christi, Texas from 2006 to 2009. He has over 23 years of geologic and geophysical consulting experience with previous uranium consulting for Mesteña Uranium in Corpus Christi, TX (2009-2010), Uranium Energy Corp in Corpus Christi, Texas (2010), and Cameco Resources, Inc. in Casper, Wyoming (2010-2011). Dr. Seeley also served as Assistant Professor of Geosciences at Midwestern State University in Wichita Falls, Texas from 2005 to 2006, and was Adjunct Professor of Geosciences at Northwest Vista College in San Antonio from 2017 to 2018. Dr. Seeley’s previous environmental experience includes soil and groundwater resources management, assessment and restoration. He has served in various geological roles from Staff Geologist to Project Manager, and most recently as Branch Manager, San Antonio regional office for eTech Environmental, Inc. (Midland, Texas) from 2018 to 2021.

He is a Certified Professional Geologist and Licensed Professional Geoscientist in Texas, and a Qualified Person (QP) as defined under National Instrument 43-101 standards.

Dr. Seeley holds a Ph.D. degree in Geology and Geophysics from The University of Texas at El Paso, El Paso, Texas, and both M.Sc. and B.Sc. degrees in Geology from Texas A&I University in Kingsville, Texas.


Ms. Mierkey is a Certified Public Accountant with over 13 years of experience in finance for both private and public companies. She has spent most of her career working in various financial roles at Energy Fuels, Inc. and Cameco Resources (Cameco, Inc.’s U.S. uranium operations). She has experience in operational and production financial reporting and accounting, as well as U.S. GAAP and tax reporting. She also has experience in managing the financial aspects of mergers and acquisitions. Ms. Mierkey comes to the Company from Motion & Flow Control Products, Inc. where she recently served as Corporate Controller.


Mr. Peake previously served as Vice‐President of Lands for Uranium One Americas, Inc. from 2007 to 2010 and with Energy Metals Corporation (US) from 2004 until 2007. He brings over 50 years of experience in natural resource exploration, development and production having worked with major and junior mining companies acquiring and managing surface and mineral rights for uranium and other metals. Mr. Peake is a graduate from the British Columbia Institute of Technology in Mining Technology in 1968 and later completed a Bachelor of Science in Business Management. He is a member of the Nevada Landmans Association and was a Certified Professional Landman for 30 years with the American Association of Professional Landmen (“AAPL”).