Advisory Board

Dr. Lee Groat, B.Sc., Ph.D, P.Geo


Professor at Dept. of Earth and Ocean Sciences with University of British Columbia and former NATO Postdoctoral Fellow at Cambridge University. Areas of research include mineralogy, geochemistry and ore deposits.

Bob Lane, M.Sc., P. Geo

Consultant/Advisor & Qualified Person
Registered professional geologist with a Master's degree in geology and more than 20 years of practical field geology as a research geologist with the BC Geological Survey, as the Regional Geologist with the Ministry of Energy & Mines and as a consulting geologist.

Tracey Meintjes, P.Eng

Consultant/Advisor & Qualified Person
Registered professional engineer and Deer Horn’s Qualified Person for matters relating to mineral processing, metallurgical testing, mining capital, mine operating costs, environmental, infrastructure, financial evaluation, and overall report preparation. He has been involved with copper, gold, coal, molybdenum project evaluations and is a specialist in pit and schedule optimization.

Funsho Ojebuoboh, MBA, PhD


Through his distinguished career, Dr. Funsho Ojebuoboh worked with companies such as First Solar, where he assisted in the sourcing and delivery of critical raw materials, including tellurium, that were key to their manufacturing of solar panels. Over his seven-year relationship with First Solar, he provided guidance to stakeholders, including executive management, legal and finance for the review and approval of supply agreements. Dr. Ojebuoboh is a globally recognized author and lecturer on the refinement and practical application of rare metals for solar panels and semi-conductors, including tellurium. He is also a standing member of the Minor Metals Trade Association (MMTA), The International Society for Optical Engineering (SPIE), The Canadian Institute of Mining, Metallurgy and Petroleum (CIM) and The Minerals, Metal and Materials Society (TMS).

James Guilinger, MBA


Mr. Guilinger’s tellurium exploration and development experience spans more than 20 years, involving various investigation consulting projects for tellurium throughout the USA and the world. He holds a Bachelor of Arts Degree in Geology from the University of Colorado and an MBA and International Business & Economics from Regis University, Denver. He is a member of good standing with the Society of Mining Engineers of the A.I.M.E., a member of the Society of Economic Geologists and a member of the QP Geology and the Mining and Metallurgical Society.

John Keller, P.Geo


Formerly the Exploration Manager in North America for First Solar, Mr. Keller is a field-oriented mineral exploration geologist with wide-ranging experience with several mineral commodities and in many geological environments, both in the U.S. and internationally. In 2012, Mr. Keller and a group of investors formed Colorado Klondike Llc to purchase the Klondike property from First Solar, which had recently discontinued its tellurium exploration and development program. Mr. Keller’s recent major exploration projects include tellurium, tungsten, lithium and gold/silver deposits in the western U.S. He has authored or co-authored ten published and peer-reviewed geologic maps for the Colorado Geological Survey, including the Boreas Pass quadrangle published in 2018. He is Certified Professional Geologist (CPG #11088) and a member of the American Institute of Professional Geologists. Mr. Keller is also a Qualified Person (QP) under National Instrument NI-43-101 (Canada).