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Todd harvey, ph.d.

President and director of process engineering

Dr. Harvey is a Process Engineer with over 25 years of experience in mining, renewable energy, and technology. He has solid leadership skills with C-level experience (top management) combined with an excellent technical background and a proven track record of innovation and problem solving across multiple disciplines. Dr. Harvey is a Qualified Person under the Society of Mining Engineers (SME) Registered Member accreditation. Dr. Harvey’s background includes: conventional gold recovery processes and refractory gold pretreatment via pressure oxidation, stirred tank BIOX, heap biooxidation, and roasting circuit design. Conventional base metal process design including polymetallic flotation, conventional oxide heap leaching, heap bioleaching and stirred tank bioleaching. Dr. Harvey has performed consulting for several companies in the field of process design and optimization, due diligence, and financial modeling. He possesses significant international experience, having lived in West Africa and South Africa and conducted a variety of projects in multiple countries. Dr. Harvey has extensive experience designing, performing, and analyzing metallurgical test work including mineralogy, crushing, grinding, gravity separation, filtration/thickening, flotation, CIL, heap leaching (gold/copper/zinc), refractory ore treatment (bioleaching – heap/tank, autoclaves, roasting), SX/EW ,and tailings treatment. He has authored over 20 peer-reviewed technical papers and numerous studies and has presented at a variety of international conferences. He holds patents related to bioheap leaching biofuels production.


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