Otto Schumacher is a professional mining engineer and professional geologist based in Spokane, WA, USA. He holds a Bachelor of Geological Engineering degree from the University of Minnesota and a Master of Science - Geology degree from the University of New Mexico. He has worked as a mining engineer and geologist in underground mine operations for base and precious metals as well as on exploration projects for uranium and iron. He began specializing in mining cost and economic analysis upon joining the U.S. Bureau of Mines as Supervisor, Mining Feasibility Analysis Group, where he was responsible for development of aspects of Bureau systems for mine cost estimating and mineral property evaluation. In 1983 he started Western Mine Engineering, Inc., the predecessor to InfoMine's CostMine division, where he consulted and taught seminars in the area of mine evaluations, and also developed Mining Cost Service and related publications. He presently serves as a Director and technical advisor to CostMine. He is a past president of the Columbia Section of SME and a past president of the Northwest Mining Association.
Shahriar (Sean) Shafiee
Sean is General Manager at R2Mining and in charge of producing all CostMine products within AustralAsia. He is a mineral economist with a B.A in Economics, M.A in Econometrics, and PhD Degree in Mineral Economics through the CRCMining at the University of Queensland. Sean is also involved in teaching mineral economics’ courses at different Universities Australia wide.
Prior to Sean’s current role at R2Mining, he has worked as an industrial consultant at Peabody Energy, Rio Tinto and Xstrata in the Project Valuation and Mineral Price Modelling. Sean completed an internship with InfoMine USA to develop an econometrics coal cost models for Australian coal mines based on the InfoMine models and methodology. He has been always actively involved in teaching, research and consulting in project evaluation and mineral economics courses over the last 10 years.
Sean’s main interests are: advanced mining project evaluation, real option valuation, mining cost estimation, mineral economics, econometrics modelling, and energy economics. In the last couple of years, Sean has also published more than 15 Journal/Conference papers and several Chapter Books in these fields.
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