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23 - 25 February 2012
Seattle, WA, USA   
Otto Schumacher, P.E.
Otto 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. Scott Stebbins, P.E.
He began his career at the U.S. Bureau of Mines in 1980, where he was involved in the various aspects of mineral property evaluation. In 1990 he resigned from the Bureau and went to work for Western Mine Engineering, Inc. (now InfoMine USA, Inc.). While there, he specialized in cost model development and equipment operating costs determination. In 1995, he founded Aventurine Engineering, Inc., as a platform from which to develop and market cost-estimating and economic-evaluation software. In addition to software development, Mr. Stebbins has worked consistently since leaving the Bureau of Mines as a mine and mineral processing cost estimator and consultant with over 100 project evaluations to his credit. Most recently, he was tasked with writing the chapters on both surface and underground mine cost estimating for the upcoming release of the 3rd edition of the Society of Mining Engineer's Mining Engineering Handbook. |
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. 
Mr. Stebbins is licensed in Washington State, USA, as a professional mining engineer. For thirty years his work has focused on estimating the costs and determining the economic viability of almost every facet of proposed mineral development projects.