Mr. Lopatnikov is a managing director of American Appraisal in Russia and CIS. He specializes in providing valuation opinion and advisory services to major metals and mining companies operating in Russia, China, Kazakhstan, Mongolia, South Africa, and Australia, including Norilsk Nickel, Molycorp, Polymetal, ENRC, Rusal, Kazakhmys, Evraz, Mechel, Severstal-Resource, Petropavlovsk, IRC Ltd, Mongolian Mining Corporation, UMMC, Metalloinvest, Sino Oil and Gas Holdings and many others.

He is a leader of American Appraisal Global Extractive Industries Team and part of the expert group set up by the International Valuation Standards Council to develop IVS valuation standards for extractive industries. Mr. Lopatnikov is a member of the Russian Society of Appraisers, Royal Institution of Chartered Surveyors (RICS), the Canadian Institute of Mining, Metallurgy and Petroleum, and a Candidate Member of the American Society of Appraisers.