Dr. Nathan M. Stubina, P.E., Ph.D., FCIM has been the Managing Director of McEwen Mining Inc. since July 15, 2014. He focused on precious and base metals. Prior to this, Dr. Stubina served as Vice President of Technology of McEwen Mining Inc. from March 4, 2014 to July 2014. He has more than 25 years of experience in the mining and metallurgy industry. Previously, he worked for Barrick Gold, Noranda and Falconbridge. Prior to his employment at Byron Capital Markets, Dr. Stubina was the Senior Manager???Barrick Technology Centre at Barrick Gold Corporation from 2005 to 2013. Dr. Stubina has expertise in base metals such as copper, nickel and cobalt, as well in gold and PGM processing. He worked in diverse areas such as Operations Management and Support, Technology Development, Continuous Improvement and Commercial Contract Negotiations. Dr. Stubina serves as Vice President of International of the CIM (Canadian Institute of Mining, Metallurgy and Petroleum). Dr. Stubina has nearly thirty years of experience in the mining industry. He served as President of the Metallurgy and Materials Society of Canada. Dr. Stubina is a P.Eng. (Professional Engineers of Ontario). He has a Ph.D. in Metallurgy and Materials Science from University of Toronto. He also holds a B.Eng. in Mining and Metallurgical Engineering and a Master of Engineering from the McGill University.