Mr. Randy Earl Buffington has been the Chief Executive Officer and President at Allied Nevada Gold Corp., since January 2013 and serves as its Executive Chairman. Mr. Buffington served as the Chief Operating Officer and Executive Vice President of Allied Nevada Gold Corp. from February 4, 2013 to July 08, 2013. Mr. Buffington served as an Senior Vice President of Operations at Coeur Mining, Inc. (also known as Coeur d'Alene Mines Corporation) since January 2012. He served as an Interim Principal Operating Officer of Coeur Mining, Inc. from January 1, 2013 to January 17, 2013. He has over 28 years of experience in the precious metals mining industry providing operational and technical support to large-scale operations in the United States, South America and Africa. His expertise includes senior level technical and strategic planning, mine start-up, operating efficiency and optimization and safety and environmental leadership. Since 2003, he served in a variety of general management roles with Barrick Gold Corporation including Managing Director of Barrick's Lumwana copper project in Zambia and General Manager of the Goldstrike mine complex in Nevada. During his tenure with Barrick, he was also General Manager of the Ruby Hill and Bald Mountain operations in Nevada. He has been Director of Allied Nevada Gold Corp. since July 12, 2013. He served as an Independent Director of Rye Patch Gold Corp. from September 16, 2014 to November 14, 2016. From the late 1980s to 2003, Mr. Buffington held senior roles with both Cominco American and Placer Dome, Inc. Mr. Buffington holds both Bachelor's and Master's degrees in Civil Engineering from the University of Nevada-Reno.