Senior Management

Roland Horst of Campbellville, Ontario
Mr. Horst has been Chief Executive Officer and a Director of the Company since March 2010.  Mr. Horst has 35 years of mining industry experience as a chief executive officer, investment banker, corporate banker and geologist, including 14 years as a CEO of both public and private companies involved in mining production, development and exploration in Canada, Brazil and Chile. 
Carlos Mirabal of Santa Cruz, Bolivia
Mr. Mirabal has been President and Chief Operating Officer of the Company since March 2010 and a Director since October 2006.  Mr. Mirabal was President and Chief Executive Officer of the Company from October 2006 to February 2010.  Prior to joining Orvana, Mr. Mirabal was Vice President of Operations of Sinchi Wayra S.A. (formerly Compania Minera del Sur S.A. (“Comsur”)), a Bolivian mining company.
Don Gray of Spokane, Washington
Mr. Gray has been Vice President, Mining of the Company since February 2010.  He has extensive mining development and operations experience in the United States, Mexico, and South America. Prior to joining Orvana, he was Senior Vice President, South American Operations for Coeur d’Alene Mines.  Mr. Gray holds a BSc. In Mining Engineering from the University of Idaho and an M.S. Civil Engineering from the Massachusetts Institute of Technology.  
Malcolm King of Toronto, Ontario
Mr. King has been Vice President and Chief Financial Officer of the Company since February 2006, and was a Director of the Company from May 2006 to December 2007. Mr King was Vice President and Controller of the Company from June 2005 to February 2006. Prior to joining Orvana, Mr. King was Chief Financial Officer and a Director of IQ-Ludorum plc, and Vice President, Finance and Vice President & Corporate Comptroller of the Telemedia group.
Bill Williams of Phoenix, Arizona
Dr. Williams has been Vice President, Corporate Development of the Company since March 2008. He received his Ph.D. in Economic Geology from the University of Arizona after spending eight years in the oil & gas industry with Tenneco Oil Company. Since then he has held various positions in minerals exploration and project development throughout the Americas with Western Mining, Northern Orion, Phelps Dodge and Freeport-McMoRan. Prior to joining Orvana, he was Vice President, Americas for Freeport-McMoRan Exploration Corporation.