Robert L. Cotton Jr. (Bob)
President and Chief Executive Officer
North East Louisiana State University 1975
Jose Ramirez Casas
Executive Vice President & Chief Mining Engineer
University of Autonoma de Zacatecas, Mexico 1973
Mining and Metallurgical Engineering
Sharon Vazquez
Vice President and Corporate Secretary
Ruben de Jesus Leyva de Alba
Chief Geologist
Robert L. Cotton III
Manager Product Quality Control
Kingwood Community College
