Graham Speirs

Graham Speirs is an experienced mining executive currently serving as the General Manager of Sierra Sun Group since December 2014, where the company employs nearly a thousand staff and operates the Antapite mining unit after its acquisition in 2016. Additionally, Graham holds the position of Technical Director of Engineering at GEMIN ASSOCIATES S.A.C. Previously, Graham served as Corporate Project Manager at Compañía Minera Milpo, Vice President for Latin America and General Manager for Fosfatos Mantaro at Stonegate Agricom Ltd, and Operations Manager for Central America at B2Gold Corp. Earlier in the career, roles included General Manager for Peru at AMEC, Project Manager at Kilborn Engineering Pacific, and Project Development Manager at REDPATH MINING, showcasing a robust background in mining operations, project management, and corporate leadership.