Mack Rojas has extensive experience in maintenance and planning within the mining industry, having held various leadership roles at Freeport-McMoRan since 2001. Currently serving as Maintenance and Planning Superintendent, Mack oversees maintenance operations at the Crush&Convey division of El Abra, with previous positions including Maintenance Services and Contract Superintendent, and Electrical/Instrumentation and Process Control Superintendent. Mack has also contributed to significant projects, such as the supervision of the Sulfolix Project, valued at USD $450M. Academic credentials include diplomas in Negotiation and Contract Administration from Pontificia Universidad Católica de Chile and a degree in Civil Industrial Engineering from Universidad de Antofagasta.