George Demopoulos holds the Gerald Hatch Chair in Materials Engineering at McGill University. He is internationally renowned for outstanding research in hydrometallurgy and advanced energy material processing, academic leadership, and professional contributions. In terms of leadership he has served as Chair of McGill's Department of Mining & Materials Engineering from 1994 to 1999 and from 2015 to 2020 and as President of the Metallurgy and Materials Society of CIM from 2006-2007.  Dr. Demopoulos has contributed to the training of over 100 researchers in industry-linked projects and published more than 250 influential papers. His work has enabled ground-breaking developments in the environmentally sensitive area of arsenic immobilization, important to the sustainable exploitation of mineral resources, and opened new pathways via impactful collaborations in engineering scalable and clean processing of advanced battery and photovoltaic materials for a green energy future.