José Castillo is the Environmental Science Leader at Knight Piésold’s Santiago office. He is a chemical civil engineer, with 20 years of experience in natural and environmental resources. He has extensive experience leading the development of environmental impact studies for mining, industrial, and electrical projects, as well as environmental audits. He has also led the drafting of closure plans for mining operations at the national and international levels. He has participated in geochemical characterization studies of massive mining residues that were applied to environmental impact assessments and closure plans.