Alcoa Corporation announced that its portfolio of bauxite mines and alumina refineries in Western Australia have received certification from the Aluminium Stewardship Initiative (ASI). ASI’s Performance Standard certification process requires a comprehensive, third-party audit, which was completed successfully at the Huntly and Willowdale bauxite mines and the Kwinana, Pinjarra, and Wagerup alumina refineries. ASI is a global sustainability certification program for the aluminum industry, representing both upstream producers and downstream manufacturers, with participation from a broad spectrum of civil society organizations.