VICE PRESIDENT, SEBREE OPERATIONS

Mr. De Coning joined Century in 2017, and in 2026 he has been promoted to Vice President, Sebree Operations. He has since served in roles including Plant Manager at Sebree, Casthouse Manager at Sebree and Grundartangi. Prior to joining Century Aluminum, Mr. De Coning held senior operational roles with Alcoa and BHP, including plant leadership and regional operational excellence responsibilities across North America. Mr. De Coning holds a degree in Chemical Engineering from the University of Pretoria and a diploma in Business Administration and Management from the University of South Africa.