Monrovia – ArcelorMittal Liberia has announced the appointment of Michiel Van Der Merwe as the new Chief Executive Officer for ArcelorMittal Liberia, effective July 1, 2024. Van Der Merwe will report to Kleber Silva, Executive Vice President of ArcelorMittal and Chief Executive Officer of ArcelorMittal Mining, as outgoing CEO Jozephus (Joep) Coenen retires, according to [.