| ArcelorMittal Long Products Canada GP | 100.00 | - | - | |
| ArcelorMittal Brasil | 97.08 | - | - | |
| ArcelorMittal Dofasco GP | 100.00 | - | - | |
| ArcelorMittal Méditerranée SAS | 100.00 | - | - | |
| Tameh Holding | 50.00 | - | - | |
| ArcelorMittal Kryvyi Rih | 95.13 | - | - | |
| EcoCem France | 49.00 | - | - | |
| Arcelormittal Prijedor | 51.00 | - | - | |
| ArcelorMittal Poland | 100.00 | - | - | |
| ArcelorMittal España SA | 99.85 | - | - | |
| AM Global Holding | 100.00 | - | - | |
| Baffinland Iron Mines | - | - | - | |
| Acciaierie d'italia | 62.00 | - | - | |
| ArcelorMittal France | 100.00 | - | - | |
| ArcelorMittal Mineração Serra Azul SA | 100.00 | - | - | |
| Arcelormittal Warszawa | 25.00 | - | - | |
| ArcelorMittal Hamburg | 100.00 | - | - | |
| Consorcio Minero Benito Juarez Peña Colorada SA de CV | 50.00 | - | - | |
| ArcelorMittal México SA de CV | 100.00 | - | - | |
| ArcelorMittal Bremen | 100.00 | - | - | |
| ArcelorMittal Nippon Steel India | 60.00 | - | - | |
| ArcelorMittal Duisburg | 100.00 | - | - | |
| AM/NS Calvert | 100.00 | - | - | |
| ArcelorMittal Liberia | 85.00 | - | - | |
| ArcelorMittal Eisenhüttenstadt GmbH | 100.00 | - | - | |
| ArcelorMittal Holdings | - | - | - | |
| Acindar Industria Argentina de Aceros | 100.00 | - | - | |
| ArcelorMittal Mining Canada GP | 85.00 | - | - | |