- ArcelorMittal
- SSAB
- POSCO
- thyssenkrupp Steel
- United States Steel Corporation
- Kobe Steel
Ltd. - Baosteel Co. Ltd.
- JFE Steel Corporation
- Tata Steel
- Cleveland-Cliffs Inc.
- voestalpine Stahl GmbH
- JSW
- NATIONAL MATERIAL COMPANY
LLC - Kloeckner Metals Corporation
- Nucor Corporation
- AK Steel International B.V.