1. Alcoa Corporation
2. Allegheny Technologies Incorporated
3. AMG Advanced Metallurgical Group NV
4. DuPont de Nemours Inc.
5. Huntsman Corporation
6. Iluka Resources Ltd.
7. Indian Rare Earths Limited
8. Ineos Group Ltd.
9. Kenmare Resources Plc
10. Kronos Worldwide Inc.
11. Rio Tinto Plc
12. Sachtleben Chemie GmbH
13. Sierra Rutile Limited
14. Sumitomo Corporation
15. Titanium Metal Corporation
16. TiZir Limited
17. Toho Titanium Co. Ltd