1. AdvanSix Inc.
2. Alpek S.A.B. De C.V.
3. Aquafil S.p.A.
4. BASF SE
5. Capro Co.
6. Caprolactam Chemicals Ltd
7. China Petrochemical Corporation
8. China Petrochemical Development Corporation
9. DOMO Chemicals GmbH
10. Fertilisers and Chemicals Travancore Limited
11. Fibrant B.V.
12. Honeywell International Inc.
13. L. Br?ggemann GmbH & Co. KG
14. Labdhi Chemicals
15. Lanxess AG
16. Shchekinoazot company
17. SPOLANA s.r.o.
18. Sumitomo Chemical Co. Ltd.
19. Toray Industries Inc.
20. UBE Corporation
21. Valco Group