1. Air Products and Chemicals Inc.
2. Al-Bilad Catalyst Company Limited by Rezayat Group
3. AMETEK Inc.
4. Axens S.A.
5. BASF SE
6. Chemcat Corporation
7. Chevron Phillips Chemical Company
LLC
8. Clariant AG
9. Cormetech Inc.
10. EBINGER Katalysatorservice GmbH & Co. KG
11. Eurecat
12. Evonik Industries AG
13. Howden Group
14. MIRATECH Corporation
15. Nippon Ketjen Co. Ltd.
16. Pall Corporation
17. Steag GMBH
18. Topsoe A/S
19. Watlow Electric Manufacturing Company
20. Zeochem