1. Akema S.r.l.
2. Allan Chemical Corporation
3. Ashland Inc.
4. Biosynth Ltd.
5. ChemQuest International Inc.
6. Cigna Corporation
7. Clariant AG
8. DSM Nutritional Products AG
9. Hubei Shunhui Biotechnology Co. Ltd.
10. Mario Zunino & C. S.r.l.
11. Merck KGaA
12. Rita Corporation
13. Spectrum Chemical Mfg. Corp. by Spectrum Laboratory Products Inc.
14. Tokyo Chemical Industry Co. Ltd.
15. UL LLC