- Albemarle Corporation.
- Apexical Inc.
- BASF SE
- Clariant AG
- Daihachi Chemical Industry CO. LTD
- DIC Corporation
- DowDuPont
- Eti Maden
- ICL Group
- Italmatch Chemicals SpA
- J.M. Huber Corporation
- Jangsu Yoke Technology Co. Ltd
- LANXESS
- MPI Chemie B.V.
- Nabaltec AG
- Nippon Carbide Industries Co. Inc. (Sanwa Chemical Co. Ltd)
- Nyacol Nano Technologies Inc.
- Rin Kagaku Kogyo Co. Ltd
- RTP Company
- Shandong Brother Sci. &Tech. Co. Ltd
- Thor Industries
- TOR Minerals