| PRINCIPAL | COUNTRY |
| Agrolinz Melamine International | Italy |
| Appleton | USA |
| BASF | USA |
| Budenheim | Germany |
| Budenheim – Altesa | Spain |
| Budenheim Iberica | Spain |
| BYK-Chemie | Germany |
| Caldic Nederland | The Netherlands |
| Chartwell International Inc. | USA |
| Crimea Titan | Ukraine |
| DuPont Soy Polymers | USA |
| Hy-flux Hydrochem | Singapore |
| Ineos Europe Ltd. | UK |
| Ineos Polyolefins | UK |
| Inner Mongolia Lantai I/E Co. Ltd. | China |
| Jem Tools | Spain |
| JOC International | China |
| Lucas/Protechno | USA |
| M&A Chemical Corporation | China |
| Merisol Rsa (Pty) Ltd. | South Africa |
| Nan Pao Resins Chemical Co. Ltd. | Taiwan |
| Nanjing Xinxiang Industry | China |
| Nanoledge | France |
| Pt Behn Meyer International | Indonesia |
| Quality Minerals Public Company Ltd. | Thailand |
| Quimica Amtex | Colombia |
| Richyu Chemical Co. Ltd. | Taiwan |
| Ruetgers Chemicals | Germany |
| S.A. Reverte | Spain |
| Sasol Polymers | South Africa |
| Sasol Wax | Germany |
| Shaanastro Stai Corporation | China |
| Sichuan Blue sword | China |
| Silmaco | Belgium |
| Solvay Advance Functional Minerals | Italy |
| Solvay Caprolactones | UK |
| Solvay Chemicals | Belgium & Thailand |
| Solvay Fluor | Germany |
| Solvay Solexis | Italy |
| Solvin | Belgium |
| Suixi Pine Forest Perfumer Ltd. | China |
| Vinythai Public Company Ltd. | Thailand |