?- AdvanSix Inc.
- Alpek S.A.B. de CV
- BASF SE
- Capro Co.
- China Petrochemical Development Corporation
- China Petroleum & Chemical Corporation (Sinopec)
- Domo Chemicals
- Fertilisers And Chemicals Travancore Limited (FACT)
- Fibrant
- Fujian Jinjiang Petrochemical
- Juhua Group Corporation
- Lanxess
- PJSC Kuibyshevazot
- Shandong Haili Chemical Industry Co. Ltd
- Sumitomo Chemical Co. Ltd
- Toray Industries Inc.
- UBE Corporation
- Xuyang Group