DuPont
A. Schulman Inc. BASF SE
Korea Engineering Plastics Company Limited
Polyplastics Co. Ltd
Celanese Corporation
Asahi Kasei Corporation
Formosa Plastics Corporation
Kolon Plastic Inc. LG Chem
Mitsubishi Engineering-Plastics Corporation
Barlog Plastics GmbH
SABIC
Polimersan
RTP Company
China National Chemical Corporation (ChemChina)