- API
- AMERICAN POLYFILM Inc.
- Bailey-Parks Urethane
- BASF SE
- Covestro AG
- Coim Group
- DingZing Advanced Materials Inc.
- huafeng group
- Huntsman International LLC
- Mitsui Chemicals Inc.
- Schweitzer-Mauduit International Inc
- Sumei Chemical Co. Ltd
- Suzhou Austin Novel Materials Co. Ltd
- The Lubrizol Corporation
- Tosoh Corporation
- Wanhua Chemical Group Co.Ltd.