- Arakawa Chemicals Industries Ltd
- Du Pont-Toray Co. Ltd
- Flexcon Company Inc.
- IST Corporation
- Kaneka Corporation
- Liyang Huajing Electronic Material Co. Ltd
- Saint-Gobain
- Shinmax Technology Ltd
- SKC Kolon PI Inc.
- Suzhou Kying Industrial Materials Co. Ltd
- Taimide Tech Inc.
- Tianjin Hengji International Trade Co. Ltd
- UBE Industries Ltd
- Yunda Electronic Materials Co. Ltd
- Zhejiang Hecheng Electric Technology Co. Ltd