?- A&P Technology Inc.
- Anshan Sinocarb Carbon Fibers Co. Ltd
- DowAksa USA LLC
- Formosa Plastics Corporation
- Hexcel Corporation
- Holding company Composite
- Hyosung Advanced Materials
- Jiangsu Hengshen Co. Ltd
- Mitsubishi Chemical Corporation
- Nippon Graphite Fiber Co. Ltd
- SGL Carbon
- Solvay
- Teijin Limited
- Toray Industries Inc.
- Zhongfu Shenying Carbon Fiber Co. Ltd