- Fangda Carbon New Material Co. Ltd
- Graphite India Ltd
- Ibiden Co. Ltd
- Mersen SA
- Morgan
- Nippon Carbon Co. Ltd
- Pingdingshan Kaiyuan Special Graphite Co. Ltd
- SEC Carbon Ltd
- SGL Group
- Tokai Carbon Co. Ltd
- Toyo Tanso Co. Ltd
- Yichang Xincheng Graphite Co. Ltd