SGL Carbon (Germany)
Sigmatex (UK)
Teijin Limited (Japan)
ZOLTEK Corporation (US)
ELG Carbon Fibre Ltd (UK)
Carbon Conversions (US)
Carbon Fiber Recycling (US)
CFK Valley Stade Recycling GmbH & Co. KG (Germany)
Haden (Germany)
PROCOTEX CORPORATION (Belgium)
Shocker composites LLC (US)
and Vartega Inc (US)