Ube Industries Ltd (Japan)
Mitsui Chemicals Inc. (US)
SKCKOLONPI (South Korea)
ELANTAS Beck India Ltd (India)
Kaneka Corporation (Japan)
Saint-Gobain (France)
DuPont (US)
TAIMIDE (Taiwan)
and FLEXcon Company Inc. (US)
I.S.T Corporation (Japan)
Toray Industries Inc. (Japan)
SOLVER POLYIMIDE (China)