AVIENT CORP.
BASF
CELANESE CORP.
COVESTRO AG
DUPONT
ENSINGER GMBH
IMERYS
KANEKA CORP.
LANXESS
LYONDELLBASELL
Mitsubishi Engineering-Plastics Corp.
ROYAL DSM N.V.
RTP CO. INC.
SABIC
SAINT-GOBAIN
TE CONNECTIVITY
TORAY INDUSTRIES INC.