ASAHI KASEI CORP.
AVIENT CORP.
BASF SE
Chevron Phillips Chemicals
Chimei Corp.
China Petrochemical Corporation (SINOPEC)
Cray Valley
DENKA CO. LTD.
Dynasol Group
EASTMAN CHEMICAL CO.
En Chuan Chemical Industries Co. Ltd.
HEXION INC.
HEXPOL AB
INEOS STYROLUTION
JSR CORP.
KRATON CORP.
Kumho Petrochemical
LCY GROUP
LG CHEM
RTP CO.
Tsrc
VERSALIS S.P.A.
ZEON Corp.