INEOS Styrolution Group GmbH
Total S.A. Trinseo S.A. BASF SE
SABIC
SIBUR
HIRSCH Servo Ag
Ade Plast
ACH Foam Technologies Inc. Flint Hills Resources
NOVA Chemicals
Alpek S.A.B. de C.V. Sunpor Kunststoff GmbH
Brodr. Sunde A/S
DowDuPont Inc. Chi Mei Corporation
Eni Group
Kaneka Corporation