LyondellBasell Industries Holdings B.V.
Mitsui Chemicals Inc.
Kingfa Technology
Borealis AG
Washington Penn Plastic Co. Inc.
Sumitomo Chemical Co. Ltd.
Japan Polypropylene Corporation
Saudi Basic Industries Corporation (SABIC)
Avient Corporation
Hexpol AB (RheTech)
Ravago
Hyundai Engineering Plastics
APPL Industries Limited
Rialti S.p.A