| Sinopec Qilu Petrochemical Company Ltd. |
Ticona |
| SINOPEC Shanghai Petrochemical Co. Ltd. |
Tipco Industries Ltd. |
| SK Corporation |
Tisan |
| Slovnaft Petrochemicals, s.r.o. |
Titan Group |
| Solvay Specialty Polymers |
Toler Chemical, Inc |
| Spartech Plastics |
TOSOH Corporation |
| Spartech Polycom |
TOTAL PETROCHEMICALS |
| SPDC Ltd. |
TP Composites, Inc. |
| Sterigenics International, Inc. |
TPC, The Polyolefin Company (Singapore) Pte Ltd |
| SUMINISTROS PLASTICOS EUROPEOS, S.A. |
TPI Polene Public Company Limited |
| Sumitomo Bakelite Co., Ltd. |
Trademark Plastics Corporation |
| Sumitomo Chemical Asia |
TVK Plc. (Tiszai Vegyi Kombinát) |
| Supreme Petrochem Ltd. |
Tyne Plastics LLC. |
| TASNEE National Petrochemical Industrialization Marketing Company |
UBE America, Inc. |
| Techmer Lehvoss Compounds |
UNIPETROL RPA |
| TechnoCompound GmbH |
United Polychem |
| Teknor Apex Asia Pacific PTE. LTD. |
USI Corporation |
| Teknor Apex Company |
Washington Penn Plastic Co. Inc. |
| TER HELL PLASTIC GMBH |
Westlake Chemical Corporation |
| The Dow Chemical Company |
Westlake Plastics Company |
| The Matrixx Group, Inc. |
YUHWA Korea Petrochemical Ind. Co., Ltd. |
| The Plastics Group |
|
