- Albemarle Catalysts Company, LP
- Albemarle, Inc.
- Bamberger Polymers
- CCT Corp.
- ChevronPhillips Chemical Company
- Dow Chemical Co.
- ExxonMobil Chemical Co.
- Flint Hills Resources
- Formosa Plastic Corp.
- Ineos Olefins & Polymers USA
- Itochu Chemicals America, Inc.
- LyondellBasell
- M Holland Company
- Marco Polo International, Inc.
- Mexichem America, Inc.
- Octal Petrochemicals, LLC
- Osterman & Company
- Oxyde Chemicals, Inc.
- Pinnacle Polymers
- Poly-Chem International Ltd.
- Polymer Chemical Corp.
- Ravago Group
- Satellite Logistics Group, Inc.
- Solvay USA Inc.
- Sunrise Plastic Enterprise
- T&T Group Inc.
- TMO Global Logistics, LLC
- Unique Chemical Technologies, Inc.
- United Polychem
- Vinmar International, Ltd.
- Westlake Polymers, LLC
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