| SISolutia INC - Indian Orchard Plant | Springfield | MA | — | ◇ UNVERIFIED |
| SASolvay Advanced Polymers | Alpharetta | GA | — | ◇ UNVERIFIED |
| SCSolvay Clanton Road Grading Plan | Augusta | GA | — | ◇ UNVERIFIED |
| SSSolvay Solexis INC | Thorofare | NJ | — | ◇ UNVERIFIED |
| SSSolvay Specialty Polymers USA | Borger | TX | — | ◇ UNVERIFIED |
| SUSolvay USA INC | Winder | GA | — | ◇ UNVERIFIED |
| SISongwon International Americas INC. - La Porte | La Porte | TX | — | ◇ UNVERIFIED |
| STSpartech Townsend | Pleasant Hill | IA | — | ◇ UNVERIFIED |
| SISpecialty Industrial Products, INC. | Spartanburg | SC | — | ◇ UNVERIFIED |
| SPSpecialty Polymers | Woodburn | OR | — | ◇ UNVERIFIED |
| SPSpecialty Polymers INC | Chester | SC | — | ◇ UNVERIFIED |
| SCStabond CORP | Gardena | CA | — | ◇ UNVERIFIED |
| SIStarpet Incorporated | Asheboro | NC | — | ◇ UNVERIFIED |
| SCStepan Company | Elwood | IL | — | ◇ UNVERIFIED |
| SCStepan Company - Fieldsboro Plant | Fieldsboro | NJ | — | ◇ UNVERIFIED |
| SPSti Polymer, INC | Sanford | NC | — | ◇ UNVERIFIED |
| SCStruktol Company of America | Cuyahoga Falls | OH | — | ◇ UNVERIFIED |
| SAStyrolution America LLC | Decatur | AL | — | ◇ UNVERIFIED |
| SSupelco | Bellefonte | PA | — | ◇ UNVERIFIED |
| SSSurface Specialties Incorporated | North Augusta | SC | — | ◇ UNVERIFIED |
| SSSyensqo Specialty Polymers Usa, LLC | Greenville | SC | — | ◇ UNVERIFIED |
| SUSyensqo USA LLC | Pasadena | TX | — | ◇ UNVERIFIED |
| SCSyntech Chemicals | Houston | TX | — | ◇ UNVERIFIED |
| SASynthomer Adhesive Tehcnologies Eastoflex and East | Longview | TX | — | ◇ UNVERIFIED |
| SISynthomer INC. | Mogadore | OH | — | ◇ UNVERIFIED |
| TETaminco Eastman US - St Gabriel Plant | Saint Gabriel | LA | — | ◇ UNVERIFIED |
| TLTate & Lyle Ingredients Americas LLC | Duluth | MN | — | ◇ UNVERIFIED |
| TLTate & Lyle Sucralose INC | Mc Intosh | AL | — | ◇ UNVERIFIED |
| TMTaylor Made Group LLC | Gloversville | NY | — | ◇ UNVERIFIED |
| TATci America | Portland | OR | — | ◇ UNVERIFIED |
| TCTedia Company INC | Fairfield | OH | — | ◇ UNVERIFIED |
| TATeknor Apex CO. | Pawtucket | RI | — | ◇ UNVERIFIED |
| TATeknor Apex Company, Maclin Division | City of Industry | CA | — | ◇ UNVERIFIED |
| TATeknor Apex Thermoplastic | Leominster | MA | — | ◇ UNVERIFIED |
| TPTencate Performance Composites | Camarillo | CA | — | ◇ UNVERIFIED |
| TDThe Dow Chemical CO | Wilmington | IL | — | ◇ UNVERIFIED |
| TDThe Dow Chemical Company | Marietta | GA | — | ◇ UNVERIFIED |
| TFThermo Fisher Scientific CO | Bridgewater | NJ | — | ◇ UNVERIFIED |
| TFThermo Fisher Scientific (milwaukee) LLC | Milwaukee | WI | — | ◇ UNVERIFIED |
| TIThombert INC - Brooklyn | Brooklyn | IA | — | ◇ UNVERIFIED |
| TCTotalenergies Cray Valley - Beaumont | Beaumont | TX | — | ◇ UNVERIFIED |
| TPTotalenergies Petrochemicals & Refining Usa, INC. - Carville Polystyrene Plant | Carville | LA | — | ◇ UNVERIFIED |
| TPTotal Petrochemicals & Refining USA INC | Deer Park | TX | — | ◇ UNVERIFIED |
| TCTower Chemical Corporation | Easton | PA | — | ◇ UNVERIFIED |
| TCTroy Corporation - Troy Biosciences | Phoenix | AZ | — | ◇ UNVERIFIED |
| TSTsrc Specialty Materials LLC - Research & Development Pilot Plant | Plaquemine | LA | — | ◇ UNVERIFIED |
| TLTwin Lake Chemical, INC. | Lockport | NY | — | ◇ UNVERIFIED |
| TBTwist Bioscience | Wilsonville | OR | — | ◇ UNVERIFIED |
| UAUltra Additives Incorporated | Clover | SC | — | ◇ UNVERIFIED |
| UPUltra Pure Solutions INC | Carrollton | TX | — | ◇ UNVERIFIED |
