| SISilpak INC | Pomona | CA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SPSk Pucore INC USA | Covington | GA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SCSkyline Composite INC | Fall River | MA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SDSmfi Dba Four Seasons Leisure Products | Montrose | CO | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SOSmooth on | Easton | PA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SCSnapvent CO | Knoxville | TN | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SCSoluol Chemical CO INC | West Warwick | RI | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SUSolvay USA Incorporated | Hammond | IN | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SASoutheastern Adhesives | Lenoir | NC | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SISpace INC | Baton Rouge | LA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SPSpartech Polycast Warehouse | Hackensack | NJ | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SPSpartech Polycom INC | Kearny | NJ | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SCSpaulding Composites CO | Dekalb | IL | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SMSpears Manufacturing Company | Sylmar | CA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SPSpecialty Polymers | Leominster | MA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SPSpecialty Products | Lakewood | WA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SSta-care | Pardeeville | WI | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
 Starfire Systems INC | Schenectady | NY | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SCStarpak CORP | Houston | TX | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SOState of Delaware Graphics & Printing - 604 Otis Dr, Dover | Dover | DE | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SNStillman Northern CORP | East Syracuse | NY | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SAStonehouse Acquisition CO Llc/chambersburg | Chambersburg | PA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SCSunbelt Chemicals INC | Gulfport | MS | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SCSuncast CORP | Batavia | IL | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SPSunoco Partners M & T - Beaver Terminal | Vanport | PA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SFSunrise Fiberglass Engineering Site | Shelton | WA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SMSuperior Manufacturing Group | Moselle | MS | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SSylvania | Fort Worth | TX | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SFSysco Food Services | Walnut | CA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| TPTalco Plastics | Long Beach | CA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| TMTaylor Made Fiberglass, INC. | Jacksonville | FL | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| TCTec Composites INC. | Jacksonville | FL | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| TDTeel Das, LLC | Baraboo | WI | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| TPTekni Plex INC | Branchburg | NJ | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| TATeknor Apex | St Albans | VT | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| TMTerra Mississippi Nitrogen (melamine Facility) | Donaldsonville | LA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| TDThe Dow Chemical CO | Joliet | IL | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| TGThe Geon Company | Deer Park | TX | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| TMThe Marbleworks | North Port | FL | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| TPThermedics Polymer Products | Woburn | MA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| TFThermo Fisher Scientific | Bedford, Town of | MA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| TPThermoplastic Processes INC | Stirling | NJ | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| TLTicona LLC | Summit | NJ | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| TPTicona Polymers, INC. | Lebanon | TN | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| TSTrelleborg Sealing Solutions US INC | Elk Rapids | MI | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| TCTrimont Chemicals INC | Peabody | MA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| TLTrinseo LLC (p1025) | Midland | MI | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| URUcar Resinas Caribe INC. | Bayamon | PR | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| UTUltra Tech Extrusions of Tennessee INC. | Rocky Top | TN | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| ULUnifi-kinston LLC | Kinston | NC | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
