| TCThe Chemours Company FC, LLC - La Porte | La Porte | TX | 100–499 | ◐ LIKELY ACTIVE |
| TDThe Dallas Group of America | Jeffersonville | IN | 100–499 | ◐ LIKELY ACTIVE |
| TLThe Lubrizol Corporation | Painesville | OH | — | ◐ LIKELY ACTIVE |
| TFThermo Fisher Scientific | Eugene | OR | 100–499 | ◐ LIKELY ACTIVE |
| TSThe San Antonio Refinery LLC | San Antonio | TX | — | ◐ LIKELY ACTIVE |
| TLTronox LLC | Hamilton | MS | — | ◐ LIKELY ACTIVE |
| UCUnion Carbide Corporation-institute | Institute | WV | 20–99 | ◐ LIKELY ACTIVE |
| UOUS Oil & Refining CO | Tacoma | WA | — | ◐ LIKELY ACTIVE |
| VMValero McKee Refinery | Sunray | TX | 100–499 | ◐ LIKELY ACTIVE |
| VVValley View Industries INC | Crestwood | IL | 20–99 | ◐ LIKELY ACTIVE |
| VCVanderbilt Chemicals, LLC - Murray, KY | Murray | KY | 20–99 | ◐ LIKELY ACTIVE |
| VIVigon International LLC | East Stroudsburg | PA | 100–499 | ◐ LIKELY ACTIVE |
| VCViridis Chemical | Columbus | NE | — | ◐ LIKELY ACTIVE |
| WCWacker Chemical Corporation | Calvert City | KY | 100–499 | ◐ LIKELY ACTIVE |
| WHW.a. Hammond Drierite Co, Limited | Xenia | OH | — | ◐ LIKELY ACTIVE |
| WEWater Engineering, INC. | Mead | NE | — | ◐ LIKELY ACTIVE |
| WMWayne Manufacturing Industries, LLC | Brentwood | NH | — | ◐ LIKELY ACTIVE |
| WPWestern Plastics | Portland | TN | 20–99 | ◐ LIKELY ACTIVE |
| WCWestlake Chemicals and Vinyls, LLC | Plaquemine | LA | 100–499 | ◐ LIKELY ACTIVE |
| WEWestlake Epoxy | Lakeland | FL | 20–99 | ◐ LIKELY ACTIVE |
| WRWestlake Royal Building Products Bristol | Bristol | TN | 100–499 | ◐ LIKELY ACTIVE |
| WRWestlake Royal Building Products Marion | Marion | VA | 100–499 | ◐ LIKELY ACTIVE |
| WFWholesome Foods INC - Edinburg | Edinburg | VA | — | ◐ LIKELY ACTIVE |
| WIWoodward Iodine Corporation | Woodward | OK | 20–99 | ◐ LIKELY ACTIVE |
| WGWR Grace - FCMS Tyrone Site | Tyrone | PA | 100–499 | ◐ LIKELY ACTIVE |
| ZZeochem | Louisville | KY | 20–99 | ◐ LIKELY ACTIVE |
| 3T3m Technical Ceramics Quapaw, LLC | Quapaw | OK | — | ◐ LIKELY ACTIVE |
| FPFresno Precision Plastics, INC. | Clovis | CA | — | ◐ LIKELY ACTIVE |
| PBPierce Biotechnology INC | Rockford | IL | — | ◐ LIKELY ACTIVE |
| 2U2007 Union Carbide Corporation Tco | Texas City | TX | — | ◇ UNVERIFIED |
| APAccella Polyurethane Systems | Cartersville | GA | — | ◇ UNVERIFIED |
| APAccella Polyurethane Systems LLC | Rancho Cucamonga | CA | — | ◇ UNVERIFIED |
| AIAc&s INC | Nitro | WV | — | ◇ UNVERIFIED |
| APAdell Polymers, INC. | Petersburg | WV | — | ◇ UNVERIFIED |
| APAdhesive Polymers Plant | Freeport | TX | — | ◇ UNVERIFIED |
| ASAdm Southport | Southport | NC | — | ◇ UNVERIFIED |
| ACAdvance Coatings Company | Westminster | MA | — | ◇ UNVERIFIED |
| AAAdvanced Architectural Products | Hamilton | MI | — | ◇ UNVERIFIED |
| ARAdvance Research Chemicals INC | Catoosa | OK | — | ◇ UNVERIFIED |
| AIAdvansix INC | Philadelphia | PA | — | ◇ UNVERIFIED |
| ARAerc Recycling Solutions a Clean Earth CO | Allentown | PA | — | ◇ UNVERIFIED |
| ACAfton Chemical Additives Port Arthur Facility | Port Arthur | TX | — | ◇ UNVERIFIED |
| ACAgilyx Corporation | Tigard | OR | — | ◇ UNVERIFIED |
| APAg Processing, INC. Algona Methyl Ester Processing | Algona | IA | — | ◇ UNVERIFIED |
| AFAgrifos Fertilizer L.l.c. | Pasadena | TX | — | ◇ UNVERIFIED |
Airgas Specialty Products - Granite City | Granite City | IL | — | ◇ UNVERIFIED |
| APAir Products and Chemicals, INC. | Carson | CA | — | ◇ UNVERIFIED |
| ANAjay N a LLC | Powder Springs | GA | — | ◇ UNVERIFIED |
| ANAkzo Nobel Coatings INC | Columbus | OH | — | ◇ UNVERIFIED |
| ANAkzo Nobel Coatings INC. | Huron | OH | — | ◇ UNVERIFIED |
| ANAkzo Nobel Polymer Chemicals | Pasadena | TX | — | ◇ UNVERIFIED |
| ACAlbemarle Corporation | Orangeburg | SC | — | ◇ UNVERIFIED |
| ACAlbemarle Corporation-south Plant | Magnolia | AR | — | ◇ UNVERIFIED |
| ACAlbemarle Corporation - West Plant | Magnolia | AR | — | ◇ UNVERIFIED |
| AAlchem | Mentor | OH | — | ◇ UNVERIFIED |
| AWAlcoa World Chemicals | Bauxite | AR | — | ◇ UNVERIFIED |
| ACAldrich Chemical CO LLC - Sheboygan Falls Facility | Sheboygan Falls | WI | — | ◇ UNVERIFIED |
| ACAldrich Chemical Company, Inc.-teutonia | Milwaukee | WI | — | ◇ UNVERIFIED |
| ATAllcoat Technology | Wilmington | MA | — | ◇ UNVERIFIED |
| AIAllen Industries LLC | Sedalia | MO | — | ◇ UNVERIFIED |
| ANAllied New Technologies 2, INC Plant | Palmetto | FL | — | ◇ UNVERIFIED |
| ANAllied New Technologies INC | Port Saint Lucie | FL | — | ◇ UNVERIFIED |
| AUAllied Universal Corporation | Brunswick | GA | — | ◇ UNVERIFIED |
| AUAllied Universal Corporation | Ellisville | MS | — | ◇ UNVERIFIED |
| AUAllnex USA INC | East Saint Louis | IL | — | ◇ UNVERIFIED |
| ABAlon Bakersfield Refinery | Bakersfield | CA | — | ◇ UNVERIFIED |
| AUAlon USA Refinery | Big Spring | TX | — | ◇ UNVERIFIED |
| AGAlpha General Services, LLC | Sebring | FL | — | ◇ UNVERIFIED |
| ARAlpha Resins, LLC | Detroit | MI | — | ◇ UNVERIFIED |
| APAlta Performance Materials Fka Ineos | Bartow | FL | — | ◇ UNVERIFIED |
| APAlta Performance Materials Us, LLC. | Fort Smith | AR | — | ◇ UNVERIFIED |
| ACAlto Columbia, LLC | Boardman | OR | — | ◇ UNVERIFIED |
| ALAltugulas LLC | Louisville | KY | — | ◇ UNVERIFIED |
| ACAmbit Chemical Technologies | Gulfport | MS | — | ◇ UNVERIFIED |
| ASAmericas Styrenics Allyns Point Plant | Gales Ferry | CT | — | ◇ UNVERIFIED |
| ASAmericas Styrenics LLC | Marietta | OH | — | ◇ UNVERIFIED |
| ASAmericas Styrenics LLC - St James Plant | Saint James | LA | — | ◇ UNVERIFIED |
| AIAmerichem INC Cnc | Concord | NC | — | ◇ UNVERIFIED |
| AIAmerichem INC. - Liberty Plant | Liberty | NC | — | ◇ UNVERIFIED |
| AIAmerichem INC Scp | Cuyahoga Falls | OH | — | ◇ UNVERIFIED |
| ASAmerichem Sales CORP | Mason | MI | — | ◇ UNVERIFIED |
| AGAmes Goldsmith CORP | Glens Falls | NY | — | ◇ UNVERIFIED |
| APAmetek/westchester Plastics Div | Nesquehoning | PA | — | ◇ UNVERIFIED |
| ACAmfine Chemical CORP | Hopkinsville | KY | — | ◇ UNVERIFIED |
| ATAmg Titanium LLC | New Castle | PA | — | ◇ UNVERIFIED |
| ACAmpacet CORP - Plastic Processing Plant | Deridder | LA | — | ◇ UNVERIFIED |
| ASAm Stabilizers | Franklin | PA | — | ◇ UNVERIFIED |
| ALAmt Labs INC | North Salt Lake | UT | — | ◇ UNVERIFIED |
| ACAmvac Chemical Corporation, Axis Plant | Axis | AL | — | ◇ UNVERIFIED |
| APAnchor Packaging-marmaduke | Marmaduke | AR | — | ◇ UNVERIFIED |
| ALAoc, LLC | Perris | CA | — | ◇ UNVERIFIED |
| ALAoc L L C Tennessee Plant | Collierville | TN | — | ◇ UNVERIFIED |
| ATAoc Trusted Solutions | Valparaiso | IN | — | ◇ UNVERIFIED |
| APApg Polytech, Llc, Apple Grove Plant | Apple Grove | WV | — | ◇ UNVERIFIED |
| ACApollo Chemical | Burlington | NC | — | ◇ UNVERIFIED |
| AMApplied Material Solutions, INC. | Burlington | WI | — | ◇ UNVERIFIED |
| AIAprm INC | Houston | TX | — | ◇ UNVERIFIED |
| ACAqua Clean Environmental of Virginia | Richmond | VA | — | ◇ UNVERIFIED |
| AUArchroma US INC Martin Plant | Martin | SC | — | ◇ UNVERIFIED |
| AEArcwood Environmental LLC - B-4000 | Orange | TX | — | ◇ UNVERIFIED |