| CWCelanese - Washington Works | Washington | WV | Chemical Manufacturing325211 | 100-499 | ◐ LIKELY ACTIVE |
| CLCovestro LLC | Proctor | WV | Chemical Manufacturing325199 | — | ◐ LIKELY ACTIVE |
| EDEmpire Diversified Energy LLC | Follansbee | WV | Chemical Manufacturing325194 | — | ◐ LIKELY ACTIVE |
| IWInnovative Water Care LLC (formerly Clearon Corporation) | South Charleston | WV | Chemical Manufacturing325998 | — | ◐ LIKELY ACTIVE |
| KMKenton Meadows - Fast Fuel Food Stores INC | Gassaway | WV | Chemical Manufacturing325998 | — | ◐ LIKELY ACTIVE |
| MUMinova USA INC | Bluefield | WV | Chemical Manufacturing325991 | — | ◐ LIKELY ACTIVE |
| NNewchem | New Cumberland | WV | Chemical Manufacturing325180 | — | ◐ LIKELY ACTIVE |
| PSPhoenix Solutions, LLC | Morgantown | WV | Chemical Manufacturing325998 | — | ◐ LIKELY ACTIVE |
| SPSpecialty Products Us, LLC - Polyox Plant | Institute | WV | Chemical Manufacturing325199 | — | ◐ LIKELY ACTIVE |
| UCUnion Carbide Corporation-institute | Institute | WV | Chemical Manufacturing325199 | 20-99 | ◐ LIKELY ACTIVE |
| AEAllegheny Energy Pleasants Power Station | Belmont | WV | Chemical Manufacturing325110 | — | ◐ LIKELY ACTIVE |
| ASAltivia Services, Llc, Institute Plant | Dunbar | WV | Chemical Manufacturing325110 | — | ◐ LIKELY ACTIVE |
| ESElementis Specialties - New Martinsville Plant | Proctor | WV | Chemical Manufacturing325199 | — | ◐ LIKELY ACTIVE |
| GWGlyeco West Virginia INC - Recovery Solutions & Technologies INC | Nitro | WV | Chemical Manufacturing325110 | — | ◐ LIKELY ACTIVE |
| GCGoodrich Corporation, Union | Union | WV | Chemical Manufacturing325110 | — | ◐ LIKELY ACTIVE |
| M3Mc (us) 3 Llc, Glutaraldehyde Plant | Dunbar | WV | Chemical Manufacturing325110 | — | ◐ LIKELY ACTIVE |
| MPMylan Pharmaceuticals, Inc., Morgantown | Morgantown | WV | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| SISabic Innovative Plastics US LLC | Washington | WV | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| SOSf Opco, Llc, Reedsville | Reedsville | WV | Chemical Manufacturing325221 | — | ◐ LIKELY ACTIVE |
| UCUnion Carbide Corporation - Ucc Technology Park Operations | South Charleston | WV | Chemical Manufacturing325199 | — | ◐ LIKELY ACTIVE |
| WVWest Virginia Methanol, Inc, Pleasants County | Saint Marys | WV | Chemical Manufacturing325199 | — | ◐ LIKELY ACTIVE |
| YIYunigen INC. | Morgantown | WV | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| AIAc&s, Inc., Nitro | Nitro | WV | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| APAdell Plastics, INC. | Petersburg | WV | Chemical Manufacturing325991 | — | ◇ UNVERIFIED |
| AUAirgas USA LLC | Poca | WV | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| AFAmerican Foam Technologies | Maxwelton | WV | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| AFAmerican Foam Technologies | Ronceverte | WV | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| ARAtlantic Research Corporation | Kearneysville | WV | Chemical Manufacturing325222 | — | ◇ UNVERIFIED |
| AFAugusta Fiberglass - Longview | Maidsville | WV | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| BMBayer Materialscience LLC ( Sc Technical Center) | South Charleston | WV | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| BRBayer Research and Development | Weirton | WV | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| BMBrenntag Mid-south, INC | Nitro | WV | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| CCCabot CORP. Ohio River Plant | Waverly | WV | Chemical Manufacturing325182 | — | ◇ UNVERIFIED |
| CSCamc - Solutions | Charleston | WV | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| CCColumbian Chemcials Company | Proctor | WV | Chemical Manufacturing325182 | — | ◇ UNVERIFIED |
| CCColumbian Chemicals Company | Proctor | WV | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| CCColumbian Chemicals Company, Moundsville | Moundsville | WV | Chemical Manufacturing325182 | — | ◇ UNVERIFIED |
| CCCongo Corporation | Chester | WV | Chemical Manufacturing325188 | — | ◇ UNVERIFIED |
| CMCreo Manufacturing America LLC | Middleway | WV | Chemical Manufacturing325992 | — | ◇ UNVERIFIED |
| CACustom Applicators | Pettyville | WV | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| CCCycle Center | Huntington | WV | Chemical Manufacturing325194 | — | ◇ UNVERIFIED |
| CICytec Industries, Willow Island Plant | Belmont | WV | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| DRDwr Research CO | Pennsboro | WV | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| ESElementis Specialties, INC. | Charleston | WV | Chemical Manufacturing325110 | — | ◇ UNVERIFIED |
| EIEnviromine, INC. | Nitro | WV | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| FIFasloc INC Potomac River Plant | Falling Waters | WV | Chemical Manufacturing325520 | — | ◇ UNVERIFIED |
| FEFike Enterprises INC | Nitro | WV | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| FGFlint Group Printing Systems US Llc, Huntington | Huntington | WV | Chemical Manufacturing325110 | — | ◇ UNVERIFIED |
| FCFmc Corporation, Spring Hill Plant | South Charleston | WV | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| FMF M C CORP - Specialty Chem Div | Bens Run | WV | Chemical Manufacturing325181 | — | ◇ UNVERIFIED |