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| AIAc&s INC | Nitro | WV | Chemical Manufacturing325199 | 20-99 | ◐ LIKELY ACTIVE |
| MRMassey Rail Yard, Union Carbide Corporation | South Charleston | WV | Food Manufacturing311942 | 20-99 | ◐ LIKELY ACTIVE |
| SUStockmeier Urethanes Usa, INC | Clarksburg | WV | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| TCThe Chemours CO LLC - Belle Facility | Belle | WV | Chemical Manufacturing325110 | 100-499 | ◐ LIKELY ACTIVE |
| ATAlliant Techsystems Operations Llc, Allegany Ballistics | Rocket Center | WV | Chemical Manufacturing325920 | — | ◐ LIKELY ACTIVE |
| APApg Polytech, Llc, Apple Grove Plant | Apple Grove | WV | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| BMBayer Materialscience | New Martinsville | WV | Chemical Manufacturing325110 | — | ◐ LIKELY ACTIVE |
Braskem America, Inc., Neal | Kenova | WV | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| EIEcolab INC | Martinsburg | WV | Chemical Manufacturing325611 | — | ◐ LIKELY ACTIVE |
| KMKingsford Manufacturing Company, Beryl | Piedmont | WV | Chemical Manufacturing325191 | — | ◐ LIKELY ACTIVE |
| MSMpm Silicones LLC | Friendly | WV | Chemical Manufacturing325110 | — | ◐ LIKELY ACTIVE |
| NNewchem | New Cumberland | WV | Chemical Manufacturing325180 | — | ◐ LIKELY ACTIVE |
| SGSi Group INC - South Plant | Morgantown | WV | Chemical Manufacturing325199 | — | ◐ LIKELY ACTIVE |
| SPSpecialty Products Us, LLC - Polyox Plant | Institute | WV | Chemical Manufacturing325199 | — | ◐ LIKELY ACTIVE |
| SPStar Plastics, Llc, Ravenswood | Ravenswood | WV | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| UCUnion Carbide Corporation, Institute Plant | Institute | WV | Chemical Manufacturing325110 | — | ◐ LIKELY ACTIVE |
| UCUnion Carbide CORP -so Charleston Fac. | South Charleston | WV | Chemical Manufacturing325110 | — | ◐ LIKELY ACTIVE |
| UCUnion Carbide CORP Technology Park | Charleston | WV | Chemical Manufacturing325110 | — | ◐ LIKELY ACTIVE |
| UMUS Methanol Llc, Liberty One Methanol Plant | Nitro | WV | Chemical Manufacturing325199 | — | ◐ LIKELY ACTIVE |
| ANAshland Neal Plant | Kenova | WV | Chemical Manufacturing325110 | — | ◐ LIKELY ACTIVE |
| ANAxens North America, INC | Belmont | WV | Chemical Manufacturing325180 | — | ◐ LIKELY ACTIVE |
| CICytec Industries, Inc., Willow Island | Willow Island | WV | Chemical Manufacturing325110 | — | ◐ LIKELY ACTIVE |
| ESElementis Specialties - New Martinsville Plant | Proctor | WV | Chemical Manufacturing325199 | — | ◐ LIKELY ACTIVE |
| TGTroy Group, Inc., Wheeling | Wheeling | WV | Chemical Manufacturing325510 | 100-499 | ◐ LIKELY ACTIVE |
| UTUnivation Technologies LLC - Catalyst Plant | South Charleston | WV | Chemical Manufacturing325110 | — | ◐ LIKELY ACTIVE |
| WHWillert Home Prods | Kenova | WV | Chemical Manufacturing325320 | — | ◐ LIKELY ACTIVE |
| ZCZinsser & CO INC New Parks Div | Lesage | WV | Chemical Manufacturing325510 | — | ◐ LIKELY ACTIVE |
| ZLZoetis LLC | Saint Marys | WV | Chemical Manufacturing325411 | — | ◐ LIKELY ACTIVE |
| AEAllegheny Energy Pleasants Power Station | Belmont | WV | Chemical Manufacturing325110 | — | ◐ LIKELY ACTIVE |
| AMAoc Materials, INC | Kenova | WV | Chemical Manufacturing325194 | — | ◐ LIKELY ACTIVE |
| CWCelanese - Washington Works | Washington | WV | Chemical Manufacturing325211 | 100-499 | ◐ LIKELY ACTIVE |
| CLCovestro LLC | Proctor | WV | Chemical Manufacturing325199 | — | ◐ LIKELY ACTIVE |
| CICytec Industries INC - Willow Island Plant | Belmont | 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 |
| PSPhoenix Solutions, LLC | Morgantown | WV | Chemical Manufacturing325998 | — | ◐ LIKELY ACTIVE |
| TSTcl Specialties LLC | Proctor | WV | Chemical Manufacturing325199 | — | ◐ LIKELY ACTIVE |
| TNTeMa North America LLC | Kearneysville | WV | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| UCUnion Carbide Corporation-institute | Institute | WV | Chemical Manufacturing325199 | 20-99 | ◐ LIKELY ACTIVE |
| WHWashington Homeopathic Products, INC. | Berkeley Springs | WV | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| WVWest Virginia Methanol, Inc, Pleasants County | St. Marys | WV | Chemical Manufacturing325199 | — | ◐ LIKELY ACTIVE |
| GCGoodrich Corporation, Union | Union | WV | Chemical Manufacturing325110 | — | ◐ LIKELY ACTIVE |
| M3Mc (us) 3 LLC | Dunbar | WV | Chemical Manufacturing325199 | — | ◐ 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 |