| PAPhibro AHC Willow Island | Willow Island | WV | Chemical Manufacturing325411 | 20-99 | ◐ LIKELY ACTIVE |
| P6Prime 6 LLC | Fairmont | WV | Chemical Manufacturing325998 | 20-99 | ◐ LIKELY ACTIVE |
| RARaider Advanced Fuels LLC | Charles Town | WV | Chemical Manufacturing325199 | — | ◐ LIKELY ACTIVE |
| RRust-Oleum | Lesage | WV | Chemical Manufacturing325510 | 20-99 | ◐ LIKELY ACTIVE |
| SGSI Group, Inc. - Morgantown | Morgantown | WV | Chemical Manufacturing325199 | 100-499 | ◐ LIKELY ACTIVE |
| SMSOFIE - Morgantown | Morgantown | WV | Chemical Manufacturing325412 | 20-99 | ◐ LIKELY ACTIVE |
| TSTCL Specialties New Martinsville | Proctor | WV | Chemical Manufacturing325199 | 1-19 | ◐ LIKELY ACTIVE |
| TNTeMa North America LLC | Kearneysville | WV | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| UCUnion Carbide Corp | South Charleston | WV | Chemical Manufacturing325199 | 100-499 | ◐ LIKELY ACTIVE |
| UMUS Methanol | Nitro | WV | Chemical Manufacturing325199 | 20-99 | ◐ LIKELY ACTIVE |
| VPViatris (Mylan Pharmaceuticals) - Collins Ferry | Morgantown | WV | Chemical Manufacturing325412 | 100-499 | ◐ LIKELY ACTIVE |
| WWWashington Works | Washington | WV | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| XIXcal Industries, LLC | Oak Hill | WV | Chemical Manufacturing325180 | 20-99 | ◐ LIKELY ACTIVE |
| AUAddivant Usa, LLC | Morgantown | WV | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| ACAdex CORP | Parkersburg | WV | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| AUAirgas Usa, LLC | Bancroft | WV | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| APAir Products & Chemicals INC | Proctor | WV | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| AWAllnex - Willow Island Plant | Willow Island | WV | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| APA&m Products Manufacturing Company | Martinsburg | WV | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| APAstellas Pharma US INC. | Barboursville | WV | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| BMBayer Materialscience LLC | Institute | WV | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| CCCabot Corporation | Waverly | WV | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| CCCabot Corporation, Waverly, Ohio River | Saint Marys | WV | Chemical Manufacturing325182 | — | ◇ UNVERIFIED |
| DRDeltech Resin CO. | New Cumberland | WV | Chemical Manufacturing325188 | — | ◇ UNVERIFIED |
| DMDyna Mix Custom Mixed Rubber | Grafton | WV | Chemical Manufacturing325212 | — | ◇ UNVERIFIED |
| EBEmerald Biofuels, Llc, Institute | Institute | WV | Chemical Manufacturing325110 | — | ◇ UNVERIFIED |
| GCGcm Corporate Location | Petersburg | WV | Chemical Manufacturing325315 | — | ◇ UNVERIFIED |
| HFHollinee Filtration | Reedsville | WV | Chemical Manufacturing325220 | — | ◇ UNVERIFIED |
| IBInterline Brands Dc - Huntington #4960 | Huntington | WV | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| IFInternational Fiber Corporation | Nitro | WV | Chemical Manufacturing325221 | — | ◇ UNVERIFIED |
| JHJDBC Holding Inc | Charles Town | WV | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| LCLanxess CORP - New Martinsville | New Martinsville | WV | Chemical Manufacturing325131 | — | ◇ UNVERIFIED |
| LWLerose Wear Product | Oak Hill | WV | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| MPMarathon Petroleum - Butane Cavern | Kenova | WV | Chemical Manufacturing325110 | — | ◇ UNVERIFIED |
| MPMomentive Performance Materials | Friendly | WV | Chemical Manufacturing325132 | — | ◇ UNVERIFIED |
| MPMomentive Performance Materials USA LLC | Friendly | WV | Chemical Manufacturing325132 | — | ◇ UNVERIFIED |
| MPMylan Pharmaceuticals Inc., White Birch Tower 2 | Morgantown | WV | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| PBPoca Blending LLC | Nitro | WV | Chemical Manufacturing325188 | — | ◇ UNVERIFIED |
| PTPvs Technologies -natrium | New Martinsville | WV | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| RVRiver Valley Bio-refinery, Llc, New Martinsville | Natrium | WV | Chemical Manufacturing325110 | — | ◇ UNVERIFIED |
| TATransparent Armor LLC | South Charleston | WV | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| TLTrulieve - Lesage Phase 2 | Lesage | WV | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| WHWashington Homeopathic Products, INC. | Berkeley Springs | WV | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |