| HLHexion La Grande Site | Island City | OR | — | ◇ UNVERIFIED |
| HSHexion Specialty Chemicals, INC. | Lynwood | CA | — | ◇ UNVERIFIED |
| HMHFC Manufacturing, inc. | Lancaster | CA | — | ◇ UNVERIFIED |
| HAHgm Automotive Electronics INC | Torrance | CA | — | ◇ UNVERIFIED |
| HCHigh Country Plastics, INC. | Caldwell | ID | — | ◇ UNVERIFIED |
| HSHigh Sierra Corp | Chippewa Falls | WI | — | ◇ UNVERIFIED |
| HPHilex Poly LLC | Henrico | VA | — | ◇ UNVERIFIED |
| HUHirsch USA INC. | Peachtree City | GA | — | ◇ UNVERIFIED |
| HRHi-tech Recycling | Redding | CA | — | ◇ UNVERIFIED |
| HRHk Research Corporation | Hickory | NC | — | ◇ UNVERIFIED |
| HPHMG Properties LLC | Lake Mills | WI | — | ◇ UNVERIFIED |
| HCHoechst Celanese Chemical INC | Houston | TX | — | ◇ UNVERIFIED |
| HPHoffman Plastic Compounds INC | Paramount | CA | — | ◇ UNVERIFIED |
| HEHoneywell El Segundo Erd Treatment System | Manhattan Beach | CA | — | ◇ UNVERIFIED |
| HFHoneywell Frankford | Philadelphia | PA | — | ◇ UNVERIFIED |
| HIHoneywell INC | Chester | VA | — | ◇ UNVERIFIED |
| HIHoneywell International INC | Portland | OR | — | ◇ UNVERIFIED |
| HIHoneywell International INC | El Segundo | CA | — | ◇ UNVERIFIED |
| HIHoneywell International INC | Hopewell | VA | — | ◇ UNVERIFIED |
| HOHoneywell Offsite Wells: Manhattan Country Club | Manhattan Beach | CA | — | ◇ UNVERIFIED |
| HOHoneywell Offsite Wells Oak Avenue | Manhattan Beach | CA | — | ◇ UNVERIFIED |
| HNHot N Glassy INC | Carson | CA | — | ◇ UNVERIFIED |
| H7Hrs - 780 Montague | San Jose | CA | — | ◇ UNVERIFIED |
| HPHuey P Stockstill Llc, Picayune Ready Mix and Asphalt Plant | Picayune | MS | — | ◇ UNVERIFIED |
| HJHugh J Resins CO INC | Long Beach | CA | — | ◇ UNVERIFIED |
| HDHuish Detergents | Pasadena | TX | — | ◇ UNVERIFIED |
| HFHuntington Foam | Coraopolis | PA | — | ◇ UNVERIFIED |
| HHuntsman | Ringwood | IL | — | ◇ UNVERIFIED |
| HHuntsman | Corona | CA | — | ◇ UNVERIFIED |
| HHuntsman | Carson | CA | — | ◇ UNVERIFIED |
 Huntsman Advanced Materials Americas, Ll | Los Angeles | CA | — | ◇ UNVERIFIED |
| HAHuntsman Advanced Materials, LLC | Salt Lake City | UT | — | ◇ UNVERIFIED |
| HAHuntsman Advanced Materials - Mcintosh Plant | Mc Intosh | AL | — | ◇ UNVERIFIED |
| HCHuntsman @ Composites One | Salt Lake City | UT | — | ◇ UNVERIFIED |
| HCHuntsman Corporation | Ontario | CA | — | ◇ UNVERIFIED |
| Huntsman International | Stockton | CA | — | ◇ UNVERIFIED |
| Huntsman International - Lohnpack Site | Hamilton | NJ | — | ◇ UNVERIFIED |
| HPHuntsman Petrochemical Dayton Plant | Dayton | TX | — | ◇ UNVERIFIED |
| HTHuntsman - Total Distribution Warehouse | Charlotte | NC | — | ◇ UNVERIFIED |
| IAIcl-ip America, INC. | Belmont | NC | — | ◇ UNVERIFIED |
| ILIconic Labs LLC | Westlake | OH | — | ◇ UNVERIFIED |
| ISI.C. Scientific Solutions | Westlake | OH | — | ◇ UNVERIFIED |
| IWImperial Western Products CO INC | Coachella | CA | — | ◇ UNVERIFIED |
| ILImpreg, LLC | Richmond | VA | — | ◇ UNVERIFIED |
| IBIndependence Biodiesel, LLC | Hyde Park | MA | — | ◇ UNVERIFIED |
| IVIndorama Venture Sustainable Solutions Fontana INC | Fontana | CA | — | ◇ UNVERIFIED |
| ICIndustrial Chemical Company | Wakefield | MA | — | ◇ UNVERIFIED |
| IPIndustrial Plastic Supply | Anaheim | CA | — | ◇ UNVERIFIED |
| IRIndustrial Resin Recycling | Whitmore Lake | MI | — | ◇ UNVERIFIED |
| IRIndustrial Resin Recycling INC | Howell | MI | — | ◇ UNVERIFIED |
