| HTHaldor Topsoe INC | Pasadena | TX | — | ◇ UNVERIFIED |
| HDHalox Division of Icl Specialty Products INC | Hammond | IN | — | ◇ UNVERIFIED |
| HCHarcros Chemicals INC | Dalton | GA | — | ◇ UNVERIFIED |
| HIHawkins INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| HIHawkins, INC. - Memphis | Memphis | TN | — | ◇ UNVERIFIED |
| HIHawkins Industrial Group - Centralia | Centralia | IL | — | ◇ UNVERIFIED |
| HPHawkins Pine Bend | Rosemount | MN | — | ◇ UNVERIFIED |
| HFHb Fuller CO | Morris | IL | — | ◇ UNVERIFIED |
| HCHenkel Corporation | Olean | NY | — | ◇ UNVERIFIED |
| HUHenkel US Operations Corporation | Salisbury | NC | — | ◇ UNVERIFIED |
| HTHeritage Technologies LLC Micronutrients Div | Indianapolis | IN | — | ◇ UNVERIFIED |
| HCHexcel Corporation: Salt Lake Operations | West Valley City | UT | — | ◇ UNVERIFIED |
| HIHexion INC. | Lakeland | FL | — | ◇ UNVERIFIED |
| HIHexion INC. - Missoula | Missoula | MT | — | ◇ UNVERIFIED |
| HBHill Brothers Chemical CO | Phoenix | AZ | — | ◇ UNVERIFIED |
| HBHill Brothers Chemical CO. | San Jose | CA | — | ◇ UNVERIFIED |
| HJH J Baker Bro INC | Wilmington | CA | — | ◇ UNVERIFIED |
| HJH J Baker & Bros INC | Stockton | CA | — | ◇ UNVERIFIED |
| HCHolland Company | Adams | MA | — | ◇ UNVERIFIED |
| HIHoneywell International Incorporated | Sparta | TN | — | ◇ UNVERIFIED |
| HSHoneywell Specialty Materials | Columbia | MO | — | ◇ UNVERIFIED |
 Huntsman Advanced Materials Americas INC | Mc Intosh | AL | — | ◇ UNVERIFIED |
| Huntsman Advanced Materials Americas, LLC. | East Lansing | MI | — | ◇ UNVERIFIED |
| HAHuntsman Advance Materials, LLC | Harrison City | PA | — | ◇ UNVERIFIED |
| HCHydrite Chemical CO | La Crosse | WI | — | ◇ UNVERIFIED |
| HCHydrite Chemical CO | Oshkosh | WI | — | ◇ UNVERIFIED |
| HCHydrite Chemical CO | Milwaukee | WI | — | ◇ UNVERIFIED |
| HCHydrite Chemical CO | Waterloo | IA | — | ◇ UNVERIFIED |
| HCHydrite Chemical CO. | Terre Haute | IN | — | ◇ UNVERIFIED |
| HNHyperlast North America | Chattanooga | TN | — | ◇ UNVERIFIED |
| IPIcl Performance Products LP | Lawrence | KS | — | ◇ UNVERIFIED |
| ITIllinois Tool Works, INC. | Clearwater | FL | — | ◇ UNVERIFIED |
| ICInchem Corporation | Rock Hill | SC | — | ◇ UNVERIFIED |
| IAIneos Abs (usa) LLC - Addyston Plant | Addyston | OH | — | ◇ UNVERIFIED |
| ICIneos Composites Us/phila | Philadelphia | PA | — | ◇ UNVERIFIED |
| ISIneos Styrolution America LLC | Channahon | IL | — | ◇ UNVERIFIED |
| IFIntarome Fragrance CORP | Norwood | NJ | — | ◇ UNVERIFIED |
| ICInterplastic CORP - Minneapolis Plant | Minneapolis | MN | — | ◇ UNVERIFIED |
| ICInterplastic Corporation | Fort Wright | KY | — | ◇ UNVERIFIED |
| ICInterplastic CORP - Vadnais Heights Plant | Vadnais Heights | MN | — | ◇ UNVERIFIED |
| ISInvista S.a.r.l. | Lugoff | SC | — | ◇ UNVERIFIED |
| ICIochem Corporation | Vici | OK | — | ◇ UNVERIFIED |
| IIIoditech INC | Kansas City | MO | — | ◇ UNVERIFIED |
| ICIps Corporation - Durham Plant | Durham | NC | — | ◇ UNVERIFIED |
| IIIsotec International | Canton | GA | — | ◇ UNVERIFIED |
| ICIsp Chemicals INC | Huntsville | AL | — | ◇ UNVERIFIED |
| ICI.s.t. (usa) CORP. | Parlin | NJ | — | ◇ UNVERIFIED |
| IItwc | Malcom | IA | — | ◇ UNVERIFIED |
| IPItw Philadelphia Resins | Montgomeryville | PA | — | ◇ UNVERIFIED |
| IPItw Polymers Coatings NA | Houston | TX | — | ◇ UNVERIFIED |
