| CCCcp Composites US | Houston | TX | — | ◇ UNVERIFIED |
| CLCelanese LTD | Calvert City | KY | — | ◇ UNVERIFIED |
| CTCentauri Technologies | Pasadena | TX | — | ◇ UNVERIFIED |
| CFChem Fleur Division of Firmenich | Newark | NJ | — | ◇ UNVERIFIED |
| CRChemical Research & Technology | Valdosta | GA | — | ◇ UNVERIFIED |
| CIChemline Inc-st. Louis | Saint Louis | MO | — | ◇ UNVERIFIED |
| CCChemol Company, INC. | Greensboro | NC | — | ◇ UNVERIFIED |
| CCChemtura CORP | Bay Minette | AL | — | ◇ UNVERIFIED |
| CCChemtura Corporation | Gastonia | NC | — | ◇ UNVERIFIED |
 Chevron Phillips Chemical Company LP - Cedar Bayou | Baytown | TX | — | ◇ UNVERIFIED |
| CCChroma Color Corporation | Salisbury | NC | — | ◇ UNVERIFIED |
| CCClear Cote CORP | Saint Petersburg | FL | — | ◇ UNVERIFIED |
| CSClock Spring | Houston | TX | — | ◇ UNVERIFIED |
| CACoatings & Adhesives CORP | Leland | NC | — | ◇ UNVERIFIED |
| CCCognis Corporation/mauldin, Sc Manufacturing Plant | Mauldin | SC | — | ◇ UNVERIFIED |
| CUCoim USA | Paulsboro | NJ | — | ◇ UNVERIFIED |
| CPColorite Plastics CO | Ridgefield | NJ | — | ◇ UNVERIFIED |
| CICommerce Indl Chemicals INC | Milwaukee | WI | — | ◇ UNVERIFIED |
| CRContinental Refining CO LLC | Somerset | KY | — | ◇ UNVERIFIED |
| CCCook Composites & Polymers CO | Marshall | TX | — | ◇ UNVERIFIED |
| CFCorteva Freeport Operations | Freeport | TX | — | ◇ UNVERIFIED |
| CCCovestro Coating Resins, INC. | Augusta | GA | — | ◇ UNVERIFIED |
| CHCp Hall Co, the | Stow | OH | — | ◇ UNVERIFIED |
| CICreanova INC | Theodore | AL | — | ◇ UNVERIFIED |
| CFCrest Foam Industries INC | Moonachie | NJ | — | ◇ UNVERIFIED |
| CICroda, INC. Atlas Point Plant Site | New Castle | DE | — | ◇ UNVERIFIED |
| CCCustom Composites LLC | Oklahoma City | OK | — | ◇ UNVERIFIED |
| CECutting Edge Abrasive | Kentwood | MI | — | ◇ UNVERIFIED |
| CLCymer LLC | Decatur | TN | — | ◇ UNVERIFIED |
| CICytec Industries | Kalamazoo | MI | — | ◇ UNVERIFIED |
| COCytec Olean INC | Olean | NY | — | ◇ UNVERIFIED |
| CSCytec Surface Specialties | Langley | SC | — | ◇ UNVERIFIED |
| DADak Americas LLC | Moncks Corner | SC | — | ◇ UNVERIFIED |
| DADak Americas LLC | Fayetteville | NC | — | ◇ UNVERIFIED |
| DTDanchem Technologies INC | Danville | VA | — | ◇ UNVERIFIED |
| DUDanisco US INC | Cedar Rapids | IA | — | ◇ UNVERIFIED |
| DPDap Products, INC. - Pacific Facility | Pacific | MO | — | ◇ UNVERIFIED |
| DCDart Container CORP of Pennsylvania | Leola | PA | — | ◇ UNVERIFIED |
| DSDdp Specialty Electronic Materials US 5, LLC (0868090072) | West Alexandria | OH | — | ◇ UNVERIFIED |
| DSDdp Specialty Electronic Materials US INC | Channahon | IL | — | ◇ UNVERIFIED |
| DIDegussa Initiators INC | Elyria | OH | — | ◇ UNVERIFIED |
| DRDelaware River Plant | Bridgeport | NJ | — | ◇ UNVERIFIED |
| DRDelek Renewables LLC | Cleburne | TX | — | ◇ UNVERIFIED |
| DFDelta Faucet of Oklahoma | Chickasha | OK | — | ◇ UNVERIFIED |
| DPDeltech Polymers | Troy | OH | — | ◇ UNVERIFIED |
| DMDesigner Molecules, INC. | San Diego | CA | — | ◇ UNVERIFIED |
| DIDharmacon, INC. - 2650 Crescent Dr | Lafayette | CO | — | ◇ UNVERIFIED |
| DGDiamond Green Diesel | Port Arthur | TX | — | ◇ UNVERIFIED |
| DADianal America Incorporated | Pasadena | TX | — | ◇ UNVERIFIED |
| DCDow Chemical CO | Bristol | PA | — | ◇ UNVERIFIED |
