| CCCabot Corporation - Carrollton Plant | Carrollton | KY | — | ◇ UNVERIFIED |
 Calgon Carbon Corporation | Stockton | CA | — | ◇ UNVERIFIED |
| Calgon Carbon Corporation | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| CACalifornia Ammonia Company | Grimes | CA | — | ◇ UNVERIFIED |
| CSCalifornia Safe Soil LLC | Mcclellan | CA | — | ◇ UNVERIFIED |
| CSCalifornia Sulphur CO | Wilmington | CA | — | ◇ UNVERIFIED |
| CCallery | Evans City | PA | — | ◇ UNVERIFIED |
| CBCarbon Black Division | Aransas Pass | TX | — | ◇ UNVERIFIED |
| CBCarbon Black Plant | Sunray | TX | — | ◇ UNVERIFIED |
| CCCaribbean Chemical Industries CORP. | Penuelas | PR | — | ◇ UNVERIFIED |
| CSCarlin Sodium Cyanide Terminal | Carlin | NV | — | ◇ UNVERIFIED |
| CNCarlsbad No0247 | Carlsbad | NM | — | ◇ UNVERIFIED |
| CFCarper Farm Supply INC. | Ashley | IN | — | ◇ UNVERIFIED |
| CWCary/apex Water Treatment Plant, Town of Cary | Apex | NC | — | ◇ UNVERIFIED |
| CMCcd Mvr Project, LLC | Fair Oaks | IN | — | ◇ UNVERIFIED |
| CCCci Chemical | Vernon | CA | — | ◇ UNVERIFIED |
| CACdti Advanced Materials, INC. | Oxnard | CA | — | ◇ UNVERIFIED |
| CEC E D Enterprises INC | Gore | VA | — | ◇ UNVERIFIED |
| CCCentral Carbide LLC / Central Carbide LLC | Pryor | OK | — | ◇ UNVERIFIED |
| CMCentral Mn Renewables | Little Falls | MN | — | ◇ UNVERIFIED |
| CVCentral Valley Ag | Fremont | NE | — | ◇ UNVERIFIED |
| CVCentral Valley Ag | Fremont | NE | — | ◇ UNVERIFIED |
| CCCeramic Color & Chemical Manufacturer | Sewickley | PA | — | ◇ UNVERIFIED |
| CCCeramic Color & Chemical Manufacturing Company, INC. | New Brighton | PA | — | ◇ UNVERIFIED |
| CCCeramic Color & Chem Mfg CO Plt | New Brighton | PA | — | ◇ UNVERIFIED |
| CICf Industries Nitrogen, LLC | Donaldsonville | LA | — | ◇ UNVERIFIED |
| CCChannel Chemical Corporation | Gulfport | MS | — | ◇ UNVERIFIED |
| C3Chem 32 | West Orange | TX | — | ◇ UNVERIFIED |
| CChematron | Charlotte | NC | — | ◇ UNVERIFIED |
| CUChemetall US INC | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| CCChemex Chemicals INC | Bakersfield | CA | — | ◇ UNVERIFIED |
| CFChemical Formulators INC | Tampa | FL | — | ◇ UNVERIFIED |
| CMChemical & Metal Industries INC | Denver | CO | — | ◇ UNVERIFIED |
| CMChemical Mfg Faclty | Catoosa | OK | — | ◇ UNVERIFIED |
| CSChemical Specialties Incorporated | Valdosta | GA | — | ◇ UNVERIFIED |
| CNChemours - Niagara Plant | Niagara Falls | NY | — | ◇ UNVERIFIED |
| CHChemtrade Holdco US INC | Covington | VA | — | ◇ UNVERIFIED |
| CLChemtrade Logistics (us) INC. | Augusta | GA | — | ◇ UNVERIFIED |
| CPChemtrade Performance Chemicals US LLC | Kalama | WA | — | ◇ UNVERIFIED |
| CSChemtrade Solutions | Odem | TX | — | ◇ UNVERIFIED |
| CSChemtrade Solutions | Linden | NJ | — | ◇ UNVERIFIED |
| CSChemtrade Solutions INC. | Denver | CO | — | ◇ UNVERIFIED |
| CSChemtrade Solutions, LLC | Jakin | GA | — | ◇ UNVERIFIED |
| CSChemtrade Solutions LLC (f.k.a. Reheis Inc.) | Berkeley Heights | NJ | — | ◇ UNVERIFIED |
| CSChemtrade Solutions LLC - Hopewell | Hopewell | VA | — | ◇ UNVERIFIED |
| CSChemtrade Solutions LLC - Pine Bluff | Pine Bluff | AR | — | ◇ UNVERIFIED |
| CSChemtrade Solutions LLC - Port St. Joe | Port Saint Joe | FL | — | ◇ UNVERIFIED |
| CSChemtrade Solutions, LLC - Tampa | Tampa | FL | — | ◇ UNVERIFIED |
| CSChemtrade Solutions LLC Vancouver | Vancouver | WA | — | ◇ UNVERIFIED |
| CSChemtrade Solutions Site | Kennewick | WA | — | ◇ UNVERIFIED |
