| BCBulk Chemicals, INC. | Blandon | PA | — | ◇ UNVERIFIED |
| BCBulk Chemicals, INC. | Shoemakersville | PA | — | ◇ UNVERIFIED |
| CNC3 Nano INC | Hayward | CA | — | ◇ UNVERIFIED |
| CCCabot CORP Pampa Plant | Pampa | TX | — | ◇ UNVERIFIED |
| CMCabot Microelectronics CORP | Aurora | IL | — | ◇ UNVERIFIED |
 Calgon Carbon Corporation | Blue Lake | CA | — | ◇ UNVERIFIED |
| CCCalgon Corporation Sub Merck and CO | Pasadena | TX | — | ◇ UNVERIFIED |
| CMCambridge Major Laboratories | Germantown | WI | — | ◇ UNVERIFIED |
| CCCandy & CO | Chicago | IL | — | ◇ UNVERIFIED |
| CICantol INC | Philadelphia | PA | — | ◇ UNVERIFIED |
| CCarbolabs | Bethany | CT | — | ◇ UNVERIFIED |
| CCCarbonfree Chemicals | San Antonio | TX | — | ◇ UNVERIFIED |
| CCCardolite CORP | Newark | NJ | — | ◇ UNVERIFIED |
| CCCar-freshner Corporation | De Witt | IA | — | ◇ UNVERIFIED |
| CCCayman Chemical CO | State College | PA | — | ◇ UNVERIFIED |
| CPCci Port Nickel LLC - Port Nickel | Braithwaite | LA | — | ◇ UNVERIFIED |
| CDCei - Douglassville INC | Douglassville | PA | — | ◇ UNVERIFIED |
| CACelanese Acetate LLC Celriver Plant | Rock Hill | SC | — | ◇ UNVERIFIED |
| CLCelanese Limited | Corpus Christi | TX | — | ◇ UNVERIFIED |
| CLCelanese LTD | Pampa | TX | — | ◇ UNVERIFIED |
| CCCentral Carbide LLC / Central Carbide LLC | Pryor | OK | — | ◇ UNVERIFIED |
| CMCentral Mn Renewables | Little Falls | MN | — | ◇ UNVERIFIED |
| CJCf Jameson | Haverhill | MA | — | ◇ UNVERIFIED |
| CCChampion Chemical CO | Whittier | CA | — | ◇ UNVERIFIED |
| CBChata Biosystems LLC a Part of Boval CO LP | Loveland | CO | — | ◇ UNVERIFIED |
| C3Chem 32 | West Orange | TX | — | ◇ UNVERIFIED |
| CCChem Chrome INC | Schofield | WI | — | ◇ UNVERIFIED |
| CUChemetall Us, INC. | Romulus | MI | — | ◇ UNVERIFIED |
| CFChemical Formulators INC | Tampa | FL | — | ◇ UNVERIFIED |
| CMChemical & Metal Industries INC | Denver | CO | — | ◇ UNVERIFIED |
| CSChemical Specialists & Development INC | Baton Rouge | LA | — | ◇ UNVERIFIED |
| CSChemical Specialties INC | Freeport | TX | — | ◇ UNVERIFIED |
| CIChemique INC | Moorestown | NJ | — | ◇ UNVERIFIED |
| CNChemours - Niagara Plant | Niagara Falls | NY | — | ◇ UNVERIFIED |
| CPChemtrade Performance Chemicals US LLC | Kalama | WA | — | ◇ UNVERIFIED |
| CRChemtrade Refinery Sercives INC | Shreveport | LA | — | ◇ UNVERIFIED |
| CSChemtrade Solutions | Linden | NJ | — | ◇ UNVERIFIED |
| CSChemtrade Solutions LLC - Port St. Joe | Port Saint Joe | FL | — | ◇ UNVERIFIED |
| CSChemtrade Solutions LLC Vancouver | Vancouver | WA | — | ◇ UNVERIFIED |
| CSChemtrade Solutions- Toledo Water | Toledo | OH | — | ◇ UNVERIFIED |
| CCChemtura CORP - Gonzales H M & Bailey Property Aka Spedale Landfill | Gonzales | LA | — | ◇ UNVERIFIED |
| CGCiba Geigy Plant - 205 South James St, Newport | Newport | DE | — | ◇ UNVERIFIED |
| CSCindys Signature Clnr & Tailors/abington | Roslyn | PA | — | ◇ UNVERIFIED |
| CECk Enterprises | Lees Summit | MO | — | ◇ UNVERIFIED |
| CCClariant CORP Kion Facility | Huntingdon Valley | PA | — | ◇ UNVERIFIED |
| CFClean Fuel Lakeland, LLC | Lakeland | FL | — | ◇ UNVERIFIED |
| CHClestra Hauserman INC. Div. of Steelcase | Solon | OH | — | ◇ UNVERIFIED |
| CMClorox Manufacturing Company | Aberdeen | MD | — | ◇ UNVERIFIED |
| CPClorox Prods Mfg CO | Tampa | FL | — | ◇ UNVERIFIED |
| CPClorox Product Manufacturing CO. | Cleveland | OH | — | ◇ UNVERIFIED |
