| MMartech | Midlothian | TX | — | ◇ UNVERIFIED |
| MUMcp Urethanes | Pittsburg | KS | — | ◇ UNVERIFIED |
| M3Mc (us) 3 LLC | Dunbar | WV | — | ◇ UNVERIFIED |
| MOMeglobal Oyster Creek | Freeport | TX | — | ◇ UNVERIFIED |
| MAMetton America La Porte Plant | La Porte | TX | — | ◇ UNVERIFIED |
| MSMexichem Specialty Compounds INC | Leominster | MA | — | ◇ UNVERIFIED |
 Mfg Chemical, INC. - Callahan Plant | Dalton | GA | — | ◇ UNVERIFIED |
| Mfg Chemical Incorporated | Dalton | GA | — | ◇ UNVERIFIED |
| MCMidwest Composites, LLC | Wapakoneta | OH | — | ◇ UNVERIFIED |
| MIMilacron INC Consumable Prods Div | Cincinnati | OH | — | ◇ UNVERIFIED |
| MSMomentive Specialty Chemicals Adhesive & Resin Div | Alexandria | LA | — | ◇ UNVERIFIED |
| MSMomentive Specialty Chemicals INC | Springfield | OR | — | ◇ UNVERIFIED |
| MSMomentive Specialty Chemicals Inc.- Baytown Tx | Baytown | TX | — | ◇ UNVERIFIED |
| MSMomentive Specialty Chemicals INC - Formaldehyde Plant | Geismar | LA | — | ◇ UNVERIFIED |
| MIMona Inds INC | Paterson | NJ | — | ◇ UNVERIFIED |
| MCMorflex Chemical CO INC | Greensboro | NC | — | ◇ UNVERIFIED |
| MIMorgan INC | Enterprise | AL | — | ◇ UNVERIFIED |
| MHMount Holly West Plant | Mount Holly | NC | — | ◇ UNVERIFIED |
| MBMsu Bioeconomy Institute | Holland | MI | — | ◇ UNVERIFIED |
| NINA Industries Pasadena | Seabrook | TX | — | ◇ UNVERIFIED |
| NCNalco CO - Evansville Plant 108 | Evansville | WY | — | ◇ UNVERIFIED |
| NCNalco CO LLC | Carson | CA | — | ◇ UNVERIFIED |
| NCNalco CO Plant 106 | Sugar Land | TX | — | ◇ UNVERIFIED |
| NENalco Exxon Energy Chemical Scott Blend Plant | Scott | LA | — | ◇ UNVERIFIED |
| NYNan Ya Plastics Corps | Lake City | SC | — | ◇ UNVERIFIED |
| NBNelson Brothers Specialty Chemicals, LLC | Parrish | AL | — | ◇ UNVERIFIED |
| NNeoresins | Frankfort | IN | — | ◇ UNVERIFIED |
| NDNext Diesel | Adrian | MI | — | ◇ UNVERIFIED |
| NCNissan Chemical America Pasadena Plant | Pasadena | TX | — | ◇ UNVERIFIED |
| NNoltex | La Porte | TX | — | ◇ UNVERIFIED |
| NINorac INC | Helena | AR | — | ◇ UNVERIFIED |
| NCNovachem Corporation | High Point | NC | — | ◇ UNVERIFIED |
| NCNova Chemicals INC | Painesville | OH | — | ◇ UNVERIFIED |
| NRNova Recovery Oz Holdings, LLC | Sumter | SC | — | ◇ UNVERIFIED |
| NLNovastar LP | Midland | TX | — | ◇ UNVERIFIED |
| NNoveon | Leominster | MA | — | ◇ UNVERIFIED |
| NNNovo Nordisk Biochem North America, INC. | Franklinton | NC | — | ◇ UNVERIFIED |
| NBNutrition & Biosciences USA 1, Llc, Midland | Midland | MI | — | ◇ UNVERIFIED |
| NBNutrition & Biosciences USA 1 LLC - Plaquemine Methocel | Plaquemine | LA | — | ◇ UNVERIFIED |
| OPOak Point Plant | Belle Chasse | LA | — | ◇ UNVERIFIED |
| OCOccidental Chemical CORP Sauget Plant | Sauget | IL | — | ◇ UNVERIFIED |
| O3O-cel-o, 3m Company | Tonawanda | NY | — | ◇ UNVERIFIED |
| OCOklahoma City Site | Yukon | OK | — | ◇ UNVERIFIED |
| ONOndeo Nalco Energy Services Plant 114 | Odessa | TX | — | ◇ UNVERIFIED |
| OPOpc Polymers LLC | Columbus | OH | — | ◇ UNVERIFIED |
| OPOrange Plant | Orange | TX | — | ◇ UNVERIFIED |
| OSOsram Sylvania Products INC. - Warren, Pa | Warren | PA | — | ◇ UNVERIFIED |
| OPOvation Polymers | Medina | OH | — | ◇ UNVERIFIED |
| OSOwensboro Specialty Polymers | Owensboro | KY | — | ◇ UNVERIFIED |
| OPOxiteno Pasadena Plant | Pasadena | TX | — | ◇ UNVERIFIED |
