| MCMiles Chemical Company, INC. | Arleta | CA | — | ◇ UNVERIFIED |
| MIMinuteman International Multi-clean Div | Shoreview | MN | — | ◇ UNVERIFIED |
| MRModern Recreational Technologies INC (formerly Kop Coat Marine Inc) | Rockaway | NJ | — | ◇ 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 |
| MCMorflex Chemical CO INC | Greensboro | NC | — | ◇ UNVERIFIED |
| MIMorgan INC | Enterprise | AL | — | ◇ UNVERIFIED |
| MHMount Holly West Plant | Mount Holly | NC | — | ◇ UNVERIFIED |
| MIMozel INC | Columbia | IL | — | ◇ 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 |
| NTNanochem Technologies | Elkhart | IN | — | ◇ UNVERIFIED |
| NYNan Ya Plastics Corps | Lake City | SC | — | ◇ UNVERIFIED |
| NCNational Coatings INC | Galesburg | IL | — | ◇ UNVERIFIED |
| NCNational Controls CORP | West Chicago | IL | — | ◇ UNVERIFIED |
| NPNational Polymers INC | Charleroi | PA | — | ◇ UNVERIFIED |
| NBNelson Brothers Specialty Chemicals, LLC | Parrish | AL | — | ◇ UNVERIFIED |
| NPNelson Paint CO of Michigan | Kingsford | MI | — | ◇ UNVERIFIED |
| NNeoresins | Frankfort | IN | — | ◇ UNVERIFIED |
| NBNew Berlin Facility | New Berlin | NY | — | ◇ UNVERIFIED |
| NDNext Diesel | Adrian | MI | — | ◇ UNVERIFIED |
| NCNissan Chemical America Pasadena Plant | Pasadena | TX | — | ◇ UNVERIFIED |
| NNoltex | La Porte | TX | — | ◇ UNVERIFIED |
| NINorac INC | Helena | AR | — | ◇ UNVERIFIED |
| NANorth Amer Hoganas/johnstown Plt | Johnstown | PA | — | ◇ 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 |
| NANpa Automotive Finishes & Films | Cleveland | OH | — | ◇ UNVERIFIED |
| NTNusil Technology | Carpinteria | CA | — | ◇ UNVERIFIED |
| NTNusil Technology | Irving | TX | — | ◇ 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 |
| OBOmg Building Products LLC | Rockford | MN | — | ◇ UNVERIFIED |
| ONOndeo Nalco Energy Services Plant 114 | Odessa | TX | — | ◇ UNVERIFIED |
| OPOpc Polymers LLC | Columbus | OH | — | ◇ UNVERIFIED |
| OPOrange Plant | Orange | TX | — | ◇ UNVERIFIED |
| OROregon Rubber Mills | Corvallis | OR | — | ◇ UNVERIFIED |
| OTOregon Tread Rubber Company | Eugene | OR | — | ◇ 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 |
| OVOxy Vinyls, LP | Pedricktown | NJ | — | ◇ UNVERIFIED |
| OMOzark Materials, LLC | Marion | IN | — | ◇ UNVERIFIED |
| OMOzark Materials, Llc, an Ingevity Company | Childress | TX | — | ◇ UNVERIFIED |
| PMPaint Mfg | Carrollton | TX | — | ◇ UNVERIFIED |
| PIPalmetto Imaging Technology | Winnsboro | SC | — | ◇ UNVERIFIED |
| PPPasadena Pvc Plant | Pasadena | TX | — | ◇ UNVERIFIED |
| PCPaseo Cargill Energy | Kansas City | MO | — | ◇ UNVERIFIED |
| PPemco | Leesburg | AL | — | ◇ UNVERIFIED |
| PPPentair Pool Products Incorporated | Sanford | NC | — | ◇ UNVERIFIED |
| PHPerformance Health | Akron | OH | — | ◇ UNVERIFIED |
| PPPerstorp Polyols, INC. (0448010133) | Toledo | OH | — | ◇ UNVERIFIED |
| PPPet Processors, L.l.c. (0243000165) | Painesville | OH | — | ◇ UNVERIFIED |
| PIPfi INC Paints for Industry | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| PCPiedmont Chemical Industries I, LLC | High Point | NC | — | ◇ UNVERIFIED |
| PWPlaskolite West Incorporated | Compton | CA | — | ◇ UNVERIFIED |
| PIPlasti-dip International | Blaine | MN | — | ◇ UNVERIFIED |
| PMPlumley Marugo Limited | Paris | TN | — | ◇ UNVERIFIED |
| PIPolychemie INC | Los Angeles | CA | — | ◇ UNVERIFIED |
| PPPolycoat Products LLC | Bedford | TX | — | ◇ UNVERIFIED |
| PPPolycoat Products LLC | Arlington | TX | — | ◇ UNVERIFIED |
| PAPolymer Additives - Cleveland Plant | Cleveland | OH | — | ◇ UNVERIFIED |
| PCPolymer Chemistry Chocolate Bayou LLC | Alvin | TX | — | ◇ UNVERIFIED |
| PCPolynt Composites USA INC | Orlando | FL | — | ◇ UNVERIFIED |
| PCPolynt Composites Usa, INC. | Ennis | TX | — | ◇ UNVERIFIED |
| PCPolynt Composites Usa, INC (0322020129) | Sandusky | OH | — | ◇ UNVERIFIED |
| PCPolynt Composites Usa, INC. - Forest Park | Forest Park | GA | — | ◇ UNVERIFIED |
| PCPolyone Clinton | Clinton | TN | — | ◇ UNVERIFIED |
| POPoly One CORP | Seabrook | TX | — | ◇ UNVERIFIED |
| PCPolyone CORP | Norwalk | OH | — | ◇ UNVERIFIED |
| PCPolyone Corporation | Henry | IL | — | ◇ UNVERIFIED |
| POPoly One Corporation-st. Louis | Saint Louis | MO | — | ◇ UNVERIFIED |
| PIPolyquest INC | Darlington | SC | — | ◇ UNVERIFIED |
| PIPolysource, INC. | Piqua | OH | — | ◇ UNVERIFIED |
| PLPolystar, LLC | Dalton | GA | — | ◇ UNVERIFIED |
 Polytek Development CORP. | Franklin | IN | — | ◇ UNVERIFIED |
| PLPolyventive, LLC | Calhoun | GA | — | ◇ UNVERIFIED |
| PLPolyventive, LLC | Dalton | GA | — | ◇ UNVERIFIED |
| PIPorce-len, INC | Hamden | CT | — | ◇ UNVERIFIED |
| PNPort Neches Terminal | Port Neches | TX | — | ◇ UNVERIFIED |
| POPosco (printers Oil Supply Co) | Wilmington | MA | — | ◇ UNVERIFIED |
| PAPostle Aluminum (p0448) | Cassopolis | MI | — | ◇ UNVERIFIED |
 Ppg Architectural Finishes, INC. | Huron | OH | — | ◇ UNVERIFIED |
| PIPpg Idustries INC. Tx | Gainesville | TX | — | ◇ UNVERIFIED |
| PIPpg Ind Inc/springdale | Springdale | PA | — | ◇ UNVERIFIED |
