| NCNalco Chemical Company | Bedford Park | IL | — | ◇ 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 |
| NTNanophase Technologies CORP | Romeoville | IL | — | ◇ UNVERIFIED |
| NCNapco Chemical Co., INC. | Spring | TX | — | ◇ UNVERIFIED |
| NTNeches Terminal / Neches West | Beaumont | TX | — | ◇ UNVERIFIED |
| NBNexpera Burnside Plant | Darrow | LA | — | ◇ UNVERIFIED |
| NDNext Diesel | Adrian | MI | — | ◇ UNVERIFIED |
| NCNissan Chemical America Pasadena Plant | Pasadena | TX | — | ◇ UNVERIFIED |
| NINorac INC | Helena | AR | — | ◇ UNVERIFIED |
| NANoranda Alumina LLC | Gramercy | LA | — | ◇ UNVERIFIED |
| NINorth Industrial Chemicals INC | York | PA | — | ◇ UNVERIFIED |
| NFNouryon Functional Chemicals LLC Battleground | La Porte | TX | — | ◇ UNVERIFIED |
| NRNova Recovery Oz Holdings, LLC | Sumter | SC | — | ◇ UNVERIFIED |
| NLNovastar LP | Midland | TX | — | ◇ UNVERIFIED |
| NNNovo Nordisk Biochem North America, INC. | Franklinton | NC | — | ◇ UNVERIFIED |
| NUNutriag USA LTD | Biola | CA | — | ◇ UNVERIFIED |
| NANutrien Aurora Facility | Aurora | NC | — | ◇ UNVERIFIED |
| NBNutrition & Biosciences USA 1 LLC - Plaquemine Methocel | Plaquemine | LA | — | ◇ UNVERIFIED |
| NNNyacol Nano Technologies | Ashland | MA | — | ◇ UNVERIFIED |
| OPOak Point Plant | Belle Chasse | LA | — | ◇ UNVERIFIED |
| OCOccidental Chemical CORP - Luling | Luling | LA | — | ◇ UNVERIFIED |
| OCOccidental Chemical Corporation | Convent | LA | — | ◇ UNVERIFIED |
| OCOccidental Chemical Corporation Ashtabula Plant | Ashtabula | OH | — | ◇ UNVERIFIED |
| OCOccidental Chemical Corporation - Geismar Facility | Geismar | LA | — | ◇ UNVERIFIED |
| OCOccidental Chemical Corporation Oxychem | New Johnsonville | TN | — | ◇ UNVERIFIED |
| OCOccidental Chemical CORP Sauget Plant | Sauget | IL | — | ◇ UNVERIFIED |
| OCOccidental Chemical CORP - Taft Plant | Hahnville | LA | — | ◇ UNVERIFIED |
| OBOld Bridge Chemiacls INC | Old Bridge | NJ | — | ◇ UNVERIFIED |
| OCOlin Chlor Alkali Products | Niagara Falls | NY | — | ◇ UNVERIFIED |
| OOOmni Oxide Indiana Oxide | Brazil | IN | — | ◇ UNVERIFIED |
| ONOndeo Nalco Energy Services Plant 114 | Odessa | TX | — | ◇ UNVERIFIED |
| OPOxiteno Pasadena Plant | Pasadena | TX | — | ◇ UNVERIFIED |
| OPOxy Permian - Willard Separation Plant | Denver City | TX | — | ◇ UNVERIFIED |
| PGPaducah Gaseous Diffusion Plant | Paducah | KY | — | ◇ UNVERIFIED |
| PCPalm Commodities International | La Vergne | TN | — | ◇ UNVERIFIED |
| PCPaseo Cargill Energy | Kansas City | MO | — | ◇ UNVERIFIED |
| PNPcs Nitrogen Fertilizer, L.p. Augusta Georgia | Augusta | GA | — | ◇ UNVERIFIED |
| PNPcs Nitrogen Fertilizer LP - Geismar Agricultural Nitrogen & Phosphate Plant | Geismar | LA | — | ◇ UNVERIFIED |
| PSPeach State Labs, LLC | Rome | GA | — | ◇ UNVERIFIED |
| PCPeninsula Copper Industries INC | Hubbell | MI | — | ◇ UNVERIFIED |
| PPPerstorp Polyols, INC. (0448010133) | Toledo | OH | — | ◇ UNVERIFIED |
| PMPeterson Manufacturing and Engineering Facility | Fort Smith | AR | — | ◇ UNVERIFIED |
| PCPiedmont Chemical Industries I, LLC | High Point | NC | — | ◇ UNVERIFIED |
| PAPioneer Americas LLC D/b/a/ Olin Chlor Alkali | Saint Gabriel | LA | — | ◇ UNVERIFIED |
| PAPioneer Americas LLC Dba Olin Chlor Alkali Products | Henderson | NV | — | ◇ UNVERIFIED |
| PAPioneer Americas LLC (dba Olin Chlor Alkali Products Sfs) | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| PFPlant Food Mfg | Cranbury | NJ | — | ◇ UNVERIFIED |
| PAPolymer Additives - Cleveland Plant | Cleveland | OH | — | ◇ UNVERIFIED |
| PLPolystar, LLC | Dalton | GA | — | ◇ UNVERIFIED |
| PLPolyventive, LLC | Calhoun | GA | — | ◇ UNVERIFIED |
| PLPolyventive, LLC | Dalton | GA | — | ◇ UNVERIFIED |
| PNPort Neches Terminal | Port Neches | TX | — | ◇ UNVERIFIED |
| POPosco (printers Oil Supply Co) | Wilmington | MA | — | ◇ UNVERIFIED |
| PPowerlab | Terrell | TX | — | ◇ UNVERIFIED |
| PIPpg Industries - Delaware | Delaware | OH | — | ◇ UNVERIFIED |
| PIPpg Industries INC | La Porte | TX | — | ◇ UNVERIFIED |
| PSPraxair Specialty Ceramics | Woodinville | WA | — | ◇ UNVERIFIED |
| PCPressure Chem Co/pgh | Pittsburgh | PA | — | ◇ UNVERIFIED |
| PMPrince Minerals LLC | Milwaukee | WI | — | ◇ UNVERIFIED |
| PCPryor Chem CO | Pryor | OK | — | ◇ UNVERIFIED |
| PCPssi Chemical Innovations | Kieler | WI | — | ◇ UNVERIFIED |
| PTPurification Techs INC | Chester | CT | — | ◇ UNVERIFIED |
| PCPvs Chemical, INC. | Chicago | IL | — | ◇ UNVERIFIED |
| PCPvs Chemicals Formerly Dpc Enterprises, L.p. | Mobile | AL | — | ◇ UNVERIFIED |
| PSPvs Steel Services INC | Burns Harbor | IN | — | ◇ UNVERIFIED |
| PTPvs Tech INC | Detroit | MI | — | ◇ UNVERIFIED |
| PTPvs Technologies, INC. (augusta) | Augusta | GA | — | ◇ UNVERIFIED |
| RARadford Army Ammunition Plant | Radford | VA | — | ◇ UNVERIFIED |
| RAReg - Albert Lea | Albert Lea | MN | — | ◇ UNVERIFIED |
| RDReg Danville LLC | Danville | IL | — | ◇ UNVERIFIED |
| RGReg Grays Harbor, LLC | Hoquiam | WA | — | ◇ UNVERIFIED |
| RNReg Newton, LLC | Newton | IA | — | ◇ UNVERIFIED |
| RBRenewable Bio Fuels | Port Neches | TX | — | ◇ UNVERIFIED |
| RERentech Energy Midwest CORP | East Dubuque | IL | — | ◇ UNVERIFIED |
| ROResearch Organics LLC Dba Safc (1318172081) | Cuyahoga Heights | OH | — | ◇ UNVERIFIED |
| RSResearch Solvents & Chemicals INC | La Vergne | TN | — | ◇ UNVERIFIED |
| RSResin Solutions, LLC | Chatom | AL | — | ◇ UNVERIFIED |
| RSResin Solutions, LLC | Stratford | CT | — | ◇ UNVERIFIED |
| RCRho Chemicals CO | Joliet | IL | — | ◇ UNVERIFIED |
| RIRhodia INC. - Dominguez Plant | Carson | CA | — | ◇ UNVERIFIED |
| RJR J Marshall CO | Erie | MI | — | ◇ UNVERIFIED |
 Rochester Midland CORP | Montgomery | IL | — | ◇ UNVERIFIED |
| RLRockwood Lithium INC | Silverpeak | NV | — | ◇ UNVERIFIED |
| RLRockwood Lithium INC | Kings Mountain | NC | — | ◇ UNVERIFIED |
| RARohm and Haas Texas Incorporated | Deer Park | TX | — | ◇ UNVERIFIED |
| RURohmax USA LP | Deer Park | TX | — | ◇ UNVERIFIED |
| RGRousselot Gelatine | Peabody | MA | — | ◇ UNVERIFIED |
| RMRoyal Metal Powders, INC. | Maryville | TN | — | ◇ UNVERIFIED |
| RIRsymrise INC | Brunswick | GA | — | ◇ UNVERIFIED |
| RLRuveon LLC | Soda Springs | ID | — | ◇ UNVERIFIED |
| SISachem INC | Cleburne | TX | — | ◇ UNVERIFIED |
| SCSachs Chemical, INC. | Caguas | PR | — | ◇ UNVERIFIED |
| SDScientific Design CO INC | Little Ferry | NJ | — | ◇ UNVERIFIED |
| SISeeler Industries INC | Joliet | IL | — | ◇ UNVERIFIED |
| SGSeparations Group Grace Vydac | Hesperia | CA | — | ◇ UNVERIFIED |
| STSe Tylose USA INC. and Its Affiliates | Plaquemine | LA | — | ◇ UNVERIFIED |
| SEShaw El Dorado, LLC | El Dorado | AR | — | ◇ UNVERIFIED |
