| MCMetal Chem INC | Greenville | SC | — | ◇ UNVERIFIED |
| MPMgc Pure Chemicals America, INC | Killeen | TX | — | ◇ UNVERIFIED |
| MRMidland Resources INC | Saint Louis | MO | — | ◇ UNVERIFIED |
| MPMoc Products Company INC | Pacoima | CA | — | ◇ UNVERIFIED |
| MSMomentive Specialty Chemicals INC | Norco | LA | — | ◇ UNVERIFIED |
| MOMonolith Olive Creek 1 | Hallam | NE | — | ◇ UNVERIFIED |
| MFMosaic Fertilizer, LLC -bartow | Bartow | FL | — | ◇ UNVERIFIED |
| MFMpc - Fairborn | Fairborn | OH | — | ◇ UNVERIFIED |
| NCNalco Chemical Company | Bedford Park | IL | — | ◇ 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 |
| NANoranda Alumina LLC | Gramercy | LA | — | ◇ UNVERIFIED |
| NINorth Industrial Chemicals INC | York | PA | — | ◇ UNVERIFIED |
| NFNouryon Functional Chemicals LLC Battleground | La Porte | TX | — | ◇ UNVERIFIED |
| NANutrien Aurora Facility | Aurora | NC | — | ◇ UNVERIFIED |
| NNNyacol Nano Technologies | Ashland | MA | — | ◇ 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 - 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 |
| OPOxy Permian - Willard Separation Plant | Denver City | TX | — | ◇ UNVERIFIED |
| PGPaducah Gaseous Diffusion Plant | Paducah | KY | — | ◇ UNVERIFIED |
| PCPalm Commodities International | La Vergne | TN | — | ◇ 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 |
| PMPeterson Manufacturing and Engineering Facility | Fort Smith | AR | — | ◇ 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 |
| PPowerlab | Terrell | TX | — | ◇ UNVERIFIED |
| PSPraxair Specialty Ceramics | Woodinville | WA | — | ◇ UNVERIFIED |
| PMPrince Minerals LLC | Milwaukee | WI | — | ◇ 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 |
| RERentech Energy Midwest CORP | East Dubuque | IL | — | ◇ UNVERIFIED |
| RSResin Solutions, LLC | Chatom | AL | — | ◇ UNVERIFIED |
| RIRhodia INC. - Dominguez Plant | Carson | CA | — | ◇ UNVERIFIED |
