| PSPerimeter Solutions Burns Seat Base | Burns | OR | — | ◇ UNVERIFIED |
| PSPerimeter Solutions LP | Santa Rosa | CA | — | ◇ UNVERIFIED |
| PSPerimeter Solutions Ontario Seat Base | Ontario Heights | OR | — | ◇ UNVERIFIED |
| PTPeroxychem Tonawanda Plant | Tonawanda | NY | — | ◇ UNVERIFIED |
| PRPeru Recycling Facility | Sparks | NV | — | ◇ UNVERIFIED |
| PCPetra Chemical CO | Dallas | TX | — | ◇ UNVERIFIED |
| P6Phillips 66 Caustic Scrubber Material | New Castle | DE | — | ◇ UNVERIFIED |
| PSPhoto Systems INC | Dexter | MI | — | ◇ UNVERIFIED |
| PLPiedmont Lithium Carolinas, INC. - Kings Moun ** Inactive ** | Kings Mountain | NC | — | ◇ UNVERIFIED |
| PAPioneer Americas INC | Tacoma | WA | — | ◇ UNVERIFIED |
| PAPioneer Americas LLC | Henderson | NV | — | ◇ UNVERIFIED |
| PAPioneer Americas LLC Dba Olin Chlor Alkali Tracy | Tracy | CA | — | ◇ UNVERIFIED |
| PTPlymouth Technology, Inc. | Rochester Hills | MI | — | ◇ UNVERIFIED |
| PIP.m.c., INC. | Calhoun | GA | — | ◇ UNVERIFIED |
| POPmc Organometallix | Axis | AL | — | ◇ UNVERIFIED |
| PIPotters Industries, INC. - Q-cel Facility | Augusta | GA | — | ◇ UNVERIFIED |
| PIPowerlab INC | Winston Salem | NC | — | ◇ UNVERIFIED |
| PIPpg Industries INC - Silica Plant | Westlake | LA | — | ◇ UNVERIFIED |
| PCPq CORP. | Baltimore | MD | — | ◇ UNVERIFIED |
| PCPq Corporation | South Gate | CA | — | ◇ UNVERIFIED |
| PCPq Corporation | Chester | PA | — | ◇ UNVERIFIED |
| PCPq Corporation | Joliet | IL | — | ◇ UNVERIFIED |
| PCPq Corporation - Pineville Plant | Pineville | LA | — | ◇ UNVERIFIED |
| PCPq Corporation - Sodium Silicate Plant | Augusta | GA | — | ◇ UNVERIFIED |
| PCPq Corporation -the | Saint Louis | MO | — | ◇ UNVERIFIED |
| PLPq LLC | Clarksville | IN | — | ◇ UNVERIFIED |
| PEPrecursor Energetics,inc | Santa Clara | CA | — | ◇ UNVERIFIED |
| PIPrism Inks INC | Sunnyvale | CA | — | ◇ UNVERIFIED |
| PFPsg - Functional Materials Phoenix | Calhoun | GA | — | ◇ UNVERIFIED |
| PIPure-chem INC. | Buda | TX | — | ◇ UNVERIFIED |
| PPPuritan Prod | Bethlehem | PA | — | ◇ UNVERIFIED |
| PEPursue Energy Corporation | Brandon | MS | — | ◇ UNVERIFIED |
| PTPvs Technologies,. INC. | Portage | IN | — | ◇ UNVERIFIED |
| PTPvs Technologies -natrium | New Martinsville | WV | — | ◇ UNVERIFIED |
| RCRadiant Color | Richmond | CA | — | ◇ UNVERIFIED |
| RCRavago Chemicals North America | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| RMReade Manufacturing Company | Manchester Twp | NJ | — | ◇ UNVERIFIED |
| RSRemedy Staffing | Avon | NY | — | ◇ UNVERIFIED |
| RARemuriate Arkansas LLC | Osceola | AR | — | ◇ UNVERIFIED |
| RARemuriate Arkansas, LLC (iu) | Osceola | AR | — | ◇ UNVERIFIED |
| RCResponse Catalyst INC | Omaha | NE | — | ◇ UNVERIFIED |
| RMRieke Metals INC | Lincoln | NE | — | ◇ UNVERIFIED |
| RTRist/ama Truck Terminal | North Branford | CT | — | ◇ UNVERIFIED |
| RERohm-haas Electronics Material, LLC | North Andover | MA | — | ◇ UNVERIFIED |
| RRRostam Reifschneider | San Diego | CA | — | ◇ UNVERIFIED |
| RSRuben S Avala High School/cvusd | Chino Hills | CA | — | ◇ UNVERIFIED |
| SGSalt Gen INC | Lindon | UT | — | ◇ UNVERIFIED |
| SCSasol Chem USA Llc/oil City | Oil City | PA | — | ◇ UNVERIFIED |
| SSSavage Services CORP | Chicago | IL | — | ◇ UNVERIFIED |
| SRSavannah River Nuclear Solutions LLC - Savannah River Site | Aiken | SC | — | ◇ UNVERIFIED |
| SDScientific Design CO INC | Little Ferry | NJ | — | ◇ UNVERIFIED |
| SRSentury Reagents INC. | Rock Hill | SC | — | ◇ UNVERIFIED |
| SMSfsu Mashouf Wellness Center | San Francisco | CA | — | ◇ UNVERIFIED |
| SASherwin Alumina Plant | Ingleside | TX | — | ◇ UNVERIFIED |
| SEShoei Electronic Materials INC | Milpitas | CA | — | ◇ UNVERIFIED |
| SCSierra Chemical CO | Sparks | NV | — | ◇ UNVERIFIED |
| SLSkynano, LLC | Louisville | TN | — | ◇ UNVERIFIED |
| SLSkynano, LLC | Knoxville | TN | — | ◇ UNVERIFIED |
| SLSolenis, LLC | Morrilton | AR | — | ◇ UNVERIFIED |
| SISolesence, INC. | West Lafayette | IN | — | ◇ UNVERIFIED |
| STSolexir Technology CORP | Milpitas | CA | — | ◇ UNVERIFIED |
| SESolimar Energy LLC | Placeholder | CA | — | ◇ UNVERIFIED |
| SASolstice Advanced Materials Us, INC. | Baton Rouge | LA | — | ◇ UNVERIFIED |
| SASolstice Advanced Materials Us, INC. Metropolis | Metropolis | IL | — | ◇ UNVERIFIED |
| SISolutia INC | Trenton | MI | — | ◇ UNVERIFIED |
| SCSolvay Chemicals, INC. Parachute Plant | Parachute | CO | — | ◇ UNVERIFIED |
| SHSonia Hoang | Tracy | CA | — | ◇ UNVERIFIED |
 Southern Ionics INC | Chickasaw | AL | — | ◇ UNVERIFIED |
| Southern Ionics INC | Pasadena | TX | — | ◇ UNVERIFIED |
| Southern Ionics INC. - Lake Charles Facility | Carlyss | LA | — | ◇ UNVERIFIED |
| Southern Ionics INC - Lake Charles Port Operations | Lake Charles | LA | — | ◇ UNVERIFIED |
| Southern Ionics Incorporated | Tuscaloosa | AL | — | ◇ UNVERIFIED |
| Southern Ionics Incorporated Tuscaloosa Facility | Tuscaloosa | AL | — | ◇ UNVERIFIED |
 Southern States Chemical | Wilmington | NC | — | ◇ UNVERIFIED |
| STSouth Texas Chlorine, INC. | Harlingen | TX | — | ◇ UNVERIFIED |
| SMSpecialty Minerals INC | Wisconsin Rapids | WI | — | ◇ UNVERIFIED |
| SMSpecialty Minerals INC | Eastover | SC | — | ◇ UNVERIFIED |
| SMSpecialty Minerals INC | Selma | AL | — | ◇ UNVERIFIED |
| SMSpecialty Minerals INC | Zachary | LA | — | ◇ UNVERIFIED |
| SMSpecialty Minerals INC | Plymouth | NC | — | ◇ UNVERIFIED |
| SMSpecialty Minerals INC | Jay | ME | — | ◇ UNVERIFIED |
| SMSpecialty Minerals INC. | Woodland | ME | — | ◇ UNVERIFIED |
| SMSpecialty Minerals INC - International | International Falls | MN | — | ◇ UNVERIFIED |
| SMSpecialty Minerals Incorporated | Franklin | VA | — | ◇ UNVERIFIED |
| SMSpecialty Minerals Inc, Owner, and Specialty Minerals Mississippi Inc, Operator | Brookhaven | MS | — | ◇ UNVERIFIED |
| SMSpecialty Minerals (michigan) INC. (p1480) | Quinnesec | MI | — | ◇ UNVERIFIED |
| SCStandard Carbon, LLC | Dunnellon | FL | — | ◇ UNVERIFIED |
| SASulphuric Acid Trading | Tampa | FL | — | ◇ UNVERIFIED |
| SCSummit Custom Spray Drying INC @ Flemington Ind Pk | Flemington | NJ | — | ◇ UNVERIFIED |
| SRSummit Research Labs, INC. | Middletown | NY | — | ◇ UNVERIFIED |
 Sun Chemical CORP | Williamsport | MD | — | ◇ UNVERIFIED |
| SPSunedison Polysilicon Facility | Pasadena | TX | — | ◇ UNVERIFIED |
| SASunlit Arizona LLC | Phoenix | AZ | — | ◇ UNVERIFIED |
| SLSuperior Lime & Chemical | Phoenix | AZ | — | ◇ UNVERIFIED |
| SSSw Shattuck Chemical CO INC | Denver | CO | — | ◇ UNVERIFIED |
| SCSynthio Chemicals | Broomfield | CO | — | ◇ UNVERIFIED |
| TLTdc LLC - Westlake Plant | Westlake | LA | — | ◇ UNVERIFIED |
| TTerralithium | Brawley | CA | — | ◇ UNVERIFIED |
| TRTesoro Refining and Marketing Co, LLC | Carson | CA | — | ◇ UNVERIFIED |
| TKTessenderlo Kerley | Dumas | TX | — | ◇ UNVERIFIED |
