| 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 |
| SCShell Catalysts and Technologies L.p. | Port Allen | LA | — | ◇ UNVERIFIED |
| SMShepherd Middletown Company | Middletown | OH | — | ◇ UNVERIFIED |
| SRSid Richardson Carbon CO | Borger | TX | — | ◇ UNVERIFIED |
| SASigma - Aldrich Co-sigma Chemical Company | Saint Louis | MO | — | ◇ UNVERIFIED |
| SGSi Group | Rotterdam Junction | NY | — | ◇ UNVERIFIED |
| SGSi Group INC - South Plant | Morgantown | WV | — | ◇ UNVERIFIED |
| SQSkw Quab Chemicals | Theodore | AL | — | ◇ UNVERIFIED |
| SPSlide Products INC | Wheeling | IL | — | ◇ UNVERIFIED |
| SOSnap on Diagnostics | Elkhorn | WI | — | ◇ UNVERIFIED |
| SRSnf Riceboro Plant | Riceboro | GA | — | ◇ UNVERIFIED |
| SLSolenis LLC - Suffolk | Suffolk | VA | — | ◇ UNVERIFIED |
| SPSolenis-macon Plant | Macon | GA | — | ◇ UNVERIFIED |
| SISolutia INC Anniston Plant | Anniston | AL | — | ◇ UNVERIFIED |
| SISolutia INC - Indian Orchard Plant | Springfield | MA | — | ◇ UNVERIFIED |
| SISolutia INC Krummrich Il (part) | Sauget | IL | — | ◇ UNVERIFIED |
| SUSolvay USA INC | Cincinnati | OH | — | ◇ UNVERIFIED |
| SUSolvay USA INC | Martinez | CA | — | ◇ UNVERIFIED |
| SUSolvay USA Inc.-silver Bow Plant | Silver Bow | MT | — | ◇ UNVERIFIED |
| SISongwon International Americas INC. - La Porte | La Porte | TX | — | ◇ UNVERIFIED |
 Southern Ionics INC | Sulphur | LA | — | ◇ UNVERIFIED |
 Southern States Phosphate & Fe Rtilizer CO | Savannah | GA | — | ◇ UNVERIFIED |
| SCSpecialty Chemical Systems, INC | Pottstown | PA | — | ◇ UNVERIFIED |
| SISpecialty Industrial Products, INC. | Spartanburg | SC | — | ◇ UNVERIFIED |
| SMSpecialty Minerals Dolomite Plant | Canaan | CT | — | ◇ UNVERIFIED |
| SCStabond CORP | Gardena | CA | — | ◇ UNVERIFIED |
| SCStepan Company - Fieldsboro Plant | Fieldsboro | NJ | — | ◇ UNVERIFIED |
| SCStruktol Company of America | Cuyahoga Falls | OH | — | ◇ UNVERIFIED |
| SCSud-chemie Chemical Plant | Louisville | KY | — | ◇ UNVERIFIED |
| SLSulfco, LLC | Savannah | GA | — | ◇ UNVERIFIED |
| SSupelco | Bellefonte | PA | — | ◇ UNVERIFIED |
| SSSyensqo Specialty Polymers USA LLC | Marietta | OH | — | ◇ UNVERIFIED |
 Syngenta Crop Protection, LLC. - St Gabriel Plant | Saint Gabriel | LA | — | ◇ UNVERIFIED |
| SCSyntech Chemicals | Houston | TX | — | ◇ UNVERIFIED |
| SASynthomer Adhesive Tehcnologies Eastoflex and East | Longview | TX | — | ◇ UNVERIFIED |
| TETaminco Eastman US - St Gabriel Plant | Saint Gabriel | LA | — | ◇ UNVERIFIED |
| TLTate & Lyle Ingredients Americas LLC | Duluth | MN | — | ◇ UNVERIFIED |
