| SIShamar Investments, LLC | Travelers Rest | SC | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| SNSixin North America Inc/greenville South Carolina Operations | Taylors | SC | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| SSpecchem | Harleyville | SC | Chemical Manufacturing325520 | — | ◇ UNVERIFIED |
| SCSpectra Colorants INC | Union | SC | Chemical Manufacturing325132 | — | ◇ UNVERIFIED |
 Sun Chemical Corporation | Goose Creek | SC | Chemical Manufacturing325132 | — | ◇ UNVERIFIED |
| SFSun Fiber LLC | Richburg | SC | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| TRTahoma Rubber & Plastics INC | Abbeville | SC | Chemical Manufacturing325212 | — | ◇ UNVERIFIED |
| TSThe Sefa Group INC | Gaston | SC | Chemical Manufacturing325188 | — | ◇ UNVERIFIED |
| TATitan Atlas Manufacturing LLC | North Charleston | SC | Chemical Manufacturing325188 | — | ◇ UNVERIFIED |
| TWTrison Wells, LLC | Walterboro | SC | Chemical Manufacturing325612 | — | ◇ UNVERIFIED |
| UAUltra Additives, LLC D/b/a Munzing North America, LP | Clover | SC | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| UCUnion Carbide Corporation | Lugoff | SC | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| USUnited States Department of Energy Savannah River Site | Aiken | SC | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| USUnited States Doe - Savannah River Site Managed and Operated By Srns, LLC | Aiken | SC | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| WAWellman Advanced Materials LLC | Poston | SC | Chemical Manufacturing325222 | — | ◇ UNVERIFIED |
| WEWestinghouse Electric:columbia | Columbia | SC | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| WSWoodfield Systems USA INC | Columbia | SC | Chemical Manufacturing325110 | — | ◇ UNVERIFIED |
