| CSConcrete Supply CO LLC Spartanburg | Spartanburg | — | ◇ UNVERIFIED |
| CSConcrete Supply CO LLC Summerville | Summerville | — | ◇ UNVERIFIED |
| MPMetromont Paris Mountain | Greenville | — | ◇ UNVERIFIED |
| MCMorgan Concrete Company | Westminster | — | ◇ UNVERIFIED |
| SGSaint Gobain Abrasives | Travelers Rest | — | ◇ UNVERIFIED |
| SCSupreme Cores Holdings LLC | Lancaster | — | ◇ UNVERIFIED |
| SMS&w Murrells Inlet | Murrells Inlet | — | ◇ UNVERIFIED |
| WRWestlake Royal Stone LLC | Chester | — | ◇ UNVERIFIED |
| AEAac East LLC | Bennettsville | — | ◐ LIKELY ACTIVE |
| ACArrow Concrete Company - Beaufort | Beaufort | — | ◐ LIKELY ACTIVE |
| BDBlue Dot Readi-mix 521 Plant | Fort Mill | — | ◐ LIKELY ACTIVE |
| BSBrdm Sandlapper Concrete Llc-duncan | Duncan | — | ◐ LIKELY ACTIVE |
| CQCAE Quikrete | West Columbia | 20–99 | ◐ LIKELY ACTIVE |
| CLC L Benton Sea Mist Mine | Myrtle Beach | — | ◐ LIKELY ACTIVE |
| CSConcrete Supply CO LLC - Bennettsville | Bennettsville | — | ◐ LIKELY ACTIVE |
| CSConcrete Supply CO LLC - Cheraw | Cheraw | — | ◐ LIKELY ACTIVE |
| CSConcrete Supply CO LLC - Clemson | Seneca | — | ◐ LIKELY ACTIVE |
| CSConcrete Supply CO LLC - Lexington | Lexington | — | ◐ LIKELY ACTIVE |
| ENEurokera North America INC | Fountain Inn | 100–499 | ◐ LIKELY ACTIVE |
| EREvans Ready Mix | Florence | — | ◐ LIKELY ACTIVE |
| FCFlorence Concrete Products, Inc. Sumter Plant | Sumter | 20–99 | ◐ LIKELY ACTIVE |
| GSGeneral Shale Brick, INC. Plant 14 Dba Watsontown Brick | Columbia | — | ◐ LIKELY ACTIVE |
| GRGlasscock Ready Mix Concrete LLC - Central Mix Broad Street | Sumter | — | ◐ LIKELY ACTIVE |
| GIGuardian Industries LLC | Richburg | 100–499 | ◐ LIKELY ACTIVE |
| HAHanson Aggregates Southeast LLC | Taylors | — | ◐ LIKELY ACTIVE |
| JCJ&s Concrete Number 2 New | Lancaster | — | ◐ LIKELY ACTIVE |
| KPKnights Precast INC | Summerville | — | ◐ LIKELY ACTIVE |
| KRKnights Redi Mix Moncks Corner Plant 1 | Moncks Corner | — | ◐ LIKELY ACTIVE |
| KMKrm Midlands LLC - Sumter Plant 14 | Sumter | — | ◐ LIKELY ACTIVE |
| LFLauscha Fiber International | Summerville | — | ◐ LIKELY ACTIVE |
| LPLindsay Precast SC | Rock Hill | 20–99 | ◐ LIKELY ACTIVE |
| MMMartin Marietta:rock Hill | Rock Hill | — | ◐ LIKELY ACTIVE |
| NSNorfolk Southern Railway | Spartanburg | — | ◐ LIKELY ACTIVE |
| OAOldcastle Adams Products - Cowpens | Cowpens | — | ◐ LIKELY ACTIVE |
| PCPort City Concrete- Harleyville | Harleyville | 20–99 | ◐ LIKELY ACTIVE |
| PCPort City Concrete- Pace | North Charleston | 1–19 | ◐ LIKELY ACTIVE |
| QPQuikrete Proposed Storage Yard Site Improvements | Bowman | — | ◐ LIKELY ACTIVE |
| SRSantee Redi Mix | Moncks Corner | — | ◐ LIKELY ACTIVE |
| SBSims Bark CO of Georgia LLC | Bowman | — | ◐ LIKELY ACTIVE |
Smith-Midland Corporation (South Carolina) | Hopkins | 20–99 | ◐ LIKELY ACTIVE |
| SCSoutheastern Concrete Products Columbia | Columbia | 1–19 | ◐ LIKELY ACTIVE |
| SVSpecialty Vermiculite CORP | Enoree | — | ◐ LIKELY ACTIVE |
| SCSrm - Charleston #706 | Johns Island | — | ◐ LIKELY ACTIVE |
| SGSrm - Goose Creek #707 | Goose Creek | — | ◐ LIKELY ACTIVE |
| TSThe Sefa Group INC - Mcmeekin Station | Columbia | — | ◐ LIKELY ACTIVE |
| TCThomas Concrete of South Carolina - Cowpens | Cowpens | — | ◐ LIKELY ACTIVE |
| TCThomas Concrete of South Carolina INC Summerville | Summerville | — | ◐ LIKELY ACTIVE |
| VMVanderbilt Minerals LLC | Bath | — | ◐ LIKELY ACTIVE |
| VSVan Smith Concrete:#5 | Goose Creek | — | ◐ LIKELY ACTIVE |
| VSVan Smith Concrete Company - Clements Ferry Plant | Charleston | — | ◐ LIKELY ACTIVE |