| 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 | 1–19 | ◐ LIKELY ACTIVE |
| PCPort City Concrete- Pace | North Charleston | 1–19 | ◐ LIKELY ACTIVE |
| QPQuikrete Proposed Storage Yard Site Improvements | Bowman | — | ◐ 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 |
| SSSrm - Summerville #708 | Summerville | — | ◐ LIKELY ACTIVE |
| SCSummers Concrete Contracting, INC. Plant 450 | Kinston | — | ◐ LIKELY ACTIVE |
| SCSws Con-e-co Plant | Blythewood | — | ◐ LIKELY ACTIVE |
| TSThe Sefa Group INC - Mcmeekin Station | Columbia | — | ◐ LIKELY ACTIVE |
| TCThomas Concrete of South Carolina - Cowpens | Cowpens | — | ◐ LIKELY ACTIVE |
| TCTindall Corp-sc Division | Fairforest | — | ◐ LIKELY ACTIVE |
| VSVan Smith Concrete Company - Clements Ferry Plant | Charleston | — | ◐ LIKELY ACTIVE |
| VBVm Buyer Llc/mcnamee Mine | Bath | — | ◐ LIKELY ACTIVE |
| VCVulcan Const Mat LP Anderson Quarry | Anderson | — | ◐ LIKELY ACTIVE |
| VMVulcan Materials:columbia Quarry | Columbia | — | ◐ LIKELY ACTIVE |
| AAAdams an Oldcastle Company - Greenville Sc | Greenville | — | ◐ LIKELY ACTIVE |
| ACAdams Cowpens Dm | Gaffney | — | ◐ LIKELY ACTIVE |
| ARAdams Ridgeway | Ridgeway | — | ◐ LIKELY ACTIVE |
| AJA J Equipment Company Duncan | Duncan | — | ◐ LIKELY ACTIVE |
| AWArcher Western Construction | Chapin | — | ◐ LIKELY ACTIVE |
| ANArgos North Charleston Concrete Plant | North Charleston | — | ◐ LIKELY ACTIVE |
| ASArgos Summerville Concrete Plant | Summerville | — | ◐ LIKELY ACTIVE |
| ACAugusta Concrete Block | North Augusta | 20–99 | ◐ LIKELY ACTIVE |
| CCCarolina Concrete Newberry | Newberry | — | ◐ LIKELY ACTIVE |
| CPConcrete Pipe & Precast Llc-charleston Plant | North Charleston | — | ◐ LIKELY ACTIVE |
| CSConcrete Supply CO - Downtown | Columbia | — | ◐ LIKELY ACTIVE |
| CSConcrete Supply Co., LLC - Conway | Conway | — | ◐ LIKELY ACTIVE |
| CSConcrete Supply CO LLC - Envision Temp Plant | Florence | — | ◐ LIKELY ACTIVE |
| CSConcrete Supply CO LLC North Myrtle | Longs | — | ◐ LIKELY ACTIVE |
| CSConcrete Supply Co., LLC - Orangeburg | Orangeburg | — | ◐ LIKELY ACTIVE |
| CSConcrete Supply CO LLC - Palmetto Logistics Temp | North Charleston | — | ◐ LIKELY ACTIVE |
| CSConcrete Supply CO LLC - Seven M Plant | Charleston | — | ◐ LIKELY ACTIVE |
| CSConcrete Supply CO LLC - Spartanburg National | Spartanburg | — | ◐ LIKELY ACTIVE |
| FCFlorence Concrete Products Incorporated | Florence | 100–499 | ◐ LIKELY ACTIVE |
| GCGossett Concrete Pipe | Greenville | — | ◐ LIKELY ACTIVE |
| GCGsp Concrete LLC | Duncan | — | ◐ LIKELY ACTIVE |
| HAHanson Aggregates Southeast Incorporated Anderson Quarry | Anderson | — | ◐ LIKELY ACTIVE |
| HCHarper Company | Hebron | — | ◐ LIKELY ACTIVE |
| JCJ&s Concrete Number 1 Old | Lancaster | — | ◐ LIKELY ACTIVE |
| KRKnight Redi-mix INC. - Plant 4 | Summerville | — | ◐ LIKELY ACTIVE |