| RCRudy Construction Company Ready Mix | Oklahoma City | OK | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| RRRussell Ready Mix | Russell | KS | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SPSabine Pass CBP | Sabine Pass | TX | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SCSan Clemente Plant #20 | San Clemente | CA | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SJSan Jacinto Plant #6 | San Jacinto | CA | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SASanta Ana Plant #17 | Santa Ana | CA | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SScappoose | Scappoose | OR | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SAScott Ave | Brooklyn | NY | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SCSearsport Concrete Plant | Searsport | ME | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SPSelinsgrove Plant | Selinsgrove | PA | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SSelma | Selma | NC | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| STShamokin/Coal Township Plant | Coal Township | PA | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SSheltonsLLC | Wendover | UT | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SRShippensburg RMC Plant | Shippensburg | PA | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SCShop Charlotte | Charlotte | NC | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SVSimi Valley #49 | Simi Valley | CA | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SCSimon - Custer Ready Mix | Custer | ND | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SCSimon - Custer Ready Mix | Custer | SD | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SHSimon Hot Springs Ready Mix | Hot Springs | SD | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SRSimon - Rapid City Concrete Plant | Rapid City | SD | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SSSimon - Sidney RMX Plant | Sidney | NE | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SSSoda Springs Ready Mix | Soda Springs | ID | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SSomerset | Somerset | PA | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SRSomerset RMC Plant | Somerset | PA | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SCSouthern Concrete Products of Buckeye | Buckeye | AZ | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SCSouthern Concrete Products of Dyersburg | Dyersburg | TN | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SCSouthern Concrete Products of Murray | Murray | KY | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SCSouthern Concrete Products of Paducah | Paducah | KY | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SCSouthern Concrete Products of Sikeston | Sikeston | MO | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SCSouthern Concrete Products of Stanton | Stanton | TN | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SCSouthern Concrete Products of Union City | Union City | TN | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SCSouthern Concrete Products of West Memphis | West Memphis | AR | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SCSRM Colonial LLC | North Bergan | NJ | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SESRM Eastern LLC | Sharon Hill | PA | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SESRM Eastern LLC | Farmingdale | NJ | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SFSRM Ferrara West LLC | Jersey City | NJ | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SMStandard Materials Group Centerton Plant | Rogers | AR | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SMStandard Materials Group Fayetteville Plant | Fayetteville | AR | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SMStandard Materials Group Gravette Plant | Gravette | AR | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SMStandard Materials Group Hindsville Plant | Fayetteville | AR | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SMStandard Materials Group Siloam Springs Plant | Fayetteville | AR | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SMStandard Materials Group Springdale shop | Springdale | AR | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SHSteelton HMA Plant | Steelton | PA | Petroleum and Coal Products Manufacturing324121 | 1-19 | ◐ LIKELY ACTIVE |
| SMStephens Manufacturing Co., Inc. - Burkesville | Burkesville | KY | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SRSturgis Ready Mix | Sturgis | MI | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SCSun City Ready Mix | El Mirage | AZ | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SISunrock Industries LLC- East Wake Concrete Facility | Zebulon | NC | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SISunrock Industries LLC-North Raleigh Distribution Center | Wake Forest | NC | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SISunrock Industries LLC-Woodsdale Distribution Center | Roxboro | NC | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SWSuperior WI | Superior | WI | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |