| QFQuikrete - Flint, Mi Plant | Holly | MI | Nonmetallic Mineral Product Manufacturing327390 | 20-99 | ◐ LIKELY ACTIVE |
| QMQuikrete - Memphis, Tn Plant | Memphis | TN | Nonmetallic Mineral Product Manufacturing327390 | 20-99 | ◐ LIKELY ACTIVE |
| QPQuikrete Peoria | Pekin | IL | Nonmetallic Mineral Product Manufacturing327390 | 1-19 | ◐ LIKELY ACTIVE |
| QSQuikrete - Seattle, Wa Plant | Tacoma | WA | Nonmetallic Mineral Product Manufacturing327390 | 20-99 | ◐ LIKELY ACTIVE |
| QTQuikrete - Toledo, Oh Plant | Toledo | OH | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| RMReady Mixed Concrete Company - Franklin Street Plant | Denver | CO | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| RMReady Mixed Concrete Plant 11 | Arvada | CO | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| RMReady Mix USA Lakeshore Facility | Birmingham | AL | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| RMReady Mix USA LLC. | Dallas | GA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| RMReady Mix Usa,llc | Birmingham | AL | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| RMReady Mix USA - Weems Rd Plant | Tallahassee | FL | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| RSRec Solar Grade Silicon | Moses Lake | WA | Nonmetallic Mineral Product Manufacturing327992 | 100-499 | ◐ LIKELY ACTIVE |
| RPRedlands Plant 3 | Redlands | CA | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| RSRepublic Steel - Canton Facility | Canton | OH | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| RPResco Products INC | Hammond | IN | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| RDRes Dba Steel Dynamics - Roanoke Bar Division | Roanoke | VA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| RCRex Cut Products INC | Fall River | MA | Nonmetallic Mineral Product Manufacturing327910 | 20-99 | ◐ LIKELY ACTIVE |
| RMRhi Monofrax LTD | Falconer | NY | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| RPRiverside Plant 1 | Riverside | CA | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| RCRoanoke Cement Company | Troutville | VA | Nonmetallic Mineral Product Manufacturing327310 | — | ◐ LIKELY ACTIVE |
| RRRobertson's Ready Mix Carroll Canyon Plant 32 | San Diego | CA | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| RCRobinson Concrete, INC. | Auburn | NY | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| RRRock & Rail - Highway 34 Facility | Johnstown | CO | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| RMRocky Mountain Bottle CO - 10619 W 50th | Wheat Ridge | CO | Nonmetallic Mineral Product Manufacturing327213 | — | ◐ LIKELY ACTIVE |
| RURoxul Usa, INC. | Byhalia | MS | Nonmetallic Mineral Product Manufacturing327993 | — | ◐ LIKELY ACTIVE |
| RARusstech Admixtures INC | Louisville | KY | Food Manufacturing311942 | — | ◐ LIKELY ACTIVE |
| SASaint-gobain Abrasive, INC. | Brownsville | TX | Nonmetallic Mineral Product Manufacturing327910 | 100-499 | ◐ LIKELY ACTIVE |
| SGSaint Gobain Abrasives | Worcester | MA | Nonmetallic Mineral Product Manufacturing327124 | — | ◐ LIKELY ACTIVE |
| SCSaint-gobain Ceramics & Plastics, INC. D/b/a Saint-gobain Norpro | Soddy-daisy | TN | Nonmetallic Mineral Product Manufacturing327110 | — | ◐ LIKELY ACTIVE |
| SISaint-gobain/norton Ind. Ceramics CORP. - Corhart Refractories | Buckhannon | WV | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| SQSaint-gobain Quartz USA | Louisville | KY | Textile Mills313110 | 20-99 | ◐ LIKELY ACTIVE |
| SASamuel Advanced Fabrication | Tucson | AZ | Nonmetallic Mineral Product Manufacturing327211 | 100-499 | ◐ LIKELY ACTIVE |
| SFSanta Fe Springs Plant 10 | Santa Fe Springs | CA | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| S1Savannah (plant 11) | Savannah | GA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| SRSchreiter Ready Mix and Materials INC | O'fallon | MO | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| SMScm-kerr Morganton Plant | Morganton | NC | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SRSemo Ready Mix Inc-cape Girardeau | Jackson | MO | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| SCSequatchie Concrete Service, INC. | Knoxville | TN | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
Shelterworks, LTD | Philomath | OR | Nonmetallic Mineral Product Manufacturing327331 | — | ◐ LIKELY ACTIVE |
Sherman Industries INC. Bessemer Plant | Bessemer | AL | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| SMSignal Mountain Cement CO | Chattanooga | TN | Nonmetallic Mineral Product Manufacturing327310 | — | ◐ LIKELY ACTIVE |
| SCSika Corporation | Fairless Hills | PA | Nonmetallic Mineral Product Manufacturing327390 | 20-99 | ◐ LIKELY ACTIVE |
| SSSika Sealy | Sealy | TX | Nonmetallic Mineral Product Manufacturing327390 | 20-99 | ◐ LIKELY ACTIVE |
| SBSlater Builders Supply | Logan | OH | Nonmetallic Mineral Product Manufacturing327120 | 1-19 | ◐ LIKELY ACTIVE |
| SSSmith Setzer & Sons | Catawba | NC | Nonmetallic Mineral Product Manufacturing327332 | 20-99 | ◐ LIKELY ACTIVE |
| SRSmyrna Ready Mix Concrete | South Pittsburg | TN | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| SRSmyrna Ready Mix Concrete, LLC | Nashville | TN | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| SRSmyrna Ready Mix Concrete, LLC | St. Cloud | FL | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| SCSoutheastern Concrete Products Upstate LLC | Simpsonville | SC | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| SRSoutheast Ready Mix INC | Waynesboro | MS | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |