| WIWpw Industries INC | Streator | IL | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| 9S901 S 3rd Street & 4505 Prosperity Drive | Fort Pierce | FL | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| APAdel Plant | Adel | IA | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| BBBennett Brick Plant | Milsap | TX | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| BBBirmingham Brick Plant | Leeds | AL | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| BGBlasch Global Solutions | Beaufort | SC | Nonmetallic Mineral Product Manufacturing327120 | 1-19 | ◐ LIKELY ACTIVE |
| BPBlasch Precision Ceramics Albany | Albany | NY | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| BCBlock-Lite Company, Inc | Flagstaff | AZ | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| BPBowerston Plant | Bowerston | OH | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| BFBrickcraft Farmersburg | Farmersburg | IN | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| CDCrossville DC | Crossville | TN | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| CPCrossville Plant 1 | Crossville | TN | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| CPCrossville Plant 2 | Crossville | TN | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| DGDaltile Gettysburg | Gettysburg | PA | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| DNDurham, NC | Durham | NC | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| FLFiltros Limited | East Rochester | NY | Nonmetallic Mineral Product Manufacturing327120 | 1-19 | ◐ LIKELY ACTIVE |
Fireclay Tile Spokane | Spokane | WA | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| FIFireline Inc. | Youngstown | OH | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
Florida Tile Advanced Manufacturing Center | Lawrenceburg | KY | Nonmetallic Mineral Product Manufacturing327120 | 100-499 | ◐ LIKELY ACTIVE |
| GSGeneral Shale Brick Augusta | Augusta | GA | Nonmetallic Mineral Product Manufacturing327120 | 100-499 | ◐ LIKELY ACTIVE |
| GSGeneral Shale Brick Inc. DBA Summitville Tile | Johnson City | TN | Nonmetallic Mineral Product Manufacturing327120 | 100-499 | ◐ LIKELY ACTIVE |
| GSGeneral Shale Brick Inc- Denver | Denver | CO | Nonmetallic Mineral Product Manufacturing327120 | 100-499 | ◐ LIKELY ACTIVE |
| GSGeneral Shale Moncure | Moncure | NC | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| GSGeneral Shale Rome | Rome | GA | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| HWHarbison Walker International | Thomasville | GA | Nonmetallic Mineral Product Manufacturing327120 | 1-19 | ◐ LIKELY ACTIVE |
| HIHarbisonwalker international 1700 | southpoint | OH | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| HIHarbisonWalker International Vandalia | Vandalia | MO | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| HMHC Muddox | Sacramento | CA | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| HMHowmet - Morristown M4 | Morristown | TN | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| HFHWI - Fulton Brick | Fulton | MO | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| IPIberia plant | Iberia | OH | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| IBInterstate Brick | West Jordan | UT | Nonmetallic Mineral Product Manufacturing327120 | 100-499 | ◐ LIKELY ACTIVE |
| KUKelsen, USA | Tarentum | PA | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| LPLawrenceville Plant | Lawrenceville | VA | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| LCLECO Corporation -- Ceramics | Benton Harbor | MI | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| MRMagnesita Refractories Company - Huron | Huron | OH | Nonmetallic Mineral Product Manufacturing327120 | 1-19 | ◐ LIKELY ACTIVE |
| MRMagnesita Refractories Pevely Plant | Pevely | MO | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| MHMB Holdings, LLC | Mangum | OK | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| MBmcavoy brick 2019 | Phoenixville | PA | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| MOMerry Oaks | Moncure | NC | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| MCMono Ceramics, INC | Benton Harbor | MI | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| MBMontgomery Brick Plant | Montgomery | AL | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| MAMorgan Advanced Materials Certech Inc | Wilkes Barre | PA | Nonmetallic Mineral Product Manufacturing327120 | 100-499 | ◐ LIKELY ACTIVE |
| MAMorgan Advanced Materials Certech Inc | Wilkes-Barre | PA | Nonmetallic Mineral Product Manufacturing327120 | 100-499 | ◐ LIKELY ACTIVE |
| MSMt Savage Specialty Refractories - Curwensville | Curwensville | PA | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| MSMt Savage Specialty Refractories - Ingomar | Ingomar | PA | Nonmetallic Mineral Product Manufacturing327120 | 1-19 | ◐ LIKELY ACTIVE |
| PCPacific Clay Products, Inc. Castaic | Castaic | CA | Nonmetallic Mineral Product Manufacturing327120 | 1-19 | ◐ LIKELY ACTIVE |
| PCPacific Clay Products, Inc. Lake Elsinore | Lake Elsinore | CA | Nonmetallic Mineral Product Manufacturing327120 | 100-499 | ◐ LIKELY ACTIVE |
| PIPandrol Inc | Napoleon | OH | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| PAPCC Airfoils, LLC - Ceramics Group (Lake Erie Design) | Wickliffe | OH | Nonmetallic Mineral Product Manufacturing327120 | 100-499 | ◐ LIKELY ACTIVE |