| TSTri State Brick and Tile Company INC | Jackson | MS | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| UIUni-ref Incorporated | Brookville | IN | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| UBUS Brick Elgin Plant | Elgin | TX | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| VUVesuvius USA CORP. - Conneaut Plant (0204020036) | Conneaut | OH | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| SCSilicon Carbide Products INC | Horseheads | NY | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| 3A317717987 - Ann Sacks Tile & Stone INC | Portland | OR | Nonmetallic Mineral Product Manufacturing327120 | 100-499 | ◐ LIKELY ACTIVE |
| ACAlkegen-SCI (Specialty Ceramics/Unifrax) | Columbiana | OH | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| AMA & M Refractories, INC. | New Boston | OH | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| BTBuckeye Transfer INC | Columbiana | OH | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| CMC-e Minerals Plant 2 | Andersonville | GA | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| CPCrystaphase Products | Spring | TX | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| DTDal Tile Gettysburg Boro Plt | Gettysburg | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| ECEi Ceramics LLC (1431404130) | Cincinnati | OH | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| GSGeneral Shale Brick, INC. Plant 14 Dba Watsontown Brick | Columbia | SC | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| GSGeneral Shale Brick, INC. - Plant 40 | Coosa | GA | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| GGGlen Gery Corporation - Capitol Plant | Manassas | VA | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| HWHarbison Walker Fulton Light Weight | Fulton | MO | Nonmetallic Mineral Product Manufacturing327120 | 1-19 | ◐ LIKELY ACTIVE |
| HIHarbisonwalker international 1700 | South Point | OH | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| HWHarbison Walker International Windham | Windham | OH | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| KKKoch Knight, LLC (1576001851) | East Canton | OH | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| MIMinteq Intl Mfg | Slippery Rock | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| MOMosaics of America, INC. | Fort Pierce | FL | Nonmetallic Mineral Product Manufacturing327110 | 20-99 | ◐ LIKELY ACTIVE |
| MSMt Savage Spec Ref/curwensville Plt | Curwensville | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| NINusano, INC | Valencia | CA | Chemical Manufacturing325180 | — | ◐ LIKELY ACTIVE |
| OCOld Carolina Brick CO | Salisbury | NC | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| PIPorcelanite Incorporated | Lexington | NC | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| PIPyrotek, INC. - Neco Division | Salisbury | NC | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| RCRagland Clay Products | Ragland | AL | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| RSRefectory Specialties incorporated | Sebring | OH | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| RPResco Products Inc/new Castle Plant | New Castle | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| SPSealy Plant | Sealy | TX | Chemical Manufacturing325180 | 20-99 | ◐ LIKELY ACTIVE |
| SPSummit Pressed Brick & Tile CO | Pueblo | CO | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| SCSuperior Clay Corporation | Uhrichsville | OH | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| TCTaylor Clay Products, INC. | Salisbury | NC | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| TCThe Christy Refractories Company L.L.C. | Saint Louis | MO | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| TCThermal Ceramics | Emporia | KS | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| TCThermal Ceramics INC. | Augusta | GA | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| TBTriangle Brick Clay County Plant | Henrietta | TX | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| TATYK America | Clairton | PA | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| UIUnifrax I LLC | Tonawanda | NY | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| URUpstate Refractory Services, Inc. | Newark | NY | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| UGUS Gypsum - Norfolk Plant | Norfolk | VA | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| VIVacuform Incorporated | Sebring | OH | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| VPVesuvius Penn Wampum/lawrence | Wampum | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| WCWelding Ceramics LLC | Chattanooga | TN | Nonmetallic Mineral Product Manufacturing327112 | 20-99 | ◐ LIKELY ACTIVE |
| WPWonder Porcelain Group, LLC | Lebanon | TN | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| 1R129999 - Resco Products, INC. | Greensboro | NC | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
56417 - Florida Tile INC | Lawrenceburg | KY | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| AIAlliance Industries INC - Waupaca - Vaughn Road | Waupaca | WI | Wood Product Manufacturing321920 | — | ◐ LIKELY ACTIVE |
| AMAllied Mineral | Brownsville | TX | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |