| BBBelden Brick | Sugarcreek | OH | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| BSBetty Sandford | Monrovia | CA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| BBBoral Bricks - Atlanta Plant | Smyrna | GA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| BBBoral Bricks Van Wyck Plant | Lancaster | SC | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| BBBoral Building Products, INC. | Jackson | TN | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| BIBoral Industries INC | Macon | GA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| BMBrick Manufacturing - Lehi Plant | Lehi | UT | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| BPBuilding Products Supply CO | Phoenix | AZ | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| BWB & W Tile CO INC | Gardena | CA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| CUCalderys USA INC. | Jacksonville | AL | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| CPCalifornia Pottery & Tile Works INC | Los Angeles | CA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| CCCan Clay Corporation | Cannelton | IN | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| CBCaprock Brick Holdings, LLC | Mangum | OK | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| CCCastaic Clay Products, LLC | Castaic | CA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| CMC-e Minerals Plants 1,2 and 6 | Andersonville | GA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| CSCherokee Sanford Group LLC Plant 34 | Burlington | NC | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| CFChicago Fire Brick CO | Chicago | IL | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| CCClay Concepts LLC | Marshall | TX | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| CTConroe Technology Center | Conroe | TX | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| COCounty of San Diego Department of General Services | Lemon Grove | CA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| CICrossville INC | Dickson | TN | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| CCCrystal Crk Ceramic Tile | Dallas | TX | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| DBDarlington Brick & Clay/darlington | Darlington | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| DBDesign By Built to Last INC | Venice | FL | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| DCD'hanis Clay Products INC | D'hanis | TX | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| DODL Operations LLC | Indianapolis | IN | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| ESElementis Specialties INC | Newberry Springs | CA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| EPElgin Plant | Elgin | TX | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| EFEPS Fabricators LLP | Plymouth | MN | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| GPGarrison Plant | Garrison | TX | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| GCGeneral Clay Products CORP | Logan | OH | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| GCGeneral Clay Products CORP | Nelsonville | OH | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| GCGeneral Clay Products Plant No 5 | Wadsworth | OH | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| GSGeneral Shale | Atkins | VA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| GSGeneral Shale Brick, INC. - Kings Mountain Fa | Grover | NC | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| GSGeneral Shale Brick INC Plant 44 | Grover | NC | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| GSGeneral Shale Brick, Plant 37 | Somerset | VA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| GSGeneral Shale Products | Corbin | KY | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| GCGlen-gery CORP. Iberia Plant (0351000051) | Iberia | OH | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| GIGranix INC | Laurel | MD | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| HBHanson Brick Elgin Facility | Elgin | TX | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| HIHarbisonwalker International, INC Fulton Brick Plant | Fulton | MO | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| HIHarbison-walker International, INC. Vandalia Plant | Vandalia | MO | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| HBHope Brick Works | Hope | AR | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| IIInterpace Industries INC | Ogden | UT | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| ICIpsen Ceramics | Pecatonica | IL | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| IBIskilar Brick INC | Coeymans | NY | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| KBKansas Brick & Tile | Hoisington | KS | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| KTKeen Tile INC | Springfield | IL | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| KCKy-tenn Clay CO | Mayfield | KY | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
