| LTLondon Tile Company | New London | OH | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| LSLonestar Sierra Equipment, LLC | Tehachapi | CA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| LPL P Mcnear Brick CO INC | San Rafael | CA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| LMLynn Manufacturing | Lynn | MA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| MCMarion Ceramics, Inc, | Marion | SC | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| MPMarshall Plant | Marshall | TX | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| MCMaruhachi Ceramics of America INC | Corona | CA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| MIMc Intyre Tile CO INC | Healdsburg | CA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| MIMcp Industries INC | Elmendorf | TX | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| MIMcp Industries Pittsburg | Pittsburg | KS | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| MPMcqueeney Plant | Seguin | TX | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| MBMeridian Brick Llc, Bessemer Plant No. 6, LLC | Bessemer | AL | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| MTMill Tek Toll Grinders | Arden | NC | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| MWMineral Wells East Facility | Mineral Wells | TX | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| MCMission Clay Prod | Corona | CA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| MRMissouri Refractories | Pevely | MO | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| MMMutual Materials | Mica | WA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| MMMutual Materials CO | Renton | WA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| MMMutual Materials Newcastle Lot 4 Cr Site | Newcastle | WA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| NRNational Refractories & Minera | Livermore | CA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| NRNEP Real Estate of Vineland NJ Urban Renewal, LLC | Vineland | NJ | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| OHOld Hickory Clay | Mayfield | KY | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| OPOmega Prod Int | Corona | CA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| OIOpta Irondale | Irondale | AL | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| OBOwensboro Brick & Tile | Owensboro | KY | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| PSPacassa Studios | Oakland | CA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| PCPacific Clay Products | Corona | CA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| PBPhoenix Brick Yard | Phoenix | AZ | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| PRPioneer Roofing Tile INC | Fontana | CA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| P1Plant 1 Strasburg | Strasburg | OH | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| PAPortobello America, INC. | Cookeville | TN | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| PGPryor Giggy CO | Pueblo | CO | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| QCQuality Components Framing Systems INC. | Whitesboro | NY | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| RBRedland Brick INC /kf Plant | South Windsor | CT | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| RRRed Rock Tileworks Llc | Nashville | TN | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| RPRefractory Products CO | Elgin | IL | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| RPResco Products, INC. | Tarentum | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| RRRhi Refractories - Ione | Ione | CA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| RBRichards Brick CO | Edwardsville | IL | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| RBRichards Brick Company | Saint Louis | MO | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| RCRme Construction Supply CO Ltd, INC. | Kahului | HI | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| RCRoeben CO INC | Carpenter | NC | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| RRRubicon Refractories Inc | Hammond | IN | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| RIRub-r-tek INC | Olney | IL | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| RCRuby Clay Company LLC | Tulsa | OK | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| SJSaint Joe Brick Works INC | Pearl River | LA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| SGShamrock Group Mexico Plant | Mexico | MO | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| SCSika CORP Milpitas | Milpitas | CA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| SRSimister Rental LLC | Santaquin | UT | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| SISlowfire, Inc. | Portland | OR | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
