| HMHarsco Metals - Gallatin | Ghent | KY | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| HMHarsco Metals - Natrona Facility - Gate 10 | Natrona Heights | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| HMHarsco Metals Plant 1 | Gadsden | AL | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| HMHarsco Metals - Warren | Warren | OH | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| HMHarsco Multiserv Plant 69 | Tuscaloosa | AL | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| HRHarsco - Reed Minerals Division | Gary | IN | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| HHHarso Heckett Multiserv Plant 67 | Pueblo | CO | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| HPHeckett Plant #21 | Natrona Heights | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| IDIcmi/nukote Dunbar Plt | Connellsville | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| IOImerys Oilfield Solutions | Wrens | GA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| IPImerys Perlite Usa, INC | Quincy | FL | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| IMIndustrial Minerals | Kings Creek | SC | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| IMInternational Mill Services | Tuscaloosa | AL | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| IIIsolatek International INC | San Bernardino | CA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| KCKinsley Const Inc/w Filler Ensminger & Williams Quarries | York | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| KMKt Mica | Spruce Pine | NC | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| LNLafarge North America-mineral Solutions | Eagan | MN | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| LMLaney Materials LLC - Laney Recycling and Aggregates | Laurel | MD | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| LNLhoist North America of Tn, LLC Dba Spinks Clay Company, INC. Dba Tyson Plant | Paris | TN | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| LSLone Star Industries INC Dba Buzzi Unicem USA - New Orleans Cement Terminal | New Orleans | LA | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| MMMartin Marietta Materials, INC. - Wilson Quarry | Wilson | NC | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| MCMellott Co/cedar Hill Quarry | Peach Bottom | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| MLM-i LLC - Amelia Grinding & Bulk Storage Facility | Amelia | LA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
 Mmc Materials INC | Memphis | TN | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| NSNational Silica - Batesville Drying Site | Batesville | AR | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| NENew Enterprise Stone & Lime CO Inc/fairfield | Cumberland | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| NENew Enterprise Stone & Lime CO Inc/maxatawny | Kutztown | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| NANorth American Recycling and Crushing LLC | Anaheim | CA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| NSNorth Star Water Treatment Facility | Grass Valley | CA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| OMOpta Minerals | Baltimore | MD | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| OMOpta Minerals Harseeville Plant | Hardeeville | SC | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| OPOswego Public Works Department | Oswego | NY | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| OCOzinga Cement Incorporated Contractor of Cleveland-cliffs Bu | Burns Harbor | IN | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| PEPark Enterprise Construction Company LLC | Marion | OH | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| PRPenn Rock Aggregates | North Versailles | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| PSPennsy Supply Summit Sta/quarry Wayne Twp | Summit Station | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| PSPhoenix Services LLC | Chesterton | IN | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| PSPhoenix Services LLC | Roanoke | VA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| PMPremier Magnesia LLC Aspers Plant | Aspers | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| PVP V P Industries INC | North Bloomfield | OH | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| RRReflective Recycling of Sc LLC | Pacolet | SC | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| RIRm Industrials - Rm Rail Park Recycle Op | Aurora | CO | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| SPSaint-gobain Proppants (lr) | Benton | AR | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| SIS&b Industrial Minerals North America, INC. | Morganton | NC | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| SMSmoky Mountain Transfer Corporation | Charleston | TN | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| SGSms Group Incorporated | Gary | IN | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| SCSolite CORP | Cascade | VA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| SCSouthern Clay Products | Gonzales | TX | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| SMSpecialty Minerals INC | Zachary | LA | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| SIStein, INC | Birmingham | AL | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
