| HRHawaiian Rock Products | Sinajana | GU | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| HMHeckett Multiserv Plant 18 a Harsco Company | Steelton | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| HMHeidelberg Materials Ne Llc/rich Hill Quarry | Connellsville | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| HSHeritage Slag Products, LLC (gary) | Gary | IN | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| HIHolcim (us) INC | Weirton | WV | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| IMIdaho Minerals, L.l.c. | Malad City | ID | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| IPImerys Perlite USA | Escondido | CA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| IMIntegrated Materials INC | San Jose | CA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| IMIvory Mine Project | Lovelock | NV | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| JCJ Cloud INC | El Cajon | CA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| JHJm Huber Corporation | Atlanta | GA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| KMKansas Minerals | Mankato | KS | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| KQKapaa Quarry Recycling INC | Kailua | HI | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| KAKincheloe and Sons | Myrtle Point | OR | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| LCLaguna Clay CO | City of Industry | CA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| LCLash Const. (5 S. Calle Cesar Chavez ) | Santa Barbara | CA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| LCLash Construction | Santa Barbara | CA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| LVLash/screen - Various Locations | Santa Barbara | CA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| LSLegacy Systems INC | Fremont | CA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| LRLetohatchee Rail | Letohatchee | AL | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| LELevy Environmental Services Company | Delta | OH | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| LLLevy Lexington | Lexington | NC | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| LLLwfp LLC Dba Trinity Esc | Frazier Park | CA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| MSMetal Services LLC | Ghent | KY | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| MUMetcan USA | Adrian | MI | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| MBMicro-lite - Buffalo (handling Facility) | Buffalo | KS | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| MUMicronized Ultra Tech INC | Richmond | CA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| MPMidwest Perlite Company, Inc. | Appleton | WI | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| MQMillville Quarry | Baltimore | MD | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| MSMi Swaco Greystone Barite Mine | Battle Mountain | NV | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| MMultiserv | Birmingham | AL | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| NSNevada Slag, INC | Mcgill | NV | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| NPNorcal Perlite, Inc. | Bakersfield | CA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| NANorth American Recycling & Crushing, LLC. | Colton | CA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| OSOzinga Slag LLC | East Chicago | IN | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| PVPalmetto Vermiculite | Woodruff | SC | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| PSPauls Station of Webster | Rochester | NY | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| PTPebble Technology International | Pearl River | LA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| PIPlacerville Industries | Placerville | CA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| PSPreferred Sands of Minnesota LLC | Woodbury | MN | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| PIPvp Industries INC. | North Bloomfield | OH | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| RERamrock Environmental | Stockton | CA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| RBRecology Blossom Valley Organics - South | Lamont | CA | Chemical Manufacturing325314 | — | ◇ UNVERIFIED |
| RARecycled Aggregate Materials Company INC | Sun Valley | CA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| RIRedco Ii | North Hollywood | CA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| RIRoss Island Hardtack Island Plant | Portland | OR | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| SCSilbrico Corporation | Brunswick | GA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| SCSkyway Cement CO LLC | Chicago | IL | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| SPSlag Plant | El Paso | TX | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| SCSoutheastern Clay CO | Aiken | SC | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
