| DCDauber CO | Tonica | IL | Nonmetallic Mineral Product Manufacturing327992 | 20-99 | ◐ LIKELY ACTIVE |
| DMDicaperl Minerals CORP. | Nashville | TN | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| EMExcalibar Minerals, LLC | Dyersburg | TN | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| EMExcalibar Minerals of Lousiana LLC | New Iberia | LA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| HAHanson Aggregates Southeast LLC | Taylors | SC | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| HMHarsco Metals | Muscatine | IA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| HMHarsco Minerals | Drakesboro | KY | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| HMHeidelberg Materials Ne Llc/rich Hill Quarry | Connellsville | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| HIHolcim Incorporated | Birmingham | AL | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| HJHuber, J.m., CORP | Kennesaw | GA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| ISImerys Sandersville Calcine Plant | Sandersville | GA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| KFKeystone Filler & Mfg/muncy Coal Prep Pl | Muncy | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| KMKyanite Mining Corporation - Dillwyn Mullite Plant | Dillwyn | VA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| LCLehigh Cement CO | Woodsboro | MD | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| MMMartin Marietta:rock Hill | Rock Hill | SC | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| MSMetal Services LLC (phoenix Global) | Ghent | KY | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| M1Multiserv/plt 18 Steelton | Steelton | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| MKMurray Keystone Processing Inc/keystone Cleaning Plt | Indiana | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| NLNanocor LLC | Aberdeen | MS | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| NSNortheast Solite Corporation | Mount Marion | NY | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| OVOmya Verpol Plant | Florence | VT | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| OMOpta - Milan | Milan | MI | Nonmetallic Mineral Product Manufacturing327992 | 1-19 | ◐ LIKELY ACTIVE |
| PPPa Perlite CORP | Bethlehem | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| PSPhoenix Services LLC - Petersburg | Petersburg | VA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| SPSilicon Processors, Inc., Parkersburg | Parkersburg | WV | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| SVSpecialty Vermiculite CORP | Enoree | SC | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| SGSun Gro Horticulture Processing, INC. | Pine Bluff | AR | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| TCTAM Ceramics Group of NY, LLC | Niagara Falls | NY | Nonmetallic Mineral Product Manufacturing327992 | 20-99 | ◐ LIKELY ACTIVE |
| UCUnimin Corporation | Gleason | TN | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
United States Gypsum Company | Spruce Pine | NC | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| UMUS Mineral Products | Stanhope | NJ | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| USU.s. Silica Company, | Middleton | TN | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| USUS Silica Kosse Plant | Kosse | TX | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| USUS Steel Corporation | Lorain | OH | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| VBVm Buyer Llc/mcnamee Mine | Bath | SC | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| WCWhittemore Company, Inc. | Lawrence | MA | Nonmetallic Mineral Product Manufacturing327992 | 20-99 | ◐ LIKELY ACTIVE |
| BMBarretts Minerals INC. Mill Site | Dillon | MT | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| BRBig River Industries Gravelite Division | Erwinville | LA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| BIBird Incorporated Granular | Norwood | MA | Petroleum and Coal Products Manufacturing324122 | — | ◐ LIKELY ACTIVE |
| BIBpi Inc-greenville Pa Plant | Greenville | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| BMButler Mill Service Company | Butler | IN | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| CCetco | Lovell | WY | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| CMCleveland Mica CO | Lakewood | OH | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| CCColumbia City Mill Services | Columbia City | IN | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| DFDay, F.o. Bituminous - Piney Mtg | Rockville | MD | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| ECEdw C Levy CO - Plant 3 | Ecorse | MI | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| ECEssroc Cement CORP. | Camden | NJ | Nonmetallic Mineral Product Manufacturing327310 | — | ◐ LIKELY ACTIVE |
| FMFulton Mill Service CO | Delta | OH | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| GHGlenn Hunter & Associates | Delta | OH | Nonmetallic Mineral Product Manufacturing327215 | — | ◐ LIKELY ACTIVE |
| HCHarsco CORP. | La Cygne | KS | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |