| HCHarsco Corporation | Calvert | AL | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| HRHolliday Rock Co., INC. | Rialto | CA | Petroleum and Coal Products Manufacturing324121 | — | ◐ LIKELY ACTIVE |
| IPImerys Perlite Usa, INC. | Lake Wales | FL | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| IMIsp Minerals Charmian Quarry | Blue Ridge Summit | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| KQKutztown Quarry | Kutztown | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| LCLafarge CORP Duquesne_plant | Pittsburgh | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| MLMicro-lite, L.l.c. | Buffalo | KS | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| NWNyco Wollastocoat Product Plant | Willsboro | NY | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| ONOil-dri North and South Plant | Ochlocknee | GA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| PGPhoenix Global | Riverdale | IL | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| RMRecovermat Mid-atlantic, LLC | Baltimore | MD | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| SCSilbrico Corp/easton | Forks Township | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| SMSkyline Metals Llc/slag Processing Plt | Baden | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| SISolem Industries | Fairmount | GA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| SSSouth Shore Slag LLC - Contractor of Uss Gary Works (00121) | Gary | IN | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| SMStandard Mineral Company Incorporated | Robbins | NC | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| SIStein INC. | Decatur | AL | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| TITms International, LLC | Broadview Heights | OH | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| TUTrebol USA LLC | Andrews | SC | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| UUrbix | Mesa | AZ | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| UMU.s. Minerals (air) | La Cygne | KS | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| USUS Silica Millen Plant-sand Unloading Facility and Bagging Facility | Millen | GA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| VCVulcan Const Mat LP Anderson Quarry | Anderson | SC | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| VCVulcan Construction Material Limited Partnership Pacolet Quarry | Pacolet | SC | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| WSWindber Stone Llc/ogletown Quarry | Windber | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| AGAllied Graphite | Mesa | AZ | Nonmetallic Mineral Product Manufacturing327992 | 20-99 | ◐ LIKELY ACTIVE |
| BMBPI Minerals, New Castle Facility | New Castle | PA | Nonmetallic Mineral Product Manufacturing327992 | 20-99 | ◐ LIKELY ACTIVE |
| CRCimbar Resources Inc | Chatsworth | GA | Nonmetallic Mineral Product Manufacturing327992 | 20-99 | ◐ LIKELY ACTIVE |
| CCCORMETECH - Cleveland Manufacturing Facility | Cleveland | TN | Nonmetallic Mineral Product Manufacturing327992 | 100-499 | ◐ LIKELY ACTIVE |
| DMDicaPerl Minerals | Fallon | NV | Nonmetallic Mineral Product Manufacturing327992 | 20-99 | ◐ LIKELY ACTIVE |
| IIsolatek-Houston | Houston | TX | Nonmetallic Mineral Product Manufacturing327992 | 1-19 | ◐ LIKELY ACTIVE |
| IIIsolatek International- SBCA | San Bernardino | CA | Nonmetallic Mineral Product Manufacturing327992 | 1-19 | ◐ LIKELY ACTIVE |
| MMidlothian | Seven Fields | PA | Nonmetallic Mineral Product Manufacturing327992 | 20-99 | ◐ LIKELY ACTIVE |
| NINorthdown Industires - Phoenix | Phoenix | AZ | Nonmetallic Mineral Product Manufacturing327992 | 1-19 | ◐ LIKELY ACTIVE |
| OBOpta Birmingham Plant | Birmingham | AL | Nonmetallic Mineral Product Manufacturing327992 | 1-19 | ◐ LIKELY ACTIVE |
| OOPTA-Cortland | Cortland | OH | Nonmetallic Mineral Product Manufacturing327992 | 1-19 | ◐ LIKELY ACTIVE |
| OEOPTA East Chicago Plant | East Chicago | IN | Nonmetallic Mineral Product Manufacturing327992 | 1-19 | ◐ LIKELY ACTIVE |
| OOPTA-Warren | Warren | OH | Nonmetallic Mineral Product Manufacturing327992 | 1-19 | ◐ LIKELY ACTIVE |
| PVPolymer Valley Chemicals | Macon | GA | Nonmetallic Mineral Product Manufacturing327992 | 20-99 | ◐ LIKELY ACTIVE |
| PLPromising LLC | Lincoln | NE | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| PNPVP North Bloomfield | North Bloomfield | OH | Nonmetallic Mineral Product Manufacturing327992 | 20-99 | ◐ LIKELY ACTIVE |
| RMReed Minerals - Gallipolis | Chesire | OH | Nonmetallic Mineral Product Manufacturing327992 | 1-19 | ◐ LIKELY ACTIVE |
| RMReed Minerals, LLC - Houston | Houston | TX | Nonmetallic Mineral Product Manufacturing327992 | 1-19 | ◐ LIKELY ACTIVE |
| RMReed Minerals, LLC - LaCygne | LaCygne | KS | Nonmetallic Mineral Product Manufacturing327992 | 1-19 | ◐ LIKELY ACTIVE |
| RMReed Minerals, LLC - LaCygne | La Cygne | KS | Nonmetallic Mineral Product Manufacturing327992 | 1-19 | ◐ LIKELY ACTIVE |
| SVSpecialty Vermiculite Corp | Phoenix | AZ | Nonmetallic Mineral Product Manufacturing327992 | 1-19 | ◐ LIKELY ACTIVE |
Syrah Technologies | Vidalia, La. 70735 | LA | Nonmetallic Mineral Product Manufacturing327992 | 20-99 | ◐ LIKELY ACTIVE |
| TETherm-O-Rock East, Inc. | New Eagle | PA | Nonmetallic Mineral Product Manufacturing327992 | 20-99 | ◐ LIKELY ACTIVE |
| TSThe Schundler Company | Nahant | MA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |