| OBOwens Brockway Glass Container Plt 18 | Brockway | PA | Nonmetallic Mineral Product Manufacturing327213 | — | ◐ LIKELY ACTIVE |
| PPPa Perlite CORP | Bethlehem | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| QCQuikrete CO Inc/harrisburg Plt | Paxinos | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| RCRc Concrete | Burgettstown | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| RPResco Products Inc/new Castle Plant | New Castle | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| RCRiverside Const Materials/bristol Twp | Bristol | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| RRoyersford | Royersford | PA | Nonmetallic Mineral Product Manufacturing327910 | 20-99 | ◐ LIKELY ACTIVE |
| RHRwe Holding CO - West Pittsburg Plant | New Castle | PA | Nonmetallic Mineral Product Manufacturing327999 | — | ◐ LIKELY ACTIVE |
| SCSaint-Gobain Ceramics | Olyphant | PA | Nonmetallic Mineral Product Manufacturing327910 | 20-99 | ◐ LIKELY ACTIVE |
| SCScranton Craftsmen Incorporated | Throop | PA | Nonmetallic Mineral Product Manufacturing327390 | 20-99 | ◐ LIKELY ACTIVE |
| SCSilvi Concrete Morrisville Plt | Fairless Hills | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| SMSkyline Metals Llc/slag Processing Plt | Baden | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| SCStone & CO INC Canonsburg Plt | Canonsburg | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| TBThe Bauer Company INC. | Worthington | PA | Nonmetallic Mineral Product Manufacturing327331 | 20-99 | ◐ LIKELY ACTIVE |
| TFThe Fredericks Company, INC. | Huntingdon Valley | PA | Nonmetallic Mineral Product Manufacturing327215 | — | ◐ LIKELY ACTIVE |
| TATYK America | Clairton | PA | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| UCUniontown Concrete Plt | Hopwood | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| UPUnited Plate Glass Company (Butler) | Butler | PA | Nonmetallic Mineral Product Manufacturing327215 | 100-499 | ◐ LIKELY ACTIVE |
| UGUS Gypsum Washingtonville | Danville | PA | Nonmetallic Mineral Product Manufacturing327420 | 100-499 | ◐ LIKELY ACTIVE |
| URUS Resistor Inc/st Marys | Saint Marys | PA | Nonmetallic Mineral Product Manufacturing327110 | — | ◐ LIKELY ACTIVE |
| VPVesuvius Penn Wampum/lawrence | Wampum | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| VMVitro Meadville Flat Glass Meadville Plt/crawford | Meadville | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| WSWindber Stone Llc/ogletown Quarry | Windber | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| WKWorld Kitchen LLC - Charleroi Plant | Charleroi | PA | Nonmetallic Mineral Product Manufacturing327212 | — | ◐ LIKELY ACTIVE |
| YBYork Building Products CO Inc/new Holland | New Holland | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| ACAnchor Concrete Fredonia Plt | Fredonia | PA | Nonmetallic Mineral Product Manufacturing327332 | — | ◐ LIKELY ACTIVE |
| BIBbgy INC Dba Boger Concrete Company | Annville | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| BIBlend-pro INC | Allentown | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| BMBnz Materials Inc/zelienople | Zelienople | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| CICampania Intl Inc/pennsburg | Pennsburg | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◐ LIKELY ACTIVE |
| CCCentre Concrete CO State College Plt | State College | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| CCCentre Concrete State College Plt | State College | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| CLCon Lime Inc/bellefonte | Bellefonte | PA | Nonmetallic Mineral Product Manufacturing327410 | — | ◐ LIKELY ACTIVE |
| DCDaniels Concrete Batch Plt | Greensburg | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| DSDoolittle Stone Saw Shop | Montrose | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◐ LIKELY ACTIVE |
| GHGeneration Holdings Lp/colver Processing Fac | Colver | PA | Nonmetallic Mineral Product Manufacturing327410 | — | ◐ LIKELY ACTIVE |
| HPHanover Prest Paving Brick Plt | Hanover | PA | Petroleum and Coal Products Manufacturing324121 | — | ◐ LIKELY ACTIVE |
| JMJdm Materials Norristown Batch Plt | Norristown | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| KQKutztown Quarry | Kutztown | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| LCLafarge CORP Duquesne_plant | Pittsburgh | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| MSMcclain Stone CO. INC. Brooklyn Saw Shop | Kingsley | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◐ LIKELY ACTIVE |
| MPMonarch Products Company INC - Strinestown | York | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◐ LIKELY ACTIVE |
| NFNatl Fuel Gas Supply/lamont Comp Sta | Kane | PA | Nonmetallic Mineral Product Manufacturing327400 | — | ◐ LIKELY ACTIVE |
| NCNitterhouse Concrete Prod | Chambersburg | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◐ LIKELY ACTIVE |
| OBOwens Brockway Glass Container Inc/plt 7 | Brockport | PA | Nonmetallic Mineral Product Manufacturing327213 | — | ◐ LIKELY ACTIVE |
| PSPennsy Supply Inc/landisville Quarry | Landisville | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◐ LIKELY ACTIVE |
| PHPinnacle Health/harrisburg Hosp | Harrisburg | PA | Nonmetallic Mineral Product Manufacturing327331 | — | ◐ LIKELY ACTIVE |
| PIPureon Inc/fayette Business Pk | Smithfield | PA | Nonmetallic Mineral Product Manufacturing327910 | — | ◐ LIKELY ACTIVE |
| RRRmci Refractory/west Grove | West Grove | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| RQRohrers Quarry/lititz | Lititz | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◐ LIKELY ACTIVE |