| NENew Enterprise Stone & Lime CO Inc/fairfield | Cumberland | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| NENew Enterprise Stone & Lime CO Inc/gettysburg | Gettysburg | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| NENew Enterprise Stone & Lime CO Inc/maxatawny | Kutztown | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| NINicolet Ind/ambler | Ambler | PA | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| NNNortheast Nanticoke Facility | Nanticoke | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| OAOldcastle Apg Natl I/emigsville | Emigsville | PA | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| OPOldcastle Precast | Easton | PA | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| OPOldcastle Precast INC | Morrisville | PA | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| OTO Tex Pumping Fenelton | Fenelton | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| OGOwens-brockway Glass/clarion | Clarion | PA | Nonmetallic Mineral Product Manufacturing327213 | — | ◇ UNVERIFIED |
| PAPcr Aquisitions Dba Campania Intl Inc/quakertown | Quakertown | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| PWPenn-mar Wilbert | York | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| PRPenn Rock Aggregates | North Versailles | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| PSPennsy Supply INC Paxton St Ready Mix | Harrisburg | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| PSPennsy Supply Summit Sta/quarry Wayne Twp | Summit Station | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| PCPfaltzgraff CO - Thomasville Facility | Thomasville | PA | Nonmetallic Mineral Product Manufacturing327112 | — | ◇ UNVERIFIED |
| PCPgh Corning Corp/port Allegany | Port Allegany | PA | Nonmetallic Mineral Product Manufacturing327100 | — | ◇ UNVERIFIED |
| PFPgh Flexicore/donora Plt | Donora | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| PGPgh Glass Works | Creighton | PA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| PGPgh Glass Works Llc/works 27 Tipton | Tipton | PA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| PFPittston Facility | Pittston | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| PMPremier Magnesia LLC Aspers Plant | Aspers | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| PCPyrotek Carlisle Nonclay Refractory Mfg | Carlisle | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| PIPyrotek INC | Carlisle | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| SCSaint-gobain Ceramics/latrobe Plt | Latrobe | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| SMSchaffner Mfg CO INC | Pittsburgh | PA | Nonmetallic Mineral Product Manufacturing327910 | — | ◇ UNVERIFIED |
| STSeparation Technologies LLC | York Haven | PA | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| SCSharon Concrete Batch Plt | Sharon | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SSSheridan Supply CO - Newmanstown | Newmanstown | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| SDShermans Dale Station | Shermans Dale | PA | Nonmetallic Mineral Product Manufacturing327100 | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix Concrete/shenango Twp | W Middlesex | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SCSpang & Co/magnetics Div | Butler | PA | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
| SISpinworks International CORP | North East | PA | Nonmetallic Mineral Product Manufacturing327110 | — | ◇ UNVERIFIED |
| SCStone & CO Masontown Plt | Masontown | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SDStone Depot/opern Burning/hilltown Twp | Perkasie | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| SWSuperior Well Svc Blacklick Fac | Black Lick | PA | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| TBTecho Bloc Corp/plainfield Twp | Pen Argyl | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| TCTemporary Concrete Batch Plt | Midland Borough | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| THTerre Hill Concrete Prod Plant 2 | East Earl | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| TPTetlp - Per. Suct. Loop Terminal P-j | East Waterford | PA | Nonmetallic Mineral Product Manufacturing327000 | — | ◇ UNVERIFIED |
| TOTherm O Rock East Inc/donora Plt 2 | Donora | PA | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| TITms Intl Llc/park Hill Slag Bank | Johnstown | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| TITrenwyth Industries - Trendstone Plant | Emigsville | PA | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| TGTrulite Glass & Aluminum Solutions | Cheswick | PA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| USUnited Stone Veneer Stormwater | Middleburg | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| VFVitro Flat Glass, LLC / Glass Business & Discovery Center | Pittsburgh | PA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| WDWaylite Div Ims/bethlehem | Bethlehem | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| WCWolyniec Const INC Stormwater | Williamsport | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| YBYork Bldg Prod Loucks Mill Road Block Plant | York | PA | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| YBYork Building Products - New Holland Plant | New Holland | PA | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |