| PSPenn State Special Metals LLC | Koppel | PA | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| PCPerformance Castings, LLC | Erie | PA | Primary Metal Manufacturing331511 | 1-19 | ◐ LIKELY ACTIVE |
| PPPiad Precision Casting/hempfield Twp Plt | Greensburg | PA | Primary Metal Manufacturing331420 | — | ◐ LIKELY ACTIVE |
| PIPrl Ind Inc/cornwall | Cornwall | PA | Primary Metal Manufacturing331513 | — | ◐ LIKELY ACTIVE |
| PIPrl Ind Inc/lebanon | Lebanon | PA | Primary Metal Manufacturing331513 | — | ◐ LIKELY ACTIVE |
| RHR H Sheppard CO INC | Hanover | PA | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| SASa Alloys | Columbia | PA | Primary Metal Manufacturing331314 | — | ◐ LIKELY ACTIVE |
| SASignature Alum INC - Greenville Facility | Greenville | PA | Primary Metal Manufacturing331314 | — | ◐ LIKELY ACTIVE |
| TTTapco Tube Co/meadville | Meadville | PA | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| TEThe Esab Group, INC. | Hanover | PA | Primary Metal Manufacturing331491 | — | ◐ LIKELY ACTIVE |
| TMTitanium Metals CORP Dba Timet | Morgantown | PA | Primary Metal Manufacturing331410 | — | ◐ LIKELY ACTIVE |
| UCUnicast Co/boyertown | Boyertown | PA | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| UFUrick Foundry Co/erie | Erie | PA | Primary Metal Manufacturing331221 | — | ◐ LIKELY ACTIVE |
| UCUss Corp/edgar Thomson Works | Braddock | PA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| UMUss Mon Valley Works - Irvin Plant | West Mifflin | PA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| USUS Steel Fairless Hills Works | Fairless Hills | PA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| VCVictaulic Company/alburtis Facility | Alburtis | PA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| VCVorteq Coil Finishers Llc/allentown | Allentown | PA | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| WCWeatherly Casting & Mach CO Llc/weatherly Plt | Weatherly | PA | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| WSWhemco Steel Castings Inc/west Homestead | Homestead | PA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| ADAiro Die Casting INC | Loyalhanna | PA | Primary Metal Manufacturing331521 | — | ◐ LIKELY ACTIVE |
| ALAllegheny Ludlum CORP | Vandergrift | PA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| AAAlum Alloys Foundry | Sinking Spring | PA | Primary Metal Manufacturing331524 | — | ◐ LIKELY ACTIVE |
| APArcelormittal Plate LLC Conshohocken Facility | Conshohocken | PA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| BMBerry Metal CO | Zelienople | PA | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| BRBlue Ridge Pressure Castings | Lehighton | PA | Primary Metal Manufacturing331523 | — | ◐ LIKELY ACTIVE |
| BKBrey & Krause Mfg. CO. | Bethlehem | PA | Primary Metal Manufacturing331522 | 20-99 | ◐ LIKELY ACTIVE |
| CSCronimet Specialty Metals USA INC. | Wheatland | PA | Primary Metal Manufacturing331529 | — | ◐ LIKELY ACTIVE |
| DPDura-bond Pipe 1 LLC | Mckeesport | PA | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| DIDynamet Incorporated | Washington | PA | Primary Metal Manufacturing331221 | — | ◐ LIKELY ACTIVE |
| EEEureka Elec Prod/north East | North East | PA | Primary Metal Manufacturing331522 | — | ◐ LIKELY ACTIVE |
| HFHodge Foundry/greenville | Greenville | PA | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| IIIwm International, LLC - Wire Facility | York | PA | Primary Metal Manufacturing331222 | — | ◐ LIKELY ACTIVE |
| JMJadco Mfg/harmony | Harmony | PA | Primary Metal Manufacturing331222 | 20-99 | ◐ LIKELY ACTIVE |
| JSJohnstown Specialty Casting/johnstown Foundry | Johnstown | PA | Primary Metal Manufacturing331511 | 1-19 | ◐ LIKELY ACTIVE |
| KMKalas Manufacturing INC Plant 1 | Denver | PA | Primary Metal Manufacturing331420 | — | ◐ LIKELY ACTIVE |
| KMKalas Manufacturing Plant 2 | Denver | PA | Primary Metal Manufacturing331420 | — | ◐ LIKELY ACTIVE |
| KIKymera Intl Llc/croydon | Croydon | PA | Primary Metal Manufacturing331492 | — | ◐ LIKELY ACTIVE |
| MIMcc Intl INC | Cecil | PA | Primary Metal Manufacturing331523 | — | ◐ LIKELY ACTIVE |
| MTMcconway & Torley LLC - Steel Castings Mfg Plant | Pittsburgh | PA | Primary Metal Manufacturing331513 | — | ◐ LIKELY ACTIVE |
| NMNf & M Intl Monaca Plt | Monaca | PA | Primary Metal Manufacturing331491 | — | ◐ LIKELY ACTIVE |
| PMPrime Metals Acquisition LLC - Lucerne Mines | Lucernemines | PA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| RSRh Sheppard Foundry Bendix Hanover | Hanover | PA | Primary Metal Manufacturing331513 | — | ◐ LIKELY ACTIVE |
| SMSandvik Materials Technology | Clarks Summit | PA | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| SCShasta Capt Haz Waste Operation | Aliquippa | PA | Primary Metal Manufacturing331210 | 1-19 | ◐ LIKELY ACTIVE |
Skyline Steel | Camp Hill | PA | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
Superior Forge & Steel Corporation (pittsburgh, Pa) | Pittsburgh | PA | Primary Metal Manufacturing331513 | — | ◐ LIKELY ACTIVE |
| TBThalheimer Brothers LLC | Philadelphia | PA | Primary Metal Manufacturing331315 | 20-99 | ◐ LIKELY ACTIVE |
| TTThe Techs - Nextech Plant | Turtle Creek | PA | Primary Metal Manufacturing331221 | — | ◐ LIKELY ACTIVE |
| TCTube City Ims/slag Processing | Braddock | PA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |