| DMDent Mfg CO Inc/northampton | Northampton | PA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| DCDomestic Casting CO LLC | Shippensburg | PA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| DIDynamet INC N Main St Fac | Washington | PA | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
| EIEafco INC | Boyertown | PA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| EBEagle Brass Company | Leesport | PA | Primary Metal Manufacturing331421 | — | ◇ UNVERIFIED |
| EFEffort Foundry Inc/bath | Bath | PA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| ESEsab Site at Sandvik Smt | Clarks Summit | PA | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| ETExide Technologies - Reading Smelter Div | Reading | PA | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| ETExide Technologies Site | Laureldale | PA | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| FHFairless Hills Steam Generating Sta | Fairless Hills | PA | Primary Metal Manufacturing331111 | — | ◇ UNVERIFIED |
| FSFranklin Smelting & Refining CORP | Philadelphia | PA | Primary Metal Manufacturing331000 | — | ◇ UNVERIFIED |
| FAFreedom Alloys INC | Royersford | PA | Primary Metal Manufacturing331420 | — | ◇ UNVERIFIED |
| GWGamesa Wind/fairless Hills Wind Turbine Nacelle Mfg | Fairless Hills | PA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| GSGkn Sinter Metals - Emporium Boro Plant 2 | Emporium | PA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| HLHanover Lantern Inc/kindig Ln | Hanover | PA | Primary Metal Manufacturing331316 | — | ◇ UNVERIFIED |
| HCHazleton Casting CO | Hazleton | PA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| HCHazleton Casting CO Llc/hazleton | Hazleton | PA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| HPHi-tech Plating | Erie | PA | Primary Metal Manufacturing331112 | — | ◇ UNVERIFIED |
| HZHorsehead Zinc Powders LLC | Monaca | PA | Primary Metal Manufacturing331410 | — | ◇ UNVERIFIED |
| HPHyde Park Foundry | Hyde Park | PA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| JSJ&l Structural Aliquippa Div | Aliquippa | PA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| JMJohn Maneely CO Wheatland Tube Div - Mill Street | Sharon | PA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| KIKennametal Inc/colerain Twp Bedford Cast | Bedford | PA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| KIKennametal INC - Kingston Plant | Latrobe | PA | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
| KRKeystone Resources | Mars | PA | Primary Metal Manufacturing331000 | — | ◇ UNVERIFIED |
 Koehler Bright Star/hanover Twp | Wilkes Barre | PA | Primary Metal Manufacturing331421 | — | ◇ UNVERIFIED |
| MUMarcegaglia USA | Greenville | PA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| MRMaterials Recovery Technologies | York | PA | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| MBMetal Bank of America | Philadelphia | PA | Primary Metal Manufacturing331420 | — | ◇ UNVERIFIED |
| MSMetaldyne Sintered Ridgway LLC | Emporium | PA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| MEMetalor Electrotechnics USA Corp/plt 5 | Delmont | PA | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
| MRMiltec Resources Uss Edgar Thomson Works | Braddock | PA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| MZMitsui Zinc Powder | Monaca | PA | Primary Metal Manufacturing331410 | — | ◇ UNVERIFIED |
| NCNew Castle Foundry/new Castle | New Castle | PA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| NMNgk Metals CORP | Reading | PA | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
| NANorth American Steel & Wire INC | Butler | PA | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| OGOz Gedney Llc/shoemakersville Plt | Shoemakersville | PA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| PCPenncast Corp/marietta | Marietta | PA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| PSPennsylvania Steel Fndy & Machine CO | Hamburg | PA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| PSPhoenix Svc LLC - Johnstown Slag Prep Facility | Johnstown | PA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| PCPrecision Cut Ind - 60 Ram Drive | Hanover | PA | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| PTPrecision Tube CO / North Wales | North Wales | PA | Primary Metal Manufacturing331318 | — | ◇ UNVERIFIED |
| PBPrice Battery Lead Smelter | Hamburg | PA | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| QAQuaker Alloy Inc/myerstown | Myerstown | PA | Primary Metal Manufacturing331311 | — | ◇ UNVERIFIED |
| QIQuality Investment Castings INC | Blandon | PA | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| RAReal Alloy Recycling Inc/lebanon | Lebanon | PA | Primary Metal Manufacturing331314 | — | ◇ UNVERIFIED |
| RARegen Alum Llc/yoe | Yoe | PA | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| RPRidgway Powdered Metals | Ridgway | PA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| RARose Acquisition Co., LLC | Reading | PA | Primary Metal Manufacturing331111 | — | ◇ UNVERIFIED |
| SCSci Cast Intl Mfg | Bechtelsville | PA | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
