| HCHarsco Corporation | Pueblo | CO | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| HIHartman Industries Dba Commercial Casting Company | Fontana | CA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| HQHigh Quality Alloys | Santa Fe Springs | CA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| JIJm Infocus Maching INC | Garden Grove | CA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| JFJohnstown Foundry Castings, INC. | Johnstown | PA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| KFKraton Fabricating | Canonsburg | PA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| KFKulp Foundry Incorporated | East Stroudsburg | PA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| LMLortz Manufacturing Company | Laguna Beach | CA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| MFMansfield Foundry | Mansfield | MO | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| MRMerdian Rail Products CORP | Cicero | IL | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| MIMetaltek International, Sandusky International Division (0322020117) | Sandusky | OH | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| MMMicro Metals | Richmond | CA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| MFMike's Foundry INC. | Ravenna | MI | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| MUMimecri Usa, LLC | Thomasville | GA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| MPMississippi Precision Casting Parts, LLC | Columbus | MS | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| MNM & N Alloy Cast Products, INC. | Sylacauga | AL | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| MMMonett Metals Inc-monett Steel Castings | Monett | MO | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| NFNational Foundry and Mfg. INC. | Crane | TX | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| NFNew Found Metals INC | Port Townsend | WA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| NSNorthern Steel Castings INC | Wisconsin Rapids | WI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| PSPacific Steel Casting Company | Berkeley | CA | Primary Metal Manufacturing331513 | — | ▲ REPORTED CLOSED |
| PSPacific Steel Casting Co-plant | Berkeley | CA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| PSPacific Steel Casting Co-plant #1 | Berkeley | CA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| PSPacific Steel Casting Co-plant #3 | Berkeley | CA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| PIPatsy Iron Works INC. | Elmsford | NY | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| PTPolich Tallix INC | Rock Tavern | NY | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| PCPrecision Cast Products | Oakland | CA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| PMPrenatt Manufacturing, INC. | Pleasantville | PA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
 P.t. Armor, INC. | Fairfax | VA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| QFQuantum Fuel Systems Technologies INC | Lake Forest | CA | Primary Metal Manufacturing331513 | — | ▲ REPORTED CLOSED |
| RPR2 Properties, LLC | Waukesha | WI | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| RCRainbow Custom Woodworking | Alexandria | VA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| RFRamirez Foundry | El Cajon | CA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| RDRangers Die Casting CO | Lynwood | CA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| RSReliable Steel Building Products INC | South Gate | CA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| RHR-hive Holdings, LLC | Kenosha | WI | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| RIRoper Industries INC | Denver | CO | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| RSRothbury Steel INC | Rothbury | MI | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| SSSivyer Steel Castings LLC | Bettendorf | IA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| SSSivyer Steel Corporation | Bettendorf | IA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| SCSmith Castings INC | Kingsford | MI | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| SCSmith Castings LLC | Kingsford | MI | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| SBSouth Bay Foundry INC | Santee | CA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| SEStandard Electric Steel Casting Co-springfield | Springfield | MO | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
 Strong Structural Steel, LTD | Pharr | TX | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| TCTalladega Castings & Machine CO INC | Talladega | AL | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| TLTmk-ipsco, LLC. | Ambridge | PA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| UOUsdol Osha Lubbock | Crane | TX | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| VSVertical Seal Company | Pleasantville | PA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| VCViking Chain | Seattle | WA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
