| PPPiqua Power Plant | Piqua | OH | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| RARoss Aluminum Castings LLC | Sidney | OH | Primary Metal Manufacturing331523 | — | ◐ LIKELY ACTIVE |
| SCSix C Fabrication, INC. (1667070022) | Rootstown | OH | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| SMSkye Metal Recovery INC (0684005004) | Marietta | OH | Primary Metal Manufacturing331492 | — | ◐ LIKELY ACTIVE |
| TSThomas Steel Strip Corporation Tata Steel Plating | Warren | OH | Primary Metal Manufacturing331221 | — | ◐ LIKELY ACTIVE |
| USUS Steel - Lorain Tubular Operations | Lorain | OH | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| WSWarren Steel Holdings LLC | Warren | OH | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| ABA & B Foundry & Machining | Franklin | OH | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| ASAk Steel Corporation - Steubenville Intake Pumphouse | Steubenville | OH | Primary Metal Manufacturing331111 | — | ◇ UNVERIFIED |
| ASAleris Specialty Products INC | Cleveland | OH | Primary Metal Manufacturing331314 | — | ◇ UNVERIFIED |
| ACAlliance Casting CO. LLC (1576010014) | Alliance | OH | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| AAAmcast Automotive Wapakoneta Plant | Wapakoneta | OH | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| APAmerican Processing LLC | Cleveland | OH | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| AMArcelor Mittal Marion | Marion | OH | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| AWArcelormittal Warren | Warren | OH | Primary Metal Manufacturing331111 | — | ◇ UNVERIFIED |
| APAvalon Precision Casting Company LLC | Cleveland | OH | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| BSBanner Service Corporation | Strongsville | OH | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
| BSBarberton Steel Industries, INC. | Barberton | OH | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| BTBeco Tek Mfg INC | Lorain | OH | Primary Metal Manufacturing331522 | — | ◇ UNVERIFIED |
| BSBelmont Solids Control | Campbell | OH | Primary Metal Manufacturing331316 | — | ◇ UNVERIFIED |
| CMCarbide Metals INC | Youngstown | OH | Primary Metal Manufacturing331410 | — | ◇ UNVERIFIED |
| CTCast-fab Technologies, INC. | Cincinnati | OH | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CUCastings USA INC | New Philadelphia | OH | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CMCast Metals Technology | Union | OH | Primary Metal Manufacturing331525 | — | ◇ UNVERIFIED |
| CACentral Aluminum Company | Columbus | OH | Primary Metal Manufacturing331316 | — | ◇ UNVERIFIED |
| CACertified Alloys INC | Maple Heights | OH | Primary Metal Manufacturing331000 | — | ◇ UNVERIFIED |
| CSCharter Steel Cleveland INC (1318007658) | Cleveland | OH | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| CTCleveland-cliffs Tubular Components | Walbridge | OH | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| CFColumbiana Foundry CO | Columbiana | OH | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| CSColumbus Steel Castings | Columbus | OH | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| CWCostco Wholesale - Columbus | Columbus | OH | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| DEDefiance Energy | Defiance | OH | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| DIDietrich Ind | Hicksville | OH | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| EFEpcor Foundries | Cincinnati | OH | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| EGEsab Group INC | Ashtabula | OH | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| FCFlowserve Corporation * | Dayton | OH | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| FFFoote Foundry CO. INC. (0142000119) | Fredericktown | OH | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| FMFrancis Manufacturing Co-francis Manufacturing CO | Russia | OH | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| FCFulton County Processing LTD a Heidtman Steel CO | Delta | OH | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| FFFunk Finecast INC | Columbus | OH | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| GAG a Avril CO - White Metal Prods Div | Cincinnati | OH | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| GAGarfield Alloys INC | Garfield Heights | OH | Primary Metal Manufacturing331528 | — | ◇ UNVERIFIED |
| GAG-cor Automotive CORP | Columbus | OH | Primary Metal Manufacturing331314 | — | ◇ UNVERIFIED |
| GDGe Dover Products Plant | Dover | OH | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
| GCGeneral Casting CO Poulton Div | Columbus | OH | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| GEGeneral Electric, Tungsten Products Plant | Euclid | OH | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
 Golden Aluminum Extrusions Warren, LLC | Warren | OH | Primary Metal Manufacturing331316 | — | ◇ UNVERIFIED |
| GEGould Electronics INC. | Mcconnelsville | OH | Primary Metal Manufacturing331421 | — | ◇ UNVERIFIED |
| GLGreene Lyon Metals LLC | Jackson | OH | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| GSG & S Titanium INC | Wooster | OH | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
