| BMBull Moose Tube | Gerald | MO | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| MMMonett Metals INC | Monett | MO | Primary Metal Manufacturing331513 | 20-99 | ◐ LIKELY ACTIVE |
| MIMost INC | Troy | MO | Primary Metal Manufacturing331314 | 20-99 | ◐ LIKELY ACTIVE |
| OFO'hare Foundry Corporation | Maplewood | MO | Primary Metal Manufacturing331523 | 20-99 | ◐ LIKELY ACTIVE |
| PAPermalok - a Northwest Pipe CO | Saint Louis | MO | Primary Metal Manufacturing331210 | 1-19 | ◐ LIKELY ACTIVE |
| RARti Advanced Forming INC | Washington | MO | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| SLSpartan Light Metal Products, L.l.c. | Mexico | MO | Primary Metal Manufacturing331523 | 100-499 | ◐ LIKELY ACTIVE |
| WWWireco World Group Sedalia | Sedalia | MO | Primary Metal Manufacturing331222 | 100-499 | ◐ LIKELY ACTIVE |
| AMAlubar Metals Missouri LLC | Marston | MO | Primary Metal Manufacturing331313 | 100-499 | ◐ LIKELY ACTIVE |
| AFAluminum Finishers LLC - Granby | Granby | MO | Primary Metal Manufacturing331521 | — | ◐ LIKELY ACTIVE |
| CCCerro Copper Casting | Mexico | MO | Primary Metal Manufacturing331525 | — | ◐ LIKELY ACTIVE |
| CFCerro Flow Products LLC Shelbina | Shelbina | MO | Primary Metal Manufacturing331420 | — | ◐ LIKELY ACTIVE |
| DIDelong's Incorporated | Sedalia | MO | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| DRDoe Run Company-buick Mine & Mill | Boss | MO | Primary Metal Manufacturing331492 | — | ◐ LIKELY ACTIVE |
| ECEfco Corporation | Monett | MO | Primary Metal Manufacturing331318 | — | ◐ LIKELY ACTIVE |
| GEGateway Extrusions | Union | MO | Primary Metal Manufacturing331316 | 100-499 | ◐ LIKELY ACTIVE |
| IWInsteel Wire Products | Saint Joseph | MO | Primary Metal Manufacturing331222 | 20-99 | ◐ LIKELY ACTIVE |
| KMKoken Manufacturing CO INC | Saint Louis | MO | Primary Metal Manufacturing331314 | 20-99 | ◐ LIKELY ACTIVE |
| LCLakeside Casting Solutions | Monroe City | MO | Primary Metal Manufacturing331523 | 20-99 | ◐ LIKELY ACTIVE |
Leggett & Platt-wire Mill - Carthage Central Ave | Carthage | MO | Primary Metal Manufacturing331222 | — | ◐ LIKELY ACTIVE |
| LNLenco, Nlc INC. | Jackson | MO | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| NINucor-lmp, INC | Maryville | MO | Primary Metal Manufacturing331221 | — | ◐ LIKELY ACTIVE |
| RSRmf Steel Products | Grandview | MO | Primary Metal Manufacturing331513 | 20-99 | ◐ LIKELY ACTIVE |
| SMSchuylkill Metals Division of Exide CORP | Forest City | MO | Primary Metal Manufacturing331314 | — | ◐ LIKELY ACTIVE |
| SSStahl Specialty Company - Kingsville | Kingsville | MO | Primary Metal Manufacturing331521 | — | ◐ LIKELY ACTIVE |
| SKStryten Kcmo LLC | Kansas City | MO | Primary Metal Manufacturing331491 | — | ◐ LIKELY ACTIVE |
| TDThe Doe Run Company Buick Resource Recycling Facility | Boss | MO | Primary Metal Manufacturing331410 | — | ◐ LIKELY ACTIVE |
| ATAero Transportation Products INC Independence Plant | Independence | MO | Primary Metal Manufacturing331316 | — | ◐ LIKELY ACTIVE |
| CCConnector Castings | Saint Louis | MO | Primary Metal Manufacturing331522 | — | ◐ LIKELY ACTIVE |
| PCPrysmian Cables and Systems Usa, LLC | Sedalia | MO | Primary Metal Manufacturing331313 | — | ◐ LIKELY ACTIVE |
| WRWire Rope Corporation of America-chillicothe Plant | Chillicothe | MO | Primary Metal Manufacturing331222 | — | ◐ LIKELY ACTIVE |
| AWAlan Wire CO | Sikeston | MO | Primary Metal Manufacturing331420 | — | ◐ LIKELY ACTIVE |
| CBClay & Bailey Mfg Company | Kansas City | MO | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| CPCoatings Plus, INC | Fenton | MO | Primary Metal Manufacturing331524 | — | ◐ LIKELY ACTIVE |
| DSDidion & Sons Foundry CO | Saint Peters | MO | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| FCForest City Facility LLC | Forest City | MO | Primary Metal Manufacturing331492 | 20-99 | ◐ LIKELY ACTIVE |
| GIGrossman Iron & Steel CO | Saint Louis | MO | Primary Metal Manufacturing331419 | — | ◐ LIKELY ACTIVE |
| HFHurtt Fabricating Corp | Marceline | MO | Primary Metal Manufacturing331111 | 20-99 | ◐ LIKELY ACTIVE |
| LPLeggett & Platt Carthage Spring | Carthage | MO | Primary Metal Manufacturing331222 | — | ◐ LIKELY ACTIVE |
| LLoxcreen | Hayti | MO | Primary Metal Manufacturing331314 | — | ◐ LIKELY ACTIVE |
| M7Magnitude 7 Metals LLC | Marston | MO | Primary Metal Manufacturing331312 | — | ◐ LIKELY ACTIVE |
| MRMartinrea Riverside LLC | Riverside | MO | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| NSNucor Steel Sedalia, LLC 2023 | Sedalia | MO | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| RCRoss Custom Properties | Kansas City | MO | Primary Metal Manufacturing331111 | — | ◐ LIKELY ACTIVE |
| SLSpartan Light Metal Products | Hannibal | MO | Primary Metal Manufacturing331316 | — | ◐ LIKELY ACTIVE |
| SSStahl Specialty Company | Kingsville | MO | Primary Metal Manufacturing331521 | 100-499 | ◐ LIKELY ACTIVE |
| TDThe Doe Run Company | Boss | MO | Primary Metal Manufacturing331492 | 100-499 | ◐ LIKELY ACTIVE |
| TPTrinity Products, LLC | O Fallon | MO | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| USU S Granules Corporation | Henrietta | MO | Primary Metal Manufacturing331314 | — | ◐ LIKELY ACTIVE |
| WTWieland Thermal Solutions | Cuba | MO | Primary Metal Manufacturing331420 | 20-99 | ◐ LIKELY ACTIVE |