| SDSouthwire Douglas Plant | Douglas | GA | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| SLSpartan Light Metal Products, L.l.c. | Mexico | MO | Primary Metal Manufacturing331523 | 100-499 | ◐ LIKELY ACTIVE |
| SMSpecial Metals Welding Products Company | Newton | NC | Primary Metal Manufacturing331491 | 20-99 | ◐ LIKELY ACTIVE |
| SISpokane Industries | Spokane | WA | Beverage and Tobacco Product Manufacturing312111 | 1-19 | ◐ LIKELY ACTIVE |
| SPSt Prod LLC Dba Wieland Small Tube Prod/altoona | Duncansville | PA | Primary Metal Manufacturing331318 | 100-499 | ◐ LIKELY ACTIVE |
| SESuperior Essex International | Brownwood | TX | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| SESuperior Essex International INC. | Hoisington | KS | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| SCSupreme Casting | Stevensville | MI | Primary Metal Manufacturing331313 | 20-99 | ◐ LIKELY ACTIVE |
| SCS.u.s Cast Products INC. | Logansport | IN | Primary Metal Manufacturing331523 | 20-99 | ◐ LIKELY ACTIVE |
| SGSuzuki Garphyttan | South Bend | IN | Primary Metal Manufacturing331222 | 20-99 | ◐ LIKELY ACTIVE |
| TPTalladega Pattern & Aluminum Works INC | Talladega | AL | Primary Metal Manufacturing331524 | 20-99 | ◐ LIKELY ACTIVE |
Team Industries - Detroit Lakes | Detroit Lakes | MN | Primary Metal Manufacturing331521 | 20-99 | ◐ LIKELY ACTIVE |
| TATennessee Aluminum Processors INC | Gadsden | AL | Primary Metal Manufacturing331314 | 20-99 | ◐ LIKELY ACTIVE |
| TIThermalex, INC | Montgomery | AL | Primary Metal Manufacturing331316 | 100-499 | ◐ LIKELY ACTIVE |
| TSThomas Steel Strip CORP | Warren | OH | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| TDTop Die Casting CO | South Beloit | IL | Primary Metal Manufacturing331521 | 100-499 | ◐ LIKELY ACTIVE |
| TCTorrance Casting INC | La Crosse | WI | Primary Metal Manufacturing331510 | 20-99 | ◐ LIKELY ACTIVE |
| TATpi Arcade, LLC | Arcade | NY | Primary Metal Manufacturing331523 | 20-99 | ◐ LIKELY ACTIVE |
| TLTri-cast LTD | Akron | OH | Primary Metal Manufacturing331313 | 20-99 | ◐ LIKELY ACTIVE |
Tri-star Metals LLC | Freeport | IL | Primary Metal Manufacturing331222 | 100-499 | ◐ LIKELY ACTIVE |
| TDTubacex Durant INC. | Durant | OK | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| TUTyler Union | Anniston | AL | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| TUTyler Union - Oxford LLC | Anniston | AL | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| USUlbrich Specialty Strip Mill | Wallingford | CT | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| UWUnified Wire and Cable, INC. | Dekalb | IL | Primary Metal Manufacturing331222 | 20-99 | ◐ LIKELY ACTIVE |
| UEUnion Elec Steel Corp/greengarden Ave | Erie | PA | Primary Metal Manufacturing331110 | 1-19 | ◐ LIKELY ACTIVE |
| URUnited Rolls INC | Canton | OH | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| VTVallourec Tube-alloy, LLC | Houma | LA | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| VMVdm Metals USA LLC | Florham Park | NJ | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| VMVdm Metals Usa, LLC | Reno | NV | Primary Metal Manufacturing331111 | 100-499 | ◐ LIKELY ACTIVE |
| VFVermont Foundry CO | Vermont | IL | Primary Metal Manufacturing331522 | 20-99 | ◐ LIKELY ACTIVE |
| VCVictaulic Co/forks Facility | Easton | PA | Primary Metal Manufacturing331511 | 500+ | ◐ LIKELY ACTIVE |
| VMVista Metals CORP | Fontana | CA | Primary Metal Manufacturing331314 | 100-499 | ◐ LIKELY ACTIVE |
| VOVulcraft of New York INC | Chemung | NY | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
Waupaca Foundry INC - Plant 1 | Waupaca | WI | Primary Metal Manufacturing331510 | 500+ | ◐ LIKELY ACTIVE |
Waupaca Foundry INC -plant 4 | Marinette | WI | Primary Metal Manufacturing331510 | 500+ | ◐ LIKELY ACTIVE |
Webco Industries INC Kellyville Specialty Tube | Kellyville | OK | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
Webco Industries, INC. Ok Dist. Div | Tulsa | OK | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| WTWelded Tube USA INC | Lackawanna | NY | Primary Metal Manufacturing331111 | 100-499 | ◐ LIKELY ACTIVE |
| WTWheatland Tube CO - Chicago Div | Chicago | IL | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| WMWieland Metals INC | Wheeling | IL | Primary Metal Manufacturing331420 | 20-99 | ◐ LIKELY ACTIVE |
| WIWillman Industries INC | Cedar Grove | WI | Primary Metal Manufacturing331510 | 100-499 | ◐ LIKELY ACTIVE |
| WWWireco World Group Sedalia | Sedalia | MO | Primary Metal Manufacturing331222 | 100-499 | ◐ LIKELY ACTIVE |
| WCWorthington Cylinder Corporation | Westerville | OH | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| WSWorthington Specialty Processing | Jackson | MI | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| WSWorthington Steel (0326000076) | Delta | OH | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| WSWorthington Steel CO | Columbus | OH | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| WSWorthington Steel Company (1409070344) | Monroe | OH | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| WCWyman-gordon Company Brighton Operations | Brighton | MI | Primary Metal Manufacturing331492 | 100-499 | ◐ LIKELY ACTIVE |
| ZMZimmerman Metals INC | Denver | CO | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |