| SSSmi Steel LLC | Birmingham | AL | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| SDSteel Dynamics Incorporated | Butler | IN | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| SDSteel Dynamics Southwest - Sinton Division | Sinton | TX | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| SDSteel Dynamics Structural | Columbia City | IN | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| SISwva INC | Huntington | WV | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| TCTechalloy CO INC | Union | IL | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| TITesla, INC. | Fremont | CA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| TFTrinity Fabricators INC | Green Cove Springs | FL | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| UEUnion Electric Steel Corporation | Valparaiso | IN | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| USUnited States Steel Corporationfairfield Pipe Mil | Fairfield | AL | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| UPUS Pipe & Foundry CO | Bessemer | AL | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| UCUss Corp/edgar Thomson Works | Braddock | PA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| UMUss Mon Valley Works - Irvin Plant | West Mifflin | PA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| USUS Steel Fairless Hills Works | Fairless Hills | PA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| VSVallourec Star, LP | Youngstown | OH | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| VSVast Sumitec INC | Benton Harbor | MI | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| WPWheeling Pittsburgh Steel Plant - Mingo Junction Facility | Mingo Junction | OH | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| WSW Silver | Vinton | TX | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| ALAllegheny Ludlum CORP | Vandergrift | PA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| BABraeburn Alloy Steel Rolling Mill Fac | Lower Burrell | PA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
Carpenter Technology CORP | Tanner | AL | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| CMCharter Manufacturing Company, INC. (1318171623) | Cuyahoga Heights | OH | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| CSCharter Steel INC | Rising Sun | OH | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| CSCmc Steel - New Jersey Facility | Sayreville | NJ | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| CSCorey Steel CO | Cicero | IL | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| DODawkins On-site, LLC - Missouri Portable Nucor | Sedalia | MO | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| FUFerroglobe USA Bridgeport, Llc, Fka-tennessee Alloys Corporation | Bridgeport | AL | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| GEGateway Energy & Coke CO LLC | Granite City | IL | Petroleum and Coal Products Manufacturing324199 | — | ◐ LIKELY ACTIVE |
| GSGautier Steel Holdings Inc/gautier Steel Johnstown | Johnstown | PA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| HMHarsco Minerals Briquetting LLC | East Chicago | IN | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| HCHoeganeas CORP | Riverton | NJ | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| NSNatl Steel & Shipbuilding a General Dynamics CO | San Diego | CA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| NCNucor CORP - Nucor Steel | Blytheville | AR | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| NSNucor Steel Louisiana LLC | Convent | LA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| OSOutokumpu Stainless USA LLC | Mt Vernon | AL | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| RERepublic Engineered Products INC | Blasdell | NY | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| SMSpecial Metals | Princeton | KY | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| SWSteel Warehouse Company, LLC. | Calvert | AL | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| TCThyssenkrupp Crankshaft Company | Veedersburg | IN | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| TCTimkensteel CORP - Faircrest Steel Plant | Canton | OH | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| TCTube City Ims/slag Processing | Braddock | PA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| UDUS Denro Steels | Baytown | TX | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| VIVest INC | Los Angeles | CA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| VCVictaulic Company/alburtis Facility | Alburtis | PA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| WSWhemco Steel Castings Inc/west Homestead | Homestead | PA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
Dubose Strapping Inc.-treatment Plant #1 | Crawfordsville | IN | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| JJJ J Ryan Corporation Southington Galvanize Division | Plantsville | CT | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| AFAti Flat Rolled Products, LLC | Natrona Heights | PA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
Gerdau Macsteel, INC. | Jackson | MI | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| MMMil-spec Magnetics, INC | Covina | CA | Primary Metal Manufacturing331110 | — | ▲ REPORTED CLOSED |