| NSNucor Steel | Norfolk | NE | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| CSCalifornia Steel Industries INC | Fontana | CA | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| NPNlmk Pennsylvania Lcc | Farrell | PA | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| VSVallourec Star, LP | Youngstown | OH | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| CSCalifornia Steel Industries | Fontana | CA | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| CSCF&I Steel LP dba Rocky Mountain Steel Mills | Pueblo | CO | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| CSCleveland-Cliffs Steelton LLC | Steelton | PA | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| GCGranite City Works | Granite City | IL | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| GLGreat Lakes Works | Ecorse | MI | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| NSNucor Steel Arkansas | Blytheville | AR | Nonmetallic Mineral Product Manufacturing327910 | 500+ | ◐ LIKELY ACTIVE |
| NSNucor Steel Gallatin LLC | Ghent | KY | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| SDSteel Dynamics, Inc. - Structural and Rail | Columbia City | IN | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| BTBaytown Texas | Baytown | TX | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| CPClairton Plant | Clairton | PA | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| CBCleveland-Cliffs Butler Works | Lyndora | PA | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| CSCMC Steel Texas | Seguin | TX | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| ETEdgar Thomson Plant | Braddock | PA | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| GSGrant Street | Pittsburgh | PA | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| IPIrvin Plant | West Mifflin | PA | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| LLLSM - Latrobe | Latrobe | PA | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| MJMedtronic JAXs | Jacksonville | FL | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| MPMidwest Plant | Portage | IN | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| MAMobis America Inc dba Mobis Alabama LLC | Montgomery | AL | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| OSOutokumpu Stainless USA LLC | Calvert | AL | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| SMSSAB Mobile | Axis | AL | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| SDSteel Dynamics, Inc. - Engineered Bar Products | Pittsboro | IN | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| SDSteel Dynamics, Inc. - Flat Roll Group - Butler | Butler | IN | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| SDSteel Dynamics, Inc. - Flat Roll Group - Columbus | Columbus | MS | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| SOSteel of West Virginia, Inc. | Huntington | WV | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |