| NCNucor Cold Finish | Brigham City | UT | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| NSNucor Skyline | Camp Hill | PA | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| NSNucor Skyline Cartersville | Cartersville | GA | Primary Metal Manufacturing331221 | 1-19 | ◐ LIKELY ACTIVE |
| OOhio | North Jackson | OH | Primary Metal Manufacturing331221 | 1-19 | ◐ LIKELY ACTIVE |
| OSOhio-Kentucky Steel, LLC | Toledo | OH | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| PSPeninsula Steel Inc | Plant City | FL | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| PMPhillips Manufacturing Niles | Niles | OH | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| PMPhillips Manufacturing Umatilla | Umatilla | FL | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| P2Plant 27 - SteelCon/Orlando | Orlando | FL | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| PMPremium Metals, Inc. | Cleveland | OH | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| RMRepublic Manufacturing | Dallas | TX | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| RSRiverside Steel, Inc. | Perris | CA | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| RORochester Operations | Rochester | PA | Primary Metal Manufacturing331221 | 1-19 | ◐ LIKELY ACTIVE |
| RDRoller Die-Green Cove Springs | Green Cove Springs | FL | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| RDRoller Die-Louisville | Louisville | KY | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| RDRoller Die-Rossville | Rossville | GA | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| RFRoll Form | Iuka | MS | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| SSSaber Steel, LLC | Tulsa | OK | Primary Metal Manufacturing331221 | 1-19 | ◐ LIKELY ACTIVE |
| SSSalina Steel Supply, Inc. | Salina | KS | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| SSawyer | Sawyer | MI | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| SWSmith & Wesson Houlton, ME Site B | Houlton | ME | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| SESouth East Tube | Cadiz | KY | Primary Metal Manufacturing331221 | 1-19 | ◐ LIKELY ACTIVE |
| SSSouth Salt Lake City Branch | South Salt Lake | UT | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| SSSpecialty Steel Products, INC. | San Diego | CA | Primary Metal Manufacturing331221 | — | ◐ LIKELY ACTIVE |
| SMSSAB Minnesota Inc. | Roseville | MN | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| SSSTS Steel Technologies,LLC | Houston | TX | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| TCterrasmart - Cincinnati | Cincinnati | OH | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| TMTexas Military Department | Austin | TX | Primary Metal Manufacturing331221 | — | ◐ LIKELY ACTIVE |
| TITriangle Industrial Fab LLC | Tucson | AZ | Primary Metal Manufacturing331221 | — | ◐ LIKELY ACTIVE |
| TGTufts Grinding, Inc. | South Chicago Heights | IL | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| VOVandergrift Operations | Vandergrift | PA | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| WOWashington Operations | Washington | PA | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| WSWorthington Steel Cleveland | Cuyahoga Heights | OH | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| WSWorthington Steel Technical Services | Columbus | OH | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| ZOZelienople Operations | Zelienople | PA | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| MBMaster Builders & Erectors CORP | Folcroft | PA | Primary Metal Manufacturing331221 | — | ◐ LIKELY ACTIVE |
| OUOnyx Unlimited LLC | Trussville | AL | Primary Metal Manufacturing331221 | — | ◐ LIKELY ACTIVE |
| PSPacific Steel Group, LLC | San Diego | CA | Primary Metal Manufacturing331221 | — | ◐ LIKELY ACTIVE |
| CSContractors Steel Company | Belleville | MI | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| CICosmec, INC. | Athens | TX | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| FLFine Line Metal Fabricators | Terrell | TX | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| HHHammer Haag Steel INC. | Clearwater | FL | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| UMUnited Metal Products | Corona | CA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| 1U105137 - US Steel Gary Complex | Gary | IN | Primary Metal Manufacturing331111 | — | ◇ UNVERIFIED |
| 5W58346 - Wolf Steel U.s.a. INC. | Crittenden | KY | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| 7O70 Old Canal LLC | Lowell | MA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| 9M92480 - Metal Sales Manufacturing Corporation | Otsego | MN | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| 9M93462 - Millerbernd Manufacturing Company | Winsted | MN | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| 9S93791 - Ssab Minnesota INC | Saint Paul | MN | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| AAA & a Iron Work Co., INC. | Oak Ridge | NJ | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |