| MMMidwest Mfg Prehung Plant | Eau Claire | WI | — | ◇ UNVERIFIED |
| MWMillard Wire & Specialty Strip CO. | Warwick | RI | — | ◇ UNVERIFIED |
| MCMueller Casting and Copper Tube Products | Fulton | MS | — | ◇ UNVERIFIED |
| MCMueller Copper Tube West CO. | Cedar City | UT | — | ◇ UNVERIFIED |
| NBNucor Bright Bar Orrville | Orrville | OH | — | ◇ UNVERIFIED |
| NCNucor Cold Finish Wisconsin INC | Oak Creek | WI | — | ◇ UNVERIFIED |
| NCNucor Corporation | Norfolk | NE | — | ◇ UNVERIFIED |
| NCNucor CORP Vulcraft Div | Brigham City | UT | — | ◇ UNVERIFIED |
| NINucor-lmp, INC | Maryville | MO | — | ◇ UNVERIFIED |
| OPOhio Pickling & Processing | Toledo | OH | — | ◇ UNVERIFIED |
| OCOkonite Company, the | Paterson | NJ | — | ◇ UNVERIFIED |
| OWOlin Winchester LLC | East Alton | IL | — | ◇ UNVERIFIED |
| OWOmega Wire, INC. - Jordan Plant | Jordan | NY | — | ◇ UNVERIFIED |
| OWOmega Wire INC - Owi Plant | Camden | NY | — | ◇ UNVERIFIED |
| OWOmega Wire INC - Plant 1 | Camden | NY | — | ◇ UNVERIFIED |
| OWOmega Wire INC Rome Operations | Rome | NY | — | ◇ UNVERIFIED |
| OSOutokumpu Stainless Bar INC | Richburg | SC | — | ◇ UNVERIFIED |
| OIOxford Instruments | Carteret | NJ | — | ◇ UNVERIFIED |
| PHParker Hannifin-otsego | Otsego | MI | — | ◇ UNVERIFIED |
| PPPep Polymet Clad Metal | North Attleboro | MA | — | ◇ UNVERIFIED |
| PPPiad Precision Casting/hempfield Twp Plt | Greensburg | PA | — | ◇ UNVERIFIED |
| PKPrecision Kidd Steel CO | Aliquippa | PA | — | ◇ UNVERIFIED |
| PRProgress Rail | Atchison | KS | — | ◇ UNVERIFIED |
| PGPrysmain Group - General Cable | Lawrenceburg | KY | — | ◇ UNVERIFIED |
| RSRepublic Steel Wire Processing, LLC | Solon | OH | — | ◇ UNVERIFIED |
| RWRepublic Wire INC | West Chester | OH | — | ◇ UNVERIFIED |
| RCRevere Copper Products INC | Rome | NY | — | ◇ UNVERIFIED |
| RSRevere South INC. | Mebane | NC | — | ◇ UNVERIFIED |
| SDSam Dong Ohio INC | Delaware | OH | — | ◇ UNVERIFIED |
| SSSamuel Steel Pickling CO | Twinsburg | OH | — | ◇ UNVERIFIED |
| SSSandvik Steel CO | Benton Harbor | MI | — | ◇ UNVERIFIED |
| STSchlumberger Tech CORP Lawrence Product Center | Lawrence | KS | — | ◇ UNVERIFIED |
| SMScm Metal Products, INC. | Research Triangle Park | NC | — | ◇ UNVERIFIED |
| SLSdi Lafarga LLC - Copperworks Facility | New Haven | IN | — | ◇ UNVERIFIED |
| SWService Wire CO | Houston | TX | — | ◇ UNVERIFIED |
| SWService Wire CO | Culloden | WV | — | ◇ UNVERIFIED |
| SPSims Precious Metals | Franklin Park | IL | — | ◇ UNVERIFIED |
 Skyline Steel | Belpre | OH | — | ◇ UNVERIFIED |
| Skyline Steel Llc-cartersville | Cartersville | GA | — | ◇ UNVERIFIED |
| SMSmoky Mountain Metals, INC. | Maryville | TN | — | ◇ UNVERIFIED |
| SCSouthwire CO | Florence | AL | — | ◇ UNVERIFIED |
| SCSouthwire Company LLC | Bremen | IN | — | ◇ UNVERIFIED |
| SESouthwire El Paso Operations | El Paso | TX | — | ◇ UNVERIFIED |
| STSteel Technologies | Mission | TX | — | ◇ UNVERIFIED |
| STSteel Technologies INC | Madison | MS | — | ◇ UNVERIFIED |
| STSteel Technologies INC | Canton | MI | — | ◇ UNVERIFIED |
| STSteel Technologies Lcc | Huger | SC | — | ◇ UNVERIFIED |
| STSteel Technologies LLC | Santa Teresa | NM | — | ◇ UNVERIFIED |
| STSteel Technologies LLC | Smyrna | TN | — | ◇ UNVERIFIED |
| STSteel Technologies LLC | Mira Loma | CA | — | ◇ UNVERIFIED |
| STSteel Technologies LLC | Murfreesboro | TN | — | ◇ UNVERIFIED |
| STSteel Technologies LLC | Ghent | KY | — | ◇ UNVERIFIED |
| STSteel Technologies LLC | Ottawa | OH | — | ◇ UNVERIFIED |
| STSteel Technologies LLC | Willoughby | OH | — | ◇ UNVERIFIED |
| STSteel Technologies LLC | Eminence | KY | — | ◇ UNVERIFIED |
| STSteel Technologies LLC | Mishawaka | IN | — | ◇ UNVERIFIED |
| STSteel Technologies Llc-treatment Plant #1 | Crawfordsville | IN | — | ◇ UNVERIFIED |
| STSteel Technologies Portage | Portage | IN | — | ◇ UNVERIFIED |
| SWSteel Warehouse of Memphis | Memphis | TN | — | ◇ UNVERIFIED |
| SWSteel Warehouse of Milwaukee | Oak Creek | WI | — | ◇ UNVERIFIED |
| SWSteel Warehouse of Ohio LLC | Cleveland | OH | — | ◇ UNVERIFIED |
| SWSteel Warehouse of Ohio LLC | Cleveland | OH | — | ◇ UNVERIFIED |
| SWSteel Warehouse of Portage | Portage | IN | — | ◇ UNVERIFIED |
| SWSteel Warehouse of Quad Cities | Rock Island | IL | — | ◇ UNVERIFIED |
| SLSt Louis Cold Drawn LLC | Saint Louis | MO | — | ◇ UNVERIFIED |
| TMTalley Metals Technology | Mcbee | SC | — | ◇ UNVERIFIED |
| TITdy Industries LLC - Ati Firth Sterling | Huntsville | AL | — | ◇ UNVERIFIED |
| TMTeleflex Medical Oem LLC Pka Iwg Hpc INC. | Trenton | GA | — | ◇ UNVERIFIED |
| TTThe Techs - Nextech Plant | Turtle Creek | PA | — | ◇ UNVERIFIED |
| UCUnited Copper Industries | Denton | TX | — | ◇ UNVERIFIED |
| UMUniversal Metal Service CORP | South Holland | IL | — | ◇ UNVERIFIED |
| UFUrick Foundry Co/erie | Erie | PA | — | ◇ UNVERIFIED |
| WCWieland Copper Products LLC | Pine Hall | NC | — | ◇ UNVERIFIED |
| WRWieland Rolled Products NA - East Alton Casting Plant | East Alton | IL | — | ◇ UNVERIFIED |
| WCWismarq CORP | Jackson | TN | — | ◇ UNVERIFIED |
 Wolverine Tube | Ardmore | TN | — | ◇ UNVERIFIED |
| WHWood - H&h Tube Gwcu | Vanderbilt | MI | — | ◇ UNVERIFIED |
| WCWorthington Cylinders Mississippi LLC | New Albany | MS | — | ◇ UNVERIFIED |
| WIWorthington Industries (formerly Heidtman Steel Products) | Cleveland | OH | — | ◇ UNVERIFIED |
| WSWorthington Steel | Cuyahoga Heights | OH | — | ◇ UNVERIFIED |
| ZPZapp Precision Strip,inc | Dartmouth | MA | — | ◇ UNVERIFIED |
| 3F3-v Fastener Co., INC. | Brea | CA | — | ◐ LIKELY ACTIVE |
| EC"4004 - Eau Claire Steel Plant" | Eau Claire | WI | 20–99 | ◐ LIKELY ACTIVE |
| HC"4304 - Holiday City Steel Plant" | Holiday City | OH | 20–99 | ◐ LIKELY ACTIVE |
| VS"4504 - Valley Steel Plant" | Valley | NE | 20–99 | ◐ LIKELY ACTIVE |
| ASAgw Steel INC | Decatur | IL | — | ◐ LIKELY ACTIVE |
| ACAmerican Cornerbead Company | Gastonia | NC | 1–19 | ◐ LIKELY ACTIVE |
| AHAmerican Heavy Plates | Clarington | OH | 100–499 | ◐ LIKELY ACTIVE |
| AIAmtrol Inc Baltimore | Sparrows Point | MD | 1–19 | ◐ LIKELY ACTIVE |
| ABAnchor Bay Steel, LLC | Southfield | MI | — | ◐ LIKELY ACTIVE |
| BWBadger Wire | Waukesha | WI | 20–99 | ◐ LIKELY ACTIVE |
| BPBar Processing Corp | Wickliife | OH | 20–99 | ◐ LIKELY ACTIVE |
| BPBar Processing Warren | Warren | MI | 20–99 | ◐ LIKELY ACTIVE |
| BPBayou Processing and Storage, LP | Houston | TX | 20–99 | ◐ LIKELY ACTIVE |
| BOBekaert Orrville | Orrville | OH | 100–499 | ◐ LIKELY ACTIVE |
| BABerk-Tek, a Leviton Manufacturing Company | New Holland | PA | 100–499 | ◐ LIKELY ACTIVE |
| BFBoonville Facility | Boonville | NY | 20–99 | ◐ LIKELY ACTIVE |
| BIBowman Industries LLC | Belgrade | MT | — | ◐ LIKELY ACTIVE |
| BOBrackenridge Operations | Brackenridge | PA | 100–499 | ◐ LIKELY ACTIVE |
| BABraeburn Alloy Steel LLC | Oil City | PA | 1–19 | ◐ LIKELY ACTIVE |
