| HPHydro Portland - Main Plant & Riverside | Portland | OR | Primary Metal Manufacturing331318 | 100-499 | ◐ LIKELY ACTIVE |
| HSHydro Spanish Fork | Spanish Fork | UT | Primary Metal Manufacturing331318 | 100-499 | ◐ LIKELY ACTIVE |
| HSHydro St. Augustine | St. Augustine | FL | Primary Metal Manufacturing331318 | 100-499 | ◐ LIKELY ACTIVE |
| IMIMC Metals | Shelby | NC | Primary Metal Manufacturing331492 | 100-499 | ◐ LIKELY ACTIVE |
| ITIndependence Tube Corporation | Birmingham | AL | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| IWInsteel Wire Products Home offices | Mount Airy | NC | Primary Metal Manufacturing331222 | 100-499 | ◐ LIKELY ACTIVE |
| IWInsteel Wire Products NCW | Mount Airy | NC | Primary Metal Manufacturing331222 | 100-499 | ◐ LIKELY ACTIVE |
| JJackson | Jackson | OH | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| JFJd Fields Hdm Pipe | Houston | TX | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| JPJindal Pipe USA Inc | Baytown | TX | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| JTJindal Tubular USA llc | BayStlouis | MS | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| JFJohnstown Facility | Johnstown | PA | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| JAJW Aluminum - Russellville | Russellville | AR | Primary Metal Manufacturing331315 | 100-499 | ◐ LIKELY ACTIVE |
| JHJ.W. Harris Co., Inc. - Mason | Mason | OH | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| KAKaiser Aluminum | Commerce | CA | Primary Metal Manufacturing331318 | 100-499 | ◐ LIKELY ACTIVE |
| KAKaiser Aluminum | Chandler | AZ | Primary Metal Manufacturing331318 | 100-499 | ◐ LIKELY ACTIVE |
| KPKalas Plant 2 - K2 | Denver | PA | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| KCKautex - CWC | Muskegon | MI | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| KRKennecott Refinery | Magna | UT | Primary Metal Manufacturing331410 | 100-499 | ◐ LIKELY ACTIVE |
| KSKennecott Smelter | Magna | UT | Primary Metal Manufacturing331410 | 100-499 | ◐ LIKELY ACTIVE |
| KKiswire | Pine Bluff | AR | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| KSKyoei Steel America, LLC | Vinton | TX | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| LFLabelleco fab | Beaumont | TX | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| LLafayette | Lafayette | IN | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| LOLatrobe Operations | Latrobe | PA | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| LALeggett and Platt Wire Mill | Cartahge | MO | Primary Metal Manufacturing331222 | 100-499 | ◐ LIKELY ACTIVE |
| LELevy Environmental Services Company dba Levy Big River | Osceola | AR | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| LLLinamar Light Metals-MR, LLC | Mills River | NC | Primary Metal Manufacturing331523 | 100-499 | ◐ LIKELY ACTIVE |
| LJLock Joint Tube Texas | Temple | TX | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| LPLonghorn Plant | Fort Worth | TX | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| LCLoos & Co., Inc. Pomfret | Pomfret Center | CT | Primary Metal Manufacturing331222 | 100-499 | ◐ LIKELY ACTIVE |
| LCLPC Crosswhite | Portland | OR | Primary Metal Manufacturing331523 | 100-499 | ◐ LIKELY ACTIVE |
| LLLpc Lma | Milwaukie | OR | Primary Metal Manufacturing331529 | 100-499 | ◐ LIKELY ACTIVE |
| MAMagnode A division of Shape Corp - Kennel Road | Trenton | OH | Primary Metal Manufacturing331313 | 100-499 | ◐ LIKELY ACTIVE |
| MUMatalco USA, Lordstown LLC | Lordstown | OH | Primary Metal Manufacturing331314 | 100-499 | ◐ LIKELY ACTIVE |
| MBMaterion - Buffalo | Buffalo | NY | Primary Metal Manufacturing331491 | 100-499 | ◐ LIKELY ACTIVE |
| MSMaterion - Shoemakersville | Shoemakersville | PA | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
Matthews International Corporation - Pittsburgh Bronze | Pittsburgh | PA | Primary Metal Manufacturing331529 | 100-499 | ◐ LIKELY ACTIVE |
| MIMayco Industries - Birmingham Main Facility | Birmingham | AL | Primary Metal Manufacturing331491 | 100-499 | ◐ LIKELY ACTIVE |
| MAMerit Aluminum Inc (Building #2) | Corona | CA | Primary Metal Manufacturing331318 | 100-499 | ◐ LIKELY ACTIVE |
| MLMetal-Matic, LLC Minneapolis Plant | Minneapolis | MN | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
Meyer Utility Structures | Hager City | WI | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| MHM & H Valve Company | Anniston | AL | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| MPMid-America Pipe | Scammon | KS | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| MRMidwest Roll Forming & Mfg | Pierceton | IN | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| MMMI Metals - Smyrna | Smyrna | TN | Primary Metal Manufacturing331318 | 100-499 | ◐ LIKELY ACTIVE |
| MJMount Joy Wire Corporation | Mount Joy | PA | Primary Metal Manufacturing331222 | 100-499 | ◐ LIKELY ACTIVE |
| MCMuller Copper Line Sets | Fulton | MS | Primary Metal Manufacturing331410 | 100-499 | ◐ LIKELY ACTIVE |
| NGNational Galvanizing | Monroe | MI | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| NWNational Wire LLC | Conroe | TX | Primary Metal Manufacturing331222 | 100-499 | ◐ LIKELY ACTIVE |