| JSJm Steel, Pa | Leetsdale | PA | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| JFJordan Facility | Jordan | NY | Primary Metal Manufacturing331420 | 20-99 | ◐ LIKELY ACTIVE |
| KAKaiser Aluminum Richland | Richland | WA | Primary Metal Manufacturing331318 | 20-99 | ◐ LIKELY ACTIVE |
| KCKalas Corporate Center - KC | Denver | PA | Primary Metal Manufacturing331420 | 20-99 | ◐ LIKELY ACTIVE |
| KIKcng Iowa | Cedar Falls | IA | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| KFKenwood Facility | Sherrill | NY | Primary Metal Manufacturing331420 | 20-99 | ◐ LIKELY ACTIVE |
| KKeyano | Fonda | NY | Primary Metal Manufacturing331318 | 20-99 | ◐ LIKELY ACTIVE |
| KWKeysteel Wire Corporation | New Carney | TX | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| KUKonec USA LLC | Houston | TX | Primary Metal Manufacturing331523 | 20-99 | ◐ LIKELY ACTIVE |
| KIKroy Industries | York | NE | Primary Metal Manufacturing331315 | 20-99 | ◐ LIKELY ACTIVE |
| KKst-ky | Paris | KY | Primary Metal Manufacturing331314 | 20-99 | ◐ LIKELY ACTIVE |
| KIKWM, Inc. dba Stainless Structurals Works | Conroe | TX | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| LFLABECA - Ferguson | Ft Wayne | IN | Primary Metal Manufacturing331222 | 20-99 | ◐ LIKELY ACTIVE |
| LFLABECA - Ferguson | Fort Wayne | IN | Primary Metal Manufacturing331222 | 20-99 | ◐ LIKELY ACTIVE |
| LMLabeca - McArthur | Fort Wayne | IN | Primary Metal Manufacturing331222 | 20-99 | ◐ LIKELY ACTIVE |
| LFLahti Fabrication Inc | Alger | MI | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| LHLapham - Hickey Steel | Fountain Inn | SC | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| LSLapham-Hickey Steel | Little Canada | MN | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| LSLapham-Hickey Steel Corp | Madison | IL | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| LMLaurel Machine and Foundry, Hawkes Circle | Laurel | MS | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| LFLaX Fabricating LTD - Spring Grove MN | Spring Grove | MN | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| LFLaX Fabricating LTD - Westby WI | Westby | WI | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| LELevy Environmental Services Company dba Brandenburg Mill Service | Brandenburg | KY | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| LELevy Environmental Services Company dba Butler Mill Service | Butler | IN | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| LELevy Environmental Services Company dba Charleston Mill Service | Huger | SC | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| LELevy Environmental Services Company dba Columbia City Mill Services | Columbia City | IN | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| LELevy Environmental Services Company dba Fulton Mill Service | Delta | OH | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| LELevy Environmental Services Company dba Levy Gallatin Mill Service | Ghent | KY | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| LELevy Environmental Services Company dba Levy NYS Mill Service | Blytheville | AR | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| LELevy Environmental Services Company dba Levy Texas Mill Services | Sinton | TX | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| LLiberty-550 | Delaware | OH | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| LTLiberty Tec | Delaware | OH | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| LALinde Advanced Material Technologies | Orangeburg | NY | Primary Metal Manufacturing331410 | 20-99 | ◐ LIKELY ACTIVE |
| LOLockport Operations | Loc | NY | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| LMLoucks Mill | York | PA | Primary Metal Manufacturing331222 | 20-99 | ◐ LIKELY ACTIVE |
| LILpc Itc | Portland | OR | Primary Metal Manufacturing331523 | 20-99 | ◐ LIKELY ACTIVE |
| LSLSM - Sandy Creek | Franklin | PA | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| LMLuxfer MEL Technologies - Tamaqua | Tamaqua | PA | Primary Metal Manufacturing331492 | 20-99 | ◐ LIKELY ACTIVE |
| LALynch Aluminum MFG Co | Peoria | IL | Primary Metal Manufacturing331318 | 20-99 | ◐ LIKELY ACTIVE |
| MKMadison Kipp Corporation - North | Madison | WI | Primary Metal Manufacturing331523 | 20-99 | ◐ LIKELY ACTIVE |
| MKMadison Kipp Corporation South Plant/Corporate | Madison | WI | Primary Metal Manufacturing331523 | 20-99 | ◐ LIKELY ACTIVE |
| MLMagnus, LLC | Fremont | NE | Primary Metal Manufacturing331529 | 20-99 | ◐ LIKELY ACTIVE |
| MMain | Birmingham | AL | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| MPMain Plant | Clifton | NJ | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| MMMarion Manufacturing, Inc. | Marion | KS | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| MIMar-Mac Industries, Inc. | Mcbee | SC | Primary Metal Manufacturing331222 | 20-99 | ◐ LIKELY ACTIVE |
| MMaryville | Maryville | MO | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| MFMatalco Franklin | Franklin | KY | Primary Metal Manufacturing331314 | 20-99 | ◐ LIKELY ACTIVE |
| MIMatalco Inc. | Bluffton | IN | Primary Metal Manufacturing331314 | 20-99 | ◐ LIKELY ACTIVE |
| MSMaterial Sampling Technologies | N. Smithfield | RI | Primary Metal Manufacturing331492 | 20-99 | ◐ LIKELY ACTIVE |