| JHJ.W. Harris Co., Inc. - Mason | Mason | OH | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| KCKalas Corporate Center - KC | Denver | PA | Primary Metal Manufacturing331420 | 20-99 | ◐ LIKELY ACTIVE |
| KPKalas Plant 2 - K2 | Denver | PA | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| KFKenwood Facility | Sherrill | NY | Primary Metal Manufacturing331420 | 20-99 | ◐ LIKELY ACTIVE |
| LLafayette | Lafayette | IN | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| MSMaterion - Shoemakersville | Shoemakersville | PA | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| MPMetallurgical Products Company | West Chester | PA | Primary Metal Manufacturing331420 | 1-19 | ◐ LIKELY ACTIVE |
| MCMinitec Corporation | Dover | NJ | Primary Metal Manufacturing331420 | — | ◐ LIKELY ACTIVE |
| MCMueller Copper Tube Company | Fulton | MS | Primary Metal Manufacturing331420 | 500+ | ◐ LIKELY ACTIVE |
| NENew England Wire Littleton Inc | Littleton | NH | Primary Metal Manufacturing331420 | 1-19 | ◐ LIKELY ACTIVE |
| PCPrysmian Cables and Systems | Scottsville | TX | Primary Metal Manufacturing331420 | 500+ | ◐ LIKELY ACTIVE |
| PGPrysmian Group Specialty Cables LLC | Taunton | MA | Primary Metal Manufacturing331420 | — | ◐ LIKELY ACTIVE |
| RMRome Madison Facility | Rome | NY | Primary Metal Manufacturing331420 | 1-19 | ◐ LIKELY ACTIVE |
| SDSam Dong Inc. | Rogersville | TN | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| SLSDI LaFarga Copperworks, LLC. | New Haven | IN | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| SSouthwire | El Paso | TX | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| SPStarkville Plant | Starkville | MS | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| SESuperior Essex | Fort Wayne | IN | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| TFTrystar Faribault | Faribault | MN | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| Wwieland | Pine Hall | NC | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| WCWieland Chase | Montpelier | OH | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| WTWieland Thermal Solutions, Inc. | Wheeling | IL | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| WTWieland Thin Strip | Water | CT | Primary Metal Manufacturing331420 | 20-99 | ◐ LIKELY ACTIVE |
| WFWilliamstown Facility | Williamstown | NY | Primary Metal Manufacturing331420 | 1-19 | ◐ LIKELY ACTIVE |