| NFNon Ferrous Cast Alloys INC | Muskegon | MI | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| ALAlutech LLC | Benton Harbor | MI | Primary Metal Manufacturing331523 | — | ◇ UNVERIFIED |
| AIAutocast INC | Grandville | MI | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| BHBohn Hydro Aluminum | Holland | MI | Primary Metal Manufacturing331316 | — | ◇ UNVERIFIED |
 Bunting Bearings CORP | Portage | MI | Primary Metal Manufacturing331529 | — | ◇ UNVERIFIED |
| CDCascade Die Casting Mid-state | Grand Rapids | MI | Primary Metal Manufacturing331522 | — | ◇ UNVERIFIED |
| CUContech U.s. LLC | Dowagiac | MI | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| CCCosma Casting Mich-battle Ck | Battle Creek | MI | Primary Metal Manufacturing331523 | — | ◇ UNVERIFIED |
| DSDw-national Standard-niles, LLC | Niles | MI | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| EJEast Jordan Foundry LLC | Elmira | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| FPFritz Products | River Rouge | MI | Primary Metal Manufacturing331314 | — | ◇ UNVERIFIED |
| GBGrand Blanc Processing | Holly | MI | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| GLGreat Lakes Die Cast | Muskegon | MI | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| LCLinamar Corporation | Alma | MI | Primary Metal Manufacturing331523 | — | ◇ UNVERIFIED |
| LPLinn Products INC | Charlotte | MI | Primary Metal Manufacturing331312 | — | ◇ UNVERIFIED |
| MTMelling Tool Company | Battle Creek | MI | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| MTMetal Technologies INC -three Rivers Gray Iron | Three Rivers | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| NTNew Technology Steel | Erie | MI | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| RSRing Screw Works | Madison Heights | MI | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| SAShipston Aluminum Technologies | Fruitport | MI | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| ACAlgonac Cast Products INC | Algonac | MI | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| ACArca Cast INC | Bay City | MI | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| AEAacoa Extrusions INC. | Niles | MI | Primary Metal Manufacturing331316 | — | ◇ UNVERIFIED |
| AFAdrian Fabricators INC. | Adrian | MI | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| ASAdvantage Sintered Metals INC | Battle Creek | MI | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| ABAlfredson Brothers Construction Company | Menominee | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
 Allied Metals CORP | Troy | MI | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| AMAlreco Metals | Benton Harbor | MI | Primary Metal Manufacturing331000 | — | ◇ UNVERIFIED |
| AIAncast INC. | Sodus | MI | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| AAArco Alloys CORP | Detroit | MI | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| ACAti Casting Service | Alpena | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| BSBarber Steel Foundry Corporation | Rothbury | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| BCBay Cast INC | Bay City | MI | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| BMBenton Metal Recycling | Benton Harbor | MI | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| BMBurgess-norton Mfg CO / Std Auto Parts CO Div | Muskegon | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CGCitation Grand Rapids | Grand Rapids | MI | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| CAConcept Alloys LLC a Close Corporation | Whitmore Lake | MI | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
| CAContinental Aluminum | New Hudson | MI | Primary Metal Manufacturing331314 | — | ◇ UNVERIFIED |
| DMDaimlerchrysler Mt Elliott | Detroit | MI | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| DSDelray Steel Casting INC | Melvindale | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| DCDetroit Coke CORP | Detroit | MI | Primary Metal Manufacturing331000 | — | ◇ UNVERIFIED |
| DSDetroit Steel CO Trenton | Trenton | MI | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| DEDouble Eagle Steel Coating Company | Dearborn | MI | Primary Metal Manufacturing331112 | — | ◇ UNVERIFIED |
| ETEgle-rrd-austin Tube Prod | Baldwin | MI | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| FIFranklin Iron & Metal | Battle Creek | MI | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| FEFritz Enterprises INC | Flint | MI | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
| GGGci Gokoh Coldwater INC | Coldwater | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| GPGm Power Train Saginaw Malleable Iron | Saginaw | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| GLGm-smco Landfill | Saginaw | MI | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| GLGreat Lakes X-cel | Niles | MI | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
