| FMFederal Mogul Corp-sparta Foundry | Sparta | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| FLFire Lane 23 INC. | Auburn | NY | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| FFFlockhart Foundry CO | Newark | NJ | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| FNFrancis & Nygren Foundry CO | Chicago | IL | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| FAFrazier and Frazier Industries INC | Coolidge | TX | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| GCGalesburg Castings INC | Galesburg | IL | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| GCG. & C. Foundry CO. (0322020044) | Sandusky | OH | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| GCGeneral Casting CO Domestic Div | Shippensburg | PA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| GFGeorge Field & David Field | Silverton | OR | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| GLGfmco, LLC | Cordele | GA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| GIGlobe Iron Foundry INC | Commerce | CA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| GDGm Defiance Casting Operations (0320010001) | Defiance | OH | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| GDGm Defiance Casting Operations (0320010044) | Defiance | OH | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| GIGould INC Foundry Products Div | St Louis | MO | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| GCGrede Casting Integrity | Columbiana | AL | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| GHGrede Holdings LLC | Novi | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| GHGrede Holdings LLC - Omaha Division | Omaha | NE | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| GWGrede Wisconsin Subsidiaries LLC | Browntown | WI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| GIGregg Industries INC | El Monte | CA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| HIHarris Industries INC | Longview | TX | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| HIHartman Industries Dba Commercial Casting Company | Fontana | CA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| HMHenderson Manufacturing Company | Pittsburg | TX | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| IAInferno Art Foundry INC. | Union City | GA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| IFInland Fndy CO INC | Mead | WA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| IRIron Rod | Los Gatos | CA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| JCJerry Carroll Machining INC Dba Electrocut-pacific | San Carlos | CA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| JCJ.E.T. Corporation | Bridgeport | CT | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| JRJots Rentals | Longview | TX | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| JCJp Castings INC Dba Specialty Castings | Springport | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| KHKempf Holdings, LLC | Omaha | NE | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| KAKeys Aluminum | La Mirada | CA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| KFKits Foundry and Machine, INC. | Shelley | ID | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| KPK P Iron Foundry INC | Fresno | CA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| LMLancaster Malleable /manheim-keller | Lancaster | PA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| LCLiberty Casting Company-kip Moldline (0333010042) | Kenton | OH | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| LFLufkin Foundry & Power Transmission Divisions | Lufkin | TX | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| MFMacaulay Foundry INC | Berkeley | CA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
 Machineworks Manufacturing | Chatsworth | CA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| MMMagnus Metal INC | East Peoria | IL | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| MAManhole Adjusting Contractors | Monterey Park | CA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| MMMarcellus Metalcasters INC | Marcellus | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| MIMas Iron CO | Los Angeles | CA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| MFMay Foundry & Machine CO | Slc | UT | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| MMcwane | Tyler | TX | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| MCMcwane Cast Iron Pipe CO. | Birmingham | AL | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| MTMetal Technologies Dba Ravenna Ductile Iron Plant | Ravenna | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| MLMetavation LLC Vassar Plt | Vassar | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| MMMicro Metals | Richmond | CA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| MMMidwest Metallurgical Laboratory INC | Marshall | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
 M&l Precision Machining INC | Morgan Hill | CA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
