| BMBull Moose Tube CO - Masury Plant | Masury | OH | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| MUMarcegaglia USA Munhall Plant | Munhall | PA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| AMAlphi Manufacturing INC | Jonesville | MI | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| MTMid-ohio Tubing LLC | Butler | OH | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| NWNew World Stainless | Somerset | NJ | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| OEOpw Engineered Systems | Lebanon | OH | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| PTPlymouth Tube CO | Streator | IL | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| 2R2700 Real Estate Holdings | Elkhart | IN | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| ASAbingdon Steel, INC. | Abingdon | VA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| ATAccu Tube Corporation | Englewood | CO | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| ASAcosta Sheet Metal Mfg INC | San Jose | CA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| ACAlaskan Copper & Brass CO Ctl | Seattle | WA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| ATAlliance Tubular Holdings LLC | Dixmoor | IL | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| ATAllied Tube & Conduit CORP | Morrisville | PA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| ATAllied Tube & Conduit Corp/norcom | Philadelphia | PA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| AEAmco Engineering CO | Schiller Park | IL | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| ASAmerican Stair CORP | Romeoville | IL | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| ATAmerican Tube Manufacturing, INC. | Birmingham | AL | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
 Api Heat Transfer INC. | Montgomery | AL | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| ATAtlas Tube-blytheville Plant | Armorel | AR | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| BMBarbay Machine Works | Beaumont | TX | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| BBB & B Pipe & Tool Company | Long Beach | CA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| BFBeaver Falls Tubular Prodllc/beaver Falls Plt | Beaver Falls | PA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| BTBellville Tube | Bellville | TX | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| BDBohn & Dawson | Kirkwood | MO | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| BFBrendle Fire Equipment, INC. | Montgomery | AL | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| BEBromley Excavating | Centralia | IL | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| BMBull Moose Tube | Sinton | TX | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| BMBull Moose Tube CO | Chicago Heights | IL | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| CSCentral Steel & Wire CO | Chicago | IL | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| CPCentric Pipe LLC | Bossier City | LA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| CCCham Cal Engineering | Garden Grove | CA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| CIChrist Iron Works, INC. | Kenosha | WI | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| CCContech Const Prod - Greencastle | Greencastle | PA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
 Contech Engineered Solutions, LLC | Englewood | TN | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| CACooper-standard Automotive | Surgoinsville | TN | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| CSCopperweld - Stainless Div | Elizabethtown | KY | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| CICrucible INC Trent Tube Div Plt 1 | East Troy | WI | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| DBDamascus Bishop Tube/greenville | Greenville | PA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| DPDavis Pipe INC. | Blountville | TN | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| ETEgle-rrd-austin Tube Prod | Baldwin | MI | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| ETEpix Tube Company, INC. | Aurora | IL | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| FTFayette Tubular Products | Sullivan | IL | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| GWGamesa Wind/fairless Hills Wind Turbine Nacelle Mfg | Fairless Hills | PA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| GGerdau | Urbana | IL | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| GTGibson Tube | Bridgewater | NJ | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| GCGordon Corporation | Southington | CT | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| GLGreat Lakes X-cel | Niles | MI | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| HSHanna Steel CORP | Gadsden | AL | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| HIHensley Industries INC - Mansfield Foundry Division | Mansfield | LA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
