| RARavenna Aluminum Industries INC | Ravenna | OH | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| RSRemelt Services INC | Cleveland | OH | Primary Metal Manufacturing331000 | — | ◇ UNVERIFIED |
| RSRepublic Steel (slag Processing Facility) | Canton | OH | Primary Metal Manufacturing331112 | — | ◇ UNVERIFIED |
| RTRepublic Technologies Intl - Massillon H | Massillon | OH | Primary Metal Manufacturing331111 | — | ◇ UNVERIFIED |
| RRRiver Recycling Industries INC | Cleveland | OH | Primary Metal Manufacturing331314 | — | ◇ UNVERIFIED |
| RTRmi Titanium CO. Sodium Plant | Ashtabula | OH | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
| RARoss Aluminum Foundries Avon Div | Sidney | OH | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| RSRoss Sand Casting Industry, LLC | Orrville | OH | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| SSSamuel Steel Pickling CO * | Cleveland | OH | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| SEScott Engineering and Procurement, INC. (1431004456) | Loveland | OH | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| SPSenco Products INC | Anderson | OH | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| SWSeneca Wire & Mfg CO * | Fostoria | OH | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| SVSherwood Valve LLC | Cleveland | OH | Primary Metal Manufacturing331522 | — | ◇ UNVERIFIED |
| SEStatoil - Eisenbarth Pad | Clarington | OH | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| TFT&b Foundry Company | Cleveland | OH | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| TGTde Group INC (1318536280) | Solon | OH | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| TAThakar Aluminum | Sandusky | OH | Primary Metal Manufacturing331314 | — | ◇ UNVERIFIED |
| TBThe Blanchester Foundry CO | Blanchester | OH | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| TGThe G a Avril Company Brass & Bronze Division | Cincinnati | OH | Primary Metal Manufacturing331314 | — | ◇ UNVERIFIED |
| TGThe General Casting Company - Toledo Street | Delaware | OH | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| TLThe Linderme Tube Company | Euclid | OH | Primary Metal Manufacturing331420 | — | ◇ UNVERIFIED |
| UAUnico Alloys INC | Columbus | OH | Primary Metal Manufacturing331419 | — | ◇ UNVERIFIED |
| VWVictory White Metal | Cleveland | OH | Primary Metal Manufacturing331314 | — | ◇ UNVERIFIED |
| WAWabash Alloys | Cleveland | OH | Primary Metal Manufacturing331000 | — | ◇ UNVERIFIED |
| WIWillard Industries INC | Cincinnati | OH | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
| YIYoder Industries INC | Dayton | OH | Primary Metal Manufacturing331314 | — | ◇ UNVERIFIED |
| HC"4304 - Holiday City Steel Plant" | Holiday City | OH | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| ALAerolite LLC | Youngstown | OH | Primary Metal Manufacturing331318 | 100-499 | ◐ LIKELY ACTIVE |
| AUAlloy Unlimited Processing LLC | Austintown | OH | Primary Metal Manufacturing331110 | 1-19 | ◐ LIKELY ACTIVE |
| AEAluminum Extruded Shapes | Cincinnati | OH | Primary Metal Manufacturing331318 | 20-99 | ◐ LIKELY ACTIVE |
| AAAmerican Axle & Manufacturing | Twinsburg | OH | Primary Metal Manufacturing331523 | 100-499 | ◐ LIKELY ACTIVE |
| APARI Phoenix Inc | Sharonville | OH | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| BPBar Processing Corp | Wickliife | OH | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| BMBMT Masury | Masury | OH | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| BRBulldog Racks of Toronto Inc. | Toronto | OH | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| BWB W Supply Company | Lyons | OH | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| CACast Alloy Products LLC | Avon | OH | Primary Metal Manufacturing331529 | — | ◐ LIKELY ACTIVE |
| CSCharter Steel- Fostoria | Rising Sun | OH | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| CCCleveland-Cliffs Corporate Cleveland - Corporate | Cleveland | OH | Primary Metal Manufacturing331110 | 1-19 | ◐ LIKELY ACTIVE |
| CCCleveland Cliffs Coshocton Works | Coshocton | OH | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| CSCleveland-Cliffs Steel West Chester Regional Office | West Chester | OH | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| CTCleveland-Cliffs Tubular Components - Walbridge | Walbridge | OH | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| CBConcast Birmingham Inc | Wakeman | OH | Primary Metal Manufacturing331529 | 20-99 | ◐ LIKELY ACTIVE |
| CSCurtis St | Delaware | OH | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| ESEllwood Specialty Metals Company | Stow | OH | Primary Metal Manufacturing331513 | — | ◐ LIKELY ACTIVE |
| EEElmet Euclid LLC | Euclid | OH | Primary Metal Manufacturing331491 | — | ◐ LIKELY ACTIVE |
| EFEpcor Foundry | Cincinnati | OH | Primary Metal Manufacturing331524 | 20-99 | ◐ LIKELY ACTIVE |
| FUFerroglobe Usa, INC. | Waterford | OH | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| FIFusion, Incorporated - Plant 2 | Willoughby | OH | Primary Metal Manufacturing331492 | 20-99 | ◐ LIKELY ACTIVE |
| GAGeneral Aluminum LLC, Conneaut | Conneaut | OH | Primary Metal Manufacturing331524 | 20-99 | ◐ LIKELY ACTIVE |