| source | facility | location |
| 0125040020 P906 | COLUMBUS STEEL CASTINGS | COLUMBUS |
| 0247040014 F009 | ELYRIA FOUNDRY | ELYRIA |
| 0247040014 P004 | ELYRIA FOUNDRY | ELYRIA |
| 0247040014 P005 | ELYRIA FOUNDRY | ELYRIA |
| 0247040014 P006 | ELYRIA FOUNDRY | ELYRIA |
| 0247040014 P007 | ELYRIA FOUNDRY | ELYRIA |
| 0278000025 P008 | ELLWOOD ENGINEERED CASTINGS | HUBBARD |
| 0285010001 P002 | THE QUALITY CASTINGS COMPANY | ORRVILLE |
| 0320010001 P020 | GMC POWERTRAIN DIV. | DEFIANCE |
| 0320010001 P098 | GMC POWERTRAIN DIV. | DEFIANCE |
| 0320010001 P161 | GMC POWERTRAIN DIV. | DEFIANCE |
| 0320010001 P196 | GMC POWERTRAIN DIV. | DEFIANCE |
| 0320010001 P253 | GMC POWERTRAIN DIV. | DEFIANCE |
| 0320010001 P284 | GMC POWERTRAIN DIV. | DEFIANCE |
| 0320010001 P289 | GMC POWERTRAIN DIV. | DEFIANCE |
| 0320010001 P380 | GMC POWERTRAIN DIV. | DEFIANCE |