| source | facility | location |
| 0243161213 L003 | METAL SEAL & PRODUCTS, INC. | WILLOUGHBY |
| 0243161213 Z002 | METAL SEAL & PRODUCTS, INC. | WILLOUGHBY |
| 0448010246 Z010 | SUN COMPANY, INC. | OREGON |
| 0641090010 Z118 | WHEELING-PITTSBURGH STEEL CORPORATION - STEUBENVILLE | STEUBENVILLE |
| 1318031627 L001 | MORGAN ELECTRO CERAMICS | BEDFORD |
| 1318031627 L004 | MORGAN ELECTRO CERAMICS | BEDFORD |
| 1318031627 Z001 | MORGAN ELECTRO CERAMICS | BEDFORD |
| 1576000073 P047 | CANTON DROP FORGE | CANTON |