| Relationships | Role | Relationship Start | Relationship End |
| Copperweld Corporation | Parent | 12/31/1992 | 9/22/1999 |
| Metallon Materials Acquisition Corp. | Subsidary | 6/9/1995 | 9/22/1999 |
| Relationships | Role | Relationship Start | Relationship End |
| Copperweld Corporation | Parent | 12/31/1992 | 9/22/1999 |
| Metallon Materials Acquisition Corp. | Subsidary | 6/9/1995 | 9/22/1999 |