| Relationships | Role | Relationship Start | Relationship End |
| Mg Technologies Ag | Parent | 12/31/1992 | 12/30/1993 |
| Cm Industries Inc. | Parent | 12/31/1991 | 12/30/1992 |
| Chemetall Gmbh | Parent | 9/23/1984 | 12/30/1989 |
| Epitronics Corporation | Subsidary | 12/31/1991 | 12/30/1993 |
| Epitronics Corporation | Subsidary | 12/31/1989 | 12/30/1991 |
| Epitronics Corporation | Subsidary | 9/23/1984 | 12/30/1989 |