| Relationships | Role | Relationship Start | Relationship End |
| Universale-Bau Ag | Parent | 12/31/1994 | 1/9/1995 |
| Universale-Bau Ag | Parent | 6/5/1991 | 12/30/1994 |
| Mg Ne-Produkthandel Gmbh | Parent | 12/31/1991 | 12/30/1994 |
| Universale-Bau Ag | Parent | 5/2/1988 | 6/4/1991 |
| Relationships | Role | Relationship Start | Relationship End |
| Universale-Bau Ag | Parent | 12/31/1994 | 1/9/1995 |
| Universale-Bau Ag | Parent | 6/5/1991 | 12/30/1994 |
| Mg Ne-Produkthandel Gmbh | Parent | 12/31/1991 | 12/30/1994 |
| Universale-Bau Ag | Parent | 5/2/1988 | 6/4/1991 |