| Relationships | Role | Relationship Start | Relationship End |
| Dresdner Bank Aktiengesellschaft | Parent | 12/31/1999 | 6/13/2000 |
| Heidelberger Zement Aktiengesellschaft | Subsidary | 12/31/1999 | 6/13/2000 |
| Relationships | Role | Relationship Start | Relationship End |
| Dresdner Bank Aktiengesellschaft | Parent | 12/31/1999 | 6/13/2000 |
| Heidelberger Zement Aktiengesellschaft | Subsidary | 12/31/1999 | 6/13/2000 |