| Relationships | Role | Relationship Start | Relationship End |
| Groupe Bruxelles Lambert | Parent | 12/31/1993 | 6/22/1998 |
| Pargesa Holding S.A. | Parent | 12/31/1996 | 6/22/1998 |
| Pargesa Holding S.A. | Parent | 12/31/1995 | 12/30/1996 |
| Pargesa Holding S.A. | Parent | 12/31/1993 | 12/30/1995 |
| Pargesa Holding S.A. | Parent | 12/31/1992 | 12/30/1993 |
| Imerys | Subsidary | 12/31/1992 | 6/22/1998 |
| Societe Francaise Percier Gestion | Subsidary | 12/31/1992 | 12/30/1995 |