| Relationships | Role | Relationship Start | Relationship End |
| Antofagasta Plc | Parent | 3/27/2001 | 12/19/2002 |
| Quinenco S.A. | Subsidary | 3/27/2001 | 12/19/2002 |
| Relationships | Role | Relationship Start | Relationship End |
| Antofagasta Plc | Parent | 3/27/2001 | 12/19/2002 |
| Quinenco S.A. | Subsidary | 3/27/2001 | 12/19/2002 |