| Relationships | Role | Relationship Start | Relationship End |
| Citico, Sgps, Lda. | Parent | 1/31/1997 | 4/30/2000 |
| International Finance Associates Sgps-Sociedade Gestora De Participacoes Sociais, S.A. | Parent | 12/3/1993 | 1/30/1997 |
| Citibank Overseas Investment Corporation | Parent | 1/15/1988 | 12/2/1993 |
| International Finance Associates Sgps-Sociedade Gestora De Participacoes Sociais, S.A. | Subsidary | 7/31/1997 | 12/30/1998 |