| Relationships | Role | Relationship Start | Relationship End |
| Bankamerica International Investment Corporation | Parent | 5/1/1992 | 8/30/1994 |
| Telecomunicacoes Brasileiras S.A. | Subsidary | 5/1/1992 | 6/29/1993 |
| Relationships | Role | Relationship Start | Relationship End |
| Bankamerica International Investment Corporation | Parent | 5/1/1992 | 8/30/1994 |
| Telecomunicacoes Brasileiras S.A. | Subsidary | 5/1/1992 | 6/29/1993 |