| Relationships | Role | Relationship Start | Relationship End |
| Brazil Holdings Inc. Limited | Parent | 5/1/1990 | 11/30/1991 |
| Telecomunicacoes Brasileiras S.A. | Subsidary | 7/1/1990 | 11/1/1991 |
| Relationships | Role | Relationship Start | Relationship End |
| Brazil Holdings Inc. Limited | Parent | 5/1/1990 | 11/30/1991 |
| Telecomunicacoes Brasileiras S.A. | Subsidary | 7/1/1990 | 11/1/1991 |