| Relationships | Role | Relationship Start | Relationship End |
| Chl Comercio E Participacoes Ltda. | Parent | 3/6/1993 | 3/10/1993 |
| Citicorp Mercantil Participacoes E Investimentos Ltda. | Parent | 3/1/1993 | 3/5/1993 |
| Telecomunicacoes Brasileiras S.A. | Subsidary | 3/1/1993 | 3/5/1993 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Chl Comercio E Participacoes Ltda. | Buyer | Discontinued | 3/11/1993 |