| Relationships | Role | Relationship Start | Relationship End |
| Boston World Holding Corporation | Parent | 5/19/1996 | 10/10/1997 |
| Ferrovia Centro Atlantico S.A. | Subsidary | 4/1/1997 | 10/9/1997 |
| Boston Administracao E Empreendimentos Ltda. | Subsidary | 5/19/1996 | 9/30/1997 |