| Relationships | Role | Relationship Start | Relationship End |
| Citigroup Inc. | Parent | 10/17/2007 | 2/8/2013 |
| Telecomunicaciones Holding Mx, S. De R.L. De C.V. | Parent | 10/17/2007 | 2/8/2013 |
| Gestion Profesional De Cartera, S. De R.L. De C.V. | Subsidary | 10/18/2007 | 12/25/2012 |