| Relationships | Role | Relationship Start | Relationship End |
| Gs Global Infrastructure Partners I Cooperatieve U.A. | Parent | 9/21/2008 | |
| Gs Institutional Infrastructure Matador C.V. | Parent | 9/21/2008 | |
| Red De Carreteras De Occidente, S. De R.L. De C.V. | Subsidary | 8/14/2009 |