| Relationships | Role | Relationship Start | Relationship End |
| J.P. Morgan International Inc. | Parent | 6/30/2007 | 8/15/2011 |
| J.P. Morgan International Inc. | Parent | 11/1/1993 | 6/29/2007 |
| Chemco International Inc. | Parent | 6/1/1990 | 10/31/1993 |
| Nortel Inversora, S.A. | Subsidary | 6/2/1992 | 5/30/1996 |
| Nortel Inversora, S.A. | Subsidary | 11/1/1990 | 6/1/1992 |