| Relationships | Role | Relationship Start | Relationship End |
| Comerica Bank | Parent | 12/31/1976 | 5/11/1988 |
| Comerica Incorporated | Parent | 5/31/1973 | 12/30/1976 |
| Sofinsa, S.A. De C.V. | Subsidary | 7/17/1981 | 5/11/1988 |
| Comerica Asia Limited | Subsidary | 5/18/1984 | 3/31/1985 |