| Relationships | Role | Relationship Start | Relationship End |
| J.P. Morgan International Finance Limited | Parent | 7/1/1988 | 5/30/1996 |
| Chemco International Inc. | Parent | 7/1/1988 | 10/1/1991 |
| Chemco International Inc. | Parent | 12/31/1980 | 6/30/1988 |
| J.P. Morgan International Finance Limited | Parent | 12/31/1980 | 9/29/1983 |
| Norchem Holdings E Negocios S.A. | Subsidary | 5/2/1988 | 6/30/1989 |