| Relationships | Role | Relationship Start | Relationship End |
| Citicorp Mercantil Participacoes E Investimentos Ltda. | Parent | 4/1/1995 | 4/29/1998 |
| Norchem S.A. Sociedade De Investimento - Capital Estrangeiro | Parent | 6/1/1993 | 9/29/1993 |
| Relationships | Role | Relationship Start | Relationship End |
| Citicorp Mercantil Participacoes E Investimentos Ltda. | Parent | 4/1/1995 | 4/29/1998 |
| Norchem S.A. Sociedade De Investimento - Capital Estrangeiro | Parent | 6/1/1993 | 9/29/1993 |