| Relationships | Role | Relationship Start | Relationship End |
| Tisco Finance Public Company Limited | Parent | 1/1/1997 | 5/30/1997 |
| Tisco Finance Public Company Limited | Parent | 7/31/1996 | 10/30/1996 |
| Thai Investment & Securities Public Company Limited | Parent | 11/1/1989 | 7/30/1996 |