| Relationships | Role | Relationship Start | Relationship End |
| Thai Investment & Securities Public Company Limited | Parent | 7/1/1995 | 1/30/1996 |
| Thai Investment & Securities Public Company Limited | Parent | 11/1/1988 | 6/30/1995 |
| Relationships | Role | Relationship Start | Relationship End |
| Thai Investment & Securities Public Company Limited | Parent | 7/1/1995 | 1/30/1996 |
| Thai Investment & Securities Public Company Limited | Parent | 11/1/1988 | 6/30/1995 |