| Relationships | Role | Relationship Start | Relationship End |
| Bangkok E'service Ltd. | Parent | 11/1/1994 | 5/11/1995 |
| Bangkok E'service Ltd. | Parent | 8/1/1992 | 1/30/1993 |
| Relationships | Role | Relationship Start | Relationship End |
| Bangkok E'service Ltd. | Parent | 11/1/1994 | 5/11/1995 |
| Bangkok E'service Ltd. | Parent | 8/1/1992 | 1/30/1993 |