| Relationships | Role | Relationship Start | Relationship End |
| Bt Asia Limited | Parent | 8/8/1988 | 12/30/1999 |
| Bt Asia Synergies Limited | Parent | 4/30/1982 | 8/7/1988 |
| Bt Asia Investment Co., Ltd. | Subsidary | 11/1/1991 | 8/31/2001 |
| Relationships | Role | Relationship Start | Relationship End |
| Bt Asia Limited | Parent | 8/8/1988 | 12/30/1999 |
| Bt Asia Synergies Limited | Parent | 4/30/1982 | 8/7/1988 |
| Bt Asia Investment Co., Ltd. | Subsidary | 11/1/1991 | 8/31/2001 |