| Relationships | Role | Relationship Start | Relationship End |
| Bt Science Holdings Limited | Parent | 9/16/1995 | 9/30/1995 |
| Bt Australia Limited | Parent | 12/31/1980 | 9/15/1995 |
| Quexton Pty. Ltd. | Subsidary | 6/30/1981 | 9/30/1995 |
| Relationships | Role | Relationship Start | Relationship End |
| Bt Science Holdings Limited | Parent | 9/16/1995 | 9/30/1995 |
| Bt Australia Limited | Parent | 12/31/1980 | 9/15/1995 |
| Quexton Pty. Ltd. | Subsidary | 6/30/1981 | 9/30/1995 |