| Relationships | Role | Relationship Start | Relationship End |
| Bt Australia Limited | Parent | 9/1/1988 | 9/29/1999 |
| Bt Nominees Pty. Limited | Subsidary | 12/31/1998 | 9/29/1999 |
| Bt Finance Pty. Limited | Subsidary | 12/31/1998 | 9/29/1999 |
| Chifley Services Pty Limited | Subsidary | 12/31/1998 | 9/29/1999 |
| Erech Pty. Limited | Subsidary | 9/1/1988 | 7/1/1993 |
| Rivendell Limited | Subsidary | 1/1/1992 | 6/28/1992 |