| Relationships | Role | Relationship Start | Relationship End |
| Britannia Limited | Parent | 12/1/1992 | 8/31/2001 |
| Brown Brothers (Polystyrene) Limited | Subsidary | 12/1/1992 | 1/1/1994 |
| Relationships | Role | Relationship Start | Relationship End |
| Britannia Limited | Parent | 12/1/1992 | 8/31/2001 |
| Brown Brothers (Polystyrene) Limited | Subsidary | 12/1/1992 | 1/1/1994 |