| Relationships | Role | Relationship Start | Relationship End |
| Compagnie Financiere De Paribas | Parent | 12/31/1992 | 3/4/1998 |
| Poliet | Parent | 12/31/1991 | 12/30/1992 |
| Poliet | Parent | 12/31/1983 | 12/30/1991 |
| Essroc Corp. | Subsidary | 12/31/1991 | 3/4/1998 |
| Eurocem, Inc. | Subsidary | 12/31/1983 | 12/30/1991 |
| Lake Ontario Cements Ltd. | Subsidary | 12/31/1987 | 12/30/1991 |