| Relationships | Role | Relationship Start | Relationship End |
| Portigon Ag | Parent | 1/19/1994 | 8/31/2001 |
| Westek, Inc. | Subsidary | 12/31/1995 | 8/31/2001 |
| Pergament Home Centers, Inc. | Subsidary | 12/31/1998 | 12/22/1999 |
| Pergament Home Centers, Inc. | Subsidary | 12/31/1996 | 12/30/1998 |
| Pergament Home Centers, Inc. | Subsidary | 12/31/1995 | 12/30/1996 |