| Relationships | Role | Relationship Start | Relationship End |
| Gsmp 2006 Offshore Investment Fund, Ltd. | Parent | 9/21/2008 | |
| Gsmp 2006 Offshore Holdings International, Ltd. | Subsidary | 9/21/2008 | |
| Sevres Ii S.A.R.L. | Subsidary | 9/21/2008 | 3/25/2015 |
| Gsmp 2006 Offshore Holdings International (Brenntag), Ltd. | Subsidary | 9/21/2008 | 12/9/2014 |
| Gordon Holding Guernsey V Limited | Subsidary | 9/21/2008 | 12/9/2014 |