| Date | Title, short description | |
|---|---|---|
| 04.10 07.10.2011 | Vakbeurs Riolering en Stedelijk watermanagement - 2011  (Hertogenbosch) Exhibition of Services in the Field of Urban Water Supply and Canalization | |
| 11.01 14.01.2011 | InfraTech - 2011  (Rotterdam) Exhibition of Underground Development and Road Construction Technologies |