Yritysostot
Viimeisimmät yritysostot
| Vuosi | Yhtiö |
| 2015 | Kempe Engineering, Biomin, Kovit Engineering, Sinter Plant Services |
| 2014 | Republic Alternative Technologies, KALOGEO Anlagenbau GmbH |
| 2013 | Scanalyse |
| 2012 | Numcore, Demil Manutenção Industrial Ltda, TME Group, Backfill Specialists |
| 2011 | Kiln Services Australia, Energy Products of Idaho, VPF, ASH DEC Umvelt |
| 2010 | Larox, Millteam, Ausmelt, Edmeston |
| 2009 | |
| 2008 | Auburn Group |
| 2007 | Chena |