Conferences Industrial Circle
| Year | Location |
| 2018 | Leuna |
| 2016 | Hannover |
| 2014 | Wittenberg |
| 2012 | Frankfurt-Fechenheim |
| 2010 | Jena |
| 2008 | Darmstadt |
| 2006 | Berlin |
| 2004 | Ludwigshafen |
| 2003 | Merseburg |
| 2002 | Leverkusen |
| 2000 | Wolfen/Bitterfeld |
| 1999 | Schwarzheide/Senftenberg |
| 1998 | Frankfurt-Höchst |
| 1996 | Merseburg |
Further information here