Wacker Chemie, a Munich-based chemical group, will see its current executive board member and personnel director, Wilhelm Sittenthaler, step down on 31 December 2012.

Sittenthaler notified the board that he would no longer be able to continue on for another term, after 30 years at the company, due to personal reasons. His executive board contract expires at the end of April 2013 and Sittenthaler requested to be relieved of his duties at the end of 2012, to which the board acquiesced.

As he departs, Tobias Ohler will be joining the executive board, effective 1 January 2013. Ohler’s contract runs for three years. Since February 2010, he has served as the executive board member and personnel director of Wacker’s subsidiary Siltronic. Ohler joined Wacker Chemie in 2005 as head of corporate controlling and, in 2008, was selected to lead the company’s raw materials procurement division. He studied economics and business administration and industrial engineering in France, Germany and Australia, and went on to receive his PhD in economics from the University of Oldenburg, Germany.