Evonik announced that supervisory board had resolved unanimously to end the term in office of Patrik Wohlhauser as chief operating officer (COO), effective June 30,2015 and appointing Ralph Sven Kaufmann as his successor. Kaufmann will take up his post on July 01, 2015. Evonik's supervisory board chairman, Werner Muller, announced that Wohlhauser was leaving the company on highly amicable terms.