Dr. Christoph Kleiner (1961, Swiss citizen, doctorate in chemistry from the University of Basel) has been member of Executive Management of the EMS Group since August 2020. From 1990 to 1997, Dr. Christoph Kleiner held various leadership positions in research & development and production of polymer additives with Ciba Geigy. From 1998 to 2007 he was responsible for the manufacture of active pharmaceutical ingredients in Switzerland and the USA for the pharmaceutical company Siegfried and latterly for strategic projects and acquisitions of the Siegfried Group. Following this, Dr. Kleiner joined Quadrant as technical director of Quadrant EPP Europe, before becoming Managing Director EPP Global Operations after the take-over by Mitsubishi Chemical and being responsible for all worldwide production locations of Mitsubishi Chemical Advanced Materials until mid-June 2020.