WESEL, Germany – Dr. Stephan Glander has been appointed the new Managing Director of BYK-Chemie GmbH, based in Wesel, Germany, and worldwide President of BYK Additives & Instruments, the largest division in terms of sales of the specialty chemicals group ALTANA. He will take up these roles as of July 1, 2015, succeeding Dr. Christoph Schlu?nken, who became a member of the ALTANA Management Board in November 2014.