Dr. Wolfgruber was Chief Executive Officer of Altana AG, a global specialty chemicals company, a position he held from 2007 until his retirement in January 2016. He joined Altana in 2002, as President and Chief Executive Officer of Altana Chemie AG and a member of the management board of Altana AG. Prior to joining Altana, he held a number of management positions at Wacker-Chemie in the United States and Europe from 1985 through 2002. Dr. Wolfgruber is a Chairman of Altana AG and a Chairman of Lanxess AG, a leading global manufacturer of synthetic rubber and chemical intermediates. He also served as a member of the Supervisory Board of Grillo-Werke AG from 2014 through March 2021, a manufacturer and supplier of zinc alloy products and chemicals, and was a Chairman of Ardex Group, a global supplier of high-performance specialty building materials from 2015 through March 2021.