In January 2014, Mr. Kübler assumed the position of Senior Vice President of the Corporate Operating Office of Deutsche Telekom, our significant stockholder and a leading integrated telecommunications company, and he reports directly to the Chief Executive Officer of Deutsche Telekom. From July 2009 to December 2013, Mr. Kübler served as Senior Vice President Group Controlling at Deutsche Telekom. In this position, he was responsible for the financial planning, analysis and steering of the overall Deutsche Telekom Group as well as the financial management of central headquarters and shared services. From November 2003 to June 2009, Mr. Kübler served as Chief Financial Officer of T-Mobile Deutschland GmbH, the mobile operations of Deutsche Telekom in Germany, now known as Telekom Deutschland GmbH (a wholly owned subsidiary of Deutsche Telekom). Mr. Kübler studied Business Administration at H.E.C. in Paris and the Universities of Bonn and Cologne. He holds a doctoral degree from the University of Cologne. Qualifications and Skills Supporting Election to the Board: Expertise in global telecommunications industry Core business, management and leadership skills Complex financial management experience