Mr. Ron Sommer

Chairman of the Board — Non-Executive Director

Ron Sommer was appointed as the Chairman of the Board of Directors of MTS in June 2009.

In 2005, Mr. Sommer was elected to the Board of Directors at Sistema as an independent director. Since 2003 he worked as Chairman of the International Advisory Board at Sistema. Between May 1995 and July 2002, he was CEO of Deutsche Telekom AG. From 1980 to 1995, Ron Sommer held a number of positions with Sony Corporation, including as CEO of Sony Deutschland, COO of Sony Corporation of America and COO of Sony Europe.

Ron Sommer is a member of the Board of Directors of Motorola, Tata Consultancy Services, Weather Investments, Munich Reinsurance and a member of the International Advisory Board of Blackstone Group.

Ron Sommer received his PhD degree in mathematics from the University of Vienna.