Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” or the “Company” – NYSE: MBT), the leading telecommunications provider in Russia and the CIS, announces appointment of Vasyl Latsanych to the position of Vice President, Marketing.

Vasyl Latsanych has a wealth of experience in sales and marketing management in the largest CIS markets – in Russia and Ukraine. He joined MTS in 2001 as a head of MTS Ukraine marketing department. In 2005 he was promoted to the position of MTS Ukraine Marketing Director. In March 2011 Mr. Latsanych was appointed MTS Ukraine General Director.

“In Ukraine, Vasyl accomplished rebranding of the Company’s operations and designed a comprehensive portfolio of products for corporate clients under conditions of intense competition, price pressures and economic uncertainty. Vasyl coordinated the launch of 3G products and services on the base of CDMA-450 network that allow our customers in Ukraine to enjoy high-speed mobile internet access. His expertise in administration and marketing coupled with his ability to deliver and extensive knowledge of the CIS markets enable Vasyl to take into account a variety of market factors and make decisions that maximize value of the business. In his new role Vasyl will be charged with defining and implementing Group’s marketing strategy, developing new product lines, enhancing customer service and strengthening Group’s market positions,” remarked Mr. Andrei Dubovskov, President and Chief Executive Officer of MTS.