OREANDA-NEWS. Mobile TeleSystems OJSC ("MTS" — NYSE: MBT), the largest mobile phone operator in Russia and the CIS, announces that it has appointed a new chief marketing officer (CMO), Mrs. Cynthia Gordon.

Mrs. Gordon has 15 years of experience in key marketing positions in the largest telecommunications companies. Prior to joining MTS, she held the position of Vice-President in business marketing at Orange for three years and served on business boards of Orange and its mother company France Telecom.

From 2001-2003, Mrs. Gordon worked as the marketing director of Orange in the United Kingdom. She also has experience of working at fixed-line (British Telecom) and broadband Internet companies (Demon/Scottish Telecom).

Mr. Grzegorz Esz, the Company’s CMO since October 2005, is leaving MTS due to family reasons that require him to return to his native Poland. He will continue to work with the Company as an advisor to the President of MTS on a range of matters.