July 2011

22.07.2011
Expiration of the Three Months Period From the Registration of Share Issuance Report

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” or the “Company” – NYSE: MBT), the leading telecommunications provider in Russia and the CIS, announces that the 3-months period from the registration of the Company’s share issuance report by the Federal Financial Markets Service of Russia (“FFMS”), has expired. It is expected that within two weeks’ time the additional issue of the MTS ordinary shares will merge with the main share issue. The main share issue trades on the Moscow Interbank Currency Exchange ("MICEX") under ticker symbol MTSI and has a state registration number 1-01-04715-A.

11.07.2011
MTS Amends Organizational Structure

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” or the “Company” – NYSE: MBT), the leading telecommunications provider in Russia and the CIS, announces changes to the organizational structure of the Company as part of its efforts at strengthening operational efficiency and streamlining the decision-making process on the regional level in Russia. As result of these changes, MTS’ Management Board increases from 12 to 14 members.

08.07.2011
MTS Completes Secondary Placement of its Series 02 Ruble Bond

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” or the “Company” – NYSE: MBT), the leading telecommunications provider in Russia and the CIS, announces that it has successfully completed a secondary placement of its series 02 ruble bond on the Moscow Interbank Currency Exchange (“MICEX”). As the result of the placement, the Company raised approximately RUB 6.3 billion. The bond issue was priced at 100.35% of the face value and was oversubscribed by more than 100%. The proceeds will be used for general corporate needs.

04.07.2011
MTS Commences Secondary Placement of its Series 02 Ruble Bond

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” or the “Company” – NYSE: MBT), the leading telecommunications provider in Russia and the CIS, announces that it has commenced a secondary placement of its series 02 ruble bond on the Moscow Interbank Currency Exchange (“MICEX”). The books are to be closed on July 7, 2011. Under the terms of the placement, the Company may raise up to RUB 8.7 billion with the proceeds used for general corporate needs.

Contact investor relations:

+ 7 495 223 20 25 ir@mts.ru

MTS Investor Relations
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