October 2010

28.10.2010
Ad Hoc Notice

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the leading telecommunications provider in Russia and the CIS, announces that “COMSTAR – United TeleSystems” JSC (“Comstar” - LSE: CMST), a majority-owned subsidiary of MTS, has released a press release on its decision to reorganize its wholly-owned subsidiary CJSC Comstar-Regions through the integration of sixteen regional incorporated subsidiaries into the company.

28.10.2010
MTS Announces Plans to Issue Ruble-Denominated Bonds

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the leading telecommunications provider in Russia and the CIS, plans to start placement of the series 07 and series 08 ruble-denominated bonds totaling RUB 25 billion on November 16, 2010.

14.10.2010
MTS Completes Redemption of $400 million 2010 Eurobond

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the leading telecommunications provider in Russia and the CIS, announces the redemption of its $400 million Eurobond which matured on October 13, 2010.

07.10.2010
MTS Announces Final Results of VTO for Comstar Shares

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the leading telecommunications provider in Russia and the CIS, today announced the final results of its Voluntary Tender Offer (“VTO”) to COMSTAR – United TeleSystems JSC (“Comstar” – LSE: CMST) shareholders, for which the tender period closed on September 21, 2010.
MTS has acquired 37,614,087 ordinary Comstar shares, or approximately 9.0% of Comstar’s issued share capital, for a total cost of RUB 8.28 billion (approximately $271.89 million1), excluding fees and expenses relating to the VTO2. The transaction was financed through MTS’ available cash reserves. This brings MTS’ total ownership stake in Comstar to 70.97% of Comstar’s issued share capital (or 73.33% excluding treasury shares).

07.10.2010
Ad Hoc Notice

Moscow, Russian Federation - Mobile TeleSystems OJSC (the "Company" or "MTS" - NYSE: MBT) announces that it has sold a 100% stake in ZAO Teleforum.

01.10.2010
Comstar Tentatively Completes Transactions Involving the Sale of the Svyazinvest Stake

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the leading telecommunications provider in Russia and the CIS, announces that COMSTAR – United TeleSystems JSC (“Comstar” – LSE: CMST), a majority-owned subsidiary of MTS, and OJSC Rostelecom (“Rostelecom”) have completed a series of transactions involving the sale by the Comstar group of companies to Rostelecom of the 25%+1 share in the charter capital of Telecommunication Investment Joint Stock Company (“Svyazinvest”). In conjunction with these transactions, Rostelecom transferred RUB 26 billion to the Comstar group of companies.

Contact investor relations:

+ 7 495 223 20 25 ir@mts.ru

MTS Investor Relations
App for iPad