Financial results
Official filings
Announcements

Official filings

8.05.2008

MTS amends employee remuneration program

Moscow, Russian Federation, May 7, 2008 – Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the largest mobile phone operator in Russia and the CIS, announced the expansion of its employee remuneration program.

16.04.2008

Mobile TeleSystems announces financial results for the fourth quarter and full year ended December 31, 2007

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” - NYSE: MBT), today announced its consolidated US GAAP financial results for the three months (unaudited) and full year ended December 31, 2007.

16.04.2008

Decisions of the Board of Directors

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the largest mobile phone operator in Russia and the CIS, announced the decisions reached at the Board of Directors meeting held on April 14, 2008.

25.03.2008

Ad Hoc Notice

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the largest mobile phone operator in Russia and the CIS, announces the acquisition of Bastion LLC.

19.03.2008

MTS announces subscriber growth numbers for February 2008

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the largest mobile phone operator in Russia and the CIS, announces that its consolidated subscriber base reached 83.88 million users on February 29, 2008.

18.02.2008

MTS announces subscriber growth numbers for January 2008

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the largest mobile phone operator in Russia and the CIS, announces that its consolidated subscriber base reached 82.95 million users on January 31, 2008.

18.02.2008

MTS elects a new Board of Directors

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the largest mobile phone operator in Russia and the CIS, announced the election of a new Board of Directors (BoD) by the Extraordinary General Meeting of shareholders (EGM) held earlier today.

15.02.2008

MTS increases ownership in its Omsk subsidiary to 100%

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the largest mobile phone operator in Russia and the CIS, today announced that it has acquired the remaining 9% stake in its subsidiary in Omsk.

31.01.2008

MTS completes redemption of $400 million Eurobond

Moscow, Russian Federation — Mobile TeleSystems OJSC («MTS» — NYSE: MBT), the largest mobile phone operator in Russia and the CIS, today announced the redemption of its $400 million Eurobond which matured on January 30, 2008.

22.01.2008

MTS announces subscriber growth numbers for December 2007

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the largest mobile phone operator in Russia and the CIS, announces that its consolidated subscriber base reached 81.97 million users on December 31, 2007.










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