November 2009

23.11.2009
MTS Announces Subscriber Growth Numbers for October 2009

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 97.16 million users on October 31, 2009.

23.11.2009
MTS Announces Signing of Memorandum of Understanding (MOU) with Svyazinvest and Sistema on Reorganization of Assets

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” - NYSE: MBT), today announces that “COMSTAR – United TeleSystems” JSC (“Comstar” - LSE: CMST), a majority-owned subsidiary of MTS, has concluded a non-binding MOU with OAO Svyazinvest and AFK Sistema to begin negotiations over the reorganization of certain assets, that if realized could ultimately lead to the disposal of Comstar’s stake in Svyazinvest and the increase in its ownership stake in OAO Moscow City Telephone Network (MGTS).

20.11.2009
MTS Secures ECA Financing

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the largest mobile phone operator in Russia and the CIS, announces that it has secured a credit facility in the amount of up to approximately $1,074 million backed by Sweden’s Export Credit Agency EKN1 to be used for the development of the Company’s mobile networks through purchases of equipment from Ericsson, the world's leading provider of technology and services to telecom operators.

13.11.2009
Mobile TeleSystems Announces Financial Results for the Third Quarter Ended September 30, 2009

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” - NYSE: MBT), today announces its consolidated US GAAP financial results for the three months ended September 30, 2009.

06.11.2009
S&P Affirms MTS Credit Rating with Stable Outlook

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the largest mobile phone operator in Russia and the CIS, announces that Standard & Poor's Ratings Services has removed MTS from its CreditWatch Negative list and affirmed existing bond ratings at BB level. The outlook has been changed from positive to stable.

05.11.2009
MTS Amends EUR 300 Million Credit Facility

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the largest mobile phone operator in Russia and the CIS, announces that it has successfully renegotiated the terms of the EUR 300 million credit facility from Gazprombank as part of the Company’s efforts to reduce the interest rates of its debt portfolio.

05.11.2009
Third Quarter 2009 Financial Results Announcement and Conference Call

The management of Mobile TeleSystems (MTS) will be holding a conference call to discuss the Company's Third Quarter 2009 Financial and Operating Results on Friday, November 13, 2009.

Contact investor relations:

+ 7 495 223 20 25 ir@mts.ru

MTS Investor Relations
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