November 2010

29.11.2010
Fitch Affirms MTS Credit Rating and Assigns Positive Outlook

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the leading telecommunications provider in Russia and the CIS, announces that Fitch Ratings has affirmed the Company’s existing bond ratings at BB+ level and revised the credit outlook from Stable to Positive.

22.11.2010
Ad Hoc Notice

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the leading telecommunications provider in Russia and the CIS, announces that an international arbitration tribunal constituted under the rules of the London Court of International Arbitration (LCIA) has rendered an award with regards to arbitration commenced by Nomihold Securities Inc. (“Nomihold”) in April 2007. The ruling requires MTS Finance to honor Nomihold's option to sell MTS Finance the remaining 49% stake in Tarino Limited for $170 million, plus interest, $5.88 million in dividends that the tribunal ruled were payable to Nomihold under the option agreement, and to compensate it for related costs.

18.11.2010
Mobile TeleSystems Announces Financial Results for the Third Quarter Ended September 30, 2010

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” - NYSE: MBT), the leading telecommunications provider in Russia and the CIS, today announces its unaudited US GAAP financial results for the three months ended September 30, 2010.

17.11.2010
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 its third quarter 2010 financial and operating results on November 16, 2010.

16.11.2010
MTS Issues Ruble-Denominated Bonds

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the leading telecommunications provider in Russia and the CIS, has completed the placement of Series 07 and Series 08 ruble-denominated bonds totaling RUB 25 billion on November 16, 2010. The bonds will be listed in the “A1” quotation list on the Moscow Interbank Currency Exchange (MICEX).

16.11.2010
MTS to Acquire Sistema Telecom

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the leading telecommunications provider in Russia and the CIS, announces its plans to acquire 100% of Sistema Telecom LLC (“Sistema Telecom”), a non-operating subsidiary of JSFC Sistema (“Sistema” – LSE: SSA) following the signing of a non-binding indicative offer. The acquisition price is RUB 11.59 billion ($379.01 million1). In addition, MTS will assume debt considerations totaling RUB 1.80 billion ($58.93 million), which include the settlement of RUB 1.35 billion ($44.04 million) in debts between MTS subsidiaries and Sistema Telecom.

15.11.2010
MGTS Acquires Stake in Intellect Telecom

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the leading telecommunications provider in Russia and the CIS, announces that Public Joint Stock Company Moscow City Telephone Network (“MGTS”), a majority-owned subsidiary of COMSTAR–United TeleSystems OJSC (LSE: CMST), acquired a 39.01% stake in Intellect Telecom OJSC (“Intellect Telecom”), a research and development subsidiary of JSFC Sistema (“Sistema” – LSE: SSA), for RUB 378.5 million.

15.11.2010
MTS Allocated LTE Frequencies in Armenia

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the leading telecommunications provider in Russia and the CIS, announces allocation of frequencies that will enable the Company to introduce 4G services in Armenia.

12.11.2010
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, issued a release informing that Public Joint Stock Company Moscow City Telephone Network (“MGTS”), a majority-owned subsidiary of Comstar, received a mandatory tender offer from Sistema-Inventure CJSC on November 11, 2010, to acquire 1,625,691 ordinary shares in MGTS, or 2.04% of MGTS ordinary shares, at a price of RUB 436.20 per share.

11.11.2010
Third Quarter 2010 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 2010 Financial and Operating Results on Thursday, November 18, 2010.

03.11.2010
MTS Joins the Wholesale Applications Community

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the leading telecommunications provider in Russia and the CIS, announces that it has joined the Wholesale Applications Community (WAC), an international alliance of telecommunications companies committed to building a global open platform for development and distribution of mobile applications.

02.11.2010
MTS Launches 3G Networks in All Markets of Operation

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the leading telecommunications provider in Russia and the CIS, announces the commercial launch of its 3G network in Turkmenistan that completes the deployment of "third generation" networks in all markets of operation of the MTS Group. Today, MTS offers high-speed mobile Internet access to residents and visitors throughout Russia, Uzbekistan, Ukraine, Belarus, Armenia and Turkmenistan.

02.11.2010
MTS Ordinaries Moved to the “A1” Listing on MICEX

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the leading telecommunications provider in Russia and the CIS, announces that it has received a written notification from the Moscow Interbank Currency Exchange (MICEX) informing the Company that its ordinary shares have been moved from quotation list “B” to quotation list “A1”. The shares are traded on MICEX under ticker symbol “MTSI”.

Contact investor relations:

+ 7 495 223 20 25 ir@mts.ru

MTS Investor Relations
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