January 2011

31.01.2011
Ad Нос Notice

Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the leading telecommunications provider in Russia and the CIS, announces that it has been notified by Mobile TeleSystems Finance S.A. (“MTS Finance”), a wholly owned subsidiary of MTS, that interest payments that were due and payable under the 8.00% notes due January 28, 2012 issued by MTS Finance (the “Notes”) on January 28, 2011 (the "Interest Payments") were not transferred to holders of the Notes.  The funds are currently being held by The Bank of New York Mellon (“BNY”), in its capacity as trustee of the Notes.

28.01.2011
Ad Hoc Notice

Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the leading telecommunications provider in Russia and the CIS, announces that it has been notified by Mobile TeleSystems Finance S.A. (“MTS Finance”), a wholly owned subsidiary of MTS, that MTS Finance was served with a freezing order issued by the English High Court of Justice on January 26, 2011 (the “Order”).

24.01.2011
Purchase of the Notes due in 2012

NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION TO ANY PERSON LOCATED IN THE REPUBLIC OF ITALY. OTHER OFFER AND DISTRIBUTION RESTRICTIONS APPLY.

24.01.2011
Consent Solicitation on the Notes due in 2020

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS”, “the Company” or the “Guarantor” – NYSE: MBT), the leading telecommunications provider in Russia and the CIS, announces that MTS International Funding Limited1 (the “Issuer”), at the request of the Company, has commenced a consent solicitation in respect of its senior unsecured USD-denominated Eurobonds in the amount of $750 million with an annual interest rate of 8.625% and maturity in June 2020 (the “Notes”). The early instruction deadline for submission of electronic voting instructions is 3.00 p.m. (London time) on February 9, 2011. The final voting deadline for submission of electronic voting instructions is 3:00 p.m. (London time) on February 11, 2011.

21.01.2011
MTS Invites the Government of Turkmenistan to Resolve the Dispute through Negotiations

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the leading telecommunications provider in Russia and the CIS, announces that on January 21, 2011 the Company sent a letter to the Government of Turkmenistan inviting it to resolve the dispute over the suspension of MTS’ operations in the country and to remove impediments to the Company’s business activities in Turkmenistan.

12.01.2011
MTS Optimizes Interest Rates on the Gazprombank Financing

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the leading telecommunications provider in Russia and the CIS, announces that it has further lowered the interest rates on the Gazprombank credit facilities.

11.01.2011
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 ( “Tribunal”) constituted under the rules of the London Court of International Arbitration (“LCIA”) has rejected application of MTS’ wholly owned subsidiary, MTS Finance S.A. (“MTS Finance”), to correct an award it issued on November 11, 2010 with regards to arbitration commenced by Nomihold Securities Inc. (“Nomihold”) in early 2007. Accordingly, the award stating that MTS Finance is required 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 Tribunal ruled were payable to Nomihold under the option agreement, and to compensate it for related costs, is now a final award. MTS Finance is currently considering its legal options.

Contact investor relations:

+ 7 495 223 20 25 ir@mts.ru

MTS Investor Relations
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