News

Russia, Moscow - Mobile TeleSystems OJSC (“MTS” — NYSE: MBT), the leading telecommunications provider in Russia and the CIS, announces that it has signed a memorandum of understanding with VimpelCom OJSC (trademark "Beeline"), MegaFon OJSC and Rostelecom OJSC to jointly lay and operate an underwater fiber-optic cable joining the Russian Far East with Sakhalin Island. The project, dubbed ‘Sakhalin-Magadan-Kamchatka’, will kick-off in late 2012. According to preliminary estimates, the total cost of the project will amount to RUB 2.4 billion and will be split evenly between four operators on a parity basis. The volume of investments will be specified at the end of 2012 after completion of the feasibility study.

The management of Mobile TeleSystems (MTS) will be holding a conference call to discuss the Company’s First Quarter 2012 Financial and Operating Results on Monday, May 21, 2012.

Moscow, Russian Federation — Mobile TeleSystems OJSC (“MTS” — NYSE: MBT), the leading telecommunications provider in Russia and the CIS, has today filed its annual report on Form 20-F for the fiscal year ended December 31, 2011 with the United States Securities and Exchange Commission.

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” or “the Company” – NYSE: MBT), the leading telecommunications provider in Russia and the CIS, announces the decisions reached at the Company’s Board of Directors (“BoD” or “the Board”) meeting held on April 12, 2012.

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the leading telecommunications provider in Russia and the CIS, and Samsung Electronics announce the signing of an agreement to cooperate on retail projects, equipment sales and telecommunication services in Russia.

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 and full year ended December 31, 2011.

Moscow, Russian Federation — Mobile TeleSystems OJSC (“MTS” — NYSE: MBT), the leading telecommunications provider in Russia and the CIS, announces that on March 05, 2012, the Moscow Arbitrazh Court terminated bankruptcy proceedings against MTS initiated by one of its former dealers, Lotsman Management Group LLC (“Lotsman”), in connection with a commercial dispute in the amount of 17 million rubles relating to dealer commissions allegedly owed to Lotsman by MTS. The proceedings were terminated when a bank used by MTS was served with an enforcement order relating to the aforementioned amount.

The management of Mobile TeleSystems (MTS) will be holding a conference call to discuss the Company’s Fourth Quarter and Full Year 2011 Financial and Operating Results on March 12, 2012.

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the leading telecommunications provider in Russia and the CIS, announces that on February 9, 2012, MTS received a Request for Arbitration from Mobile TeleSystems Finance SA (“MTS Finance”), wholly owned subsidiary of MTS, which has initiated an arbitration process under a loan agreement ("Loan Agreement") between the parties dated January 28, 2005. Under the terms of the Loan Agreement, MTSF lent $400 million to MTS. MTS Finance seeks the payment of all sums due to it under the Loan Agreement. MTS agrees that arbitration is the correct forum for any dispute between the parties but strongly denies that any sum is still owed by it to MTS Finance.

Moscow, Russian Federation – Mobile TeleSystems OJSC (“MTS” – NYSE: MBT), the leading telecommunications provider in Russia and the CIS, announces that it has been awarded the first license in Russia to provide wireless communication services in the LTE standard in Moscow and the Moscow region.