SITRONICS ANNOUNCES ADMISSION TO TRADING ON THE LONDON STOCK EXCHANGE

LONDON, 13 February 2007 - JSC SITRONICS ("SITRONICS"), a leading provider of telecommunication solutions, including software, equipment and systems integration, IT solutions and microelectronic solutions in Russia and the Commonwealth of Independent States with a strong presence in Central and Eastern Europe and a growing presence in the Middle East and Africa announced that its Global Depositary Receipts (GDRs) have been admitted to the Official List and will begin trading today on the London Stock Exchange under the ticker symbol SITR. SITRONICS' shares are also listed on the Moscow Stock Exchange and RTS under the ticker symbol SITR. Evgeni Utkin, SITRONICS' Chief Executive Officer said: "As the first technology company from Russia to list on the LSE, we are naturally very pleased with the success of our GDR Offering and the status that a London listing brings to the Company. We believe that the proceeds raised from the Offering will allow SITRONICS to further develop its strengths in all its markets." SITRONICS Alexander Boreyko, Investor Relations +7 495 225-98-26 Director +7 916 105-83-35 GAVIN ANDERSON & CO Byron Ousey +44 207 554 1400 Dick Millard Daniel Hunter Michael Turner ABOUT SITRONICS SITRONICS is a leading provider of telecommunication solutions, including software, equipment and systems integration, IT solutions and microelectronic solutions in Russia and the Commonwealth of Independent States with a strong presence in Central and Eastern Europe and a growing presence in the Middle East and Africa. SITRONICS serves over 3,500 clients, maintains offices in 25 countries and exports its products and services to more than 60 countries. SITRONICS has over 10,000 employees of which approximately 4,600 are involved in research and development. SITRONICS key business operations are based in Prague, Czech Republic and Athens, Greece for its Telecommunication Solutions division and in Kiev, Ukraine and Zelenograd, Russia, for its IT Solutions and Microelectronic Solutions divisions, respectively. For the nine months ended 30 September 2006, SITRONICS's revenues and OIBDA[1] were $1,049.8 million and $114.7 million, respectively. As of 30 September 2006, SITRONICS had total assets of approximately $1.6 billion. SITRONICS is majority owned by Sistema, a leading consumer services holding company in Russia and CIS. SITRONICS has developed strategic alliances in its home markets with Cisco Systems, STMicroelectronics, Infineon and Giesecke & Devrient in relation to certain products and services. SITRONICS has vendor relationships with Siemens, Ericsson, Motorola, ORACLE, Intel, Sun Microsystems and Microsoft. Key customers include Sistema group companies, such as MTS, Comstar UTS and MTT, and also OTE, Cosmote, Vodafone, Ericsson, Arcelor Mittal (formerly Mittal Steel), Banca Intesa and TCL of China. * * * Some of the information in this press release may contain projections or other forward-looking statements regarding future events or the future financial performance of SITRONICS. You can identify forward-looking statements by terms such as "expect," "believe," "anticipate," "estimate," "intend," "will," "could," "may" or "might" the negative of such terms or other similar expressions. These statements are only predictions and actual events or results may differ materially. We do not intend to or undertake any obligation to update these statements to reflect events and circumstances occurring after the date hereof or to reflect the occurrence of unanticipated events. Many factors could cause the actual results to differ materially from those contained in our projections or forward-looking statements, including, among others, general economic conditions, our competitive environment, risks associated with operating in Russia, rapid technological and market change in our industries, and other factors specifically related to SITRONICS and its operations. This document does not constitute or form part of any offer or invitation to sell or issue, or any solicitation of any offer to purchase or subscribe for, any shares or other securities of SITRONICS, nor shall any part of it nor the fact of its distribution form part of or be relied on in connection with any contract or investment decision relating thereto, nor does it constitute a recommendation regarding the securities of SITRONICS. This press release is not for distribution, directly or indirectly, in or into the United States (including its territories and dependencies, any State of the United States and the District of Columbia), Australia, Canada, Japan or the Russian Federation. This press release is not an offer for sale of any securities in the United States. Securities may not be offered or sold in the United States absent registration or an exemption from registration under the US Securities Act of 1933, as amended, and the rules and regulations thereunder. SITRONICS has not registered and does not intend to register any portion of any offering of securities in the United States or to conduct a public offering of any securities in the United States. This announcement is an advertisement and not a prospectus and investors should not subscribe for or purchase any shares or other securities referred to in this announcement except on the basis of information in the prospectus which is intended to be published by SITRONICS in due course in connection with the admission of GDRs representing the SITRONICS's shares to the Official List of the UK Financial Services Authority. Such prospectus will, following publication, be available in a printed form at the registered office of SITRONICS. This document does not constitute an offer of securities to the public in the United Kingdom. This communication is directed only at (i) persons who are outside the United Kingdom or (ii) persons who have professional experience in matters relating to investments falling within Article 19(5) of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005 (the "Order") and (iii) high net worth entities, and other persons to whom it may lawfully be communicated, falling within Article 49(2) of the Order (all such persons together being referred to as "relevant persons"). Any investment activity to which this communication relates will only be available to and will only be engaged with, relevant persons. Any person who is not a relevant person should not act or rely on this document or any of its contents. In any EEA Member State that has implemented Directive 2003/71/EC (together with any applicable implementing measures in any Member State, the "Prospectus Directive") this communication is only addressed to qualified investors in that Member State within the meaning of the Prospectus Directive. This press release is not an offer, or an invitation to make offers, sell, purchase, exchange or transfer any GDRs in the Russian Federation or to the benefit of any Russian person, and does not constitute an advertisement of the GDRs in the Russian Federation and must not be passed on to third parties or otherwise be made publicly available in the Russian Federation. The GDRs have not been and will not be registered in the Russian Federation and are not intended for "placement" or "public circulation" in the Russian Federation. [1] OIBDA is Operating Income Before Depreciation and Amortization