Moscow, Russia – February 25, 2011 – Sistema (LSE: SSA), the largest diversified public financial corporation in Russia and the CIS, which invests in, and is a major shareholder of, companies operating in different industries, today announced that CJSC Sistema-Inventure, a wholly-owned subsidiary of Sistema JSFC, acquired more than 1% of the ordinary shares of MGTS at a price of RUB 436.20 per share, for total cash consideration of RUB 370 million (approximately US$ 12.3 million). The purchase was made in accordance with the mandatory tender offer announced by Sistema JSFC on November 13, 2010.