Company Profile

Mobile TeleSystems OJSC («MTS») is the largest mobile phone operator in Russia and the CIS. Together with its subsidiaries, the Company services over 83.88 million subscribers. The regions of Russia, as well as Armenia, Belarus, Turkmenistan, Ukraine, and Uzbekistan, in which MTS and its associates and subsidiaries are licensed to provide GSM services, have a total population of more than 230 million.

MTS completed its IPO and listed its Level III ADRs on the New York Stock Exchange in July 2000, under the symbol MBT. The Company’s shares have been listed locally on MICEX since November 2003, under the symbol MTSI. The Company’s GDRs are also traded in Europe. The free float of the Company’s shares is approximately 46.7%. MTS is 52.8% majority-owned by Sistema, the largest private sector consumer services company in Russia and the CIS.