Moscow, Russia – December 15, 2009 – “COMSTAR – United TeleSystems” JSC (“Comstar” or “the Group”) (LSE: CMST), the largest integrated telecommunications provider in Moscow and 69 Russian cities, today announced changes to the Charter approved by the Extraordinary General Meeting of Shareholders (EGM) which was held on December 14, 2009. The Group also announced that the Board of Directors has called an Extraordinary General Meeting of Shareholders at 11:00 Moscow time on March 3, 2010. The meeting will take place at Comstar offices situated at 12/3 Petrovsky Boulevard, Moscow, 127051, Russia.

The EGM held on December 14, 2009 approved the proposal to terminate the powers of the Revision Committee’s members, and elected new members of the Revision Committee.

The EGM also approved the amendments to the Charter; namely that there shall be no less than seven Members of the Board of Directors of COMSTAR, and that the Revision Committee shall consist of five members. Moreover, the EGM determined that the Board of Directors will comprise of 11 members following the next Meeting of Shareholders. The current Board of Directors comprises of nine members and the Revision Committee of three members.

Separately, the Board of Directors has called an Extraordinary General Meeting of Shareholders on March 3, 2010. The proposed agenda of the next EGM includes the determination of the EGM schedule, the termination of powers of the members of both the Board of Directors and Revision Committee and elections for both the Board of Directors and Revision Committee.

Shareholders registered at the record date of December 15, 2009 will be eligible to participate and vote at the meeting.

Further information with regard to both EGMs and other related issues will be available on the Company’s web site https://www.comstar-uts.ru/