March 2002

25.03.2002
Mobile TeleSystems signs up its 3 millionth subscriber

Moscow, Russian Federation — 25 March 2002 — OJSC “Mobile TeleSystems” (NYSE: MBT), Russia’s leading GSM 900/1800 mobile operator has today signed up its three-millionth active subscriber.

22.03.2002
20.03.2002
19.03.2002
Mobile TeleSystems issues additional $50 million eurobond

Moscow, Russian Federation — 19 March 2002 — Mobile TeleSystems OJSC (“MTS”) has issued an additional Eurobond for US$50 million through its wholly owned subsidiary Mobile TeleSystems Finance S.A.

11.03.2002

Contact investor relations:

+ 7 495 223 20 25 ir@mts.ru

MTS Investor Relations
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