OREANDA-NEWS. May 06, 2011. Mobile TeleSystems OJSC (“MTS” or “the Company” – NYSE: MBT), the leading telecommunications provider in Russia and the CIS, announces that following a decision by the Directorate of the Moscow Interbank Currency Exchange (“MICEX” or “the exchange”) on April 28, 2011 the Company’s additional share issue in the amount of 73,087,424 ordinary shares today commenced trading on the exchange as part of the “A1” quotation list.

The issuance of additional MTS shares was completed previously for the purposes of conversion of Comstar-UTS shares.

The state registration number of the newly issued MTS shares is 1-01-04715-A-002D. The additional share issue will trade on MICEX under ticker symbol MTSI-002D for a period of 3-months from the date of the registration of the share issuance report, April 21, 2011, as stipulated by Russian law after which it will merge with the Company’s main issue.

The main share issue trades on MICEX under ticker symbol MTSI and has a state registration number 1-01-04715-A.