OREANDA-NEWS. Mobile TeleSystems OJSC (“MTS” - NYSE: MBT), the largest mobile phone operator in Russia and the CIS, announces the appointment of Mr. Pavel Pavlovsky, vice president of MTS, as the new director general of UMC.

UMC’s Supervisory Board has accepted Mr. Adam Wojacki’s resignation as Director General of UMC and Head of Business unit “MTS Ukraine” effective March 30, 2007.

Mr. Pavel Pavlovsky, currently Head of Business unit “MTS Foreign Subsidiaries,” will succeed Mr. Wojacki as the new head of UMC and Business unit “MTS Ukraine.”