OREANDA-NEWS. September 13, 2011. OJSC Mostotrest (“Mostotrest”), (MICEX/RTS ticker: MSTT) will announce its financial and operational results for the six months ended 30 June 2011 on Monday, 26 September 2011.

Conference call

Release of financial and operational results will be accompanied by an analyst and investor conference call hosted by Vladimir Vlasov, Chief Executive Officer and Oleg Tanana, Chief Financial Officer.

Date: Monday, 26 September 2011

Time: 09.00 UK time / 12.00 Moscow time

To participate in the conference call, please dial one of the following numbers and ask to be put through to the “Mostotrest” call:

Russia Toll-Free: 810-8002-198-4011

UK Local: +44-20-7190-1595

UK Toll-Free: 0800-358-5263

As there will be simultaneous translation for the first part of the call (slide presentation), you should state whether you prefer to listen in English or Russian. During the Q&A session, all participants will hear both languages.

Webcast facility

There will also be a webcast of the call, available through the Mostotrest website (www.mostotrest.ru). Please note that this will be a listen-only facility.

Information materials

The results announcement and condensed interim consolidated financial statements for the six months ended 30 June 2011 will be distributed shortly after 09.00 Moscow time on Monday, 26 September 2011 and will also be made available on the Mostotrest website (www.mostotrest.ru). Respective slide presentation will be distributed and made available at the Mostotrest website prior to the conference call.