Sistema hereby confirms that the planned conference call with management to discuss the acquisition of controlling stakes in Bashkir Oil and Energy Group will now take place on Thursday, April 9, 2009, and not on Wednesday, April 1, 2009, as previously communicated. Apologies for any inconvenience caused.

Thursday, 9 April 2009

10.00 AM (EST) / 3.00 PM (UK) / 4.00 PM (CET) / 6.00 PM (MOSCOW)

Host:

Maxim Arkhipov – Head of Investor Relations Department   

Speakers:

Leonid Melamed - President and Chief Executive Officer

Anton Abugov - First Vice President, Head of Strategy and Development Group

Alexey Buyanov - Senior Vice President, Head of Financial Group       

Dial in details will follow shortly

You may also contact Shared Value on +44 (0)20 7321 5010 for further details.