Moscow, Russia - June 17, 2013 - Sistema JSFC ("Sistema", the "Group" or the "Company") (LSE: SSA), the largest publicly-traded diversified holding company in Russia and the CIS, today announces that it will now report its first quarter 2013 financial results on Friday, June 21, 2013.

Sistema's management will host an investor and analyst conference call at 9 am (London time) / 10 am (CET) / 12 pm (Moscow Time) on June 21, 2013, to present and discuss the first quarter results.

The dial-in numbers for the call remain as:

UK/ International:+44 208 515 2319
US: +1 480 629 9645

To join the call, please quote the conference call title: "Sistema First Quarter 2013 Financial Results".

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For further information, please visit www.sistema.com or contact: