Moscow, Russia- June 8, 2012 - Sistema JSFC ("Sistema") (LSE: SSA), the largest diversified publicly-traded investment company in Russia and the CIS, today announces that OJSC RTI ("RTI"), a subsidiary of Sistema, has reported the final results of its Voluntary Tender Offer ("VTO") for JSC SITRONICS shares ("SITRONICS").

Pursuant to the terms of the VTO, originally announced on March 12, 2012, RTI has completed and fully paid for the acquisition of 3,476,219,122 of SITRONICS' ordinary shares, including shares underlying the SITRONICS' Depositary Receipts, comprising approximately 36.41% of SITRONICS' share capital.

This brings RTI's total ownership stake in SITRONICS to 99.48% of SITRONICS' share capital.

RTI intends to initiate a statutory squeeze-out procedure under Russian law to acquire the remaining 0.52% of SITRONICS' ordinary shares.

RTI also intends to discuss with SITRONICS the start of delisting procedures with respect to the SITRONICS' shares and Depositary Receipts from the Russian stock exchanges and the London Stock Exchange, respectively. Further information on the squeeze-out procedures and the delisting will be announced in due course.

The Company is not an investment company, and is not and will not be registered as such, under the U.S. Investment Company Act of 1940.