Mail.Ru Group is an Internet company based in the Russian Federation. Co. operates the email service [email protected] and two IM networks in Russia - Mail.Ru Agent and ICQ. Co. operates two Russian-language online social networking sites: Moi [email protected] and Odnoklassniki.ru, and owns a strategic minority equity stake in the social network Vkontakte. Co. is also engaged in developing projects in E-commerce and operating more than 40 thematic vertical sites, targeting various user categories. Co. is also Russia's predominant online games company. Co. maintains a portfolio of online games which includes 34 MMO games and over 30 games for social networking sites.

Mobile Telesystems is a provider of mobile cellular communications services in the Russian Federation, Ukraine, Uzbekistan and Turkmenistan to consumers and corporate customers, employing technology based primarily on Global System for Mobile Communications (GSM). Co. had a mobile subscriber base of around 102.5 million (77.3 million in Russia, 20.4 million in Ukraine, 2.1 million in Turkmenistan, 1.6 million in Uzbekistan and 1.1 million in Armenia). In addition to standard voice services, Co. provides improved services, including voice mail, short message service, general packet radio service, and various SMS- and GPRS-based information and entertainment services.

Tatneft PJSC and its subsidiaries are engaged in crude oil exploration, development and production principally in the Republic of Tatarstan, Russia. Co. is a holding structure, which incorporates oil and gas production boards, crude oil and gas refining companies, as well as enterprises and servicing works selling the crude oil and also the products of crude oil and gas refining and petrochemical products. In addition to this, Co. is also participating in the banking and insurance activities. Co.'s operations are divided into the following main segments: Exploration and Production; Refining and Marketing; and Petrochemicals.

E.ON Russia is engaged in the wholesale electricity market, it produces and sells electric and heat power. As of Dec. 31, 2012, the structure of Co. includes five heat power plants with the total installed capacity of 10,345 MW/2,125.9 Gcal/h: Surgutskaya GRES-2 (Khanty-Mansi Autonomous Area, Tyumen Region), Berezovskaya GRES (Krasnoyarsk Territory), Shaturskaya GRES (Moscow Region), Smolenskaya GRES (Smolensk Region) and Yaivinskaya GRES (Perm Territory).