If you have any questions or require further information on MTS, please contact the Investor Relations Department:

Polina Ugryumova, Director, Investor Relations
Telephone: +7 (495) 223-20-25
E-mail: ir@mts.ru

Address: Investor Relations Department, Mobile TeleSystems,
Vorontsovskaya street, Bldg. 5/2 109147 Moscow, Russia.

For any international media or events questions, please contact:

Telephone: +7 (495) 223-20-25
E-mail: ir@mts.ru

Please send any questions on MTS social policy, charity or social responsibility by email to: csr@mts.ru

Please send correspondence to:
109147, Russian Federation, Moscow, Vorontsovskaya street, Bldg. 5/2, office 304

For information on marketing, advertising, new technologies and value-added services, please contact:

Telephone: +7 (495) 911-65-56
Fax: : +7 (495) 911-65-25

For information on network operation, tariffs and services, payment and billing, please contact our MTS’ Contact Center:

Telephone: 8 800 250-08-90

If you call outside Russia, please contact:

Telephone: +7 495 766-01-66

Deloitte and Touche CIS, CJSC

Telephone: +7 (495) 787-06-00
Fax: +7 (495) 787-06-01
www.deloitte.com

Lesnaya Street, Bldg. 5, Moscow, 12504, Russia

Reestr, JSC

Telephone:   +7 (495) 617-01-01
E-mail:   reestr@aoreestr.ru
Website:   www.aoreestr.ru

20 Bolshoy Balkansky Lane, Bld. 1
129090 Moscow, Russia

J.P.Morgan Depositary Receipts

Tel: +1 (800) 990-11-35
Fax: +1 (212) 552-26-14
www.jpmorgan.com
adr@jpmorgan.com

4 New York Plaza, 12th Floor,
New York, NY, 10004

Tel: +7 (495) 766-00-55

Address: Mobile TeleSystems,
Vorontsovskaya street, Bldg. 4 109147 Moscow, Russia