Dear Shareholders!

We are ready to answer your questions on the phone (from 1.00 p.m. to 5.00 p.m. Moscow time):

Svetlana Chuchaeva	Corporate Governance OGK-1		+7(495) 967-05-27 ex. 2081
Larisa Sadovnikova	Investor Relations OGK-1	+7(495) 967-05-27 ex. 2068

You can also send your requests by mail, fax or e-mail:

Address: World Trade Center - 2, 12, Krasnopresnenskaya naberezhnaya,

Moscow, 123610, Russia.

e-mail:

Chuchaeva_sy@INTERRAO.RU

Sadovnikova_lv@INTERRAO.RU

Fax: +7(495) 967-05-26

We inform you, that the registry of OGK-1 shareholders
is kept by JSC «Moscow Central Depositary»
Address: B. Pochtovaya St., 34, building 8, 105082
www.mcd.ru

You are welcome to address JSC «Moscow State Depositary» and its branches
on the issues of changes and amendments to the personal
shareholder account, re-registration of the securities owner,
shareholders registry extract preparation and dividend payments.