Claim against ERC of Bashkortostan

 February 4th, 2013

A claim was brought against Energy Retail Company of Bashkortostan

JSC RusHydro acknowledges that Retail Energy Company of Bashkortostan LLC, a subsidiary of RusHydro, received the claim from Bashkir Electricity Distribution Networks LLC in the amount of RUB 556,184,236.21 and accrued interest of RUB 2,294,259.97 for the outstanding liability under the existing electricity transmission services agreement between the two companies.

For more information:

JSC RusHydro, Investor Relations Department

Tel. +7 (495) 225-3232 ext. 1319, 1394, 1607

ir@rushydro.ru

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The information in this press release may contain projections or other forward-looking statements regarding future events or the future financial performance of RusHydro. One can identify forward-looking statements by terms such as "expect," "believe," "anticipate," "estimate," "intend," "will," "could," "may" or "might," the negative of such terms or other similar expressions. We wish to caution you that these statements are only predictions and that actual events or results may differ materially from these statements.

We do not intend to update these statements to reflect events and circumstances occurring after the date hereof or to reflect the occurrence of unanticipated events. Many factors could cause the actual results to differ materially from those contained in our projections or forward-looking statements, including, among others, general economic conditions, our competitive environment, risks associated with operating in Russia and rapid technological and market changes in our industries, as well as many other risks specifically related to RusHydro and its operations.