Results of the BoD Meeting on May 18, 2012

May 22nd, 2012

Results of the Board of Directors on May 18, 2012

JSC RusHydro (ticker symbol: MICEX-RTS, LSE: HYDR; OTCQX: RSHYY) announces the results of the Board of Directors meeting held in absentia on May 18, 2012.

The Board approved a number of interested party transactions. In compliance with disclosure rules, the information on transactions qualified as interested party transactions and its parties are to be disclosed after such transactions are concluded.

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The Board of Directors also approved an amended Code of corporate conduct of RusHydro. The new version of the Code is developed to comply with new anti-corruption laws and encompasses the best practices.

For more information:

JSC RusHydro, Investor Relations Department

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

[email protected]

DISCLAIMER

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.