10% drop in Net Profit (by RAS)

30 March 2010

Information on events that caused a one-off (increase) drop of over 10% in the issuer's net profit (by Russian Accounting Standards)

1. An event that caused a one-off decrease of over 10% in the issuer's net profit: The drop in net profit was caused by reappraisal of financial investments evaluated by current market value amounting to 21,711,129,000 rubles.

2. The date of even that caused a one-off decrease of over 10% in the Issuer's net profit -  30 March 2010.

3. The value of the Issuer's net profit over the reporting period preceding the reporting period during which the material fact occurred (2008) - 16,450,239,000 rubles (by Russian Accounting Standards)

4. The value of the Issuer's net profit over the reporting period (a quarter, a year) during which the material fact occurred (3 quarter of 2009) - 10,328,995,000 rubles (by Russian Accounting Standards)

5. Variation of the Issuer's net profit in absolute terms and percentage-wise:

In absolute terms: - 6,121,244,000 rubles

Percentage-wise: - 37,21%.

JSC RusHydro Member of the

Management Board E.E. Gorev

(pursuant to the power of attorney No.2576 of 24.11.2009)

JSC RusHydro Chief Accountant O.V. Otto