October, 20, 2010 JSC RusHydro announces that on October 14, 2010 Standard and Poor's Rating Services has assigned an issue rating of ‘BB+' to the proposed Loan Participation Notes (LPNs) to be issued by the special purpose vehicle (SPV) RusHydro Finance Ltd. The proceeds of the proposed LPNs will be used to fund a proposed loan facility for JSC RusHydro, Simultaneously Standard and Poor's assigned recovery rating of ‘3', indicating expectation of meaningful recovery in a hypothetical event of default. Standard and Poor's rating methodology is presented at the site www.standardandpoors,com.