Open Joint-Stock Company INTER RAO UES announced that on December 29, 2012 has executed two related amendments to the Electric Power Supply Contracts with State Production Association (SPA) BELENERGO ("Buyer"). The subject of the Contracts is delivery of electric power. According to the said Amendments, the terms of the said Contracts will be extended until December 31, 2013.

The total amount of the transaction is RUB 38,713,025,477.65 (approx. GBP 790,707,219.72) which is 11.52% of the book value of INTER RAO UES' assets. Execution of the said Amendments was approved by the Board of Directors on October 26, 2012.