OREANDA-NEWS. On 28 April 2008 was announced, that OJSC "RTS" reminds that in accordance with the earlier taken decision ordinary and privileged shares of RAO UESR will be removed from the list of securities employed in the calculation of RTS Index and Sectoral RTS Index – Electric Utilities after the trading session of April 30th, 2008 is over. In this connection new Z coefficients will be calculated in compliance with Index calculation methodology.

From May 4th, 2008 to June 13th, 2008 RTS-Index and Sectoral RTS Index – Electric Utilities will be calculated on the basis of 48 and 16 stocks respectively.