RTX change of price source as of 23. Juni 2008

Date: 23.06.2008

Starting on 23 June 2008, the RTX will be calculated with local prices of the Moscow Interbank Currency Exchange (MICEX) instead of the mid of bid and ask quotes of the Russian Trading System (RTS). The Vienna Stock Exchange will introduce, in addition to the existing RTX USD, the RTX EUR and the RTX RUB. The local prices will be converted into EUR and USD every 2 minutes, using the mid of the last available bid and ask quotes of the respective currency. . It is disseminated in real-time by Wiener Börse AG and is designed as a tradable index to be used as underlying for standardized derivatives (futures & options) and for structured products.

The base level of RTX EUR and RTX RUB was set at 3,158.76 points on January 9, 2008.