On Risk Parameters Change for Common Shares of OJSC InterRAO (IRAO)

Dear Participants,

This is to inform you that due to the anticipated consolidation of common InterRAO shares (ticker IRAO) CJSC NCC is going to take the following measures starting from December, 15 2014:

• to set the ban on short sales;
• to set Lower REPO Penalty Rate (LPenRate) equal to − 200%.

For further information, please contact the Public Relations Department at (495) 363-3232.