CORRECTION OF INDEX VALUES DUE TO INCORRECT NUMBER OF

Due to incorrect number of shares in Kemira Growhow (KGH1V) on March 23, 2007,
and an incorrect dividend in Aspo Plc (ASU1V) on March 30, 2007, OMX Helsinki
All-share, OMX Helsinki All-share cap and sector indexes HX20 and HX15 have
been recalculated. Enclosed are the corrected closing values from 2007-03-23 to
2007-04-04.

CORRECTION OF INDEX VALUES DUE TO INCORRECT NUMBER OF SHARES IN KEMIRA GROWHOW

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