Correction: SHARE SERIES IN THE HEXTECH INDEX FEBRUARY 1,

There will be one new share series in the HEXTech index. The new series will be
Vaisala Corporation (VAIAS). The share series to be removed from the current
HEXTech index is Perlos Corporation (POS1V). As of February 1, 2008 the share
series listed in the enclosure will be included in the calculation of the
HEXTech index.

Correction: SHARE SERIES IN THE HEXTECH INDEX FEBRUARY 1, 2008

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