Vaisala Oyj Stock exchange release 26.1.2010 at 11.15 Petteri Naulapää has been appointed Chief Information Officer and a member of Vaisala's strategic management team starting February 16, 2010. Before joining Vaisala, he has worked as director of Microsoft Dynamics AX business group at Digia Plc. Before Digia he worked for Oracle and Nokia-Maillefer Plc. Jussi Kallunki, the current CIO will assume the role of Vaisala's Chief Risk Officer, in charge of risk management and security. Further information: Helena Marjaranta SVP, Communications Tel. +358 40 581 9102 Distribution: NASDAQ OMX Helsinki Main media [HUG#1377086]