TietoEnator Corporation Stock Exchange Release 11 April 2007, 4.00 pm EET TietoEnator's President and CEO Pentti Heikkinen has been diagnosed with aortic valve insufficiency in his heart. His treatment plan will be decided within a week after further medical examinations. Pentti Heikkinen will return to his normal duties in the coming few weeks. His aortic valve will be treated with surgery during this year. The recovery from this surgery typically takes 1-3 months. Currently the CEO's duties are assumed by TietoEnator's Deputy CEO Åke Plyhm. TIETOENATOR CORPORATION DISTRIBUTION Helsinki Stock Exchange Stockholmsbörsen Principal Media TietoEnator is among the leading architects in building a more efficient information society and one of the largest IT services providers in Europe. TietoEnator specializes in consulting, developing and hosting its customers' business operations in the digital economy. The Group's services are based on a combination of deep industry-specific expertise and the latest information technology. TietoEnator has about 16 000 experts in close to 30 countries. www.tietoenator.com