SUPPLEMENT TO CIDRON SERVICES OY'S TENDER OFFER DOCUMENT DATED MARCH 28, 2008

 | Source: Nasdaq Helsinki Oy Nasdaq Helsinki Oy 

April 21, 2008                                                                  
Not for release, publication or distribution in Australia, Canada, Japan, New   
Zealand, South Africa or the United States.                                     
SUPPLEMENT TO CIDRON SERVICES OY'S TENDER OFFER DOCUMENT DATED MARCH 28, 2008   
REGARDING THE TENDER OFFER FOR THE SHARES AND STOCK OPTIONS IN TIETOENATOR      
CORPORATION                                                                     
- Statement of the Board of Directors of Tietoenator Corporation                
The tender offer document is supplemented with the statement of the Board of    
Directors of Tietoenator Corporation (“TietoEnator”), which TietoEnator         
published on April 21, 2008.                                                    

As of April 21, 2008, Cidron Services Oy's tender offer document will be        
available together with this supplement and other documents supplementing the   
tender offer document.                                                          
Cidron Services Oy
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