DGAP-AFR: Rational AG: Announcement according to Articles 37v, 37w, 37x et seqq. of the WpHG [the German Securities Act] with the objective of Europe-wide distribution

| Source: EQS Group AG EQS Group AG 

Rational AG / Preliminary announcement on the disclosure of financial statements

21.04.2008 

Announcement according to articles 37v, 37w, 37x ff. WpHG
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Rational AG hereby announces that the following financial reports shall be
disclosed:
Report: Quarterly financial report of the group within the 1st half-year
Date of disclosure / German: May 07, 2008 
Date of disclosure / English: May 07, 2008 
German:
http://www.rational-ag.com/DE_de/investor-relations/finanzberichte/quartal
sberichte/
English:
http://www.rational-ag.com/US_en/investors/financial-reports/quarterly-rep
orts/

DGAP 21.04.2008 
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Language:     English
Issuer:       Rational AG
              Iglinger Straße 62
              86899 Landsberg a. Lech
              Deutschland
Internet:     www.rational-ag.com
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