On March 15, 2007, at 7:30 a.m. CET (6:30 a.m. GMT) the Annual Report 2006 of Bayer AG will be published on the Internet: http://www.bayer.com Starting at approx. 10:00 a.m. CET (9:00 a.m. GMT) the Full Year and Fourth Quarter 2006 results will be presented at the Spring Financial News Conference of Bayer AG. The speeches given by Werner Wenning, CEO of Bayer AG and Klaus Kühn, CFO of Bayer AG, and the subsequent discussion will be broadcasted live on the Internet: http://www.live.bayer.com A recording of the conference will be available as from approx. 3:00 p.m. CET (2:00 p.m. GMT). Starting at around 4:00 p.m. CET (3:00 p.m. GMT) you can also follow the Investor Conference Call webcast on the Internet: http://www.investor.bayer.com Bayer AG Corporate Communications 51368 Leverkusen Germany http://www.bayer.com If you have any questions please contact: Corporate Communications - Media Relations Günter Forneck (phone +49 214 30 50446, email: [email protected]) Christian Hartel (phone +49 214 30 47686, email: [email protected]) Fax: +49 214 30 55156 --- End of Message --- Bayer AG: Gebäude W 11 Leverkusen WKN: 575200; ISIN: DE0005752000; Index: CDAX, DAX, HDAX, Prime All Share; Listed: Amtlicher Markt in Frankfurter Wertpapierbörse, Prime Standard in Frankfurter Wertpapierbörse, Amtlicher Markt in Börse Berlin Bremen, Amtlicher Markt in Börse Düsseldorf, Amtlicher Markt in Hanseatische Wertpapierbörse zu Hamburg, Amtlicher Markt in Niedersächsische Börse zu Hannover, Amtlicher Markt in Bayerische Börse München, Amtlicher Markt in Börse Stuttgart;