Bayer AG will be publishing its Second Quarter 2006 results on August 29, 2006 at 7:30 a.m. CEST (5:30 a.m. GMT).

Starting at around 2:00 p.m. CEST (12:00 noon GMT) live on the Internet, Bayer AG will be broadcasting the speech and discussion of the Investor Conference Call. With Werner Wenning, CEO of Bayer AG, and Klaus Kühn, CFO of Bayer AG.

A recording of the conference call will be available as from August 30 at approx. 9:00 a.m. CEST (7:00 a.m. GMT).

The audio transmission and recording can be accessed on these sites: English: http://www.investor.bayer.com German: http://www.investor.bayer.de

Bayer AG Investor Relations 51368 Leverkusen Germany www.investor.bayer.com

If you have any questions, please contact:

Dr. Alexander Rosar (+49-214-30-81013) Dr. Juergen Beunink (+49-214-30-65742) Peter Dahlhoff (+49-214-30-33022) Ilia Kürten (+49-214-30-35426) Ute Menke (+49-214-30-33021) Judith Nestmann (+49-214-30-66836)

--- End of Message --- 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;