Notification of voting rights transmitted by euro adhoc. The issuer is
  responsible for the content of this announcement.

Person/company obliged to make the notification:
Name:    Allianz SE
Place:   Munich
State:   Germany

Company data:
Name:    HeidelbergCement AG
Address: Berliner Straße 6, 69120 Heidelberg
Place:   Heidelberg
State:   Deutschland

16.05.2007

On 15 May 2007, Allianz SE, Munich, notified us the following:

"Persuant to § 25 sub-section 1 German Securities Trading Act, we 
inform you that on 9 May 2007, we held indirectly financial 
instruments that grant the right to acquire 75038 shares in 
HeidelbergCement AG, Berliner Str. 6, 69120 Heidelberg, Germany*, 
which represent 0.06% of the voting rights. On that day we would have
dropped below the threshold of 5% of the voting rights in 
HeidelbergCement AG.

At the same time we inform you pursuant to § 25 sub-section 1 German 
Securities Trading Act, in connection with § 24 German Securities 
Trading Act that:

On 9 May 2007, Allianz Finanzbeteiligungs GmbH, Königinstr. 28, 80802
Munich, Germany*, held indirectly financial instruments that grant 
the right to acquire 75038 shares in HeidelbergCement AG, Berliner 
Str. 6, 69120 Heidelberg, Germany*, which represent 0.06% of the 
voting rights. On that day Allianz Finanzbeteiligungs GmbH would have
dropped below the threshold of 5% of the voting rights in 
HeidelbergCement AG.

On 9 May 2007, Dresdner Bank AG, Jürgen-Ponto-Platz 1, 60301 
Frankfurt am Main, Germany*, held directly and indirectly financial 
instruments that grant the right to acquire 75038 shares in 
HeidelbergCement AG, Berliner Str. 6, 69120 Heidelberg, Germany*, 
which represent 0.06% of the voting rights. On that day Dresdner Bank
AG would have dropped below the threshold of 5% of the voting rights 
in HeidelbergCement AG.

* amended by emitter according to § 19 German Securities Trading 
Announcement and Insider Register Decree

Heidelberg, 16 May 2007

The Managing Board

end of announcement                               euro adhoc 16.05.2007 10:20:27

Further inquiry note:

Branche: Construction & Property
ISIN: DE0006047004
WKN: 604700
Index: HDAX, MDAX, Classic All Share, Midcap Market Index, Prime All
Share, CDAX
Börsen: Frankfurter Wertpapierbörse / official dealing/prime standard
Börse Berlin-Bremen / free trade
Hamburger Wertpapierbörse / free trade
Niedersächsische Börse zu Hannover / free trade
Baden-Württembergische Wertpapierbörse / official dealing
Börse Düsseldorf / official dealing
Bayerische Börse / official dealing