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:    UBS AG
Address: Badenerstrasse 574
Place:   8098 Zürich
State:   Schweiz
Company data:
Place:   Heidelberg
State:   Deutschland

05.02.2007

UBS AG, Badenerstrasse 574, Zurich/Switzerland, has notified us on 5
February 2007 pursuant to Art. 21 para. 1 of the German Securities
Exchange Act that on 31 January 2007 its share of voting rights in
HeidelbergCement AG (DE0006047004), Berliner Strasse 6, 69120
Heidelberg, went beyond the threshold of 3% and now totals to 3.41%.

HeidelbergCement AG
Managing Board

end of announcement                               euro adhoc 05.02.2007 19:13:51

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