DGAP-CMS: HOCHTIEF Aktiengesellschaft: Disclosure pursuant to Art. 4 para. 2 of the Regulation (EC) No. 2273/2003

HOCHTIEF Aktiengesellschaft / Share Buyback

21.10.2008 

Release of a Post-admission Duties announcement
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Disclosure pursuant to Art. 4 para. 2 of the Regulation (EC) No. 2273/2003

HOCHTIEF Aktiengesellschaft/Share Buyback

The Executive Board of HOCHTIEF Aktiengesellschaft decided on October 21,
2008 to acquire in the time period from October 22, 2008 through no later
than March 31, 2009 up to a maximum of 3,468,000 shares of HOCHTIEF
Aktiengesellschaft (ISIN DE0006070006) subject to the following conditions.
The number of shares to be acquired is limited by a total purchase price
not exceeding EUR 138,720,000. In addition, the Executive Board of HOCHTIEF
Aktiengesellschaft approved a share buyback programme of HOCHTIEF Pension
Trust e.V. Within this programme, up to 3,500,000 Shares in HOCHTIEF
Aktiengesellschaft (ISIN DE0006070006) with a value of up to EUR
140,000,000 are to be bought back by HOCHTIEF Pension Trust e.V.

The Executive Board hereby makes use of the authorization of the Annual
General Meeting of HOCHTIEF Aktiengesellschaft of May 8, 2008, to launch a
share buyback programme for shares in the amount of up to 10% of the
company's share capital until November 7, 2009. The shares that are bought
back may be used for any purpose set forth in the authorization resolution
of the Annual General Meeting of May 8, 2008.

The share buy-back will be carried out for account of the Company and
HOCHTIEF Pension Trust e.V. respectively by a bank mandated by the Company
or HOCHTIEF Pension Trust e.V. respectively. The bank shall make its
decisions regarding the date of the acquisition of the shares and the
respective volume of the shares to be bought back independently of and
without influence by the Company and HOCHTIEF Pension Trust e.V. The shares
shall be repurchased on stock exchanges at the most favourable terms for
HOCHTIEF Aktiengesellschaft and HOCHTIEF Pension Trust e.V.

In the performance of such activities, the bank is obliged to observe the
trading conditions set forth in Art. 4 to 6 of the Commission Regulation
(EC) No. 2273/2003 of 22 December 2003 (EC REG). According to the
provisions of Art. 5 (1) EC REG, the bank may not determine a purchase
price which exceeds the price of the last independent trade at the
respective stock exchange or the highest current independent bid. The
higher of both values shall be decisive. The bank must not acquire more
than 25 % of the average daily volume of shares in one day on the stock
exchange on which the purchase is carried out. The average volume of shares
is based on the average daily volume of shares traded in the twenty trading
days preceding the date of purchase.

The share buy-back may be suspended and resumed at any time to the extent
permissible under the relevant legal provisions.

The transactions will be disclosed in compliance with the requirements of
Art. 4 (4) EC REG no later than at the end of the seventh trading day
following the date of execution of such transactions. Furthermore, HOCHTIEF
Aktiengesellschaft and HOCHTIEF Pension Trust e.V. will regularly report on
the progress of the share buy-back at www.hochtief.de.

Essen, October 21, 2008

HOCHTIEF Aktiengesellschaft
The Executive Board

DGAP 21.10.2008 
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Language:     English
Issuer:       HOCHTIEF Aktiengesellschaft
              Opernplatz 2
              45128 Essen
              Deutschland
Internet:     www.hochtief.de
End of News                                     DGAP News-Service
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