Wienerberger AG

Transaction in Own Shares • Nov 17, 2010

Wienerberger AG

with its registered seat in Vienna

Announcement concerning the planned transfer of acquired treasury shares pursuant to § 4 and § 5 Austrian Publication Regulation 2002 (BGBl II 2002/112)

The Annual General Meeting held on May 20, 2010 passed a resolution authorizing the Managing Board of Wienerberger AG to sell or dispose of treasury shares in another manner than over the stock exchange or by means of a public offering. In accordance with this resolution of the Annual General Meeting, the Managing Board passed a resolution on October 21, 2010, subject to the formal approval by the Supervisory Board, calling for the sale of part of the Company's shares currently held as treasury shares, namely 1,000,000 (one million) shares, and to use them as partial return compensation for the acquisition of the remaining 25% stake in Semmelrock International GmbH (hereafter "Semmelrock"). The reference to the relevant Report of the Managing Board, which is available for inspection free of charge at the registered office of the Company or can be viewed on the Website of the Company at www.wienerberger.com, was published in the Official Gazette of the Wiener Zeitung on October 29, 2010. Based on a resolution passed on November 15, 2010, the Supervisory Board of the Company formally approved the acquisition of the 25% stake in Semmelrock and the related sale of treasury shares. By way of the current announcement, the resolution of the Managing Board is publicized and the planned transfer of the treasury shares is hereby made known:

• 1. Day of the (authorization) resolution of the Annual General Meeting pursuant to § 65 (1) 4, 6 or § 8 Austrian Stock Corporation Act: May 20, 2010.
• 1. Day and manner of the publication of this authorization resolution passed by the Annual General Meeting: announcement in the Official Gazette of the Wiener Zeitung on May 22, 2010.
• 1. Beginning and expected duration of the share buyback program and/or the sale of the treasury shares: all treasury shares which were sold must be transferred within 10 days starting with the day of the Supervisory Board resolution of November 15, 2010.
• 1. Type of shares (class of stock) to which the share buyback program and/or the sale of treasury shares refers: non-par value bearer shares of the Company (uniform type of shares).
• 1. Planned volume (number of shares) of the share buyback program and/or the sale of treasury shares, in particular the ratio of the treasury shares to be repurchased and/or sold in relation to the issued capital of the Company, if necessary disclosed separately depending on the particular class of stock: on balance, a total of 1,000,000 (one million) non-par value bearer shares will be transferred, corresponding to approximately 0.85% of the issued capital of the Company.
• 1. Highest and lowest value to be realized per share: has not been conclusively

determined; in determining the purchase price component for the acquisition of a 25% stake in Semmelrock, the Managing Board of the Company based its calculations on a share price for the Wienerberger share of EUR 15.50, although the market price was approximately EUR 10.50 at the time of the contract negotiations. For this reason, plans call for a compensation payment to the sellers of the 25% stake in Semmelrock at an amount equaling the difference between EUR 15.50 and the average price of the Wienerberger share during the period July 1, 2012 to December 31, 2012. However, this compensation payment shall not exceed EUR 5,-- per share for the Wienerberger shares still held in custody by the sellers of the 25% stake in Semmelrock as at December 31, 2012.

• 1. Type and purpose of the share buyback program and/or the sale of treasury shares, in particular, whether the share buyback program and/or the sale will take place over the stock exchange or in another manner than over the stock exchange, whether the shares will be withdrawn (capital improvement measures) and sold if applicable, or whether the shares will be used for the purpose of a share option program for employees, top executives and members of the Managing Board and Supervisory Board of the Company or an associated company: the sale of treasury shares will take place outside of the stock exchange; they are considered to be part of the return compensation for the acquisition of the 25% stake in Semmelrock.
• 1. Potential effects of the share buyback program on the stock exchange listing of the issuer: not applicable in the current case.
• 1. Number and distribution of the share options to be granted or already granted to employees, top executives and individual members of the corporate bodies of the Company or one of its associated companies, listing the precise number of shares encompassed under the share option program, in case the issuer grants or has already granted share options within the period of time stipulated in § 65 (1) 8: not applicable in the current case.

The Company will publish details of the transactions carried out on this basis on the Company's Website at www.wienerberger.com (§ 5 (4) Austrian Publication Regulation 2002).

Vienna, November 17, 2010

The Managing Board of Wienerberger AG