Ad hoc Announcement - Hajo Riesenbeck resigns from Supervisory Board chairmanship



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FOR IMMEDIATE RELEASE

12 September 2008

GfK Aktiengesellschaft ("GfK”)

Hajo Riesenbeck resigns from Supervisory Board chairmanship and presidency of GfK Nürnberg e.V., to leave both boards as of 26 September 2008

The Management Board of GfK AG (ISIN DE0005875306, Prime Standard) announces Mr. Hajo Riesenbeck’s decision to resign from his positions as Chairman of the Supervisory Board and President of GfK Nürnberg e.V. as of 26 September 2008, the date of the next Supervisory Board meeting, because of differing views on the growth course of the GfK Group, and to leave both boards as of the same date.

Management Board and Supervisory Board thank Mr. Hajo Riesenbeck for his dedicated commitment to the GfK Group.

The Supervisory Board of GfK AG will elect Mr. Riesenbeck’s successor at its next meeting on 26 September 2008.

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