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Ad hoc announcement pursuant to Section 15 of the Securities Trading Act (WpHG)
Successful capital increase

Hannover, 12 June 2003:

Today, 9,716,392 Hannover Re shares were successfully sold by Dresdner Kleinwort Wasserstein. The new shares from a capital increase against cash from authorized capital were offered to institutional investors in Europe and the U.S. in a private placement by means of an accelerated bookbuilding. The shares were allocated at a price of EUR 22.60 per share.

Hannover Re receives issue proceeds amounting to c. EUR 220 million before provisions and expenses.

This placement is part of a combined transaction of a capital increase against cash and a capital increase against contribution in kind. In the context of the capital increase against contribution in kind, Talanx AG will contribute its shares in HDI Reinsurance Ireland Ltd. into Hannover Re effective 1 July 2003 against issuance of 13,716,814 new shares. Thus, Hannover Re will acquire the Irish reinsurance activities of HDI Haftpflichtverband der Deutschen Industrie V.a.G. (HDI), Hannover, held in HDI Reinsurance Ireland, Ltd.

Contact: Roland Vogel (Phone.: +49/ 511/ 56 04-12 00, Fax: +49/ 511/ 56 04-68 92, E-Mail: mailto:roland.vogel@hannover-re.com).

This ad-hoc release is not an offer of securities for sale or a solicitation of an offer to purchase securities in the United States. The shares in Hannover Rückversicherungs-Aktiengesellschaft (the "Shares") may not be offered or sold in the United States or to or for the account or benefit of U.S. persons (as such term is defined in Regulation S under the U.S. Securities Act of 1933, as amended (the "Securities Act")) unless registered under the Securities Act or pursuant to an exemption from such registration. The Shares have not been and will not be registered under the Securities Act.