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STOCK EXCHANGE RELEASE 14 Dec 1999

ANNOUNCEMENT IN ACCORDANCE WITH PARAGRAPH 10, SECTION 2 OF THE SECURITIES MARKET ACT


We have been informed that Geveles Oy, Loviisa, Finland, has on December 13, 1999 reached an agreement on the alienation of its 1.000.000 Jaakko Pöyry Group Oyj shares to its parent company Corbis S.A., Brussels, Belgium. Corbis S.A. previously holds 2.181.500 shares in Jaakko Pöyry Group Oyj. After this, Geveles Oy holds no shares in Jaakko Pöyry Group Oyj.

Corbis S.A.'s changed ownership amounts to 3.181.500 shares, which represents 22.3 per cent of the shares and the votes in Jaakko Pöyry Group Oyj. If the number of the company's own shares acquired by Jaakko Pöyry Group Oyj is deducted from the total number of shares, Corbis S.A.'s holding is 23.27 per cent.

JAAKKO PÖYRY GROUP OYJ

Erkki Pehu-Lehtonen

Teuvo Salminen

Additional information by:

Mr. Kari Heliö, General Counsel Jaakko Pöyry Group Oyj

tel: + 358 9 8947 2443, + 358 400 442 036

www.poyry.com

DISTRIBUTION:

Helsinki Stock Exchange

Stockholm Stock Exchange

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