Wolters Kluwer Share Buy-back Program, Update July 2-6

Amsterdam (July 9, 2007) – Wolters Kluwer, a leading global information services and publishing company, today announces that in line with the launch of its €475 million share buy-back program on June 15, 2007, the company has repurchased 589,470 ordinary shares in the period July 2 until July 6, 2007.

Shares were repurchased at an average price of €22.67 for a total amount of €13.4 million. For detailed information on the daily repurchased shares, see the Wolters Kluwer website at
www.wolterskluwer.com/WK/Investors/Share+Information/Share+Buy-back+Program/

The total number of shares repurchased under this program to date is 3,306,487 ordinary shares for a total consideration of €74.8 million.