If you are a holder of American Depository Receipts (ADRs), you may give your voting instruction through Bank of New York, the U.S. depositary. You will receive information, including a voting instruction card. ADR holders can vote their shares provided such holders have returned their completed proxy form prior to 5 pm New York time on April 16, 2008. ADR holders who wish to attend the Annual General Meeting in the Netherlands should contact the Bank of New York Service Center at toll free phone 1-888-269-2377 or 1-212-815-3700 (from outside the United States). A holder of ADRs will be entitled to attend the meeting and to exercise voting rights with respect to the number of shares held on March 17, 2008.