ACC.003/48 8 April 2005 President The Stock Exchange of Thailand 62 Rachadapisek Klongtoey Bangkok 10110 Subject: To inform changing place for the ordinary Shareholder's Meeting on April 22,2005 Reference: The news announced on February 28, 2005 Ref No.ACC.001/48 The Resolution of the board of director's meeting No.1/2005 We, Master Ad Public Company Limited, would like to inform the changing of the meeting room at the Swissotel Le Concorde Bangkok Ratchapisek Rd. Huaykwang, Bangkok (Rebranding from The Merchant Court Hotel at Le Concord, Bangkok) for the 1/2005 ordinary Shareholder's Meeting on April 22,2005 at 14.00 hr. from the Salon-B on the 2 nd Floor to the Salon -A on the 2 nd Floor. Please be kindly informed accordingly Yours sincerely, Noppadon Tansalarak President & CEO Phiched Maneerattanaporn Director