ACC.004/51 26 February 2008 President The Stock Exchange of Thailand Subject : Additional Information about Book Closing Resolution of the Board of Directors of Master Ad Public Company Limited, at meeting 1/2008about Shareholders Registration Book Closing. We would like to give the additional information that the Book Closing is both for the right to attend a Shareholders Meeting and the right to receive the Dividend on April 3, 2008 at 12.00 a.m.Therefore, The Dividend Payment at 0.25 Baht/Share is uncertain as it has not yet been approved by Shareholders. Please be informed accordingly Your Sincerely, Noppadon Tansalarak Director Phiched Maneerattanaporn Director