IRS.008/2009 October 9, 2009 To: The President The Stock Exchange of Thailand Subject: Change Company's Authorized Directors Master Ad Public Company Limited would like to inform The Board of Directors Meeting No.4/2009 held on October 9, 2009 has resolution to change the Authorized Directors as follow: Existing Authorized Signature: Mr.Noppadon Tansalarak and Mr.Prasong Aimmanoj jointly signs with the company's seal affixed. New Authorized Signature: Mr.Noppadon Tansalarak and Miss.Tamonwan Narintavanich jointly signs with the company's seal affixed. Please be informed accordingly Yours sincerely, Noppadon Tansalarak Director Phiched Maneerattanaporn Director