Ref AA 014/2547 19 February 2004 Re Request for Halt Sign To The President The Stock Exchange of Thailand Reference is made to news regarding the operating result of Advance Info Service PLC for the year 2003. To avoid the unusual trading of ADVANC, we would like to request for a halt sign on the stock. The company will submit the financial statement for the year ended 2003 after 17.00 p.m. of 19 February 2004. Please be inform accordingly Yours Sincerely, -Signed- Mr. Anek Pana-apichon Vice President Shin Group