- Translation - AIS-CP 158/2004 November 22, 2004 Re: Notification of the Book Closing for Interest Payment of Debentures of the Company (AIS073A) To: The President The Stock Exchange of Thailand Refer to: The Letter No. IVS 04/2805 of Thai Military Bank Plc. on November 23, 2004 Advanced Info Service Public company Limited ("the Company") would like to inform you that the Company will close the registered book for interest payment of debentures of the Company (AIS073A), the details are shown in the referenced letter. Please be informed accordingly. Sincerely Yours, (Signed) Mr. Pong-Amorn Nimpoonsawat Chief Finance Officer Advanced Info Service Public company Limited Referenced Letter IVS 04/2805 November 23, 2004 President The Stock Exchange of Thailand 62 Rachadapisek Road, Bangkok 10110 RE: Scheduled closing the registered book for AIS073A Dear Sir, We, THAI MILITARY BANK Pcl. As a Registrar & Paying Agent Debentures of ADVANCED INFO SERVICE PUBLIC COMPANY LIMITED NO.3/2002, DUE 2007 would like to announce that the registered book of AIS073A will be closed from 12.00 on December 7, 2004 for the right to receive the interest.AIS073A will be paid the interest on December 21, 2004 with interest rate 5.25 % from the period of September 21, 2004 to December 20, 2004 for 91 days. Yours faithfully, (Klairoong Tamanakijprasart) Manager Invertor Services Operations