- Translation - AIS-CP 147/2004 October 29, 2004 Re: Notification of the Book Closing of Debentures of the Company (AIS06NA and AIS04NA) To: The President The Stock Exchange of Thailand Refer to: 1. The Letter No. IVS 04/2687 of The Thai Military Bank Public Company Limited on October 29, 2004 2. The Letter No. IVS 04/2689 of The Thai Military Bank Public Company Limited on October 29, 2004 Advanced Info Service Public company Limited ("the Company") would like to inform you that the Company will close the registered book of debentures of the Company as follows: 1.For the right to receive the interest of AIS06NA. 2.For the right of redemption of AIS04NA. Please be informed accordingly and the details are shown in the referenced letter. Sincerely Yours, (Signed) Mr. Pong-Amorn Nimpoonsawat Chief Finance Officer Advanced Info Service Public company Limited Referenced Letter IVS04/2687 October 29, 2004 President The Stock Exchange of Thailand 62 Rachadapisek Road, Bangkok 10110 RE : Scheduled closing the registered book for AIS06NA Dear Sir, We, THAI MILITARY BANK Pcl. As a Registrar & Paying Agent Debentures of ADVANCED INFO SERVICE PUBLIC COMPANY LIMITED NO.3/2001, DUE 2006 would like to announce that the registered book of AIS06NA will be closed from 12.00 on November 15, 2004 for the right to receive the interest.AIS06NA will be paid the interest on November 29, 2004 with interest rate 5.85 % from the period of August 28, 2004 to November 27, 2004 for 92 days. Yours faithfully, (Klairoong Tamanakijprasart) Manager Investor Services Operations IVS 04/2689 October 29, 2004 President The Stock Exchange of Thailand 62 Rachadapisek Road, Bangkok 10110 RE : Scheduled closing the registered book for AIS04NA Dear Sir, We, THAI MILITARY BANK Pcl. As a Registrar & Paying Agent Debentures of ADVANCED INFO SERVICE PUBLIC COMPANY LIMITED NO.2/2001, DUE 2004, would like to announce that the registered book of AIS04NA will be closed from 12.00 on November 15, 2004 for the right of redemption the maturity date will be on November 28, 2004. AIS04NA will be paid principle and interest at rate 4.70 % on November 29, 2004 from the period of May 28, 2004 to November 28,2004 for 185 days and will be paid principle at 1,000 Baht per unit. Yours faithfully, (Klairoong Tamanakijprasart) Manager Investor Services Operations