- Translation - AIS-CP 025/2010 March 15, 2010 Subject: Notification of the book closing for interest payment of debentures of the Company (AIS134A) To: The President The Stock Exchange of Thailand Refer to: The letter no. SSO.SSFO.10/1221 of TMB Bank Plc. on March 12, 2010 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 (AIS134A), 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 Plc. Referenced Letter SSO.SSFO.10/1221 March 12, 2010 President The Stock Exchange of Thailand 62 Rachadapisek Road, Bangkok 10110 RE : Scheduled closing the registered book for AIS134A Dear Sir, We, TMB BANK Public Company Limited. As a Registrar & Paying Agent Debentures of ADVANCED INFO SERVICE PUBLIC COMPANY LIMITED NO.1/2008, DUE 2013 would like to announce that the registered book of AIS134A will be closed on April 16, 2010 for the right to receive the interest for the period # 8. AIS134A will be paid the interest on April 30, 2010 with interest rate 4.00 % from the period of January 30, 2010 to April 29, 2010 for 90 days. Yours faithfully, TMB Bank Public Company Limited (Mr.Apichart Watanaphusitsagul ) (Mr.Anan Vattanarongkupt) As the Registrar and Paying Agent Securities Services and Fund Operations Tel. 0-2230-6061,0-2230-5731