- Translation - AIS-CP 069/2009 August 6, 2009 Subject: Notification of the book closing date for interest payment (last period), redemption and suspending of AIS099A and the book closing date for interest payment of AIS119A and AIS139A To: The President The Stock Exchange of Thailand Refer: 1. The Letter No. SSO.SS&IB0.09/3972 of Thai Military Bank Plc., dated August 6, 2009 2. The Letter No. SSO.SS&IBO.09/3965 of Thai Military Bank Plc., dated August 6, 2009 3. The Letter No. SSO.SS&IBO.09/3966 of Thai Military Bank Plc., dated August 6, 2009 Advanced Info Service Public Company Limited ("the Company") would like to inform you that the Company will close the registered book for interest payment, redemption and suspended trading of AIS099A, the details are shown in the referenced letter no. 1 and the Company will close the registered book for interest payment of AIS119A and AIS139A, the details are shown in the referenced letter no. 2 and 3. Please be informed accordingly, Yours faithfully, -signed- Mr. Vikrom Sriprataks Director Advanced Info Service Plc. Reference 1 SSO.SS&IBO.09/3972 August 6, 2009 President The Stock Exchange of Thailand RE : Closure of the register book for redemption of debentures of ADVANCED INFO SERVICE PUBLIC COMPANY LIMITED NO.1/2006 SERIES 1 DUE 2009 (AIS099A) and put up SP Dear Sir, We, TMB BANK Public Company Limited. As a registrar & paying agent of debentures of ADVANCED INFO SERVICE PUBLIC COMPANY LIMITED NO.1/2006 SERIES 1 DUE 2009, would like to inform the closing of the registration for interest and principle payment of AIS099A on August 24, 2009 of redemption date on September 7, 2009 with interest rate 5.80 % from the period of March 7, 2009 to September 6, 2009 for 184 days and principle repayment THB.1,000.00 per unit. Additionally, we ask Stock Exchange of Thailand (SET) to suspend trade of the debentures stated above (by put up "SP" sign) between August 20, 2009 to September 4, 2009 and delisted from SET since September 7, 2009 onwards. The further details of the redemption are as follows; - In case that bondholders would like to redeem by themselves, they should contact Registrar at TMB Bank Plc. Silom Soi 7 Branch Computer Building 2nd Floor, Silom Road,Bangrak, Bangkok 10500 and will get principal and interest by cheque from September 3, 2009 onwards - In case that the redemption process was done by registered mail, bondholders should send their debenture certificates by registered mail to Registrar at TMB Bank Plc. Silom Soi 7 Branch Computer Building 2nd Floor, Silom Road, Bangrak, Bangkok 10500 within August 24, 2009. Upon Receipt the registrar will deliver cheque of principal and interest via registered mail within September 1, 2009 at their address which are in the registered book on August 24, 2009 Yours faithfully, (Miss Poonsri Solgosoom) Authorized Signature Registrar and Paying Agent Investment Services Operations Division Tel. 0-2230-6061,0-2230-5731 Reference 2 SSO.SS&IBO.09/3965 August 6, 2009 President The Stock Exchange of Thailand 62 Rachadapisek Road, Bangkok 10110 RE : Scheduled closing the registered book for AIS119A Dear Sir, We, TMB BANK Public Company Limited. As a Registrar & Paying Agent Debentures of ADVANCED INFO SERVICE PUBLIC COMPANY LIMITED NO.1/2006, SERIES 2 DUE 2011 would like to announce that the registered book of AIS119A will be closed on August 24, 2009 for the right to receive the interest for the period # 6. AIS119A will be paid the interest on September 7, 2009 with interest rate 5.90 % from the period of March 7, 2009 to September 6, 2009 for 184 days. Yours faithfully, (Miss Poonsri Solgosoom) Authorized Signature Registrar and Paying Agent Securities Services and Investment Banking Operations Department Tel. 0-2230-6061,0-2230-5731,0-2230-5487 Reference 3 SSO.SS&IBO.09/3966 August 6, 2009 President The Stock Exchange of Thailand 62 Rachadapisek Road, Bangkok 10110 RE : Scheduled closing the registered book for AIS139A Dear Sir, We, TMB BANK Public Company Limited. As a Registrar & Paying Agent Debentures of ADVANCED INFO SERVICE PUBLIC COMPANY LIMITED NO.1/2006, SERIES 3 DUE 2013 would like to announce that the registered book of AIS139A will be closed on August 24, 2009 for the right to receive the interest for the period # 6. AIS139A will be paid the interest on September 7, 2009 with interest rate 6.00 % from the period of March 7, 2009 to September 6, 2009 for 184 days. Yours faithfully, (Miss Poonsri Solgosoom) Authorized Signature Registrar and Paying Agent Securities Services and Investment Banking Operations Department Tel. 0-2230-6061,0-2230-5731,0-2230-5487