- Translation - AIS-CP 016/2009 February 23, 2009 Subject: Notification of the book closing for interest, principle payment and redemption of the Company's debentures AIS093A and AIS093B To: The President The Stock Exchange of Thailand Refer: 1. The Letter No. SSO.SS&IB0.09/0650 of Thai Military Bank Plc., dated February 23, 2009 2. The Letter No. SSO.SS&IBO.09/0654 of Thai Military Bank Plc., dated February 23, 2009 Advanced Info Service Public Company Limited ("the Company") would like to inform you that the Company will close the registered book for interest, principle payment and redemption of the Company's debentures AIS093A and AIS093B, the details are shown in the reference letters. Please be informed accordingly, Yours faithfully, -signed- Mr. Pong-amorn Nimpoonsawat Chief Finance Officer Advanced Info Service Plc. Compliance Department Tel. 0-2687-4278, 02-615-3277 Reference 1 SSO.SS&IBO.09/0650 February 23, 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.1/2002, DUE 2009 (AIS093A) and put up SP Dear Sir, We, TMB BANK Public Company Limited, as a registrar & paying agent of debentures ofADVANCED INFO SERVICE PUBLIC COMPANY LIMITED NO.1/2002, DUE 2009, would like to inform the closing of the registration for interest and principle payment of AIS093A on March 9, 2009 of redemption date on March 23, 2009 with interest rate 6.25 % from the period of September 21, 2008 to March 22, 2009 for 183 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 March 5, 2009 to March 23, 2009 and delisted from SET since March 23, 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 March 19, 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 March 9, 2009. Upon Receipt the registrar will deliver cheque of principal and interest via registered mail within March 17, 2009 at their address which are in the registered book on March 9, 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.09/0654 February 23, 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.2/2002, DUE 2009 (AIS093B) and put up SP Dear Sir, We, TMB BANK Public Company Limited, as a registrar & paying agent of debentures ofADVANCED INFO SERVICE PUBLIC COMPANY LIMITED NO.2/2002, DUE 2009, would like to inform the closing of the registration for interest and principle payment of AIS093B on March 9, 2009 of redemption date on March 23, 2009 with interest rate 4.85 % from the period of September 21, 2008 to March 22, 2009 for 183 days and principle repayment THB.166.6665 per unit. Additionally, we ask Stock Exchange of Thailand (SET) to suspend trade of the debentures stated above (by put up "SP" sign) between March 5, 2009 to March 23, 2009 and delisted from SET since March 23, 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 March19, 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 March 9, 2009. Upon Receipt the registrar will deliver cheque of principal and interest via registered mail within March 17, 2009 at their address which are in the registered book on March 9, 2009 Yours faithfully, (Miss.Poonsri Solgosoom) Authorized Signature Registrar and Paying Agent Investment Services Operations Division Tel. 0-2230-6061, 0-2230-5731