- Translation - Ref: AIS-CP030/06 February 27, 2006 Subject: Report of Financial Covenants Compliance Advanced Info Service Plc. To The President The Stock Exchange of Thailand Pursuance to the Terms and Conditions of the debentures of Advanced Info Service Plc. AIS063A, AIS06NA, AIS073A, AIS07OA, AIS093A, and AIS093B, the Company is required to maintain debt to equity ratio at not more than 2:1. This ratio will be calculated from an unconsolidated financial statement of the Company on a quarterly basis. The Company is, in addition, required to report a default on any debt obligation if there is any. In case that the Company pays dividend to the shareholders more than 40% of the net profit, the Company must maintain a credit rating at least AA. We would like to notify you that as at 31 December, 2005 the Company was not in default on any debt obligation. The Company can maintain the credit rating at AA. The debt to equity ratios of the Company as at 31 December 2005 were as follows: Debentures Debt to Equity ratio Conditions Compliance AIS063A less than or equal to 2:1 0.66:1 AIS06NA,AIS073A, less than or equal to 2:1 0.57:1 AIS07OA,AIS093A, AIS093B The Company is completely complied with the conditions set forth in the Terms and Conditions of the above debentures. Please be informed accordingly. -(Signed)- Mr. Pong-Amorn Nimpoonsawat Chief Finance Officer