- Translation - Ref: AIS-CP068/06 May 10, 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. 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 March, 2006 the Company was not in default of any debt obligation. The Company can maintain the credit rating at AA and the debt to equity ratio as at 31 March 2006 were 0.40 time. 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