-Translation - AIS-CP 075/2005 August 1, 2005 Re: Consideration of amendment on the terms and conditions regarding the dividend covenant of the Company's debentures To: The President The Stock Exchange of Thailand According to the offering of Advanced Info Service Public Company Limited ("the Company")'s debentures, the details of the Company's debentures are as follows: 1. Debentures of Advanced Info Service Plc. No. 1/2001, due 2006 (AIS063A) 2. Debentures of Advanced Info Service Plc. No. 3/2001, due 2006 (AIS06NA) 3. Debentures of Advanced Info Service Plc. No. 1/2002, due 2009 (AIS093A) 4. Debentures of Advanced Info Service Plc. No. 2/2002, due 2009 (AIS093B) 5. Debentures of Advanced Info Service Plc. No. 3/2002, due 2007 (AIS073A) 6. Debentures of Advanced Info Service Plc. No. 4/2002, due 2007 (AIS07OA) The Company is now under consideration to propose the amendment on the terms and conditions regarding the dividend covenant of the Company's debentures in order to increase the flexibility in dividend payment. The Company will inform you the result of our consideration, accordingly. Please be informed accordingly. Sincerely yours, (Signed) Mr. Pong-Amorn Nimpoonsawat Chief Finance Officer Advanced Info Service Public company Limited