Form for Shares Written Off and a Decrease in Paid-up Capital of Advanced Info Service Plc. Date: June 1, 2006 In reference to the Ministry regulations on Treasury Stock Rules, the Company that has repurchased its shares has to dispose of all of these within a 3-year period commencing from the completion of the repurchase. Advanced Info Service Plc ("the Company") repurchased 2,540,200 of its ordinary shares between December 2, 2002 and June 1, 2003 but as of June 1, 2006, has not disposed of any of these. In order to comply with the aforementioned regulations, the Company will write off its repurchased shares and decrease its paid-up capital as follows: 1. Shares written off The number of shares written off, decreasing the paid-up capital, is equal to 2,540,200 shares at par value 1 baht per share which are equal to 0.09% of the paid-up capital before cancellation. 2. The Company's paid-up capital As a result of writing off these shares, the Company now has the following capital: Original capital of 2,952,804,650 shares at par value 1 baht/share, totaling 2,952,804,650 baht; New capital* of 2,950,264,450 shares at par value 1 baht/share, totaling 2,950,264,450 baht. The Company will first register this change of capital with the Ministry of Commerce and then inform the SET. * Note: The Company is in the process of registering the new paid-up capital, which came from the exercise of ESOP in May 2006 amounting to 1,241,383 shares. After that is completed, the Company will have: New capital 2,951,505,833 shares at par value 1 baht/share, the total which 2,951,505,833 baht. The Company certifies that the information contained in this report is true and complete in all respects. Signed ( Mr.Somprasong Boonyachai ) Director Advanced Info Service Plc.