-Translation- AIS-CP 086/2004 July 2, 2004 Subject: Report on the results of the exercise of warrants (ESOP Grant I and II) in June 2004. To: The President The Stock Exchange of Thailand Advanced Info Service Public Company Limited ("the Company") issued and offered the warrants to purchase the Company's ordinary shares to directors and employees of the Company (ESOP). The details of Warrants are as follows: Details ESOP Grant I ESOP Grant II The number 14,000,000 Units 8,467,200 Units of warrants Issue Date March 27,2002 May 30,2003 Exercise Price Baht 47.402 Baht 42.840 per share. per share. Exercise Ratio 1 warrant per 1.01261 ordinary shares Maturity 5 years from the first date of the of Warrants issuance and offering of warrants. The Company would like to report the results of the exercise of warrants (ESOP Grant I and II) in June 2004, as follows: Details ESOP Grant I ESOP Grant II The number 298,900 units 404,400 units of exercised warrants in this month The number of 6,617,800 units 7,559,100 units remaining unexercised warrants The number of 302,667 shares 409,494 shares ordinary shares derived from this exercise The number of 6,654,958 shares 7,594,997 shares remaining ordinary shares reserved for warrants Please be informed accordingly. Yours sincerely, -Signed- Mr. Somprasong Boonyachai Director Advanced Info Service Public Company Limited Group Compliance Tel. 0-2299-5552