-Translation- CP-AIS 067/2004 June 3, 2004 Subject: Report on the results of the exercise of warrants (ESOP Grant I and II) in May 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 of warrants 14,000,000 Units 8,467,200 Units Issue Date March 27,2002 May 30,2003 Exercise Price Baht 47.402 per share. Baht 42.840 per share. Exercise Ratio 1 warrant per 1.01261 ordinary shares Maturity of Warrants 5 years from the first date of the issuance and offering of warrants. The Company would like to report the results of the exercise of warrants (ESOP Grant I and II) in May 2004, as follows: Details ESOP Grant I ESOP Grant II The number of exercised 180,000 units 503,700 units warrants in this month The number of remaining 6,916,700 units 7,963,500 units unexercised warrants The number of ordinary 182,266 shares 510,040 shares shares derived from this exercise The number of remaining 6,957,625 shares 8,004,491 shares 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