-Translation- AIS-CP 112/2004 September2,2004 Subject: Report on the results of the exercise of warrants (ESOP Grant I and II) in August 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 47.174 per share Baht 42.634 per share Exercise Ratio 1 warrant per 1.01751 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 August 2004, as follows: Details ESOP Grant I ESOP Grant II The number of exercised warrants 43,300 units 95,700 units in this month The number of remaining unexercised 6,119,300 units 6,984,300 units warrants The number of ordinary shares 44,058 shares 97,374 shares derived from this exercise The number of remaining ordinary 6,149,964 shares 7,012,487 shares shares reserved for warrants Please be informed accordingly. Yours sincerely, -Signed- Mr.Pong-Amorn Nimpoonsawat Chief Finance Officer Advanced Info Service Public Company Limited