-Translation- AIS. 0301/2003 October 2, 2003 Subject: Report on the results of the exercise of warrants (ESOP Grant 1) in September 2003 To: The President The Stock Exchange of Thailand According to Advanced Info Service Public Company Limited ("the Company") issued and offered 14,000,000 units of warrants to purchase the Company's ordinary shares to directors, employees, and advisors of the Company (ESOP Grant 1) on March 27, 2002. The exercise date will be made within the last five business days of every month between 9.00 a.m. and 4.00 p.m.. The exercise date of September was between September 24 - 30, 2003. The summary of terms and conditions of warrants are as follows; Exercise Ratio : 1 warrant per 1.00559 ordinary share Exercise Price : Baht 47.733 per share. Maturity of warrants : 5 years from the first date of the issuance and offering of warrants. Number of ordinary shares : 14,000,000 shares. reservedfor warrants The Company would like to report the results of the exercise of warrants (ESOP Grant 1) in September 2003, as follows; The number of exercised warrants : 133,100 units The number of remaining unexercised warrants : 11,119,700 units Please be informed accordingly. Yours sincerely, -Signed- Mr. Somprasong Boonyachai Director Advanced Info Service Public Company Limited Legal & Compliance Department Tel. 0-2299-5561