-Translation- AIS. 0232 /2003 August 5, 2003 Subject: Report on the results of the exercise of warrants (ESOP Grant 1) in July 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 July was between July 25 - 31, 2003. The summary of terms and conditions of warrants are as follows; Exercise Ratio : 1 warrant per 1 ordinary share Exercise Price : Baht 48 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. reserved for warrants The Company would like to report the results of the exercise of warrants (ESOP Grant 1) in July 2003, as follows; The number of exercised warrants : 537,500 units The number of remaining unexercised warrants : 11,953,200 units Please be informed accordingly. Yours sincerely, -Signed- Mr. Somprasong Boonyachai Director Advanced Info Service Public Company Limited Compliance Department Tel. 0-2299-5561