-Translation- AIS 0106/2003 May 6, 2003 Subject: Report on the results of the exercise of warrants (ESOP Grant 1) in April 2003 To: President The Stock Exchange of Thailand Whereas Advanced Info Service Public Company Limited ("the Company") issued and offered 14 million 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 at price 0 baht. The exercise date will be made within the last five business days of every month between 09.00 a.m. to 4.00 p.m., the first exercise date was between March 27 - 31, 2003. The details of exercise and conditions of warrants are as follows; Exercise Ratio and Exercise Price : 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 reserved for warrants : 14 million shares. The Company would like to report the results of the exercise of warrants (ESOP Grant 1) between April 24 - 30, 2003, as follows; The number of exercised warrants: - none - The number of remaining unexercised warrants: 14 million units Please be informed accordingly. Yours sincerely, -Signed- Mr. Somprasong Boonyachai Director Advanced Info Service Public Company Limited Compliance Department Tel. 0-2299-5561