-Translation- AIS-CP 061/2005 June 2, 2005 Subject: Report on the results of the exercise of warrants (ESOP Grant I, II, III) in May 2005. 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 of ESOP Grant I Grant II Grant III The number of warrants (units) 14,000,000 8,467,200 8,999,500 Issuing Date March 27,2002 May 30,2003 May 31,2004 Exercise Price (Baht/Share) 46.780 42.302 90.637 Exercise Ratio (warrant : common share) 1:1.02549 1:1.02549 1 : 1.01272 Maturity of Warrants 5 years from the issuing date The Company would like to report the results of the exercise of warrants (ESOP Grant I, II, III) in May 2005, as follows: Outstanding of ESOP Grant I Grant II Grant III No. of exercised warrants in this month (units) 15,400 268,500 14,100 No. of remaining unexercised warrants (units) 4,329,400 5,628,600 8,985,400 No. of shares derived from this exercise (shares) 15,792 275,337 14,279 No. of remaining shares reserved for warrants (shares) 4,539,965 5,880,244 9,135,221 Please be informed accordingly. Yours sincerely, -Signed- Mr. Somprasong Boonyachai Director Advanced Info Service Public Company Limited