-Translation- AIS-CP 088/2010 September 2, 2010 Subject: Report on the results of the exercise of warrants (ESOP Grant V) in August 2010. 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 V The number of warrants (units) 10,138,500 Issuing Date May 31, 2006 Exercise Price (Baht/Share) 71.891 Exercise Ratio (warrant : common share) 1:1.27228 Maturity of Warrants 5 years from the issuing date The Company would like to report the results of the exercise of warrants (ESOP Grant V) in August 2010 as follows: Outstanding of ESOP Grant V No. of exercised warrants in this month (units) 620,700 No. of remaining unexercised warrants (units) 4,498,000 No. of shares derived from this exercise (shares) 789,678 No. of remaining shares reserved for warrants (shares) 5,972,456 Please be informed accordingly. Yours faithfully, -Signed- Mr. Vikrom Sriprataks Director Advanced Info Service Plc.