-Translation- AIS-CP 101/2004 August 16, 2004 Subject: Notification of the increase in capital and the investment in Advanced Data Network Communications Co, Ltd. To: The President The Stock Exchange of Thailand Advanced Info Service Public Company Limited (the "Company") would like to inform the Stock Exchange of Thailand ("SET") that the shareholders' meeting of Advanced Data Network Communications Co,Ltd.(ADC), a 67.95% subsidiary of the Company (TOT Corporation PLC. holds 23.50% and other minority shareholders aggregately hold 8.55%), passed the resolutions approving an increase of ADC registered capital from 457.52 million Baht divided into 45.75 million shares at par value of 10 Baht each, to 957.52 million Baht divided into 95.75 million shares at par value of 10 Baht each. The newly issued capital of 500 million Baht divided into 50 million shares at par value of 10 Baht each, shall be issued and offered by a rights issue to the existing shareholders. Accounting to the investment policy, the Company considered a subscription of ADC's shares in the amount of 17.75 million shares at 10 Baht each, (The book value of ADC as of June 30, 2004 is approximately 9.62 Baht per share) amounting to a total investment of 177.50 million Baht. After the subscription, the Company's stake in ADC will be reduced to 51%. ADC considered a reallocation of the unsubscribed shares to the existing unconnected shareholders who would like to purchase more. Please be informed accordingly. Yours sincerely, -Signed- Mr. Somprasong Boonyachai Director Advanced Info Service Public Company Limited