(Translation) AIS-CP 073/2008 May 30, 2008 Subject: Notification of disposal of 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 you that the Company has sold the ordinary shares of Advanced Data Network Communications Co., Ltd.("ADC"), which 51.00% of its shares are held by the Company to Digital Phone Co., Ltd.("DPC"), which 98.55% of its shares are owned by the Company. The selling price is based on the ADC's book value as of February 29, 2008, totaling amount of Baht 199,240,761.60. After the disposal, ADC remains the Company's subsidiary through DPC's holding. The objective of this transaction is to restructure the group organization to create a synergy of voice and data communication via mobile and internet network that will add more values to DPC in the future. This transaction is not considered a connected transaction or the acquisition and disposal of assets under the Rules and Procedures and Disclosure of Connected Transaction of Listed Companies of the SET. Please be informed accordingly. Yours faithfully, -signed- Mr. Pong-amorn Nimpoonsawat Chief Finance Officer Advanced Info Service Plc. Compliance Department Tel: 02-6874278