- Translation - AIS-CP 052/2007 May 11, 2007 Subject: Submission of Reviewed Consolidated and Company Financial Statements for the First Quarter of Year 2007 and Clarification of the differences between net profit for the first quarter of 2007 and the first quarter of 2006 is over 20% To: The President The Stock Exchange of Thailand Enclosure: 1. Reviewed consolidated and company financial statements for the first quarter of year 2007 in Thai and English version 2. Management and Discussion Analysis for the first quarter of year 2007 in Thai and English version 3. Reports Reviewed Quarterly Financial Statements (F45-3) Advanced Info Service Public Company Limited ("the Company") would like to submit the reviewed consolidated and company financial statements for the first quarter of 2007. In addition, the Company would like to clarify on the operating results of the Company and its subsidiaries which had been changed from the same period of last year by more than 20%. Net profit reported 3,984 million, decreased by Baht 1,306 million or 24.7% from Baht 5,290 million in the first quarter 2006, due to the significant causes as follows: 1. Revenue - Revenue from services and equipment rental in the first quarter 2007 were Baht 19,493 million, decreased by Baht 1,774 million or 8.3% when compared with those of the first quarter 2006 due mainly to a decline in average tariffs and average revenue per user ("APRU") as the competition in the market remained intense. - Revenue from sales were Baht 4,006 million in the first quarter 2007, increased by Baht 585 million or 17.1% from Baht 3,421 million in the first quarter 2006 as a result of higher units sales of handset. 2. Cost and expenses - Cost of sales in this quarter were Baht 3,676 million, increased by Baht 675 million or 22.5% from Baht 3,000 million in the first quarter 2006 due to higher units sales of handset. - Selling and administrative expenses were Baht 3,126 million in the first quarter of 2007, an increase of Baht 309 million or 11.0% when compared to the first quarter 2006, reflected mainly from higher marketing activities and more spending in brand and distribution. Please be informed accordingly. Yours faithfully, - Signed - Mr. Somprasong Boonyachai Director Advanced Info Service Public Company Limited