Submission of F/S and Explanation for Profit Change

Translation 6 August 2010 Subject : Submission of Financial Statements for the quarter 2/2010 To : Director and Manager Stock Exchange of Thailand Enclosed please find the Interim Consolidated and Company Financial Statements of Siam Makro Public Company Limited for the second quarter ended June 30, 2010 which have been reviewed by the certified public accountant. Revenues The Company achieved Baht 21,732 million consolidated revenues in second quarter of 2010 and this represented an increase of 14.3% from same period last year and an increase of 1.2% from previous quarter. The growth was mainly contributed by sales growth on same store basis (41 stores) and sales from 6 new stores opened since last half of 2009 until the end of this quarter (Store 46-Kanchanaburi and Store 47-Lopburi were opened during the second quarter of 2010). Gross Margin Gross margin as percentage to sales improved from same quarter last year of 6.1% to 7.0% while the absolute amount rose by 31.7% as a result better sales mix. Selling and Administrative Expenses Consolidated selling and administrative expenses were 18.4% higher than same quarter last year or increased by Baht 211 million. The significant increase in selling and administrative expenses was from the additional expenses of 6 new stores and the increase in expenses of like for like stores and Head Office by 8.1%. However, the percentage of selling and administrative expenses to total revenues of 6.3% was slightly higher than same period last year of 6.0%. Net Profit Consolidated net profit before tax was Baht 633 million, 44.5 % higher than last year due mainly to higher sales and improved gross margin. Makro net profit after tax was Baht 432 million, 49.6% higher than same period last year. Please be informed accordingly. Yours faithfully, Siam Makro Public Company Limited Signature (Mr. Charoen Assawajarukasem) SET Coordinator Manager