Shareholding Structure of the Company as at April 7, 2006

Translation April 20, 2006 Subject : To inform shareholding structure of the Company as at the latest book closing date To : Director and Manager Stock Exchange of Thailand To notify the Company's shareholders of the shareholding structure as at the book closing date for their acknowledgement before the Annual General Shareholders' Meeting in compliance with the Good Corporate Governance, the Company hereby declares the shareholding structure as at the latest book closing date on 7 April 2006 as follows: Shareholding Structure of Siam Makro Public Company Limited Shareholders Major Shareholders Major shareholders as at the latest book closing date (April 7, 2006) Name No. of shares % of all shares 1.) Siam Makro Holding 132,015,140 55.01 (Thailand) Ltd. 2.) Orkam Holding Asia N.V. 14,898,160 6.21 3.) Investors Bank and 11,898,900 4.96 Trust Company 4.) Mellon Bank, N.A. 7,418,777 3.09 5.) State Street Bank and 6,651,200 2.77 Trust Company, for London 6.) The Bank of New York 6,458,640 2.69 (Nominees) Limited 7.) Nortrust Nominees Ltd. 4,802,625 2.00 8.) BNP Paribas Securities 4,230,000 1.76 Services Luxembourg 9.) Aberdeen Growth Fund 3,480,500 1.45 10.) Somers (U.K.) Limited 3,429,600 1.43 Major Shareholder Groups The major shareholder groups as stated on the latest book closing date on April 7, 2006 are as follows : Name No. of shares % of all shares 1. SHV Group - Orkam Holding Asia N.V. 14,898,160 6.21 2. Joint venture among SHV Group and other shareholders - Siam Makro Holding 132,015,140 55.01 (Thailand) Ltd. Remark : SHV Group has control over the plan and the policies of the Company and its subsidiaries. Please be informed accordingly. Yours faithfully, Siam Makro Public Company Limited Signature (Mr. Charoen Assawajarukasem) SET Coordinator Manager