19 December 2007

The resignation and the appointment of Audit Committee

Ref: MCOT 6124/3039 December 18, 2007 The Stock Exchange of Thailand Attn: The President Re: To inform the resignation and the appointment of the replacement Audit Committee Dear Madam, The Board of Directors' Meeting No.19/2007 on 18 December 2007 at 13.00 at the Meeting Room, 6th Floor, MCOT Administration Building, 63/1 Rama IX Rd., Huay Kwang Sub-District, Huay Kwang District, Bangkok 10310 has resolved to acknowledge the resignation of Mr.Charnchai Soontharamut, effective date on 18 December 2007, and to acknowledge the appointment of Mr. Sahas Treetipbut, independent director, as the replacement Audit Committee. The members of the Audit Committee are as follows: 1. Mr.Wittayatorn Tokeaw 2. Mrs.Wilasinee Adulyanont 3. Mr.Sahas Treetipbut Sincerely yours, (Mr. Polchai Vinijchaikul) Vice President, Legal Affairs Office MCOT Public Company Limited Investor Relation Department Tel. 0 2201 6454, 6388 Fax 0 2245 1854