Ref.: SCG-SET-09-016 August 5, 2009 Re: Explanation of Results of Operating Results To: Managing Director Stock Exchange of Thailand The Company and its subsidiary had generated a net profit from the 2nd quarter of 2009 as of June ending of 46 million Baht consolidated and 50 million Baht for the Company only. The respective decrease of 32 million Baht or 41.18% and 34 million Baht, o 40.21% from the previous year was resulted from the following adverse factors: 1. Gross Profit or the revenues less cost of sales reduced by 25 million Baht Despite the revenues increased 22 million Baht, the gross profit was 25 million Baht lower due to - FT adjustment in accordance with the 13 % rise of the fuel gas price was suspended, the margin per unit of electricity sales to the industrial users was therefore affected. - Even the electricity and steam consumptions were gradually increasing but the total sales in the past quarter was approximately 9 % than the previous year. - The preventive shutdown maintenance of the steam turbine generator in April resulted in the addition fuel cost to the generated energy during the respective month by 4 million Baht. Cost of Sales 2. Administration and Remuneration Expenses increased by 6 million Baht The director remuneration of 2008 was booked in the 2nd quarter in lieu of the 1st quarter as the previous year. The financial statement indicated the administration and remuneration expenses for the 6 month as of June 2009 ending were lower than 2008 by 1.7 million Baht. 3. Financial Expenses and corporate income tax - The financial expenses decreased by 2.5 million Baht as of the loan restructuring effective June 2008. - The income tax increased by 3.5 million Baht since the income tax of the 2nd quarter 2008 was deducted by the overbooking in the 1st quarter. Best regards, (Mr. Viroj Theeravatvatee) Managing Director