ข่าวแจ้งตลาดหลักทรัพย์

Ref: CK-06-0000-AFS-L-0084 May 15th, 2006 Attention : President The Stock Exchange of Thailand Subject : Declaration of Operating Result of the three-month Ended March 31, 2006 Compared with the three-month Ended March 31, 2005 CH.Karnchang Public Company Limited, Subsidiaries and joint ventures have the operation result of the three-month period, as of March 31, 2006 reached the profit increased to 386.5% compared with the same fiscal year of 2005 due to the following factors : 1. The company has gained the profit from selling short term investment in the amount of 1,000 million baht in the year 2006 2. The company has an increasing income from the progress of the projects which have high value, such as the Southen Outer Bangkok Ring Road Project and the Ground Improvement for the 1st Midfield Satelite Aporns and 3rd Runway Project For your consideration. Sincerely yours, (Mr.Plew Trivisvavet) (Mr.Narong Sangsuriya) Directors