Signed Site Preparation for the BKK Gov. Center Project

ST. 010/2005/0084 October 11th, 2005 Subject: Contract Signing of Site Preparation for the construction of Bangkok Government Center Project Attention: The President The Stock Exchange of Thailand Sino-Thai Engineering & Construction Public Company Limited is pleased to inform the SET that on 3rd October 2005, the Company has signed contract of Site Preparation for the construction of Bangkok Government Center Project with total contract value of 73,830,000 Baht (Include VAT). The owner of the project is Dhanarak Assets Development Company Limited. The contract period is 120 days. It is therefore informed for your acknowledgement and dissemination to the public and other investors. Yours sincerely Mr. Woraphant Chontong SEVP. Financial & Administration Division