Signed the Utilities Relocation Contract for Rail Link Proj.

ST 010/2005/0083 October 11th, 2005 Subject: Contract Signing of the Utilities Relocation for Airport Rail Link Project Attention: The President The Stock Exchange of Thailand Sino-Thai Engineering & Construction Public Company Limited is pleased to inform the SET that on 28th September 2005, the Company has signed contract of the utilities relocation for Airport Rail Link project with total contract value of 206,476,900 Baht (Include VAT). The owner of the project is State Railway of Thailand. The period is 180 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