The dissemination of AGM 2010 on the company's website

ST. 010/2010/0010 March 22nd, 2010 Subject: The dissemination of Notice of the 16/2010 Annual General Meeting of Shareholders Attention: The President The Stock Exchange of Thailand Reference: (1) The letter of the Company No. ST. 010/2010/0006 dated on March 11th, 2010. Re: Dividend payment and Annual General Meeting of Shareholders for the year 2010 Whereas the Board of Directors of Sino-Thai Engineering & Construction Public Company Limited (the "Company") convened the Board of Directors Meeting No. 1/2008, the Company had its resolution on the Annual General Meeting of Shareholders No. 16/2010 that will be arranged on Friday 23rd April, 2010 at 10.00 hours, the Company's conference room No. 32/60 Sino-Thai Tower, 30th floor, Sukhumvit 21 Road (Soi Asok), Klongtoey-Nua Sub-district, Wattana District, Bangkok, 10110 Thailand. The record date for determination of which shareholders are eligible to attend the Annual General Meeting of Shareholders is fixed on March 25th, 2010 and the closing the Share Register Book on March 26th, 2010 according to the reference no. (1). The Company would like to inform that the Company has disclosed the Notice of the 16/2010 Annual General Meeting of Shareholders attached with related document on the Company's website: www.stecon.co.th since March 23rd, 2010 for shareholders' acknowledgement. It is therefore informed for your acknowledgement and dissemination to the public and other investors. Yours sincerely, Mr. Woraphant Chontong SEVP. Financial and Administration Division Company Secretary Office Telephone: 0 2260 1321 ext. 212, 274 Facsimile: 0 2259 4427