Signing contract totaling 2,427,562,500 Baht

ST. 010/2008/0014 March 5th, 2008 Subject: Signing contract totaling 2,427,562,500 Baht Attention: The President The Stock Exchange of Thailand Sino-Thai Engineering & Construction Public Company Limited is pleased to inform the SET that the company has signed new contract totaling 2,427,562,500 Baht (Include VAT), the details are as follows: 1st Contract Project name : the Construction of Roof structure cover second floor for Viharnkort Project in Wat Prathammakay (Contract No. ROOF/VHK/001/51 dated on January 16th, 2008) Project owner : Wat Prathammakay Contract value: THB 2,358,012,500.- (Include VAT) Scope of work: the construction of RC. Roof structure above second floor - approximately area of 300,000 sq.m. Construction period: 730 days (January 16th, 2008 - January 14th, 2010) 2nd Contract Project name : the Construction of MCC Building Package for Polyethylene Train II Project (Contract No. 738/REV.0 dated on February 8th, 2008) Project owner : Siam Polyethylene Company Limited Contract value: THB 69,550,000.- (Include VAT) Scope of work: the construction of MCC building. Construction period: February 8th - December 27th, 2008 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