03 January 2008

Contract Signing of the 2nd Polyethylene Train Project

ST. 010/2008/0002 January 2nd, 2008 Subject: Contract Signing of the Construction of the 2nd Polyethylene Train Project Attention: The President The Stock Exchange of Thailand Sino-Thai Engineering & Construction Public Company Limited is pleased to inform the SET that on November 16th, 2007, the company has signed new contract total value THB 609,900,000 (Include VAT), which can be divided into 2 contracts as follows: Contract 1 Project name : the Construction of the 2nd Polyethylene Train Project (Contract No. 684/REV.0 dated on November 16th, 2007) Project owner : Siam Polyethylene Company Limited Contract value: THB 171,200,000 (Include VAT) Scope of work: the construction of civil work and reinforce concrete structure 10,000 cu.m. Construction period :January 2008 - December 2009 (the project is scheduled to commence on January 7th, 2008) Contract 2 Project name : the Construction of the 2nd Polyethylene Train Project (Contract No. 685/REV.0 dated on November 16th, 2007) Project owner : Siam Polyethylene Company Limited Contract value: THB 438,700,000 (Include VAT) Scope of work: the construction of mechanical work, 2,600 tons steel structure fabrication and installation, piping installation, and furnishing equipment 1,700 tons that necessary to construct the work. Construction period :January 2008 - December 2009 (the project is scheduled to commence on April 1st, 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