investors accordingly. Please be informed accordingly. Sincerely yours, (Mr. Chawalit Tippawanich) President and Chief Executive Officer Global Power Synergy Public Company Limited Investor Relations Division

Diamond Building Products Public Company Limited (Mr. Satid Sudbuntad) Chief Executive Officer

Company Limited ______________________________ (Mr. Pete Bodharamik) Chief Executive Officer

, PATKOL PUBLIC COMPANY LIMITED (Mr.Sangchai Chotchuangchutchaval) Chief Executive Officer Page 3 of 3

Chief Executive Officer Jubilee Enterprise Public Company Limited 2/2

informed accordingly Sincerely yours, U City Public Company Limited ________________________________ (Miss Piyaporn Phanachet) Director and Chief Executive Officer

, Mr. Pawat Vitoorapakorn Chief Executive Officer Eastern Polymer Group Public Company Limited

, Jasmine International Public Company Limited ______________________________ (Mr. Pete Bodharamik) Chief Executive Officer

Chief Executive Officer Eastern Polymer Group Public Company Limited

faithfully, PATKOL PUBLIC COMPANY LIMITED (Mr.Sangchai Chotchuangchutchaval) Chief Executive Officer