, _______________ (Mr. Kusol Sangkananta) Director/Chief Executive Officer

1 / 2 IR.022/2017 13 November 2017 Re: Clarification on the changes of Profit and Loss Statement To President The Stock Exchange of Thailand T Engineering Corporation Public Company Limited (the

. Sincerely yours, (Mr. Sompon Roekwibunsi) Chief Executive Officer Authorized to sign on behalf of the Company

practice of listed company for connected transaction B.C. 2546 (2003) dated 19 November 2003. Please be informed accordingly Yours Sincerely Mr. Pawat Vitoorapakorn Chief Executive Officer

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

million. Please be informed accordingly. Sincerely yours, (Mr.Nathapun Siriviriyakul) Deputy Chief Executive Officer – KTIS Group Authorized person to sign on behalf of the company Investor Relations

increased cost as mentioned above. Please be informed accordingly. Sincerely yours, Miss Sineemas Sotpiparpnukul Chief Executive Officer

- (Mr.Chanachai Joonjiraporn) Director and Chief Executive Officer Authorized to sign on behalf of the company

be informed accordingly. Yours sincerely, Preecha Nuntnarumit (Mr.Preecha Nuntnarumit) Chief Executive Officer

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