นาสูความเปนเลิศ ทั้งในดานพาณิชยและคุณภาพผลิตภัณฑอยางเปนมืออาชพี” August 15, 2017 Subject: Clarification on the cause of changes in operating results over 20 percent. To: Director and Manager The

on the changes of the Profit and Loss for three- as follows: month period and six-month period ending 30 June 2017 2 / 2 Three-month period ending 30 June 2017 1. The revenues from construction is Baht

proportion of shareholders of 2,587.95 Million Baht as 144.00 Million Baht increased when compared to December 31, 2016 of 2,443.95 Million Baht due to changes in proportion in subsidiaries and decline in loss

operation before changes in operating assets and liabilities by Baht 157.3 million, increased of operating assets Baht 557.9 million and increased of operating liabilities Baht 205.0 million. 2. Net cash used

นาสูความเปนเลิศ ทั้งในดานพาณิชยและคุณภาพผลิตภัณฑอยางเปนมืออาชพี” November 14, 2017 Subject: Clarification on the cause of changes in operating results over 20 percent. To: Director and Manager

going to have some minor changes. 5. The consolidated gross profit margin was 14.32%, decreased from the same period of last year at 17.14% due to the declining in sales whereas depreciation was higher

1 / 4 No.IR.002/2018 22 February 2018 Re: Notification of the changes of the Profit and Loss Statement To: President Stock Exchange of Thailand We, T Engineering Corporation Public Company Limited

December 31, 2016 of 2,443.95 Million Baht due to changes in proportion in subsidiaries and decline in loss from business operation. Please be informed for acknowledgement, Sincerely yours, Mr. Wutichai

, decreased by Baht 1,042.7 million, because of decreased of profit from operation before changes in operating assets and liabilities by Baht 402.5 million, increased of operating assets Baht 652.1 million

or changes to the existing information systems in compliance with the established change control procedures; (4) carry out testing of information system developed or changed to ensure that such