). In this regard, as evidence that each and every page of the documents is of the exact documents to which I/we have certified, I/we have also signed my/our initial(s) or signature(s) on each and every

Financial Statements for the Years ended 31 December 2017. Please find enclosed the Management Discussion and Analysis Please be informed accordingly. Yours sincerely - Signed - (Miss.Pakatip Lopandhsri

or 26.04% due to following reasons: 1. Revenue increase from electrical engineering; some project signed contract in 2017. 2. Revenue increase from telecommunication engineering; started new project in

totaling of 376.53 Million Baht. (Already signed contract totaling of 798.70 Million Baht, refer to Notification of project awarded to the SET on July 20, 2017 and August 3, 2017). 4. Testing and Inspection

decrease was mainly due to a decrease in gross profit margin and an increase in administrative expenses. Please be informed accordingly. Sincerely yours, -Signed- (Ms. Vasana Jantarach) Deputy Managing

for the loan from Xayaburi Power Company Limited, in which the contract was signed on May 17, 2016. In 1H/2017, administrative expenses amounted Baht 913.70 million, a rise of Baht 167.94 million or

was mainly due to a decrease in gross profit margin and an increase in administrative expenses. Please be informed accordingly. Sincerely yours, -Signed- (Mr. Jittiporn Jantarach) Managing Director

Reviewed Financial Statements for the Third quarter ended September 30,2017. Please find enclosed the Management Discussion and Analysis Please be informed accordingly. Yours sincerely Signed

accordance with the following rules; (1) prepare and complete the daily report of net liquid capital calculation by the following business day. Every report shall be signed by authorized person; (2) file the

) prepare and complete the daily report of net liquid capital calculation by the following business day. Every report shall be signed by authorized person; (2) file the report of net liquid capital