Statements for the first quarter ended March 31,2018. Please find enclosed the Management Discussion and Analysis Please be informed accordingly. Yours sincerely - Signed - (Miss.Pakatip Lopandhsri) Director

. Sincerely yours, -Signed- (Mr. Jittiporn Jantarach) Managing Director

, -Signed- (Mr. Jittiporn Jantarach) Managing Director

Audit Committee and/or directors which are different from the opinions of the Board of Directors (Translation) - None - Please be informed accordingly. Sincerely yours, - Signed - (Mr. Sarath

. Please kindly be informed accordingly. Yours sincerely, -Signed- Jirayut Rungsrithong President & CEO Legal Affairs and Corporate Governance Office. Tel. 02-272-1600 ext. 2522, 2523

Engineering Public Company Limited -signed- (Mr. Wuttichai Sresthabutra) Director

sincerely, -Signed- Jirayut Rungsrithong President & CEO Legal Affairs and Corporate Governance Office. Tel. 02-272-1600 ext. 2522, 2523

signed with the capital market regulators of Laos PDR., Cambodia and Vietnam for cooperation on capital market development where the signatories take turn to host the meeting. Among ASEAN nations, the

with leading private organizations to foster CG culture in the capital market through the Private Sector Anti-Corruption Coalition. Currently, 121 companies have signed the Declaration of Intent to fight

understanding signed with the capital market regulators of Laos PDR., Cambodia and Vietnam for cooperation on capital market development where the signatories take turn to host the meeting. Among ASEAN nations