หนังสือแสดงการรับทราบความผิด 14 August 2018 Subject : Management Discussion and Analysis of the second quarter 2018 ended 30 June 2018 Attn. : Director and Manager The Stock Exchange of Thailand

หนังสือแสดงการรับทราบความผิด 13 November 2018 Subject : Management Discussion and Analysis of third quarter ended 30 September 2018 Attn. : Director and Manager The Stock Exchange of Thailand Encls

foreign exchange hedging at Baht 2.1 million. Other income reported at Baht 0.9 million from transportation, sales of scraps, and obsolete equipment. Gross profit margin slightly increased from 32.2% to

% Finance cost 35.09 41.36 6.27 17.87% Income tax expenses 37.04 42.24 5.20 14.04% Net profit 139.02 150.12 11.10 7.98% Net profit ratio (ROS) 19.92% 17.25% Earnings per share (Baht) 0.26 0.28 0.02 6.92

49.34 17.69% Finance cost 49.11 68.10 18.99 38.67% Income tax expenses 48.04 57.52 9.48 19.73% Net profit 181.71 202.58 20.87 11.49% Net profit ratio (ROS) 17.16% 15.74% Earnings per share (Baht) 0.34

67.37 94.72 27.35 40.60% Income tax expenses 59.19 65.40 6.21 10.49% Net profit 227.68 252.81 25.13 11.04% Net profit ratio (ROS) 16.00% 14.78% Earnings per share (Baht) 0.37 0.42 0.05 13.51% Total

Date of EGM 1/2020 (Revise) Dear Directors and Managers Stock of Exchange of Thailand Attachment 1. Extraordinary General Meeting of Shareholders No. 1/2020 2. Information Regarding the Asset Acquisition

. Notification of the Office of the Securities and Exchange Commission Concerning Granting of Approval of Financial Advisors and Their Scope of Work ______________________ Whereas the notifications issued by the

1 No. For. 37/2018 November 28, 2018 Subject: Notification on the additional investments in shares of M.K. Real Estate Development Plc. To: President The Stock Exchange of Thailand Enclosure

Disposal of Assets (Additional) To: President The Stock Exchange of Thailand Enclosures: 1. Information Memorandum on the Acquisition and disposal of Assets Board of Directors Meeting of E for L Aim Public