Translation CEN 016-2020 August 14, 2020 Subject Management Discussion and Analysis for business operation of Quarter 2/2020 To The Manager and President The Stock Exchange of Thailand Capital

approving 535,436, Company amendme registered 4, 2019 Notificatio of the Da Capital by Director a The Stock re 1. Capita 2. Inform Existin As Nation s’ Meeting No d the significa 1. Resolv g the decreas

with Baht 3,376.19 million in the same period of the previous year, which decreased by 2.4 percent. The decrease in sales was due to the lower average prices in main products like copper, aluminum and

progress of the works which certified by customers. Since 2018 up to present, the Group has construction projects which hired by main contractors rather than owner projects. Due to the construction projects

to the Notification of Capital Market Supervisory Board Ref. No. TorJor. 20/2551 Subject : Rules for entering into Material Transaction Deemed as Acquisition or Disposal of Assets. From calculation the

Microsoft Word - 5. TKS - SET Announcement (BOD) (EN) (2nd amendment).docx 1 (-Translation-) Ref. IR 60/011 December 12, 2017 Subject: Reduction of the Registered Capital, Conditional Voluntary

offering of warrant to purchase ordinary shares of the Company to existing shareholders and joint ventures in subsidiary. (Edited) To: The President The Stock Exchange of Thailand Enclosure 1. Capital

quarter of 2018, credit demand improved from the previous quarter, due to SMEs’ requirements for working capital and inventory build-up purposes, especially in the agricultural sector. Demand for loans from

Acquisition of Assets and the Connected Transaction 2. Information Memorandum regarding the offering of the newly issued ordinary shares to specific investors (Private Placement) 3. Capital Increase Report Form

Acquisition. To: The President The Stock Exchange of Thailand Enclosure 1. Information Memorandum on the Acquisition of Assets of Hydrotek Public Company Limited 2. Capital Increase Form (F 53-4) 3. Information