Work System, Contact with Investors and General Business Operation of Trustees

Rules, Conditions and Procedures for Controlling Operation of Securities Underwriting (No. 3)

Rules, Conditions, and Procedures for Operation of Securities Clearing Houses and Central Securities Depositories

Rules, Conditions and Procedures for Outsourcing Function related to Business Operation to Third Party

since its Commercial Operation Date on July 20, 2017. On the contrary, its maintenance costs was also incurred during this period. Quezon (Include PEPOI and QMS): Unit : Million Baht Quarter 1 Change

made to disclose information and the vision of the management in order to assist investors to better understand the company's financial status and operation. It also supports the "Good Corporate

- 2020 Balance by Quarter Change Q2–20 Q1–20 Q2–19 Q2–20 VS Q1–20 Q2–20 VS Q2–19 (Million Baht: MB) (MB) % (MB) % Total Revenue 1,187.6 1,231.7 1,729.6 (44.1) (3.6) (542.0) (31.3) Total Operating Expenses

Revenues Consolidated financial statements (Thousands Baht) Year Change 4th Quarter Change 2019 2018 Amount % 2019 2018 Amount % Revenue from sales 2,334,510 1,540,078 794,432 51.58% 607,273 371,532 235,741

the vision of the management in order to assist investors to better understand the company's financial status and operation. It also supports the "Good Corporate Governance Project" of the Securities

1 / 2 IR.019/2017 15 August 2017 Re: Clarification on the change of profit and loss statement To President The Stock Exchange of Thailand T Engineering Corporation Public Company Limited (the