1    (Translation) MD. 030/2018 February 21, 2018 Re: Management Discussion and Analysis For the Year Ended December 31, 2017 To: President The Stock Exchange of Thailand Management Discussion and

million or 3.2% compared to the same period of last year which were net loss of Baht 15.5 million, due reason to the following reasons: 1. Revenue from sales and services decrease from prior year by Baht

will help to increase public wealth and become a key economic driver towards sustainable growth in the long run. We believe this study project will be useful for the business sectors and the Thai capital

infrastructure initiative of the Thai Capital Market is a project initiated by SEC and launched on 3 September 2019 with the objective of improving the efficiency of the Thai Capital Market by adopting digital

capital from retail investors at the maximum amount of 20 million baht during the first 12 months and at total not more than 40 million baht (equity and debt combined) throughout the whole project. The

, they still need to develop further in the five following areas including 1) Anti-corruption 2) Whistleblowing 3) Effective implementation of business ethics 4) Review and monitor corporate strategy

1 / 2 IR.021/2019 13 November 2019 Re: Notification of the changes of the Profit and Loss Statement To President The Stock Exchange of Thailand We, T Engineering Corporation Public Company Limited

1 Ref : JSP/17/08/02 15 August 2017 Subject : Report the operating result for the quarter 2 Ending June 30, 2017 To : The Director and Manager The Stock Exchange of Thailand J.S.P. Property Public

1 Ref : JSP/17/11/01 10 November 2017 Subject : Report the operating result for the quarter 3 Ending September 30, 2017 To : The Director and Manager The Stock Exchange of Thailand J.S.P. Property

1 Ref : JSP/17/11/01 10 November 2017 Subject : Report the operating result for the quarter 3 Ending September 30, 2017 (revise) To : The Director and Manager The Stock Exchange of Thailand J.S.P