Page 1 of 3 May 10, 2019 Re: Management Discussion and Analysis for Quarter 1/2019 (March 31 ,2019) To: Director and Manager of the Stock Exchange of Thailand Patkol Public Company Limited and its

previous Quarterly To: The President The Stock Exchange of Thailand As a result of the global economic slowdown, trade and economic negotiations and in Thailand have continued to slow down to wait for

August 14, 2019 Subject : Management Discussion and Analysis for Six-month and 2nd quarter ended June 30, 2019 Attention : President The Stock Exchange of Thailand 1. Operating Performance 1.1

หนังสือแสดงการรับทราบความผิด 11 May 2018 Subject : Management Discussion and Analysis of the first quarter 2018 ended 31 March 2018 Attn. : Director and Manager The Stock Exchange of Thailand Encls

หนา้1/2 (Translation) Ref. JCKH 014/2561 May 15, 2018 Subject: Management Discussion and Analysis for the Quarter 1/2018 To: The President The Stock Exchange of Thailand CC: The Secretary General The

Registration No. : 0107535000371 No. L041/2018 8th November 2018 Subject : The explanation of operating results for the 3rd quarter 2018 Attention : The President The Stock Exchange of Thailand Dear Sir, For the

1 / 2 No.IR.018/2020 14 May 2020 Re: Notification of the changes of the Profit and Loss Statement To: President Stock Exchange of Thailand We, T Engineering Corporation Public Company Limited (the

previous quarterly. To: The President The Stock Exchange of Thailand COVID-19 outbreak that pressures global economies into recession Governments around the world therefore issue stimulus measures such as

Microsoft Word - MD&A SET Q1'2020 ENG.doc Page 1 of 2 May 14, 2020 Re: Management Discussion and Analysis for the period ended March 31 ,2020 To: Director and Manager of the Stock Exchange of

, multiple organizations from various sectors have expressed their supports for the development of this system in every process, including the Stock Exchange of Thailand (SET), the Association of Thai