1 / 2 IR.023/2018 13 November 2018 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

Translation CEN 034-2018 November 13, 2018 Subject : Management Discussion and Analysis for quarter 3-2018 To : The Manager and President The Stock Exchange of Thailand Business operation for 3

MDE01_2018_10Jan2019 draft (Translation) No. 01/2019 January 10, 2019 President The Stock Exchange of Thailand Re: Notification of the Resolution of the Board of Directors’ Meeting No. 1/2019 We

BS09/2545 (Translation) No. 20/2019 September 10, 2019 President The Stock Exchange of Thailand Re: Notification of the Resolution of the Board of Directors’ Meeting No. 10/2019 We, AEON Thana Sinsap

BS09/2545 (Translation) No. 14/2020 September 15, 2020 President The Stock Exchange of Thailand Re: Notification of the Resolution of the Board of Directors’ Meeting No. 9/2020 We, AEON Thana Sinsap

October 30, 2020 Subject: The Management Discussion and Analysis for the second quarter ended June 30, 2020 To: President The Stock Exchange of Thailand Well Graded Engineering Public Company Limited (“the

November 13, 2020 Subject: The Management Discussion and Analysis for the third quarter ended September 30, 2020 To: President The Stock Exchange of Thailand Well Graded Engineering Public Company Limited

operate domestically, have a credit line with a financial institution not exceeding Baht 500 million, and had a non-NPL status as of December 31, 2019. This will not cover companies listed in the Stock

Microsoft Word - 2019 Results Notification letter_Eng _Final_ February 11, 2020 The Director and Manager The Stock Exchange of Thailand Re: Information concerning Fiscal Year 2019 Operating Results

for the year ended December 31, 2019 To Director and Manager of the Stock Exchange of Thailand Referring to the submission of the audited financial statements of WIIK Public Company Limited “the Company