page 1/6 (TRANSLATION) Ref. WINNER 0004/2019 February 26, 2019 Re Management Discussion and Analysis (MD&A) for the year 2018 and for the year 2017_revised 2 To The President The Stock Exchange of

16 August 2019 Subject: Report of significant resolutions of Board of Directors’ meeting Attention: Director and Manager The Stock Exchange of Thailand (SET) Nation Multimedia Group Public Company

Page 1 of 2 No. ACC6108/02 August 14, 2018 Subject: Explanation of Financial Performance for the Quarter 2/2018 ended June 30, 2018 To: President, The Stock Exchange of Thailand According to the

financial organizations from both public and private sectors convened a joint press conference at the Stock Exchange of Thailand (SET) today (March 31, 2025) to provide investors and the general public with

1 / 4 No.IR.002/2018 22 February 2018 Re: Notification of the changes of the Profit and Loss Statement To: President Stock Exchange of Thailand We, T Engineering Corporation Public Company Limited

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) UAC.CS/013/2019 August 14, 2019 Subject: Explanation of the operating results for the second quarter period ended June 30, 2019 To: President The Stock Exchange of Thailand Attachment

(Translation) UAC.CS/021/2018 November 14, 2018 Subject: Explanation of the operating results for the third quarter period ended September 30, 2018 To: President The Stock Exchange of Thailand

(Translation) UAC.CS/016/2019 November 7, 2019 Subject: Explanation of the operating results for the third quarter period ended September 30, 2019 To: President The Stock Exchange of Thailand

No. ADD 12/2021 15 November 2021 Subject: Management discussion and analysis for the performance for the nine-month period ended 30 September 2021 To: President The Stock Exchange of Thailand AddTech