ที่ กตพ Ref. DBP. 156 / 2018 November 12, 2018 Subject : Clarification on Operating Results for the 3rd quarter and 9-month Period ending September 30, 2018 To : President The Stock Exchange of

Ref. DBP. 066 / 2020 May 11, 2020 Subject : Clarification on Operating Results for the 1st Quarter ending March 31, 2020 To : President The Stock Exchange of Thailand Diamond Building Products Public

structure 11. Corporate governance 12. Social responsibility 13. Internal control and risk management 14. Related party transactions 2.4 Financial position and operating results 15. Important financial

1 (Translation) MD. 108/2017 Aug 7, 2017 Re: Management Discussion and Analysis For the Operating Results ended June, 2017 To: President The Stock Exchange of Thailand Management Discussion and

1 (Translation) MD. 182 /2017 Nov 8 , 2017 Re: Management Discussion and Analysis For the Operating Results ended September, 2017 To: President The Stock Exchange of Thailand Management Discussion

- Translation - IR62/002 26 February 2019 Re: Management Discussion and Analysis (MD&A) for the year 2018 To: President The Stock Exchange of Thailand Overview and Factors Affecting Future Operating Results In

February 17, 2020 To: The President The Stock Exchange of Thailand Re: 2019 operating results We, Delta Electronics (Thailand) Public Company Ltd, would like to report the Company’s 2019 operating

Operating Results and Financial Position of the Company and its subsidiary 1.1 Analysis of Overall Operating Results for the Company and its subsidiary for the six-month period ended June 30, 2019 Table 1

February 18, 2019 To: The President The Stock Exchange of Thailand Re: 2018 operating results We, Delta Electronics (Thailand) Public Company Ltd, would like to notify the Company’s 2018 operating

Overall Operating Results for the Company and its subsidiary 1.1 Analysis of Operating Results for the Company and its subsidiary for the 3-month period ending 31 March 2020 Table 1: Overall operating