February 28,2020 Re: Clarification of the operating results of company and its subsidiaries for the year ended as at December 31, 2019 To: President The Stock Exchange of Thailand K.C. Property

Analysis for the first quarter 2020 of Seven Utilities and Power Public Company Limited To: The President The Stock Exchange of Thailand Seven Utilities and Power Public Company Limited ( the Company ) would

Stock Exchange of Thailand K. W. Metal Work Public Company Limited (the “Company”) would like to submit management discussion and analysis of significant changes for the 3-month period ended March 31

Stock Exchange of Thailand With respect to the financial information for the 2nd quarter ended 30 June 2020, as submitted by the Company, which has been audited by the external auditor, considered by the

Discussion and Analysis for the second quarter 2020 of Seven Utilities and Power Public Company Limited To: The President The Stock Exchange of Thailand Seven Utilities and Power Public Company Limited (“the

March 31, 2020 To The President The Stock Exchange of Thailand Management’s Discussion and Analysis Consolidated Financial Statements For three months ended March 31, 2020 Overall Group Performance Table

Rnj, (Translation) MD. 073/2020 May 13 , 2020 Re: Management Discussion and Analysis For the Operating Results ended March 31, 2020 To: President The Stock Exchange of Thailand Management Discussion

Analysis for the second quarter ended June 30, 2020 Attention The President The Stock Exchange of Thailand Attachment Report and interim financial statement for the second quarter ended June 30, 2020

Earth Tech Environment Public Company Limited 11th November 2020 Subject Management Discussion and Analysis Financial Performance for the quarter ended 30th September 2020 To President The Stock

November 11, 2020 Subject: Management’s Discussion and Analysis for the third quarter of 2020 To: The President The Stock Exchange of Thailand (SET) DOD Biotech Public Company Limited and its subsidiaries