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concerning the Determination regarding Definition of Institutional Investor and High Net Worth Investor . “ client ” means user of an intermediary ’s services. “ Stock Exchange ” means the Stock Exchange of

Company Limited and schedule of Date of EGM No 1/2018 (Revised) To: The President The Stock Exchange of Thailand Enclosure: Information Memorandum on the disposal of shares and connected transaction in Thai

for Year 2017 Ending 31 December 2017 To : The President The Stock Exchange of Thailand The Board of Directors meeting of Ratchaphruek Hospital Public Company Limited (the Company) No. 1/2018 dated 24

SAAM Energy Development Public Company Limited - 1 - 10 May 2019 Subject: Management Discussion and Analysis for the period ended 31 March 2019 To: The President The Stock Exchange of Thailand SAAM

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of the Board of Directors Meeting No. 2/2019 and the convening of the 2019 Annual General Shareholders Meeting To President Stock Exchange of Thailand Reference Letter to the President of the Stock

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1/4 August 13, 2020 Re: Clarification of the operating results of company and its subsidiaries for the six months period end June 30, 2020 To: President The Stock Exchange of Thailand K.C. Property