subsidiary To : President The Stock Exchange of Thailand JCK International Public Company Limited (“the Company”) would like to notify that the Board of Directors’ Meeting of the Company No 1/2020, held on

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[COMPANY NAME] EFORL IR010/2018 March 20, 2018 Subject: Management Discussion and Analysis Yearly Ending 31 December, 2017 To President The Stock Exchange of Thailand 1. Overview financial

May 13th, 2019 Subject Management Discussion and Analysis for the three months period ended March 31, 2019 To The President The Stock Exchange of Thailand Day Dream Public Company Limited (the

President The Stock Exchange of Thailand Rajthanee Hospital Public Company Limited (“the Company”) would like to clarify the operating results of the Company and its subsidiaries for the 2nd quarter of 2018

Page 1 of 4 No. RJH – SET 10/2018 12 November 2018 Subject : Management Discussion and Analysis for the 3rd quarter of 2018 ending September 30, 2018 To : The President The Stock Exchange of Thailand

(Translation) UAC.CS/015/2020 August 14, 2020 Subject: Explanation of the operating results for the second quarter period ended June 30, 2020 To: President The Stock Exchange of Thailand Attachment

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13 November 2020 Subject Management Discussion and Analysis for the Nine months ended September 30, 2020 To The President The Stock Exchange of Thailand Do Day Dream Public Company Limited (the