S&P MD&A Q1_2018-ENG -1- Ref. POL. 059/2018 May 08, 2018 Re: Clarification of the Performance of S & P Syndicate Public Company Limited Dear The President The Stock Exchange of Thailand S & P

. DOD017/2562 May 8, 2019 Re: Management’s Discussion and Analysis (MD&A) of the Consolidated Financial Results for Quarter 1 of 2019 To: The President The Stock Exchange of Thailand DOD Biotech Public

Page 1 of 4 No. RJH – SET 8/2019 13 May 2019 Subject : Management’s Discussion and Analysis for the First Quarter of 2019 To : The President The Stock Exchange of Thailand Rajthanee Hospital Public

and Analysis Quarterly Ending June 30, 2019 To : The President The Stock Exchange of Thailand The Board of Directors meeting of Ratchaphruek Hospital Public Company Limited (the Company) No. 3/2019

หนังสือแสดงการรับทราบความผิด 14 August 2019 Subject : Management Discussion and Analysis of the second quarter 2019 ended 30 June 2019 Attn. : Director and Manager The Stock Exchange of Thailand

Stock Exchange of Thailand The Board of Director’s meeting No. 4/2018 of General Engineering Public Company Limited (“the Company”) held on 15 May 2018 has approved and verified the financial statements

/2561 June 19, 2018 Subject: Management’s discussion and analysis of the Company’s operating results for Q1/2018 period To: President The Stock Exchange of Thailand DOD Biotech Public Company Limited

and Analysis Quarterly Ending September 30, 2018 To : The President The Stock Exchange of Thailand The Board of Directors meeting of Ratchaphruek Hospital Public Company Limited (the Company) No. 4/2018

Payment of Corporate Guarantee fee for the relating company (RPT) To: The Managing Director The Stock Exchange of Thailand (SET) According to the Extraordinary Shareholders Meeting of Phuket Fantasea Public

Page 1 of 4 No. RJH – SET 9/2020 10 August 2020 Subject : Management’s Discussion and Analysis for the Second Quarter of 2020 To : The President The Stock Exchange of Thailand Rajthanee Hospital