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

No. 256111002 14 November 2018 Subject: Management Discussion and Analysis for the third quarter ended 30 September 2018 To: President The Stock Exchange of Thailand M Vision Public Company Limited

: Directors and Manager, The Stock Exchange of Thailand N.D. Rubber Public Company Limited (“the Company” or “NDR”) would like to present the MD&A for the Three-Month period ended 31 March 2020 which was

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

Discussion and Analysis Quarterly Ending September 30, 2020 To : The President The Stock Exchange of Thailand The Board of Directors meeting of Ratchaphruek Hospital Public Company Limited ( the Company) No. 5

Discussion and Analysis Quarterly Ending September 30, 2019 To : The President The Stock Exchange of Thailand The Board of Directors meeting of Ratchaphruek Hospital Public Company Limited (the Company) No. 4

According to the referral from the Stock Exchange of Thailand (SET) and the SEC’s further investigation, Warot and Jeeranan, former EY assistant auditors, were involved in irregular securities and

(Translation) No. CK-19-0000-PO-L-0008 February 28, 2019 Re: Scheduling of the 2019 Annual Ordinary General Meeting of Shareholders and Declaration of Dividend Payment Attn: President of the Stock

the Stock Exchange of Thailand CH. Karnchang Public Company Limited hereby informs the resolutions of the Board of Directors’ Meeting No. 1/2019 which was held on February 28, 2019 as follows: 1

- Translation - Page 1 of 11 CBG 008/2018 21 February 2018 Subject Management discussions and analysis for the year ending 31 December 2017 To President The Stock Exchange of Thailand We, Carabao