ที่บชง Page 1 of 4 Ref. Bor Chor Ngor 0140 /2020 13 May 2020 Subject: Management Discussion and Analysis for the First Quarter ended 31 March 2020 To President The Stock Exchange of Thailand Quality

Attention: President The Stock Exchange of Thailand Regarding to JAS Asset Public Company Limited (“the Company”) Board of Meeting No.4/2020 on 15 May 2020, the resolution to certify the Company’s financial

Subject Management Discussion and Analysis for the second quarter ended 30 June 2020 Attention President The Stock Exchange of Thailand According to the resolution of the Board of Directors of JAS Asset

[COMPANY NAME] Ref.: EFORL IR037/2020 September 11, 2020 Subject: Management Discussion and Analysis Quarter 2 Ending 30 June 2020 To President The Stock Exchange of Thailand 1. Overview financial

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

to investors in private placement, the acquisition of assets and convening the Extraordinary General Meeting of the Shareholders No. 1/2018 (Revise) To : President, The Stock Exchange of Thailand

million compared to a gain from sales of long-term investment of THB 216 million in 2Q19. The revenue in 6M20 was THB 382 million, increased by THB 78 million or 25.7% YoY from gain on foreign exchange rate

1 Ref. No. IVL 007/08/2017 9 Aug 2017 The President The Stock Exchange of Thailand Subject: Submission of Quarterly Reviewed Financial Statements and the Management Discussion and Analysis of

(%) (1.4) 4.1 (5.5) EBITDA Ratio (%) 4.1 9.2 (5.1) EBITDAR Ratio (%) 10.2 15.1 (4.9) Remarks (1) Comprises of total revenue net dividend income, gain on foreign exchange, interest income and non-operating