Page 1 of 4 No. RJH – SET 7/2020 11 May 2020 Subject : Management’s Discussion and Analysis for the First Quarter of 2020 To : The President The Stock Exchange of Thailand Rajthanee Hospital Public

(Translation) UAC.CS/012/2020 May 14, 2020 Subject: Explanation of the operating results for the first quarter period ended March 31, 2020 To: President The Stock Exchange of Thailand Attachment

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

finished product during the TAM, resulting in the better gross refinery margin in this quarter. For BCP Trading Pte. Ltd., revenue rose from the higher oil products trading transaction volume. Marketing

Discussion and Analysis for 3rd quarter ended as of September 30, 2020 Attention: President The Stock Exchange of Thailand AI Energy Public Company Limited (AIE) would like to submit the financial statement

a private placement to CTBC at Baht 2.20 per share. Upon the completion of the transaction, the shares held by CTBC in the company will be equal to that of the aggregate shareholding of Land and

business through BCP Trading Co., Ltd., the company’s performance has improved from a higher transaction volume in terms of product line, and new trade partners. Marketing Business Group has exhibited

the company was voted for the third consecutive years. However, the company’s securities has selected in the SET High Dividend 30 Index or SETHD from the Stock Exchange of Thailand which the price index

for the third consecutive years. However, the company’s securities has selected in the SET High Dividend 30 Index or SETHD from the Stock Exchange of Thailand which the price index reference 30 shares

and Exchange; “Stock Exchange” means the Stock Exchange of Thailand according to the Law on Securities and Exchange; “beneficial owner of derivatives traded by a client” means: (1) an owner or co-owner