to listed companies with outstanding performance in investor relations activities organised by the Stock Exchange of Thailand (SET) and Money & Banking Magazine. MACO is one of the companies that

EBITDA (%) 40.4% 45.4% Quick ratio (times) 0.8 0.7 Cash-to-net profit (%) 99.2% 96.4% Account receivable turnover (times) 4.9 4.3 Net profit (excl. NCI) (%) 23.9% 20.3% Average collection period (days

-Dec-17 Gross profit (%) 57.2% 60.6% Current ratio (times) 0.9 1.9 Operating EBITDA (%) 32.1% 38.0% Quick ratio (times) 0.8 1.8 Cash-to-net profit (%) 128.9% 100.9% Account receivable turnover (times

(Translation) February 27, 2019 Ref: SET-2019-003 Re: Management's Discussion and Analysis and operating results for the Year 2018 Attn. to: President The Stock Exchange of Thailand Filter Vision

(Restated) 31-Mar-18 Gross profit (%) 58.4% 61.0% Current ratio (times) 0.9 1.8 Operating EBITDA (%) 44.5% 43.0% Quick ratio (times) 0.8 1.2 Cash-to-net profit (%) 94.8% 101.1% Account receivable turnover

FINANCIAL RATIOS Profitability Ratios 1Q 2017/18 1Q 2018/19 Liquidity Ratios 31-Mar-18 30-Jun-18 Gross profit (%) 58.2% 63.6% Current ratio (times) 1.8 5.2 Operating EBITDA (%) 41.4% 47.1% Quick ratio (times

(times) 1.8 3.2 Operating EBITDA (%) 45.4% 41.5% Quick ratio (times) 1.2 2.0 Cash-to-net profit (%) 96.8% 53.9% Account receivable turnover (times) 4.1 3.6 Net profit (excl. NCI) (%) 20.3% 20.8% Average

June 2020 To : The President The Stock Exchange of Thailand Bangkok Chain Hospital Public Company Limited (the “Company”) would like to report the operating results for the second quarter ended 30 June

reference. PAGE 2 Notification of the Office of the Securities and Exchange Commission No. Sor Thor. 48/2559 Re: Repeal of the Notification of the Office of the Securities and Exchange Commission regarding

reference. Notification of the Office of the Securities and Exchange Commission No. Sor Thor. 48/2559 Re: Repeal of the Notification of the Office of the Securities and Exchange Commission regarding