Secretary of the Securities and Exchange Commission The company clarify cause and reason if relative performance of a particular company varies more than 20% compared to previous year; we hereby explain our

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set-q1-62 (Translation) Ref.No.LEE 07/2019 May 14, 2019 Subject : Management Discussion and Analysis for the first quarter ended March 31, 2019 To : President of The Stock Exchange of Thailand We

set-q1-61 (Translation) Ref.No.LEE 09/2018 May 14, 2018 Subject : Management Discussion and Analysis for the first quarter ended March 31, 2018 To : President of The Stock Exchange of Thailand We

(-Translation-) Ref. No. U.SET 027/2018 June 4, 2018 Subject: Acquisition of 50 percent of ordinary shares in the subsidiaries of Sansiri Public Company Limited To: The President The Stock Exchange

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Stock Exchange of Thailand The operating performance for three-month period end of 31 March 2020 of Mahachai Hospital Public Company Limited compared to the prior year was decreasing in net profit