12th May 2020 Subject: Management Discussion and Analysis for the three-month period ending 31st March 2020. Attention: President Stock Exchange of Thailand Please find below the additional

Our Ref: TL015/02 Our Ref: TL012/18 August 14, 2018 The Stock Exchange of Thailand 93, The Stock Exchange of Thailand Building Ratchadapisek Road, Dindaeng Bangkok 10400 Attention: The President Dear

May 12, 2018 Subject: Clarification of Operating Results for The three -month period ended March 31, 2018 Attention: President The Stock Exchange of Thailand Further to our submission of the report

Stock Exchange of Thailand For the Q1/2019 period ended of March 31, 2019 operating result of S.Pack & Print Public Company and Its Subsidiary in Statement of Comprehensive Income net profit Baht 0.98

Manager The Stock Exchange of Thailand The operating performance for three-month period end 31 March 2019 of Mahachai Hospital Public Company Limited compared to the prior year was decreasing in net profit

Stock Exchange of Thailand For the Q2/2018 period ended of June 30, 2018 (6 months) operating result of the company net loss Baht 6.02 Million comparison with the previous Q2/2017’s net loss of Baht 9.08

จดหมายชี้แจงq261e August 14, 2018 The Managing Director The Stock Exchange of Thailand Subject : Management Discussion and Analysis for three month Ending 30 June 2018 Summary on Second Quarter

จดหมายชี้แจงq361e November 12, 2018 The Managing Director The Stock Exchange of Thailand Subject : Management Discussion and Analysis for three month Ending 30 September 2018 Summary on Third Quarter

three -month period ended March 31, 2020 Attention: President The Stock Exchange of Thailand Further to our submission of the report and the financial statements for the three-month period ended March 31

Ref: SP 2020/008 Date : May 14, 2020 Subject : The Explanation to SET concerning the operating result for Q1/2020 more than 20% Attention : The Director and Manager of the Stock Exchange of Thailand