ที่ กตพ Ref. DBP. 080 / 2018 May 31, 2018 Subject : Connected Transaction in Respect of Office Lease Agreement Extension To : President The Stock Exchange of Thailand Diamond Building Products Public

[Translation] Page 1 of 2 Ref. PDI/BK-BS-044/2017 8 August 2017 To : President The Stock Exchange of Thailand Re. : Resolutions of the Board of Directors’ Meeting, No. 03-2017 The Board of Directors

[Translation] Page 1 of 2 Ref. PDI/BK-BS-048/2017 18 August 2017 To : President The Stock Exchange of Thailand Re. : Invest in Short Bill of Exchange in Thai Baht currency with specified the

and Manager The Stock Exchange of Thailand The operating performance for three-month period ended 30 September 2017 of Mahachai Hospital Public Company Limited was highlighted as follow: 1. Company

MATI 07/2561 February 27, 2018 Subject Consolidated Financial Report for the year which ended at December 31, 2017 To Director and Manager The Stock Exchange of Thailand Operating income of Matichon

Exchange of Thailand The Board of Directors Meeting of Ladprao General Hospital Public Company Limited (the “Company”), No.5/2019, held on November 13, 2019, has approved the financial statements of the

Thailand The Board of Directors Meeting of Ladprao General Hospital Public Company Limited (the “Company”), No.2/2020, held on May 13 , 2020 , has approved the financial statements of the Company and its

Professional Center Co. Ltd.3. Dr. Kitti Kosavisutte, Chairman of Thailand Banking Sector Computer Emergency Response Team (TB-CERT)4. Assoc. Prof. Dr. Pongpisit Wuttidittachotti, Head of Department of Digital

Thailand (SET). The first hearing conducted earlier in the month of June attracted various, useful comments from organizations and stakeholders, which has led to revision to certain provisions in the key

which exceed 20% To : The President The Stock Exchange of Thailand Bangkok Chain Hospital Public Company Limited (the “Company”) would like to report the operating results for year ended 31 December 2018