-1- AIT (VP-SEC) 013E/2018 May 8, 2018 Subject: Management's Discussion and Analysis of Operating Results for Q1-2018 To: The President of The Stock Exchange of Thailand Summary of Operations Q3

of Thailand Rajthanee Hospital Public Company Limited ( “the Company”) would like to clarify the operating results of the Company and its subsidiaries for the year ended December 31, 2018 which has

December 31, 2019 To The President The Stock Exchange of Thailand Management’s Discussion and Analysis Consolidated Financial Statements For Year Ended December 31, 2019 Overall Group Performance Table 1

Thailand According to the resolution of the Board of Directors Meeting of JAS Asset Public Company Limited ("the Company") No. 1/2020, held on 25 February 2020, had approved the audited financial statements

Ref. AU 009/2017 - Translation - 15 May 2017 To: Director and the President The Stock Exchange of Thailand Management Discussion and Analysis for the three-month period ended 31 March 2017 After You

ที่ บช NO. AC. 004/2017 13 November 2017 Subject: Clarification of changes in operating performance of more than 20% To: The President of the Stock Exchange of Thailand M.K. Real Estate Development

1 (Translation) MD. 045/2019 February 27, 2019 Re: Management Discussion and Analysis For the Year Ended December 31, 2018 To: President The Stock Exchange of Thailand Management Discussion and

S&P MD&A YE2018-ENG -1- Ref. POL. 029/2019 February 27, 2019 Re: Clarification of the Performance of S & P Syndicate Public Company Limited Dear The President The Stock Exchange of Thailand S & P

1 (Translation) MD. 045/2019 27 February 27, 2019 Re: Management Discussion and Analysis For the Year Ended December 31, 2018 To: President The Stock Exchange of Thailand Management Discussion and

Stock Exchange of Thailand K. W. Metal Work Public Company Limited (the “Company”) would like to submit management discussion and analysis for the three month-period ended March 31, 2019 with details as