Quarter of 2019 and 6-months period ending 30 June 2019 To The President The Stock Exchange of Thailand We, ZEN Corporation Group Public Company Limited (“the Group”), are pleased to provide you our

1 Ref: AC.021/2018 14 August 2018 Subject: Management discussion and analysis of financial position and operating results To: President and Manager The Stock Exchange of Thailand Overall operating

1 Ref: AC.028/2018 13 November 2018 Subject: Management discussion and analysis of financial position and operating results To: President and Manager The Stock Exchange of Thailand Overall operating

processes throughout the Company. 4. Financial Position of the Company and its Subsidiaries Unit : Million Baht 31/3/2020 31/12/2019 % change Cash and cash equivalents 100 119 (16%) Account receivables 828

June 30, 2020 To The President The Stock Exchange of Thailand Management’s Discussion and Analysis Consolidated Financial Statements For six months ended June 30, 2020 Overall Group Performance Table 1

27 October 2020 At: ACC/HO 019/63 Re: Management Discussion and Analysis for the Quarter of 3/2020 To: President The Stock Exchange of Thailand During the third quarter of 2020 the Coronavirus 2019

May 15, 2020 Ref: SET-2020-010 Re: Management Discussion and Analysis for Quarter 1’ 2020 Attn. to: President The Stock Exchange of Thailand Filter Vision Public Company Limited and its subsidiaries

Limited Ref: IR61/012 14 May 2018 Subject: Management Discussion and Analysis Quarter 1/2018 Ending 31 Mar 2018 To: President The Stock Exchange of Thailand Overview and factors affecting the future

Limited Ref: IR61/012 11 May 2018 Subject: Management Discussion and Analysis Quarter 1/2018 Ending 31 Mar 2018 To: President The Stock Exchange of Thailand Overview and factors affecting the future

December 2019 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 2019 which