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

Microsoft Word - MDA Q119 EN May 8, 2019 To President The Stock Exchange of Thailand Subject Notification on the difference of revenue from sales and net profit YOY by more than 20 percent Taokaenoi

No. CC20190804ELE August 13, 2019 Re: Clarification of the changes in operation performance for the second quarter and the first half ended 30 June, 2019 Attn: The President The Stock Exchange of

15 May 2018 Subject: Management Discussion and Analysis for the 3-Month Period Ended March 31, 2018 To: Directors and Managers The Stock Exchange of Thailand Halcyon Technology Public Company Limited

24 July 2018 To: The President The Stock Exchange of Thailand Re: Q2-2018 operating results We, Delta Electronics (Thailand) Public Company Ltd, would like to notify the Company’s Q2-2018 (Apr-Jun

14 August 2018 Subject: Management Discussion and Analysis for the Six-Month Period Ended June 30, 2018 To: Directors and Managers The Stock Exchange of Thailand Halcyon Technology Public Company

No. CC20181103ELE November 12, 2018 Re: Clarification of the changes in operation performance for the third quarter and the nine- month period ended 30 September 2018 Attn: The President The Stock

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 of the Company and its subsidiaries for

14 November 2018 Subject: Management Discussion and Analysis for the Nine-Month Period Ended September 30, 2018 To: Directors and Managers The Stock Exchange of Thailand Halcyon Technology Public

Ref. 66/2018 November 27, 2018 Subject : Waiver of rights to purchase ordinary shares of Dhipaya Bodin Co., Ltd. To : Director and Manager The Stock Exchange of Thailand The Board of Directors