Management Discussion and Analysis for the first quarter ended March 31, 2019 Attention The President The Stock Exchange of Thailand Attachment Report and interim financial statement for the first quarter

: 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 the first

RP-AC 002/2019 May 14, 2019 Subject Clarification of the operating results for the first quarter of 2019 To Directors and Managers of the Stock Exchange of Thailand Richy Place 2002 Public Company

349 SJ Infinite I Business Complex, Unit 1507, 15th Floor, Vibhavadi-Rangsit Road, Chompol, Chatuchak, Bangkok, 10900 Tel. 02 075 5667-8 Fax. 02 075 5669 Website: www.eicasia.net (Translation) Ref

30 July 2019 To: The President The Stock Exchange of Thailand Re: Q2-2019 operating results We, Delta Electronics (Thailand) Public Company Ltd, would like to notify the Company’s Q2-2019 (Apr-Jun

: 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 (collectively as

analysis for the three-month period ended June 30, 2019 To: Director and Manager of the Stock Exchange of Thailand Referring to the submission of reviewed financial statements for quarter 2/2019 of Wiik

results for the six-month period of 2019, change of rate more than 20 percent Dear Director and Manager The Stock Exchange of Thailand According to the resolution of the Board of Directors of DOD Biotech

and analysis for the period ended March 31, 2018 To Director and Manager of the Stock Exchange of Thailand Referring to the submission of the reviewed financial statements for quarter 1/2018 of Wiik

Discussion and Analysis for the quarter 1 year 2018 To The President of the Stock Exchange of Thailand Management’s Discussion and Analysis Consolidated Financial Results for the quarter 1 year 2018 For the