(Translation) NEP-AC 001/2561 10 May 2018 Subject : Management Discussion and Analysis for 1st Quarter ended March 31, 2018 To : The President The Stock Exchange of Thailand Operating Result NEP

Ref. No. 1902-009EN February 21, 2019 Subject: Operating Result Clarification for the year 2018 (Ending December 31, 2018) To: Director and Manager of the Stock Exchange of Thailand Ubis (Asia

Palmer & Turner (Thailand) Ltd MJD.IR.002/2563 25 February 2020 Subject : Clarification of the operating result for the year 2019 ended December 31, 2019 To : Director and Manager The Stock Exchange

Director and Manager of the Stock Exchange of Thailand Ubis (Asia) Public Company Limited (“the Company”) would like to clarify on the performance and the financial status which had changed over 20 percent

Translation CEN 003-2018 February 23, 2018 Subject : Management Discussion and Analysis for business operation of year 2017 To : The Manager and President The Stock Exchange of Thailand Business

: President The Stock Exchange of Thailand CH. Karnchang Public Company Limited (“the Company”) and its subsidiaries would like to clarify the consolidated operating result and financial position for the year

Palmer & Turner (Thailand) Ltd MJD.IR.009/2562 14 May 2019 Subject : Clarification of the operating result for the year 2019 ended March 31, 2019 To : Director and Manager The Stock Exchange of

million resulted from the Company had drawdown a short-term loan for purpose of increasing working capital commencing in 1st Quarter 2019.  Gain from exchange rate The Company had recorded gain from

1 Translation CEN 012-2019 May 14, 2019 Subject Management discussion and analysis for business operation Quarter 1-2019 To The Manager and President The Stock Exchange of Thailand For 3 months

: 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