10 November 2017 Subject: Management Discussion & Analysis for 3th quarter ending 30 September 2017 (Rev1) To: The President The Stock Exchange of Thailand Harn Engineering Solutions Public Company

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

million, an increase loss of 312%. The Company would like to clarify a significance change of the Group’s operating results were summarized as follows: 1. Revenue from sales and services for the nine-month

healthcare and esthetics, which gives importance on Hygienic Medical Service with Knowledge Base Management by Sterilized Sanitation as same as Kidney Dialysis of Dialysate Unit, which is one of the core

for healthcare and esthetics, which gives importance on Hygienic Medical Service with Knowledge Base Management by Sterilized Sanitation as same as Kidney Dialysis of Dialysate Unit, which is one of the

/2018 February 15 , 2018 Re: Management Discussion and Analysis (MD&A) For Year 2017 Attn: President The Stock Exchange of Thailand Baan Rock Garden Public Company Limited wishes to clarify the Company’s

หน้า 1 จาก 1 PAP_SET18004 Translation February 22, 2018 Subject: Management explanation and analysis for Year ended 31 December 2017 Attn: The Managing Director, the Stock Exchange of Thailand

จดหมายชี้แจงปี60e February 22, 2018 The Managing Director The Stock Exchange of Thailand Subject : Management Discussion and Analysis Ending 31 December 2017 Summary of operating result between 2017

May 10, 2019 Re : Management Discussion and Analysis (MD&A) For Quarter 1 / 2019 Attn : President The Stock Exchange of Thailand Baan Rock Garden Public Company Limited wishes to clarify the Company’s

May 15, 2019 Subject : Management Discussion and Analysis for quarter ended March 31, 2019 Attention : President The Stock Exchange of Thailand 1. Operating Performance 1.1 Revenues Consolidated