., and Schedule for the EGM of Shareholders No. 1/2019 (Revised3) To: The President The Stock Exchange of Thailand Enclosure: 1. Information Memorandum of Hydrotek Public Company Limited on Disposal of

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% 227 EBITDA Margin (%) 8.9% 4.7% 4.1% -4.9% -0.6% 9.1% 5.3% -3.8% 1.3% Net Profit 204 71 55 -73% -23% 795 270 -66% 937 EPS (Baht/Share) 0.28 0.07 0.05 -81% -23% 1.07 0.30 -72% (1.42) Stock Gain/(Loss

Ref. DBP. 068 / 2018 May 14, 2018 Subject : Clarification on operating results for the 1st Quarter ending March 31, 2018 To : President The Stock Exchange of Thailand Diamond Building Products Public

ที่ FPI Ref. FPI.001/2020 25 February 2020 Subject : Management Discussion & Analysis of Performance Results of the year ended 2019 To : Board of Directors and President of The Stock Exchange of

2017 To : Directors and Manager The Stock Exchange of Thailand According to the resolution of the meeting of the Board of Directors No.8/2017 of Wattanapat Hospital Trang Public Company Limited (“the

ที่ FPI Ref. FPI.006/2019 14 August 2019 Subject : Management Discussion & Analysis of Performance Results of Quarter 2/2019 To : Board of Directors and President of The Stock Exchange of Thailand

ที่ FPI Ref. FPI.007/2019 14 August 2019 Subject : Management Discussion & Analysis of Performance Results of Quarter 2/2019 (edit) To : Board of Directors and President of The Stock Exchange of

/2561 August 7, 2018 Subject: Management’s discussion and analysis of the Company’s operating results for Q2/2018 period To: President The Stock Exchange of Thailand DOD Biotech Public Company Limited

Company Limited Attention: President The Stock Exchange of Thailand The Meeting of the Board of Directors of KGI Securities (Thailand) Public Company Limited (“the Company”) No. 5/2018 held on 23rd August