No. B52-2020-05/002 7 May 2020 Subject: Management Discussion and Analysis - for the three-month period ended 31 March 2020 To: The President of Stock Exchange of Thailand B-52 Capital Public Company

@halcyon.co.th No. CS-2563/014 14 August 2020 Subject: Management Discussion and Analysis for the 6-Month Period Ended 30 June 2020 To: Directors and Managers The Stock Exchange of Thailand Halcyon Technology

ended as of September 30, 2021, which can be summarized as follows: 1) Profit & Loss Analysis : Q3 2021 (3 Months) (Unit : Million Baht unless otherwise stated) Q3 2021 Q3 2020 Change Amount % Change

Management Discussion and Analysis, for the three-month period ended March 31, 2018 The analysis of operating result for the three-month period ended March 31, 2018 Comparing accumulated operating

% Allowance (reversal of allowance) for impairment of assets 5.6 0.8% -3.6 0.0% -9.2 -163.6%   JAS Asset’s Management Discussion and Analysis for FS2018 Page2/5 2017 2018 Change MB % MB % MB % Profit before

วันที่ 15 ตุลาคม 2545 1 NO. (SUTHA-SET) 002/2020/EN 26 February 2020 Subject: Management Discussion and Analysis of the Company and its subsidiary for the year ended 31 December 2019 To: The

ที่บชง Page 1 of 4 Ref. Bor Chor Ngor 0154 /2018 10 May 2018 Subject: Management Discussion and Analysis for the First Quarter ended 31 March 2018 To President The Stock Exchange of Thailand Quality

ที่บชง Page 1 of 4 Ref. Bor Chor Ngor 0048/2020 26 February 2020 Subject: Management Discussion and Analysis of Operating Results for Fiscal Year 2019 To President The Stock Exchange of Thailand

ที่บชง Page 1 of 4 Ref. Bor Chor Ngor 0280/2019 13 August 2019 Subject: Management Discussion and Analysis for the Second Quarter ended 30 June 2019 To President The Stock Exchange of Thailand

ที่บชง Page 1 of 4 Ref. Bor Chor Ngor 0140 /2020 13 May 2020 Subject: Management Discussion and Analysis for the First Quarter ended 31 March 2020 To President The Stock Exchange of Thailand Quality