หัวข้อ (Translation) No. Tor.For 6/2018 January 26, 2018 Subject: Transactions with the connected persons and Appointment of the Company’s Executives (Amendment) To: The President of the Stock

investment by country and instruments / and compliance with the law and the rules and regulations. Information on the supervision of ThaiBMA: Directors, executives of the company, and the contact persons of

Market Supervisory Board and the Notification of the Office of the Securities and Exchange Commission concerning the Rules on Operating a Derivatives Exchange; (3) having directors and executives with

. (66)2-9063242-50 e-mail: info@halcyon.co.th No. CS-2563/002 27 February 2020 Subject: Resolution of the Board of Directors’ Meeting No.1/2020 Attention: Directors and Managers, The Stock Exchange of

@halcyon.co.th No. CS-2563/003 27 February 2020 Subject: Management Discussion and Analysis for the Year Ended December 31, 2019 To: Directors and Managers The Stock Exchange of Thailand Halcyon Technology Public

14 August 2019 Subject: Management Discussion and Analysis for the 6-Month Period Ended June 30, 2019 To: Directors and Managers The Stock Exchange of Thailand Halcyon Technology Public Company

investment; 4.2) be able to demonstrate that persons who are or will become shareholders, directors, managers or persons with management authority in the ICO portal do not have any prohibited characteristics

13 November 2019 Subject : Explanation of the operating results for the nine months of the year 2019, change in excess of 20% Attention: Directors and Managers the Stock Exchange of Thailand According

14 November 2019 Subject: Management Discussion and Analysis for the 9-Month Period Ended September 30, 2019 To: Directors and Managers The Stock Exchange of Thailand Halcyon Technology Public

@halcyon.co.th No. CS-2563/013 14 August 2020 Subject: Management Discussion and Analysis for the 3-Month Period Ended 31 March 2020 To: Directors and Managers The Stock Exchange of Thailand Halcyon Technology