No. INGRS046 30 April 2020 Subject : Explanation on the financial performance of INGRS for the financial year ended 31 January 2020 To : The President The Stock Exchange of Thailand Ingress

- Translation - Ref : LPH/SET 2020/009 May 13, 2020 Subject : Clarification on the Operating Results for the three-month period ended March 31, 2020 (Q1/2020) To : President The Stock Exchange of

MATI 07/2563 May 14, 2020 Subject Reporting First Quarter Consolidated Financial Statement which ended at March 31, 2020 To Director and Manager The Stock Exchange of Thailand For three-month period

 Bangkok, October 13, 2014 ? The SEC allows allotment of newly issued shares in an IPO to related persons of issuing companies up to 25 per cent of total number of shares offered.  For offering of

revision specifies that retail investors and investment management organizations for individual investors must collectively hold at least 50 percent of the total investment units sold, and at least 25

., Ltd. To: President The Stock Exchange of Thailand Enclosure: Information Memorandum regarding the Acquisition of Asset of Demeter Corporation Public Company Limited The Meeting of the Board of Directors

@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

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

Company’s land (additional disclosure) To: The President The Stock Exchange of Thailand The Board of directors meeting # 8/2019 held on June 4, 2019 has a resolution to sell a piece of land to increase

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