26 February 2019 Subject: Management Discussion and Analysis for the Year Ended December 31, 2018 To: Directors and Managers The Stock Exchange of Thailand Halcyon Technology Public Company Limited

February 28, 2020 Subject: Managing Discussion and Analysis for Year2019 To: Managing Director The Stock Exchange of Thailand The company would like to report to operation results for the company and

15, 2017 Subject: MD&A for the financial statements of the 1st quarter of fiscal year 2017 ended as of March 31, 2017 To: The President The Stock Exchange of Thailand Aapico Hitech Public Company

วันที่ 25 กุมภาพันธ์ 2558 February 23, 2018 Subject: Management’s Discussion and Analysis for the year ended December 31, 2017 Attention: Director and Manager The Stock Exchange of Thailand LDC

วันที่ 14 สิงหาคม 2550 DEMCO Public Company Limited No. Demco AC001/2019 February 28, 2019 Subject : The company’s operating result of the year 2018 To : The president, The Stock Exchange of Thailand

February 28, 2019 Subject: Managing Discussion and Analysis for Year2018 To: Managing Director The Stock Exchange of Thailand The company would like to report to operation results for the company and

SBN 007/2019 May 14, 2019 Subject : Operating Result for the first quarter of 2019 To : The Managing Director, The Stock Exchange of Thailand Sabina Public Co.,Ltd. Would like to clarify the

วันที่ 14 สิงหาคม 2550 DEMCO Public Company Limited No. Demco AC002/2019 May 14, 2019 Subject : The company’s operating result for the 1st quarter of year 2019 To : The president, The Stock Exchange

วันที่ 14 สิงหาคม 2550 DEMCO Public Company Limited No. Demco AC003/2019 August 14, 2019 Subject : The company’s operating result for the 2nd quarter of year 2019 To : The president, The Stock

วันที่ 25 กุมภาพันธ์ 2558 May 11, 2018 Subject: Management’s Discussion and Analysis for the 3 months period ended March 31, 2018 Attention: Director and Manager The Stock Exchange of Thailand LDC