Public Company Limited ( “ the Company” ) would like to clarify the operating results of the Company and its subsidiary for the 3rd quarter ended September 30, 2019 which has been audited by the

Management Discussion and Analysis for Interim Business Operation Financial Performance for the year ended Sebtember 30, 2019 (Unit : Millon Bath) 2019 2019 Inc/(Dec) % Construction income 23.88

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

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

Public Company Limited (“the Company”) would like to clarify the operating results of the Company and its subsidiary for the 2nd quarter ended June 30, 2020 which has been audited by the independent

1 Ref: CK-20-0000-AFD(AC)-L-0042 August 14, 2020 Subject: Clarification on Operating Result and Financial Position for the six-month period ended June 30, 2020 Attention: President The Stock Exchange

Company Limited (“the Company”) would like to clarify the operating results of the Company and its subsidiary for the first quarter ended March 31, 2020 which has been audited by the independent auditor as

Page 1 of 3 GEL.CS.006/2563 15 May 2020 Subject: Management Discussion and Financial Analysis for the operating results of the first quarter of 2020, ended March 31, 2020 To: Director and Manager The

(“Company”) would like to notify the operating result stated in consolidated financial statements for the second Quarter period ended June 30, 2020 compared with the same period of 2019. For the operating

company certificate dated June 18, 2020). The company has sent a letter to professional and consulting in order to provide evidence of their performance Business operation as ended June 30, 2020 of Dimet