: Clarification for the three month period ended June 30, 2017 operating results. To Director and Manager of the Stock Exchange of Thailand Referring to the submission of the reviewed financial statements for

Palmer & Turner (Thailand) Ltd MJD.IR.026/2017 15 August 2017 Subject : Clarification of the operating result for the year 2017 ended June 30, 2017 To : Secretary – General of the Securities and

Palmer & Turner (Thailand) Ltd MJD.IR.029/2017 13 November 2017 Subject : Clarification of the operating result for the year 2017 ended September 30, 2017 To : Director and Manager The Stock Exchange

Discussion and Analysis Quarter 3 Ended 30 Sep 2017 To The President of the Stock Exchange of Thailand Management’s Discussion and Analysis Consolidated Financial Results for the three-month and the nine-month

15 November 2017 Subject: Management Discussion and Analysis for the 9-Month Period Ended September 30, 2017 To: Directors and Managers The Stock Exchange of Thailand Halcyon Technology Public

26 February 2018 Subject: Management Discussion and Analysis for the Year Ended December 31, 2017 To: Directors and Managers The Stock Exchange of Thailand Halcyon Technology Public Company Limited

(RICHY) would like to clarify the company and the subsidiaries operating results for the year ended December 31,2017 as follows: Profit and Loss of the year ended 2017 Unit: Million Baht Profit and Loss

หนังสือแสดงการรับทราบความผิด 28 February 2018 Subject : Management Discussion and Analysis of the year ended 31 December 2017 Attn. : Director and Manager The Stock Exchange of Thailand Encls. : A

) February 27, 2019 Re : Report the operating result for the year ended December 31 ,2018 by more than 20 percent. To : Director and Manager the Stock Exchange of Thailand According to the resolution of the

Palmer & Turner (Thailand) Ltd MJD.IR.003/2562 28 February 2019 Subject : Clarification of the operating result for the year 2018 ended December 31, 2018 To : Director and Manager The Stock Exchange