., Nongeiroon, Banbueng, Chonburi, Thailand 20220 Tel. 038-160707 Fax. 033-047348 www.ndrubber.co.th No. NDR003/2019 22 February 2019 Subject: Management Discussion and Analysis (MD&A) Report for the Year 2018

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

summary of the Company’s operating performance in the second quarter of 2017 and 2016 is shown in the following table: 2Q17 1Q17 %Change 2Q16 %Change [Amount: in Baht Million] Q-o-Q Y-o-Y [2Q17 VS. 1Q17

. A summary of the Company’s operating performance in the third quarter of 2017 and 2016 is shown in the following table: 3Q17 2Q17 %Change 3Q16 %Change [Amount: in Baht Million] Q-o-Q Y-o-Y [3Q17 VS

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

15 May 2018 Subject: Management Discussion and Analysis for the 3-Month Period Ended March 31, 2018 To: Directors and Managers The Stock Exchange of Thailand Halcyon Technology Public Company Limited

754.5 596.1 26.6% 2,179.4 1,798.8 21.2%   Management Discussion and Analysis, Q3/2018 Page 2/5 Jaymart Public Company Limited Q3/2018 Q3/2017 Change 9M/2018 9M/2017 Change MB MB % MB MB % Sales promotion

วันที่ 15 ตุลาคม 2545 1 NO. (SUTHA-SET) 003/2019/EN 26 February 2019 Subject: Management Discussion and Analysis of the Company and its subsidiary for the year ended 31 December 2018 To: The

PowerPoint Presentation THE INNOVATIVE POWER FLAGSHIP OF PTT GROUP MANAGEMENT DISCUSSION & ANALYSIS (MD&A) Q1/2018 GLOBAL POWER SYNERGY PUBLIC COMPANY LIMITED Management Discussion & Analysis

Company’s operating performance in 2017 and 2016 is shown in the following table: FY2017 FY2016 % Change FY2015 % Change [Amount in Baht Million] Y-o-Y Y-o-Y [2017 VS. 2016] [2016 VS. 2015] Sales Revenue