Baht 821.6 million or 11.2 % by the following revenue structure: Unit: Million Baht Revenue Structure 2018 2017 Change General Patient Revenue 5,388.0 4,517.6 870.4 19.3% Social Security Scheme Revenue

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

@halcyon.co.th No. CS-2563/014 14 August 2020 Subject: Management Discussion and Analysis for the 6-Month Period Ended 30 June 2020 To: Directors and Managers The Stock Exchange of Thailand Halcyon Technology

Thailand N.D. Rubber Public Company Limited (“The Company”) would like to inform Management Discussion and Analysis for Q2/2017 as follows: For Q2/2017, The Company revenue was 204.10 Million Baht represents

million, we wish to clarify the changes in our operating results as follows: ‐ Sales Revenue was increased by Baht 18.30 million or 8.71% compared the same period of prior year. Export Sales Revenue was

Page 1 No. CMC Sor Lor.009/2019 May 14, 2019 Re: Management Discussion & Analysis for the Period Ended 31 March 2019 To The President of the Stock Exchange of Thailand (SET) CHAOPRAYAMAHANAKORN

Page 1 No. CMC Sor Lor.012/2019 August 13, 2019 Re: Management Discussion & Analysis for the Period Ended 30 June 2019 To The President of the Stock Exchange of Thailand (SET) CHAOPRAYAMAHANAKORN

27 February 2019 Subject :Management discussion and analysis of financial statement for the year 2018, ended December 31, 2018 Attention :Director and Manager The Stock Exchange of Thailand The

million or 31.37% compared to the same period of last year of Baht 14.63 million, we wish to clarify the changes in our operating results as follows: ‐ Sales Revenue was increased by Baht 5.30 million or

14 November 2018 Subject :Management discussion and analysis of financial statement for three-month period ended 30 September 2018 Attention :Director and Manager The Stock Exchange of Thailand The