* Note Please find further information in the consolidated financial statements. 1 21 February, 2019 Subject: Management Discussion & Analysis (MD&A) for the year 2018 Attention: The President The

Thailand Attachment: 1. Information Memorandum on Acquisition of Assets The Board of Directors’ Meeting of Halcyon Technology Public Company Limited No. 1/2020 held on February 26, 2020 passed the important

Stock Exchange of Thailand Re: Disclosure of information and other acts of listed companies concerning the Connected Transaction B.E.2003. 2 4. Characteristics of the transaction J.S.P. Property Public

-Translation- Ref. IR 62/005 March 13, 2019 Subject: transaction yDisclosure of the information regarding related part To : President, The Stock Exchange of Thailand T.K.S. Technologies Public

ที่มป - Translation - Ref : JKNGB-004-05/2018 May 11, 2018 Re: Information Memorandum on Connected Transaction on Office Space Lease Attn.: President The Stock Exchange of Thailand Enclosure

. The details are as follows; Operating Performance 1. Revenues Units: Million Information of the 3rd Quarter Consolidated Separate 3 months Change 3 months Change 2018 2017 Amount Percentage 2018 2017

NEP 045-2562 12 September 2019 Subject: The Sale of the machines to connected person (Add Information) To: President The Stock Exchange of Thailand The resolution of the Board of Directors’ Meeting

Machines for the Debenture Debt repayment To: President The Stock Exchange of Thailand Enclosure: Information Memorandum on the Asset Disposal, Schedule 1 of Rich Asia Corporation Public Company Limited

M.D. 042/2020 February 12, 2020 Subject : Disclosure of the information connected transactions To : President of the Stock of Exchange of Thailand Kang Yong Electric Public Company Limited hereby

M.D. 042/2020 February 12, 2020 Subject : Disclosure of the information connected transactions (Revised) To : President of the Stock of Exchange of Thailand Kang Yong Electric Public Company Limited