-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

Transaction Rules dated 31 August 2008 (as amended) and Notification of the Board Governors of Stock Exchange of Thailand Re: Disclosure of Information and Other Acts of Listed Companies Concerning Connected

Supervisory Board Tor Jor. 21/2551 Re: Connected Transaction Rules dated 31 August 2008 (as amended) and Notification of the Board Governors of Stock Exchange of Thailand Re: Disclosure of Information and Other

segments: 1. Digital content via telecommunication channels 2. Information technology solutions for electronic devices 3. Online advertising for products and services. The details of Services income and Cost