1/3 REF: SET-2018-018 November 14, 2018 Subject Report of the Resolutions of Board of Directors’ Meeting No. 4/2018 To President The Stock Exchange of Thailand Filter Vision Public Company Limited

regarding the Acquisition and Disposition of Assets of the Company (Revised) Attention: President, The Stock Exchange of Thailand According to the resolution of the Board of Director’s Meeting No. 8/2019 of

size of the transaction, the value is more than 3% of net tangible assets or more than 20 million baht. Thus the company has to disclose information regarding the transaction of the Company to the Stock

., and Schedule for the EGM of Shareholders No. 1/2019 (Revised3) To: The President The Stock Exchange of Thailand Enclosure: 1. Information Memorandum of Hydrotek Public Company Limited on Disposal of

., Ltd and appointment of member of audit committee. (Revised) To: President The Stock Exchange of Thailand Enclosure: Information Memorandum regarding the Acquisition of Asset of Demeter Corporation

together with THB 115M gain on conversion option embedded in convertible bond. According to TFRS 9, all derivative instruments must be mark-to-market to be recorded at its fair value and any changes in fair

Connected Transaction and the Scheduling of the Extraordinary General Meeting of Shareholders No. 1/2019 Attention : The President of the Stock Exchange of Thailand Enclosure : Information Memorandum on

-9320 1 Ref: PLC.2020/005 March 9, 2020 Subject : Dividend payment and the connected transaction and schedule of the 2020 Annual General Meeting of Shareholders To : President, The Stock Exchange of

M.D.137 / 2019 June 26, 2019 Subject : Information on Connected Transactions Dear : President of the Stock Exchange of Thailand Kang Yong Electric Public Company Limited, hereby informs you the

years, Chiang Mai has had 2 approved companies proving the sale of their stock to the public: Initial Public Offering (IPO), with a total of fund-raising value for over 900 million Thai baht. This