General Meeting of Shareholders, Dividend Payment and Connected Transaction Attn: President, the Stock Exchange of Thailand The Board of Directors Meeting of Vinythai Public Company Limited No. 1/2018, held

the Year as at 31 December 2018 To The President The Stock Exchange of Thailand We, ZEN Corporation Group Public Company Limited (“the Group”), are please to inform you our management discussion and

Ref.No.1905/026EN July 16, 2019 Subject Inform about The Connected Transaction (Amendment) Attention President of the Stock Exchange of Thailand According to the Board of Directors Meeting No.9/2019

Managing Director of Accounting and Finance, and the disposition of land of the Company’s subsidiary To President The Stock Exchange of Thailand K.C. Property Public Company Limited (the “Company”) would

Entering into the Connected Transaction Attention : The President of the Stock Exchange of Thailand Enclosure : Information Memorandum on Connected Transaction Jasmine Telecom Systems Public Company Limited

No.: PACE-L 36/2018 Date: 21 December 2018 Subject: Disclosure on Connected Transaction Regarding Providing Financial Assistance (Additional Information) Attention: President The Stock Exchange of

ชัน้ 11 หอ้ง 1105 ถนนรัชดาภเิษก คลองเตย กรงุเทพฯ 10110 โทร. 02-229-2355 โทรสาร 02-654-5034 อเีมล ์info@saa-thai.org www.saa-thai.org Securities Analysts Association The Stock Exchange of Thailand

the shareholding in subsidiary companies To: President The Stock Exchange of Thailand Attachment: Structure of the shareholding in subsidiary companies Filter Vision Public Company Limited (“the Company

investment on assets (Revision 2) Attention: Directors and Managers The Stock Exchange of Thailand Attachment: 1. Information on the investment on assets 2. F53-4 form 3. Details on the issuance of warrants to

with factory building and the Machinery purchase agreement (Additional) Attention President of the Stock Exchange of Thailand According to the Board of Directors Meeting No.10/2020 of UBIS (Asia) Public