Discussion and Analysis for 1st quarter ended as of March 31, 2017 (Revised 2) Attention: President The Stock Exchange of Thailand AI Energy Public Company Limited (AIE) would like to submit the company and

(Translation) th August, Ref: SET-- Re: Management's Discussion and Analysis and Operating Results for Quarter / Dear: The President The Stock Exchange of Thailand Filter Vision Public Company

-1- AIT (VP-SEC) 033E/2020 November 10, 2020 Subject: Management's Discussion and Analysis of Operating Results for Q3–2020 To: The President of The Stock Exchange of Thailand Summary of Operations

Quarter of 2019 and 6-months period ending 30 June 2019 To The President The Stock Exchange of Thailand We, ZEN Corporation Group Public Company Limited (“the Group”), are pleased to provide you our

May 15, 2020 Ref: SET-2020-010 Re: Management Discussion and Analysis for Quarter 1’ 2020 Attn. to: President The Stock Exchange of Thailand Filter Vision Public Company Limited and its subsidiaries

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

Meeting of Shareholders No. 1/2018 (Amendment No.1) To The President The Stock Exchange of Thailand Attachment 1. Information Memorandum regarding the Offering and Allocation of the Newly Issued Shares of

2nd quarter of 2020 and 6-month period ended 30 June 2020 To The President The Stock Exchange of Thailand We, Zen Corporation Group Public Company Limited (“the Group”), are pleased to provide you our

interest in the matter; and (3) appoint an independent financial advisor (IFA) to give an opinion on the acquisition transaction and submit such opinion to the Office of the Securities and Exchange

the end of 2019 stood at 2.91%, lower than 3.31% in 2018. Fixed interest rates debt comprises 56% of total interest-bearing debt whilst floating interest rates make up the remaining 44%. Net interest