August 14, 2019 Ref: SET-2019-010 Re: Management Discussion and Analysis for Quarter 2’ 2019 Attn. to: President The Stock Exchange of Thailand Filter Vision Public Company Limited and its

were calculated based on The Stock Exchange of Thailand’s formula. MANAGEMENT OUTLOOK This year, VGI celebrates our 20th anniversary unveiling a new vision: “Pioneering Solutions for Tomorrow”. We have

% Share premium 6 6 0.0% Retained earnings 628 829 (24%) Other components of equity 225 189 19.1% Deduct: Treasury stock (114) (114) 0.0% Total equity of parent Company's shareholders 885 1,049 (16%) Non

29 July 2020 At: ACC/HO 014/63 Re: Management Discussion and Analysis for the Quarter of 2/2020 To: President The Stock Exchange of Thailand The Coronavirus 2019 (COVID-19) pandemic has had a

Quarter of 2020 To The President The Stock Exchange of Thailand We, ZEN Corporation Group Public Company Limited (“the Group”), are pleased to provide you our management discussion and analysis for the 1st

purchasing power in the coming quarter. Nevertheless, the business sector may recover within 3 – 6 months after the situation improves. 3. WATER SITUATION As of 1 May 2020, the water supply situation in

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

-1- AIT (VP-SEC) 005E/2022 21 February 2022 Subject: Management's Discussion and Analysis of Operating Results for the year 2020 and Q4-2020 To: The President of the Stock Exchange of Thailand

-1- AIT (VP-SEC) 005E/2022 21 February 2022 Subject: Management's Discussion and Analysis of Operating Results for the year 2021 and Q4-2021 To: The President of the Stock Exchange of Thailand

power is not influenced by the related person; (3) in cases where the mutual fund’s utilization of any assets of an infrastructure business is considered to be a transaction with a related person