(Translation) February 27, 2019 Ref: SET-2019-003 Re: Management's Discussion and Analysis and operating results for the Year 2018 Attn. to: President The Stock Exchange of Thailand Filter Vision

% yoy) because EBITDA from FA business was lower due to stock loss as CPKO price drop. Moreover, the company recognized profit of THB 20 million from investments in the Thai Ethoxylate Company Limited

1 Ref: AC.008/2020 25 February 2020 Subject: Management discussion and analysis of financial position and operating results To: President and Manager The Stock Exchange of Thailand Overall operating

AIT (SVP-SEC) 015E/2016 May 9, 2017 Subject: Management's Discussion and Analysis of Operating Results for Q-2016 To: The President of The Stock Exchange of Thailand Summary of Operations Q1- 2016

: President of the Stock Exchange of Thailand Ua Withya Public Company Limited ("Company") would like to describe and analyze the financial position and operating results for quarter 2-2017 are summarized as

: 0107556000248 No. (SUTHA-SET) 030/2017/Eng 10 November 2017 Subject: Management Discussion and Analysis for period ended 30 September 2017 To: The President of the Stock Exchange of Thailand Attachment

S&P MD&A Q3-2017 -1- Ref. POL. 136/2017 November 13, 2017 Re: Clarification of the Performance of S & P Syndicate Public Company Limited Dear The President The Stock Exchange of Thailand S & P

S&P MD&A YE2018-ENG -1- Ref. POL. 029/2019 February 27, 2019 Re: Clarification of the Performance of S & P Syndicate Public Company Limited Dear The President The Stock Exchange of Thailand S & P

1 Ref: AC.016/2019 4 May 2019 Subject: Management discussion and analysis of financial position and operating results To: President and Manager The Stock Exchange of Thailand Overall operating

MD&A Eng Q1-19 13-5-19 _1_ 1 Translation UWC 014-2019 May 14, 2019 Subject : Management Discussion and Analysis for quarter 1-2019 To : President of the Stock Exchange of Thailand Ua Withya Public