which operate in February 10, 2018 (last year has expense from registering the company only), In addition, the Group have adjusted employee and management remuneration as usual every year. As a result

AIM 1 Ref.: EFORL039/2017 November 14, 2017 Subject: Management Discussion and Analysis for the third quarter of 2017 (Q3/2017) and for nine month periods ended September 30, 2017 To President The

, 2017. Please be informed accordingly. Sincerely yours, T.K.S. Technologies Public Company Limited (Mr. Somkid Wekinvattanased) Managing Director 1 Disclaimer: The English translation of this document is

Extraordinary General Meeting No. 1/2018 (Record Date) on December 27, 2017. Please be informed accordingly. Sincerely yours, T.K.S. Technologies Public Company Limited (Mr. Somkid Wekinvattanased) Managing

accordingly. Sincerely yours, T.K.S. Technologies Public Company Limited (Mr. Somkid Wekinvattanased) Managing Director 1 Disclaimer: The English translation of this document is prepared solely for reference

1 Translation UWC 006/2019 February 26, 2019 Subject : Management Discussion and Analysis for year 2018 To : President of the Stock Exchange of Thailand Ua Withya Public Company Limited ("Company

February 28, 2020 Ref: SET-2020-003 Re: Management Discussion and Analysis for the year 2019 Attn. to: President The Stock Exchange of Thailand Filter Vision Public Company Limited and its

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

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

this transaction is reasonable and beneficial to the business processes of both companies in consider to optimize capital management and minimize financial cost. The risk of not receiving repayment