ที่บชง Page 1 of 5 Ref. Bor Chor Ngor 0413/2019 12 November 2019 Subject: Management Discussion and Analysis for the Third Quarter ended 30 September 2019 To President The Stock Exchange of Thailand

No. CAZ 017/2020 07 August 2020 Subject: Management Discussion and Analysis for the 2nd Quarter ended 30 June 2020 Attention: The President, The Stock Exchange of Thailand CAZ (Thailand) Public

คำอธิบายและการวิเคราะห์ของฝ่ายจัดการ 15 May 2020 Re: To clarify the financial statements as of 31 March 2020 To: President The Stock Exchange of Thailand WHA Corporation Public Company Limited (the

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

Exchange of Thailand Demeter Corporation Public Company Limited (“DCORP”) (“The Company”) would like to submit the reviewed financial statements for year 2017 ended December 31, 2017. Such financial

Stock Exchange of Thailand Demeter Corporation Public Company Limited (“DCORP”) (“The Company”) would like to submit the reviewed financial statements for year 2017 ended December 31, 2017. Such financial

: President Stock Exchange of Thailand Demeter Corporation Public Company Limited (“DCORP” or the “Company”) would like to submit the reviewed financial statements for first quarter of the year 2018 ended March

: President Stock Exchange of Thailand Demeter Corporation Public Company Limited (“DCORP” or the “Company”) would like to submit the reviewed financial statements for first half of the year 2018 ended June 30

Attention: President Stock Exchange of Thailand Demeter Corporation Public Company Limited (“DCORP” or the “Company”) would like to submit the reviewed financial statements for first 9 months of the year 2018

(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