No. ComSec. 3/2020 18 March 2020 Subject: Connected transaction: Rental of real estate Attention: The President The Stock Exchange of Thailand Raimon Land Public Company Limited (“the Company”) would

วันที่ 14 สิงหาคม 2550 DEMCO Public Company Limited No. Demco AC001/2019 February 28, 2019 Subject : The company’s operating result of the year 2018 To : The president, The Stock Exchange of Thailand

August 11,2010 May 11, 2017 Re : Clarification on percentage of change more than 20% in Q1/2017 To : Director and Manager of the Stock Exchange of Thailand Revenue from sales The Company's revenue

the shareholding in subsidiary companies To: President The Stock Exchange of Thailand Attachment: Structure of the shareholding in subsidiary companies Filter Vision Public Company Limited (“the Company

10th May, 2018 Subject: Management Discussion and Analysis (MD&A) of the financial as at and for three months’ period ending 31st March, 2018 Attention: President The Stock Exchange of Thailand P.C.S

Exchange of Thailand. Demco Public Company Limited would like to inform you herewith the company result for the quarter 1/2020 according to the company’s consolidated financial statements for the year ended

1 27 May 2019 Subject: Explanation of operating result in the financial statement ended 31 March 2019 To: President of the Stock Exchange of Thailand With reference to the financial statement of FY

1/4 REF: SET-2018-021 December 12, 2018 Subject Report of the Resolutions of Board of Directors’ Meeting No. 5/2018 – Related Party Transaction To President The Stock Exchange of Thailand Filter

AC 52/07-003 ACC1/19-056 11 November 2019 Subject : The Purchase of the Ordinary Shares of Duwell Intertrade Co., Ltd. To: Director and Managing Director The Stock Exchange of Thailand Qualitech

รายงานการประชุมคณะกรรมการบริหาร ครั้งที่ 1/2543 -Translation- 25 February 2019 Subject : Disclosure of connected transaction Attention : President The Stock Exchange of Thailand Vanachai Group Public