Ref. DBP. 066 / 2020 May 11, 2020 Subject : Clarification on Operating Results for the 1st Quarter ending March 31, 2020 To : President The Stock Exchange of Thailand Diamond Building Products Public

- ร่าง - 1 Nov 11, 2019 Subject Management Discussion and Analysis for the period of three months and the period of 1st half ended 30th September 2019 To President of the Stock Exchange of Thailand

and Allocation of Securities to the Specific Investor (Private Placement) To The President The Stock Exchange of Thailand Attachment 1. Information Memorandum regarding the Acquisition of Assets and

DCORP 008/2020 February 26th, 2020 Subject 2019 Performance Report for the Year Ended December 31st, 2019 and the Reduction of Performance Exceeding 20% To The Securities and Exchange Commission and

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 2019 ended March 31

Stock Exchange of Thailand Demeter Corporation Public Company Limited (“DCORP” or the “Company”) would like to submit the reviewed financial statements for second quarter of the year 2019 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 2019

Media Public Company Limited No. 2 (VGI-W2), Capital Increase through a General Mandate and Calling the 2018 Annual General Meeting of Shareholders To The President The Stock Exchange of Thailand

Securities and Exchange Commission No. Sor Nor. 87/2558 Re: Rules, Conditions, and Procedures for Management of Retail Funds, Mutual Funds for Accredited Investors, Mutual Funds for Institutional Funds, and

-2338-3000 Fax: 0-2338-3334 www.nationgroup.com 25 May 2020 Subject : Notification on Resolution of the Board of Directors’ Meeting No. 6/2020, Change of Directors and Directors’ Power, Entering into