Ref. DBP. 141 / 2017 November 13, 2017 Subject : Clarification on Operating Results for the 3-Month Period and 9-Month Period ending September 30, 2017 To : President The Stock Exchange of Thailand

Ref. DBP. 111 / 2020 August 10, 2020 Subject : Clarification on Operating Results for the 2nd quarter and 6-month period ending June 30, 2020 To : President The Stock Exchange of Thailand Diamond

megawatts has started its commercial operation consistent with Ancillary Service Deed System Restart Service which enables Kemerton Power Station to provide system restart service to the local grid of the

“Institutional Investor Corporate Awards 2020” organized by Alpha Southeast Asia including “Most Organized Investor Relations”, “Strongest Adherence to Corporate Governance”, and “Most Consistent Dividend Policy

1 --Translation- Sor Gor 75/2017 July 21, 2017 Subject: Management Discussion and Analysis for the second quarter ended June 30, 2017 (Unaudited) To: The President The Stock Exchange of Thailand

1 --Translation- Sor Gor 85/2017 August 24, 2017 Subject: Management Discussion and Analysis for the second quarter ended June 30, 2017 (Audited) To: The President The Stock Exchange of Thailand

Cease Such Business to Connected Person Attn.: President The Stock Exchange of Thailand Enclosure Information Memorandum re: The Disposition of Assets Relating to the Business of Manufacturing Accessories

: 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