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

offering of warrant to purchase ordinary shares of the Company to existing shareholders and joint ventures in subsidiary. (Edited) To: The President The Stock Exchange of Thailand Enclosure 1. Capital

. The SEC, Thailand cannot undertake any responsibility for its accuracy, nor be held liable for any loss of damages arising from or related to its use. PAGE (Translation) 2 The Securities and Exchange

. The SEC, Thailand cannot undertake any responsibility for its accuracy, nor be held liable for any loss of damages arising from or related to its use. The Securities and Exchange Commission Notification

, Thailand cannot undertake any responsibility for its accuracy, nor be held liable for any loss of damages arising from or related to its use. The Securities and Exchange Commission Notification of the

Flows Statement 28 Financial Ratios 30 Environmental Management Accounting 31 Management’s Perspective towards 2019 Performance Management Discussion and Analysis of Business Operation for FY2018 Bangchak

statement, Approval of the disposition of shares in subsidiary and Appointment of new director replacing resigned director To: The President, The Stocks Exchange of Thailand The Board of Directors’ Meeting of

statement, Approval of the disposition of shares in subsidiary and Appointment of new director replacing resigned director Edited To: The President, The Stocks Exchange of Thailand The Board of Directors

1 No. EXE. 031-10-17 6 October 2017 Re: Report on Investment of the Subsidiary To: President The Stock Exchange of Thailand Reference is made to the resolution of the Board of Directors of Venture

month net loss of -1,043 million Baht and the effect of the changes in accounting polices due to the adoption of TFRS 15 of 124 million Baht as well as loss from exchange rate of -91 million Baht