March 20, 2018 Subject The amendment of Information Memorandum on Acquisition of Assets To President The Stock Exchange of Thailand According, Bangkok Dec-con Public Company Limited has reported

to investors in private placement, the acquisition of assets and convening the Extraordinary General Meeting of the Shareholders No. 1/2018 (Revise) To : President, The Stock Exchange of Thailand

regarding Definition of Institutional Investor, Ultra High Net Worth, and High Net Worth Investor; “client” means user of an intermediary’s services; “Stock Exchange” means the Stock Exchange of Thailand

retained earnings under the Company's financial statement, to the shareholders, at an amount totaling THB 500,000,000 at the rate of THB 0.50 per share and set the record date on August 23, 2019; and to pay

/2019 (2nd additional) To Director and Manager The Stock Exchange of Thailand Enclosure 1. Information Memorandum on the Acquisition of Assets (Schedule 1) Regarding the Purchase of the Ordinary Shares of

Limited To: Secretary-General, The Office of The Securities and Exchange Commission (the “SEC”) President, The Stock Exchange of Thailand (the “SET”) Board of Directors and Securities Holders of Glow Energy

assets and convening the Extraordinary General Meeting of the Shareholders No. 1/2018 (Revise 3) To : President, The Stock Exchange of Thailand Attachment : 1. Capital Increase Report Form (F 53-4) 2

/2019 (additional) To Director and Manager The Stock Exchange of Thailand Enclosure 1. Information Memorandum on the Acquisition of Assets (Schedule 1) Regarding the Purchase of the Ordinary Shares of KPN

20 - Natural Resources Financial Position Statement of Cash Flows Statement Financial Ratios Environment Management Accounting Management Discussion and Analysis of Business Operation for Q2/2019

Ref. No. IVL [002/08/2019] 8 August 2019 The President The Stock Exchange of Thailand Subject: Submission of Quartely Review of Financial Statements and the Management Discussion and Analysis of