1 June 30, 2020 Subjects : The acquisition of ordinary shares of APEX Energy Co., Ltd. increased 18.75% Attention : The Director and Manager of the Stock Exchange of Thailand Eastern Power Group

: pato1@cscoms.com August 11, 2017 President The Stock Exchange of Thailand The consolidated financial statement of Pato Chemical Industry Plc. and its subsidiary for Q2 ended June 30, 2017 operational

MDA Q3_2018 (Eng.) November 7, 2018 Subject : Interim Management Discussion and Analysis of Q3/2018 Attention : President of The Stock Exchange of Thailand We attach herewith the financial statements

MD&A Q2_2020 (Eng ) July 31, 2020 Subject : Interim Management Discussion and Analysis of Q2/2020 Attention : President of The Stock Exchange of Thailand We attach herewith the financial statements

Translation CEN 022-2017 August 11, 2017 Subject Management Discussion and Analysis for business operation of quarter 2/2017 To The Manager and President The Stock Exchange of Thailand For 3 months

-Translation- No. ECF2 041/2561 12 November 2018 Subject: Management Discussion and Analysis of the 3rd quarter ended September 30, 2018 To President The Stock Exchange of Thailand East Coast

Transaction type 3 according to the Notification No. Tor Jor 21/2008 of the Capital Market Commission: Related Party transaction and the Notification of the Stock Exchange of Thailand (SET) Re: Disclosure of

The Stock Exchange of Thailand Enclosure: Information Memorandum on the Asset Disposal, Schedule 1 of Rich Asia Corporation Public Company Limited Reference to the Board of Directors’ meeting of Rich

the company was voted for the third consecutive years. However, the company’s securities has selected in the SET High Dividend 30 Index or SETHD from the Stock Exchange of Thailand which the price index

for the third consecutive years. However, the company’s securities has selected in the SET High Dividend 30 Index or SETHD from the Stock Exchange of Thailand which the price index reference 30 shares