has disclosed the issue about the procurement process of raw materials to The Stock Exchange of Thailand in Global Green Chemicals Public Company Limited Management’s Discussion and Analysis | 3 2Q2018

March 12,2020 Subject: Notification of the disposal of shares in the Biogas Power Plant Business of Akkrawat Crop Rotation Energy Company Limited (Revised No.2) Attention: President Stock Exchange of

Bangchak Corporation Plc. Management Discussion & Analysis of Business Operation For the 2nd quarter ended June 30th, 2019 Management Discussion and Analysis of Business Operation for Q2/2019

(Translation) No. IR/2561/034 9 July 2018 Subject: Resolutions of the Board of Directors' Meeting regarding entering into transactions with connected persons To: President The Stock Exchange of

E_1 Legal_FA_2015_12_29-c A CCoorrppLL44..11hhiigg A Executive Summary Management Discussion and Analysis For the Quarter Ended June 30, 2017 The global economy in the second quarter of 2017

E_1 Legal_FA_2015_12_29-c A brWCorpL.1hig A Executive Summary Management Discussion and Analysis For the Quarter Ending June 30, 2019 The Thai economy faced increased headwinds in the second quarter

1 --Translation-- Sor Gor 7/2018 January 19, 2018 Subject: Management Discussion and Analysis for the year ended December 31, 2017 (Unaudited) To: The President The Stock Exchange of Thailand

1 --Translation-- Sor Gor 11/2018 February 22, 2018 Subject: Management Discussion and Analysis for the year ended December 31, 2017 (Audited) To: The President The Stock Exchange of Thailand

-9320 1 Ref: PLC.2020/005 March 9, 2020 Subject : Dividend payment and the connected transaction and schedule of the 2020 Annual General Meeting of Shareholders (Amendment) To : President, The Stock

May 12, 2020 has resolved to approve the Company’s subsidiary, Cal- Comp Precision Holding Co., Ltd.’s (“CCPT-KY”) initial public offering plan (the “IPO Plan”) to be listed in the Taiwan Stock Exchange