controlling power and the nature of business during the preceding year as well as the material changes in the shareholding structure, management or business operation or any other important events (e.g., merger

the Company; 1.1.2 Material changes and developments Give a brief account on the material changes and developments regarding the controlling power and the nature of business during the preceding year as

fair value through profit or loss (FVTPL)”(Classified as debt instruments according to accounting standard). Given on May 11, 2020, the Federation of Accounting Professions passed the resolution on the

2017 Bangchak Corporation Plc. Table of Contents 7 9 09 8 Refinery Business 13 Marketing Business 14 Green Power Business 16 Bio-Based Products Business 18 Exploration & Production Business 22 26 24

February 21,2020 Subject: Notification of the disposal of in the Biogas Power Plant Business of Akkrawat Crop Rotation Energy Company Limited Attention: President Stock Exchange of Thailand Demeter

of Listed Companies B.E. 2547 dated October 29, 2004, the Transactions classified as a class 2 transaction. Hence, UAC would like to submit the Information Memorandum on the Acquisition of Assets as

revenues A. Revenues from service, classified by type of revenues 1.2.1 Revenues from dental services Unit : Million Baht March 31, 2019 March 31, 2018 Increase (Decrease) Amount % Medical treatment 112.58

type of revenues A. Revenues from service, classified by type of revenues 1.2.1 Revenues from dental services Unit : Million Baht Items For the year Increase (Decrease) Dec. 31, 19 Dec 31, 18 Amount

branches. 1.2 Analysis details for each type of revenues A. Revenues from service, classified by type of revenues 1.2.1 Revenues from dental services Unit : Million Baht March 31, 2020 March 31, 2019

1 Translation CEN 015-2020 August 14, 2020 Subject Notification on disposal of investment in subsidiaries (Biomass Power Plants Business) of Ua Withya Public Company Limited To The Manager and