signing of the share purchase agreement and execution of the transaction to be completed within 2nd quarter of 2023. Classification: Internal FY22 MD&A Advanced Info Service Plc. 3 FY22 Financial Summary

Assets and Connected Transaction for the Entire Business Transfer and Allocation of Securities to the Specific Investor (Private Placement) To The President The Stock Exchange of Thailand Attachment 1

Refinery & Trading Business Group 15 Marketing Business Group 17 Power Plant Business Group 19 Bio-Based Products Business Group 21 Natural Resources Business Group 23 Statement of Financial Position 26 Cash

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

November 13, 2017 The President & Director, The Stock Exchange of Thailand (SET) LETTER OF CLARIFICTION: CENTEL’s Q3/2017 & YTD 9 MONTHS /2017 OPERATING PERFORMANCE RESULTS This is to inform the SET

/2019. 2/ Impact from the adoption of Thai Financial Reporting Standards 16 Leases (TFRS 16) since 1 January 2020 which caused higher depreciation and interest expenses (net after tax). Operating

March 20, 2019 Re: Notification of the Resolutions on the Acquisition of Land and Establishment of Subsidiary To: The President The Stock Exchange of Thailand Attachment 1. Information Memorandum of the

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

-Translation- Ref. No. PorBor.025 / 2019 August 28, 2019 Subject: Entering into Transaction of Disposing of Subsidiary’s Land and Buildings for the Debenture Debt repayment To: President The Stock

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