IRPC Annual Report 2023

(Ms. Siriwan Chierapong) Independent Director/ Chairperson of the Risk Management Committee 4. Provided opinions and recommendations on business risk management, such as oil and product price risks, liquidity and exchange rate risks, cyber security risks, etc. 5. Provided opinions and recommendations on operational risk management, such as safety, occupational health, and environmental risks, risks that may impact communities, risks associated with confidence in manufacturing plant, risks relating to water supply in the event of drought, etc. 6. Provided opinions and recommendations on enterprise risk management to working groups, consisting of the Risk Management and Internal Control Committee, which managed corporate risks according to stated policy and guidelines, and Supply Chain Risk Management and Financial Derivatives Committee, which monitored and analyzed the market situation and managed risks associated with prices and supply of crude oil, petroleum, and petrochemical feedstocks as well as making arrangements for trade in financial derivatives to effectively hedge against risks. 7. Followed up on project status and provided opinions and recommendations and laid out risk management approaches for the Ultra Clean Fuel Project (UCF) to achieve EURO 5-compliant diesel standard, and implementation of the Combined Heat and Power Project (CHP-III) to enable the company to produce EURO 5-compliant products as required by applicable laws. 8. Followed up on operations, and provided opinions and recommendations on operational risk management guidelines for IRPC subsidiaries to achieve the targeted return on investment according to the business plan. 9. Submitted reports on results of the supervision of risk assessment and risk mitigation measures to the Board of Directors on a quarterly basis. 10. Scrutinized and commented on the 2024 enterprise risks before presenting them for approval from the company’s Board of Directors by identifying those risks to correspond with the enterprise strategy and goals for sustainable growth. The Risk Management Committee has prudently performed the tasks assigned to us to the best of our ability, with independence in line with corporate governance for the benefits of IRPC and all stakeholders. 61 56-1 ONE REPORT 2023 Message from Chairperson of the Risk Management Committee

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