IRPC Annual Report 2023

1) Miss Siriwan Chierapong (Independent Director) Chairperson of the Risk Management Committee 2) Miss Piangpanor Boonklam Member of the Risk Management Committee 3) Mr. Prasong Intaranongphai Member of the Risk Management Committee 4) Mr. Pornchai Thiraveja Member of the Risk Management Committee 5) Mr. Kris Imsang Member of the Risk Management Committee Mr. Pranarch Kosayanont, Executive Vice President, Strategy, Planning and Business Development acting as secretary to the Risk Management Committee January 2023 – Present 4. The Risk Management Committee The Risk Management Committee shall consist of at least three directors who are petroleum or petrochemical experts. The committee is tasked with formulating risk management policy, risk management plan and procedures across the entire company that are aligned with IRPC business plan and strategies. Its current members are: Term of Office 1) The term of office is the same as the term of office of the company’s directors (Not more than 3 years). 2) Member of the Risk Management Committee who retires by rotation may be re-appointed by the Board of Directors at its own discretion (not more than three consecutive terms, or a combined total of up to nine years. There will be no exceptions). Duties and Responsibilities 1. Formulate suitable, effective policy and give recommendations on the management of risks associated with IRPC’s business operations. 2. Provide oversight for enterprise-wide risk management, starting with identification of risks based on internal and external factors. Risks are assessed based on impact and likelihood of them happening, so appropriate risk management measures can be taken. 3. Develop risk management systems and promote effective use of risk management tools, such as derivatives, futures and hedging, etc. 4. Supervise, monitor and review the corporate risk management to ensure its effectiveness as well as assessing compliance with the risk management framework. 1) 2) 3) 4) 5) 237 Corporate Governance Structure and Important Information about the Board of Directors, Board’s Committees, Executives and Employees 56-1 ONE REPORT 2023

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