IRPC Annual Report 2023

Auxiliary Risk Management Committee at the Management Level In addition to the Risk Management Committee at the Board’s committee level, IRPC has established at the management level the following auxiliary risk management committees, workgroups, and risk agents to monitor enterprise-wide risk management activities and ensure greater efficiency in the company’s overall risk management and internal control systems: 1. Risk Management and Internal Control Committee (RMCC) 2. Supply Chain and Hedging Committee (SCHC) 3. Risk Manager responsible for managing overall risk management of work units. 4. Risk Owner responsible for risk management and determination of risk management plan. 5. Risk Agent responsible for coordinating among work units or projects to develop joint risk management plans and to report progress status of risk management or risk management outcomes to departmental manager or project manager to ensure the adequacy and suitability of risk management at the work unit level. Other Committees and Working Groups The Chief Executive Officer and President has also appointed Committees and other sub-committees as appropriate for the company’s strategic plan and the company’s situations in order to manage, drive, execute or screen operations regarding assigned duties, for example, 1. Rayong Factory Group Management Committee (RMM) to manage and integrate the overall work of the group of Rayong factories to be in line with the vision, mission, and to be ready to achieve the corporate goals. 2. Human Resources and Organizat ion Potent ial Management Committee (HOMC) to screen and advise on standards, mechanisms of Human Resource Management, organizational structure, and succession plan. 3. IRPC Subsidiary Alignment Management Committee (ISAC 1) to supervise subsidiaries in which the company holds more than 50 percent of shares. 4. IRPC Subsidiary Alignment Management Committee (ISAC 2) to supervise associate companies in which the company holds between 25-50 percent of shares. 5. License Management Committee under Section 9 to manage public land use matters and transparent handling and resolution of issues relating to community complaints in the best interest of both communities and the company’s business operations. 6. Environmental Quality Management Committee (EMC) to manage environmental quality and accountability to the society of IRPC Group in alignment with the quality, security, safety, occupational health, environment and energy management (QSSHE). 7. Management team at departmental manager level to drive operations according to the company’s strategy with a meeting of executives at the level of departmental manager and above (VP meeting) once a month. 241 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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