IRPC Annual Report 2023

6. Promote Board effectiveness in fulfilling its duties and responsibilities under the framework of good corporate governance, and to support the work of the CEO and President. 7. Supervise and monitor the performance of the Board and its committees to ensure that IRPC’s objectives are accomplished. 8. Exercise the casting vote at Board meetings in the event of equality of votes. Board’s Committees To fulfill its commitment to good corporate governance principles, the Board of Directors has established four standing committees to screen and manage specialized tasks as well as to provide advice to ensure Board’s decision-making effectiveness. The Board’s committees are structured as follows: 1. The Audit Committee The Audit Committee shall consist of at least three independent directors who have qualifications, duties and responsibilities in accordance with the criteria set forth in the notifications of the Securities and Exchange Commission and the Capital Market Supervisory Board. Each of the members of the Audit Committee shall possess the knowledge, expertise and experience that the role demands. The Audit Committee shall have at least one director with sufficient knowledge and experience in accounting and finance to review financial reports to ascertain their accuracy and reliability. The current members of the Audit Committee are: 1) Mr. Yodchat Tasarika (Independent Director) Chairman of the Audit Committee 2) Mr. Somchai Rangsithananon (Independent Director) Member of the Audit Committee 3) M.D. Korn Pongjitdham (Independent Director) Member of the Audit Committee Two members of the Audit Committee are knowledgeable, experienced and capable of reviewing the company’s financial statements. 1. Mr. Somchai Rangsithananon April 2023 – present Audit Committee Experience in reviewing financial statements Member of the Audit Committee, IRPC Public Company Limited 2. M.D. Korn Pongjitdham April 2023 – present Audit Committee Experience in reviewing financial statements Member of the Audit Committee, IRPC Public Company Limited 1) 2) 3) 229 Corporate Governance Structure and Important Information about the Board of Directors, Board’s Committees, Executives and Employees 56-1 ONE REPORT 2023

RkJQdWJsaXNoZXIy ODg4NTI=