Sub-Committees In keeping with corporate governance principles, the Board of Directors has appointed four standing committees to oversee critical matters in their separate specialized fields as follows: 1. Audit Committee The Audit Committee shall consist of at least three independent directors. Its composition, including duties and responsibilities, shall meet the requirements promulgated by the notifications of the Securities and Exchange Commission and the framework of the Capital Market Supervisory Board. Each of these directors 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 statements to ascertain whether they are indeed reliable. Its current members are: 1) Mr. Somnuk Bomrungsalee (Independent Director) Chairman of the Audit Committee 2) Ms. Siriwan Chierapong (Independent Director) Audit Committee 3) Mr. Jumpol Sumpaopol (Independent Director) Audit Committee All three directors on the Audit Committee possess the knowledge and experience required to review IRPC’s financial statements. 1) Mr. Somnuk Bomrungsalee Chairman of the Audit Committee Period Experience in reviewing financial statements Nov. 2018 - Present Audit Committee Megachem (Thailand) Public company Limited Dec. 2017 - Present Chairman of the Audit Committee IRPC Public Company Limited 2) Ms. Siriwan Chierapong Audit Committee Period Experience in reviewing financial statements Apr. 2019 - Present Audit Committee IRPC Public Company Limited 3) Mr. Jumpol Sumpaopol Audit Committee Period Experience in reviewing financial statements Oct. 2019 - Present Audit Committee IRPC Public Company Limited Office of Corporate Internal Audit and Secretary to the Audit Committee Mr. Prasitsak Sawasduang was appointed as Manager of Office of Corporate Internal Audit and the secretary to the Audit Committee since January 1, 2021 - Present (Mr. Prasitsak Sawasduang’s professional profile appears under Executive Profiles Page 53) The Audit Committee has assigned Office of Corporate Internal Audit to audit the company’s operations as well as the conduct of the management and employees to ensure they comply with all laws, related rules and regulations and the internal control system. The Office also handles both internal and external whistleblowing reports. The manager of Office of Corporate Internal Audit is independent and reports directly to the Audit Committee. 1) 2) 3) 229 Corporate Governance Structure and Important Information about the Board of Directors, Sub-committees, Executives, Employees and Others IRPC PUBLIC COMPANY LIMITED
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