Head of Internal Audit Mr. Siraphong Wisetsuwan Senior Manager holds the position of Manager of Office of Corporate Internal Audit and secretary to the Audit Committee 1 January 2023 – Present, to support the work of the Audit Committee, to organize meetings of the Audit Committee, including implementation in accordance with the Audit Committee’s policy. (Mr. Siraphong Wisetsuwan’s professional profile appears in Executive Profiles section, page 52) Head of Compliance Miss Arisara Suthasut Executive Vice President, Office of Corporate Affairs, is responsible for corporate compliance, to promote and facilitate oversight for corporate compliance, including ensuring that IRPC executives and employees and those of its subsidiaries abide by relevant laws and regulations. (Miss Arisara Suthasut’s professional profile appears in Executive Profiles section, page 50) Head of Investor Relations (IR) Miss Athita Anantaturakarn, Manager, Finance and Investor Relations, is responsible for investor relationships, coordinating among companies and stakeholders, such as shareholders, analysts, investors, suppliers, regulatory authorities and the media, to disseminate information effectively while listening to outsider views and opinions as valuable input. Contact Investor Relations Appointment and Remuneration of the Auditor IRPC Public Company Limited In 2023, the Audit Committee nominated EY Office Company Limited “(EY)” as the auditor for IRPC. The nomination was approved by the Annual General Meeting of Shareholders. EY is an independent auditor with a longstanding reputation. It has no relations and/or vested interest in IRPC, its subsidiaries, directors, executives, majority shareholder, or related persons. The audit fee for the year 2023 was 2,600,000 Baht, which was the same as that of 2022. This fee, however, did not include other accrued expenses, such as travel allowances, miscellaneous expenses, etc., but not exceeding 130,000 Baht, which were billed according to customary practice. Audit fee (Unit: Baht) 2022 (Auditor: EY) 2023 (Auditor: EY) Audit fee 2,600,000 2,600,000 Non-audit fee N/A N/A E-mail: ir@irpc.co.th Telephone: 0-2765-7380 Fax: 0-2765-7379 Line: Subsidiaries and Associated Companies of IRPC Public Company Limited EY Office Company Limited “(EY)” was nominated as the auditor for the year 2023 of 6 subsidiaries and associated companies, namely IRPC Oil Company Limited, IRPC A&L Company Limited, IRPC Technology Co., Ltd., Rakpasak Co., Ltd., iPolymer Co., Ltd. and Innopolymed Co., Ltd., for audit fee of 1,040,000 Baht. QR CODE 251 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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