IRPC One Report EN

• Subsidiaries and Joint Ventures Deloitte Touche Tohmatsu Jaiyos Audit Co., Ltd. “Deloitte” also proposed the audit fee of 1,155,000 Baht for IRPC’s five subsidiaries and one joint venture company. The audit fee for the year 2021 was 3,100,000 Baht, which was the same rate for 2020. This fee, however, did not include other accrued expenses, such as travel allowances, etc., but not exceeding 120,000 Baht, which were billed to IRPC according to customary practice. Fee 2020 (Auditor: Deloitte) 2021 (Auditor: Deloitte) 1. Audit fee 3,100,000 3,100,000 2. Non-audit fee 1,223,085 Fees for ** 1. Expenses for compliance with the jointly agreed procedures in accordance with the requirements of the Office of the Board of Investment (BOI) 2. Financial advisor’s fee 600,000 Fees for ** 1. Additional work to support the audit of large corporation’s financial statements Head of Internal Audit The Audit Committee appointed Mr. Prasitsak Sawasduang as Manager of the Corporate Internal Audit Office and secretary to the Audit Committee since January 1, 2021, to assist it with meeting appointments, meeting agenda, accompanying documents, and recording meeting minutes, as well as implementing the Audit Committee’s policies. (Mr. Prasitsak Sawasduang’s professional profile appears under Executive Profiles Page 53) Head of Compliance IRPC has assigned Ms. Arisara Suthasut, Executive Vice President Office of Corporate Affairs to oversee 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. (Ms. Arisara Suthasut’s professional profile appears under Executive Profiles Page 52) Head of Investor Relations and Contact Information Finance and Investor Relations Manager Ms. Kanyamas Rithidej Contact Investor Relations via one of the following channels: E-mail: ir@irpc.co.th Telephone: 0-2765-7380 Fax: 0-2765-7379 Appointment and Remuneration of the Auditor • IRPC Public company Limited The Audit Committee nominated Deloitte Touche Tohmatsu Jaiyos Audit Company Limited (Deloitte) as the 2021 auditor for IRPC. The nomination was approved at the 2021 Annual General Meeting of Shareholders. Deloitte is an independent auditor with a long standing reputation. It has no relations and/or vested interest in IRPC, its subsidiaries, directors, executives, majority shareholder, or related persons. Its fees were as follows: (Unit: Baht) 250 IRPC PUBLIC COMPANY LIMITED 56-1 ONE REPORT 2021

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