IRPC Annual Report 2023

photos, directorship at other listed companies, and date of commencement in the current positions. 9. Published the annual registration statement/annual report 2023 (Form 56-1, One Report), detailing its management approaches and economic, social, and environmental performance. Copies of the Corporate Sustainability Report were delivered to shareholders, along with the Annual Report, and were also available on the company’s website. 10. Presented a Communication on Progress (CoP) report to the UN Global Compact (UNGC) as the company has been a party to the global sustainability initiative since 2011. Since 2014 the company has submitted the highest reporting level known as GC Advanced. The report has been made available on the company’s website and an electronic copy was submitted to the website: www.unglobalcompact.org of the UN GC. 3.2 Disclosure to Investor and the Media IRPC published annual strategic communication plan for information disclosure to each stakeholder groups, adhering to good corporate governance principles with regard to equal access to information disclosure. In 2023, the company’s management met on regular basis with shareholders, securities analysts, investors, and members of the media through various activities that are adapted to suit the current situation, to discuss the company’s operating results. The meetings took place at forums, such as Analyst Meeting, Roadshows in Thailand and abroad. Other meetings with retail investors can be summarized as follows: Investor Relations Activities in 2023 Number of occasion (per year) Domestic Roadshows to meet investors 7 IRPC Electronic Conferencing (E-Meeting) Quarterly Analyst Conference Call 4 IRPC Quarterly Analyst Meeting 4 Company Visit (Appointment) 17 IRPC Opportunity Day Activity - In cooperation with the Stock Exchange of Thailand (Quarterly) 4 Summary of activities organized to disclose information to shareholders and investors in 2023 3. Disclosed remuneration criteria for the company’s directors and executive officers which were clearly presented in the annual registration statement/ the Annual Report 2023 (Form 56-1, One Report). 4. Disclosed directors and executive officers’ shareholding information as per the company’s policy. Such information disclosure conformed to rules and procedures prescribed by the SEC Office and SET. 5. Had no history of being ordered to amend its financial statements by the Stock Exchange of Thailand or the Securities and Exchange Commission. 6. Appointed the current certified public accountant who was approved by shareholders at the 2023 Annual General Meeting of Shareholders. This auditor was fully qualified and possessed none of the prohibitions under the SET rules. The audit fees and non-audit fees were presented to and approved by shareholders at the AGM. 7. The company’s financial statements were certified in its entirety by the auditor with unqualified opinion. 8. Disclosed on the company’s website information about the company’s directors and executive officers, including their names, current positions, education, experience, ownership of shares in the company, E-mail: ir@irpc.co.th Telephone: 0-2765-7380 Fax: 0-2765-7379 208 Corporate Governance Policy IRPC Public Company Limited

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