IRPC Annual Report 2023

Other important information Company Secretary Miss Arisara Suthasut has served as Company Secretary October 1, 2019 – Present (Miss Arisara Suthasut’s professional profile appears in Executive Profiles section Page 50) In compliance with the Securities and Exchange Act 1992, its 2008 amendments, and the Corporate Governance Code, the Board of Directors has appointed the Executive Vice President, Office of Corporate Affairs, as Company Secretary, tasked with performing the duties outlined in the Securities and Exchange Act 1992, other applicable laws and notifications of the Capital Market Supervisory Board. Duties and Responsibilities 1. Provide directors with basic advice on matters relating to laws, regulations, company’s Articles of Association, monitor corporate compliance, and report material changes to the Board. 2. Organize Board and shareholders’ meetings in accordance with the law, IRPC’s Articles of Associations, and customary practices. 3. Record the minutes of Board and shareholders’ meetings and ensure compliance with or execution of Board and shareholders’ resolutions. 4. Ascertain that information and data are disclosed to regulatory authorities in conformity with rules and regulations. 5. Prepare and catalog important documents, the Board of Directors’ roster, meeting notices, meeting minutes, the company’s annual reports, shareholders’ meeting invitation, shareholders’ meeting minutes, directors and management’s conflicts of interest reports, and other actions required by the Capital Market Supervisory Board and relevant laws. 6. Prepare informat ion and reports pertaining to the Board and corporate governance, which are needed to apply for membership, certification for good corporate citizenship and compliance with national and international standards. 7. Implement anti-corruption activities in accordance with the Board’s policies and measures. 8. Acquire information, build knowledge base, and adopt best practices relating to the company secretary’s duties and responsibilities, and keep abreast of corporate governance practices at national and international levels, and apply them as appropriate. The company secretary also attends training programs and workshops to stay up to date on changes and trends in laws, regulations and evolving corporate governance management approaches. 9. Facilitate one- and two-way communication channels for the discussion and dissemination of information on good governance with IRPC’s stakeholders, including investors, shareholders, the media, and the public. Person Assigned the Direct Responsibility of Supervising Accounting Mr. Surachai Toaphicharttrakul has served as Accounting Manager August 1, 2013 – Present (Mr. Surachai Toaphicharttrakul’s professional profile appears in Executive Profiles section Page 51) Mr. Surachai Torapichattrakul Accounting Manager was assigned as the person supervising accounting on August 1, 2013. Graduated with a Master of Business Administration. (Accounting for Planning and Control) Kasetsart University and has passed training for continuous knowledge development in accounting for not less than six hours per year, in compliance with the requirements of the Department of Business Development’s notification, and has all the qualifications in accordance with notifications of the Stock Exchange of Thailand. 250 Corporate Governance Structure and Important Information about the Board of Directors, Board’s Committees, Executives and Employees IRPC Public Company Limited

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