IRPC One Report EN

Other Important Information Company Secretary In compliance with the Securities and Exchange Act, B.E. 2535 (1992), its B.E. 2551 (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 law and notifications of the Capital Market Supervisory Board. Duties and Responsibilities With great care, accountability, and integrity, the company secretary shall: 1) Provide directors with preliminary 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) Oversee that information and data are disclosed to regulators 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 invitations, shareholders’ meeting minutes, directors and management’s conflicts of interest reports, and other tasks prescribed by the Capital Market Supervisory Board and relevant laws. 6) Prepare information 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 on keep abreast of corporate governance 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 Preparation IRPC appointed Mr. Surachai Toaphicharttrakul as the person supervising accounting on August 1, 2013, who is professionally qualified in accordance with the Stock Exchange of Thailand’s notifications. Mr. Surachai Toaphicharttrakul is currently the Account Manager. He received a Master’s degree in Business Administration (Accounting for Planning and Control) from 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. (Mr. Surachai Toaphicharttrakul’s professional profile appears under the Management Committee Professional Profiles Page 53) Ms. Arisara Suthasut has served as Company Secretary since October 1, 2019 (Ms. Arisara Suthasut’s professional profile appears under Executive Profiles Page 52) 249 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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