IRPC One Report EN

Dear Shareholders, The Corporate Governance Committee performs its duties in accordance with the responsibilities stipulated in its own charter, and as assigned by the Board of Directors. The committee provides corporate governance oversight by applying the Corporate Governance Code 2017 (CG Code 2017) of the Securities and Exchange Commission (SEC) and best practices of leading international corporations as appropriate in the context of IRPC’s operations to ensure maximum effectiveness. It also monitors the corporate governance performance, gives recommendations for improvement and reports the results to the Board of Directors on a quarterly basis. This is in order todevelop and strengthen the company’s corporate governance on par with internationally accepted standards. In 2021, the Corporate Governance Committee, consisting of three directors, namely (1) Air Marshal Boonsuib Prasit, Independent Director, acting as Chairman, (2) Mr. Chaiyaporn Puprasert, Independent Director, and (3) Mr. Supot Laosuarpha, Director, held a total of six meetings. Key developments in corporate governance matters during the year are summarized as follows: 1. Development and promotion of corporate governance policies and practices The Corporate Governance Committee formulated and approved the company’s corporate governance policies and guidelines as well as supervised and monitored its performance in corporate governance matters. The committee gave recommendations on anti-corruption policy, governance oversight policy, human rights policy, diversity and inclusion policy, and Governance, Risk and Compliance (GRC) to ascertain that effective oversight mechanisms are in place to ascertain these key functions are systematically in alignment to enable the company to reliably achieve its objectives, success and sustainability in line with national and international standards. 2. Promotion of corporate governance and sustainable growth The Corporate Governance Committee has considered and approved the sustainability management plan and society, community and environmental responsibility plans to ensure they are consistently implemented to achieve concrete results that are suitable and in alignment with IRPC’s vision and business strategies and international sustainability goals. The committee also closely monitored implementation of the plans and submitted reports at the meetings of the Corporate Governance Committee and the Board of Directors on a quarterly basis. It also promoted awareness and understanding of corporate governance principles through dissemination of information relating to key governance concepts and practices to lay the groundwork for sustainable development to executives and employees as well as internal and Message from the Chairman of the Corporate Governance Committee 56 IRPC PUBLIC COMPANY LIMITED 56-1 ONE REPORT 2021

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