IRPC Annual Report 2023

Summary of the performance evaluation results of the Board of Directors and Board’s committees for the year 2023 2) Results of performance evaluation of individual directors (self-evaluation) (average score of the entire Board) 1) Results of the performance evaluation of the entire Board of Directors Results of performance evaluation of individual directors (self-evaluation) (average score of the entire Board) Peer-based performance evaluation results (cross-evaluation, one-on-one) Aspect of evaluation 1. Board structure and qualifications of the directors 2. Roles and responsibilities of the Board in determining important business policies 3. Board practices 4. Directors attendance Overall evaluation results Evaluation results Year 2023 (%) 96.19 97.11 97.87 98.44 97.40 1. Board qualifications 2. Accountability and justification for one’s own decisions and actions 3. Performance with competence and effectiveness 4. Equitable and fair treatment of stakeholders 5. Transparency in performance of duties and disclosure 6. Having a vision to add long-term value to the business 7. Having professional integrity/ethical code of conduct Overall evaluation results Evaluation results for 2023 96.53 97.33 96.00 95.33 99.00 96.44 97.07 96.82 98.27 97.84 98.00 97.50 99.34 96.00 98.94 97.98 Evaluation topic 255 Report on Key Corporate Governance Activities 56-1 ONE REPORT 2023

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