IRPC One Report EN

Investor Relations Activities in 2021 Number of times Roadshows to meet investors 11 times consisting of: - International Roadshow 1 - Domestic Roadshow 10 IRPC Electronic Conferencing (E-Meeting) Quarterly Analyst Conference Call 4 Quarterly Analyst Meeting 4 Company Visit (Appointment) 13 Opportunity Day Activity - In cooperation with the Stock Exchange of Thailand (Quarterly) 4 Activity (Number of time) 2021 1. Press conference/ Interview 6 2. News releases/ News photos 65 3. TV/ Radio 46 4. Website (www.irpc.co.th) 17 5. Social Media (Facebook) 19,373 Page Followers Summary of activities to disclose information to shareholders and investors in 2021 Overview of interactions with the Media in 2021 211 Corporate Governance Policy IRPC PUBLIC COMPANY LIMITED

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