IRPC One Report 2022 EN

Mr. Chawalit Tippawanich Age: 60 Years (Resigned 30 September 2022) Education/Training • Bachelor of Engineering in Electrical Engineering, King Mongkut’s Institute of Technology Ladkrabang • Master of Engineering in Industrial Engineering Management, Asian Institute of Technology • Advance Management Program (AMP 187) - Harvard Business School, Executive Education, USA • GE Energy Customer Executive Leadership Program (GE:PTT Executive Leadership) - GE Global Learning Crotonville Leadership Institute, USA • Advanced Certificate Course in Politics and Governance in Democratic Systems for Executives (Batch 23) • Top Executives in the Energy Education Program (Batch 12), Thailand Energy Academy • The Joint State-Private Sector Course (Batch 5), Police College • Leadership Development Program III (Batch 2), PTT Leadership and Learning Institute • Director Certification Program (DCP), Class 152/2011, Thai Institute of Directors Association (IOD) Work experience within the past 5 years Jan. 2022 - Sep. 2022 Director, IRPC Polyol Company Limited Oct. 2021 - Sep. 2022 Chairman, PTT Energy Solutions Company Limited Apr. 2021 - Sep. 2022 Member of the Council of Honorable Institutions, Vidyasirimedhi Institute of Science and Technology (VISTEC) Mar. 2021 - Sep. 2022 Advisor to the Thai Volunteer Power Club Mar. 2021 - Sep. 2022 Chairman, IRPC OIL Company Limited Jan. 2021 - Dec. 2021 Chairman, IRPC Polyol Company Limited Jan. 2021 - Sep. 2022 Council of Trustees, Petroleum Institute of Thailand Dec. 2020 - Sep. 2022 Director/Member of the Risk Management Committee/President and Chief Executive Officer/Secretary of the Board of Directors, IRPC Public Company Limited Dec. 2020 - Sep. 2022 Director, UBE Chemicals (Asia) Public Company Limited Dec. 2020 - Sep. 2022 Chairman, IRPC A&L Company Limited Dec. 2020 - Sep. 2022 Chairman, IRPC Technology Company Limited Dec. 2020 - Sep. 2022 Chairman, iPolymer Company Limited Dec. 2020 - Sep. 2022 Council Member/Executive Committee, Thailand Business Council for Sustainable (TBCSD) Dec. 2020 - Sep. 2022 Advisory Committee of the Petroleum and Petrochemical College, Chulalongkorn University Dec. 2020 - Oct. 2021 Deputy Chairman, PTT Energy Solutions Company Limited Jul. 2020 - Sep. 2022 Director, The Federation of Thai Industries Apr. 2019 - Nov. 2020 Director, Glow Energy Public Company Limited Mar. 2019 - Nov. 2020 Director, Glow Company Limited Mar. 2019 - Nov. 2020 Director, Glow SPP 2 Company Limited Mar. 2019 - Nov. 2020 Director, Glow SPP 3 Company Limited Mar. 2019 - Nov. 2020 Director, Glow IPP 2 Holding Company Limited Mar. 2019 - Nov. 2020 Director, Glow SPP 11 Company Limited Mar. 2019 - Nov. 2020 Director, Glow IPP Company Limited Jan. 2019 - Nov. 2020 Director, Ratchaburi Power Company Limited Nov. 2018 - Nov. 2020 Director, Xayaburi Power Company Limited Oct. 2018 - Nov. 2020 Director/Member of the Risk Management Committee/President and Chief Executive Officer/Secretary of the Board of Directors, Global Power Synergy Public Company Limited 2018 - Sep. 2022 Senior Executive Vice President, Downstream Petroleum Business Group, PTT Public Company Limited 2017 - 2018 Executive Vice President, Downstream Business Group Alignment, PTT Public Company Limited secondment in the position of Executive Vice President-Organization Effectiveness of Thaioil Public Company Limited 2015 - 2016 Executive Vice President, Downstream Business Group Alignment, PTT Public Company Limited secondment in the position of President of HMC Polymers Company Limited Current Position Board member/Management in Listed Company - The Stock Exchange of Thailand None Board member/Management in Non-Listed Company - The Stock Exchange of Thailand None 47 Management Team IRPC PUBLIC COMPANY LIMITED

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