Dr. Siri Jirapongphan Age: 69 Years Appointed Positions Independent Director/Chairman Date of being an Independent Director 19 December 2022 Date of being a Director/Chairman 5 April 2022 Years of being a Director/Chairman 1 Year 7 Months Possession of IRPC shares (%) No. of share “IRPC”: - Share Possession: - % Family relationship within the Company, major shareholder or subsidiaries None Education/Training • Bachelor’s Degree in Chemical Engineering (Honor), California Institute of Technology, USA • Doctor’s Degree in Chemical Engineering, Massachusetts Institute of Technology, USA • Director Luncheon Briefing (M-DLB) Class 2/2008, Thai Institute of Directors Association (IOD) • Director Certification Program (DCP) Class 77/2006, Thai Institute of Directors Association (IOD) Work experience within the past 5 years Jun. 2021 - Oct. 2022 Business rehabilitation plan administrator, Thai Airways International Public Company Limited Apr. 2021 - Apr. 2022 Chairman of The Nomination and Remuneration Committee/Member of the Audit Committee, Bangkok Bank Public Company Limited Nov. 2017 - Jul. 2019 Minister of Energy Nov. 2015 - Nov. 2017 Independent Director/ Member of the Audit Committee, Thai Oil Public Company Limited Oct. 2014 - Sep. 2015 Member of the National Reform Council Sep. 2014 - Apr. 2015 Independent Director/Member of the Risk Management Committee, PTT Global Chemical Public Company Limited Jan. 2010 - Nov. 2017 Executive Director, Petroleum Institute of Thailand Current Position Board member/Management in Listed Company - The Stock Exchange of Thailand Dec. 2022 - Present Independent Director, IRPC Public Company Limited Apr. 2022 - Present Chairman, IRPC Public Company Limited Apr. 2022 - Present Chairman of the Audit Committee, Bangkok Bank Public Company Limited Jul. 2020 - Present Independent Director, Bangkok Bank Public Company Limited Board member/Management in Non-Listed Company - The Stock Exchange of Thailand Oct. 2021 - Present Director, Petroleum Institute of Thailand Foundation Boards of Directors, IRPC Public Company Limited 26 Board of Directors, IRPC Public Company Limited IRPC Public Company Limited
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