IRPC Annual Report 2023

Mr. Jumpol Sumpaopol Age: 70 years (Complete the agenda of the Annual General Meeting of Shareholders for the year 2023) Education/Training • Bachelor of Sciences Industrial Education and Technology, Civil Engineering, King Mongkut’s University of Technology Thonburi • Bachelor of Engineering, Civil Engineering, King Mongkut’s University of Technology Thonburi • Certificate of Public and Private Management Program, National Institute of Development Administration • Diploma of Metropolitan Leader, Bangkok Metropolitan and King Prajadhipok’s Institute • Certificate of New Government Budget Management, University of California Los Angeles (UCLA) • Certificate of Infrastructure and System Development Traffic and Transportation • Certificate of Corporate Governance for Director and Senior Executive of State Enterprises and Public Organization (Class 11), King Prajadhipok’s Institute • Certificate of Senior Executive Management of Metropolitan Development “Mahanakhon” (Class 1), Bangkok Metropolitan • Certificate of Systematic Problem Solving and Decision Making: SPSDM, Office of the Public Sector Development Commission (OPDC) • Certificate, The Rule of Law and Democracy (Class 3), College Constitution Court • Certificate, Business Revolution and Innovation Network “BRAINS” (Class 2), The Federation of Thai Industries (F.T.I.) • Certificate Health Ambassador (Class 1), Chulabhorn Royal Academy • The Role of the Board in IT Governance, Year 2020, Thai Institute of Directors Association (IOD) • Director Certification Program (DCP), Class 136/2010, Thai Institute of Directors Association (IOD) Work Experience within the past 5 years Oct. 2019 - Apr. 2023 Independent Director/ Member of the Audit Committee, IRPC Public Company Limited Apr. 2013 - 2016 Deputy Governor of Bangkok, Bangkok Metropolitan Administration 2011 - 2013 Board of Directors, Metropolitan Electricity Authority (MEA) 2011 - 2013 Deputy Permanent Secretary for Bangkok, Bangkok Metropolitan Administration Oct. 2009 - Sep. 2011 Director General Public Works Department, Bangkok Metropolitan Administration Current Position Board member/Management in Listed Company - The Stock Exchange of Thailand Feb. 2017 - Present Independent Director/Chairman/ Chairman of Nomination and Remuneration Committee, Stonehenge Inter Public Company Limited Board member/Management in Non-Listed Company - The Stock Exchange of Thailand 2007 - Present University Promotion Committee Board, King Mongkut’s University of Technology Thonburi 41 Board of Directors, IRPC Public Company Limited 56-1 ONE REPORT 2023

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