GC One Report 2023 [EN]

Age: 63 Years Appointed: 4 April 2022 Age: 52 Years Appointed: 1 January 2023 Mr. Somkiat Prajamwong Lieutenant General Nimit Suwannarat Independent Director (Non-executive Director) Director to the Nomination & Remuneration Committee Independent Director (Non-executive Director) Director to the Audit Committee Director to the Nomination & Remuneration Committee Education/Training Doctor of Philosophy in Agricultural and Irrigation Engineering, Utah State University, U.S.A. Master of Engineering (Water Resources Development), Asian Institute of Technology (AIT) Bachelor of Engineering (Irrigation Engineer), Kasetsart University Agricultural and Cooperative Development Course for Senior Management, Class 41, Ministry of Agriculture and Cooperatives Change Management Training Programme, RIPA International Training Center, United Kingdom Advanced Certificate Course in Public Economic Management for Executives, Class 7, King Prajadipok’s Institute (2009) Diploma, National Defence College, The National Defence Course, Class 54, National Defence College of Thailand (NDC) (Honorable mentions for Individual Research) Foreign Affairs Executive Programme, Class 6, Devawongse Varopakarn Institute of Foreign Affairs, Ministry of Foreign Affairs (Outstanding Individual Research) Anti-Corruption Strategic Management for Senior Executives, Class 8, Sanya Dharmasakti National Anti-Corruption Institute, Office of the National Anti-Corruption Commission Director Training Ethical Leadership Program (ELP), Class 28/2022, Thai Institute of Directors Association (IOD) Director Certification Program (DCP), Class 329/2022, Thai Institute of Directors Association (IOD) Board Industry Experience & Expertise Energy, Organizational Management, Administration, and Corporate Governance Board Member/Management in Listed Company - The Stock Exchange of Thailand : 2 Independent Director, Seven Utilities and Power Public Company Limited Independent Director and Director to the Nomination and Remuneration Committee, PTT Global Chemical Public Company Limited Board Member/Management in Non-Listed Company - The Stock Exchange of Thailand: None Position in Other Organizations/Institutions : 2 Chairman, Committee of the Fish Marketing Organization, Ministry of Agriculture and Cooperative Special Advisor, Water Management, the Eastern Economic Corridor Office of Thailand (EECO) Work Experiences (5-year Past Experiences) 2018 - 2021 Secretary-General, Office of the National Water Resources (ONWR) Shareholding : None Relation among Family with other Directors, Management, Major Shareholders of the Company or Subsidiaries : None Education/Training Master of Arts in International Relations, Chulalongkorn University Master of Science in Electrical Engineering (Communications and Signal Processing), University of Minnesota, Minnesota, U.S.A. Bachelor of Science in Electrical Engineering, Virginia Military Institute, Virginia, U.S.A. Director’s Briefing - Corporate Strategy beyond the Crisis, a Chairman/Board Perspective, Bain & Company, Inc. Public Key Infrastructure (Certification Authority, Digital Signature) Course, Ottawa, Canada Electronic Commerce Course, Orlando, Florida, U.S.A. Computer Emergency Response Team, Carnegie Mellon, Pittsburgh, Pennsylvania, U.S.A. National Crisis Management Course, APCSS, Honolulu, Hawaii, U.S.A. Command and General Staff Officer Course (Class 83), Command And General Staff College Joint Staff Course, Joint War College Intermediate Certificate Course in Political Leadership in the New Era (Class 2), King Prajadhipok’s Institute Director Training Director Certification Program (DCP), Class 216/2016, Thai Institute of Directors Association (IOD) Board Industry Experience & Expertise Energy, Petroleum, Organizational Management, Risk Management, National Security, and Information Technology Board Member/Management in Listed Company - The Stock Exchange of Thailand: 3 Independent Director, Member of the Nomination and Remuneration Committee, Member of the Compliance Committee and Member of the Risk Oversight Committee, Krung Thai Bank Public Company Limited Independent Director, Thaicom Public Company Limited Independent Director, Director to the Audit Committee and Director to the Nomination & Remuneration Committee, PTT Global Chemical Public Company Limited Board Member/Management in Non-Listed Company - The Stock Exchange of Thailand: None Position in Other Organizations/Institutions: 2 Special Advisor, Office of the Permanent Secretary for Defence Advisor to the Prime Minister Work Experiences (5-year Past Experiences) 1 Sep 2014 - 31 Aug 2023 Independent Director, Member of the Risk Management Committee, and Member of the Corporate Governance and Sustainability Committee, PTT Exploration and Production Public Company Limited 2018 - 30 Sep 2021 Deputy Chief of Office, Office of Military Affairs Coordination to the Ministry of Foreign Affairs, Office of Policy Planning Ministry of Defence, Ministry of Defence Shareholding : None Relation among Family with other Directors, Management, Major Shareholders of the Company or Subsidiaries : None 367 PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED Form 56-1 One Report 2023

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