Age: 53 Years Appointed: 1 April 2020 Mr. Pukpong Wungrattanasopon Executive Vice President - Olefins Education/Training Master of Science (Petrochemical Technology), The Petroleum and Petrochemical College, Chulalongkorn University Bachelor of Science (Chemical Technology), Chulalongkorn University Subsidiary Governance, Business and Legal Issues for Directors and Executives and Transformative Leadership for Global Enterprise, 2022, Director’s Legal Liabilities, Ethical Leadership for New Era and High Performing Board & Board Effectiveness, 2021 (In-house Programs by GC) and Director Certification Program (DCP), Class 236/2017, Thai Institute of Directors Association (IOD) Board Member/Management in Listed Company - The Stock Exchange of Thailand : 1 Executive Vice President - Olefins, PTT Global Chemical Public Company Limited Board Member/Management in Non-Listed Company - The Stock Exchange of Thailand : 1 Director, HMC Polymers Company Limited Position in Other Organizations/Institutions : 1 Vice President, Thai Institute of Chemical Engineering and Applied Chemistry Work Experiences (5-year Past Experiences) 17 Nov 2016 - 31 Mar 2023 Director, PTT Phenol Company Limited 2 Jan 2020 - 19 Sep 2022 Director, Thai Tank Terminal Limited 2 Jan 2020 - 19 Sep 2022 Executive Committee Member, Thai Tank Terminal Limited 1 Jan 2021 - 5 Aug 2022 Director, GC Glycol Company Limited 1 Oct 2019 - 31 Mar 2020 Acting Executive Vice President - Group Performance Center, PTT Global Chemical Public Company Limited 1 Aug 2016 - 30 Sep 2019 Senior Vice President - Group Performance Center, Aromatics, PTT Global Chemical Public Company Limited Shareholding : None Relation among Family with other Directors, Management, Major Shareholders of the Company or Subsidiaries : None Age: 59 Years Appointed: 1 July 2022 Mrs. Jeeranee Pimthanothai Executive Vice President - Technical, Engineering and Maintenance Education/Training Master of Engineering (Petrochemical Technology), Chulalongkorn University Bachelor of Science (Chemical Technology), Chulalongkorn University Leadership Innovation & Strategy, GE Crotonville, U.S.A. Leadership Development Program (LDP 1), PTT Leadership and Learning Institute (PLLI), PTT Public Company Limited NIDA-Wharton Executive Leadership Program, NIDA-Wharton, U.S.A. The Columbia Senior Executive Program, Columbia, U.S.A. Subsidiary Governance, Business and Legal Issues for Directors and Executives and Transformative Leadership for Global Enterprise, 2022, Director’s Legal Liabilities, Ethical Leadership for new Era and High Performing Board & Board Effectiveness, 2021 (In-house Programs by GC), Director Certification Program (DCP), Class 249/2017 and Corporate Governance: The Role of Manager in Supporting Directors, Thai Institute of Directors Association (IOD) Board Member/Management in Listed Company - The Stock Exchange of Thailand : 1 Executive Vice President - Technical, Engineering and Maintenance, PTT Global Chemical Public Company Limited Board Member/Management in Non-Listed Company - The Stock Exchange of Thailand : 1 Director, GC Maintenance and Engineering Company Limited Work Experiences (5-year Past Experiences) 1 Nov 2018 - 29 Dec 2022 Director, PTT Energy Solutions Company Limited 1 Sep 2015 - 30 Jun 2022 Senior Vice President - Technical, Engineering and Maintenance, PTT Global Chemical Public Company Limited 2017 - 2019 Director, PTT Asahi Chemical Company Limited Shareholding : 15,543 Shares (0.000345%) As of 31 December 2023 Relation among Family with other Directors, Management, Major Shareholders of the Company or Subsidiaries : None 382
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