GC One Report 2023 [EN]

Name - Surname Age Appointed Education Training : Mr. Chatchawalit Dhammasaroj Senior Vice President - Internal Audit : 56 Years : 1 January 2024 : Master of Science in Electrical Engineering at Virginia Polytechnic Institute and State University (VPI&SU) : Master of Business Administration at Chulalongkorn University : Bachelor of Science in Electrical Engineering at Virginia Polytechnic Institute and State University (VPI&SU) : Advanced Certificate Course in Public Administration and Law for Executives at King Prajadhipok’s Institute (Class 14) : Director Certification Program (DCP) (Class 265) at Thai Institute of Directors (IOD) : GC X INSEAD Global Leadership Acceleration Program 2022 (G-LAP) (In-house Programs by GC and INSEAD) : Leadership Development Program (LDP 1/2016 and LDP 2/2017) (In-house Programs by GC and Pacrim) Board member / Management in Listed Company - The Stock Exchange of Thailand : 1 : Senior Vice President - Internal Audit PTT Global Chemical Public Company Limited Board member / Management in Non-Listed Company - The Stock Exchange of Thailand : 1 : Director and Treasure, Vibul Aryuravej Foundation Position in Other Organizations / Institutions : None Work Experiences (5-years past experiences) 16 Jul 2022 - 31 Dec 2023 Vice President - HR Business Partner PTT Global Chemical Public Company Limited 1 May 2021 - 15 Jul 2022 Vice President - HR Management PTT Global Chemical Public Company Limited 16 Apr 2019 - 30 Apr 2021 Vice President - HR Operation and Services PTT Global Chemical Public Company Limited 1 Jan 2017 - 15 Apr 2019 Vice President - General Administration PTT Global Chemical Public Company Limited 2 Feb 2016 - 31 Dec 2016 Division Manager - International Business Planning & Relation PTT Global Chemical Public Company Limited Shareholding : 100,021 Shares (0.002218%) As of 31 December 2023 Relation among Family with other Directors, Management, Major Shareholders of the Company or Subsidiaries : None 399 PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED Form 56-1 One Report 2023

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