Age: 50 Years Appointed: 1 January 2024 Mrs. Chananchida Wiboonkanarak Executive Vice President - Corporate Strategy Education/Training Master of Engineering (Chemical Engineering), Chulalongkorn University Bachelor of Science (Chemical Engineering), Chulalongkorn University Leadership Development Program (LDP 2), 2015, Sasin Graduate Institute of Business Administration of Chulalongkorn University Leadership Development Program (LDP 2), General Electric, GE, New York, U.S.A. PTT-HBS Leadership Development Program (LDP1), Harvard Business School Campus, Shanghai, The People’s Republic of China 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 267/2018, Thai Institute of Directors Association (IOD) Board Member/Management in Listed Company - The Stock Exchange of Thailand : 1 Executive Vice President - Corporate Strategy, PTT Global Chemical Public Company Limited Board Member/Management in Non-Listed Company - The Stock Exchange of Thailand : 10 Director, GC America Sustainability Corporation Director, PTTGC America LLC Director, PTTGC America Corporation Director, GC Polyols Company Limited Director, GC Ventures America Corporation Director, GC Ventures Company Limited Director, PTTGC International Private Limited Director, AGC Vinythai Public Company Limited Director, Emery Oleochemicals UK Limited Director, Kuraray GC Advanced Materials Company Limited Work Experiences (5-year Past Experiences) 20 Oct 2022 - 16 Jan 2024 Director, GC Marketing Solutions Company Limited 1 Apr 2022 - 1 Jan 2024 Chairperson, PTT MCC Biochem Company Limited 9 Dec 2020 - 1 Jan 2024 Director, PTT Asahi Chemical Company Limited 9 Oct 2019 - 1 Jan 2024 Director, Solution Creation Company Limited 11 Oct 2018 - 1 Jan 2024 Executive Committee Member, HMC Polymers Company Limited 1 Apr 2018 - 31 Dec 2023 Senior Vice President - Strategy, Business Development and Commercial Excellence, PTT Global Chemical Public Company Limited 1 Oct 2019 - 31 Mar 2023 Director, PTT Phenol Company Limited 13 Nov 2019 - 25 Aug 2022 Director, GC Glycol Company Limited 8 Feb 2018 - 31 Mar 2022 Director and Chairperson of the Executive Committee, PTT MCC Biochem Company Limited 15 Oct 2020 - 1 Mar 2022 Director, Vencorex Holding 15 Oct 2020 - 16 Feb 2022 Director, PTTGC International (Netherlands) B.V. 2 Sep 2020 - 16 Feb 2022 Director, NatureWorks LLC 27 Dec 2018 - 22 Dec 2019 Director, GC-M PTA Company Limited 27 Dec 2018 - 22 Dec 2019 Director, Thai PET Resin Company Limited Shareholding : None Relation among Family with other Directors, Management, Major Shareholders of the Company or Subsidiaries : None 380
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