Mr. Thammasak Sethaudom
Director,
Member of the Executive Committee
Date of Appointment:
- June 7, 2023
Education/Training:
- Master of Business Administration, London Business School, United Kingdom (Distinction)
- Bachelor of Engineering, Electrical Engineering, Chulalongkorn University
- Management Development Program, The Wharton School, The University of Pennsylvania, USA
- Advanced Management Program (AMP) Harvard Business School, USA
- Top Executives Course, Capital Market Academy
- National Defence College (NDC) Course, Thailand
Expertise:
- Knowledge of the Company’s business at national or global level
- Knowledge of the related businesses in the Company’s value chain
- Accounting and financial knowledge
- Organizational management for sustainable development in environmental, economic, and social respects
- Risk management and crisis management
- ICT management, innovation and technology management, application of technology for supply chain industry, e-commerce, robotic automation and artificial intelligence
- Domestic and/or foreign market insights
- Geopolitics (particularly China and ASEAN)
- Environmental, Social & Governance (ESG) / Decarbonization
Director Training (2):
- Director Accreditation Program (DAP) 159/2019, Thai Institute of Directors Association
- Director Certification Program (DCP) 298/2020, Thai Institute of Directors Association
Directorship/Executive Positions in Other Listed Companies on the Stock Exchange of Thailand (2):
- Since 2022 : Vice Chairman and Member of the Remuneration Committee, SCG Packaging Public Company Limited
- Since 2023 : Director, The Siam Cement Public Company Limited
- Since 2024 : Member of the CSR Committee for Sustainable Development, Member of the Environmental Sustainability Development Committee, and President & CEO, The Siam Cement Public Company Limited
Directorship/Executive Positions in Other Non-listed Companies/Entities (10):
- Since 2023 : NSTDA Governing Board, National Science and Technology Development Agency
- Since 2024 : Member of the National Science and Technology Development Agency President Performance Subcommittee
- Since 2024 : Member of the Policy and Strategy Subcommittee, National Science and Technology Development Agency
- Since 2024 : Director, SCG Foundation
- Since 2024 : Council Member, Thailand Business Council for Sustainable Development (TBCSD)
- Since 2024 : Advisor to the President of the Chulalongkorn University Engineering Alumni Association
- Since 2024 : Council Member, World Business Council for Sustainable Development (WBCSD)
- Since 2024 : Member, Asia Business Council
- Since 2024 : Council Member, MIT Sloan ASEAN Office Advisory Council
- Since 2024 : Co-Chair, ASEAN Leaders for Just Energy Transition (ASEAN JET), World Economic Forum
- Serve as director in subsidiaries, associates, and other companies of The Siam Cement Public Company Limited that are non-listed as assigned.
5-year Past Experience and/or Remarkable Positions:
- 2004 - 2010 : Business Development and Corporate Planning Director, SCG Chemicals Business
- 2008 - 2012 : Deputy General Director, Long Son Petrochemicals Company Limited
- 2012 - 2018 : General Director, Long Son Petrochemicals Company Limited
- 2018 - 2022 : Vice President - Finance and Investment & CFO, The Siam Cement Public Company Limited
- 2018 - 2022 : Director, SCG Packaging Public Company Limited
- 2019 - 2023 : Director, Thai Listed Companies Association
- 2021 - 2023 : Director, Harvard Business School Association of Thailand (HBSATh)
- 2022 - 2023 : Executive Vice President, The Siam Cement Public Company Limited
Ownership of the Company’s Ordinary Shares (as at December 31, 2025):
- Owned directly : None
- Owned by spouse or minor children : None
Family Relationship among Directors and Executives:
- None
Prohibited Characteristics:
- History of offences against property committed with dishonesty : None
- History of entering into any transaction which may cause conflict of interest against the Company during the past year : None
