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Mr. Pongnarin Wanasuwanakul
Chairman of the Executive Committee
Member of the Risk Management and Investment Committee
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Ms. Phatcharin Wanasuwannakul
Member of the Executive Committee
Member of the Nomination, Remuneration, Corporate Governance and Sustainability Committee
Acting of Chief Financial Officer (CFO)
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Mr. Pongnarate Wanasuwankul
Member of the Executive Committee
Member of the Risk Management and Investment Committee
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Ms. Laongtip Wanasuwannakul
Member of the Executive Committee
Member of the Nomination, Remuneration, Corporate Governance and Sustainability Committee
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Mr. Seubtrakul Binthep
Member of the Executive Committee
Chief Executive Officer (CEO)
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Mr. Thanapat Rattanapitag
Member of the Executive Committee
Biomass Chief Operations Officer (COO Biomass)

Mr. Pongnarin Wanasuwanakul

Chairman of the Executive Committee
Member of the Risk Management and Investment Committee
Educational :
  • Master’s degree : Master of Engineering Management, RMIT University, Australia
  • Bachelor’s Degree : Bachelor of Engineering, Prince of Songkla University
Training history of the Thai Institute of Directors Association (IOD) :
  • Director Accreditation Program (DAP) Class 156/2019
  • ESG in the Boardroom: A practical Guide for Board (ESG) Class 10/2025
Directorship in other juristic persons/Work Experience
  • Director | Tha Chang Industries Group
  • Director | PPP Green Complex Company Limited
  • Director | PPP Biogas Company Limited

Ms. Phatcharin Wanasuwannakul

Member of the Executive Committee
Member of the Nomination, Remuneration, Corporate Governance and Sustainability Committee
Acting of Chief Financial Officer (CFO)
Educational :
  • Master’s degree : Master Degree, Strategic Management, University of Nottingham, UK
  • Bachelor’s Degree : Bachelor of Business Administration, Thammasat University
Training history of the Thai Institute of Directors Association (IOD):
  • Director Accreditation Program (DAP) Class 156/2019
  • Board Nomination and Compensation Program (BNCP) Class 11/2021
  • Anti-Corruption : The Practical Guide (ACPG) Class 59/2022
  • Ethical Leadership Program (ELP) Class 29/2023
  • Subsidiary Governance Program (SGP) Class 10/2024
  • ESG in the Boardroom : A Practical Guide for Board (ESG) Class 6/2024
  • Successful Formulation & Execution of Strategy (SFE) Class 49/2025
Directorship in other juristic persons/Work Experience
  • Director | Subsidiaries in ThaChang Green Energy Public Company Limited
  • Director | Tha Chang Industries Group
  • Director | PPP Biogas Company Limited

Mr. Pongnarate Wanasuwankul

Member of the Executive Committee
Member of the Risk Management and Investment Committee
Educational :
  • Master’s degree : Master of Engineering, Asian Institute of Technology (Thai Government Scholarship)
  • Bachelor’s Degree : Bachelor of Engineering (Second-class honors), King Mongkut's Institute of Technology Ladkrabang
Training history of the Thai Institute of Directors Association (IOD):
  • Director Accreditation Program (DAP) Class 156/2019
  • ESG in the Boardroom: A practical Guide for Board (ESG) Class 10/2025
Directorship in other juristic persons/Work Experience
  • Director | Tha Chang Industries Group
  • Director | PPP Green Complex Company Limited
  • Director | PPP Biogas Company Limited

Ms. Laongtip Wanasuwannakul

Member of the Executive Committee
Member of the Nomination, Remuneration, Corporate Governance and Sustainability Committee
Educational :
  • Master’s degree : Master of Business Administration, Asian Institute of Technology (King's Scholarship)
  • Master of Science, CERAM Sophia Antipolis, European School of Business, France (Franco-Thai Scholarship)
  • Bachelor’s Degree : Bachelor of Economics (First Class Honors, Gold Medal), Chulalongkorn University
Training history of the Thai Institute of Directors Association (IOD):
  • Director Accreditation Program (DAP) Class 156/2019
  • Board Nomination and Compensation Program (BNCP) Class 11/2021
  • Subsidiary Governance Program (SGP) Class 10/2024
  • ESG in the Boardroom: A practical Guide for Board (ESG) Class 10/2025
Directorship in other juristic persons/Work Experience
  • Director | Subsidiaries in ThaChang Green Energy Public Company Limited
  • Director | Tha Chang Industries Group
  • Director | PPP Biogas Company Limited

Mr. Seubtrakul Binthep

Member of the Executive Committee
Chief Executive Officer (CEO)
Educational :
  • Mini Master of Business Administration, University of the Thai Chamber of Commerce
  • Bachelor’s Degree : Bachelor of Science , Industrial Physics and Medical Instrumentation, Department of Industrial Physics and Medical Instrumentation, King Mongkut's University of Technology North Bangkok
Training history of the Thai Institute of Directors Association (IOD) :
  • Director Accreditation Program Class 26/2004
  • Financial Statements for Directors Class FSD 27/2015
  • Finance for Non-Finance Directors Program Class FND 14/2004
  • Successful Formulation & Execution of Strategy Class SFE 12/2011
Work Experience :
  • Managing Director | Single Point Parts (Thailand) Public Company Limited
  • Managing Director | Solar and Water Management Co, Ltd.
  • Deputy Managing Director | Mazuma (Thailand) Co., Ltd.

Mr. Thanapat Rattanapitag

Member of the Executive Committee
Biomass Chief Operations Officer (COO Biomass)
Educational :
  • Bachelor’s Degree : Bachelor of Engineering King Mongkut's Institute of Technology Ladkrabang
Directorship in other juristic persons/Work Experience
  • Factory Manager | Thachang Green Energy Company Limited (Energy Business)