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Mr. Pongnarin Wanasuwanakul
Chairman of the Executive Committee
Member of the Risk Management Committee
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Mr. Pongnarate Wanasuwankul
Member of the Executive Committee
Member of the Risk Management Committee
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Mrs. Phatcharin Lapharojkij
Member of the Executive Committee
Member of the Nomination, Remuneration and Corporate Governance Committee
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Ms. Laongtip Wanasuwannakul
Member of the Executive Committee
Member of the Nomination, Remuneration and Corporate Governance Committee
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Dr. Sakda Siriphattrasophon
Member of the Executive Committee
Chief Executive Officer (CEO)
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Mr. Thanapat Rattanapitag
Member of the Executive Committee
Chief Operations Officer (COO)
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Ms. Patchara Tongprapi
Member of the Executive Committee
Chief Financial Officer (CFO)

Mr. Pongnarin Wanasuwanakul

Chairman of the Executive Committee
Member of the Risk Management 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
  • Director Leadership Certification Program Class (DLCP) 0/2020
Directorship in other juristic persons/Work Experience
  • Director | Tha Chang Industries Group
  • Director | PPP Green Complex Company Limited
  • Director | PPP Biogas Company Limited

Mr. Pongnarate Wanasuwankul

Member of the Executive Committee
Member of the Risk Management 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
Directorship in other juristic persons/Work Experience
  • Director | Tha Chang Industries Group
  • Director | PPP Green Complex Company Limited
  • Director | PPP Biogas Company Limited

Mrs. Phatcharin Lapharojkij

Member of the Executive Committee
Member of the Nomination, Remuneration and Corporate Governance Committee
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
Directorship in other juristic persons/Work Experience
  • Director | Subsidiaries in ThaChang Green Energy Public Company Limited
  • Director | Tha Chang Industries Group
  • Director | L.S. Mining Company Limited
  • Director | F.D.I. Company Limited
  • Director | B.S. Mining Company Limited (2003)
  • Director | PPP Biogas Company Limited

Ms. Laongtip Wanasuwannakul

Member of the Executive Committee
Member of the Nomination, Remuneration and Corporate Governance Committee
Educational :
  • Master’s degree : Bachelor 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
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

Dr. Sakda Siriphattrasophon

Member of the Executive Committee
Chief Executive Officer (CEO)
Educational :
  • Doctor of Philosophy : Doctor of Philosophy (Development Administration) National Institute of Development Administration
  • Master’s degree : Master of Business Administration, Kasetsart University
  • Bachelor’s Degree : Bachelor of Science, Kasetsart University
Training history of the Thai Institute of Directors Association (IOD):
  • Director Certification Program (DCP) Class 312/2021
Directorship in other juristic persons/Work Experience
  • Independents Scholar | The University of Sydney (Singapore)
  • Associate Professor Business Administration | The Association of Researchers of Thailand
  • Associate Professor Business Administration | College of graduate study in management, Khon Kaen University
  • Director / Project Director/Business Consultant | B.B.holding Company Limited
  • Project Manager/Business Development Manager | Saha-Union Public Company Limited
  • Research and Development Manager / Project Coordinator | Charoen Pokphand Group

Mr. Thanapat Rattanapitag

Member of the Executive Committee
Chief Operations Officer (COO)
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)

Ms. Patchara Tongprapi

Member of the Executive Committee
Chief Financial Officer (CFO)
Educational :
  • Master’s Degree : Master of Business Administration Kasetsart University
  • Bachelor’s Degree : Graduate Accounting Bangkok University
Training history of the Thai Institute of Directors Association (IOD):
  • Strategic CFO in Capital Markets Class 9 Stock Exchange of Thailand
Directorship in other juristic persons/Work Experience
  • Accounting Directors | All Marketing Co., Ltd. Wholesale, and retail Business of consumer goods
  • Country Controller | Walbro (Thailand) Co., Ltd. Engine parts business