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BOARD OF DIRECTORS AND SUB COMMITTEE

MR. CHAINOI PUANKOSOOM

Chairman

Independent Director

Age

75

Starting date of Directorship

  • 13 August 2015

Year(s) of Directorship

  • 10 Years

Education

  • Master of Management (MM), Sasin Graduate Institute of Business Administration, Chulalongkorn University
  • Bachelor Degree in Higher Accounting, California College of Commerce, USA

Training

  • 2025 Unfair Trading Practices and Fiduciary Duties by Baker & McKenzie Ltd.
  • 2025 Human Rights Risk Assessment by Deloitte Touche Tohmatsu Jaiyos Audit Co., Ltd.
  • 2021 Chairman Forum 1/2021 “Chairing a Virtual Board Meeting”
  • 2017 The Role of Chairman in Leading Strategic Risk Oversight
  • 2014 The Role of the Chairman Program (RCP 33/2014)
  • 2011 Financial Institutions Governance Program (FGP 3/2011)
  • 2007 Director Accreditation Program (DAP 63/2007)

Shareholding in Company (As of 31 December 2025)

Director -none-
Spouse/Minor child -none-

Family Relationship with Other Directors and Executives

Director -none-

Spouse/Minor child -none-

Family Relationship with Other Directors and Executives  -none-

Related Experience

Listed Companies

2015 – Present

  • Chairman of the Board of Directors, Independent Director, Tipco Asphalt Plc.

2018 – 2020

  • Vice Chairman, Tipco Asphalt Plc.

2017 – Present

  • Chairman of the Board, Independent Director, Member of Audit Committee, Chairman of Compensation and Nomination Committee and Chairman of Sustainability and Risk Management Committee, Frasers Property (Thailand) Plc.
    (Type of business : Industrial factory and warehouse development for sale and lease)

2016 – Present

  • Independent Director, Chairman of the Audit Committee, Member of the Nomination and Remuneration Committee, Prima Marine Plc.
    (Type of business : Marine transportation and storage of crude oil and petroleum products)

2013 – 2014

  • Chairman of the Board of Directors, IRPC Plc.
    (Type of business : Oil and gas)

2008 – 2010

  • President & Chief Executive Officer, PTT Aromatics & Refining Plc.
    (Type of business : Oil and gas)

2008 – 2010

  • Senior Executive Vice President, PTT Plc.
    (Type of business : Oil and gas)

2007 – 2008

  • President, PTT Aromatics & Refining Plc.
    (Type of business : Oil and gas)

2004 – 2007

  • Executive Vice President, PTT Plc.
    Chief Executive Officer, Rayong Refinery Plc.
    (Type of business : Oil and gas)

1984 – 2004

  • Deputy Managing Director, Thai Oil Plc.
    (Type of business : Oil and gas)

Non-Listed Companies

2021- Present

  • Director, the Education & Public Welfare Foundation
    (Type of business : Nonprofit Organization)

2017 – Present

  • Chairman of the Board of Directors, Araya Land Development Co., Ltd.
    (Type of business : Property Development)

2010 – Present

  • Director, Member of Executive Committee, Member of Risk Management Committee and Member of Business Restructuring Subcommittee, National Power Supply Plc.
    (Type of business : Electricity and Steam Generation and Sales)

2017 – 2022

  • Independent Director, Chairman of the Audit Committee, Sapthip Co., Ltd.
    (Type of business : Ethanol Production)

2011 – 2018

  • Director, The Energy Fund Administration Institute, Ministry of Energy
    (Type of business : Public Organization)

2009 – 2018

  • Director, Petroleum Institute of Thailand
    (Type of business : Nonprofit Organization)
other board of directors