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Governance, Risk Management and Business Conduct, Ethics & Compliance

Global Power Synergy Public Company Limited (GPSC) always adheres to the good governance principles as a framework for strategic planning and operations across all economic, social and environmental dimensions, and creating value-added business with all stakeholders to become a global leading power company in innovation and sustainability.

Good Corporate Governance

GPSC is committed to upholding the principles of Good Corporate Governance as the foundation of its business operations and long-term value creation. The Company conducts its business with transparency, accountability, integrity, and ethical standards to foster trust and confidence among shareholders, investors, and all stakeholders.

To ensure effective corporate governance, the Company integrates governance principles into its corporate strategy, Board oversight, risk management, internal control, regulatory compliance, and business operations across the organization. In doing so, the Company considers the impacts of its operations on stakeholders, society, and the environment, while ensuring compliance with applicable laws, regulations, and other relevant requirements. This integrated approach strengthens organizational resilience, enhances transparency and accountability, and supports sustainable business growth and long-term value creation.

GRI 2-23, 2-24, 3-3

The corporate governance management approaches of the company are as follows:

Strategy

GPSC's corporate governance strategy is founded on the principles of transparency, accountability, integrity, and ethical business conduct. The Company aligns its governance framework with the Corporate Governance Code for Listed Companies 2017, applicable laws and regulations, and international best practices to support sustainable value creation.

Key strategic priorities include:

  • Upholding good corporate governance principles across the organization.
  • Promoting ethical business conduct and regulatory compliance.
  • Strengthening Board oversight and management accountability.
  • Embedding governance considerations into strategic decision-making.

Corporate Governance Policies: Link

Process

GPSC implements its corporate governance strategy through a structured governance framework supported by Board oversight, clearly defined governance policies, and continuous monitoring and evaluation.

Key governance practices include:

  • Oversight by the Board of Directors and its committees in accordance with their respective charters.
  • Adoption and implementation of the Corporate Governance Code for Listed Companies 2017.
  • Review and approval of key governance policies and business practices.
  • Annual performance evaluations of the Board of Directors, Board Committees, and individual directors.
  • Continuous enhancement of governance practices through benchmarking and external assessments.
Monitoring and Disclosure

GPSC maintains effective governance information management processes and regularly reports governance matters to the Board of Directors and relevant Board Committees. The Company ensures timely, accurate, and transparent disclosure of material corporate information in compliance with the requirements of the Securities and Exchange Commission (SEC), the Stock Exchange of Thailand (SET), and other applicable laws and regulations.

GRI 2-13, 3-3

GPSC has established a comprehensive corporate governance framework to ensure effective oversight, accountability, transparency, and sustainable value creation. The framework defines the roles and responsibilities of the Board of Directors, Board Committees, management, and independent oversight functions, supporting sound decision-making and effective governance across the organization. For further information, please refer to the Roles and Responsibilities of the Board.

Governance Oversight

The Board of Directors provides overall oversight of the Company's corporate governance and is supported by 4 Board Committees, each overseeing specific aspects of the Company's governance framework. For an overview of the Company's governance structure, please refer to the Organization Chart.

  • Audit Committee (Charter: Link)
  • Nomination and Remuneration Committee (Charter: Link)
  • Risk Management Committee (Charter: Link)
  • Corporate Governance and Sustainability Committee (Charter: Link)
Governance Documents

GPSC conducts its business in accordance with the Corporate Governance Code for Listed Companies 2017 (CG Code) issued by the Securities and Exchange Commission (SEC) of Thailand. The Company applies the CG Code as the foundation of its corporate governance practices, promoting transparency, accountability, ethical business conduct, and sustainable value creation.

The Board of Directors regularly reviews the Company's corporate governance practices to ensure alignment with the 8 principles of the CG Code, while continuously enhancing governance practices in line with evolving regulatory requirements and international best practices.

GRI 2-9
Board Governance

The Board of Directors is responsible for providing strategic direction, overseeing management, and ensuring that the Company's business is conducted in accordance with good corporate governance principles. The Board performs its duties with integrity, independence, accountability, and transparency to create sustainable value for shareholders and all stakeholders.

The Company has established governance processes covering the composition, nomination, development, and performance evaluation of the Board to ensure that the Board collectively possesses the appropriate knowledge, skills, experience, and diversity required to effectively oversee the Company's long-term strategy and sustainable growth.

GRI 2-9
Composition of the Board of Directors

The Company has a one-tier system board structure. The Board of Directors has established the nomination criteria, considering the diversity in the selection process, including skills, experience, gender, age, competence, and specific characteristics necessary for achieving the objectives and culture of the organization by establishing the Board Skills Matrix. Moreover, at least 1 - 2 independent non-executive directors must have experience in electricity, utilities, as well as related businesses.

(More details of the Board of Directors' structure and the Qualifications of Independent Directors)

GRI 2-9, 2-10
Nomination and Appointment of the Board of Directors

The Board of Directors has appointed the Nomination and Remuneration Committee to nominate and scrutinize appropriate persons to be appointed as directors of the Company based on proposals of major and minor shareholders, including the list of directors and Directors' Pool of trusted entities, which are databases of directors who have compiled a list of qualified persons in various fields, and then the Nomination and Remuneration Committee will consider the qualifications of directors on various issues in accordance with the criteria set by the Company and present them to the Board of Directors' meeting and the AGM for further approval.

In the nomination of directors, the Board of Directors has established the criteria for nomination with a focus on transparency, considering the diversity of director qualifications, in terms of independence, knowledge, skills, experience, expertise, and diversity are deliberately included in the nomination process to promote and leverage the diversity of our board of director in terms of gender, race, nationality, religion, age, cultural background, or other differences, as the Company values its views, participation, and non-discrimination. The Board of Directors has established the table of board's knowledge and expertise elements (Board Skills Matrix) to ensure that the composition of the board as a whole is appropriate and complete as necessary to achieve the main objectives and goals of the organization, able to meet the needs of stakeholders. As a result, the composition of the current committee complies with international laws and principles of good corporate governance as the detail below.

GRI 2-18, 3-3
Board Performance Evaluation

The Board of Directors conducts an annual performance evaluation covering the Board, individual directors, and Board Committees to assess the effectiveness of its governance and oversight. In addition, an independent Board performance assessment is conducted by an external consultant at least once every three years. The evaluation results are used to continuously enhance the effectiveness of the Board and strengthen the Company's corporate governance practices.

For further details on the Board performance evaluation process, methodology, and results, please refer to the Company's latest 56-1 One Report (Annual Report).

GRI 2-17

GPSC recognizes that an effective Board requires an appropriate combination of knowledge, experience, expertise, and continuous development to effectively oversee the Company's strategy, business operations, and long-term sustainable value creation. The Company regularly reviews the collective competencies of the Board through the Board Skills Matrix and promotes continuous director development to ensure the Board remains equipped to address emerging business challenges, regulatory developments, and evolving stakeholder expectations.

Board Skills Matrix

The Company applies a Board Skills Matrix to assess the collective competencies of the Board and identify the knowledge, experience, and expertise required to effectively oversee the Company's business strategy, governance, risk management, sustainability, and long-term value creation. The Board Skills Matrix also supports Board succession planning and future director appointments.

SKILL / EXPERTISE
CORE SKILLS SPECIFIC SKILLS EXPERIENCE
NAME-SURNAME DIRECTOR POOL POLICY DEVELOPMENT BUSINESS JUDGMENT STRATEGIC PLANNING FINANCE& ACCOUNTING INTERNAL AUDIT LAW CORPORATE GOVERNANCE&CSR RISK MANAGEMENT&INTERNAL CONTROL HR & ORGANIZATION DEVELOPMENT POWER INDUSTRY EXPERTISE* INTERNATIONAL BUSINESS INNOVATION MANAGEMENT MANAGEMENT = M
ACADEMIA = A
CONSULTING = C
RESEARCH = R
1. Prof. Dr. Supot Teachavorasinskun / / / / / / M, A
2. Gen. Prachaphat Vatchanaratana / / / / / / / / / M, A
3. Mrs. Nicha Hiranburana Thuvatham / / / / / / M, A
4. Mr. Thitivut Ngernklay / / / / / / / / / M, A
5. Mr. Sarawut Kaewtathip / / / / / / / / M, A
6. Mr. Distat Hotrakitya / / / / / / / / M, A
7. Assistant Professor Dr. Pareena Srivanit / / / / / / / / / M, A
8. Mr. Somsak Anuntawat / / / / / / / / / / / M, A
9. Mr. Buranin Rattanasombat / / / / / / / / / M, A
10. Mr. Prasong Intaranongpai / / / / / / / M, A
11. Mr. Pongpun Amornvivat / / / / / / / / M, A
12. Mr. Rathakorn Kampanathsanyakorn / / / / / / / / / / M, A
13. Mr. Bandhit Thamprajamchit / / / / / / / / / / M, A
14. Mr. Pornsak Mongkoltrirat / / / / / / / / / M, A
15. Mr. Worawat Pitayasiri / / / / / / / / / / / / M, A
Total 15 14 15 8 5 8 13 15 13 10 6 9

Remark: *Expertise in the electrical industry, which complies with the Global Industry Classification Standard (GICS) in the electrical industry business category.
(GPSC's Board Skill Matrix, as of July 31, 2026)

Industrial experience of GPSC’s Directors as of July 31, 2026
GRI 2-9, 2-11
NAME SURNAME POSITION WORK EXPERIENCE
1. Professor Dr. Supot Teachavorasinskun		 Chairman of the Board / Independent Director (Non-Executive Director)

Date Appointed: April 3, 2024 (1st Term)

Professor Dr. Supot Teachavorasinskun has extensive experience in corporate governance within the energy industry, having served as Chairman of the Board of Directors of Thai Oil Public Company Limited and Independent Director of PTT Public Company Limited. He also possesses extensive expertise in engineering and organizational management through his tenure as Dean of the Faculty of Engineering at Chulalongkorn University.

Work Experiences

  • 2020 - 2024: Independent Director (Non-Executive) and Chairman of the Board, Thai Oil Public Company Limited
  • 2018 - 2020: Independent Director, PTT Public Company Limited
  • 2016 - 2024: Dean, Faculty of Engineering, Chulalongkorn University
2. Gen. Prachaphat Vatchanaratana		 Independent Director / Chairman of the Corporate Governance and Sustainability Committee (Non-Executive Director)

Date Appointed: April 1, 2026 (2nd Term) / March 31, 2023 (1st Term)

Gen. Prachaphat Vatchanaratana has extensive experience in corporate governance, audit, risk management, and legal affairs, gained through senior leadership positions within the military justice system, including serving as Chief Justice of the Military Supreme Court and Head of the Military Judiciary Office, Judge Advocate General's Department. He currently serves as an Independent Director, Chairman of the Corporate Governance and Sustainability Committee of the Company, contributing to the oversight of corporate governance, risk management, and legal and regulatory compliance.

Work Experiences

  • 2019 - 2022: Judge advocate general, The Judge Advocate General's Department
  • 2018 - 2019: Chef, military judicial office, The Judge Advocate General's Department
3. Mrs. Nicha Hiranburana Thuvatham		 Independent Director / Chairman of the Audit Committee (Non-Executive Director)

Date Appointed: April 3, 2024 (3rd Term) / April 2, 2021 (2nd Term) / April 3, 2018 (1st Term)

Mrs. Nicha Hiranburana Thuvatham has extensive experience in public administration, public policy, and corporate governance, gained through senior leadership positions at the Office of the Prime Minister, including serving as Deputy Secretary-General to the Prime Minister for Administration, Senior Expert at the Office of the Prime Minister, and Advisor to the Prime Minister for Civil Service Affairs. She currently serves as an Independent Director and Chairman of the Audit Committee of the Company, supporting the Company's corporate governance, audit oversight, and risk management.

Work Experiences

  • 2025: Advisor to the Prime Minister
  • 2024: Senior Experts of the Office of the Prime Minister
  • 2016: Deputy Secretary-General to the Prime Minister for Administrative Affairs, Secretariat of the Prime Minister Office of the Prime Minister Deputy Director, Prime Minister Delivery Unit
  • 2015: Assistant Secretary-General to the Prime Minister
  • 2010 - 2014: Advisor to the Prime Minister on Social, Secretariat of the Prime Minister
4. Mr. Distat Hotrakitya		 Independent Director / Chairman of the Nomination and Remuneration Committee / Member of the Risk Management Committee (Non-Executive Director)

Date Appointed: April, 4, 2025 (2nd Term) / September 1, 2024 (1st Term)

Mr. Distat Hotrakitya has extensive experience in corporate governance, legal affairs, and risk management, gained through senior leadership positions, including serving as Secretary-General to the Prime Minister, Advisor to the Prime Minister, and Independent Director and Chairman of the Corporate Governance and Sustainability Committee of Thai Oil Public Company Limited. He currently serves as an Independent Director, Chairman of the Nomination and Remuneration Committee, and a member of the Risk Management Committee of the Company, supporting the Company's corporate governance and risk management.

Work Experiences

  • 2023 - 2024: Independent Director (Non-Executive) / Chairman of the Corporate Governance and Sustainability Committee, Thai Oil Public Company Limited
  • 2022 - 2023: Advisor to The Prime Minister
  • 2019 - 2022: Secretary - General to the Prime Minister
5. Mr. Sarawut Kaewtathip		 Independent Director / Member of the Audit Committee (Non-Executive Director)

Date Appointed : April 3, 2024 (1st Term)

Mr. Sarawut Kaewtathip has extensive experience in the governance and management of the energy business, gained through serving as Director-General of the Department of Energy Business and Director-General of the Department of Mineral Fuels. He has also served as a Director and member of the Risk Management Committee of PTT Global Chemical Public Company Limited, a Director of PTT Public Company Limited, and a Director of the Malaysia-Thailand Joint Authority (MTJA). His experience supports the Company's governance of its energy and utilities businesses.

Work Experiences

  • 2020 - 2024: Board Members and Risk Management Committee, PTT Global Chemical Public Company Limited
  • 2019 - 2024: Director General, Department of Mineral Fuels
  • 2019 - 2024: Board Members, Malaysia-Thailand Joint Authority (MTJA)
  • 2019 - 2020: Board Members, PTT Public Company Limited
  • 2019: Deputy Permanent Secretary, Office of the Permanent Secretary, Ministry of Energy
  • 2018 - 2019: Board Members and Risk Management Committee, PTT Oil and Retail Business Company Limited
6. Mr. Thitivut Ngernklay		 Independent Director / Member of the Corporate Governance and Sustainability Committee (Non-Executive Director)

Date Appointed : April 1, 2026 (1st Term)

Mr. Thitivut Ngernklay has extensive experience in the electricity and utilities sector, having held several senior executive positions at the Metropolitan Electricity Authority (MEA), including Deputy Governor for Transmission System Operations, Assistant Governor for Transmission System Operations, and Project Management Director. His expertise in power systems, infrastructure, and the management of large-scale utility operations supports the Company's governance of its electricity and utility businesses.

Work Experiences

  • 2023 - 2025: Deputy Governor, Transmission System Operations, Metropolitan Electricity Authority (MEA)
  • 2022 - 2023: Assistant Governor (Transmission System Operations), Metropolitan Electricity Authority (MEA)
  • 2022: Director, Project Management Department, Metropolitan Electricity Authority (MEA)
  • 2020 - 2022: Director, Asset Management and Security Department, Metropolitan Electricity Authority (MEA)
7. Assistant Professor Dr. Pareena Srivanit		 Independent Director / Member of the Audit Committee (Non-Executive Director)

Date Appointed: April 4, 2025 (1st Term)

Assistant Professor Dr. Pareena Srivanit has extensive experience in legal affairs, corporate governance, risk management, and audit, gained through serving as Dean of the Faculty of Law at Chulalongkorn University, as well as Independent Director and Audit Committee member. Her experience supports the Company's corporate governance, risk management, and legal and regulatory compliance oversight.

Work Experiences

  • 2017 - 2025: Dean and Lecturer, Faculty of Law, Chulalongkorn University
  • 2024 - 2025: Independent Director, Member of Audit and Governance Committee, Member of Nomination and Compensation Committee, Thai Eastern Bio Power Company Limited
  • 2022 - 2025: Independent Director, Member of the Audit and Risk Committee, and Member of the Corporate Governance and Sustainable Development Committee, Intouch Holding Public Company Limited
  • 2021 - 2022: Independent Director, Thaicom Public Company Limited
8. Mr. Somsak Anuntawat		 Director / Member of the Corporate Governance and Sustainability Committee (Non-Executive Director)

Date Appointed: April 1, 2026 (2nd Term) / December 1, 2025 (1st Term)

Mr. Somsak Anuntawat has extensive experience in public finance, taxation, and public policy, gained through senior executive positions at the Revenue Department, including serving as an advisor on tax collection strategy for the energy sector. He also has extensive corporate governance experience through serving as a director of government agencies and state-owned enterprises. His experience supports the Company's financial oversight, risk management, and corporate governance.

Work Experiences

  • 2025 - 2026: Director, Government Pharmaceutical Organization
  • 2022 - 2026: Principal Advisor on Strategic Tax Administration (Energy Industry), The Revenue Department
  • 2024 - 2025: Director, PTT International Trading Company Limited
  • 2022 - 2025: Director, The Erawan Group Public Company Limited
  • 2022 - 2024: Director, The Zoological Park Organization of Thailand
  • 2019 - 2022: Deputy Director-General, The Revenue Department
9. Mr. Buranin Rattanasombat		 Director / Chairman of the Risk Management Committee (Non-Executive Director)

Date Appointed: April 1, 2026 (2nd Term)/ September 1, 2024 (1st Term)

Mr. Buranin Rattanasombat has extensive experience in corporate strategy, innovation, sustainability, and new business development, gained through senior executive positions at PTT Public Company Limited. He has also overseen companies within PTT's future business portfolio, providing him with extensive practical expertise in identifying new business opportunities, leveraging innovation, and developing businesses to support the energy transition and address the evolving energy landscape.

Work Experiences

  • 2020 - 2024: Director, Thai Oil Public Company Limited
  • 2021 - 2024: Member of the Risk Management Committee, Thai Oil Public Company Limited
  • 2021 - 2024: Chairman, Innobic (Asia) Company Limited
  • 2022 - 2024: Chairman, Nuovo Plus Company Limited
  • 2021 - 2024: Director / Member of the Enterprise Risk Management Committee, PTT Oil and Retail Business Public Company Limited
  • 2021 - 2022: Senior Executive Vice President, Innovation and New Ventures, PTT Public Company Limited
  • 2021: Chairman, Nutra Regenerative Protein Company Limited
  • 2020 - 2021: Member of the Nomination and Remuneration Committee, Thai Oil Public Company Limited
  • 2020 - 2021: Senior Executive Vice President, Downstream Business Group Alignment, PTT Public Company Limited
  • 2019 - 2020: Senior Executive Vice President, Corporate Strategy, Innovation and Sustainability and Chief Transformation Officer (CTO), PTT Oil and Retail Business Company Limited)
  • 2019 - 2020: Chairman, Thai Petroleum Pipeline Co., Ltd.
  • 2019 - 2020: Chairman, PTT (Cambodia) Limited
  • 2018 - 2020: Secretary General, Marketing Association of Thailand (MAT)
10. Mr. Prasong Intaranongpai		 Director / Member of the Nomination and Remuneration Committee (Non-Executive Director)

Date Appointed : April 1, 2026 (2nd Term) / October 1, 2025 (1st Term)

Mr. Prasong Intaranongpai has extensive experience in downstream petroleum business management, corporate strategy, and new business development, gained through senior executive positions at PTT Public Company Limited. His responsibilities included leading the strategic direction of PTT's downstream petroleum business, formulating corporate strategy, and driving business expansion into new energy-related ventures. This experience has equipped him with extensive expertise in energy business management and long-term value creation.

Work Experiences

  • 2024 - 2025: Director / Member of the Risk Management Committee, Thai Oil Public Company Limited
  • 2023 - 2025: SEVP Downstream Business Group Alignment, PTT Public Company Limited
  • 2023: EVP Acting Senior Executive Vice President Downstream Business Group Alignment, PTT Public Company Limited
  • 2022 - 2025: Director, GPC International Terminal Company Limited
  • 2022 - 2024: Director / Member of the Risk Management Committee, IRPC Public Company Limited
  • 2022: EVP Acting SEVP Downstream Business Group Alignment, PTT Public Company Limited and assigned to work for ARUN PLUS Company Limited
  • 2022: Chairman, Sport Services Alliance Company Limited
  • 2022: Director, NUOVO PLUS Company Limited
  • 2021 - 2022: Director, Alpha Com Company Limited
  • 2021 - 2022: Chairman, PTT Raise Company Limited
  • 2021 - 2022: Director, Global Renewable Power Company Limited
  • 2021 - 2022: Chairman, EVME PLUS Company Limited
  • 2021 - 2022: EVP, New Venture Development, PTT Public Company Limited and Assigned to work for Arun Plus Company Limited
  • 2020 - 2021: Director, PTT Energy Resources Company Limited
  • 2020 - 2021: Chairman, PTT Global Management Company Limited
  • 2019 - 2022: Director, Sport Services Alliance Company Limited
11. Mr. Bandhit Thamprajamchit		 Director / Member of Nomination and Remuneration Committee (Non-Executive Director)

Date Appointed: April 3, 2024 (2nd Term) / February 1, 2023 (1st Term)

Mr. Bandhit Thamprajamchit has extensive executive experience across the petroleum and natural gas value chain, spanning upstream petroleum and natural gas, refining, and petrochemical businesses. He has held senior executive positions at PTT Public Company Limited and served as President and Chief Executive Officer of Thai Oil Public Company Limited. This experience has provided him with extensive practical expertise in operations management, production, and business management across the entire energy value chain.

Work Experiences

  • 2025: CEO and President and Acting EVP - Corporate Governance and Sustainability, Thai Oil Public Company Limited
  • 2024: CEO and President and Acting EVP - Corporate Governance and Affairs, Thai Oil Public Company Limited
  • 2023 - 2026: Director (Executive) / Member of the Risk Management Committee / CEO and President and Acting Executive Vice President-Corporate Governance and Sustainability / Secretary to the Board of Directors, Thai Oil Public Company Limited
  • 2023: Acting SEVP - Hydrocarbon and Acting Executive Vice President - Manufacturing, Thai Oil Plc
  • 2023: Acting Managing Director, LABIX Co., Ltd.
  • 2021 - 2022: SEVP - Hydrocarbon and Acting Executive Vice President - Manufacturing, Thai Oil Plc
12. Mr. Rathakorn Kampanathsanyakorn		 Director / Member of Corporate Governance and Sustainability Committee (Non-Executive Director)

Date Appointed: October 1, 2025 (1st Term)

Mr. Rathakorn Kampanathasanyakorn has extensive experience in corporate strategy, sustainability management, and downstream petroleum business, gained through senior executive positions at PTT Public Company Limited and as Senior Executive Vice President, Corporate Strategy of Thai Oil Public Company Limited. His experience includes corporate direction setting, business strategy integration, and sustainability management. This experience has provided him with extensive expertise in corporate strategy, business transformation, and sustainable value creation.

Work Experiences

  • 2025: Director / Member of the Nomination and Remuneration Committee IRCP Public Company Limited
  • 2021 - 2024: Executive Vice President, PTT, working on a secondment as Senior Executive Vice President, Corporate Strategy, Thai Oil Public Company Limited
  • 2018 - 2021: Executive Vice President, Downstream Business Group Planning, PTT Public Company Limited
13. Mr. Pongpun Amornvivat		 Director (Non-Executive Director)

Date Appointed : February,1, 2026 (1st Term)

Mr. Pongpun Amornvivat has extensive expertise in natural gas business management, LNG trading, and international energy trading, gained through senior executive positions at PTT Public Company Limited. His responsibilities included overseeing the natural gas business, international energy trading, and commercial energy operations. This experience has provided him with extensive expertise in the energy value chain, energy market dynamics, and international energy business management, supporting the Company's strategic direction and business oversight.

Work Experiences

  • 2025 - 2026: Director and Director to the Risk Management Committee, PTT Global Chemical Public Company Limited
  • 2025 - 2026: Director, PE LNG Company Limited
  • 2025 - 2026: Chairman, PTT Natural Gas Distribution Company Limited
  • 2024 - 2026: Senior Executive Vice President, Gas Business Unit, PTT Public Company Limited
  • 2024 - 2025: Director and Member of the Risk Management Committee, IRPC Public Company Limited
  • 2023 - 2024: Senior Executive Vice President, International Trading Business Unit, PTT Public Company Limited
  • 2023 - 2024: Chairman, PTT International Trading Pte. Ltd
  • 2022 - 2024: Director, PTT Global LNG Co., Ltd
  • 2021 - 2023: Director, PTT International Trading Pte. Ltd
  • 2021 - 2023: Director, PTT International Trading London Ltd
  • 2021 - 2022: Executive Vice President, International Trading, PTT Public Company Limited
  • 2021: Director and Member of the Corporate Governance Committee, Global Power Synergy Public Company Limited
14. Mr. Pornsak Mongkoltrirat		 Director / Member of Corporate Governance and Sustainability Committee (Non-Executive Director)

Date Appointed: January 1, 2026 (1st Term)

Mr. Pornsak Mongkoltrirat has extensive experience in petrochemical business management and manufacturing operations, gained through senior executive positions at PTT Global Chemical Public Company Limited. His responsibilities included overseeing the polymer business, driving operational excellence, and managing corporate functions through the Center of Excellence, as well as overseeing subsidiaries within the petrochemical business. This experience has provided him with extensive expertise in manufacturing operations, operational excellence, and business management in the petrochemical industry.

Work Experiences

  • 2023 - 2024: Chairman, GC Logistics Solutions (Vietnam) Company Limited
  • 2023: Managing Director, GC Logistics Solutions Company Limited
  • 2022 - 2023: Chairman, Solution Creation Company Limited
  • 2022 - 2024: Director, Thai PET Resin Company Limited
  • 2022 - 2024: Director, GC-M PTA Company Limited
  • 2021 - 2022: Director, Solution Creation Company Limited
  • 2020 - 2024: Chairman of the Executive Committee, PTT Asahi Chemical Company Limited
  • 2020 - 2024: Chairman, Revolve Group Limited
  • 2020 - 2022: Director, Revolve Group Limited
  • 2020 - 2024: Director, Dynachisso Thai Company Limited
  • 2020 - 2024: Executive Vice President -Polymers, PTT Global Chemical Public Company Limited
  • 2020 - 2024: Chairman, ENVICCO Limited
  • 2019 - 2024: Executive Committee Member, HMC Polymers Company Limited
  • 2019 - 2024: Chairman, PL Global Transport Company Limited
  • 2019 - 2023: Chairman, GC Logistics Solutions Company Limited
15. Mr. Worawat Pitayasiri		 Director / Secretary to the Board / Member of the Risk Management Committee / Chief Executive Officer (Executive Director)

Date Appointed: April 3, 2024, (3rd Term) / April 2, 2021, (2nd Term) / December 1, 2020 (1st Term)

Mr. Worawat Pitayasiri has extensive experience in energy and utilities business management, gained through senior executive positions at PTT Public Company Limited and as Chief Executive Officer of Global Power Synergy Public Company Limited. His responsibilities included corporate strategy, business development, and the management of the power and utilities businesses. This experience has provided him with extensive expertise in corporate strategy, energy business management, and business growth in response to the evolving energy landscape.

Work Experiences

  • 2023 - 2025: Chairman of the Innovation and Initiative Committee Chulalongkorn University Alumni Association
  • 2023 - 2025: Committee, Chulalongkorn University Alumni Association, under the Royal Patronage of His Majesty the King
  • 2021 - 2022: Director, Avaada Energy Private Limited
  • 2021 - 2024: Director, Global Renewable Power Company Limited
  • 2020 - 2025: Director, Director of the Risk Management Committee and President and Chief Executive Officer, Global Power Synergy Public Company Limited
  • 2020 - 2025: Director, Glow Group
  • 2020 - 2021: Advisory to the Board of Director, Alpha Com Company Limited
  • 2020: Director, Alpha Com Company Limited
  • 2020: Chairman, PTT RAISE Company Limited
Director Development

GPSC recognizes that continuous learning is essential to maintaining an effective Board of Directors. The Company supports directors in continuously enhancing their knowledge and competencies through ongoing development programs, enabling them to provide informed oversight and strategic guidance in response to evolving business, regulatory, sustainability, and technological developments.

Key Development Areas:

  • Corporate Governance and Regulatory Updates
  • Risk Management and Internal Control
  • Sustainability and Climate Change
  • Cybersecurity, Digital Technology, and Artificial Intelligence
  • Energy Industry Trends and Emerging Technologies

For details of directors' training and development activities during the year, please refer to the latest 56-1 One Report (Annual Report) and related information available on the GPSC website.

GRI 2-19, 2-20

GPSC recognizes that effective executive leadership is fundamental to achieving long-term sustainable growth. The Board of Directors oversees executive performance, remuneration, and CEO succession planning to ensure leadership accountability, business continuity, and alignment with the Company's long-term strategy and stakeholder interests.

Executive Performance & Remuneration

GPSC adopts a performance-based executive remuneration framework to align executive incentives with the Company's long-term strategy, sustainable value creation, and shareholders' interests. Chief Executive Officer is evaluated annually based on a balanced set of financial and non-financial Key Performance Indicators (KPIs), approved by the Board of Directors upon the recommendation of the Nomination and Remuneration Committee. Financial performance indicators include measures such as EBITDA, Return on Invested Capital (ROIC), and Economic Value Added (EVA), reflecting the Company's focus on long-term value creation and efficient capital allocation. Non-financial performance indicators encompass strategic, operational, stakeholder, and organizational objectives to support sustainable business growth.

GRI 2-19
Long-term Incentive and Clawback Provision

Global Power Synergy Public Company Limited (GPSC Group) Longest operating performance 1 Year in the variable remuneration assessment of the President and Chief Executive Officer While the maximum entitlement period is 4 years, the company has a clawback provision, the GPSC group cites the clawback provision under Section 85. of the Public Limited Companies Act B.E. 2535 ("Public Companies Act") and Section 89/7 of the Securities and Exchange Act B.E. 2551 (2008), which requires directors and executives to perform their duties responsibly in accordance with the law, objectives and regulations of the Company. In the event that any director or executive does not act in any way or fail to comply with the law, objectives and regulations of the Company and that caused any damage to the Company, the Company will claim for damages from such directors or executives and they may receive civil and/or criminal penalties under the law.

Management Shareholding

GPSC encourages executives to hold Company shares to foster long-term commitment, strengthen alignment with shareholders' interests, and reinforce accountability for sustainable value creation. Executive shareholding is conducted in compliance with applicable laws, regulations, and the Company's policies on securities trading and insider information.

For further information on management shareholding, please refer to the SustainabilityPerformance Data (Link).

Updated as of July 2026

The content above is based on sustainability reporting standards by The Global Reporting Initiative (GRI Standards) and externally validated and verified for accuracy of the reporting data at "Limited Assurance" level.