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Corporate Governance Policy

The Board of Directors of PTT Global Chemical Public Company Limited aims to promote organizational efficiency in GC and its subsidiaries through responsible business practices, management excellence, corporate resilience, and the principles of good corporate governance, guided by fairness, transparency, and accountability

and strives to foster confidence and maximize value for shareholders, with due regard for the interests of all stakeholders to strengthen organizational capabilities for long-term competitiveness and sustainable growth.

To this end, the Board of Directors has established the following Corporate Governance Policy to serve as guidelines for ethical conduct for all directors, executives, and employees, as follows:

  1. The Board of Directors, executives, and all employees shall actively apply the core pillars of good corporate governance: Creation of Long-term Value, Responsibility, Equitable Treatment, Accountability, Transparency, and Ethics (C R E A T E), to their operations; and fulfill their duties in strict compliance with applicable laws and regulations in every country in which GC invests; and maintain an administrative structure stipulating equitable relations between the Board of Directors, executives, and shareholders.

  2. The Board of Directors shall adhere to international best practices and consistently strengthen GC’s corporate governance in line with such practices in matters relating to shareholder rights, the equitable treatment of shareholders, the roles of stakeholders, disclosure and transparency, and the responsibilities of the Board of Directors.

  3. The Board of Directors shall play a pivotal role in determining GC’s vision, strategies, policies, and key action plans, and ensuring that effective systems are in place for performance monitoring, evaluation, and risk management.

  4. The Board of Directors and executives shall serve as leaders of ethical conduct and role models in adhering to GC Group’s good corporate governance practices.

  5. The Board of Directors and executives shall promote a corporate culture of good corporate governance, uphold their responsibilities to relevant stakeholders, and ensure that a balance between environmental, social, and governance (ESG) considerations, as well as human rights, consumer rights, and fair labor, is taken into consideration in GC’s business activities and operations. They shall also ensure that systems for auditing, monitoring, assessing, and reviewing operations in such contexts are in place.

It is the duty of the Board of Directors, executives, and all employees to fully adhere to the good corporate governance guidelines set forth in the Corporate Governance and Business Code of Conduct Handbook.

Announced January 26, 2026

(Mr. Predee Daochai) Chairman