Sustainability Development Structure

The Company adopts a one-tier board structure, comprising four sub-committees responsible for overseeing business operations to ensure compliance with applicable laws, the Company’s objectives, Articles of Association, and resolutions of shareholders’ meetings. This is carried out under established Board practices, which are regularly reviewed and updated to align with the current business environment and principles of good corporate governance. The Board consists of a total of 12 directors, with diverse qualifications. The composition of the Board and its sub-committees is as follows:

Board of Directors

Gender

Male 10 Person

Female 2 Person

Nationality / Ethnicity

Thai

10 Person

Japanese

2 Person

Board Qualification

Executive 1 Person

Non-Executive 11 Person

Independent Director 4 Person

Non-Independent Director 8 Person

Qualifications of the Chairman of the Board

Independent

Not being managing director/former managing directo

Not an executive/former executive

The tenure for the Board of Directors Years’ Experience Year

Sub-committees

Sub-committees	Categorized by characteristics	Duties and Responsibilities
Executive Committee (Total 5 persons)	Non-Executive Director of 4 persons Executive Director of 1 person Non-Independent Director of 5 persons Male 4 persons Female 1 persons	Supervise the Managing Director’s performance in accordance with the policies and strategies stipulated by the Board of Directors, as well as provide advice to the Managing Director. Supervise feasibility studies for new projects as well as consider approving various projects. Has the authority to approve any juristic acts which are binding on the Company, in the amount not exceeding 50 million Baht under the policy and strategy framework by the Board of Directors. Perform other tasks as assigned by the Board of Directors.
Audit Committee (Total 3 persons)	Non-Executive Director of 3 persons Independent Director of 3 persons Male 3 persons	Review the Company’s financial reports for accuracy and adequate disclosure. Review the internal control system and internal audit of the company. Consider the disclosure of the information in case of connected transactions or transactions that may cause conflicts of interest to be accurate, complete, and timely.
Risk Management, Corporate Governance and Sustainability Committee (Total 5 persons)	Non-Executive Director of 4 persons Executive Directors of 1 person Independent Director of 2 persons Non-Independent Director of 3 persons Male 3 persons Female 2 persons	Consider policies, strategies, and risk management plans. Monitor and control overall risk management at an acceptable level. Supervise the performance of the Board of Directors as well as the management according to the principles of good corporate governance. Review the corporate governance policy and the corporate governance manual and code of conduct for business operations. Follow up on policy compliance through complaints channels. Supervise operations; provide advice and recommendations for corporate sustainability development. Covers Environmental, Social and Governance (ESG) including climate change management. Supervision and Advisory on Organizational Sustainability: 1) Climate Change: Including the management of greenhouse gas emissions from business processes. 2) Human Rights: Respecting the rights of stakeholders. 3) Occupational Health, Safety, and Work Environment: Ensuring workplace safety and well-being. 4) Information Technology and Cybersecurity: Maintaining data integrity and protecting against cyber threats.
Nomination and Remuneration Committee (Total 4 persons)	Non-Executive Director of 4 persons Independent Director of 2 persons Non-Independent Director of 2 persons Male 4 persons	Recruiting people for the positions of the Board of Directors and Managing Director. Propose opinions on compensation management and other benefits for the Board of Directors, Sub-Committees and Managing Director.

Note : Details of the Sustainability Governance Structure are disclosed in the Company’s 2025 Form 56-1 One Report, available on the Company’s website at the following link Form 56-1 One Report 2025 | TTW

Sustainability Development Committee

The Company has established a Sustainability Development Committee, responsible for managing sustainability initiatives within the organization. The Committee comprises the Managing Director, Deputy Managing Director, and Department Directors. Its operations are conducted under the supervision of the Risk Management, Corporate Governance, and Sustainability Committee.

In addition, the Company has appointed a Sustainability Working Team, consisting of Section Managers and Department Managers from various units. This team is tasked with implementing the sustainability policies and measures assigned by the Sustainability Development Committee, translating them into concrete actions across all areas of the Company’s business operations.

Note: The Legal and Corporate Governance Department operates under the Office of the Managing Director.

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