At Suzano, we strive to ensure that our relationships are rooted in the highest standards of ethics, respect, and integrity. Our Code of Ethics and Conduct, which includes mandatory training, is reviewed and updated every two years. The latest update in 2025 was approved by the Board of Directors, reaffirming our global commitments to human rights, integrity, and responsible business practices.

The company's Code of Ethics and Conduct aims to ensure that directors, officers, administrators, managers, shareholders, employees, contractors, suppliers, customers, and other stakeholders—including their subsidiaries and affiliates—adhere to our core ethical principles. These principles guide our business behavior and are shared throughout our network of relationships. The Code covers key areas such as:

• integrity in relationships;
• prevention of harassment and discrimination
• anti-corruption practices and fair competition;
• data protection and confidentiality;
• conflicts of interest, gifts and presents;
• health, safety, and active care;
• diversity, equity, and inclusion;
• sustainable development and transparency.

These commitments are based on international standards and regulatory guidelines relevant to our operations, guiding our behavior across all locations. Key references include the Universal Declaration of Human Rights, the ILO's core principles and conventions, and global standards on anti-corruption, fair competition, data protection, privacy, and integrity in relationships. In terms of regulation, the company adheres to the requirements and recommendations of relevant authorities, such as CVM, BACEN, and SEC, as applicable.

This year, we continued to strengthen the integration of ethical commitments into our business processes, decisions, and relationships. Responsibilities are clearly distributed:

• The Board of Directors and Senior Management define guidelines and ensure global adherence;
• The executive areas incorporate ethical principles into policies, operational processes, and management systems;
• Local leaders oversee daily compliance and foster safe, respectful, and inclusive settings.

We further strengthen the implementation of these commitments within our value chain by incorporating them into partner evaluation criteria, contractual clauses, due diligence procedures, and guidance actions. To support this effort, we have introduced new materials, including the updated Supplier Code of Conduct, the Human Rights Manual, and the Golden Rules, which will guide the entire value chain.

The Ethics and Ombudsman department oversees the enforcement of the Code, actively promotes its ongoing dissemination, and guarantees the availability of independent, accessible, and confidential channels for complaints and claims—strengthening our culture of consistency between words and actions.

To that end, we have policies that support the entire process:

• Ombudsman Policy - POL.00.00006: aims to establish the process and governance standards for the department and the Complaints Channel. It ensures compliance with legal, regulatory, and internal codes and regulations. The policy includes specific procedures to protect whistleblowers and maintain confidentiality of information. It applies to Suzano's directors, officers, managers, shareholders, employees, contractors, suppliers, clients, related parties, entities, and stakeholders.
• Disciplinary Measures Policy - POL.00.00029: establishes the guidelines and defines the principles, concepts, and criteria for disciplinary actions against employees of the company.
• Rules of Procedure of the Conduct Management Committee - MAN.00.00001: This document serves a consultative role, providing an overview of how the area functions and outlining its obligations, duties, and decisions.
• Attendance at Reports of Gender-Based Violence (such as Moral and Sexual Harassment, Harassment, and Discrimination) - PC.00.152: This policy aims to establish guidelines for preventing, identifying, and addressing discriminatory practices related to moral harassment and sexual violence (including sexual harassment and harassment).
• Corporate Human Rights Policy: consolidates Suzano's commitment to respecting and promoting human rights across all operations and throughout the value chain. It aligns with the company's Code of Ethics and Conduct, which directs ethical practices and decision-making, ensuring consistency with corporate values, risk management, and compliance with relevant laws. Further details are available in “Human Rights Management”.

Throughout the year, we made consistent progress in consolidating an ethical and responsible culture. Among the highlights:

Training and engagement

• 84.33% of Suzano employees completed the mandatory training on the Code of Ethics and Conduct under review.
• 100% of the service providers active in our units have completed the Code of Ethics and Conduct training.
• 47 awareness-raising actions (campaigns, safety and culture dialogues, thematic communications, and leadership meetings).
• 18 additional training sessions on topics such as harassment, human rights, anti-corruption, and ethical decision-making for employees and workers in the value chain.

For more information on Suzano's policy commitments for responsible business conduct, visit: https://www.suzano.com.br/suzano/transparencia/compliance.