Through Open Channel, employees, managers, customers, suppliers, investors, public authorities and the community can, in a responsible and safe manner, report on specific information regarding suspected compliance infringements and behavior in disagreement with Usiminas' corporate values and the ethical principles set forth in the Code of Ethics and Conduct.

The tool works based on the principles of transparency and impartiality. Those who use Open Channel have their identity preserved and the information received is treated with confidentiality. You can file a complaint through internet (intranet or Usiminas website ), app ( Android and iOs ) (smartphone and tablet) or phone ( 0800 900 9093 ). Our ombudsmen are available 24 hours a day, 7 days a week, 365 days a year. Calls are always free, from anywhere in the country. There is no need to identify yourself, and anonymity is granted.

On this website you can:

• Clarify any personal conduct or procedure(s) in your area of work or the company;
• Make reports, complaints and suggestions; and
• Consult the status of the verification procedure and the final opinion on the report, complaint and suggestion made.