The United States Steel Corporation’s Code of Ethical Business Conduct (Code) applies to all of us — directors, officers, and full-time and part-time employees of U. S. Steel. Throughout the Code, when we refer to employee or employees, we also mean directors and officers. In addition to this Code, we are required to comply with all applicable U. S. Steel policies, procedures, plant work rules and plant rules of conduct. Failure to follow them subjects us to disciplinary action, up to and including suspension or discharge.