To enhance global relationships is not a reason a business engages in business ethics.
Business ethics also known as professional ethics or corporate ethics, examines ethical principles, moral and ethical problems that may arise in a business environment. Enhancing global relationships is not part of a reason to engage in business ethics in business.
To recover a company's image after a notorious business scandal, to avoid the loss of a good corporate image or being sued for misconduct, to enhance stakeholder relations, to act with real commitment, and to build corporate reputation are reasons businesses engage in business ethics.