At Actelion Pharmaceuticals US, Inc. (Actelion), we are committed to conducting our business in an ethical manner and in compliance with all applicable laws, rules and regulations. We value integrity, fairness, and honest and ethical conduct.

We have developed codes of conduct that embody our high ethical standards, and we are committed to operating our business, and conducting our relationships with patients, physicians and stockholders, accordingly. We ask and expect that our employees strictly adhere to these standards.