California Transparency in Supply Chains Act Disclosure

Mirum is committed to ensuring that our supply chain reflects the company’s values and respect for human rights and the environment. Mirum’s relationships with suppliers are based on lawful, efficient, and fair practices. We expect our suppliers to obey the laws that require them to treat workers fairly, provide a safe and healthy work environment, and protect environmental quality. In furtherance of this expectation, Mirum obligates its suppliers by contract to comply with all applicable laws and regulations, including those relating to slavery and human trafficking of the country or countries in which they are doing business.