At Compass Minerals, we recognize the finite availability of the essential minerals that we provide and are committed to the responsible stewardship of our resources. This approach to doing business is consistent with our Core Values and critical to Compass Minerals becoming the best essential minerals company for our customers, employees and shareholders. Two key aspects of this commitment include our corporate sustainability principles and the decision to produce Taking Care of Essentials, a data-driven sustainability report that conforms to the Global Reporting Initiative™ G4 framework. This commitment will drive our business strategies, attract top talent, engage employees and drive shareholder value. Our sustainability platform prioritizes the health and safety of people and the environment, and helps us build trust with our valued stakeholders

• Operate in a manner that protects the health and safety of our workforce and our communities. • Ensure decisions are consistent with a long-term view of sustainability and stewardship. • Recognize the finite nature of the minerals we extract and practice and promote their responsible use. • Apply and reward innovations that maximize the efficient use of resources and minimize emissions, waste and other impacts. • Build strong relationships that enhance our communities. • Deliver real economic value to our shareholders and employees through sustainable growth and disciplined capital allocation. • Act with integrity in our corporate governance practices and maintain the highest ethical business standards. • Support transparency in these efforts through the use of widely recognized reporting standards such as the Global Reporting Initiative™ (GRI) standards.