2021 CORPORATE RESPONSIBILITY REPORT I 10 Stakeholder engagement Through our materiality assessment, we engaged with a variety of internal and external stakeholders to ensure that we gained a balanced perspective on the relative importance of different ESG topics. Our approach to stakeholder engagement is designed to be ongoing, inclusive, strategic, and actionable by gathering feedback and responding to the issues that matter most to our stakeholders. Understanding and prioritizing these issues enables us to focus our efforts on creating and enhancing value for our business and within our communities. Stakeholder Group Engagement Patients/Consumers Patients and consumers regularly provide feedback through surveys, our website, and social media channels. The feedback addresses our services and steps we can take to improve them. We also communicate regularly with our stakeholders through email communications and social media. Employees Our employees are invited and encouraged to share feedback throughout the year, including through our employee insights surveys, which focus on such topics as engagement, workplace satisfaction, and inclusion and belonging. We host regular town hall meetings, enabling employees to receive formalized business updates, as well as hold informal employee roundtable discussions. Employees are also encouraged to communicate openly with their supervisor or management team. In addition, we have an internal employee networking tool that gives employees the ability to share thoughts and ideas interactively with colleagues throughout the organization. Read about how we engage employees through business networks (see page 50), development (p. 51), and dialogue (p. 53). B2B Customers Our customers regularly provide feedback through various channels that assist us in our efforts to improve the services we provide. Investors/Shareholders Our investors participate in ongoing dialogue with us regarding their concerns, suggestions, and opportunities for our company. Suppliers We actively engage with our suppliers, both in monitoring quality and ensuring compliance with our Code of Ethics, and we intentionally seek out opportunities to do business with minority- and woman-owned companies. We routinely invite our suppliers to participate in a forum where we discuss strategic priorities and initiatives. Read about our suppliers (p. 71). Nongovernmental Organizations (NGOs), Foundations, and Communities We are active in the communities where we operate and regularly engage with local groups on community activities. We have an active corporate-giving program (p. 61) that supports numerous charitable organizations (p. 63) through financial support, in-kind giving, and volunteer activities. Government Agencies/ Policymakers Quest regularly communicates with government officials and regulators regarding healthcare policy and other matters that may impact our company, and the patients and healthcare providers we serve, in order to understand how we can best contribute with our capabilities. TABLE OF CONTENTS 2021 OVERVIEW COVID-19 RESPONSE PROMOTING A HEALTHIER WORLD CREATING AN INSPIRING WORKPLACE BUILDING VALUE REFERENCES