2021 CORPORATE RESPONSIBILITY REPORT I 14 As the world’s leading provider of diagnostic information services, Quest stepped up and answered the call to play a central role in the national response to COVID-19. Since the onset of the pandemic in early 2020, our nearly 50,000 employees have been working to meet evolving testing needs and to provide insights into disease trends through research partnerships. These efforts remain critical to enabling safer environments as we reopen the economy and return to schools, routine healthcare, and workplaces—while continuing to acknowledge the crucial role of critical frontline workers who stayed at their posts throughout the emergency. On the following pages, we’ll share key milestones in our continuing COVID-19 response on behalf of our employees, customers, and communities. For up-to-date information on our ongoing COVID-19 efforts, visit QuestDiagnostics.com/COVID-19. COVID-19: Challenges, accomplishments, and opportunities TABLE OF CONTENTS 2021 OVERVIEW COVID-19 RESPONSE PROMOTING A HEALTHIER WORLD CREATING AN INSPIRING WORKPLACE BUILDING VALUE REFERENCES