About this TransUnion’s 2021 Sustainability Report was published on April 14, 2022 and reflects activities and initiatives in our fiscal year 2021 (January 1, 2021–December 31, 2021), Report as well as certain planned events in 2022. To allow for comparability, we have included information on our ESG performance for four methodologies: SASB, TCFD, UN SDGs, and GRI. Glossary ESG Environmental, social and governance issues DEI Diversity, Equity and Inclusion SASB Sustainability Accounting Standards Board TCFD Task Force on Climate-Related Financial Disclosures UN SDGs United Nations Sustainable Development Goals GRI Global Reporting Initiative Materiality We are reporting on our most material topics identified during our 2021 materiality assessment. For purposes of this report, the issues identified in the ESG materiality section could differ with the definitions used for filings with the Securities and Exchange Commission (SEC). Issues deemed material for purposes of this report may not be considered material for SEC reporting purposes. ABOUT THIS REPORT TRANSUNION | 2021 SUSTAINABILITY REPORT 6