Sustainability For Our For Our Creating Value For the For Our Managing Appendix at MetLife Workforce Customers as an Investor Environment Communities Responsibly GRI Standard Index Disclosure Number Disclosure Title Response/Reference Reporting Practice 102-45 Entities included in the consolidated 2021 10-K, Exhibit 21.1 financial statements 102-46 Defining report content and topic Boundaries Letter from Our CEO Sustainability at MetLife >> Recent Highlights in Alignment with the UN SDGs The content of this report aligns with MetLife's sustainability priorities, strategy and materiality. 102-47 List of material topics In order to ensure that MetLife is aware of and appropriately addressing issues relevant to our business and stakeholders, we performed a traditional materiality analysis in 2020 using a comprehensive data-driven process. The materiality analysis is based on real-time analytics on strategic, regulatory and reputational risks and opportunities. Implementing the analysis has strengthened our understanding of ESG-related issues and enhanced our in-house capabilities to assess their evolution. In addition, this data-driven process, along with feedback from various key stakeholders and sources (e.g., ESG ratings/rankings, investors, MetLife senior executives, external perspectives, peer benchmarking, etc.), allows us to develop a forward-looking sustainability strategy that helps ensure we can continue to be a force for good in the world, sustaining customers, family, and the planet. See also Sustainability at MetLife >> Our 2030 Sustainability Commitments for a summary of MetLife’s strategic approach to ESG issues. 102-48 Restatements of information MetLife will restate our GHG emissions data when changes to the inventory meet or exceed 2% of base year emissions (Scope 1, Scope 2 and Scope 3 business travel). Changes can result from the following: structural changes, methodology changes, errors, new data sources. Please see footnotes in report for further information on data changes. 102-49 Changes in reporting Changes have been noted in footnotes where applicable. 102-50 Reporting period January 1–December 31, 2021, unless otherwise noted. 102-51 Date of most recent report June 2021 102-52 Reporting cycle Annual 2021 SUSTAINABILITY REPORT 121