Building a Diverse Supply Chain We’re continuing to strengthen the diversity of our suppliers to ensure a more representative, resilient, and economically inclusive supply chain that spurs positive change in industries beyond our own. To drive diversity in our supply chain, we’re educating employees on how to promote our supplier diversity efforts and are rewarding their progress. We’re also taking steps to directly invest in initiatives that train underrepresented groups for jobs critical to our supply chain. Identifying Opportunities for Progress In 2021, we implemented our Supplier Diversity Category Management Strategy for our network technology procurement organization, covering all T-Mobile’s spend outside of wireless devices. This strategy enables category managers to identify the supplier diversity spend more easily in the areas they oversee, which helps them to identify opportunities and develop actionable targets that lead to progress. We also implemented a reward and recognition program to recognize Procurement Sourcing Managers who actively work with traditionally underrepresented, disadvantaged, and/or small business owners and award new contracts to these businesses. Driving Inclusive and Equitable Programs To invest in a more diverse supply chain, we launched the NextTech Diversity Program to provide career training and job placement for hundreds of candidates from traditionally underrepresented backgrounds, helping them take on meaningful employment within the telecommunications industry. We also co-launched Diversity in Clean Energy (DiCE) in 2021, to drive inclusive and equitable practices in sourcing and supplier selection across the clean energy value chain. Programs like these are having an impact. In 2021, we spent $3.27 billion with suppliers from traditionally underrepresented backgrounds, putting us on track to achieve our goal of joining the Billion Dollar Roundtable for supply chain diversity excellence by 2025. The Billion Dollar Roundtable was created in 2001 to recognize corporations that annually spend at least $1 billion with minority and women-owned suppliers. $3.27 billion spent with suppliers from traditionally underrepresented backgrounds Responsible Supply Chain Continued Recognition for Supporting Supplier Diversity in 2021 Recognized by Military Friendly® for supplier diversity Best of the Best top 50 corporations for inclusion— National Business Inclusion Consortium Corporation of the Year Asian Business Association of Los Angeles (ABALA) Diversity & Inclusion of the Year Award Greater Los Angeles African American Chamber of Commerce (GLAAACC) Industry Change Agent of the Year Learning Alliance Corporation 2021 CORPORATE RESPONSIBILITY REPORT OUR PEOPLE OUR COMMUNITIES THE NUMBERS AND SMALL PRINT 24 OUR COMPANY THE ENVIRONMENT OUR GOVERNANCE