Ethical Business Practices Delivering Through High Ethical Standards There’s no room for compromise when it comes to doing business the right way. We conduct our business with high ethical standards to deliver the results our customers, stakeholders, and employees expect and deserve. Our Code of Business Conduct provides clear expectations on how we do it the right way at T-Mobile. It outlines the workplace conduct standards and legal guidelines we follow as part of our commitment to ethical business practices. We’re fair and honest in our business dealings. We don’t try to gain an unfair advantage over competitors, suppliers, or customers by deceiving anyone, taking advantage of confidential information, or fudging the facts. This includes compliance with U.S. and foreign laws barring corruption and bribery, conducting ourselves fairly and honestly in all business dealings, and abiding by antitrust rules and regulations. Our Code emphasizes fair competition. We do not conspire with our competitors to rig prices, fix bids, divvy up sales territories, or boycott particular suppliers or customers. Required Training We take a continuous learning approach so that T-Mobile’s Code of Business Conduct is integrated into our everyday business. Training takes place multiple times throughout the year and is required of all employees and officers of the company. This training covers topics such as Data Safety a nd Privacy, Anti-Corruption, Health and Safety, Harassment and Discrimination, and our Non-Retaliation policy, and enables everyone to understand our Code standards and commitment to ethical business practices. Additional ethical conduct policies are included in our company governance documents . All employees and officers of the company are required to complete T-Mobile’s Code of Business Conduct training each year. We regularly survey employees to help identify opportunities to strengthen our ethics culture and also have a centralized process for disclosing and addressing potential conflicts of interest. Governance and Oversight The Chief Compliance Officer provides an annual report to the Nominating and Corporate Governance Committee on the effectiveness of our compliance and ethics programs, using data analysis, key performance indicators, and external benchmarks to measure performance. To underscore our ongoing commitment to developing, evolving, and refining our business practices, we periodically conduct anti-corruption compliance risk assessments. Through these assessments, we identify key opportunities to further strengthen our training program and other aspects of our compliance and ethics programs. DOING RIGHT FOR OUR CUSTOMERS 2021 CORPORATE RESPONSIBILITY REPORT OUR PEOPLE OUR COMMUNITIES THE NUMBERS AND SMALL PRINT 15 OUR COMPANY THE ENVIRONMENT For almost a decade, our Un-carrier revolution has been about doing the right thing for our customers. It began with ending annual service contracts, data limits and overages, and international data charges, while providing more value for the money, revolutionizing customer care, and bringing a sense of humanity and fun to the wireless industry. Today, we keep giving more of what customers love without asking for more—from Price Lock, Internet Freedom, and Coverage Beyond to free mobile entertainment and free scam-blocking protection— all to help customers save money while enjoying a superior experience in both wireless and high-speed internet service. We treat customers honestly and fairly. That means giving customers complete and transparent information about our products and services. It means delivering what we promise. And it means we don’t charge customers for things they haven’t authorized. Additionally, T-Mobile abides by the practices outlined in the Consumer Code for Wireless Service from CTIA, the trade association representing the wireless industry. By marketing and selling responsibly, we help our customers avoid bill shock and confusing account balance information. How We Operate, According to Our Code of Business Conduct We Do It the Right Way. Always. We Take Care of Our Customers We Respect Each Other and Our Environment We Demonstrate Integrity 24/7 We Do Business Right We Protect T-Mobile Information and Assets OUR GOVERNANCE