OUR COMPANY OUR GOVERNANCE OUR PE OPLE OUR COMMUNITIES THE ENVIRONMENT THE NUMBERS AND SMALL PRINT Product Lifecycle Management Extending the Life of Every Device E-waste has become a critical global issue. 53 million metric tons of electronic waste were discarded worldwide in 2019 alone . Making more sustainable choices when it comes to the lifecycle of electronic devices is important for several reasons: xi ■ Left to decompose in landfill, electronic devices can leach hazardous compounds such as lead or cadmium into the groundwater. ■ Discarded devices may be suitable for refurbishment and subsequent use by someone else. ■ Broken devices are rich in precious metals and recyclable materials that can be used in manufacturing new items versus extraction from the ground via highly carbon-intensive mining. As a wireless provider, we can play an important role in keeping devices out of landfills by providing our customers with ways to extend the lifecycle of their de vices when possible. Each year, millions of devices come back to T-Mobile through our Device Reuse and Recycling program, and our reverse logistics partners have continued to enhance the sorting and assessment process by leveraging new technology. More recently, our partners have used a robotic solution that takes devices through an automated machine- based evaluation to check the cosmetic quality and functionality of each device and determine whether it can be resold and reused or recycled. With the help of these machines, we’re able to evaluate devices more rapidly and objectively, improving the efficiency of the overall process and extending the device lifecycle for millions of smartphones, tablets, smartwatches, and more. For devices that can’t be reused, we work with recycling par tners that are certified to the rigorous and industry- leading R2 standard, which provides a common set of processes, safety measures, and documentation requirements for electronics recyclers. T-Mobile is the only U.S. wireless carrier to participate in t he Environmental Protection Agency’s (EPA) Sustainable Materials Management Electronics Challenge. This program challenges major manufacturers and retailers of electronics to send 100% of the e-waste they collect to third-party certified recyclers, increase e-waste collections, and publish data on recovery and disposal. We received the Gold Tier Award for our 2021 Device Reuse and Recycling program—the third straight year we were recognized with this honor. Tr a d e i n Customers can swap an eligible device for credit toward a new one, with the old device automatically entering our Device Reuse and Recycling program. It’s a win-win. Customers can find out what a device is worth with our trade-in estimator tool and get a new device. We either find a new home for the unwanted devices or ensure that the recyclable components and materials are put to good use. Recycle in store T-Mobile accepts smartphones, tablets, smartwatches, hotspots, or IoT items at our stores to be upcycled or recycled for free. We provide clear instructions for customers on how to clear their phones of personal data so they’re ready for recycling. 11.6M devices were reused, resold, or recycled through our Device Reuse and Recycling program in 2021 x i The Conversation. 20 22. Consume r electronics ha ve cha nged a l ot in 20 years — systems for managing e-waste aren’t keeping up. 2021 CORPORATE RESPONSIBILITY REPORT 59

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