▲ Samsung’s Circular Battery Supply Chain on display at Mobile World Congress (MWC) 2025 in Barcelona
“The key to extracting high-purity cobalt lies in technology,” said Kim. “Through our Circular Battery Supply Chain, we have successfully recovered and utilized over 90% of the cobalt from the discarded batteries that have been collected.”
Half of the cobalt used in the Galaxy S25 batteries comes from recycled sources — a strong testament to Samsung’s environmental strategy and commitment to reducing its environmental impact while maintaining premium product quality.
Nonetheless, establishing the Circular Battery Supply Chain was no easy feat as the batteries were required to meet stringent global safety and environmental regulations.
▲ Sangcheul Lee explains the certification management process.
“We had to engage with numerous partner companies, navigating complex and rigorous procedures,” recalled Lee. “To prevent fire hazards during transport, the batteries had to be crushed and obtaining the necessary certifications to comply with relevant environmental regulations took considerable time.”
“With constantly evolving regulations and Samsung’s exceptionally high internal standards, we underwent multiple rounds of reviews and certifications,” he added. “Despite the challenges, we persisted as a team and successfully implemented the system in the Galaxy S25.”
Samsung’s Evolving Vision for a Circular Economy
“I felt a great sense of pride when our Circular Battery Supply Chain was showcased at the recent Galaxy Unpacked event,” said Lee, reflecting on the achievement. “I hope to continue developing sustainable batteries by expanding our recycling efforts to include lithium and other materials.”
“With the Galaxy S25, we’ve also reached another significant milestone in resource circularity — wafer trays discarded after semiconductor manufacturing have been repurposed into a plastic used in the side and volume keys,” shared Kim. “We are working on various projects to expand resource circularity across other product lines as well, and we hope our users will continue to join us on our journey.”
Samsung has successfully established a closed-loop battery recycling system through the Circular Battery Supply Chain — turning a vision launched under its 2022 environmental strategy into reality with the Galaxy S25. This milestone has sparked growing anticipation for the next innovations that will emerge from Samsung’s pursuit of a more sustainable future.