Key points

• Rare earth elements and valuable metals can be recovered from retired data center servers, turning e-waste into a potential revenue stream.
• Western Digital, Microsoft, and Korea Zinc are exploring recycling data center hardware to reduce reliance on rare earth imports, especially from China.
• Strategic hardware retirement and asset management can help companies recover materials, lower disposal costs, and improve sustainability.

The retirement of old server equipment from data center facilities could become an opportunity for enterprises to generate revenue, instead of being an often costly recycling expense. Last year, Western Digital announced it was experimenting with new ways to extract valuable rare earth elements and metals from obsolete servers from Microsoft’s US data centers, as part of a collaboration with Critical Materials Recycling and PedalPoint Recycling.

And on Thursday, Reuters reported that Korea Zinc, which it described as one of the world’s largest smelters, is in "talks with major US technology firms to recycle data center waste and extract rare earth." The move comes almost one year to the day after China announced immediate export controls on seven more rare earth elements critical to enterprise IT hardware manufacturing. The new controls from China’s State Council required export licenses for samarium, gadolinium, terbium, dysprosium, lutetium, scandium, and yttrium.

According to Reuters, the Korea Zinc initiative will give the US another rare earth source beyond its main supplier, China, which produces about 90% of the world’s rare earths. Sanchit Vir Gogia, chief analyst at Greyhound Research, said that the Korea Zinc initiative reflects a structural shift beginning to take shape inside the global technology infrastructure economy.

For decades, he said, "the retirement of data center equipment was treated almost entirely as a compliance and disposal issue." But "that assumption is beginning to change, because the hardware inside modern data centers contains a wide range of strategically important materials," Gogia pointed out. "As global demand for digital infrastructure continues to expand, the volume of retired hardware entering disposal channels is rising quickly."

For a metals producer, Gogia said, data center infrastructure represents a highly attractive feedstock. That predictability "allows recyclers to design specialized processes that target specific components and materials," he added. For enterprises themselves, he said, "the implications are primarily economic and operational rather than geopolitical." Organizations that approach decommissioning more strategically can improve outcomes significantly through careful separation of valuable components.

Data centers have traditionally been viewed as energy-intensive facilities that consume enormous resources, but what’s becoming visible now is that they also generate a growing stream of recoverable materials after their operational life. As computing infrastructure expands globally, those retirement streams will begin to resemble industrial resource flows rather than simple waste. "

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