US focuses on extracting critical minerals from mine waste to enhance supply security

In a move that represents a shift in resource management policy, the US Interior Department has recently announced a groundbreaking initiative to extract critical minerals from mine waste and legacy sources throughout the country. This strategic approach, unveiled on July 25, 2025, aims to turn what was once considered waste into a valuable domestic supply of essential minerals.

Interior Secretary Doug Burgum highlighted the importance of this initiative, emphasizing the significance of unlocking the potential of mine waste in recovering valuable critical minerals crucial for the economy and national security. Burgum also noted the essential role of groundbreaking research from the US Geological Survey in driving this initiative, stating that it reflects the US’s commitment to achieving mineral independence.

The program includes several coordinated actions designed to accelerate mineral recovery while addressing environmental concerns. These actions include streamlining federal regulations to expedite approval processes for mine waste reprocessing, specifically targeting coal refuse, tailings piles, and abandoned uranium mines. Additionally, waste recovery projects are now eligible for federal funding programs, and regulatory reviews for uranium and other critical minerals projects have been prioritized. The USGS has also been tasked with comprehensive mapping and inventorying of mine waste on federal lands to support these efforts.

Acting Assistant Secretary of Lands and Minerals Adam Suess further explained the significance of streamlining regulations for extracting critical minerals from mine waste, highlighting how it unleashes America’s mineral resources’ full potential to enhance national security and economic growth.

The new directive represents a multi-faceted approach to resource recovery, targeting previously overlooked or undervalued waste sites to unlock billions of dollars worth of minerals while implementing modern environmental controls. By reducing permitting timelines for priority projects to potentially under 18 months, the Interior Department aims to expedite mine waste reprocessing operations compared to new mining ventures, which usually face longer approval processes.

Federal funding eligibility has become another key element of this initiative, enabling waste reprocessing operations to access grants and loans that were previously unavailable for such projects. This change recognizes the dual benefits of mineral recovery and environmental remediation that these projects offer.

Historical mining operations often focused on a single target mineral, leaving behind materials containing other valuable elements due to technological limitations or market conditions at the time. With advancing extraction technologies and increasing demand for critical minerals, mine waste repositories now present significant untapped resources. Processing methods have evolved to recover minerals at concentrations that were previously uneconomical, making these sites strategic opportunities for resource recovery.

Studies conducted by the USGS and state geological surveys have identified promising deposits of critical minerals in various leftover mining sites across the US. For instance, the tailings from the Bingham Canyon copper mine in Utah contain significant amounts of tellurium, a rare element crucial for high-tech applications in advanced solar panel manufacturing, military infrared detection systems, memory devices, and cooling technologies. These findings suggest that mine waste could potentially contain billions of dollars’ worth of untapped mineral value, providing a sustainable source of critical minerals for the US economy and national security.