In a major push to secure domestic supply chains for critical minerals, the U.S. government has accelerated funding for technologies that recover rare earth elements (REEs) from unconventional sources. Driven by the need to support manufacturing, decarbonized energy infrastructure, and national security, these initiatives aim to reduce reliance on foreign imports by tapping into industrial byproducts, such as mine waste, called mine tailings. In line with President Trump’s March 2025 executive order to increase domestic critical mineral production, the Department of Energy (DOE) has recently launched significant funding opportunities through its Critical Minerals and Materials Program. All 17 rare earth elements—scandium (Sc), yttrium (Y), and the lanthanides, such as praseodymium (Pr), neodymium (Nd), terbium (Tb), and dysprosium (Dy)—are federally designated critical minerals.
- Rare Earth Demonstration Facility Program ($134 million): In December 2025, DOE’s Office of Critical Minerals and Energy Innovation (CMEI) announced $134 million in funding to support projects that demonstrate the commercial viability of recovering and refining rare earth elements from unconventional feedstocks including acid mine drainage, mine waste, e-waste, and other deleterious material like industrial waste. In June 2026, two awards were announced for the Colorado School of Mines, to process “red mud” which is a critical mineral-rich bauxite waste product, and Phoenix Tailings (Woburn, MA), to produce high-purity heavy rare earth metals from domestic industrial waste-derived feedstocks.
- Mines & Mine Capacity Expansion Program ($275 million): In November 2025, DOE announced $275 million in funding for the Mines & Metals Capacity Expansion – Piloting By-Product Critical Minerals and Materials Recovery at Domestic Industrial Facilities funding opportunity. It focuses on development of technologies for recovery of critical minerals and materials from mining and other industrial byproducts and wastes. In July 2026, five projects, totaling $75 million, were selected under Topic Area 1: Mines & Metals Pilots—Coal-Based Industry.
Global demand for rare earth elements is projected to surge over the next 10+ years. The International Energy Agency (IEA) estimates it will grow 50-60% by 2040. The overall global rare earth metals market stood at about 241,000 metric tons in 2025 and is expected to grow at a compound annual growth rate (CAGR) of 4.4% to reach 298,000 metric tons in 2030, according to MarketsandMarkets. Valued at $5.46 billion in 2025, the market is projected to grow in value at a CAGR of 6.2% to reach $7.39 billion in 2030. Neodymium (Nd) accounts for about 51-52% of the market by value, followed by praseodymium (Pr) at 19-20% and terbium (Tb) at 13-14% (MarketsandMarkets, 2025).
Reuse and recovery could meet 30-40% of rare earth mineral demand by 2050 in key regions like the U.S., Europe, and China, according to Frost & Sullivan. However, the global market for recovery and recycling of rare earth metals – from fluorescent lamps, magnets, batteries, fluid cracking catalysts, and industrial processes – is still emerging, with an estimated value of $422 million in 2026, according to MarketsandMarkets. North America accounts for about 11% ($47 million).
Mine tailings from coal and other mining operations is one promising feedstock (see, for example, Chowdhury & Talan, 2025), and the U.S. Geological Survey has conducted multiple studies identifying, characterizing, and mapping critical minerals in mine waste. A recent analysis by Colorado School of Mines researchers Holley et al. (2025) suggests that 90% recovery of existing materials in mine tailings could meet nearly all domestic demand for critical minerals and that just 1% recovery would substantially reduce reliance on imports. Despite the potential, the economics of reprocessing mine tailings are incredibly sensitive to market prices, which have been unstable, and most proposed methods of recovery require a great deal of capital expenditure to implement, while others have yet to be demonstrated at scale.
Key players in the global market for rare earth element recovery from mine waste range from pure-play recovery technology companies, large diversified mining companies, and midstream and separation-focused firms. Examples include the following:
Recovery technology companies
- Infinite Elements Inc. (U.S.)
- Momentum Technologies (U.S.)
- Nexus 7 Elements LLC (U.S.)
- Phoenix Tailings Inc. (U.S.)
- Regeneration Enterprises Inc. (U.S.)
- EnviroGold Global (Canada)
- Geomega (Canada)
- LKAB (Sweden)
- Rainbow Rare Earths Ltd. (UK)
Midstream (separation) technology companies
- Ucore Rare Metals Inc. (Canada)
- American Resources Corp. (U.S.)
Large mining companies
- Rio Tinto (UK)
- Energy Fuels (U.S.)
To learn more about technologies for recovering rare earth elements from mine tailings and the market needs, consider checking out the Society for Mining, Metallurgy & Exploration (SME)’s annual conference and expo, MINEXCHANGE. The 2027 meeting is being held February 28–March 3 in Denver, CO. The February 2026 conference’s technical program features relevant talks from Rio Tinto, Infinite Elements Inc., and academic researchers, among others.
Market Research by Desirae Zingarelli-Sweet