Research & Technology

DOE Deploys $162 Million to Push Scandium, Antimony, and Rare Earth Recovery from Industrial Feedstocks to Prototype Scale

September 11, 2026
12 min read
DOE Deploys $162 Million to Push Scandium, Antimony, and Rare Earth Recovery from Industrial Feedstocks to Prototype Scale

The DOE's Office of Critical Minerals and Energy Innovation selected nine projects on August 18, 2026, for awards totaling $162 million to recover scandium, antimony, copper, and rare earth elements from mine tailings, alumina refinery residue, and other industrial byproduct streams. Four companies will advance from laboratory to prototype stage, while five will push from prototype toward pre-commercial demonstration. The awards represent the latest tranche of a sustained federal push, rooted in a nearly $1 billion August 2025 funding program, to close domestic supply chain gaps without waiting for entirely new mines.

Introduction

On August 18, 2026, the Department of Energy's Office of Critical Minerals and Energy Innovation announced selections totaling $162 million for nine projects targeting bench- and pilot-scale recovery of scandium, copper, antimony, and rare earth elements from industrial feedstocks. The awards, which will be managed by the National Energy Technology Laboratory, are part of the Mines and Metals Capacity Expansion program, itself a downstream consequence of DOE's nearly $1 billion suite of funding opportunities announced in August 2025.

The announcement arrives at a moment when federal investment in critical minerals processing has reached a pace without recent precedent. In the preceding twelve weeks alone, DOE released $500 million for battery materials and processing on August 20, $10 million for early-stage CMI Hub research on August 26, $134 million for rare earth demonstration facilities in June, and $75 million for coal-based feedstock projects in July. The $162 million round fills a specific and previously underserved niche: industrial byproduct streams that are neither coal-based nor post-consumer scrap, a category that includes red mud from alumina refining, tailings from copper and molybdenum operations, and stibnite deposits adjacent to active gold mines.

Assistant Secretary of Energy Audrey Robertson framed the strategic logic plainly: "Leveraging existing bench-scale and pilot-scale facilities is a vital opportunity to produce critical materials necessary for our energy, defense and economic security." Her second key message addressed commercial risk: "By investing in these facilities, we can de-risk commercial-scale production technologies to grow new economic and manufacturing opportunities." Both statements point toward a federal calculus that prioritizes speed and capital efficiency over the decade-long timelines associated with greenfield mine development.

It bears noting that DOE's selection language carries a deliberate caveat. Selection for award negotiations is not a commitment to issue funding; DOE retains the right to cancel negotiations and rescind any selection for any reason, and award amounts remain subject to change. That qualification matters for investors and analysts reading the announcement as a signal of imminent commercial capacity, because advancing a technology readiness level does not, by itself, establish recovery cost, purity, throughput, or economic margin.

Program Architecture: Two Subtopics, Nine Projects, a Defined TRL Ladder

The nine selections fall under Topic Area 2 of the Mines and Metals Capacity Expansion funding opportunity, which is explicitly scoped to exclude coal-based industries and post-consumer or manufacturing scrap recycling. That exclusion is intentional: it carves out space for a category of domestic feedstock that sits between the primary mine and the end-of-life recycling bin, namely the vast quantities of mineral-bearing material already being generated, stockpiled, or managed as waste at operating industrial sites.

Subtopic 2a targets four companies whose processes currently sit at Technology Readiness Level 4 or 5, meaning they have demonstrated the concept in a laboratory environment but have not yet integrated components into a working prototype system. The goal of each 2a award is to advance those processes to TRL 7, defined as a prototype demonstrated in an operational environment. Subtopic 2b supports five companies already at TRL 6 or 7, pushing them toward TRL 7 or 8, the pre-commercial demonstration threshold at which production economics and scalability can be assessed with meaningful confidence.

The program structure reflects a hard lesson from earlier federal investment rounds: grants that fund fundamental research rarely produce industrial output within a policy-relevant timeframe, while grants aimed directly at commercial scale frequently stumble over unresolved process engineering. The TRL ladder framework attempts to match federal dollars to the specific transition risk at each stage, concentrating $162 million on the laboratory-to-prototype and prototype-to-pre-commercial gaps where private capital has historically been most reluctant to commit. Projects may span up to 48 months and require a 20 percent cost share, setting a threshold that filters out applicants without credible private financial backing.

DOE's program ceiling for Topic Area 2 is up to $200 million across up to ten awards, meaning the nine selected projects have collectively captured most but not all of the available envelope. Individual awards range from $10 million to $75 million depending on scope and stage, with 2b projects generally commanding larger allocations given their broader operational footprint.

The TRL 2a Cohort: Solvents, Electrochemistry, Modular Separation, and Silicon Membranes

The four companies selected under Subtopic 2a represent distinctly different technical approaches to a shared problem: how to extract critical minerals from dilute or complex industrial waste streams without replicating the energy and capital intensity of conventional pyrometallurgy or solvent extraction.

Anactisis Inc., a Pittsburgh-based Carnegie Mellon University spinoff, is developing a solvent-free separation technology that uses highly selective adsorbent materials to recover scandium, germanium, rare earth elements, and other critical materials from industrial byproducts and waste streams. The solvent-free approach is particularly significant for scandium, a metal for which the United States reported 100 percent net import reliance in 2025, sourced from Japan and China. Scandium's primary use in aluminum-scandium alloys for aerospace and solid oxide fuel cells makes domestic supply strategically valuable, but its extreme dispersal in ore bodies and conventional waste streams has historically made economic recovery elusive.

Still Bright Inc., based in Newark, New Jersey, is developing a process called RACER, or Rapid and Complete Electrochemical Reduction, which uses vanadium-based chemistry to extract copper from sulfide ores and concentrates at ambient conditions. The company claims recovery rates of up to 99 percent of copper without the high-temperature furnaces central to conventional smelting. Eliminating pyrometallurgical steps reduces both capital expenditure and greenhouse gas intensity, addressing two constraints that have complicated domestic copper processing investment.

Nusano Inc. of West Valley City, Utah, brings an unusual lineage to mineral processing: the company developed advanced mass-separation processes alongside a radioisotope production business, and is now applying that modular separation technology to critical mineral refining. Nusano claims the approach can eliminate several chemical-intensive steps present in conventional mineral separation, potentially reducing reagent consumption and waste generation at pilot scale. SiTration Inc., an MIT spinout based in Cambridge, Massachusetts, rounds out the 2a cohort with a silicon membrane-based technology designed to recover copper and other critical materials from diluted mining waste streams at operating sites, a configuration that would allow deployment directly at existing industrial facilities without constructing separate processing infrastructure.

The TRL 2b Cohort: From Molybdenum Byproducts to Red Mud to Antimony Smelting

The five companies in Subtopic 2b collectively represent a cross-section of U.S. industrial infrastructure: existing metals processing plants, an active gold mine, an aluminum refinery residue stream, a modular liberation technology company, and a dedicated antimony smelting project. What unites them is that each is working with feedstocks already being generated at scale, removing the site permitting and ore body development timeline from the critical path.

Thompson Creek Metals Company USA, a Centerra Gold subsidiary operating the Langeloth Metallurgical Facility near Pittsburgh, converts molybdenum concentrates into finished products and already has the capability to recover rhenium as a byproduct. The DOE selection is aimed at leveraging this existing infrastructure to advance critical mineral recovery toward commercial scale, treating a functioning industrial plant as a platform for material diversification rather than a dedicated single-product facility.

Alcoa USA Corp. is pursuing recovery of gallium and other critical minerals from bauxite residue, the high-volume industrial byproduct known as red mud generated during alumina refining. This is a materially significant target: red mud accumulates in large quantities at alumina plants worldwide, represents a long-term environmental liability, and contains concentrations of gallium, titanium, and rare earth elements that are economically sub-threshold with conventional extraction chemistry but potentially viable with purpose-built hydrometallurgical processes. Building on my earlier analysis of CMI Hub awards targeting gallium from industrial waste streams in September 2026, Alcoa's selection signals that the no-new-mines approach to gallium is attracting interest at both the early-stage research and the pilot-scale demonstration level simultaneously.

DISA Technologies Inc. of Mills, Wyoming, is advancing High-Pressure Slurry Ablation, or HPSA, a patented mineral liberation technology that uses high-velocity slurry collisions to physically separate target minerals from surrounding host material. Designed as a modular alternative to conventional grinding circuits, HPSA targets both mined ores and legacy waste streams. Felix Gold Alaska Treasure Creek Inc., an Alaska-based subsidiary of Felix Gold Ltd., is developing antimony recovery at its Treasure Creek project near Fairbanks, where high-grade stibnite mineralization has been identified adjacent to an operating gold mine. Assistant Secretary Robertson specifically highlighted the Treasure Creek project as an example of the program's feedstock philosophy: the company currently operates a gold mine, and the funding would support innovation of its antimony extraction process using existing resources and infrastructure at the mine site.

Trigg Minerals, the U.S. subsidiary of ASX-listed American Tungsten and Antimony Ltd., has been selected for a potential award of up to $18 million under the ASCEND project, an acronym for Advancing Smelting Capacity for Expansion and National Dominance in Antimony. The company is developing a domestic antimony smelting and refining strategy designed to convert U.S.-sourced feedstock into high-purity antimony products for defense, energy, and advanced manufacturing markets. As part of a broader agreement tied to the project, Trigg projects 400 new jobs and more than $287 million in private investment in rural Utah over nine years. The Utah Governor's Office of Economic Development specifically noted the potential to establish the nation's first modern antimony tertiary refining facility in the state.

Antimony's Urgency: Price, Import Dependency, and Defense Applications Converge

Of the critical minerals addressed by the August 18 selections, antimony carries perhaps the most acute near-term policy pressure. U.S. net import reliance for antimony reached 91 percent of apparent consumption in 2025, up from 86 percent in 2024, against a backdrop of domestic primary mining output of only 700 tonnes against apparent consumption of 45,000 tonnes. Secondary production from recycling contributed 3,500 tonnes in 2025, valued at $190 million, but that still leaves the overwhelming majority of supply dependent on imports.

Prices have moved dramatically. The average U.S. antimony metal price reached an estimated $25 per pound in 2025, up from $10.24 in 2024 and $5.31 in 2021, a 144 percent surge in 2025 alone driven by China's progressive tightening of export controls beginning in 2023. Those controls, part of a broader pattern of leveraging critical mineral market dominance as a geopolitical instrument, sent prices to multi-year highs and triggered urgent reassessments across defense supply chain planners. Antimony's military relevance is direct: it is used in ammunition primers, infrared sensors, flame retardants, and a range of other defense applications.

The combination of price signal and supply risk has materially improved the economics of lower-grade recovery and secondary processing, which helps explain why two of the five Subtopic 2b selections target antimony specifically. At $5 per pound, a marginal antimony recovery operation makes little financial sense. At $25 per pound, with further price support plausible if Chinese export restrictions intensify, the calculus changes considerably. Felix Gold's Treasure Creek project and Trigg Minerals' ASCEND facility are both positioned to benefit from this environment, though their commercial timelines remain subject to the negotiation and demonstration milestones built into the DOE award structure.

The selection of two antimony-focused projects under a single funding round also reflects a recognition that the U.S. requires parallel development across the supply chain: primary mineral recovery and refining capacity must scale together. Building a smelter without a reliable domestic feedstock supply, or developing a mine without downstream processing, produces only a partial answer to the import dependency problem.

The $1 Billion Ecosystem: Where This Round Fits

The $162 million round announced August 18 is one component of a funding architecture that DOE has been assembling since August 2025, when the department announced nearly $1 billion in funding opportunities across critical mineral supply chains. The breakdown of that umbrella included $500 million for processing and battery manufacturing, $250 million for industrial byproduct recovery, $135 million for rare earth supply chain enhancement, and $40 million for ARPA-E's RECOVER program. The $162 million announced in August 2026 draws from the $250 million industrial byproduct envelope, with the residual amount allocated to the coal-based Topic Area 1, which received $75 million across five projects on July 1, 2026.

The cumulative effect of these sequential announcements is a federal investment posture that is both more systematic and more visible than the fragmented grant programs of earlier years. Energy Secretary Chris Wright's August 2025 framing set the tone: "For too long, the United States has relied on foreign actors to supply and process the critical materials that are essential to modern life and our national security." That statement was accompanied by an explicit executive order basis, specifically President Trump's March 20, 2025 order on Immediate Measures to Increase American Mineral Production, which provided programmatic authority for accelerating the funding timeline.

The nine projects selected on August 18 reflect a strategic orientation that deliberately looks beyond new mine development. Robertson's summary of the feedstock philosophy is precise: these are materials being extracted from old tailings, abandoned copper mines, existing aluminum facilities, and other sources. In the U.S. context, where permitting a new mine can take more than a decade and where existing industrial infrastructure represents decades of sunk capital, this orientation toward above-ground feedstocks is both pragmatic and strategically significant. It mirrors, in structure if not in scale, China's integrated approach to critical mineral resource utilization, in which byproduct streams from one industrial process routinely feed the inputs of another.

Total U.S. domestic nonfuel mineral production reached $112 billion in 2025, a 6 percent increase from $106 billion in 2024, driven by metals price appreciation and modest industrial minerals growth. That figure provides a baseline sense of the industry against which these pilot investments are being made, though the materials targeted by the nine projects (scandium, antimony, gallium from red mud, heavy rare earths) are high-value, low-volume outputs that would not materially shift the aggregate production figure but could substantially alter domestic supply security for specific defense and energy technology applications.

Conclusion: Moving from Laboratory Promise to Industrial Reality

The August 18 announcement represents a genuine advance in U.S. critical mineral strategy, but its significance depends heavily on execution at the project level. For the four Subtopic 2a companies, the task is to demonstrate that processes that work at bench scale survive the physical and chemical complications of prototype operation, a transition that eliminates the majority of early-stage technology candidates in materials processing. For the five Subtopic 2b companies, the challenge is translating prototype performance into pre-commercial economics that attract private capital for the next phase of scale-up.

Neither challenge is trivial. The analyst observation that advancing a technology readiness level does not establish recovery cost, purity, throughput, customer qualification, or economic margins is a useful corrective to any reading of the $162 million as a guarantee of commercial output. DOE's own language reinforces this: selections remain subject to negotiation and can be rescinded. The 20 percent cost-share requirement provides some filter, but it does not resolve the fundamental uncertainty about which of these nine approaches will ultimately produce commercially meaningful volumes of scandium, rare earths, antimony, or copper at competitive cost.

What the round does establish is that federal industrial policy has moved into the difficult space between laboratory promise and industrial reality in a more structured way than at any prior point in this decade. The TRL-based framework, the project-scale cost share, the 48-month timeline, and the NETL management structure all represent a more disciplined deployment of public capital than the earlier, more diffuse grant programs that characterized U.S. critical mineral policy before 2025.

For the defense and energy technology sectors that depend on antimony, scandium, and rare earth magnets, the question is whether the pilot-scale demonstration phase produces bankable data within a timeframe that aligns with procurement planning cycles. If it does, the nine projects selected on August 18 will represent a genuine bridge from research to supply security. If the results are mixed or delayed, the gap between China's integrated critical mineral infrastructure and the U.S. rebuild effort will remain uncomfortably wide.

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