Rare earth elements represent small slivers of the global metals market, but they function as significant factors on the geopolitical stage, where China wields considerable influence as a bargaining chip during trade disputes. Startup Radify Metals is developing a refining approach using plasma to process metal oxides into pure metals, with the goal of reducing pollution while addressing a critical supply-chain bottleneck.
China’s dominance and the “missing middle” in refining
Countries like the U.S. have begun taking steps to reduce China’s dominance in rare-earth processing. New mines have opened, and manufacturers are emerging to produce magnets and motors. However, this shift has been slow, with China having built its position over several decades.
Radify co-founder and CEO Zach Detweiler identifies a bottleneck that he believes has been overlooked: the step that converts metal oxides into pure metals. Detweiler describes this as the “missing middle,” and he ties the supply-chain problem to industrial capacity planning. As he explains, “in order to be able to support an entire industrial base, you’ve got to have that whole supply chain node-matched in terms of capacity.” In other words, building mines and manufacturing magnets may not be sufficient if refining capacity cannot keep pace with downstream demand.
Why refining methods matter for supply-chain resilience
At the center of Radify’s approach is the refining chemistry and industrial process used to remove oxygen from metal oxides. Most metal refining uses either heat or water—often combined with other elements—to strip oxygen from metal oxides, leaving pure metal that can be incorporated into alloys for magnets or electronics. Both processes are effective but also highly polluting.
An alternative exists using plasma—described as a superheated soup of super-energetic particles—to strip oxygen from metal oxides. According to the source material, the process’s only waste is water vapor. From a technology perspective, the main engineering challenge is not the reaction itself but making plasma-based refining cost-competitive and controllable at scale.
Detweiler’s “missing middle” framing suggests Radify is targeting the refinery step where upstream oxide supply and downstream metal demand must converge. If plasma refining can be deployed in a way that supports capacity matching, it could affect the practical feasibility of expanding rare-earth supply chains beyond mining and magnet manufacturing.
Radify’s plasma reactor: power electronics and powder handling
Radify reports that it has addressed the plasma refining challenge through a combination of more efficient power electronics and engineering solutions for handling metallic powders. The company recently provided TechCrunch with an exclusive look at its technology. The process is designed to transform a wide range of metal oxides, with current focus on two rare earths: dysprosium and samarium. These elements are key ingredients in magnets and electronics.
The major system-level components that Radify identifies as enabling plasma refining to move toward commercial viability are improved power electronics (to deliver the energy needs of plasma more efficiently) and reactor engineering for metallic powder handling (to ensure the feedstock can be processed reliably in a plasma environment).
In supply-chain terms, the reactor represents a processing node. This matters because earlier steps—such as mining—cannot automatically solve the refining capacity gap. If plasma refinement can be scaled, it could reduce reliance on refining pathways that are highly polluting and potentially constrained by capacity matching.
Funding and next steps
Radify’s development is backed by early-stage funding. The startup has raised just under $3 million from investors including Overture, Founders Inc., Mana Ventures, and Acequia Capital. The funding indicates that investors view plasma-based refining as a credible technical direction that could address both environmental and supply-chain constraints.
The work occurs within a broader context: countries and manufacturers are attempting to reduce dependency on China by building out mines and downstream components. In that context, a refining technology that targets metal oxides could become strategically important. Even though rare earths represent small portions of the metals market, they function as significant factors in industrial leverage—so the refining step that converts oxides into pure metals may be one of the limiting factors for scaling.
Based on available information, key questions for observers include whether Radify’s plasma reactor can deliver the promised combination of pollution reduction (with water vapor as the only waste) and capacity matching to support industrial-scale production. The extent to which Radify’s approach compares on throughput, energy cost, or operational reliability relative to conventional heat or water-based refining remains to be demonstrated.
For those following industrial engineering and supply-chain development, Radify’s work illustrates that supply-chain resilience often depends on process engineering details—power delivery, materials handling, and the ability to convert intermediate chemical forms (metal oxides) into usable outputs (pure metals). The “missing middle” represents a specific technical stage where process design can determine whether upstream resources and downstream manufacturing can scale together.
Source: TechCrunch