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Recovering critical and precious metals from industrial waste and spent electronics is not a new idea. What is new is finding ways to do it efficiently, cleanly, and at a scale that makes economic sense. Traditional smelting, the method most commonly used to extract metals from concentrates, is energy-intensive and comes with significant emissions concerns. Chemical leaching, the other widely used approach, introduces its own complications, including toxic byproducts and large volumes of acid-laden wastewater. As global demand for critical and strategic metals accelerates, the environmental and economic limitations of these conventional methods are becoming increasingly apparent.
The market pressure behind finding better solutions is significant. The precious metals e-waste recovery market is expected to grow from $11.13 billion in 2025 to $11.85 billion in 2026, at a compound annual growth rate of 6.5%. That number reflects both the volume of electronic waste accumulating globally and the growing recognition that what ends up in a discarded circuit board or refinery byproduct is not garbage. It is a resource.
Into this space comes Metallium Limited (OTCQX: MTMCF), an Australian-based company whose U.S. subsidiary, Flash Metals USA, Inc., operates a technology development facility in Chambers County, Texas. The company focuses on recovering critical and precious metals from mineral concentrates and high-grade waste streams using its patented Flash Joule Heating technology, which enables extraction of high-value materials including gallium, germanium, antimony, rare earth elements, and gold from feedstocks such as refinery scrap, e-waste, and monazite. The technology was originally developed at Rice University, where it emerged from research in materials science and engineering. At its core, the process involves passing an electrical current through a material, causing it to heat to temperatures exceeding 3,000 degrees Celsius in milliseconds. The metals vaporize and separate without the need for acids or conventional smelting.
Rice University’s intellectual property behind the process has been licensed to Flash Metals USA, with the Texas facility targeted for production in the first quarter of 2026. The technology has also drawn support from the U.S. Defense Advanced Research Projects Agency, which funded early research into using flash Joule heating to separate critical minerals from electronic waste. That kind of backing signals more than academic interest. It reflects how seriously government and defense planners are taking domestic supply chain resilience for materials like gallium and rare earth elements.
Metallium has announced a concrete operational milestone: the successful concurrent operation of three Flash Joule Heating units at its Texas facility. Running multiple units at the same time is a meaningful step toward proving the technology can work at commercial scale, not just in a lab. The company reported that the campaign achieved 83% availability and approximately 100% utilization during active operation, both of which exceeded internal expectations. While the units ran on inert test material rather than actual commercial feedstocks, the throughput rates were broadly consistent with what would be needed to process several tons of incoming material per day after preprocessing. In other words, the technology performed as if it were handling real-world volumes.
Michael Walshe, managing director and CEO of Metallium, described the result as providing valuable confidence in the scalability of the technology, while also generating engineering data the company will use in future development programs. The distinction matters: this was not just a performance test. It was also a data-collection exercise designed to inform how the company builds out at larger scale.
For a sector long dominated by energy-hungry, chemically intensive processes, the progress at the Texas facility is worth watching. Research published in Nature Communications demonstrated that flash Joule heating can recover precious metals from electronic waste in under one second, with recovery yields above 80% for metals like rhodium and palladium, and above 60% for gold, all without the use of solvents. The question was always whether results like those could be replicated reliably across multiple units running together. This latest milestone suggests the answer is moving closer to yes
