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Post: Breakthrough in Solar Panel Recycling

  • Writer: Duane Nelson
    Duane Nelson
  • 4 days ago
  • 5 min read

Why RZOLV may offer a higher-value alternative for gold, silver, and rare-earth concentrates


The real issue with many concentrates is not whether they contain valuable metal. It is whether the producer gets paid fairly for that value. In too many cases, the answer is no. Once a concentrate leaves the mine gate or recycling facility, value starts leaking away through freight, treatment charges, refining charges, deductions, penalties, and downstream opacity. That problem is especially visible in solar recycling, where even advanced operators still do substantial front-end processing and then send material on for further refining. SOLARCYCLE says its advanced processing occurs in the United States before material leaves for further refining, and Comstock says its solar-recycling business generates revenue from offtake sales of concentrated precious metals. In other words, the industry is still largely set up to produce an upgraded stream — not necessarily the highest-value finished metal product.


That is why the silver story in solar-panel concentrates matters so much. In a February 2026 official podcast hosted on Comstock’s site, Comstock’s CEO said the company is currently selling silver-rich tailings to a refiner and receiving only about 45% to 50% of the silver value net, with 60% at best, after transportation and refining deductions. He also said the company sees a major opportunity in moving downstream to capture more of that value itself. That is a remarkable admission because it makes the commercial problem unmistakable: even when the silver is there, much of the value can still be captured by someone else. If RZOLV’s internal solar-concentrate result of roughly 85% silver recovery in 45 minutes continues to hold at representative scale, that begins to look less like a metallurgical curiosity and more like a potential commercial wedge into a market that is plainly leaving money on the table.


The broader PV recycling market helps explain why this opening exists. The IEA PVPS has described current PV recycling economics as a high-cost, low-revenue business because of limited recycling technologies, logistics challenges, and underdeveloped markets for recovered materials. The same report notes that further process improvements are needed to achieve high-value, low-cost recycling. That is exactly the kind of market where a faster hydrometallurgical recovery step can matter. If a recycler can move from shipping a discounted silver-bearing fraction downstream to actually recovering more of that silver closer to source, the economics can change materially even before considering the strategic value of domestic supply.


Gold concentrates present a different but equally important case. Here, the problem is often not just downstream deductions but also the limitations of conventional treatment routes on certain concentrate types. In January 2026, RZOLV reported independent SGS bottle-roll results on two Alaska gravity concentrates showing 98.7% gold recovery on an oxide concentrate and 89.4% on a sulfide concentrate under the test conditions evaluated. Under the same laboratory conditions, a cyanide reference achieved 99.9% and 90.7%, respectively. Those results are laboratory-scale and material-specific, and the company explicitly says broader validation is still required. But they still matter. They suggest that a non-cyanide hydrometallurgical route may be technically capable of competing with conventional treatment methods for selected gold concentrates, especially where shipping concentrates out for toll treatment or smelter-based disposition eats into margins or creates operational friction.


Rare earths are slightly different again — and that nuance matters. The bottleneck in rare-earth concentrates is often not traditional smelting at all, but chemical separation and refining. A U.S. Department of Energy white paper notes that rare-earth concentrates are exported for separation and processing, and states that the United States lacked commercial-scale domestic capability to separate REE concentrates into rare-earth oxides and process them into metals. The IEA has since warned that rare-earth supply chains remain highly concentrated, with China representing about 91% of global separation and refining for rare earths used in magnets. That means the rare-earth opportunity is not simply about dissolving metal from rock. It is about intercepting value before the concentrate disappears into a concentrated downstream refining system dominated elsewhere.


This is where RZOLV may become strategically interesting. In its October 2025 preliminary rare-earth work, the company reported that its reagent system dissolved more than 25 critical and rare-earth elements under standard, unoptimized test conditions, including reported recoveries of 73% cerium, 64% manganese, and 60% cobalt, while also stating that its pregnant solutions appear compatible with conventional ion-exchange and solvent-extraction circuits for downstream recovery and purification. That does not mean the rare-earth challenge is solved. Rare-earth separation remains a difficult chemical business. But it does mean RZOLV may have a plausible role as an upstream leach step that converts a stranded or exported concentrate into a domestically processable solution feeding established IX/SX separation logic instead of simply shipping raw value away.


Put together, the pattern is clear. The best case for RZOLV is probably not that it replaces every smelter, every refiner, or every conventional circuit. The stronger and more credible case is that it targets the places where the current route is weakest: gold concentrates that are penalized by complexity or logistics, solar-panel concentrates where silver-rich fractions are sold at deep downstream discounts, and rare-earth concentrates where value disappears into an externally controlled separation chain. In each of those cases, the common problem is the same: the producer or recycler has metal, but not enough control over the point at which the highest-value recovery happens.


That is why a breakthrough in solar panel recycling may be about far more than solar panels. If a fast hydrometallurgical system can prove it recovers silver efficiently from PV concentrates, that same commercial logic extends into gold concentrates and, in a different way, rare-earth-bearing mineral concentrates. The underlying theme is upstream value capture. Recover more metal earlier. Ship less dead weight. Surrender less margin to third parties. Keep more of the economics — and more of the strategic value chain — close to home. For a market increasingly focused on domestic processing, cleaner flowsheets, and better netbacks, that may be where RZOLV’s real opportunity begins.


Disclosure and Cautionary Statement

This article has been published by RZOLV Technologies Inc. as part of its corporate communications and investor relations activities and reflects the views and opinions of management as of the date of publication. It is provided for general informational purposes only and does not constitute investment advice, an offer to sell, or a solicitation to buy securities. Certain statements in this article may constitute forward-looking information within the meaning of applicable Canadian securities laws and are subject to risks, uncertainties, and assumptions that could cause actual results to differ materially. Readers should not place undue reliance on such statements. The Company’s officers, directors, and insiders may hold securities of RZOLV and therefore have a financial interest in the Company’s performance. Readers are encouraged to review RZOLV’s public disclosure documents available on SEDAR+ for a discussion of material risks and assumptions. Neither the TSX Venture Exchange nor its Regulation Services Provider has reviewed or approved the contents of this article.

 
 
 

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