When we looked at Panther Metals (LON: PALM) and Fulcrum Metals (AIM: FMET), last September, the central idea was simple. Historic mine tailings, long treated as a legacy problem, were starting to look like a practical source of value. Strong gold prices, improved recovery technology and clearer regulatory pathways in Ontario had created the conditions for old waste piles to be reassessed as surface-level metal inventories. The original argument was not that tailings were suddenly easy, but that the economics and environmental logic had changed enough for investors to take the theme seriously.
Eight months later, the story has moved on. The question is no longer simply whether historic tailings can contain recoverable gold, silver or critical metals. Both companies have now pushed deeper into the harder part of the process, proving grades, testing recoveries, defining resources, securing funding and moving projects closer to commercial decision points. That shift matters because junior mining stories often look attractive at the concept stage, but only begin to separate themselves when fieldwork, metallurgy and capital discipline start to test the original thesis.
Panther Metals has been rewarded by the market as its Winston Tailings Project has developed from a compelling rehabilitation story into a broader resource definition and critical metals opportunity. Fulcrum Metals has taken a different route, with a more focused waste to metal platform built around Teck Hughes and Sylvanite, now supported by a major funding package intended to move its pilot plant plans forward. Both companies are still early stage, and neither has yet removed the normal execution risks that come with metallurgy, permitting and financing. But the comparison is now more interesting because both are moving from narrative into measurable delivery.
That makes this follow up less about the novelty of turning waste into gold, and more about proof from process. Panther is trying to show that Winston can become a defined, infrastructure backed resource with additional strategic value from critical metals and its wider Canadian portfolio. Fulcrum is trying to show that a specialist tailings company can use cleaner processing technology to turn historic mine waste into a scalable production model. For retail investors, the next phase is therefore not just about believing the tailings theme, it is about watching which company can convert surface material into numbers that support a real project.
Tailings move from theme to work programme
The important change since the first article is that both stories now have more substance behind them. Last September, the wider point was that historic tailings were being pulled back into focus by stronger gold prices, improved processing technology and a more practical regulatory framework in Ontario. That remains true, but the investment case has become more specific. Investors are no longer being asked only to consider the idea that old mine waste may contain value, they can now track drilling, assay results, recovery rates, pilot plant planning and resource work.
That matters because tailings projects sit in a different category from conventional exploration. The material is already at surface, which can shorten the route from sampling to processing, but it still has to be measured, tested and engineered properly. Grades need to be consistent enough to support a resource. Recoveries need to work at scale, not just in selective test samples. Water handling, reagent use, tailings stability, permitting and site rehabilitation all become part of the commercial equation.
This is where Panther Metals and Fulcrum Metals are beginning to separate themselves from a broad sector theme. Panther has been building the Winston case through systematic sampling, assay batches and work toward a Mineral Resource estimate, while Fulcrum has been pushing Teck Hughes through optimisation, metallurgical testing and now pilot plant funding. The shared direction is clear, both companies are trying to prove that surface material left behind by previous operators can become a modern project rather than a historical liability.
For retail investors, that shifts the focus from excitement to evidence. The next stage is not about whether “gold from waste” sounds attractive, it is about whether each company can produce numbers that survive technical review and commercial scrutiny. That means the key milestones are now practical ones, resource definition, recovery performance, pilot plant execution, permit progress and funding discipline. This is where the theme either becomes a credible route to cash flow or remains an interesting idea waiting for harder proof.
Share prices show the market is starting to separate the stories
The market reaction since the original article suggests investors are no longer treating Panther Metals and Fulcrum Metals as the same type of tailings story. In September, both companies could be viewed through a similar lens, two London listed juniors trying to turn historic mine waste into recoverable metal value. Since then, the share price charts show a clearer split. Panther’s move has been sharper and more sustained, while Fulcrum has shown a more uneven recovery, despite arguably making one of the more important operational steps with its recent pilot plant funding.
That contrast is useful because it tells us something about how the market is reading the two investment cases. Panther’s stronger move appears to reflect a broader re-rating, with Winston now supported by assay progress, a developing Mineral Resource pathway, critical metals optionality, Obonga drilling plans and the proposed Canadian listing. The market is not simply valuing Winston as a tailings clean-up project, it seems to be giving Panther credit for a wider Canadian platform where tailings, exploration and market access all sit together.
Fulcrum’s share price action looks more cautious, but that does not necessarily mean the story has weakened. In fact, the company’s recent £6m funding package arguably makes the investment case more tangible than it was in September. The difference is that Fulcrum is now being judged on a narrower but harder milestone, whether Teck Hughes can move from laboratory and optimisation work into credible pilot scale performance. That makes the next phase more binary, but also potentially more meaningful if the data continues to support the process route.
For retail investors, the lesson is not simply that one share has performed better than the other. It is that the market is beginning to price two different kinds of risk. Panther carries the risk and upside of a broader portfolio re rating, while Fulcrum carries the risk and upside of proving a specialist waste to metal model. The follow up question is therefore not which company has the cleaner story on paper, but which one can now deliver the next set of technical and commercial milestones in a way that justifies the market’s changing view.
Panther Metals, Winston becomes a resource definition story
For Panther Metals, the most important shift since September is that Winston is no longer just being presented as a clever way to reprocess historic mine waste. It is moving toward the more disciplined stage of resource definition. The company has now completed a systematic sampling programme across the Winston Tailings Project, with the work designed to support a maiden Mineral Resource estimate and help define the technical basis for future recovery studies. That matters because the market can only carry a tailings story so far on concept alone, eventually it needs tonnage, grade, recoveries and a credible development path.
The latest Winston update showed that the sixth and final batch of assay results had been received from the vibracore sampling programme. Panther said the full programme covered 109 collar locations across the tailings storage facility, with tailings thickness reaching up to 16.8 metres and averaging 8.7 metres. Those figures are important because tailings projects depend less on a single spectacular intercept and more on continuity, volume and consistency across the surface material. In simple terms, Winston is starting to look less like a historic clean up exercise and more like a measurable inventory of potentially recoverable metals.
The company’s April technical presentation frames Winston around the recovery of gold, gallium, silver, zinc, copper, indium and cobalt from the historic Winston Lake Mine tailings facility. It also notes that the original mine operated from 1988 to 1998 and produced approximately 3.3 million tonnes of ore, leaving behind material that Panther now believes may still carry meaningful residual value. The inherited site infrastructure is a further advantage, with grid power, all weather road access, water infrastructure, a water treatment plant, site office and security fencing already in place. For a junior company, that kind of existing footprint can be highly relevant because it may reduce the amount of new capital needed before a project can be properly assessed.
The next test is whether Panther can convert this fieldwork into a resource and then into a viable processing route. The company has said that SRK Exploration is undertaking the Mineral Resource estimate, while future metallurgical work is expected to examine how the metals can be recovered in practice. That is where the Winston story becomes more serious. Investors now have something tangible to watch, not just whether the tailings contain value, but whether the company can define that value to a recognised standard and then show a credible path to extracting it.
Panther’s critical metals angle broadens the Winston opportunity
The Winston story is not only about gold. One reason Panther Metals has attracted more market attention is that the tailings project also carries a wider critical metals angle, including gallium, zinc, copper, indium and cobalt. That matters because a simple gold recovery story can be attractive when the gold price is strong, but a polymetallic tailings story has the potential to become more strategically relevant if testing shows that additional metals can be recovered economically. For Panther, the opportunity is therefore not just to clean up historic mine waste, but to assess whether Winston can support multiple revenue streams from material already sitting at surface.
The company’s recent Winston updates have reinforced that broader picture. Batch results from the vibracore programme have pointed to the presence of gold, silver, zinc and other elements across the tailings storage facility, with the latest assay work feeding into the Mineral Resource estimate now being prepared. The key issue is not simply whether these metals are present, but whether they can be recovered through a process route that is technically reliable, commercially sensible and acceptable under Ontario’s recovery framework. That is where the next phase of metallurgical testing becomes important.
Gallium is the most interesting part of this wider story because it gives Winston exposure to a metal that has moved into the strategic supply chain conversation. Panther’s technical presentation describes Winston as a project targeting recovery of gold, gallium, silver, zinc, copper, indium and cobalt from the historic tailings facility, which makes it more than a conventional precious metals clean-up project. The inclusion of these metals does not automatically mean they will all become payable products, and investors should be careful on that point. But it does give Panther optionality that could strengthen the economics if recovery work confirms a practical route.
That is why Winston is becoming a broader test of value extraction rather than a narrow gold tailings story. The first milestone is defining the resource, but the more important commercial question is how much of that resource can eventually be turned into saleable product. If gold provides the base case and critical metals provide additional upside, Panther may have a project that speaks to both near term cash flow and strategic materials demand. The risk, as always, is that metallurgy will decide how much of that promise survives contact with the real world.
Obonga and the proposed CSE listing add a second leg to Panther’s case
The other reason Panther Metals has begun to look different from a simple Winston tailings story is that the company now has a broader Canadian platform around it. Winston may be the nearer term cash flow opportunity, but Obonga gives Panther a conventional exploration leg with district scale potential. That combination is important because it allows the market to consider two routes to value, one based on reprocessing material already at surface, the other based on new discovery potential across a large Ontario land package.
Obonga is particularly relevant because Panther is not presenting it as a loose collection of early stage claims. The company’s latest technical presentation describes the project as covering more than 255 square kilometres on the Obonga Greenstone Belt, with multiple VMS targets and confirmed high grade zinc mineralisation at Wishbone. The latest drilling update also shows that preparation work is now under way ahead of the planned programme, which gives investors another near term news stream alongside Winston.
The proposed Canadian Securities Exchange listing adds a further layer to that story. Panther’s prospectus filing is designed to broaden the company’s investor reach in the market where its assets are located. For a junior with Ontario projects, that is not just a branding exercise. A Canadian quote can improve visibility with domestic mining investors, potentially support liquidity, and make the company easier to understand for investors who already follow critical minerals and junior exploration stories in the region.
That is why Panther’s recent market move should not be viewed only through the lens of Winston. The tailings project remains the most immediate route to proving the “waste into value” thesis, but Obonga and the proposed CSE listing give Panther a wider platform than it had when the first article was written. The risk is that a broader story can also mean more moving parts, with capital, management attention and market expectations spread across several workstreams. The opportunity is that, if Winston continues to de risk while Obonga adds exploration momentum, Panther could be judged as more than a single project tailings recovery play.
Fulcrum Metals, Teck Hughes moves from concept toward pilot plant
For Fulcrum Metals, the follow up story is more focused than Panther’s. The company is not trying to sell investors a broad exploration platform first, it is trying to prove that historic tailings can be turned into a repeatable waste to metal business. Teck Hughes sits at the centre of that strategy. Since the September article, Fulcrum has moved the project through further drilling, optimisation work, metallurgical testing and funding, which makes the investment case more concrete than it was when the story was mainly about potential.
The most important point is that Teck Hughes is now being shaped around a defined process route. Fulcrum’s updates have included auger drilling, assay results, multi element analysis and recoveries from its cyanide free processing work with Extrakt. The company reported more than 70% gold and silver recoveries at Teck Hughes, which was a key step because recovery performance is where a tailings story either strengthens or starts to fall apart. Historic grades matter, but the commercial question is how much metal can actually be recovered, how quickly, and at what cost.
The latest Fulcrum presentation frames Teck Hughes as a near term production opportunity, with an estimated 6.5 million tonnes grading 0.66g/t gold for around 138,000 ounces, although those figures remain historic and not 43 101 compliant. It also presents Sylvanite as a second project, with estimated historic inventory of 4.2 million tonnes at 0.47g/t gold for around 67,000 ounces. That gives Fulcrum an estimated 205,000 ounces of gold across the two initial Kirkland Lake tailings projects, before any additional value from silver, gallium, tellurium or other elements is properly tested and incorporated.
The move toward a pilot plant is therefore the natural next step. Bench scale and optimisation results can make a tailings project look attractive, but pilot testing is where the company has to show that recovery, dewatering, reagent reuse and material handling can work in a more realistic operating environment. For investors, Teck Hughes is now less of a concept story and more of an execution story. The next question is whether Fulcrum can convert its laboratory progress into pilot scale data strong enough to support a future economic study and, eventually, a production decision.
Fulcrum’s £6m funding changes the near term risk profile
The clearest change in Fulcrum’s story is the recent £6m funding package, which gives the company a defined route into the next phase of Teck Hughes development. In a small cap mining market where many good technical stories stall because of funding gaps, that is an important shift. The company is no longer only asking investors to wait for more optimisation results, it now has capital earmarked for pilot plant development, testing and the practical work needed to move the project closer to a commercial decision point.
The funding is designed to fully support the pilot plant programme, including long lead equipment, site procurement, services, fabrication, assembly and pilot operations. That matters because tailings reprocessing is ultimately an engineering and execution story, not just a geology story. Fulcrum has already reported strong recovery work at Teck Hughes, but the next stage is about proving that the process can operate in conditions that look more like a real project. The £6m funding therefore reduces one of the most obvious near term risks, the risk that the company had a promising process but not enough capital to test it properly.
It does not remove the main execution risks. Fulcrum still has to deliver the pilot plant, manage equipment timelines, validate recoveries at scale, prove dewatering performance, and show that water and reagent reuse can support a sensible operating model. Investors also need to watch the funding structure carefully, because junior companies can secure capital in ways that still create dilution or future obligations. But compared with the position last September, Fulcrum has moved from a story built around technical promise to one with a funded test of that promise.
That is why the market may need time to digest the importance of this step. Pilot plant funding is not as visually exciting as a discovery hole or a sharp share price breakout, but it can be more important in a tailings project. If the pilot work confirms recoveries, handling, cost assumptions and operating repeatability, Fulcrum’s case becomes much stronger. If it disappoints, the story becomes harder. Either way, the £6m package has moved Teck Hughes into a more serious phase, where the next answers should come from process data rather than promotional narrative.
Technology becomes the key battleground, Extrakt, recoveries and dewatering
The next phase for both companies will be decided less by the presence of metal and more by the process used to recover it. Tailings can look attractive on paper because the material is already mined and sitting at surface, but the commercial value only appears if recoveries, reagent use, water handling and final tailings management all work together. That is why technology has become the key battleground. It is not enough to show that gold, silver or critical metals are present, the companies now have to show that those metals can be recovered cleanly, consistently and at a cost that supports a real project.
Fulcrum has placed this issue at the centre of its strategy through its work with Extrakt. The company has reported more than 70% gold and silver recoveries from Teck Hughes using cyanide free technology, and its latest presentation describes a process focused on leaching, dewatering, water recovery and reagent reuse. That is important because a tailings project is not only judged by the ounces it can recover. It is also judged by whether the process creates a cleaner, manageable residue and whether the operating model can be repeated across more than one site.
Panther is also moving into the same technical territory at Winston. Its assay work has helped define the potential metal inventory, but the next step is metallurgical testing, where the company needs to understand how gold, gallium, silver, zinc, copper, indium and cobalt behave under different recovery routes. The company has already referenced Extrakt and TDI Solutions as part of its planned metallurgical work around Winston, while SRK Exploration is handling the Mineral Resource estimate. That means Panther’s story now has two linked tests, first defining what is in the tailings, then proving what can realistically be recovered from them.
This is where investors should be careful with the word “contained”. A tailings facility may contain valuable metals, but contained value is not the same as recoverable value, and recoverable value is not the same as profitable production. The winners in this part of the market will be the companies that can close that gap with evidence. For Fulcrum, that means pilot plant data strong enough to support future economics. For Panther, it means resource work and metallurgy that turn Winston from a promising inventory into a credible recovery project.
Two different routes to the same prize, portfolio re rating versus specialist tailings platform
The comparison between Panther Metals and Fulcrum Metals is now more useful because the two companies are no longer moving along identical tracks. Both are trying to extract value from historic mine waste in Ontario, and both are working within a market that is more interested in lower impact, surface accessible metal recovery than it was a few years ago. But the way they are building their investment cases has started to diverge. Panther is becoming a broader Canadian platform story, while Fulcrum is becoming a more concentrated test of whether a specialist tailings model can be scaled.
Panther’s appeal now sits in the combination of Winston, critical metals, Obonga and the proposed Canadian listing. Winston gives the company a potential route to nearer term cash flow, but Obonga adds discovery upside, and the CSE plan may help connect the company with a deeper pool of Canadian mining investors. That makes Panther the more diversified of the two stories. The reward for investors is that there are multiple ways the valuation could be supported, but the risk is that multiple workstreams also require careful capital allocation and consistent delivery.
Fulcrum’s case is more focused. The company is not trying to be judged on a broad exploration portfolio, it is trying to prove that Teck Hughes, Sylvanite and the Extrakt process can form the basis of a repeatable waste to metal platform. The recent £6m funding package sharpens that point, because the next phase should generate practical pilot plant evidence rather than simply more conceptual support. If Fulcrum can show that the process works at scale, its narrower focus could become a strength.
That leaves investors with two different forms of exposure to the same broad theme. Panther offers a portfolio re rating story, with Winston as the cash flow candidate and Obonga as the exploration kicker. Fulcrum offers a specialist commercialisation story, where the value depends heavily on process performance, pilot plant execution and the ability to replicate the model across additional legacy sites. Neither route is risk free, but both are now more clearly defined than they were when the original article was written.
What investors should watch next, MREs, pilot plant results, permits and funding discipline
The next stage should give investors a much clearer view of which company is turning the tailings theme into a real commercial opportunity. For Panther, the most important milestone is the Winston Mineral Resource estimate. The recent final batch of assays has completed the key sampling sequence, but the market now needs to see how that data translates into tonnage, grade and resource confidence. From there, metallurgy and permitting will become the real tests of whether Winston can move from inventory to recovery project.
Panther investors should also watch the pace of Obonga drilling and the proposed CSE listing. Obonga can add exploration excitement, but it should not distract from the need to keep Winston moving through resource, metallurgy and permit milestones. The Canadian listing is also worth watching because it could improve visibility, but only if it is supported by credible technical progress. A broader story is useful, but only when the individual parts continue to move forward.
For Fulcrum, the key watch item is the pilot plant programme. The company has secured funding for the next stage, but the market will want evidence on equipment delivery, site preparation, operating performance, recoveries, dewatering, water reuse and reagent management. The earlier recovery numbers were encouraging, but pilot plant work is the step that should show whether those results can be repeated in a more realistic operating environment. That is where Fulcrum’s technology led model will either gain credibility or face harder questions.
The wider lesson is that tailings stories should be judged by proof, not promise. Contained metal, historic estimates and strong commodity prices all help, but they do not remove the need for disciplined technical work and sensible financing. Panther now needs to turn Winston into a recognised resource and then into a credible recovery route. Fulcrum needs to show that Teck Hughes can move through pilot testing toward an economic development case. If both companies deliver, the original “gold from waste” idea will have matured into something more serious, a practical race to see who can turn legacy material into investable production.
*All information correct at time of first publication (22/05/26)
Disclaimer: The information presented in this article represents the views and analysis of the author and is provided for informational purposes only. It should not be interpreted as financial, investment, or legal advice. Investors should conduct their own due diligence and consult a qualified adviser before making investment decisions. Investing in AIM-listed companies involves risk, and past performance is not indicative of future results.
