Aussie rare earths juniors shine as US dollars flood Mountain Pass mine

West Australian

14 hours ago

There are moments when policy collides with geology, and when it does, fortunes can shift overnight. Last week, the United States Department of Defence (DoD) took a blowtorch to global critical minerals strategy, inking a transformative agreement with MP Materials to accelerate rare earth magnet independence.
And just like that, a cluster of ASX-listed explorers, not just in and around MP's Mountain Pass mine in California, but also those with the potential for critical low-cost rare earth production in other favourable locations, find themselves thrust into the geopolitical spotlight. Locksley Resources, Dateline Resources, Bayan Mining and Minerals, Viridis Mining and Minerals, Eclipse Metals and Red Metal might not be household names. But each holds a piece of ground that now looks an awful lot more valuable, simply because of where it is and what it could become. Welcome to the new world of critical mineral real estate, where the Pentagon is your neighbour and proximity might be among the best commodities of all. The MP deal is a monster. It will see the DoD become MP Materials' biggest shareholder, underwrite a 10-year offtake agreement for rare earth magnets and bankroll building a second US processing facility. It's not just about shovels and ore - this is industrial policy at full throttle. The goal? Break China's grip on the global magnet supply chain and resurrect a wholly American capability from mine to magnet. And at the centre of it all is MP's Mountain Pass - the only operational rare earths mine in the US. Zoom out just a few kilometres and you'll find ASX-listed Locksley Resources with its El Campo project sitting neatly along strike from Mountain Pass. Its tenements are surrounded on all sides by MP's holdings. It has rock chip samples grading up to 12.1 per cent total rare earth oxides and 3.19 per cent neodymium-praseodymium (NdPr). MP Materials even tried to muscle in - unsuccessfully challenging Locksley's title with the Bureau of Land Management. The bureau sided with the junior, and now drilling permits are in hand with rigs set to roll in September. According to Locksley managing director Nathan Lude, the significance of the MP deal could not be greater: '
This is the most assertive US industrial policy move since the global financial crisis, and it places Locksley in a unique position to benefit from this strategic realignment. With two fully permitted projects in California, including our El Campo rare earths and Desert antimony assets, we are focused on advancing our multi-commodity, critical minerals drilling programs in the next eight weeks and truly look forward to the opportunity ahead for our investors
.' Notably, as well as its El Campo project, Locksley holds the Desert antimony mine, historically mined in the 1930s. With surface samples returning up to 46 per cent antimony and approvals now locked in, the project adds a critical minerals angle the US government might just find hard to ignore. After all, antimony imports currently account for more than 80 per cent of US demand with most of it coming from China. Another neighbour is Dateline Resources, the owner of the Colosseum project, just 10km from Mountain Pass. Historically explored for gold, Colosseum holds a 27.1 million tonne JORC-compliant gold resource at 1.26 grams per tonne (g/t) - a glittering prize in its own right.
But new magnetotelluric data suggests Colosseum might also be sitting on the same kind of carbonatite system that hosts Mountain Pass - a rare trifecta of gravity high, magnetic low and intermediate resistivity. The company is now preparing to drill for rare earths, with a direct line of communication already established with US Secretary of the Interior Doug Burgum, who described the reopening of Colosseum as a strategic move in America's quest for critical mineral independence. There's also Bayan Mining - arguably the newest entrant - but already in the thick of it. Bayan recently picked up a rare earth tenement 4.5km northeast of Mountain Pass and launched its Desert Star exploration program, targeting radiometric anomalies linked to carbonatite and alkaline systems. The company has already completed surface sampling, with assay results pending. Bayan's geology team is focused on Mesoproterozoic intrusive complexes, notably the same recipe that gave rise to Mountain Pass. Bayan executive director Fadi Diab says the address is no accident. '
The project's strategic location, just 4.5km northeast of the world-class Mountain Pass REE mine, offers significant potential,
' he says. '
We're aiming to validate surface mineralisation and gain crucial insights into the geochemical and structural characteristics of the system
.' But the story isn't confined to California. If the Pentagon's funding blitz is phase one of America's reshoring agenda, then phase two is about building resilient supply chains that extend beyond US borders - and that's where companies such as Viridis Mining, Red Metal and Eclipse Metals come in. Viridis is making serious waves in Brazil, where it has just produced a pre-feasibility study over its Colossus rare earths project, which looks to potentially be the world's lowest-cost rare earth project. It is in the prolific Poços de Caldas Alkaline Complex in the state of Minas Gerais.
The company has also just delivered its first rare earth oxide shipment from decommissioned MRI machines to Latin America's only magnet manufacturer, a milestone that completes the 'mine to magnet' loop within the Americas. Viridis has been selected for support by Brazil's national development bank BNDES and its strategic funding partner FINEP under a program designed to accelerate critical mineral production. It has also laid out plans to develop a rare earth refinery targeting US export markets, firmly positioning itself as a bridge between Latin American mineral wealth and North American industrial demand. Australia is also host to another intriguing project with Red Metal progressing its Sybella rare earths project near Mount Isa in Queensland - and doing it with a cost-conscious twist. The company is investigating heap leach recovery for its mineralised saprolite, a lower-cost alternative to traditional extraction methods. Optimisation test work has confirmed up to 71 per cent TREO recovery with a modest acid consumption profile. It's early days, but in a world where economics matter as much as geology, Red Metal's unconventional approach might pay some serious dividends. Red Metal's managing director Rob Rutherford told Bulls N' Bears the deal struck between the US DoD and MP Materials is potentially a big win for low-capex, low-opex projects all around the world.
'
We are very confident our Sybella project will sing at this NdPr floor price. It is now up to other manufacturing nations like South Korea, Japan, Europe and even Australia to invest in expanded magnet capacity with REO supply guaranteed with similar price flooring mechanisms,
' Rutherford said.
The price flooring mechanism Rutherford is referring to is the DoD's guarantee to pay a minimum of US$110 per kilogram (A$167/kg) for MP Materials' NdPr produce as part of its deal. This is hugely significant because, while the spot price market for NdPr is extremely opaque, by any estimate, the US floor is significantly higher than current prices, possibly by as much as 40 per cent.
'
I strongly believe the Australian Government should jointly fund and build magnet plants in these resource-poor manufacturing nations, government to government, on the provision they utilise Australian raw REO materials,
' he said. There is one other project that may be as isolated as any in the world, but which appears to have the exact mix of what's in demand in a location where US President Donald Trump has already turned his eye. Eclipse Metals, with its Ivigtût project in Greenland, is playing a long game from a different part of the geopolitical chessboard. The project hosts both historical cryolite mines and the Grønnedal rare earths deposit. And while it might seem remote, it's exactly the kind of jurisdiction now finding favour with the US and European Union. Eclipse's project has been flagged by the European Commission as under active consideration for strategic project designation under the Critical Raw Materials Act. The area holds archived drill core with confirmed rare earths content and sits within a geostrategic zone where both US and EU interests overlap. Speaking with
Bulls N' Bears
shortly after the MP news broke, Eclipse managing director Carl Popal said the key gap in building a fully integrated US domestic supply chain for permanent magnets is that Mountain Pass alone cannot carry the burden. '
Mountain Pass won't be enough to support the massive demand for the production of high-performance magnets,
' Popal said. Greenland has long been eyed by American policymakers for its critical minerals potential and Eclipse's dual listing and advancing resource work could place it in the sweet spot for future government support, particularly as Europe and the US deepen their alignment on critical raw material supply. Intriguingly, Matt Sloustcher, who oversees government relations and communications at MP Materials, is on record saying the company and the DoD are already looking to collaborate on the sourcing of third-party rare earth feedstock. It wouldn't be a stretch to think that any of these companies are part of these 'third-party' discussions. Taken together, all of this isn't just a series of disconnected exploration stories and observations. It's a single strategic narrative: a Western alliance trying to wrest control of the rare earths supply chain away from China — and doing it with increasing urgency. For ASX-listed juniors with the right mix of address, geology and timing, the upside may be bigger than any single drill hit. Locksley, Dateline and Bayan are walking the ground around Mountain Pass. Viridis, with an ultra-low-cost PFS just tabled, is already shipping product in Brazil. Eclipse is drilling in a place that's suddenly on Washington's radar and Red Metal is carving out a cheaper path to production. Each company is now a subplot in a much larger saga - one where government funding, supply chain realignment and geopolitical calculus are every bit as important as what's in the core. Investors chasing critical mineral leverage might do well to stop looking only at majors with billion-dollar capex and long permitting timelines. The smarter money might already be poking around the juniors sitting quietly on the doorstep of America's rare earth revival, or at the very least, within a diplomatic handshake of it.
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