Dreadnought Lodges Mining Lease for Yin Rare Earths Backed by 30Mt Resource
Key Takeaways
- Dreadnought has submitted mining, general purpose, and miscellaneous lease applications for the Yin rare earth deposit at Gifford Creek, marking a formal entry into the approvals and study pathway toward commercial production.
- The Yin Resource stands at 29.98Mt @ 1.04% TREO (~88% Measured & Indicated), with a higher-grade subset of 11.63Mt @ 1.93% TREO containing 224.3kt of contained TREO.
- Yin's NdPr:TREO ratio is more than 50% above the global average, meaning a disproportionately large share of the deposit is made up of the high-value magnet metals used in EVs, wind turbines, and defence systems.
- Metallurgical test work has demonstrated recoveries of 85.9% to 92.8% using a conventional low-temperature acid bake/leach process, producing a high-quality intermediate product of 60.7% TREO with ~94% recovery of Nd and Pr.
- The Yin Resource covers only ~4.6km of ~43km of rare earth-bearing ironstone strike identified at Gifford Creek, leaving the vast majority of the complex untested and open for resource expansion.
Dreadnought lodges mining lease application for Yin rare earth deposits at Gifford Creek
Dreadnought Resources (ASX:DRE) has submitted mining, general purpose and miscellaneous lease applications for Yin, part of its 100%-owned Gifford Creek Critical Metals Project in Western Australia’s Gascoyne region. The applications are underpinned by the existing Resource of 29.98Mt @ 1.04% TREO (~88% Measured & Indicated), including a higher-grade 11.63Mt @ 1.93% TREO.
The applications also cover supporting infrastructure for an open pit mine and haul operation. This advances Yin toward commercial optionality amid renewed global rare earth market interest and growing government investment in secure supply chains.
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What the lease applications cover
The three application types submitted collectively enable an open pit mine plus supporting haul and infrastructure:
- Mining Lease: Permits extraction of the Yin rare earth deposits
- General Purpose and Miscellaneous Leases: Cover supporting infrastructure for the open pit mine and haul operation
This is a key component of the approvals and study pathway. The applications are pending grant — the leases have not yet been granted.
| Cut-off | Tonnes (Mt) | TREO (%) | Contained TREO (kt) | Classification |
|---|---|---|---|---|
| 0.20% TREO | 29.98 | 1.04 | 312.3 | ~88% Measured & Indicated |
| 1.00% TREO | 11.63 | 1.93 | 224.3 | Higher-grade subset (~94% Measured & Inferred) |
The Yin Resource was announced on 30 November 2023 and covers only ~4.6km of ~43km of rare earth-bearing ironstone strike identified at Gifford Creek, highlighting further upside potential.
Why rare earths matter — and why Yin stands out
TREO (Total Rare Earth Oxide) is the aggregate measure of all rare earth elements in a deposit. Within TREO, NdPr (neodymium-praseodymium) drives value — these are the critical magnet metals used in permanent magnets for electric vehicles, wind turbines, and defence systems. The NdPr:TREO ratio tells you what share of the total rare earths in a deposit is made up of these high-value elements.
Yin’s NdPr:TREO ratio is >50% higher than the global average, meaning a greater share of high-value magnet metals. This improves the commercial economics — you are extracting proportionally more of what the market values most.
Yin’s rare earth mineralisation is predominantly hosted in monazite, which is amenable to commercial processing. Renewed government interest and investment in rare earth supply chains globally underscores the strategic backdrop. Supply chain security, the low-carbon transition, and geopolitical tension are driving capital into domestic and allied critical mineral projects.
Strong metallurgy backs the resource
Metallurgical test work from Yin has performed well:
- Recoveries of 85.9% to 92.8% at concentrate grade of 10.76% to 15.31% Nd2O3+Pr6O11
- ANSTO-demonstrated conventional low-temperature acid bake/leach process
- High-quality intermediate product of 60.7% TREO with ~94% recovery of Nd and Pr
This de-risked processing pathway supports commercial viability. The metallurgical work confirms that Yin’s monazite concentrate can be processed using proven methods with strong recoveries of the high-value magnet metals.
Gifford Creek — scale beyond Yin
Yin sits within the broader 100%-owned Gifford Creek Critical Metals Project — one of the largest carbonatite complexes in the world. The Yin Resource covers only ~4.6km of ~43km of rare earth-bearing ironstone strike, highlighting the scale potential across the complex.
The Gifford Creek Carbonatite hosts multiple critical minerals beyond rare earths: niobium, scandium, phosphorus, titanium, and zirconium. Wide-spaced drilling over less than 25% of the ~17km long Gifford Creek Carbonatite has already identified four zones of mineralisation. Standout intercepts include:
- CBRC115: 102m @ 1.1% TREO from 3m, including 29m @ 2.1% TREO from 76m
- CBRC195: 130m @ 0.7% Nb2O5 from 71m, including 39m @ 1.3% Nb2O5 from 84m
- CBRC194: 116m @ 10.5% P2O5 from 70m, including 20m @ 21.9% P2O5 from 138m
This multi-critical mineral mix expands the commercial optionality of Gifford Creek beyond rare earths alone.
Dean Tuck, Managing Director
“A key pillar of our Finding More Gold Faster Strategy is continuing to progress and maintain commercial optionality from our Gifford Creek Critical Metals Project. Since making the Yin discovery, Dreadnought has delivered multiple critical metal discoveries, substantial resources, key metallurgical test work and consolidated the region. Recently rare earth markets have seen substantial interest and investment from governments around the world. Accordingly, Dreadnought has recommenced study and approval related work on Yin. The applications for mining and supporting leases is a key component of approvals and study work and we look forward to progressing the leases to grant.”
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What comes next
The company has recommenced study and approval-related work for Yin and is conducting mineralogical and metallurgical test work for the Stinger discovery across upcoming quarters. Near-term catalysts include:
- September: Upgrade JORC Exploration Target — Gifford Creek
- September to March 2027: Gifford Creek air core & RC drilling
- Ongoing: Yin REE study-related work
The lease applications keep Yin advancing toward commercial optionality as rare earth market tailwinds strengthen. The approvals and study pathway is active, supported by a high-confidence Resource and proven metallurgy. Gifford Creek’s scale — only 4.6km of 43km of rare earth-bearing strike is currently captured in the Resource — positions the project for material upside as work progresses across the broader complex.
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