Empire Resources Uncovers Rare Earth Signal Across 3.2km at Yuinmery
Key Takeaways
- Rare earth oxide (REO) and phosphate mineralisation has been identified across three prospects — YT01, YT02 and YT19 — spanning over 3.2km of strike at Empire Resources' Yuinmery project in Western Australia.
- The finding required no new drilling: Empire extracted the full REE suite from archived 2019–2020 laboratory assay data, making this an exceptionally low-cost early-stage discovery step.
- The standout historic intercept is hole YRC20-15, which returned 3,147ppm TREO+Y over 1m at 152–153m depth, with multiple other holes exceeding 1,200ppm TREO+Y across YT01 and YT19.
- REO mineralisation occurs in phosphate minerals including monazite and xenotime, which respond to froth flotation beneficiation — the same process that delivered a 59x ore upgrade at nearby peer Victory Metals' North Stanmore project.
- Shallow follow-up drilling is tentatively scheduled for November 2026, contingent on encouraging results from the full REE data extraction currently underway across all archived and recent drilling at YT01, YT19 and YT02.
Rare earth opportunity emerges at Yuinmery as Empire reviews historical drill data
A new commodity dimension is emerging within Empire Resources Limited’s (ASX: ERL) existing Yuinmery copper-gold project in Western Australia. Rare earth oxide (REO) and phosphate mineralisation has been identified across the YT01, YT02 and YT19 prospects, spanning over 3.2km of strike.
Importantly, this is not new drilling. The discovery stems from a 2026 review of archived 2019–2020 assay data where the full rare earth element (REE) suite was extracted from laboratory archives. Empire extracted the data from laboratory archives rather than putting a drill rig in the ground, making this an exceptionally low-cost early-stage finding.
Should follow-up data prove encouraging, a drill rig has been tentatively booked for November 2026, with sample material to be sent for beneficiation metallurgical work at an independent laboratory.
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What are magnetic rare earths and why do they matter?
Rare earth oxides (REOs) are a group of metallic elements used in high-technology manufacturing. Within that group, the magnetic rare earth oxides (MREOs) carry the greatest commercial demand. These include neodymium (Nd), praseodymium (Pr), dysprosium (Dy) and terbium (Tb), all of which are essential inputs for permanent magnets used in electric vehicle motors, wind turbines and defence applications.
What distinguishes Yuinmery’s emerging REO story is the mineralogy. The REOs here occur in phosphate minerals such as monazite, xenotime, rhabdophane and churchite varieties. These minerals respond to froth flotation beneficiation, a process that physically separates and upgrades ore into a high-grade concentrate. This is distinct from ionic clay deposits, which typically require leaching and precipitation of low-grade ores.
The commercial significance of froth flotation is illustrated by a nearby peer. Victory Metals (ASX: VTM) reported that pilot plant test work at their North Stanmore HRE Project near Cue delivered a 59x ore upgrade, moving from 1,195ppm TREOY raw feed to approximately 7.09% TREOY concentrate. Empire’s announcement notes that MREO grades at Yuinmery are comparable to those reported at North Stanmore, which is also located in the Murchison region.
What the drill results show across YT01, YT02 and YT19
Two distinct data sets inform the picture: historic results from 2020 assaying conducted on YT01 samples, and newly extracted archived data from 2019 AC and RC drilling across YT01, YT19 and YT02. Neither data set represents new drilling; both involve the extraction of archived data from historical assay work.
From the historic 2020 results, the standout intercept is hole YRC20-15, which returned 3,147ppm TREO+Y over 1m at 152–153m depth. Other notable historic intercepts include YRC20-28 (2,864ppm over 1m) and YRC20-14 (1,905ppm over 1m).
The newly extracted archived data revealed elevated REO-phosphate values across multiple holes. The table below summarises selected key intercepts from Table 2 of the announcement.
| Hole | Prospect | From–To (m) | Width (m) | TREO+Y (ppm) |
|---|---|---|---|---|
| YAC19-11 | YT01 | 8–16 | 8 | 1,712.5 |
| YAC19-09 | YT01 | 12–16 | 4 | 1,455.5 |
| YAC19-06 | YT19 | 28–36 | 8 | 1,315.5 |
| YAC19-02 | YT19 | 16–20 | 4 | 1,265.9 |
| YAC19-03 | YT19 | 0–8 | 8 | 1,237.9 |
At YT01, the higher-grade REO+Y intercepts in holes YAC19-09 and YAC19-11 are located 100–160m south of the Cu-Au prospect. Mineralisation remains open along strike, which the announcement flags as potentially presenting an opportunity for resource discovery.
At YT19, holes YAC19-02 and YAC19-04 recorded elevated REO mineralisation and appear to be located over a magnetic high, which the company identifies as a potential future drill target.
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Next steps: low-cost data extraction followed by potential November drilling
Empire’s near-term path is two-staged and deliberately capital-efficient. First, the company has requested Perth laboratories to extract the full REE data from all archived and recent drilling across YT01, YT19 and YT02. This is described as a low-cost, early assessment of the REO+Y and MREO+Y potential at these prospects, leveraging existing archived laboratory data before committing to new drill spend.
Second, should that follow-up data prove encouraging, shallow drilling is tentatively planned for November 2026. That drilling programme would also generate sample material for beneficiation metallurgical work at an independent laboratory.
Non-Executive Chairman Michael Ruane addressed the early-stage nature of the work:
Michael Ruane, Non-Executive Chairman
“We are very excited to learn more of the rare earth-phosphate connection at Yuinmery. Obviously, this project is in its infancy relative to the new REO data. We are looking forward to receiving the remaining data from the laboratories.”
Empire Resources (ASX: ERL) is a gold and copper-focused explorer with two projects: Yuinmery, located 470km northeast of Perth in the Youanmi Greenstone Belt, and Penny’s Gold, 45km northeast of Kalgoorlie. The REO-phosphate angle is an emerging layer on top of the existing Cu-Au exploration story, and as the chairman notes, it remains at an early stage. Investors should consider this in the context of an exploratory project where the full data picture is still being assembled.
The REO-phosphate story sits on top of an active copper-gold exploration at Yuinmery, where Empire has been advancing its primary Cu-Au drilling program across the same project tenure in Western Australia’s Youanmi Greenstone Belt.
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