REG - Cobra Resources PLC - Rare Earth ISR System Beyond Boland
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RNS Number : 8040T Cobra Resources PLC 04 August 2025
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4 August 2025
Cobra Resources plc
("Cobra" or the "Company")
Confirmation of Rare Earth ISR System Beyond Boland
Re-analysis results support significantly enhanced project scale
Cobra (https://cobraplc.com/) (LSE: COBR)
(https://www.londonstockexchange.com/stock/COBR/cobra-resources-plc/company-page)
, the mineral exploration and development company advancing a potentially
world-class ionic Rare Earth Element ("REEs") discovery at its Boland Project
("Boland") in South Australia, is pleased to announce initial results from
re-analysis of historical, uranium-focused rotary mud drilling from a recently
acquired tenement (EL 6742) that covers over 750km(2) of the prospective
Yaninee Palaeochannel system (part of the package of tenements acquired from
Tri-Star Group announced on 27 May 2025).
Results indicate the presence of a REE system with characteristics reflective
of Boland on the Narlaby Palaeochannel 10-20km to the northeast. This
significantly increases the scale of the ionic REE system within the Pidinga
Formation amenable to low-cost, low disturbance In Situ Recovery ("ISR").
Initial results define two large higher-grade zones exceeding 80 km(2) that
flank the main incised channel, reflecting similar depositional geology to the
Boland Prospect.
Assay results have been derived from a drilling method that does not generate
a sample representative of the unique ionic REE mineralising system. The
results generated from re-analysis exceed initial results at Boland, where
subsequent Aircore and Sonic core drilling delivered high-grade, REE
mineralisation enriched in terbium and dysprosium within confined permeable
geology.
Rupert Verco, Managing Director of Cobra, commented:
"The extremely favourable results of our recent metallurgical testing have
given us the confidence to accelerate exploration over our vast footprint. The
utilisation of existing samples retained at the South Australian Drill Core
Reference Library allows us to refine targeting over a massive 750 square
kilometres of the Yaninee Palaeochannel without the additional cost of
drilling yet.
These initial results demonstrate that the Yaninee Palaeochannel has all the
ingredients required for our ISR-amenable rare earth mineralisation. Now that
confirmation of a mineralised system has been established, we will use the
additional pending samples to prioritise the areas with highest prospectivity
to proceed to drill targeting, where we expect to deliver higher grade
intersections through more appropriate drilling and sampling methods,
contributing further scale to the overall project."
Follow this link to watch a short video of CEO Rupert Verco explaining the
results released in this announcement:
https://investors.cobraplc.com/link/rD11xP
(https://investors.cobraplc.com/link/rD11xP)
Background
Rare earth mineralisation at the Company's Boland Project is enriched in
high-value magnet REEs - dysprosium and terbium. The unique geological setting
enables a controlled form of ISR, a low-impact, low-cost form of mining that
has bottom quartile cost potential.
REEs are absorbed to fine organic clays that occur within permeable
palaeochannel sands of the Pidinga Formation, where ongoing metallurgical
studies have demonstrated that they can be recovered at weak acidities. By
combining a low capital intensity mining process with a simple flowsheet,
Boland stands as an alternate, low-cost source of dysprosium and terbium with
high environmental stewardship.
Mineralogical studies currently underway with Australia's national science
agency, CSIRO, on the unique nature of Boland mineralisation have highlighted
the importance of particle size distribution within the mineralised Pidinga
Formation and its influence on ionic REE mineralisation.
Historical uranium-focused exploration was completed by rotary mud drilling, a
method that enables downhole geophysical measurements but yields poor sample
quality and subsequent poor recoveries of fine organic rich clays to which
REEs are absorbed. The Company does not consider the results to represent true
grades; however, they highlight prospective system fertility and will enable
the refinement of targets for follow-up drill testing.
Re-analysis results of 395 samples from 11 holes demonstrate:
· Enriched saprolites in contact with palaeochannel sediments, as
evidenced by:
o IR310 intersecting 8m at 2,412 ppm TREO (453 ppm Nd+Pr and 32 ppm Dy+Tb)
from 16m - this area will be prioritised for follow-up definition drilling
· Confirmed REE mobility and ionic absorption: Palaeochannel sediment
mineralisation intersections, including:
o IR310 intersecting 6m at 699 ppm TREO (116 ppm Nd+PR and 7 ppm Dy +Tb)
· Thick zones of low-grade, ISR recoverable mineralisation within the
Pidinga Formation, including:
o IR276 intersecting 8m at 961ppm TREO (257 ppm Nd+PR and 21 ppm Dy +Tb)
from 44m including 2m at 2,329ppm TREO (604 ppm Nd+PR and 50 ppm Dy +Tb) from
48m
o IR 307 intersecting 10m at 390 ppm TREO (72 ppm Nd+Pr and 6 ppm Dy+Tb)
from 32m
o IR 819 intersecting 26m at 229 ppm TREO (39 ppm Nd+Pr and 4 ppm Dy+Tb)
from 26m
· Results support the potential for an ionic REE system amenable to ISR
recovery over a significant scale within the Yaninee Palaeochannel
· A further 1,024 results expected later this month
· An emerging control on ISR recoverable mineralisation, a geological
depositional sequence that flanks incised deeper channels and is interpreted
to represent a flooding sequence that hosts higher grade mineralisation within
the Pidinga formation.
Yaninee Palaeochannel Re-Assay Results
620 select samples from 30 holes across the EL 6742 section of the Yaninee
Palaeochannel have been received. Results demonstrate the presence of a rare
earth system with characteristics reflective of Boland on the Narlaby
Palaeochannel 10-20km to the northeast. The key geological indicators:
· Enriched REE mineralised source - saprolite of the Hiltaba suite
granite
· Mobility of REEs from saprolites to Permeable, organic rich sediments
within the Pidinga Formation
· Overlying aquitard - Garford Formation
Within these components, under amenable chemical conditions, rare earths can
mobilise from the enriched saprolite into the permeable and organic rich
sediments. The presence of the aquitard provides a practical barrier between
the upper oxidised meteoric groundwater and the lower aquifer hosting the
target stratigraphy.
Figure 1: Significant intercept collar locations - historic sample re-analysis
from EL 6742 with previously reported historic sample re-analysis from EL 6806
Historical samples retained at the South Australian Drill Core Reference
Library were drilled using rotary mud techniques. This technique does not
provide suitable sample representation for this style of mineralisation but
does provide indicative results that establish an understanding of the
geological system and areas of higher mineralisation potential. These results
allow for delineation at significant scale at a very low cost, improving
targeting for maiden drill testing. Rotary mud drilling is unlikely to
completely recover the fine component of a sedimentary sample, and therefore
is expected to under-report ISR amenable rare earth mineralisation of this
nature.
Figure 2: IR 819 from the Yaninee Palaeochannel intersects broad
mineralisation within the Pidinga Formation, directly overlying weathered
saprolite. Dark, organic rich sands in the Pidinga hosts REE mineralisation
similar to Boland initial reanalysis results from Boland. Each sample bag in
each photo represents a 2m drill interval
Figure 3: IR 117, a historical rotary mud drillhole located 350m from the
Boland Wellfield, where subsequent sonic drilling has yielded a wellfield
grade of 2,099 ppm TREO over 0.8m. Each sample bag in each photo represents a
2m drill interval
Assay results recovered from rotary mud drilling are indicative results only
and are expected to only reflect a portion of the fine material hosting ISR
amenable rare earth mineralisation. Size fraction analysis completed by the
CSIRO on samples collected from the recently completed Sonic drill programme
highlight a unique particle distribution through the mineralised portion of
the Pidinga Formation. The finer fraction which hosts REE mineralisation is
unlikely to be adequately represented within samples recovered through this
drilling technique.
Figure 4: CSIRO size fraction analysis image against grade from sonic
drillholes, highlight the bimodal distribution of sediments within the
mineralised Pidinga Formation
Next Steps
An additional 1,024 samples from the Drill Core Reference Library have been
submitted for analysis. These samples will provide indicative coverage over
the Narlaby and Yaninee Palaeochannels on EL 6742, EL 6774, EL 6780, and EL
6806. These samples will help in assessing a further 600km(2) of prospective
ground within an extension of the geological setting found at Boland.
The results of these sample programmes will inform scheduled on-ground
exploration programmes.
Boland Project
Cobra's unique and highly scalable Boland discovery is a strategically
advantageous ionic rare earth discovery where high grades of valuable heavy
and magnet rare earths occur concentrated in a permeable horizon confined by
impermeable clays. Bench scale ISR testing has confirmed that mineralisation
is amenable to ISR mining. ISR has been used successfully for decades within
geologically similar systems to recover uranium within South Australia.
Results of this metallurgical test work support that, with minor optimisation,
ISR techniques should enable non-invasive and low-cost production of critical
REEs from Cobra's Boland discovery.
Further information relating to Boland and these drilling results are
presented in the appendices.
Enquiries:
Cobra Resources plc via Vigo Consulting
Rupert Verco (Australia) +44 (0)20 7390 0234
Dan Maling (UK)
SI Capital Limited (Joint Broker) +44 (0)1483 413 500
Nick Emerson
Sam Lomanto
Global Investment Strategy (Joint Broker) +44 (0)20 7048 9437
James Sheehan james.sheehan@gisukltd.com
Vigo Consulting (Financial Public Relations) +44 (0)20 7390 0234
Ben Simons cobra@vigoconsulting.com
Kendall Hill
The person who arranged for the release of this announcement was Rupert Verco,
Managing Director of the Company.
Information in this announcement relates to exploration results that have been
reported in the following announcements:
· "Favourable Boland Metallurgical Results", dated 21st July 2025
· "Land Acquisition for Boland project Expansion", dated 27(th) May
2025
· "Yarranna Southeast Re-Assay Results", dated 26(th) June 2024
· "Boland Re-Assay Results", Dated 30th May 2024
· Wudinna Project Update: "Re-Assay Results Confirm High Grades Over
Exceptional Scale at Boland", dated 26 April 2024
· "Historical Drillhole Re-Assay Results", Dated 27 February 2024
Competent Persons Statement
Information and data presented within this announcement has been compiled by
Mr Robert Blythman, a Member of the Australian Institute of Geoscientists
("MAIG"). Mr Blythman is a Consultant to Cobra Resources Plc and has
sufficient experience, which is relevant to the style of mineralisation,
deposit type and to the activity which he is undertaking to qualify as a
Competent Person defined by the 2012 Edition of the Australasian Code for
Reporting Exploration Results, Mineral Resources and Ore Reserves (the "JORC"
Code). This includes 12 years of Mining, Resource Estimation and Exploration
relevant to the style of mineralisation.
Information in this announcement has been assessed by Mr Rupert Verco, a
Fellow of the Australasian Institute of Mining and Metallurgy. Mr Verco is an
employee of Cobra and has more than 17 years' industry experience which is
relevant to the style of mineralisation, deposit type, and activity which he
is undertaking to qualify as a Competent Person as defined in the 2012 Edition
of the Australasian Code for Reporting Exploration Results, Mineral Resources
and Ore Reserves of JORC. This includes 13 years of Mining, Resource
Estimation and Exploration.
About Cobra
In 2023, Cobra discovered a rare earth deposit with the potential to re-define
the cost of rare earth production. The highly scalable Boland ionic rare earth
discovery at Cobra's Wudinna Project in South Australia's Gawler Craton is
Australia's only rare earth project amenable for in situ recovery (ISR) mining
- a low cost, low disturbance method enabling bottom quartile recovery costs
without any need for excavation or ground disturbance. Cobra is focused on
de-risking the investment value of the discovery by proving ISR as the
preferred mining method and testing the scale of the mineralisation footprint
through drilling.
Cobra's Wudinna tenements also contain extensive orogenic gold mineralisation,
including a 279,000 Oz gold JORC Mineral Resource Estimate, characterised by
low levels of over-burden, amenable to open pit mining.
Appendix Figure 1: Regional map showing Cobra's tenements in the heart of the
Gawler Craton
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Appendix 1: Background information - the Boland Project and ISR
· The Boland Project was discovered by Cobra in 2023. Mineralisation is
ionically bound to clays and organics within palaeochannel sands within the
Narlaby Palaeochannel
· Mineralisation occurs within a permeable sand within an aquifer that
is saltier than sea water and is confined by impermeable clays
· ISR is executed through engineered drillhole arrays that allow the
injection of mildly acidic ammonium or magnesium sulphate lixiviants, using
the confining nature of the geology to direct and lower the acidity of the
orebody. This low-cost process enables mines to operate profitably at lower
grades and lower rates of recovery
· Once REEs are mobile in solution in groundwater, it is also possible,
from an engineering standpoint, to recover the solution to surface via
extraction drillholes, without any need for excavation or ground disturbance
· The capital costs of ISR mining are low as they involve no material
movements and do not require traditional infrastructure to process ore - i.e.
metals are recovered in solution
· Ionic mineralisation is highly desirable owing to its high weighting
of valuable HREOs and the cost-effective method in which REEs can be desorbed
· Ionic REE mineralisation in China is mined in an in-situ manner that
relies on gravity to permeate mineralisation. The style of ISR process is
unconfined and cannot be controlled, increasing the risk for environmental
degradation. This low-cost process has enabled China to dominate mine supply
of HREOs, supplying over 90% globally
· Confined aquifer ISR is successfully executed globally within the
uranium industry, accounting for more than 60% of the world's uranium
production. This style of ISR has temporary ground disturbance, and the ground
waters are regenerated over time
· Cobra is aiming to demonstrate the economic and environmental
benefits of recovering ionic HREOs through the more environmentally aquifer
controlled ISR - a world first for rare earths
Appendix Figure 2: Comparison between the Chinese and the proposed Boland
process for ISR mining of REEs
*one sample from IR 819 within the mineralised zone was destroyed during lab
preparation. A length weighted average of the intercept has been applied,
inclusive of the missing interval.
Appendix 2: Drill collar locations
Hole Id Easting Northing Elevation EOH Results Reported
IR 825 514779 6338023 100 70 y
IR 824 515654 6338553 100 70 y
IR 823 519229 6342523 100 65 y
IR 822 518809 6341373 100 41 y
IR 308A 531379 6338943 100 30 y
IR 307 529779 6338173 100 42 y
IR 306 528059 6337923 100 42 y
IR 305 526529 6337023 100 66 y
IR 304 525179 6335723 100 72 y
IR 303 523629 6334153 100 84 y
IR 302 521909 6333223 100 78 y
IR 301 520279 6332473 100 78 y
IR 275 532179 6346223 100 48 Y
IR 276 530430 6346973 100 72 Y
IR 279 526579 6347453 100 36 Y
IR 280 524609 6347553 100 78 Y
IR 281 522929 6346823 100 70 Y
IR 285 519210 6347273 100 54 Y
IR 287 519210 6347223 100 84 Y
IR 297 519210 6345903 100 36 Previous
IR 296 519210 6353123 100 42 Previous
SBU05008 519210 6347243 100 82 Previous
IR 295 519210 6351271 100 42 Previous
IR 294 519210 6349571 100 48 Previous
IR 293 519210 6347751 100 54 Previous
IR 292 519210 6347531 100 54 Previous
IR 291 519210 6347371 100 58 Previous
Appendix 3: Significant intercepts Yaninee Palaeochannel
Hole ID From (m) To (m) Int (m) TREO Pr(6)O(11) Nd(2)O(3) Tb(2)O(3) Dy(2)O(3) U(3)O(8) ThO(2)
IR 301 32 36 4 267 16 78 1.38 7.43 7 14
and 70 78 8 193 9 36 0.58 3.33 19 2
IR 302 42 44 2 124 6 23 0.31 1.78 10 4
and 62 74 12 168 7 23 0.39 2.16 19 2
IR303 40 42 2 110 6 27 0.33 1.84 5 2
and 58 74 16 154 5 16 0.28 1.46 13 2
incl. 58 68 10 148 5 13 0.23 1.19 11 1
IR 304 26 28 2 133 7 26 0.35 2.01 3 6
IR 305 24 26 2 121 6 21 0.33 1.89 16 4
IR 305 40 42 2 123 6 24 0.35 2.18 13 4
IR 305 48 66 18 172 6 28 0.4 2.32 45 5
incl. 48 56 8 158 7 32 0.48 2.67 22 7
IR 306 8 24 16 129 6 28 0.46 2.67 16 3
IR 306 26 42 16 197 12 32 0.6 3.16 21 10
incl. 26 36 10 146 7 27 0.5 2.63 10 12
IR 307 10 12 2 132 5 25 0.42 2.52 10 2
and 16 20 4 106 5 31 0.56 3.13 13 1
and 32 42 10 390 18 54 0.91 4.91 36 4
IR 308A 16 30 14 601 31 101 1.74 9.46 40 4
IR 309 0 2 2 132 6 32 0.52 2.87 6 3
and 6 18 12 453 22 51 0.82 4.26 34 4
IR 310 10 24 14 1678 102 207 3.67 18.08 54 4
IR 311 0 2 2 409 24 73 1.18 6.31 14 2
IR 311A 2 4 2 60 3 19 0.28 1.61 4 2
IR 819 36 44 8 209 11 36 0.63 3.35 25 13
and 44 70 26 229 10 29 0.5 2.62 20 4
and 70 76 6 239 10 92 1.18 7.02 23 3
IR 820 34 48 14 154 8 27 0.44 2.41 19 4
and 38 42 4 236 13 41 0.68 3.73 28 5
and 46 60 14 122 5 15 0.24 1.34 11 2
and 64 66 2 239 9 23 0.42 2.18 15 2
and 82 84 2 155 7 57 0.82 4.99 17 1
IR 821 26 28 2 208 10 49 0.87 4.94 5 2
and 34 42 8 237 12 36 0.61 3.34 28 12
and 58 68 10 190 7 22 0.37 1.97 15 2
and 70 80 10 667 19 64 1.32 6.98 17 2
IR 822 4 6 2 111 5 34 0.54 2.93 6 1
and 30 32 2 135 7 28 0.47 2.41 4 1
and 36 40 4 155 7 25 0.41 2.27 21 11
IR 823 58 60 2 181 10 29 0.52 2.81 20 3
IR 823 62 65 3 231 14 36 0.67 3.56 13 2
IR 824 38 40 2 122 5 27 0.4 2.41 11 17
and 42 44 2 368 20 60 1.06 5.85 34 4
and 44 66 22 176 8 31 0.49 2.87 24 5
and 66 70 4 449 36 106 1.78 10.22 16 2
IR 825 32 40 8 243 12 37 0.61 3.39 16 9
and 40 46 6 144 6 26 0.41 2.5 25 3
and 68 70 2 106 2 25 0.26 2.07 25 3
IR 275 40 42 2 243 13 44 0.9 4 47 3
IR 276 44 52 8 961 55 202 3.3 18 22 10
incl. 48 50 2 2329 137 467 8.3 42 21 6
and 50 52 2 399 20 94 1.3 7 22 7
IR 279 20 26 6 364 18 64 1.0 5 27 20
Incl. 22 24 2 454 23 54 0.9 4 37 5
IR 280 28 32 4 287 15 56 0.9 5 30 15
IR 281 34 36 2 287 15 48 0.8 4 32 38
IR 285 30 36 6 243 12 44 0.7 4 26 17
IR 287 36 40 4 243 12 47 0.8 4 27 10
Appendix 4: JORC Code, 2012 Edition - Table 3
Criteria JORC Code explanation Commentary
Sampling techniques · Nature and quality of sampling (eg cut channels, random chips, or Pre 2023
specific specialised industry standard measurement tools appropriate to the
minerals under investigation, such as down hole gamma sondes, or handheld XRF · Historic Rotary Mud drilling targeting palaeochannel hosted
instruments, etc). These examples should not be taken as limiting the broad uranium occurred from 1980 through to 2014 Residue samples were retained in
meaning of sampling. the Tonsley Core Library, downhole geophysical logging was the primary data
collected for these holes.
· Include reference to measures taken to ensure sample representivity
and the appropriate calibration of any measurement tools or systems used.
· Aspects of the determination of mineralisation that are Material to · Select historic sample residues over Yaninee Palaeochannel and
the Public Report. Boland were analysed as reported in RNS 1834M (26 April 2024)
· In cases where 'industry standard' work has been done this would be
relatively simple (eg 'reverse circulation drilling was used to obtain 1 m
samples from which 3 kg was pulverised to produce a 30 g charge for fire · Further re-analysis results have been reported within this
assay'). In other cases more explanation may be required, such as where there announcement
is coarse gold that has inherent sampling problems. Unusual commodities or
mineralisation types (eg submarine nodules) may warrant disclosure of detailed
information.
2023
Aircore
· A combination of 2m and 3m samples were collected in green bags
via a rig mounted cyclone. A PVC spear was used to collect a 2-4kg sub sample
from each green bag. Sampling commenced from the collar point with samples
submitted for analysis from the top of saprolite.
· Samples were submitted to Bureau Veritas Laboratories, Adelaide
and pulverized to produce a 4-acid digest sample.
2024-2025
SONIC
· Drill results are outlined in RNS 0297I (25 March 2024)
· Core was scanned by a SciAps X555 pXRF to determine sample
intervals. Intervals through mineralized zones were taken at 10cm. Through
waste, sample intervals were lengthened to 50cm. Core was halved by knife
cutting. XRF scan locations were taken on an inner surface of the core to
ensure readings were taken on fresh sample faces.
· Samples were submitted to Bureau Veritas Laboratories, Adelaide
and pulverized to produce a 4 acid digest sample.
Aircore
· 1m sample intervals of 2-4 kg were taken via PVC spear from green
bags at the rig. Select samples were submitted to the lab for analysis. From
0-6 m in each hole samples were composited to 3m.
· Samples were submitted to Bureau Veritas Laboratories, Adelaide
and pulverized to produce a 4 acid digest sample.
Drilling techniques · Drill type (eg core, reverse circulation, open-hole hammer, rotary Drilling completed by Cobra, but not relevant to the results reported within
air blast, auger, Bangka, sonic, etc) and details (eg core diameter, triple or this announcement include:
standard tube, depth of diamond tails, face-sampling bit or other type,
whether core is oriented and if so, by what method, etc).
Pre 2023
· Drill methods include Rotary Mud and AC
2023
· Drilling completed by McLeod Drilling Pty Ltd using 75.7mm NQ air
core drilling techniques from an ALMET aircore rig mounted on a Toyota
Landcruiser 6x6 and a 200psi, 400cfm Sullair compressor.
2024-2025
· Sizing analyses completed by the CSIRO and reported within this
announcement are from sonic drilling samples.
· Sonic Core drilling completed Star Drilling using 4" core with a
SDR12 drill rig. Holes were reamed to 6" or 8" to enable casing and screens to
be installed
Historical Drilling, Re-assay Results
· Rotary mud drilling was used by previous explorers to test
Palaeochannel sediments for roll-front uranium.
· Bentonite muds are added to drilling fluids to lift sample from
the hole.
· The methods for Rotary Mud are not well reported, however it is
expected that 2m samples would have been recovered from a collar discharge
channel via shovel.
· The primary focus of the drilling would have been to provide hole
stability for geophysical probes to be lowered downhole.
Drill sample recovery · Method of recording and assessing core and chip sample recoveries and · Samples collected from the Drill Core Reference Library from
results assessed. historic Rotary Mud and Aircore drilling have uncertain sample collection
methods. These drill methods can result in a bias towards coarser sediment
· Measures taken to maximise sample recovery and ensure representative portions sampled as drilling fluids used lift the sample through the open hole
nature of the samples. and deposit sample within a discharge channel. Rare earth mineralization is
associated with the finer fractions of these sedimentary systems, a large
· Whether a relationship exists between sample recovery and grade and portion of finer (mineralised) material would likely be discharged to the
whether sample bias may have occurred due to preferential loss/gain of sump. Rotary mud samples are expected to under-report the fine fraction
fine/coarse material. associated rare earth mineralisation and are considered qualitative.
· Aircore Sample recovery is good for the style of drilling. All
samples were recorded for sample type, quality and contamination potential and
entered within a sample log.
· In general, sample recoveries range between 5-10kg for each 1 m
interval being recovered from AC drilling.
· Mineralisation occurs within a confined aquifer where ground
water does influence sample recovery
· Mineralisation within the targeted Pidinga Formation is bound to
fine, organic rich material, the potential loss of mineralized material from
coarser host sands is possible
· Any grade bias is expected to be grade loss
· The potential loss of fine material is being evaluated by sizing
fraction analysis and follow-up sonic core drilling where aircore holes will
be twinned.
Sonic Core
· Sample recovery is considered excellent.
· Due to the nature of smectite clays, recovered unconsolidated
core can expand and "stretch" in length.
· Any expansion in core length has been reflected in meterage
markup by averaging the increase in length per 3m of rod recovery.
· Little to no expansion is experienced through the mineralised
Pidinga Formation.
Logging · Whether core and chip samples have been geologically and
geotechnically logged to a level of detail to support appropriate Mineral
Resource estimation, mining studies and metallurgical studies. · Historic logging is generally good. Stratigraphy has been
reviewed and is generally reflective of Cobra sample re-assessment. Logging is
· Whether logging is qualitative or quantitative in nature. Core (or limited to the 2m sample interval in general with historic gamma logging
costean, channel, etc) photography. indicative of internal heterogeneity in sediments lost within the 2m interval
· The total length and percentage of the relevant intersections logged. · All drill samples were logged by a qualified geologist at the
time of drilling. Lithology, colour, weathering and moisture were documented.
All core drilled has been lithologically logged.
· All Aircore drill metres have been geologically logged on sample
intervals (1-3 m).
· All Sonic Core drill metres have been logged to lithological
boundaries.
Sub-sampling techniques and sample preparation · If core, whether cut or sawn and whether quarter, half or all core Pre 2023
taken.
· Historic Residue samples are generally 2m composites and were
· If non-core, whether riffled, tube sampled, rotary split, etc and stored at the South Australian Drill Core Reference Library at Tonsley, a
whether sampled wet or dry. subsample of approximately 20g was removed for lab submission.
· For all sample types, the nature, quality and appropriateness of the · Sample selection was based on geological observation and selected
sample preparation technique. for lab submission
· Quality control procedures adopted for all sub-sampling stages to · No QAQC samples were included in the submission of these samples.
maximise representivity of samples. Sample results were intended to indicate mineralisation potential but would
not be suitable for resource estimation
· Measures taken to ensure that the sampling is representative of the
in situ material collected, including for instance results for field
duplicate/second-half sampling.
Post 2023
· Whether sample sizes are appropriate to the grain size of the
material being sampled. · A PVC spear was used to collect 2-4kg of sub-sample from each AC
sample length controlled the sample volume submitted to the lab.
· Additional sub-sampling was performed through the preparation and
processing of samples according to the Bureau Veritas internal protocols.
· Field duplicate AC samples were collected from the green bags
using a PVC spear scoop at a 1 in 25 sample frequency.
· Sample sizes are considered appropriate for the material being
sampled.
· Assessment of duplicate results indicated this sub - sample
method provided appropriate repeatability for rare earths.
Sonic Drilling
· Field duplicate samples were taken nominally every 1 in 25
samples where the sampled interval was quartered.
· Blanks and Standards were submitted every 25 samples
· Half core samples were taken where lab geochemistry sample were
taken in 2024.
· For 2025 drilling, quarter core was submitted to the lab for
geochemical testing.
· In holes where only column leach test samples have been
submitted, full core samples have been submitted. In holes where geochemical
samples were submitted three quarter core samples were submitted for column
leach testing..
Quality of assay data and laboratory tests · The nature, quality and appropriateness of the assaying and
laboratory procedures used and whether the technique is considered partial or
total. · Samples were submitted to Bureau Veritas, Adelaide for
preparation and analysis. Multi-element geochemistry were digested by four
· For geophysical tools, spectrometers, handheld XRF instruments, etc, acid ICP-MS/ ICP-OES and analysed for Ag, Ce, Cu, Dy, Er, Eu, Gd, Ho, La, Lu,
the parameters used in determining the analysis including instrument make and Mg, Na, Nd, P, Pr, Sc, Sm, Tb, Th, Tm, U, Y and Yb.
model, reading times, calibrations factors applied and their derivation, etc.
· Nature of quality control procedures adopted (eg standards, blanks,
duplicates, external laboratory checks) and whether acceptable levels of · Field rare earth standards were submitted at a frequency of 1 in
accuracy (ie lack of bias) and precision have been established. 25 samples.
· Field duplicate samples were submitted at a frequency of 1 in 25
samples.
· Reported assays pass the companies implemented QAQC database
reports
· Internal lab blanks, standards and repeats for rare earths
indicated acceptable assay accuracy.
Sample Characterisation Test Work performed by the Australian Nuclear Science
and Technology Organisation (ANSTO)
· Full core samples were submitted to Australian Nuclear Science
and Technology Organisation (ANSTO), Sydney for preparation and analysis. The
core was split in half along the vertical axis, and one half further split
into 10 even fractions along the length of the half-core. Additional
sub-sampling, homogenisation and drying steps were performed to generate ~260
g (dry equivalent) samples for head assay according to the laboratory internal
protocols.
· Multi element geochemistry of solid samples were analysed at
ANSTO (Sydney) by XRF for the major gangue elements Al, Ca, Fe, K, Mg, Mn, Na,
Ni, P, Si, S, and Zn.
· Multi element geochemistry of solid samples were additionally
analysed at ALS Geochemistry Laboratory (Brisbane) on behalf of ANSTO by
lithium tetraborate digest ICP-MS and analysed for Ce, Dy, Er, Eu, Gd, Ho,
La, Lu, Nd, Pr, Sm, Tb, Th, Tm, U, Y and Yb.
· Reported assays are to acceptable levels of accuracy and
precision.
· Internal laboratory blanks, standards and repeats for rare earths
indicated acceptable assay accuracy.
· Samples retained for metallurgical analysis were immediately
vacuum packed, nitrogen purged and refrigerated.
· These samples were refrigerated throughout transport.
Metallurgical Leach Test Work performed by the Australian Nuclear Science and
Technology Organisation (ANSTO)
· ANSTO laboratories prepared ~80g samples for diagnostic leaches, a
443g sample for a slurry leach and a 660g sample for a column leach.
Sub-samples were prepared from full cores according to the laboratory internal
protocols. Diagnostic and slurry leaching were carried out in baffled leach
vessels equipped with an overhead stirrer and applying a 0.5 M (NH4)2SO4
lixiviant solution, adjusted to the select pH using H2SO4.
· 0.5 M H2SO4 was utilised to maintain the test pH for the duration of
the test, if necessary. The acid addition was measured.
· Thief liquor samples were taken periodically.
· At the completion of each test, the final pH was measured, the slurry
was vacuum filtered to separate the primary filtrate.
· The thief samples and primary filtrate were analysed as follows:
o ICP-MS for Ce, Dy, Er, Eu, Gd, Ho, La, Lu, Mn, Nd, Pb, Pr, Sc, Sm, Tb, Th,
Tm, U, Y, Yb.
o ICP-OES for Al, Ca, Fe, K, Mg, Mn, Na, Si.
· The water wash was stored but not analysed.
· Column leaching was carried out in horizontal leaching column. The
column was pressurised with nitrogen to 6 bar and submerged in a temperature
controlled bath.
· A 0.5 M (NH4)2SO4 lixiviant solution, adjusted to the select pH using
H2SO4 was fed to the column at a controlled flowrate.
· PLS collected from the end of the column was weighed, the SH and pH
measured and the free acid concentration determined by titration. Liquor
samples were taken from the collected PLS and analysed as follows:
o ICP-MS for Ce, Dy, Er, Eu, Gd, Ho, La, Lu, Mn, Nd, Pb, Pr, Sc, Sm, Tb, Th,
Tm, U, Y, Yb.
o ICP-OES for Al, Ca, Fe, K, Mg, Mn, Na, Si.
· The column leach test has been completed. Assays of the column have
adjusted head grades of the initial bench scale study. Recoveries have been
adjusted accordingly.
Verification of sampling and assaying · The verification of significant intersections by either independent · Historic samples were checked against the "SARIG" drillhole
or alternative company personnel. database to confirm drillhole depths. Each sample was weighed and photographed
with the core library sample container, the lab submitted sample container and
· The use of twinned holes. the sample placed in the lab sample container to check for manual errors.
Samples and drillhole photographs were entered into Cobra's MX Deposit
· Documentation of primary data, data entry procedures, data database during sample collection and a record was submitted to the core
verification, data storage (physical and electronic) protocols. library for their records.
· Discuss any adjustment to assay data. · Sampling data was recorded in field books, checked upon
digitising and transferred to database.
· Geological logging was undertaken digitally via the MX Deposit
logging interface and synchronised to the database at least daily during the
drill programme.
· Compositing of assays was undertaken and reviewed by Cobra
Resources staff.
· Original copies of laboratory assay data are retained digitally
on the Cobra Resources server for future reference.
· Samples have been spatially verified through the use of Datamine
and Leapfrog geological software for pre 2021 and post 2021 samples and
assays.
· Twinned drillholes from pre 2021 and post 2021 drill programs
showed acceptable spatial and grade repeatability.
· Physical copies of field sampling books are retained by Cobra
Resources for future reference.
· Significant intersections have been prepared by Mr Robert
Blythman and reviewed by Mr Rupert Verco
Location of data points · Accuracy and quality of surveys used to locate drill holes (collar
and down-hole surveys), trenches, mine workings and other locations used in
Mineral Resource estimation. Pre-2021
· Specification of the grid system used. · Historic re-analysis holes are considered indicative with
reported accuracy greater than 50m. elevation for these holes has not been
· Quality and adequacy of topographic control. acquired.
2021-2023
· Collar locations were initially surveyed using a mobile phone
utilising the Avenza Map app. Collar points recorded with a GPS horizontal
accuracy within 5 m.
· RC Collar locations were picked up using a Leica CS20 base and
Rover with an instrument precision of 0.05 cm accuracy.
· Locations are recorded in geodetic datum GDA 94 zone 53.
· No downhole surveying was undertaken on AC holes. All holes were
set up vertically and are assumed vertical.
· RC holes have been down hole surveyed using a Reflex TN-14 true
north seeking downhole survey tool or Reflex multishot
· Downhole surveys were assessed for quality prior to export of
data. Poor quality surveys were downgraded in the database to be excluded from
export.
· All surveys are corrected to MGA 94 Zone 53 within the MX Deposit
database.
· Cased collars of sonic drilling shall be surveyed before a
mineral resource estimate
2024 Aircore
· Collar locations were initially surveyed using A mobile phone GPS
utilising the Avenza Map app. Collar points recorded with a horizontal
accuracy within 5m.
· Locations are recorded in geodetic datum GDA 94 zone 53.
· No downhole surveying was undertaken on AC or Sonic holes. All
holes were set up vertically and are assumed vertical.
· Higher accuracy GPS will be undertaken on sonic core drilling to
support future resource estimates
Data spacing and distribution · Data spacing for reporting of Exploration Results. · Historic samples are variably distributed and were located
opportunistically in areas of easy access with spacing typically at least
· Whether the data spacing and distribution is sufficient to establish hundreds of metres apart on section and kilometres apart in between transects.
the degree of geological and grade continuity appropriate for the Mineral
Resource and Ore Reserve estimation procedure(s) and classifications applied. ·
· Whether sample compositing has been applied. · Drillhole spacing was designed on transects 200 to 500m apart.
· Additional scouting holes were drilled opportunistically on
existing tracks at spacings 25-150 m from previous drillholes.
· Sonic core holes were drilled at ~20m spacings in a wellfield
configuration based on assumed permeability potential of the intersected
geology
· Drillhole spacing is not expected to introduce any sample bias.
· Assessment of the drillhole spacing for resource estimation will be
made once a sufficient data set can provide statistical analysis
· .
Orientation of data in relation to geological structure · Whether the orientation of sampling achieves unbiased sampling of · Historic holes are reported as vertical.
possible structures and the extent to which this is known, considering the
deposit type. · Aircore and Sonic drill holes are vertical.
· If the relationship between the drilling orientation and the
orientation of key mineralised structures is considered to have introduced a
sampling bias, this should be assessed and reported if material.
Sample security · The measures taken to ensure sample security. · Historic samples were collected at the drill core reference library
and submitted by Cobra staff to the lab directly. Samples held prior to
submission were held within a locked storage facility.
· Transport of samples to Adelaide was undertaken by a competent
independent contractor. Samples were packaged in zip tied polyweave bags in
bundles of 5 samples at the drill rig and transported in larger bulka bags by
batch while being transported.
· Refrigerated transport of samples to Sydney was undertaken by a
competent independent contractor. Samples were double bagged, vacuum sealed,
nitrogen purged and placed within PVC piping.
· There is no suspicion of tampering of samples.
Audits or reviews · The results of any audits or reviews of sampling techniques and data. · No laboratory audit or review has been undertaken.
· Genalysis Intertek and BV Laboratories Adelaide are NATA (National
Association of Testing Authorities) accredited laboratory, recognition of
their analytical competence.
Appendix 5: Section 2 reporting of exploration results
Criteria JORC Code explanation Commentary
Mineral tenement and land tenure status · Type, reference name/number, location and ownership including · In May 2025 Cobra Announsed the rights to acquire a 100% interest
agreements or material issues with third parties such as joint ventures, in EL 6742, EL 6774 and EL 6780 from the Tri-Star Group.
partnerships, overriding royalties, native title interests, historical sites,
wilderness or national park and environmental settings. · These tenements are subjects to milestone payments relating to
the delivery of a JORC compliant resource and the retention of the Els for
· The security of the tenure held at the time of reporting along greater than fiver years.
with any known impediments to obtaining a licence to operate in the area.
· A net smelter royalty of 1.5%, capped at A$5.0 million as
outlined in RNS number 2038K
· Boland is located on EL5953, currently owned 100% by Peninsula
Resources limited, a wholly owned subsidiary of Andromeda Metals Limited.
· In 2024, Cobra through its subsidiary Lady Alice Mines purchased
the remaining ownership of the Wudinna Project tenements.
· An application through partial surrender is currently with the
South Australian Government which will see LAM as the 100% owner of areas of
the Wudinna Project.
· Alcrest Royalties Australia Pty Ltd retains a 1.5% NSR royalty
over future mineral production from licenses EL6001, EL5953, EL6131, EL6317
and EL6489.
· A Native Title Agreement is in place with the Barngarla people.
· Aboriginal heritage surveys have been completed over EL5953, with
no sites located in the immediate vicinity of aircore drilling
Exploration done by other parties · Acknowledgment and appraisal of exploration by other parties. · On-ground exploration completed prior to Andromeda Metals' work
was limited to 400 m spaced soil geochemistry completed by Newcrest Mining
Limited over the Barns prospect.
· Other than the flying of regional airborne geophysics and coarse
spaced ground gravity, there has been no recorded exploration in the vicinity
of the Baggy Green deposit prior to Andromeda Metals' work.
· Palaeochannel uranium exploration was undertaken by various
parties in the 1980s and the 2010s around the Boland Prospect. Drilling was
primarily rotary mud with downhole geophysical logging the primary
interpretation method.
Geology · Deposit type, geological setting and style of mineralisation. · Target mineralisation is ionic rare earth mineralisation that
occurs primarily within the Pidinga Formation within the Narlaby
Palaeochannel, immediately above REE enriched Hiltaba Suite Granites
· Ionic REE mineralisation also occurs in and adjacent to the
Garford formation clays and silty sands.
· Significant chemical (pH & eH) differences exist between
underlying saprolite and overlying Palaeochannel sediments. REEs are absorbed
to reduced organics found within the Pidinga Formation
· Benchtop metallurgy studies indicate ISR amenability of rare
earths within the Pidinga Formation basal sands summarized in RNS 1285Q (16
December 2024)
· Ionic REE mineralisation is confirmed through metallurgical
desorption testing where high recoveries are achieved at benign acidities
(pH4-3) at ambient temperature.
· QEMSCAN and petrology analysis support REE ionic mineralisation,
with little to no secondary phases identified.
· Ionic REE mineralisation occurs in reduced clay intervals that
contact both saprolite and permeable sand units. Mineralisation contains
variable sand quantities that yield permeability and promote in-situ recovery
potential
· Mineralisation is located within a confined aquifer
Drillhole Information · A summary of all information material to the understanding of the · Exploration results being reported represent historical drilling
exploration results including a tabulation of the following information for performed by previous companies. Reported hole locations are based upon SARIG
all Material drill holes: database locations. Where possible, coordinates have been validated against
source envelopes.
o easting and northing of the drill hole collar
o elevation or RL (Reduced Level - elevation above sea level in metres) of
the drill hole collar
o dip and azimuth of the hole
o down hole length and interception depth
o hole length.
· If the exclusion of this information is justified on the basis
that the information is not Material and this exclusion does not detract from
the understanding of the report, the Competent Person should clearly explain
why this is the case.
Data aggregation methods · In reporting Exploration Results, weighting averaging techniques, · Reported summary intercepts are weighted averages based on
maximum and/or minimum grade truncations (eg cutting of high grades) and length.
cut-off grades are usually Material and should be stated.
· No maximum/ minimum grade cuts have been applied.
· Where aggregate intercepts incorporate short lengths of high
grade results and longer lengths of low grade results, the procedure used for · No metal equivalent values have been calculated.
such aggregation should be stated and some typical examples of such
aggregations should be shown in detail. · Rare earth element analyses were originally reported in elemental
form and have been converted to relevant oxide concentrations in line with
· The assumptions used for any reporting of metal equivalent values industry standards. Conversion factors tabulated below:
should be clearly stated.
Element Oxide Factor
Cerium CeO2 1.2284
Dysprosium Dy2O3 1.1477
Erbium Er2O3 1.1435
Europium Eu2O3 1.1579
Gadolinium Gd2O3 1.1526
Holmium Ho2O3 1.1455
Lanthanum La2O3 1.1728
Lutetium Lu2O3 1.1371
Neodymium Nd2O3 1.1664
Praseodymium Pr6O11 1.2082
Scandium Sc2O3 1.5338
Samarium Sm2O3 1.1596
Terbium Tb4O7 1.1762
Thulium Tm2O3 1.1421
Yttrium Y2O3 1.2699
Ytterbium Yb2O3 1.1387
· The reporting of REE oxides is done so in accordance with
industry standards with the following calculations applied:
· TREO = La2O3 + CeO2 + Pr6O11 + Nd2O3 + Sm2O3 + Eu2O3 +
Gd2O3 + Tb4O7 + Dy2O3 + Ho2O3 + Er2O3 + Tm2O3 + Yb2O3 + Lu2O3 + Y2O3
· CREO = Nd2O3 + Eu2O3 + Tb4O7 + Dy2O3 + Y2O3
· LREO = La2O3 + CeO2 + Pr6O11 + Nd2O3
· HREO = Sm2O3 + Eu2O3 + Gd2O3 + Tb4O7 + Dy2O3 + Ho2O3 +
Er2O3 + Tm2O3 + Yb2O3 + Lu2O3 + Y2O3
· MREO = Nd2O3 + Pr6O11 + Tb4O7 + Dy2O3
· NdPr = Nd2O3 + Pr6O11
· TREO-Ce = TREO - CeO2
· % Nd = Nd2O3/ TREO
· % Pr = Pr6O11/TREO
· % Dy = Dy2O3/TREO
· % HREO = HREO/TREO
· % LREO = LREO/TREO
· XRF results are used as an indication of potential grade only.
Due to detection limits only a combined content of Ce, La, Nd, Pr & Y has
been used. XRF grades have not been converted to oxide.
Relationship between mineralisation widths and intercept lengths · These relationships are particularly important in the reporting · Preliminary results support unbiased testing of the mineralised
of Exploration Results. system.
· If the geometry of the mineralisation with respect to the drill · Most intercepts are vertical and reflect true width intercepts.
hole angle is known, its nature should be reported.
· Follow-up sonic drilling is planned to delineate portions of the
· If it is not known and only the down hole lengths are reported, reported intersections that are recoverable and unrecoverable via ISR
there should be a clear statement to this effect (eg 'down hole length, true
width not known').
Diagrams · Appropriate maps and sections (with scales) and tabulations of · Relevant diagrams have been included in the announcement.
intercepts should be included for any significant discovery being reported
These should include, but not be limited to a plan view of drill hole collar · Exploration results are not being reported for existing mineral
locations and appropriate sectional views. resources.
· Drilling is aimed at defining new exploration targets
Balanced reporting · Where comprehensive reporting of all Exploration Results is not · REE mineralization occurs in several phases, ionic mineralisation
practicable, representative reporting of both low and high grades and/or occurs within the Pidinga Formation and the Garford Formation where ISR
widths should be practiced to avoid misleading reporting of Exploration recovery is possible. REO values within all formations have been reported.
Results. Mineralisation occurring within the saprolite is considered secondary phase
and colloidal mineralization but is indicative of a rare earth enriched system
Other substantive exploration data · Other exploration data, if meaningful and material, should be · Refer to previous announcements listed in RNS for reporting of
reported including (but not limited to): geological observations; geophysical REE results and metallurgical testing
survey results; geochemical survey results; bulk samples - size and method of
treatment; metallurgical test results; bulk density, groundwater, geotechnical
and rock characteristics; potential deleterious or contaminating substances.
Further work · The nature and scale of planned further work (eg tests for · Further drill core reference library results are pending
lateral extensions or depth extensions or large-scale step-out drilling).
· Drill planning, including the requisite approvals are anticipated
· Diagrams clearly highlighting the areas of possible extensions, to follow the return of the upcoming assay results
including the main geological interpretations and future drilling areas,
provided this information is not commercially sensitive. · ISR study 1 was performed to achieve a pH 3 whilst ISR study 2
was performed at a pH of 3.
· Future metallurgical testing will focus on optimizing a current
flow-sheet, investigating Light REE removal through pre-condition leaching and
oxidation. Further studies are planned for impurity precipitation and
· Hydrology, permeability and mineralogy studies are being
performed on core samples.
· Installed wells are being used to capture hydrology base line
data to support a future infield pilot study.
· Trace line tests shall be performed to emulate bench scale pore
volumes.
· The reporting of REE oxides is done so in accordance with
industry standards with the following calculations applied:
· TREO = La2O3 + CeO2 + Pr6O11 + Nd2O3 + Sm2O3 + Eu2O3 +
Gd2O3 + Tb4O7 + Dy2O3 + Ho2O3 + Er2O3 + Tm2O3 + Yb2O3 + Lu2O3 + Y2O3
· CREO = Nd2O3 + Eu2O3 + Tb4O7 + Dy2O3 + Y2O3
· LREO = La2O3 + CeO2 + Pr6O11 + Nd2O3
· HREO = Sm2O3 + Eu2O3 + Gd2O3 + Tb4O7 + Dy2O3 + Ho2O3 +
Er2O3 + Tm2O3 + Yb2O3 + Lu2O3 + Y2O3
· MREO = Nd2O3 + Pr6O11 + Tb4O7 + Dy2O3
· NdPr = Nd2O3 + Pr6O11
· TREO-Ce = TREO - CeO2
· % Nd = Nd2O3/ TREO
· % Pr = Pr6O11/TREO
· % Dy = Dy2O3/TREO
· % HREO = HREO/TREO
· % LREO = LREO/TREO
· XRF results are used as an indication of potential grade only.
Due to detection limits only a combined content of Ce, La, Nd, Pr & Y has
been used. XRF grades have not been converted to oxide.
Relationship between mineralisation widths and intercept lengths
· These relationships are particularly important in the reporting
of Exploration Results.
· If the geometry of the mineralisation with respect to the drill
hole angle is known, its nature should be reported.
· If it is not known and only the down hole lengths are reported,
there should be a clear statement to this effect (eg 'down hole length, true
width not known').
· Preliminary results support unbiased testing of the mineralised
system.
· Most intercepts are vertical and reflect true width intercepts.
· Follow-up sonic drilling is planned to delineate portions of the
reported intersections that are recoverable and unrecoverable via ISR
Diagrams
· Appropriate maps and sections (with scales) and tabulations of
intercepts should be included for any significant discovery being reported
These should include, but not be limited to a plan view of drill hole collar
locations and appropriate sectional views.
· Relevant diagrams have been included in the announcement.
· Exploration results are not being reported for existing mineral
resources.
· Drilling is aimed at defining new exploration targets
Balanced reporting
· Where comprehensive reporting of all Exploration Results is not
practicable, representative reporting of both low and high grades and/or
widths should be practiced to avoid misleading reporting of Exploration
Results.
· REE mineralization occurs in several phases, ionic mineralisation
occurs within the Pidinga Formation and the Garford Formation where ISR
recovery is possible. REO values within all formations have been reported.
Mineralisation occurring within the saprolite is considered secondary phase
and colloidal mineralization but is indicative of a rare earth enriched system
Other substantive exploration data
· Other exploration data, if meaningful and material, should be
reported including (but not limited to): geological observations; geophysical
survey results; geochemical survey results; bulk samples - size and method of
treatment; metallurgical test results; bulk density, groundwater, geotechnical
and rock characteristics; potential deleterious or contaminating substances.
· Refer to previous announcements listed in RNS for reporting of
REE results and metallurgical testing
Further work
· The nature and scale of planned further work (eg tests for
lateral extensions or depth extensions or large-scale step-out drilling).
· Diagrams clearly highlighting the areas of possible extensions,
including the main geological interpretations and future drilling areas,
provided this information is not commercially sensitive.
· Further drill core reference library results are pending
· Drill planning, including the requisite approvals are anticipated
to follow the return of the upcoming assay results
· ISR study 1 was performed to achieve a pH 3 whilst ISR study 2
was performed at a pH of 3.
· Future metallurgical testing will focus on optimizing a current
flow-sheet, investigating Light REE removal through pre-condition leaching and
oxidation. Further studies are planned for impurity precipitation and
· Hydrology, permeability and mineralogy studies are being
performed on core samples.
· Installed wells are being used to capture hydrology base line
data to support a future infield pilot study.
· Trace line tests shall be performed to emulate bench scale pore
volumes.
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