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RAREX LIMITED Capital/Financing Update 2023

Jun 7, 2023

65681_rns_2023-06-07_346027b4-cf2b-41f5-a354-e0a50fe9c6d7.pdf

Capital/Financing Update

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ASX Release 8 June 2023

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Broader-scale bioavailability tests further confirm potential of Cummins Range phosphate DSO for use as direct application fertiliser Results show consistently high phosphorous bioavailability of bulk samples, highlighting the potential for Cummins Range DSO material to be used as organic fertiliser in agricultural applications

HIGHLIGHTS

  • Broader-scale phosphorus bioavailability tests show exceptionally high bioavailability of Cummins Range DSO phosphate for use as direct application fertilisers

  • Outstanding results offer the potential of Cummins Range DSO material to use lower head grades whilst still achieving the same fertiliser benefits, increasing the potential for larger production volumes

  • Deleterious elements including fluorine, chlorine, cadmium and lead are shown to be well below industry limits , which is favourable for both Stage 1 DSO and Stage 2 beneficiation

RareX Limited (ASX: REE – RareX or the Company ) is pleased to advise that recent testwork on samples from the Cummins Range Rare Earths & Phosphate Project in WA has further confirmed the strong potential of Cummins Range phosphate Direct Shipping Ore ( DSO ) to be used as direct-application agricultural fertiliser.

The latest testwork results follow previously reported positive bioavailability results on Cummins Range DSO and phosphate mineral concentrate[1] , providing further support for the Company's proposed staged development of the Cummins Range Project[2] . This staged approach is designed to provide early, low-risk cash flows from phosphate production before transitioning into rare earths, with three proposed development stages:

  • Stage 1: DSO

  • Stage 2: Processed Phosphate

  • Stage 3: Processed Rare Earths

A Scoping Study for the Stage 1 DSO mining operation is scheduled for delivery in July 2023, with a fasttracked Definitive Feasibility Study (DFS) for the DSO product due at the end of 2023.

1 ASX Announcement 23 March 2023; Phosphate Testwork Confirms Potential to Produce Fertiliser 2 ASX Announcement 13 April 2023; Cummins Range Rare Earths-Phosphate Project – Development and Strategy Update

For more information, Investors: James Durrant, CEO P +61 (0) 8 6383 6593 please contact: Media: Nicholas Read, Read Corporate P +61 (0) 8 9388 1474 RareX Limited RareX HQ P +61 (0) 8 6383 6593 RareX Limited (ASX:REE) ASX:REE Level 1, 338 Barker Road @rarex_asx ABN: 65 105 578 756 Subiaco WA 6008 [email protected] Australia rarex.com.au

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Beginning the project as a DSO phosphate operation, before transitioning through Stage 2 and into rare earths at Stage 3, significantly de-risks the Cummins Range development from the complexity, uncertainty, and significant cost implications of designing and constructing the full rare earth value chain from the outset.

RareX CEO, James Durrant, said: “We’re building a very good case for a fast-tracked start-up operation based on phosphate DSO, with these latest testwork results providing further strong support for our development strategy. By delivering higher bioavailability product, we can increase the value-in-use for any given production grade, with the opportunity to also lower head grades to extend the DSO operation before making the transition to Stage 2.”

Bioavailability Testwork Program

To better understand the DSO potential of the Cummins Range deposit, an additional 88 samples were selected from the two main geological units, the Rare Dyke (RD) and the Phos Dyke (PD). The samples were selected to ensure broad coverage of different P2O5 grades, locations within the orebody, and different weathering profiles. The testwork program comprised industry-standard 2% citric acid leach test and was conducted at LabWest Mineral Analysis.

The phosphorus bioavailability results were compared with industry “high” standard for the citric acid method and are shown in Figure 1 and Figure 2 for Rare Dyke and Phos Dyke respectively. As indicated, the majority of the 88 samples were shown to have very high phosphorus bioavailabilities which were 2-4 times the industry high standard (>9.4% P2O5 dissolution in 2% citric acid). Good bioavailabilities were also observed across all grades and weathering zones revealing potential for increased production volumes.

These exceptional results demonstrate the potential of Cummins Range DSO material for use as direct application fertilisers.

P +61 (0) 8 6383 6593 RareX Limited (ASX:REE) @rarex_asx [email protected] rarex.com.au

RareX Limited ASX:REE ABN: 65 105 578 756

RareX HQ Level 1, 338 Barker Road Subiaco WA 6008 Australia

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Figure 1: Phosphorous Bioavailability Results vs. Industry Standard - Rare Dyke

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Figure 2: Phosphorous Bioavailability Results vs. Industry Standard - Phos Dyke

Note: CW – Completely Weathered; SW – Strongly Weathered; MW – Moderately Weathered, WW – Weakly Weathered; FR – Fresh

RareX HQ P +61 (0) 8 6383 6593 RareX Limited (ASX:REE) Level 1, 338 Barker Road @rarex_asx Subiaco WA 6008 [email protected] Australia rarex.com.au

RareX Limited ASX:REE ABN: 65 105 578 756

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The Cummins Range resource is an igneous deposit which means the rocks are naturally lower in impurities and deleterious elements when compared with sedimentary rocks. The results from the 88 samples confirm very low levels of deleterious elements including fluorine (F), chlorine (Cl), cadmium (Cd) and lead (Pb) which are well below industry limits as shown in Table 1.

Table 1: Deleterious Elements Results Summary

Deleterious Element Unit Assay Range Average Level Industry Limit for
Phosphorus Fertilisers3
F % 0.18 - 4.00 1.02 <4
Cl % 0.01 - 0.11 0.03 <2
Cd mg/kg P 3.31 - 137.64 32.82 <300
Pb mg/kg 1.70 – 208.00 24.32 <500

Following the positive results, additional formic acid and water leach tests are planned to further assess the phosphorus bioavailability of the potential DSO material. RareX has recently appointed a fertiliser consultant to leverage current and future DSO testwork results, assist with better understanding of the agronomic effects of the Cummins Range DSO material and support the development of product marketing and offtake agreements.

In addition to the DSO analysis, phosphate mineral beneficiation studies for both the Rare Dyke and Phos Dyke materials are underway, with the rare earth deportment also being studied. Phosphate-optimised beneficiation is a strong alternative to rare earth-optimised flotation and may deliver greater value realisation from the Cummins Range Resource.

RareX has signed a collaboration Memorandum of Understanding ( MOU ) with OrdCo[4] to develop a phosphate product roadmap to support the Kununurra agricultural sector with a portion of Cummins Range’s phosphate product mix. These latest testwork results clearly support this component of the work being completed under the MOU.

Phosphate prices are currently, and are expected to remain, favourable for a fast-tracked DSO operation which could generate positive cash flows in the near term. These cashflows could then be used to fund the longer-term project which would include recovery of both rare earth and phosphate products.

RareX has also recently announced an updated Mineral Resource Estimate ( MRE )[5] for Cummins Range, which significantly enlarged the Resource and positioned Cummins Range as the largest undeveloped rare earths project in Australia. This Resource update, together with the testwork results outlined in this announcement, will underpin the completion of a scoping level study. This will provide a base for a more advanced study due later in the year.

3 Industry limit as stated in “National Code of Practice for Fertilizer Description and Labelling”, Fertiliser Australia 2018

4 ASX A nnouncement 07 November 2022; RareX Signs MOU for Supply of Phosphate Products Locally

5 ASX Announcement 01 May 2023; Cummins Range Resource Soars to 519Mt 0.32% TREO, 4.6% P2O5

RareX Limited RareX HQ P+61 (0) 8 6383 6593 RareX Limited (ASX:REE) RareX Limited (ASX:REE)
ASX:REE Level 1, 338 Barker Road @rarex_asx
ABN: 65 105 578 756 Subiaco WA 6008 [email protected]
Australia rarex.com.au

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The Cummins Range Project is located approximately 535km by road to the port of Wyndham, and slightly less to Kununurra, making transport logistics feasible for bulk products such as phosphate fertiliser. The port of Wyndham has been used for the commercial transport of bulk iron ore.

This announcement has been authorised for release by the Board of RareX Limited.

RareX HQ P +61 (0) 8 6383 6593 RareX Limited (ASX:REE) Level 1, 338 Barker Road @rarex_asx Subiaco WA 6008 [email protected] Australia rarex.com.au

RareX Limited ASX:REE ABN: 65 105 578 756

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Competent Person’s Statements

The information in this release that relates to metallurgical testwork is based on information compiled and / or reviewed by Mr Gavin Beer who is a Member of The Australasian Institute of Mining and Metallurgy (AusIMM) and a Chartered Professional. Mr Beer is a consulting metallurgist with sufficient experience relevant to the activity which he is undertaking to be recognised as competent to compile and report such information. Mr Beer consents to the inclusion in the report of the matters based on his information in the form and context in which it appears. Mr Beer does not hold securities in RareX.

The mineral resource estimate referred to in this announcement was reported by the Company in accordance with Listing Rule 5.8 on 1 May 2023. The Company confirms it is not aware of any new information or data that materially affects the information included in the previous announcement and that all material assumptions and technical parameters underpinning the estimates in the previous announcement continue to apply and have not materially changed.

Cummins Range Mineral Resource Estimate, P2O5≥2.5%

RARE DYKE Tonnes P2O5 TREO + Y2O3 HREO Nd2O3 Pr6O11 Nb2O5 Sc2O3 ThU
Classification (Mt) (%) (ppm) (ppm) (ppm) (ppm) (ppm) (ppm) (ppm)
Indicated 45.9 6.2 5700 290 910 270 1000 90 90
Inferred 368.9 4.0 3030 160 490 150 570 60 40
Total 414.8 4.2 3320 180 540 160 620 70 50
PHOS DYKE Tonnes P2O5 TREO + Y2O3 HREO Nd2O3 Pr6O11 Nb2O5 Sc2O3 ThU
Classification (Mt) (%) (ppm) (ppm) (ppm) (ppm) (ppm) (ppm) (ppm)
Indicated 20.8 8.0 3580 300 720 190 470 80 100
Inferred 83.8 5.4 2340 200 470 120 450 60 60
Total 104.6 5.9 2590 220 520 140 450 70 70
COMBINED Tonnes P2O5 TREO + Y2O3 HREO Nd2O3 Pr6O11 Nb2O5 Sc2O3 ThU
Classification (Mt) (%) (ppm) (ppm) (ppm) (ppm) (ppm) (ppm) (ppm)
Indicated 66.6 6.8 5010 290 850 250 830 90 90
Inferred 452.7 4.2 2900 170 490 140 550 60 40
Total 519.3 4.6 3170 190 540 160 580 70 50

Notes:

  1. Due to effects of rounding, the total may not represent the sum of all components

  2. TREO (ppm) includes: Light Rare Earth Oxides (LREO): La2O3, CeO2, Pr6O11, Nd2O3; and Heavy Rare Oxides (HREO): Sm2O3, Eu2O3, Gd2O3, Tb4O7, Dy2O3, Ho2O3, Er2O3, Tm2O3, Yb2O3, Lu2O3; + Y2O3

  3. ThU comprises ThO2 + U3O8 (ppm)

  4. Mineral Resource is reported from all blocks, classified as either Indicated or Inferred, where interpolated block grade is >2.5%P2O5

About RareX Limited – ASX: REE

RareX Limited (ASX: REE) is a Perth-based rare earths and phosphate project development company. RareX’s focus is on developing its flag-ship Cummins Range Rare Earths and Phosphate Project.

Rare Earths and in particular, NdPr are core enablers of decarbonisation and electrification of our society. NdPr supports high strength magnets which enables low carbon technologies, especially in the electric mobility sector, robotics solutions and renewable energy, particularly the wind energy sector.

Phosphates are one of the three macro nutrients required in fertilisers. Fertilisers are in ever more demand due to population growth, depleting soils and reduced arable land requiring ever more intensive farming.

The Cummins Range Rare Earths and Phosphate Project is in the East Kimberley region of Western Australia. RareX is committed to developing a sustainable, ethical, transparent and secure low carbon rare earth and phosphate supply chain solution for its products which satisfy the two global mega-trends of population growth and electrification.

For further information on the Company and its projects visit www.rarex.com.au

RareX Limited RareX HQ P+61 (0) 863 836 593 RareX Limited (ASX:REE) RareX Limited (ASX:REE)
ASX:REE Level 1, 338 Barker Road @rarex_asx
ABN: 65 105 578 756 Subiaco WA 6008 [email protected]
Australia rarex.com.au

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APPENDIX A Table 1: Drill Collar Information

Hole ID East MGA North MGA RLUTM End Depth Azimuth Dip Type
CDX0003 307195 7866698 392 97 50 60 Diamond
CDX0004 307342 7866505 391 155 50 60 Diamond
CDX0006 307193 7866537 392 216 51 59 Diamond
CDX0007 307269 7866499 392 199 52 59 Diamond
CDX0009 307325 7866444 391 213 49 59 Diamond
CDX0010 307159 7866508 391 231 51 60 Diamond
CDX0012 307038 7866666 392 211 52 59 Diamond
CDX0013 307044 7866720 392 205 51 59 Diamond
CDX0014 307014 7866694 392 227 50 59 Diamond
CDX0015 307374 7866770 392 205 48 58 Diamond
CDX0029 307116 7866264 391 579 50 58 Diamond
CRX0002 307266 7866621 392 90 181 58 RC
CRX0004 307266 7866701 392 102 182 58 RC
CRX0016 307077 7866807 392 126 180 59 RC
CRX0023 307317 7866533 391 114 182 60 RC
CRX0026 307316 7866659 392 132 180 59 RC
CRX0027 307402 7866862 392 108 182 59 RC
CRX0028 307402 7866820 392 114 185 60 RC
CRX0029 307459 7866860 392 114 183 60 RC
CRX0030 307457 7866821 392 114 184 60 RC
CRX0031 307315 7866701 392 102 180 60 RC
CRX0033 307371 7866512 392 84 186 58 RC
CRX0034 307372 7866550 392 108 184 60 RC
CRX0041 307516 7866427 392 96 184 59 RC
CRX0042 307559 7866422 392 90 181 59 RC
CRX0043 307609 7866410 392 96 180 59 RC
CRX0045 307210 7866446 391 72 185 60 RC
CRX0046 307692 7866550 392 96 183 59 RC
CRX0047 307693 7866591 391 96 183 61 RC
CRX0048 307690 7866508 392 96 187 59 RC
CRX0050 307417 7866544 392 102 182 59 RC
CRX0051 307465 7866541 392 96 182 59 RC
CRX0054 307183 7866749 392 156 183 59 RC
CRX0058 307584 7866630 391 84 182 58 RC
CRX0059 307463 7866483 392 96 50 61 RC
CRX0062 307224 7866711 392 108 179 60 RC
CRX0065 307531 7866372 391 120 52 61 RC

RareX Limited RareX HQ P +61 (0) 8 6383 6593 RareX Limited (ASX:REE) ASX:REE Level 1, 338 Barker Road @rarex_asx ABN: 65 105 578 756 Subiaco WA 6008 [email protected] Australia rarex.com.au

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Hole ID East MGA North MGA RLUTM End Depth Azimuth Dip Type
CRX0066 307345 7866543 392 132 278 89 RC
CRX0067 307434 7866712 391 120 51 60 RC
CRX0069 307455 7866682 391 120 56 60 RC
CRX0070 307476 7866643 391 144 54 60 RC
CRX0074 307530 7866795 392 120 46 61 RC
CRX0081 307480 7866749 391 156 49 61 RC

Appendix B

JORC Code, 2012 Edition – Table 1

Section 1: Sampling techniques and data - Metallurgy

Criteria JORC Code explanation Commentary
Sampling
techniques
• Nature and quality of sampling (e.g., cut
channels, random chips, or specific
specialised industry standard measurement
tools appropriate to the minerals under
investigation, such as down hole gamma
sondes, or handheld XRF instruments, etc.).
These examples should not be taken as
limiting the broad meaning of sampling.
• Diamond drill cores and RC chips were sampled
for the metallurgical testwork. Samples were
selected based on drill assays, drill hole location
and intervals, geological and mineralogical data.
Samples were riffle split from bulk samples and
sent to Auralia Metallurgy Perth and/or BV Perth
and/or ALS Perth and/or Nagrom Perth and/or
LabWest Perth for assays and further testwork.
• Include reference to measures taken to
ensure sample representivity and the
appropriate calibration of any
measurement tools or systems used.
• For RC chips, the entire bulk samples were riffle
split to ensure a representative sample from the
selected interval. Quarter diamond drill cores
were sent to laboratories to conduct crushing,
sampling and assaying. All laboratories used in
the assaying of the Cummins Range material were
checked for sampling and assaying equipment
and equipment calibrations / accuracy.
• Aspects of the determination of
mineralisation that are Material to the
Public Report.
In cases where ‘industry standard’ work has
been done this would be relatively simple
(e.g., ‘reverse circulation drilling was used
to obtain 1m samples from which 3 kg was
pulverised to produce a 30 g charge for fire
assay’). In other cases, more explanation
may be required, such as where there is
coarse gold that has inherent sampling
problems. Unusual commodities or
mineralisation types (e.g., submarine
nodules) may warrant disclosure of detailed
information.
• Sample interval selection for the metallurgical
testwork was based on geological controls and
mineralisation of the deposit, the samples were
considered representative of the mineralisation
that were intended to be tested.
RareX Limited
ASX:REE
ABN: 65 105 578 756
RareX HQ
P+61 (0) 8 6383 6593
RareX Limited (ASX:REE)
Level 1, 338 Barker Road
@rarex_asx
Subiaco WA 6008
[email protected]
Australia
rarex.com.au

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Criteria JORC Code explanation Commentary
Drilling techniques • Drill type (e.g., core, reverse circulation,
open-hole hammer, rotary air blast, auger,
Bangka, sonic, etc) and details (e.g., core
diameter, triple or standard tube, depth of
diamond tails, face-sampling bit or other
type, whether core is oriented and if so, by
what method, etc).
• Drilling techniques used for the Cummins Range
samples used for the metallurgical testwork were:
o
Reverse Circulation (RC) drilling in 2020-2021,
2022 using 5 ½ inch diameter hammer.
o
Diamond drilling in 2021- 2022 using HQ and
PQ sized rods.
Drill sample
recovery
• Method of recording and assessing core and
chip sample recoveries and results
assessed.
• Samples used for the metallurgical testwork were
collected by riffle split. Additional laboratory
assays were undertaken on the samples
submitted for the testwork and showed good
alignments to the drill assays.
• Measures taken to maximise sample
recovery and ensure representative nature
of the samples.
• Larger and more capable rigs were used for
collection of the metallurgical samples which
allowed for good recoveries of samples. During
each drill program, all drill rigs were checked by
professional geologists, and all drill holes were
logged and monitored for recoveries and
accuracy prior to sample splitting and logging.
• Whether a relationship exists between
sample recovery and grade and whether
sample bias may have occurred due to
preferential loss/gain of fine/coarse
material.
• Holes used for the metallurgical testwork had
good sample recovery hence minor sample bias.
There is no distinctive relationship exist between
sample recovery and grade.
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.
• All samples used for the metallurgical testwork
were geologically logged to a detail level that
supported the metallurgical studies.
• Whether logging is qualitative or
quantitative in nature. Core (or costean,
channel, etc) photography.
• The logging is qualitative and quantitative in
nature for the metallurgy samples. The recorded
details included: lithology, grainsize, weathering,
colour, alteration, sulphide quantity and type,
structure and veining. Photos were taken for all
core samples.
• The total length and percentage of the
relevant intersections logged.
• Logging of all metallurgical samples were carried
out on geological intervals.
Sub-sampling
techniques and
sample preparation
• If core, whether cut or sawn and whether
quarter, half or all core taken.
• Cores were cut in half and quarter, quarter cores
from each selected interval were used for this
metallurgical testwork.

RareX Limited RareX HQ P +61 (0) 8 6383 6593 RareX Limited (ASX:REE) ASX:REE Level 1, 338 Barker Road @rarex_asx ABN: 65 105 578 756 Subiaco WA 6008 [email protected] Australia rarex.com.au

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Criteria JORC Code explanation Commentary
• If non-core, whether riffled, tube sampled,
rotary split, etc and whether sampled wet
or dry.
• RC chips were riffle split from the bulk bags.
Samples were dry when riffle split.
• For all sample types, the nature, quality and
appropriateness of the sample preparation
technique.
• Samples used for the metallurgical testwork were
diamond drill cores and RC chips which were split
and prepared with appropriate equipment.
Where required, the samples were crushed and
ground to ensure the samples were properly
prepared for the required testwork.
• Quality control procedures adopted for all
sub-sampling stages to maximise
representivity of samples.
• All sample preparation and sampling equipment
was cleaned with adequate procedures before
taking of each sample to ensure there is no cross-
contamination between samples.
• 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.
• Drill assays, mineralogical and geological
information were reviewed for selection testwork
samples. Additional assays on the samples
showed high repeatability of drill assays
suggesting good representivity of the in-situ
material hence no further sampling was required.
• Whether sample sizes are appropriate to
the grain size of the material being
sampled.
• The metallurgical sample sizes were appropriate
to the grain size of the material being sampled.
Where necessary, material was crushed and/or
pulverised before riffle / rotary split to ensure
good consistency of sampling representivity.
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.
• The assay analyses of all samples were conducted
by registered laboratories (i.e., ALS, BV and
Nagrom etc.) with suitable equipment and well-
known quality assurance accreditation to ensure
the accuracy of the assay results. Samples were
assayed by X-ray fluorescence (XRF) and
Inductively Coupled Plasma (ICP).
• For geophysical tools, spectrometers,
handheld XRF instruments, etc, the
parameters used in determining the
analysis including instrument make and
model, reading times, calibrations factors
applied and their derivation, etc.
• There was no reliance upon geophysical tools,
spectrometers, or any other techniques for the
required metallurgical testwork. All assays were
undertaken with appropriate XRF and ICP
equipment at registered laboratories.
• Nature of quality control procedures
adopted (e.g. standards, blanks, duplicates,
external laboratory checks) and whether
acceptable levels of accuracy (i.e. lack of
bias) and precision have been established.
• The metallurgical samples were tested against the
standards and the good alignments to drill assays
confirmed the accuracy of the results.
RareX Limited RareX HQ P+61 (0) 8 6383 6593 RareX Limited (ASX:REE) RareX Limited (ASX:REE)
ASX:REE Level 1, 338 Barker Road @rarex_asx
ABN: 65 105 578 756 Subiaco WA 6008 [email protected]
Australia rarex.com.au

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Criteria JORC Code explanation Commentary
Verification of
sampling and
assaying
• The verification of significant intersections
by either independent or alternative
company personnel.
• There are no significant intercepts mentioned in
this announcement.
• The use of twinned holes. • Twin holes were not used for collection of
metallurgical samples.
• Documentation of primary data, data entry
procedures, data verification, data storage
(physical and electronic) protocols.
• An electronic geological database was used for
data storage. For metallurgical testwork, all raw
data from laboratories, results analysis and
summary reports were documented in a
metallurgy database.
• Discuss any adjustment to assay data. • No adjustment was made to the assay data.
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.
• Drill hole collar locations for the metallurgical
testwork have been surveyed using a differential
GPS with accuracy to 0.1 m.
• Specification of the grid system used. • MGA2020 Zone 52
• Quality and adequacy of topographic
control.
• Drillhole collar locations for the metallurgical
testwork have been surveyed using a differential
GPS with accuracy to 0.1 m.
Data spacing and
distribution
• Data spacing for reporting of Exploration
Results.
• All the samples tested were selected from 43
holes from Rare Dyke and Phos Dyke from a range
of depth and weathering profiles and varying P2O5
grades.
• Whether the data spacing and distribution
is sufficient to establish the degree of
geological and grade continuity appropriate
for the Mineral Resource and Ore Reserve
estimation procedure(s) and classifications
applied.
• The data spacing is considered appropriate for
the metallurgical testwork at this study level.

RareX HQ P +61 (0) 8 6383 6593 Level 1, 338 Barker Road Subiaco WA 6008 [email protected] Australia rarex.com.au

RareX Limited (ASX:REE) @rarex_asx

RareX Limited ASX:REE ABN: 65 105 578 756

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Criteria JORC Code explanation Commentary
• Whether sample compositing has been
applied.
• No composition was undertaken for selected
diamond intervals for this metallurgical testwork.
Quarter cores of each selected intervals were
crushed and ground into suitable sizes before
splitting the representative samples for the test.
• 2 m to 4 m RC composites were completed in
areas where higher grades were not expected.
Representative portion of each selected intervals
were sent to the designated laboratories to
undergo staged crushing and grinding before
being composited, homogenised and split with
suitable equipment.
Orientation of data
in relation to
geological
structure
• Whether the orientation of sampling
achieves unbiased sampling of possible
structures and the extent to which this is
known, considering the deposit type.
• The orientation of the metallurgical sampling is
not considered to be biased towards any
geological characteristics.
• 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.
• N/A
Sample security • The measures taken to ensure sample
security.
• All metallurgical samples were secured with
appropriate labelling system. Samples were
labelled with standard designations and were
stored in locked shed. Samples were transported
to Perth from site by reputable transport
companies. Individual bags are cable tied and the
pallets are wrapped in plastic with detailed
logging sheet included.
Audits or reviews • The results of any audits or reviews of
sampling techniques and data.
• No audits were undertaken however the
Competent Person was involved in all stages of
the metallurgical sampling and tests. In-house
reviews were also completed on the sampling
techniques and testwork results.

RareX HQ P +61 (0) 8 6383 6593 RareX Limited (ASX:REE) Level 1, 338 Barker Road @rarex_asx Subiaco WA 6008 [email protected] Australia rarex.com.au

RareX Limited ASX:REE ABN: 65 105 578 756

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Section 2: Exploration Results - Metallurgy

(Criteria listed in the preceding section also apply to this section.)

Criteria JORC Code explanation Commentary
Mineral tenement
and land tenure
status
• Type, reference name/number, location and
ownership including agreements or material
issues with third parties such as joint
ventures, partnerships, overriding royalties,
native title interests, historical sites,
wilderness or national park and
environmental settings.
• The Cummins Range deposit is located on
tenement E80/5092 and is 100% owned by
Cummins Range Pty Ltd which is a wholly owned
subsidiary of RareX Ltd. Cummins Range Pty Ltd
purchased the tenement from Element 25 with a
potential capped royalty payment of AU$1m
should a positive PFS be completed within 36
months of purchase finalisation.
• The security of the tenure held at the time
of reporting along with any known
impediments to obtaining a licence to
operate in the area.
• No security or impediments with tenement
E80/5092.
Exploration done
by other parties
• Acknowledgment and appraisal of
exploration by other parties.
• CRA Exploration defined REO mineralisation at
Cummins Range in 1978 using predominantly
aircore drilling. Navigator Resources progressed
this discovery with additional drilling after
purchasing the tenement in 2006. Navigator
announced a resource estimate in 2008. Kimberly
Rare Earths drilled additional holes and upgraded
the resource estimate in 2012.
Geology • Deposit type, geological setting and style of
mineralisation.
• The Cummins Range REO deposit occurs within
the Cummins Range carbonatite complex which is
a 2.0 km diameter near-vertical diatreme pipe
that has been deeply weathered but essentially
outcropping with only thin aeolian sand cover in
places. The diatreme pipe consists of various
mafic to ultramafic rocks with later carbonatite
intrusions. The primary ultramafic and
carbonatite rocks host low to high grade rare
earth elements with back ground levels of 1,000-
2,000 ppm TREO and high grade zones up to 17%
TREO. The current resource sits primarily within
the oxidised/weathered zone which reaches to
120 m below the surface. Metallurgical studies
carried out to date show that the rare earth
elements are primarily hosted by monazite which
is a common and favourable host for rare earth
elements.

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