World Class ISR Leaching Grades at Ema
Released
Released
Announcement PDF
ASX Announcement
Released 1st September 2025
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EXCEPTIONAL ISR FIELD TRIAL RESULTS DELIVER
HIGH-GRADE RARE EARTH LEACHING
GRADES OVER 7,500PPM
Field trials return leaching grades up to 14 times higher than mineralised in-situ values
positioning the Ema project on a path towards production
Highlights
•
ISR field trials continue to deliver exceptional results, with pregnant leach
solution (PLS) grades reaching up to 7,800 ppm TREO, more than 14x higher than
in-situ mineralised grades
•
Magnet rare earth oxides (MREO) consistently represent an outstanding 42–45%
of TREO across a 24-day leach period
•
Super high-grade MREO grades peak above 3,500 ppm, averaging 1,151 ppm
sustained across 24 days
•
Critical heavy rare earths (Dy + Tb) exceed 100 ppm in places
•
Samarium concentrations up to 397 ppm, averaging over 5% of TREO —
significant given samarium–cobalt magnets are the most widely used in defense
and aerospace
•
Project development advancing: Feasibility study underway, environmental
permitting progressing, extensional resource drilling 25% complete, and
hydrogeological modelling initiated
Brazilian Critical Minerals Limited (ASX: BCM) (“BCM” or the “Company”) is pleased to announce the
latest laboratory results from rare earths leached via in-situ recovery (ISR) from the first of two pilot
field trial areas at the Ema project.
To view the video of MD, Andrew Reid, discussing this announcement, click on the link below
https://braziliancriticalminerals.com/link/P4xMzP
Brazilian Critical Minerals Ltd (ABN: 82 089 221 634)
AUS: Level 28, 140 St Georges Terrace, Perth WA 6000 T +61 8 6383 7820
BRA: MINERAÇÃO BBX DO BRASIL LTDA, Rua dos Inconfidentes n⁰ 867, Savassi, Belo Horizonte, Minas Gerais, CEP 30.140-128
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TREO & MREO grades from hole H1-F6
9,000
TREO & MREO (ppm)
8,000
7,842
7,321
7,000
6,000
5,535 5,857
4,991
5,000
4,425
4,000
3,486
3,000
2,000
1,000
0
7
3,515
3,519
2,533
2,502
2,197
1,925
2,091
1,166
1,028 1,139 867
1,236 1,176 1,542 1,552
881 970
839
468
1,092 909
1,106
632
501
836
438 497
210 380 417 536 360 502 262
196 370 495
85 204
42 107
14 43
248 27
3,218
2,456 2,593
1,933
30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58
Days
MREO (ppm)
TREO (ppm)
Figure 1. Pregnant liquor solution (PLS) grades extracted from monitoring hole H1-F6 over the period
in which 0.5M Magnesium Sulphate was injected into the mineralised horizon. Yellow range represents
composition of MREO inside the TREO values ranging from 42-45%.
Andrew Reid, Managing Director, commented:
“Hole H1-F6 has delivered phenomenal ISR leaching results, beyond anything we were expecting, which
can only be described as world-class, providing a clear runway to rapidly advance the Ema Project
towards production. Over recent months, we have been astounded by the leaching efficiency and the
continuation of exceptional TREO grades reported from the pregnant leach solution (PLS) extracted from
the field trials.
Today’s results are highly significant as they further validate previous outcomes, demonstrating the
Company’s ability to effectively upgrade and concentrate TREO grades through the ISR process which
will now thrust the project to the forefront of the rare earths sector.
The ability to upgrade 14x the in-situ mineralised grade is beyond comparison.
More importantly, the strength of the magnet rare earth oxides (MREO) has the potential to propel the
Ema Project to the next level, with leached grades exceeding 3,500 ppm. As MREO represents around
90% of the Project’s future revenue, the 42-45% composition achieved now underscores the strategic
and economic significance of these results.
During the field trial, the Company has done nothing more than trickle feed a low-concentration (0.5M)
magnesium sulphate (MgSO₄) solution, through the clay horizon and let mother nature do all the hard
work. We look forward to providing further updates as leaching progresses in the second test area over
the coming weeks.”
Brazilian Critical Minerals Ltd (ABN: 82 089 221 634)
AUS: Level 28, 140 St Georges Terrace, Perth WA 6000 T +61 8 6383 7820
BRA: MINERAÇÃO BBX DO BRASIL LTDA, Rua dos Inconfidentes n⁰ 867, Savassi, Belo Horizonte, Minas Gerais, CEP 30.140-128
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Figure 2. Field pilot trial and set out showing distribution of monitoring holes H1-F9, H1-F8, H1-F7
and H1-F6.
Table 1. PLS solution grades averaged over the leaching cycle from hole H1F6.
No.
Avg MREO
Avg TREO
Hole ID
Day (from)
Day (to)
Days
(ppm)
(ppm)
H1-F6
35
58
24
1,151
2,622
including
42
58
17
1,467
3,335
MREO:TREO
%
42-45%
44%
Comments on Results
Hole H1-F6 is located on the edge of the defined field trial area, as can be seen in Figure 2. Leaching of
rare earths from H1-F6 commenced on day 33 or 34 (Figure 2), in comparison to hole H1-F9, which the
Company previously stated was in a better position to capture early lixiviant primarily as a result of
topographical and slope control which affects hydrological control, started leaching rare earths much
earlier on day 9 (ASX: 18 Aug).
As a result of the slightly slower migration of solution towards H1-F6, the lixiviant has had additional
contact time with the rare earth elements connected to the clay particles resulting in a higher level of
ionic exchange and significantly higher concentration of rare earths in solution.
To date, PLS has only been extracted through pumping from wide spaced vertical extraction holes (ASX:
2 Jul 2025). More than 2,600 litres of high grade PLS has been extracted from the field trials. This system
is designed only to be able to collect a small representative sample of the PLS for TREO analysis.
Brazilian Critical Minerals Ltd (ABN: 82 089 221 634)
AUS: Level 28, 140 St Georges Terrace, Perth WA 6000 T +61 8 6383 7820
BRA: MINERAÇÃO BBX DO BRASIL LTDA, Rua dos Inconfidentes n⁰ 867, Savassi, Belo Horizonte, Minas Gerais, CEP 30.140-128
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Upon commercial scale up, a more comprehensive system designed to collect the vast majority of the
PLS which is readily released during leaching will be implemented in line with ISR projects in other
countries. Some lixiviant called bound water (which is chemically or structurally attached to the clay
minerals) will remain in the clay profile initially, but recovered during the final water flushing phase of
the leaching process.
Approximately 1,000 litres of PLS has been dispatched to the ANSTO facilities in Sydney for processing.
Further process optimisation efforts are to be conducted as part of the bankable feasibility study,
particularly through the key steps of impurity removal and rare earth precipitation leading to the
production of a final mixed rare earth carbonate (MREC) product. Most of the MREC to be produced has
already been earmarked to potential serious offtakers for their analysis and assessment.
Background In-situ mineralised grades
As part of the pilot field trial, BCM drilled a single resource hole at the position of H1-F7 within the field
trial area prior to the injection of any solution. Table 3. displays the results of the grades returned from
the SGS laboratory in Brazil.
Once the field trial water washing is complete a final hole will be drilled as a check of the grades leached
to the data listed below.
Table 2. Assays returned from resource hole drilled within first pilot field location.
Hole ID
H1-F7
Depth (from)
Depth (to)
TREO (ppm)
0
1
348
1
2
559
2
3
598
3
4
495
4
5
438
5
6
646
6
7
537
7
8
595
8
9
594
Average
534
Brazilian Critical Minerals Ltd (ABN: 82 089 221 634)
AUS: Level 28, 140 St Georges Terrace, Perth WA 6000 T +61 8 6383 7820
BRA: MINERAÇÃO BBX DO BRASIL LTDA, Rua dos Inconfidentes n⁰ 867, Savassi, Belo Horizonte, Minas Gerais, CEP 30.140-128
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Field Trials Hugely Successful
BCM has successfully achieved all of its objectives initially established with its ISR pilot field trials over
the last several months;
•
•
•
•
•
•
•
Injected a low strength (0.5M) MgSO4 solution;
Rapidly decreased the pH of the clay zone to the target zone required to leach rare earths over
short distances of leaching;
Achieved fast reactivity of the MgSO4 solution, resulting in rapid leaching of the rare earths into
solution;
Maintained a constant high flow rate of solution through the clays, indicating strong
permeability;
Maintained a steady and elevated increase in MgSO4 solution levels throughout the clay zone
indicative that a solid impermeable basement exists;
Extracted very high PLS grades from the test area; and
Precipitated the rare earths from solution.
Monitoring hole H1-F9 was positioned within the optimal position downslope of the injection wells to
intercept the solution flow through the clays. PLS extracted from this hole resulted in grades over 6
times higher than the in-situ grades recovered from a drill hole, drilled prior to the commencement of
leaching (Table 1.)
The ability to concentrate much higher grades in the PLS compared to the mineralisation grade insitu(averaging only 534ppm TREO) is due to a number of reasons, including the leach chemistry, choice
of lixiviant (reagent), pH, and temperature, which all affect dissolution rates.
Importantly, lower natural concentrations of rare earths in the deposit can give rise to much richer PLS
grades (Figure 1.), as there is no direct relationship between in-situ grades and solution grades due to
variations in leaching efficiencies.
Flow rates and contact time also play an important role, with more controlled leaching often yielding
higher grades in PLS, due to good hydraulic control and good confinement of the leaching solution which
prevents loss or dilution of the solution, maintaining higher PLS grades.
This announcement has been authorised for release by the Board of Directors.
Enquiries
For more information please contact:
Andrew Reid
Managing Director
Brazilian Critical Minerals Limited
Andrew.reid@braziliancriticalminerals.com
Brazilian Critical Minerals Ltd (ABN: 82 089 221 634)
AUS: Level 28, 140 St Georges Terrace, Perth WA 6000 T +61 8 6383 7820
BRA: MINERAÇÃO BBX DO BRASIL LTDA, Rua dos Inconfidentes n⁰ 867, Savassi, Belo Horizonte, Minas Gerais, CEP 30.140-128
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Brazilian Critical Minerals Limited (BCM) is a mineral
exploration company listed on the Australian
Securities Exchange.
Its major exploration focus is Brazil, in the Apuí
region, where BCM has discovered a world class Ionic
Adsorbed Clay (IAC) Rare Earth Elements deposit. The
Ema IAC project is contained within the 781 km² of
exploration tenements within the Colider Group and
adjacent sediments.
BCM has defined an indicated and inferred MRE of
943Mt of REE’s with metallurgical recoveries
averaging 68% MREO, representing some of the
highest for these types of deposits anywhere in the
world.
The Company has converted the MRE central portion
from Inferred into the Indicated category with an
extensive drill program during 2024 which has
underpinned the scoping study and economic
analysis released in February 2025.
Ema REE Global Mineral Resource Estimate @COG 500ppm TREO
JORC
cut-off
Tonnes
TREO
NdPr
DyTb
MREO
MREO: TREO
Category
ppm TREO
Mt
ppm
ppm
ppm
ppm
%
Indicated
500
248
759
176
16
192
25
Inferred
500
695
701
165
16
181
26
Total
500
943
716
168
16
184
26
The information in this announcement relates to previously reported exploration results and mineral
resource estimates for the Ema Project released by the Company to ASX on 22 May 2023, 17 July 2023,
19 July 2023, 31 July 2023, 13 Sep 2023, 19 Oct 2023, 06 Dec 2023, 06 Feb 2024, 22 Feb 2024, 13 Mar
2024, 02 Apr 2024, 08 Oct 2024 19 Nov 2024, 21 Jan 2025, 17th Feb 2025, 26th Feb 2025, 10th March
2025, 13th March 2025, 28th April 2025, 27th May 2025, 28th May, 13 June 2025, 01 July 2025 and 18
August 2025. The Company confirms that is not aware of any new information or data that materially
affects the information included in the above-mentioned releases and continues to apply and have not
materially changed in accordance with listing Rule 5.23.2.
Brazilian Critical Minerals Ltd (ABN: 82 089 221 634)
AUS: Level 28, 140 St Georges Terrace, Perth WA 6000 T +61 8 6383 7820
BRA: MINERAÇÃO BBX DO BRASIL LTDA, Rua dos Inconfidentes n⁰ 867, Savassi, Belo Horizonte, Minas Gerais, CEP 30.140-128
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Competent Person Statement
The information in this announcement that relates to exploration results is based on information
compiled by Mr. Antonio de Castro, BSc (Hons), MEMBER of AusIMM, CREA, who acts as BCM´s Senior
Consulting Geologist through the consultancy firm, ADC Geologia Ltda. Mr. de Castro has sufficient
experience which is relevant to the type of deposit under consideration and to the reporting of
exploration results and analytical and metallurgical test work to qualify as a competent person as
defined in the 2012 Edition of the Joint Ore Reserves Committee (JORC) “Australasian Code for Reporting
of Exploration Results, Mineral Resources and Ore Reserves”. Mr. Castro consents to the report being
issued in the form and context in which it appears.
Appendix 1: Table 1 Ema project – JORC Code (2012 Edition) metallurgical sampling techniques and data.
Item
JORC code explanation
Comments
Sampling Techniques
•
Exploration results are based on solution samples
extracted during ISR field trials conducted by WSP with
support of BCM´s exploration team.
•
Nature and quality of sampling.
•
Include reference to measures taken to ensure sample
representativity and the appropriate calibration of any
measurement tools or systems used.
•
The data presented is based on solution collected from
the monitoring holes after percolation through soils and
saprolite, mined by in-situ techniques.
•
Aspects of the determination of mineralisation that are Material
to the Public Report.
•
Sampling and measurements were supervised by the
Chief Metallurgist and WSP´s hydrogeologist.
•
Sample was extracted from deep wells drilled down to
bedrock basement whereby solution was pumped to the
surface for collection and further analysis
•
Solution samples were tested for pH with a probe called
Incoterm brand pen-type digital pH meter, after
calibration.
•
Rare Earths + impurities were precipitated by the
addition of sodium carbonate.
•
These results are specific for the tracer test area.
•
All auger holes in the test area were drilled with 6” bit.
•
The deep injection holes in H1 area were the only ones
cased with 2” sliced PVC pipes, all others were cased with
sliced 4” PVC pipes.
•
Coarse gravel sand was inserted between the pipes and
the edges of the holes to create the filter zone.
•
Cement around the collars were built to prevent running
waters from rain to contaminate the underground water.
•
Holes drilled are not included in any Mineral Resource
Estimation.
Drilling
Techniques
•
Drill type (eg core. reverse circulation. openhole hammer. rotary air blast. auger. Bangka.
sonic. etc) and details (eg core diameter. triple
or standard tube. depth of diamond tails. facesampling bit or other type. whether core is
oriented and if so. by what method. etc).
Brazilian Critical Minerals Ltd (ABN: 82 089 221 634)
AUS: Level 28, 140 St Georges Terrace, Perth WA 6000 T +61 8 6383 7820
BRA: MINERAÇÃO BBX DO BRASIL LTDA, Rua dos Inconfidentes n⁰ 867, Savassi, Belo Horizonte, Minas Gerais, CEP 30.140-128
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Item
Drill Sample
Recovery
Logging
SubSampling
Techniques
and
Sampling
Procedures
Quality of
Assay Data
and
Laboratory
Tests
JORC code explanation
Comments
•
Method of recording and assessing core and
chip sample recoveries and results assessed.
•
n/a
•
Measures taken to maximise sample recovery
and ensure representative nature of the
samples.
•
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.
•
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.
•
n/a
•
Whether logging is qualitative or quantitative in
nature. Core (or costean. channel. etc)
photography.
•
The total length and percentage of the relevant
intersections logged.
•
If core. whether cut or sawn and whether
quarter. half or all core taken.
•
n/a
•
If non-core. whether riffled. tube sampled.
rotary split. etc and whether sampled wet or
dry.
•
For all sample types. the nature. quality and
appropriateness of the sample preparation
technique.
•
Quality control procedures adopted for all subsampling stages to maximise representativity of
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.
•
Whether sample sizes are appropriate to the
grain size of the material being sampled.
•
The nature. quality and appropriateness of the
assaying and laboratory procedures used and
whether the technique is considered partial or
total.
•
•
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.
•
Nature of quality control procedures adopted
(eg standards. blanks. duplicates. external
laboratory checks) and whether acceptable
The filtered solution samples were assayed using a Varian
ICP-OES instrument (model Vista MPX710), calibrated
using Specsol certified standards for each of the rare
earth elements. Quality control is conducted using a
standard reference sample previously prepared from
Ema mineralisation and assayed by SGS in Vaspasiano,
Brazil. The reference sample is read for each element
before and after running each assay batch. Any batches
in which the standard sample result plots outside two
standard deviations from the established value are rerun.
Brazilian Critical Minerals Ltd (ABN: 82 089 221 634)
AUS: Level 28, 140 St Georges Terrace, Perth WA 6000 T +61 8 6383 7820
BRA: MINERAÇÃO BBX DO BRASIL LTDA, Rua dos Inconfidentes n⁰ 867, Savassi, Belo Horizonte, Minas Gerais, CEP 30.140-128
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Item
JORC code explanation
Comments
levels of accuracy (ie lack of bias) and precision
have been established
•
The assaying methodology is in line with industry
standard and is considered appropriate for rare earth
solutions. The technique is considered to be total.
•
The verification of significant intersections by
either independent or alternative company
personnel.
•
n/a
•
The use of twinned holes.
•
Documentation of primary data. data entry
procedures. data verification. data storage
(physical and electronic) protocols.
•
Discuss any adjustment to assay data.
•
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.
•
The UTM WGS84 zone 21S grid datum is used for current
reporting. The drill holes collar locations were picked up
by a licensed surveyor using a Trimble total station (+/5cm), referenced to a government survey point.
•
Specification of the grid system used.
•
Quality and adequacy of topographic control.
•
Data spacing for reporting of Exploration
Results.
•
n/a
•
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.
•
Whether sample compositing has been applied.
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.
•
n/a
•
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.
•
The solution samples sealed in plastic bags were sent
directly to Catalão by airfreight and courier to the
laboratory. The Company has no reason to believe that
sample security poses a material risk to the integrity of
the assay data.
Audit or
Reviews
•
The results of any audits or reviews of sampling
techniques and data.
•
The sampling techniques and data have been reviewed
by the Competent Person and are found to be of industry
standard.
Verification
of Sampling
and Assaying
Location of
Data Points
Data Spacing
and
Distribution
Brazilian Critical Minerals Ltd (ABN: 82 089 221 634)
AUS: Level 28, 140 St Georges Terrace, Perth WA 6000 T +61 8 6383 7820
BRA: MINERAÇÃO BBX DO BRASIL LTDA, Rua dos Inconfidentes n⁰ 867, Savassi, Belo Horizonte, Minas Gerais, CEP 30.140-128
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JORC (2012) Table 1 - Section 2: Reporting of Exploration Results
Criteria
JORC code explanation
Mineral
Tenement and
Land Tenure
Status
Exploration
done by Other
Parties
Geology
Drill Hole
Information
•
Commentary
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 EMA and EMA EAST leases are 100% owned
by BCM with no issues in respect to native title
interests. historical sites. wilderness or national
park and environmental settings.
•
The company is not aware of any impediment to
obtain a licence to operate in the area.
•
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.
•
Acknowledgment and appraisal
exploration by other parties.
of
•
No exploration by other parties has been
conducted in the region.
•
Deposit type. geological setting and style of
mineralisation.
•
The REE mineralisation at EMA is contained within
the tropical lateritic weathering profile developed
on top of felsic rocks. rhyolites as per the Chinese
deposits.
•
The REE mineralisation is concentrated in the
weathered profile where it has dissolved from the
primary mineral. such as monazite and xenotime.
then adsorbed on to the neo-forming fine
particles of aluminosilicate clays (e.g. kaolinite.
illite. smectite).
•
This adsorbed iREE is the target for extraction and
production of REO.
•
Auger locations and diagrams are presented in
this announcement.
•
Details are tabulated in the announcement.
•
•
A summary of all information material to
the understanding of the exploration
results including a tabulation of the
following information for all Material drill
holes:
•
easting and northing of the drill
hole collar
•
elevation or RL (Reduced Level –
elevation above sea level in
metres) of the drill hole collar
•
dip and azimuth of the hole
•
down
hole
length
interception depth
•
hole length.
and
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.
Brazilian Critical Minerals Ltd (ABN: 82 089 221 634)
AUS: Level 28, 140 St Georges Terrace, Perth WA 6000 T +61 8 6383 7820
BRA: MINERAÇÃO BBX DO BRASIL LTDA, Rua dos Inconfidentes n⁰ 867, Savassi, Belo Horizonte, Minas Gerais, CEP 30.140-128
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Criteria
JORC code explanation
Data
aggregation
methods
•
In reporting Exploration Results. weighting
averaging techniques. maximum and/or
minimum grade truncations (eg. cutting of
high grades) and cut-off grades are usually
Material and should be stated.
Commentary
•
REE grades reported refer to solution collected to
monitor the ISR process.
•
No metal equivalent values are reported.
•
REE grades reported refer to solution collected to
monitor the ISR process.
•
Mineralisation orientation is assumed to be flat.
•
Where aggregate intercepts incorporate
short lengths of high-grade results and
longer lengths of low-grade results. the
procedure used for such aggregation
should be stated and some typical
examples of such aggregations should be
shown in detail.
•
The assumptions used for any reporting of
metal equivalent values should be clearly
stated.
•
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’).
•
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.
•
Maps and tables of the auger hole’s location and
target location are inserted.
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 grades reported refer to solution collected to
monitor the ISR process.
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.
•
No other significant exploration data has been
acquired by the Company.
Relationship
between
mineralization
widths and
intercepted
lengths
Diagrams
Brazilian Critical Minerals Ltd (ABN: 82 089 221 634)
AUS: Level 28, 140 St Georges Terrace, Perth WA 6000 T +61 8 6383 7820
BRA: MINERAÇÃO BBX DO BRASIL LTDA, Rua dos Inconfidentes n⁰ 867, Savassi, Belo Horizonte, Minas Gerais, CEP 30.140-128
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Criteria
JORC code explanation
Further Work
•
•
Commentary
The nature and scale of planned further
work (eg tests for lateral extensions or
depth extensions or large-scale step-out
drilling).
•
Additional metallurgical test
magnesium sulphate leach.
•
Extraction of PLS for stream line precipitation and
impurity removals at ANSTO.
Diagrams clearly highlighting the areas of
possible extensions. including the main
geological interpretations and future
drilling areas. provided this information is
not commercially sensitive.
•
Detail topography survey with LIDAR for mine
planning
•
Geophysics survey, Electro resistivity to define
the saprolite/fresh rock boundary and faults in
the rock.
work
with
Appendix 2 – List of Drill Hole Collars
Hole ID
TANKS
East
North
RL (m)
185682,99
9183028,31
146,27
na
HI01-F1
185670,65
9183034,56
144,36
HI01-F2
185673,64
9183034,40
HI01-F3
185676,63
9183034,13
HI01-F4
185679,64
HI01-F5
185682,60
HI01-F6
Depth (m)
Azimuth
Dip
10.0
0
-90
144,25
9.7
0
-90
144,40
9.3
0
-90
9183033,91
144,36
11.2
0
-90
9183033,81
144,55
11.5
0
-90
185672,24
9183037,43
143,99
11.6
0
-90
HI01-F7
185675,16
9183037,22
143,81
11.4
0
-90
HI01-F8
185678,26
9183036,92
143,90
10.7
0
-90
HI01-F9
185681,29
9183036,74
143,67
10.0
0
-90
HI02-F1
185658,77
9183055,00
141,37
5.7
0
-90
HI02-F2
185660,73
9183054,87
141,58
5.7
0
-90
HI02-F3
185662,73
9183054,95
141,38
5.7
0
-90
HI02-F4
185658,75
9183057,06
141,16
5.7
0
-90
HI02-F5
185660,59
9183056,71
141,08
5.7
0
-90
HI02-F6
185662,62
9183056,84
141,21
5.7
0
-90
HI02-F7
185658,54
9183059,01
140,83
5.7
0
-90
HI02-F8
185660,56
9183058,92
140,69
5.7
0
-90
HI02-F9
185662,53
9183058,74
140,80
5.7
0
-90
HI02-F10
185659,77
9183057,94
140,82
12.0
0
-90
HI02-F11
185659,62
9183060,83
140,37
12.0
0
-90
HI02-F12
185659,51
9183062,82
140,09
12.0
0
-90
Brazilian Critical Minerals Ltd (ABN: 82 089 221 634)
AUS: Level 28, 140 St Georges Terrace, Perth WA 6000 T +61 8 6383 7820
BRA: MINERAÇÃO BBX DO BRASIL LTDA, Rua dos Inconfidentes n⁰ 867, Savassi, Belo Horizonte, Minas Gerais, CEP 30.140-128
Page | 12
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