Skip to main content

AI assistant

Sign in to chat with this filing

The assistant answers questions, extracts KPIs, and summarises risk factors directly from the filing text.

VHM LIMITED Capital/Financing Update 2023

Jan 16, 2023

66004_rns_2023-01-16_c2fd2cf3-86cf-40f8-8b57-d45ebb334953.pdf

Capital/Financing Update

Open in viewer

Opens in your device viewer

ASX Announcement

17 January 2023

ANSTO Testwork Demonstrates High Extractions of Rare Earth Minerals

Highlights:

  • Results show extractions of >99% achieved for critical light rare earths Nd/Pr and >98% for critical heavy rare earths Dy/Tb

  • Testwork confirms Rare Earth Mineral Concentrate is highly amenable to the conventional Sulphate Bake processing to a Mixed Rare Earth Carbonate product

  • ANSTO commissioned to progress Pilot Plant testwork in Q1 2023

VHM Limited ( “VHM” or the “Company” ), has been progressing metallurgical testwork and is now pleased to announce the metallurgical test results from static trials ( “pre-pilot testwork” ) conducted by leading rare earth research and testwork facility Australian Nuclear Science and Technology Organisation ( “ANSTO” ).

The results have confirmed exceptional leach extraction rates (>99%) are possible from the Rare Earth Mineral Concentrate ( “REMC” ) at the Goschen Project deposit. The testwork is being undertaken to finalise the plans and inform final assessment of the Hydromet Plant (Phase 1A) at the Goschen Project.

The samples used at ANSTO for metallurgical testwork are based on a sonic bulk sample drill program that the Company undertook during 2022, within Area 1 and Area 3 Extended. A total of 223 holes in Area 1 and 65 holes in Area 3 Extended were drilled, totalling 8,310.4m, using sonic and diamond drill rigs.

The intent of the bulk sampling program was to generate sufficient REMC for pilot plant testwork to support the Hydromet Plant process development.

VHM Managing Director, Graham Howard commented:

“We are extremely encouraged by the high extractions of rare earth minerals shown in the testwork results, a step further in finalising plans and informing final assessment for VHM’s Goschen Project and the future Hydromet Plant.

“Furthermore, encouraging initial discussions with potential off-take partners have indicated that the Mixed Rare Earth Carbonate will be a highly sought after refinery feedstock, due to the unique and desirable proportions of the high value critical rare earths.”

ABN 58 601 004 102 Suite 8, 110 Hay Street SUBIACO WA 6008

Details of Testwork

VHM has completed comprehensive testwork previously at ANSTO as well as flowsheet evaluation testwork in 2018 on a typical sample of REMC from the Goschen Project. The recent work demonstrated that the Goshen REMC is highly amenable to processing through to a high value upgraded Mixed Rare Earth Carbonate (“ MREC” ) product as set out in the Prospectus dated 21 November 2022 as supplemented by the supplementary prospectus dated 5 December 2022, lodged with ASX on 5 January 2023.

Based on the ANSTO testwork the Company selected the Sulphate Bake route, as it provides the highest extractions and most robust economic case.

In preparation for pilot plant testwork, ANSTO has undertaken pre-pilot testwork using the industry standard acid baking and water leach route. The purpose of this work is to define piloting conditions such as acid addition, kiln temperature and reaction time. The pre-pilot testwork has demonstrated exceptional extractions >99% for the critical light rare earth metals (praseodymium and neodymium) and >98% for the critical heavy rare earth metals (terbium and dysprosium) as shown in Figure 1. Testwork for the subsequent stages of the Hydromet Plant is ongoing. Projected commercial recoveries will be further defined at the pilot plant testwork stage (REMC to MREC).

Figure 1: Leach Extractions Based on Optimised Bake Conditions of Acid Addition, Temperature, and Time

==> picture [338 x 229] intentionally omitted <==

----- Start of picture text -----

100
99
98
97
96
95
94
93
92
91
90
La Ce Pr Nd Sm Eu Gd Tb Dy Y
Extraction (%)
----- End of picture text -----

2

ANSTO continues with pre-pilot optimisation in parallel with the design and procurement of equipment for the pilot due to commence in Q1 of 2023. When complete, the pilot will demonstrate the entire flowsheet from REMC to the MREC product and include water and reagent recycle. The pilot plant flowsheet that has been developed by ANSTO for the Goschen REMC is shown in Figure 2.

Figure 2: ANSTO Pilot Flowsheet

==> picture [452 x 393] intentionally omitted <==

The REMC is considered industry leading not only in its exceptionally high rare earth grade (>60% TREO[1] ), but also in the very high proportion of high value critical rare earths Pr, Nd, Tb and Dy. These rare earths are essential to the automotive industries transition from internal combustion engine vehicles to battery electric vehicles and plug-in hybrid electric vehicles.

A typical analysis of the REMC (as tested previously by ANSTO in 2018) is given in Table 1.

Note (1): Based on ANSTO testwork completed in 2018

3

Table 1: Typical REMC Analysis

RE Oxide Assay (wt %) Proportion
La2O3
CeO2
Pr6O11
Nd2O3
Sm2O3
Eu2O3
Gd2O3
Tb4O7
Dy2O3
Ho2O3
Er2O3
Tm2O3
Yb2O3
Lu2O3
Y2O3
11.2
23.7
2.54
10.1
1.62
0.06
1.41
0.2
1.17
0.22
0.68
0.09
0.61
0.08
7.71
18.2%
38.6%
4.1%
16.5%
2.6%
0.1%
2.3%
0.3%
1.9%
0.4%
1.1%
0.1%
1.0%
0.1%
12.6%
LREO1
MREO2
HREO3
TREO
47.5
3.09
10.8
61.39
77.4%
5.0%
17.5%
100.0%

Note (1): Light rare earth oxides (LREO): La, Ce, Pr, Nd Note (2): Middle rare earth oxides (MREO): Sm, Eu, Gd Note (3): Heavy rare earth oxides (HREO): Tb, Dy, Ho, Tm, Yb, Lu & Y

The combination of the exceptionally high grade (>60% TREO) REMC in conjunction with demonstrated high extraction rates is expected to result in low capex and opex to produce the MREC product. As a result of the purity, there are expected to be lower reagent costs, smaller kiln, and lower energy costs, adding to VHM’s competitive proposition.

The Company will commence pilot plant testwork in Q1 2023 with ANSTO, the results of which will inform a future engineering study scheduled thereafter. Piloting will give VHM detailed engineering solutions, the ability to order long-lead items for the Hydromet Plant and provide product offtake for marketing.

This announcement has been approved by the Board of VHM.

4

For further information contact:

Carly O’Regan

Executive General Manager, Corporate and Investor Relations M: 61 431 068 814 E: [email protected]

Ian Hobson

Company Secretary M: 0407 421 185 E: [email protected]

Media

James Strong Citadel-MAGNUS M: +61 448 881 174 E: [email protected]

Competent Person’s Statement

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 VHM.

The information in this release that relates to Exploration Results, is based on information and supporting documentation compiled by Mr Graham Howard, who is an employee of VHM Limited. Mr Howard is a Competent Person who is a Fellow of Australasian Institute of Mining and Metallurgy and who consents to the inclusion in the report of the matters based on his information in the form and context in which it appears. Graham Howard has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity being undertaken to qualify as a Competent Person as defined in the 2012 Edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (JORC Code 2012).

Forward Looking Statement

This document may contain certain forward-looking statements concerning VHM Limited. Forwardlooking statements are not statements of historical fact and actual events, and results may differ materially from those described in the forward-looking statements as a result of a variety of risks, uncertainties and other factors. Forward-looking statements are inherently subject to business, economic, competitive, political, and social uncertainties, and contingencies. Many factors could cause the Company’s actual results to differ materially from those expressed or implied in any forward-looking information provided by the Company, or on behalf of, the Company. Such factors include, among other things, risks relating to additional funding requirements, metal prices, exploration, development and operating risks, competition, production risks, regulatory restrictions, including environmental regulation and liability and potential title disputes.

Forward-looking statements in this document are based on the company’s beliefs, opinions and estimates of VHM Limited as of the dates the forward-looking statements are made, and no obligation is assumed to update forward looking statements if these beliefs, opinions and estimates should change or to reflect other future developments.

5

JORC Code, 2012 Edition – Table 1

Area 1 and Area 3 Extended- JORC Table 1 (JORC Code, 2012 Edition) Section 1 Sampling Techniques and Data

(Criteria in this section apply to all succeeding sections)

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.

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
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 1 m 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.
• Sampling activities conducted in Area 1 and Area 3
Extended included Sonic drilling and Diamond Drilling.
• Metallurgical bulk sample was completed on Sonic
Drilling.
• Geotechnical logging was completed on selective
holes in field on both Sonic Drilling and Diamond
Drilling, geotechnical samples of target material was
packaged to preserve insitu attributes to enable testing
of material properties in specialist external
laboratories.
• Sonic drilling was used to obtain samples at one metre
intervals. The following information covers the
sampling process:
• The full one-metre drill samples were collected in
plastic sheaths and placed in trays suitable for storing
up to three meter intervals.
• Metallurgical bulk sample was processed at the
Company’s Kerang facility. The Company’s Manager
Geology, Principal Mining Engineer and Principal
Metallurgist defined composition of metallurgical
samples. Metallurgical samples were compiled from
multiple holes representative of likely ore feed
characteristics of future process plant operations as
defined by the Ore Reserve.
• Metallurgical samples were taken that were
representative of ore zones defined by the Ore
Reserve (previously described in the Prospectus) as
well as low grade sub ore and waste material.
Samples were designed to test feed parameters based
on the metallurgical flow sheet prepared for the
Goschen Definitive Feasibility Study.
• Sample logging software was used at the drill rig and
at the Kerang Facility for recording sample intervals
and descriptions.
• Each metallurgical sample were compiled in bulka
bags, with each bulka bag representing ore zones, low
grade sub ore and waste material. The metallurgical
samples were weighed, bulka bags were sealed and

6

Criteria JORC Code Explanation Commentary
dispatched to the Mineral Technologies metallurgical
testing facility for analysis.
• Sub samples were collected for moisture and bulk
density testwork. Samples were selected on geological
intervals based on logging data from each sonic hole
and geological and assay data from existing Mineral
Resource estimate (reported in the Prospectus).
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.).
• Numac Drilling and Star Drilling were the contractors
used for the 2022 sonic drilling and sampling program
upon which the Goschen 2022 metallurgical samples
was based.
• A total of 306 sonic and diamond holes were drilled
totalling 8,854.4m informing the metallurgical testwork
and geotechnical analysis for Area 1 and Area 3
Extended.
• Of the 306 holes drilled, 288 sonic holes were drilled
for metallurgical bulk sampling, totalling 8310.4m.
• A breakdown by location for the 288 sonic holes are
as follows:
• 223 sonic drill holes were completed in Area 1
• 65 holes in Area 3 Extended

The sonic drill collar spacing provided representative
samples across Area 1 and Area 3 Ore Reserve.
• Of the 306 holes drilled, 18 geotechnical holes were
drilled totalling 544m.
• A breakdown by location and drill type for the 18
geotechnical holes are as follows:
• 10 sonic holes totalling 238m were drilling in Area
1 for geotechnical analysis
• 1 diamond drill hole totalling 28m was drilled in
Area 1 for geotechnical analysis.
• 7 diamond drill holes totalling 278m were drilled in
Area 3 Extended for geotechnical analysis.
• Diamond drilling was completed using a PQ3 drill rod
resulting in a core diameter of 83mm. Drill hole depths
averaged 30m deep with a maximum of 40m deep.
• The Company trialled 8 holes which used a
combination of arguer precollar with combined with a
tail based on sonic drill method that targeted
metallurgical sample horizons. Delays in productivity
resulted in conversion for the remainder of the
program to 100% sonic drilling method.

7

Criteria JORC Code Explanation Commentary
• Sonic drilling used outer diameter which ranged from
152 mm (6 inch) – 200mm (8 inch) in diameter. Drill
hole depths averaged 30m deep with a maximum of
35m deep. One primary hole and up to three
subsidiary holes were completed at each drill location
centroid in Area 1.
• Sonic drilling is a standard technique for collection of
sample from sand hosted deposits. Sonic drilling uses
high frequency resonant energy generated in the
Sonic head. This is used to advance the core barrel
and core casing to sample the sand hosted heavy
mineral deposit. The sonic rigs were mounted on a
prime mover or tracks and a medium or heavy rigid
truck is used for support. The Sonic drill rigs use water
for the drilling process (no drilling muds are required).
Any excess water utilised during drilling was captured
within above ground water tanks. Whole sonic core
was collected for metallurgical analysis.
Drill sample
recovery

Method of recording and assessing
core and chip sample recoveries
and results assessed.

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.
• Drill sample recovery is monitored by recording
sample condition from 'dry good' to 'wet poor'.
• While initially collaring the hole, limited sample
recovery can occur in the initial 0m to 1m sample
interval owing to sample and air loss into the
surrounding loose soil. The initial 0m to 1m sample
interval is drilled very slowly in order to achieve
optimum sample recovery.
• For sonic drilling, each entire one-metre sample is
collected at the drill rig and enclosed within a plastic
sheath. Each interval is then placed in a storage tray
for dispatch to the initial split preparation facility.
• At the end of each drill rod, the drill string is cleaned to
remove any clay and silt potentially built up in the
sample tubes.
• For diamond drilling, core sample recovery was
captured in geotechnical logging documented by a
geotechnical consultant, Pitt&Sherry.
• Minor core loss was observed for both sonic and
diamond drilling.
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.
• Each sonic and diamond sample was qualitatively
logged into a field-validated data capture software
package, and later uploaded to the AcQuire database.
• The samples were logged for lithology, colour,
grainsize, sorting, hardness, sample condition,
washability, estimated heavy mineral content,
estimated slimes content.

8

Criteria JORC Code Explanation Commentary

Whether logging is qualitative or
quantitative in nature. Core (or
costean, channel, etc.)
photography.

The total length and percentage of
the relevant intersections logged.
• Primary and subsidiary drill holes were logged in full.
All sonic drill holes were logged using hand held
gamma equipment. Intervals were recorded every
100mm down hole. 65 Area 3 Extended sonic holes
had additional logging using hand held XRF analysis
equipment.
• Logging is undertaken with reference to a Drilling
Guideline with codes prescribed and guidance on
description to ensure consistent and systematic data
collection.
Sub-
sampling
techniques
and sample
preparation

If core, whether cut or sawn and
whether quarter, half or all core
taken.

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 sub-sampling stages to
maximise representivity 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.
• Sub samples were collected for bulk sample and
moisture analysis.
• The water table depth, if intersected, was noted in all
geological logs.
• Almost all the samples are silty sand, sand, sandy
clay, clayey sand, or clay and this sample preparation
method is considered appropriate.
• The sample sizes were deemed suitable to reliably
capture THM, slime, and oversize characteristics,
based on industry experience of the geologists
involved and consultation with principal metallurgist.
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.

For geophysical tools,
spectrometers, handheld XRF
instruments, etc., the parameters
used in determining the analysis
including instrument make and
model, reading times, calibrations
• The 2022 bulk sample program undertook the
following sample logging process;
• The wet panning at the drill site or at Kerang site
provides an estimate of the THM% which is sufficient
for the purpose of determining approximate
concentrations of THM in the first instance.
• Sonic sample:
• The individual one-metre sonic samples were
photographed, and hand held gamma counts recorded
on 0.1m intervals. These were compared with logging
data and original aircore data that informed Mineral

9

Criteria JORC Code Explanation Commentary
factors applied and their derivation,
etc.

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.
Resource estimation in the area that bulk samples
were extracted.
• Primary sonic holes twinned the original aircore holes,
providing reconciliation of the geology interpretation
against aircore hole data that formed the basis of
geology interpretation of the Mineral Resource.
Subsidiary sonic holes drilled at centroid provided
further reconciliation data on the variability of the
geological interpretation.
• The sealed bulk samples were delivered to Mineral
Technologies metallurgical testing facility on the Gold
Coast Queensland.
• Metallurgical samples were processed through the
Mineral Technologies facility in either 10 tonne or 20
tonne batches.
• A sub-sample from each bulk bag was extracted for
reference purposes.
• The whole batch was then homogenised and be
processed through a continuous feed preparation plant
(FPP) circuit, consisting of a scrubber/trommel, a fine
screen and a de-sliming stage. The aim of the circuit is
to prepare feed suitable for beneficiation by gravity
spirals.

Sub-samples of the FPP feed and product including
slimes and oversize were retained.

Sub-samples of each bulk bag were also retained for
reference purposes / future use.

A 10t sample of material originating from Area 1
representing the initial years of mining was
homogenised and used for flowsheet verification test
work. Assay across particle size ranges, specific
gravity, particle size diameter and mineralogy will be
used for a future metallurgical balance.

The prepared feed was then processed through a
gravity concentrator circuit, consisting of a gravity
spiral separation followed by wet table upgrade of the
spiral concentrate.

The aim of the circuit was to produce a Heavy Mineral
concentrate (HMC) recovering Rare Earth Mineral,
Zircon, and high SG Ti-minerals only.

Sub-samples of the WCP products were retained.

The HMC was processed through an REMC flotation
plant circuit.

10

Criteria JORC Code Explanation Commentary

The aim of the circuit was to produce a final mixed
Rare Earth Mineral Concentrate (REMC) meeting the
DFS specification.
• Assay methodology for results reported by ANSTO are
based on a sub-sample of the as-supplied moist
REMC being dried and the moisture content
determined. A representative sub-sample was
separated for elemental analysis. The solid feed and
any subsequent leach residue solids were be analysed
by a combination of XRF, and fusion / digest followed
by ICP-OES and ICP-MS analysis of the digest
liquor(s).
• Both Metallurgical testing facilities maintain QAQC
systems.
Verification
of sampling
and assaying

The verification of significant
intersections by either independent
or alternative company personnel.

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.
• All results were checked by the company's Geology
Manager and principal metallurgists.
• The company's competent person, Geology Manager,
Principal Metallurgist, Principal Mining Engineer, and
an independent Peer reviewer made periodic visits to
the Goschen site and Kerang facility where
metallurgical samples were processed and combined
into bulka bags.
• Principal metallurgists managed on a weekly basis
metallurgical sample program with Mineral
Technologies testing facility and or Australian Nuclear
Science and Technology Organisation (ANSTO).
• A process of laboratory data validation using mass
balance is undertaken to identify entry errors or
questionable data.
• Results compared with previous metallurgical
programs and or Mineral Resource and Ore Reserve
data.
• The field and laboratory data were exported from the
VHM's AcQuire database and imported into Datamine
by a geologist contracted to VHM Limited, which is
appropriate for this stage in the program. Data
validation criteria are included to check for overlapping
sample intervals, end of hole match between
'Lithology', 'Sample', 'Survey' files and other common
errors.
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
• Drill hole collars locations were surveyed by an
independent surveyor using industry standard
equipment. Three permanent survey marks in the area
provided survey control, allowing for repeatable and
accurate survey readings across the project area.

11

Criteria JORC Code Explanation Commentary
used in Mineral Resource
estimation.

Specification of the grid system
used.

Quality and adequacy of
topographic control.
• The datum used is GDA 94 and coordinates are
projected as MGA zone 54.
• A digital topographic surface was generated by VHM
Limited from data collected during a LIDAR survey
commissioned by VHM. The accuracy of the locations
is sufficient for this stage of exploration.
Data spacing
and
distribution

Data spacing for reporting of
Exploration Results.

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.
• Holes were developed within representative panels
which were based on mine design and schedule from
the Ore Reserve. This was designed to enable
reconciliation of future mining and process outcomes
(against the bulk sample metallurgy results) Drill holes
are spaced on a grid of lines spaced at 200m in the N-
S direction and typically between 100 and 200m in the
E-W direction with some close-spaced drilling as close
as 50m along traverses.
• One primary sonic hole and up to 3 subsidiary sonic
holes were completed at each collar coordinate, in
Area 1. The collar spacing is sufficient to provide a
high degree of confidence in geological model and
grade continuity and these metallurgical outcomes.
• Metallurgical drill holes were compiled under the
direction of the Manager Geology and Principal
metallurgist, to ensure representation of material types
for testing.
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.

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.
• The mineralisation at the Goschen Area 1 and Area 3
Extended project is a largely flat-lying (with some soft
sediment deformation across a basement fault)
sedimentary package which does not display a strong
orientation of mineralisation at the current sample
spacing.
Sample
security

The measures taken to ensure
sample security.
• Sonic samples were stored on site (at a dedicated
warehouse in Kerang).
• The samples were then dispatched to Mineral
Technologies, Gold Coast Queensland using Swan

12

Criteria JORC Code Explanation Commentary
Hill Freight agents, and delivered directly to the
Laboratories.
• Mineral Technologies metallurgical manager inspected
the packages and did not report tampering of the
samples
Audits or
reviews

The results of any audits or reviews
of sampling techniques and data.
• Internal reviews were undertaken during the geological
interpretation and throughout the metallurgical
sampling process by the Manager Geology, Principal
Metallurgist, Internal Peer reviewer, competent
person.

13

Section 2 Reporting of Exploration Results

(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 security of the tenure held at
the time of reporting along with any
known impediments to obtaining a
licence to operate in the area.
• The exploration work was completed on tenements
that are 100% owned by VHM Ltd in Victoria,
Australia.
• The drill samples for this metallurgical test program
were drilled and collected from retention licence
RL6806.
• The exploration license original date of grant was
10/10/2014 with an expiry date of 09/10/2019. A
Retention Licence to replace the exploration licence
was granted by Earth Resources Regulation, which is
the responsible statutory body and part of Victorian
Department of Jobs, Precincts and Regions, in
January 2020.
Exploration
done by other
parties
Acknowledgment and appraisal of
exploration by other parties.
• Historic exploration work was completed by previous
exploration companies including Austiex (1977 -
1978), CRA Exploration (1981 - 1987), Renison
Goldfields Consolidated (1980 - 1991), W J Holdings
(1998), RZM Group (1999), Basin Minerals (2001),
Providence Gold and Minerals (2004 - 2005), and
Iluka (2009).
• The Company has obtained the hardcopy reports and
maps in relation to this information as part of its
historical review in preparation for their current work
program.
• The historic data comprises surface sampling, limited
aircore drilling and mapping.
• The current metallurgical work program is based
solely on work conducted by VHM Ltd.
Geology Deposit type, geological setting, and
style of mineralisation.
• The heavy mineral sands at the Goschen Project are
a fine-grained deposit hosted within the offshore
depositional paleo-environment of the Loxton Parilla
Sands. The Loxton-Parilla Sand is common within the
Murray Basin and hosts all known mineral sand
deposits in the Basin. Alluvial sediments of the
Shepparton Formation have been deposited over the
Loxton-Parilla Sand and the Bookpurnong Formation
consisting of shallow marine clays and marls is
positioned below within the lithological sequence.
Drill hole
Information
A summary of all information
material to the understanding of the
exploration results including a
tabulation of the following
• Hole collars were surveyed by an independent
surveyor using industry standard equipment.
• Holes were drilled vertically.

14

Criteria JORC Code Explanation Commentary
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 and
interception depth
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.
• Drill hole depth cross verified with drilling reports and
geologist log for each hole.
• The field and laboratory data were exported into the
VHM's AcQuire database.
Data
aggregation
methods
In reporting Exploration Results,
weighting averaging techniques,
maximum and/or minimum grade
truncations (e.g., cutting of high
grades) and cut-off grades are
usually Material and should be
stated.
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.
• No data aggregation methods were utilised, no top
cuts were employed, and all cut-off grades have been
reported in the Prospectus.
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
• The nature of the mineralisation is horizontal, thus
vertical sonic and diamond holes represent the true
thicknesses of the mineralisation that inform the
metallurgical bulk sample.

15

Criteria JORC Code Explanation Commentary
effect (e.g. ‘down hole length, true
width not known’).
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.
• Plan view and typical cross sections provided in
Annexure F of the Prospectus.
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.
• Metallurgical results are reported by ANSTO and the
Company’s Principal Metallurgist responsible for rare
earth mineral metallurgical testwork.
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.
• During a bulk REMC trial material originating from
Area 1 was shipped to Mineral Technologies and
processed through FPP, WCP and rare earth
flotation circuits as a proxy for the Goschen process
flowsheet. The resulting REMC was collected and
stored for further processing at ANSTO during the
planned pilot scale trial.
• Metallurgical samples were provided to the ANSTO
for preliminary leach extraction assessment using
samples and conditions as detailed within the body
of the report.
• It must be noted that the extraction numbers reported
are indicative only and do not account for further
losses or inefficiencies that may or may not occur
due to further downstream processing to marketable
product(s).
Further work The nature and scale of planned
further work (e.g. 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.
• Additional metallurgical testwork is in progress as part
of the 2022 bulk sample program. Results inform
metallurgical and engineering programs for the
development of the Goschen Project.

16