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.

CONICO LTD Capital/Financing Update 2019

Feb 14, 2019

64678_rns_2019-02-14_003f3fee-4802-488e-ba9e-956af8700c78.pdf

Capital/Financing Update

Open in viewer

Opens in your device viewer

AUSTRALIAN SECURITIES EXCHANGE ANNOUNCEMENT

15[th] February 2019

==> picture [237 x 9] intentionally omitted <==

==> picture [237 x 8] intentionally omitted <==

==> picture [237 x 9] intentionally omitted <==

==> picture [237 x 9] intentionally omitted <==

==> picture [237 x 9] intentionally omitted <==

METAL EXTRACTION SURGE IN MT THIRSTY TESTWORK

The Mt Thirsty Project is a 50:50 Joint Venture with partner Barra Resources Ltd.

HIGHLIGHTS

  • Significant improvements in metal extractions on the master composite returned from leach optimisation test work compared to those reported in the Scoping Study

  • Cobalt leach extractions improved to 85% (typical) and as high as 88%

  • Nickel leach extractions improved to 32% (typical) and as high as 37%

  • Commensurately higher project revenues expected to be available for minimal additional reagents and costs

  • Cobalt and nickel extractions were achieved on whole ore and therefore do not have to allow for additional losses from beneficiation

  • The extractions were achieved using modest quantities of SO2 for leaching without requiring the addition of supplemental acid

  • Neutralisation tests show that iron and aluminium can be effectively precipitated after leaching prior to payable metals

  • Engineering enable capital estimation to a PFS level of accuracy scheduled to commence subject to JV funding

The Mt Thirsty Joint Venture’s PFS Manager, Barra Resources Limited Managing Director and CEO Sean Gregory said “These high-quality technical results are expected to significantly improve the economics of the Mt Thirsty project. They will go some way to mitigate the present temporary dip in cobalt spot pricing. The long-term outlook for cobalt remains strong as an essential and scarce ingredient for batteries to fuel electric vehicles. Mt Thirsty is reaffirmed as an advanced high grade and low capex source of cobalt and nickel.”

Level 15, 197 St George’s Terrace, Perth, Western Australia 6000 Telephone: (08) 9282 5889 Facsimile: (08) 9282 5866 Website: www.conico.com.au

ASX Announcement 15[th] February 2019

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 4] intentionally omitted <==

Introduction

The Mt Thirsty Cobalt Nickel Project is located 16km northwest of Norseman, Western Australia (Figure 1). The project is jointly owned by Barra Resources Limited and Conico Limited, together the Mt Thirsty Joint Venture (MTJV).

The Project contains the Mt Thirsty Cobalt-Nickel Oxide Deposit that has the potential to emerge as a significant cobalt producer.

The MTJV is progressing a Pre-Feasibility Study (PFS) on the project utilising industry leading consultants led by Amec Foster Wheeler Australia Pty Ltd, trading as Wood.

Figure 1: Mt Thirsty Project location.

Sample Collection

The test work reported here has been completed on samples made up from Reverse Circulation (RC) drill samples from six holes collected in November 2016 (Table 1, refer ASX Quarterly Report for December Quarter 2016). The PFS master composite was made up of a blend of approximately half upper-saprolite domain (upper) and half lower-saprolite domain (lower) at grades representative of the most important early years of the mine plan. These are the same drill holes blended ostensibly at the same ratios as those used in the master composite of the Scoping Study, making these reported results directly comparable.

Table 1: Drill holes used in the sample composites. All holes are vertical (grid AGD84 Zone 51).

Hole ID Date Drilled Easting Northing RL (m) Depth
(m)
Composite
Intervals (m)
MTRC036 20/11/2016 372162 6447455 378 54 18-42
MTRC037 19/11/2016 372244 6447455 376 30 13-30
MTRC038 19/11/2016 372349 6447457 369 35 14-28
MTRC039 20/11/2016 371956 6447000 382 40 14-34
MTRC040 20/11/2016 372115 6447001 393 40 30-36
MTRC041 20/11/2016 372295 6446999 381 35 23-32

2

ASX Announcement 15[th] February 2019

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 4] intentionally omitted <==

Variability Test Work

Following on from the leaching test work on the individual upper and lower domain composites previously reported (refer ASX announcement 22/10/19), the next layer of variability was tested samples with a range of grades from each domain. The results in Table 2 illustrate that extraction can be correlated with feed grade in the range tested. This is consistent with the higher-grade samples having higher concentrations of the more easily leached asbolane mineral and the lower grade samples having more of the cobalt in the less easily leached goethite mineral. Note that these results are using the leaching parameters of the Scoping Study and are without the parameter optimisations achieved in Table 3.

Table 2: Variability leach results.

Test ID Sample Source Domain Co Feed
Grade (%)
Co Rec
(%)
Ni Rec (%) Co
Residue
Grade
HY6797 MTRC038 15-16m Upper Medium-Grade 0.16 61 31 0.067
HY6795 MTRC036 25-26m Upper Low-Grade 0.09 71 26 0.028
HY6800 MTRC041 24-25m Lower High-Grade 0.21 82 31 0.043
HY6796 MTRC036 36-37m Lower Medium-Grade 0.12 71 25 0.039
HY6934 MTRC038 25-26m Lower Low-Grade 0.09 53 22 0.047

QEMSCAN Analysis

QEMSCAN analysis was completed on the master composite sample. QEMSCAN is the quantitative evaluation of minerals using a fully automated scanning electron microscope. The technique is a very powerful tool to link the geological knowledge of the deposit to the metallurgical performance. It can be used to explain and predict observed results. The QEMSCAN results provide a wealth of information that has reaffirmed the reasons for the beneficiation performance previously reported (refer ASX announcement 22/10/18).

One specific observation from the QEMSCAN analysis that is relevant to the leaching optimisation is that 62% of the cobalt is present in manganese mineral (asbolane) which is readily leached with SO2 (Figure 2). The remainder of the cobalt and most of the nickel is in the harder to leach goethite mineral. Lower nickel extractions are explained by 44% of the nickel being in the chlorite mineral which is not leached by the methods studied. Two separate reactions will be required to target the asbolane and the goethite. The Scoping Study results align with successfully leaching the asbolane and only a small proportion of the goethite. The opportunity in the PFS and in the leaching optimisation test work reported below are to:

  • Leach the asbolane as rapidly and efficiently as possible; and

  • Target the secondary nickel and cobalt mineralisation in goethite with minimal iron dissolution.

3

ASX Announcement 15[th] February 2019

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 4] intentionally omitted <==

==> picture [95 x 244] intentionally omitted <==

==> picture [89 x 238] intentionally omitted <==

==> picture [192 x 87] intentionally omitted <==

Figure 2: QEMSCAN elemental deportment for Cobalt and Nickel.

Leaching Optimisation Test Work

An additional 22 leach optimisation tests have been completed to date at ALS laboratories in Balcatta, bringing the total for the PFS to 35 tests. The results are an improvement on the variability samples reported above on unoptimised conditions as evident by the lower residue grades shown in Table 3.

The leaches optimised parameters such as SO2 and other reagent addition rates, temperature, grind size, and residence times, with incremental improvements identified as the tests progressed.

Table 3: Significant leach optimisation test work results (>81%Co & >27%Ni).

Test ID Cobalt Extraction(%) Nickel Extraction(%) Cobalt Residue Grade (%)
HY6884 81 31 0.040
HY6947 83 28 0.032
HY6933 86 31 0.029
HY6976 84 32 0.032
HY6977 84 28 0.030
HY7035 88 36 0.025
HY7036 82 27 0.035
HY7067 85 32 0.031
HY7132 85 29 0.030
HY7142 86 35 0.028
HY7143 86 33 0.028
HY7154 84 29 0.032
HY7155 88 37 0.024
HY7200 88 35 0.023
HY7201 83 31 0.034
HY7233 87 33 0.027
HY7234 84 29 0.031
HY7285 85 32 0.031
HY7286 88 35 0.025

4

ASX Announcement 15[th] February 2019

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 4] intentionally omitted <==

Extractions of 84-89% for cobalt and 31-39% for nickel have been consistently achieved. These results are a significant improvement to those extractions achieved on a similar sample and used as a basis for the 2017 Scoping Study

Neutralisation Test Work

The secondary leach reactions that target the goethite extract iron and aluminium in addition to manganese, cobalt, and nickel. The iron and aluminium need to be removed from the circuit prior to cobalt and nickel recovery which can lead to co-precipitation losses during neutralisation. Initial neutralisation test work has however indicated that with careful control of pH and additional reagent dosing, the iron and most of the aluminium can be precipitated ahead of the payable metals without co-precipitation (Figure 3).

Figure 3: Neutralisation test HY7252 showing successful precipitation of iron an aluminium ahead of payable metal precipitation at pH 2.4-2.6.

Cobalt Market Outlook

The price for cobalt metal has corrected over the last 12 months from a high of US$90,000/t in March to US$33,000/t today. This has been due to short term supply exceeding demand as evident by LME warehouse levels which are now at their highest level in 7 years. The supply growth has been led by producers from the Democratic Republic of Congo, increasing their dominance of the market to above 70% and further exacerbating future supply shock risk.

Speculators had been purchasing and stockpiling physical cobalt in expectation of the electric vehicle (EV) revolution. EV sales are growing exponentially from a low base, particularly in China, however the

5

ASX Announcement 15[th] February 2019

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 4] intentionally omitted <==

mass adoption of EVs is still ahead of us. When this inevitably occurs, supply growth will be unable to keep pace with demand. Hence the rampant speculation that saw the cobalt price unsustainably rise this time last year.

Substitution away from Cobalt through the adoption of 811 cathode chemistry (8-parts nickel, 1-part manganese, 1-part cobalt) to displace 622 cathodes has proved more difficult than major battery manufacturers forecast. Even if this thrifting away from cobalt can be safely implemented, the demand growth is still forecast to significantly outstrip supply. The challenges of 811 cathode chemistry highlight the difficultly of technological change disrupting the need for cobalt in batteries within any reasonable investment time frame.

The recent correction of the cobalt price has been sharper than forecasts issued by all major banks as reported by Consensus Economics. Longer term, the fundamentals of the cobalt market remain exceptional with very few high-quality projects such as Mt Thirsty being expected to be available to meet the demand driven by EVs.

Next Steps

Bulk leach test work will now commence. The completion of the bulk leaches will confirm the results of the optimisation and neutralisation tests reported above and form the basis for the PFS design. The bulk leach will also manufacture samples for thickening and tailings test work.

The leaches completed to-date have been conducted on a master composite consisting of a 50/50 blend of upper and lower domains from previous RC drilling chosen to be representative of the early years of mining. The upper domain is known to have superior leach performance to the lower domain from leaches conducted during the beneficiation vs whole ore leach study (refer ASX announcement 22[nd] October 2018). The optimised leach extraction performance from the master composite will need to be deconvoluted into upper and lower performance for mine planning, initially by calculation, and then by tests on each domain at the optimised leaching conditions.

The results of this next step will also allow metallurgical regressions to be constructed to be combined with the imminent JORC 2012 upgraded Mineral Resource estimation to be used for mine planning and optimisation which is expected to unlock further significant value for the project.

Engineering of the processing plant, and capital and operating cost estimating to a PFS level of accuracy at optimised conditions is now ready to commence subject to funding approval by the JV, anticipated to be released in the current quarter.

==> picture [102 x 51] intentionally omitted <==

Guy T Le Page Director

6

ASX Announcement 15[th] February 2019

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 4] intentionally omitted <==

Disclaimer

The interpretations and conclusions reached in this report are based on current geological and metallurgical theory and the best evidence available to the authors at the time of writing. It is the nature of all scientific conclusions that they are founded on an assessment of probabilities and, however high these probabilities might be, they make no claim for complete certainty. Any economic decisions that might be taken based on interpretations or conclusions contained in this report will therefore carry an element of risk.

This report contains forward-looking statements that involve a number of risks and uncertainties. These forward-looking statements are expressed in good faith and believed to have a reasonable basis. These statements reflect current expectations, intentions or strategies regarding the future and assumptions based on currently available information. Should one or more of the risks or uncertainties materialise, or should underlying assumptions prove incorrect, actual results may vary from the expectations, intentions and strategies described in this report. No obligation is assumed to update forward-looking statements if these beliefs, opinions and estimates should change or to reflect other future developments.

Competent Persons Statements

The information in this report which relates to drilling and collection of samples for Exploration Results for the Mt Thirsty Project is based on and fairly represents information compiled by Mr Michael J Glasson who is a Member of the Australian Institute of Geoscientists contracted to Conico Limited. Mr Glasson holds shares in Conico Ltd.

The information in this report which relates to the metallurgical test work for Exploration Results for the Mt Thirsty Project is based on and fairly represents information compiled by Mr Karel Osten who is a Member of the Australian Institute of Mining and Metallurgy and a full-time employee of Wood.

Messers Glasson and Osten have sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which they are undertaking to qualify as Competent Persons as defined in the 2012 Edition of the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves” (the JORC Code). They consent to the inclusion in the report of the matters based on their information in the form and context in which it appears.

7

ASX Announcement 15[th] February 2019

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 4] intentionally omitted <==

JORC Code, 2012 Edition: Table 1 report

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 (eg 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 (eg ‘reverse circulation drilling was
used to obtain 1 m samples from which 3
kg was pulverised to produce a 30 g
charge for fire 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 (eg
submarine
nodules)
may
warrant
disclosure of detailed information.
• 1m samples were split and collected at
the drill rig.
• The remainder of the drill cuttings were
immediately bagged and sealed in air
tight bags to minimise drying and
agglomeration of the clays. These
samples
were
later
used
for
compositing and metallurgical test
work.
• The split samples were then dried and
pulverised and a 40gm sub sample
analysed for Co, Ni, Mn, Zn, Mg, Al & Fe
using a four acid digest with an ICP OES
finish.
Drilling
techniques
• Drill type (eg core, reverse circulation,
open-hole hammer, rotary air blast,
auger, Bangka, sonic, etc) and details (eg
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).
• RC drilling was completed with a
165mm face sampling hammer.
• All drilling was above the water table
and there was no water injection used.
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
recovery
was
generally
excellent in dry powdery clay which
hosts the upper portion of the
mineralisation. Any intervals with
obvious poorer sample recovery were
recorded in the logs. These were mostly
in greenish puggy clay sections beneath
the oxidised zone in the lower portion
of the deposit.

8

ASX Announcement 15[th] February 2019

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 4] intentionally omitted <==

Criteria JORC Code explanation Commentary
sample bias may have occurred due to
preferential loss/gain of fine/coarse
material.
• The cyclone was cleaned between each
six metre rod and every metre for wet
samples; riffle splitters were cleaned as
required.
There
is
no
obvious
relationship between grade and sample
recovery. Most of the material drilled is
strongly weathered, soft and fine
grained. No significant sample bias is
expected to have occurred due to
preferential loss of fine/coarse material.
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.
• Whether
logging
is
qualitative
or
quantitative in nature. Core (or costean,
channel, etc) photography.
• The total length and percentage of the
relevant intersections logged_._
• Logging is conducted in detail at the
drill site by the site geologist, who
routinely records weathering, lithology,
alteration, mineralisation, or any other
relevant features. It is considered to be
logged at a level of detail to support
appropriate
Mineral
Resource
estimation and mining studies.
• All holes were logged in the field by
MTJV geologists who have a long
association and familiarity with the
deposit.
• Logging is qualitative in nature.
• The entire length of each hole was
logged in 1m intervals.
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.
• All RC drill chips were split with a rotary
splitter. The remaining sample was
bagged and placed on the ground.
• Sample preparation followed industry
standard practice of drying, coarse
crushing to -6mm, before pulverising to
90% passing 75 micron.
• To meet QAQC requirements duplicates
were placed at irregular intervals in the
sample stream, usually one or two
duplicates per drill hole (approximately
every 20-40m). For the RC drilling
certified blanks (OREAS 24P) were
placed in the sample stream at the rate
of 1 in 100, at each hundredth sample.
Additionally, two different certified
standards were used in the sample
stream (OREAS 72A and OREAS 162) at
the rate of 2 standards per 100
samples. These were placed at the 25th
and 75th number of every hundred
samples.

9

ASX Announcement 15[th] February 2019

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 4] intentionally omitted <==

Criteria JORC Code explanation Commentary
• The Co values in the blank samples
were higher than the provided values
however they are below 80 ppm;
comparatively low compared to the
estimated
resource
values
and
therefore within acceptable ranges for
blank samples. Overall there were only
a small number of outliers in the
duplicates collected and therefore the
duplicate results are also considered
satisfactory.
• Material being sampled is generally fine
grained, and a 2-3kg sample from each
metre is considered adequate.
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 factors
applied and their derivation, etc.
• Nature of quality control procedures
adopted (eg standards, blanks, duplicates,
external laboratory checks) and whether
acceptable levels of accuracy (ie lack of
bias) and precision have been established.
• Samples were crushed and pulverised,
and analysed for Co, Ni, Mn, Zn, Mg, Al
& Fe using a four acid digest with an ICP
OES finish (method AD02-ICP) by
Bureau Veritas’ Perth laboratory. These
procedures are considered appropriate
for
the
elements
and
style
of
mineralisation. Analysis is considered
total.
• No geophysical tools have been used.
• The
internal
laboratory
QAQC
procedures included analysing its own
suite of internal standards and blanks
within every sample batch and also
adding sample duplicates.
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.
• Significant intersections are determined
by company personnel and checked
internally.
• A limited number of twinned RC holes
and AC holes twinned by Sonic Core
(SC) holes have been drilled. 5 of the 6
RC holes and the 3 AC holes are twins
previous AC holes. Analysis of paired
data representing AC and SC samples
with proximity of approximately 5 m or
less has given at least preliminary
indications that some AC samples are
yielding higher Co and Mn values than
corresponding samples derived from
SC. Population statistics however show
the reverse and AC statistics are slightly
lower grade on average than RC and SC.
• Individual
sample
numbers
are
generated and matched on site with

10

ASX Announcement 15[th] February 2019

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 4] intentionally omitted <==

Criteria JORC Code explanation Commentary
down hole depths. Sample numbers are
then used to match assays when
received
from
the
laboratory.
Verification of data is managed and
checked by company personnel with
extensive experience. All data is stored
electronically, with industry standard
systems and backups.
• Data is not subject to any adjustments.
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.
• Specification of the grid system used.
• Quality and adequacy of topographic
control.

Collar locations were determined
by hand held GPS and are accurate to
approximately +/- 5m.

The grid system used is AGD84;
AMG Zone 51 to match a previously
established grid. A DTM and 2.5m
spaced topographic contours have been
prepared from ortho-photomaps and
hole RLs are measured from these. This
topographic control is considered quite
adequate for the current purposes.
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.
• All holes were sampled and assayed in
1m intervals and no other compositing
has been applied during sample
collection
and
assay
laboratory
preparation.
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 is mostly contained
within a flat lying weathering blanket
and vertical holes achieve unbiased
sampling in most cases.
• The mineralisation is mostly contained
within a flat lying weathering blanket
and vertical holes achieve unbiased
sampling in most cases.
Sample
security
• The measures taken to ensure sample
security.
• Samples were either taken directly from
the drill site to the laboratory in
Kalgoorlie or delivered to a dedicated
cartage contractor in Norseman by
company employees and or contractors.
Audits or • The results of any audits or reviews of • No audits or reviews were carried out

11

ASX Announcement 15[th] February 2019

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 4] intentionally omitted <==

Criteria JORC Code explanation Commentary
reviews sampling techniques and data. for this metallurgical drilling as it is not
considered warranted at this stage.

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 results relate to the
Mt
Thirsty
Project,
located
approximately 16km north west of
Norseman, Western Australia. The
tenements are owned 50:50 (Mt
Thirsty Joint Venture, MTJV) by Conico
Ltd (through its subsidiary Meteore
Metals Pty Ltd) and Barra Resources
Ltd. The project includes Retention
Licence R63/4, Exploration Licences
E63/1267,
and
E63/1790
and
Prospecting Licence P63/2045. Mining
Lease applications have been lodged
over R63/4 and E63/1267 and a
General Purpose Lease application
over E63/1790 and P63/2045. The
exploration results referred to in this
announcement are located on R63/4.
• A NSR royalty is payable to a third
party on any production from R63/4.
The tenements lie within the Ngadju
native title claim (WC99/002), and
agreements between the claimants
and the tenement holders are
designed
to
protect
Aboriginal
heritage sites and facilitate access.
There are no historical or wilderness
sites or national parks or known
environmental settings that affect the
Mt Thirsty Project although the
project area is located within the
Great Western Woodlands.
• Meteore/Barra have secured tenure
over the project area and there are no
known impediments to obtaining a
licence to operate in the area.
Exploration done
by other parties
• Acknowledgment and appraisal of
exploration by other parties.
• The Mt Thirsty area was explored for
nickel sulphide mineralisation in the
late sixties and early seventies by
Anaconda, Union Miniere, CRA,
WMC/CNGC and others. Although no
significant sulphide discoveries were

12

ASX Announcement 15[th] February 2019

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 4] intentionally omitted <==

Criteria JORC Code explanation Commentary
made during that time, limonitic
nickel/cobalt
mineralisation
was
encountered but not followed up. In
the
1990’s
Resolute-Samantha
discovered
high
grade
cobalt
mineralisation in the oxidised profile
above an orthocumulate peridotite.
This oxide mineralisation is the
subject of this announcement.
Geology • Deposit type, geological setting and style
of mineralisation.
• The Mt Thirsty Cobalt deposit
mineralisation has developed as a
result of weathering of ultramafic
(peridotite) rocks located at the
southern end of the Archaean
Norseman - Wiluna greenstone belt.
Most of the Co and some of the Ni
mineralisation is associated with
manganese oxides which have formed
in the weathering profile.
Drill hole
Information
• 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:
o
easting and northing of the drill
hole collar
o
elevation or RL (Reduced Level –
elevation above sea level in metres)
of the drill hole collar
o
dip and azimuth of the hole
o
down hole length and interception
depth
o
hole length.
• If the exclusion of this information is
justified
on
the
basis
that
the
information is not Material and this
exclusion does not detract from the
understanding of the report, the
Competent Person should clearly explain
why this is the case.
• See
table
in
main
body
of
announcement
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.
• Where aggregate intercepts incorporate
• Not applicable.
• No equivalent values are used.

13

ASX Announcement 15[th] February 2019

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 4] intentionally omitted <==

Criteria JORC Code explanation Commentary
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.
Relationship
between
mineralisation
widths and
intercept lengths
• These relationships are particularly
important
in
the
reporting
of
Exploration Results.
• If the geometry of the mineralisation
with respect to the drill hole angle is
known, its nature should be reported.
• If it is not known and only the down
hole lengths are reported, there should
be a clear statement to this effect (eg
‘down hole length, true width not
known’).
• As the mineralised envelope is
generally flat lying and nearly all holes
were drilled vertically; down hole
width is mostly considered to be true
width.
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.
• All diagrams contained in this
document are generated from spatial
data displayed in industry standard
mining and GIS packages.
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.
• Not applicable.
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.
• The leach composite sub-samples
were approximately 850g on a dry
solids basis mixed at 40% solids with
synthetic hypersaline water. SO2 was
the main reagent used and no acid
was added. Leaches were conducted
at temperatures ranging from 60 to 80
degrees C for 16 to30 hours.
• Recovery results are reported as
metal in residue vs feed.
• Leach extraction results are reported
prior
to
losses
expected
in
neutralisation and precipitation. For
the ScopingStudy,finalproduct

14

ASX Announcement 15[th] February 2019

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 5] intentionally omitted <==

==> picture [119 x 4] intentionally omitted <==

Criteria JORC Code explanation Commentary
recoveries of 73.0% for cobalt and
21.5% were achieved from leach
extractions of 79.5% and 25.6%
respectively. For the PFS, losses of less
than 4% are targeted.
Further work • The nature and scale of planned further
work (eg tests for lateral extensions or
depth extensions or large-scale step-out
drilling).
• Diagrams clearly highlighting the areas
of possible extensions, including the
main geological interpretations and
future drilling areas, provided this
information
is
not
commercially
sensitive.
• The Mt Thirsty deposit is presently the
subject of a Pre-Feasibility Study.
• Further test work will include bulk
leaches, thickening and solid-liquid
separation testsand tailings test work
as well as additional variability
leaches.
• Golders has been commissioned to
upgrade the Mineral Resource from
JORC 2004 to JORC 2012 to enable an
Ore Reserve to be declared at the
completion of a positive PFS.

15