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HAVILAH RESOURCES LIMITED Capital/Financing Update 2021

May 16, 2021

65038_rns_2021-05-16_0cd393b3-19d7-4f9a-ab66-0fa3f0fc5d10.pdf

Capital/Financing Update

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ASX MEDIA RELEASE

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[ 17 May 2021]

KALKAROO COPPER-GOLD PROJECT UPDATE

HIGHLIGHTS

  • Consistent Kalkaroo widths and grades of mineralisation in recent resource infill drillholes, including 46 metres @ 0.49% copper and 17 metres @ 2.24 g/t gold .

  • Six sterilisation drillholes beneath planned key infrastructure completed.

  • Preliminary financial modelling on West Kalkaroo indicates a robust gold project.

  • Discussions initiated with possible mining contractors and project financiers.

  • Awaiting feedback from the Department for Energy and Mining ( DEM ) on the Kalkaroo Program for Environment Protection and Rehabilitation ( PEPR ) document that was lodged over two months ago.

Havilah Resources Limited ( Havilah or the Company ) ( ASX : HAV ) is pleased to provide an update on progress of work at its large-scale Kalkaroo copper-gold-cobalt deposit ( Kalkaroo ) in northeastern South Australia, near Broken Hill. Havilah’s priority focus during recent months has been on advancing several key tasks that are required to commence the West Kalkaroo open pit gold mine, as described below.

Infill drilling

Several infill reverse circulation ( RC ) drillholes were completed along strike of the proposed West Kalkaroo open pit to improve confidence in the continuity of mineralisation (Figure 1). These results will be used in future mine planning studies.

Widespread copper and gold mineralisation was intersected in most drillholes, with grades and widths of mineralisation very typical of the Kalkaroo deposit, including:

KKRC606 : 17 metres of 2.24 g/t gold from 110-127 metres (native copper zone)

(Figure 2) 46 metres of 0.49% copper from 110-156 metres (native copper zone and chalcocite zone).

Extensive faulting and fracturing is likely enhancing the grade of gold mineralisation in this area.

Low-grade base of Tertiary gold mineralisation was also extended by shallow aircore drilling within or adjacent to the proposed West Kalkaroo open pit (Figure 1).

Six sterilisation holes have been completed in the vicinity of the planned locations of key infrastructure, including the processing plant, tailings storage facility and waste dump, to ensure that they will not be built too close to potentially economic mineralisation.

Progress of Kalkaroo PEPR (Program for Environment Protection and Rehabilitation)

The PEPR document, which is the final permitting approval required for commencement of mining, was submitted to the DEM during March 2021. Thusfar, Havilah has had no feedback other than in relation to the calculation methodology of the rehabilitation bond, which it is in the process of addressing.

Havilah Resources Limited ABN 39 077 435 520 ASX : HAV

Website : www.havilah-resources.com.au Tel : +61 (08) 7111 3627 Email : [email protected]

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Figure 1 Location of drillhole cross-section line A-B (Figure 2). Also shown is the planned West Kalkaroo gold open pit outline (blue) which is being advanced towards development (if feasible) during 2021, subject to receipt of required approvals and financing.

Mining contractors

Havilah has conducted Kalkaroo site visits with potential mining contractors with a view to agreeing the terms and scope of possible mining contracting arrangements.

Process flow sheet

The process flow sheet design is well advanced, with further refinement in equipment selection. The process plant has been designed to treat the soft oxidised and clayey ore material and would recover coarser gold and native copper (greater than 50 microns grain size) by gravity methods. The finer gold would be recovered via a conventional cyanide leach circuit (Figure 3).

A positive feature of the Kalkaroo deposit is that while there is a high proportion of sub-10 micron saprolite gold ore material, there is very little gold in this size fraction. This raises the possibility of rejection of a large mass of the very fine clayey material prior to leaching, thus effectively increasing the leaching circuit ore throughput.

The process flow sheet is presently being validated by laboratory tests, which thusfar have been supportive.

Financial model

Havilah has generated a preliminary financial model for the West Kalkaroo gold open pit based on detailed open pit designs and ore mining schedules developed by Havilah’s experienced senior mine planning engineer, Richard Buckley. This model is being integrated with the projected extensions of the initial gold open pit designs that will merge with the eventual large-scale copper sulphide mining operation (Figure 1). A financial model will be released in due course when more precise mining and plant construction costs have been obtained and the model has been reviewed.

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Havilah Resources Limited

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Given the preliminary indicated robust economics of the gold mining operation at current spot gold prices, it is Havilah’s present intention to seek maximum project debt financing to avoid dilution of its 100% Kalkaroo project equity (and currently free of external non-government royalty or streaming obligations) and also to minimise shareholder dilution via a large capital raising.

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Figure 2 Cross-section line A-B showing results for recent drillholes KKRC0606 and KKRC0605. These RC drillholes are on a new drill section line halfway in between earlier 100 metre spaced drill section lines that were used to define the Kalkaroo JORC Mineral Resources. The results for KKRC0606 and KKRC0605 are broadly consistent and confirmatory of the previous drilling results. The different zones of gold and copper-gold mineralisation intersected by the drillholes are identified.

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Havilah Resources Limited

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Kalkaroo technical presentation involving Havilah’s senior mine planning engineer, Richard Buckley

The technically inclined or the curious may be interested to learn how Havilah has applied state of the art Maptek mine planning software, including open pit optimisation, automated pit design, pit staging, ore scheduling and haulage to produce preliminary financial models for the Kalkaroo project. Registration for the Maptek-sponsored webinar is via this link.

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Figure 3 Scaled oblique view of the saprolite gold ore processing plant. The oxidised ore is extremely soft and requires minimal crushing. A scrubber disaggregates the clayey ore and cyclones classify the ore for gravity gold recovery (in Knelson concentrators) and cyanide leach recovery.

Havilah’s Technical Director, Dr Chris Giles, said:

“The Kalkaroo project has progressed considerably since the beginning of the year in accordance with our indicative timeline for West Kalkaroo project activities.

“Infill resource drilling continues to demonstrate good continuity of mineralisation at consistent copper and gold grades.

“We have engaged with several possible contractors and project financiers with the view to seeking suitable arrangements while waiting for PEPR document feedback and approval.

“Preliminary financial modelling for the West Kalkaroo gold open pit indicates robust returns for a modest capital outlay and should allow a substantial debt financing component.

“Our priority objective remains advancing the West Kalkaroo gold open pit towards development during 2021, subject to a final investment decision by the Havilah Board, obtaining financing and final South Australian government approvals,” he said.

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Havilah Resources Limited

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About the Kalkaroo copper-gold-cobalt deposit

Havilah’s 100% owned Kalkaroo copper-gold-cobalt deposit contains JORC Mineral Resources of 1.1 million tonnes of copper, 3.1 million ounces of gold and 23,200 tonnes of cobalt. It has an open pit JORC Ore Reserve of 100.1 million tonnes at a 0.89% CuEq of which 90% is in the Proved category (refer to JORC tables below taken from Havilah’s 2020 Annual Report in ASX announcement of 27 October 2020). As such, Kalkaroo is one of the largest undeveloped open pit copper-gold deposits in Australia on a CuEq Ore Reserve basis.

The spot copper price has had a remarkable rise of over 30% since December 2020. This has resulted in an upward adjustment to the long-term consensus copper price to USD3.50/lb (Source: Consensus Economics Inc.). The Kalkaroo project pre-feasibility study ( PFS ) results released almost 2 years ago showed an estimated pre-tax NPV7.5% of AUD564 million and IRR of 26% at USD2.89/lb copper, USD1,200/oz gold, AUD:USD0.75 (refer to ASX announcement 18 June 2019). At the time it was noted that the Kalkaroo project net present value ( NPV ) was highly sensitive to copper and gold metal prices. This is evident via sensitivity analysis in a metal price vs NPV7.5% value matrix reproduced in Table 1 below from the RPM Global Asia Limited PFS financial model, which shows a revised pre-tax NPV7.5% for Kalkaroo of AUD1.163 billion using current long-term price forecasts for copper and gold.

Low sovereign risk, advanced, large-scale open pit copper-gold development opportunities like Kalkaroo, with associated land ownership, are rare at a time when renewable energy and electric vehicles are adding to the demand for copper and with copper prices breaching USD10,000/tonne (USD4.53/lb). South Australia’s mining friendly government and enforcement of world’s best practice ESG (environmental, social and governance) regulations means the Kalkaroo project ticks all boxes as a potential future source of ethical copper (and potentially cobalt).

Table 1 Pre-tax NPV7.5% value matrix in AUD million for variable USD copper and gold prices

Gold price USD/oz and AUD/oz (at AUD:USD exchange rate of 0.75) Gold price USD/oz and AUD/oz (at AUD:USD exchange rate of 0.75) Gold price USD/oz and AUD/oz (at AUD:USD exchange rate of 0.75) Gold price USD/oz and AUD/oz (at AUD:USD exchange rate of 0.75) Gold price USD/oz and AUD/oz (at AUD:USD exchange rate of 0.75) Gold price USD/oz and AUD/oz (at AUD:USD exchange rate of 0.75) Gold price USD/oz and AUD/oz (at AUD:USD exchange rate of 0.75) Gold price USD/oz and AUD/oz (at AUD:USD exchange rate of 0.75)
Copper price USD/lb & AUD/lb USD $1,200 $1,300 $1,400 $1,500 $1,600 $1,700 $1,800 $1,900 $2,000 $2,100 $2,200
AUD $1,600 $1,733 $1,867 $2,000 $2,133 $2,267 $2,400 $2,533 $2,667 $2,800 $2,933
2.89 3.85 $564* $633 $701 $770 $839 $907 $976 $1,044 $1,113 $1,182 $1,250
3.10 4.13 $698 $766 $835 $903 $972 $1,040 $1,109 $1,178 $1,246 $1,315 $1,383
3.50 4.67 $957 $1,026 $1,094 $1,163* $1,232 $1,300 $1,369 $1,437 $1,506 $1,575 $1,643
3.90 5.20 $1,217 $1,286 $1,354 $1,423 $1,491 $1,560 $1,629 $1,697 $1,766 $1,834 $1,903
4.30 5.73 $1,476 $1,545 $1,614 $1,683 $1,751 $1,820 $1,888 $1,957 $2,026 $2,094 $2,163
4.70 6.27 $1,737 $1,805 $1,874 $1,943 $2,011 $2,080 $2,148* $2,217 $2,285 $2,354 $2,423
5.10 6.80 $1,996 $2,065 $2,134 $2,202 $2,271 $2,340 $2,408 $2,477 $2,545 $2,614 $2,682
5.50 7.33 $2,256 $2,325 $2,394 $2,462 $2,530 $2,599 $2,668 $2,737 $2,805 $2,874 $2,942
5.90 7.87 $2,516 $2,585 $2,654 $2,722 $2,790 $2,859 $2,928 $2,997 $3,065 $3,134 $3,202
  • Pre-tax NPV7.5% from Kalkaroo project PFS (green) compared with that at current long-term forecast (orange) and recent spot gold and copper prices (yellow), as calculated by the PFS financial model. NPV (Net Present Value) is a measure of discounted cash flow valuation in this case using a discount rate of 7.5%. Note the value matrix uses an AUD:USD exchange rate of 0.75.

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Havilah Resources Limited

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It is noted that the yellow highlighted spot gold and copper price pre-tax NPV7.5% (AUD2.148 billion) could still be considered conservative for Kalkaroo on several grounds:

  1. No account has been taken of improved gold recoveries in the oxidised ore types, namely saprolite gold and native copper from around 50% in the PFS to >90% based on Havilah’s updated metallurgical test work (refer to ASX announcement of 9 May 2019).

  2. Open pit optimisations have not been re-run for higher long-term forecast gold and copper prices. On the basis that lower grades of ore can be profitably treated if metal prices are higher, it is reasonable to assume (based on similar cost inputs) that re-optimisation would result in a larger open pit and hence improved mining economics and a longer mine life. For the above table the published PFS open pit optimisation and RPM financial model have been used.

  3. The potential revenue contribution from other by-product commodities such as cobalt, rare earth elements and molybdenum has not been incorporated due to as yet uncertain recovery pathways.

Kalkaroo JORC Ore Reserves as at 31 July 2020 from Havilah 2020 Annual Report

Project Classification
Tonnes
(Mt)
Copper
%
Gold
g/t
Copper tonnes
(Kt)
Gold ounces
(Koz)
Classification
Tonnes
(Mt)
Copper
%
Gold
g/t
Copper tonnes
(Kt)
Gold ounces
(Koz)
Classification
Tonnes
(Mt)
Copper
%
Gold
g/t
Copper tonnes
(Kt)
Gold ounces
(Koz)
Classification
Tonnes
(Mt)
Copper
%
Gold
g/t
Copper tonnes
(Kt)
Gold ounces
(Koz)
Kalkaroo1 Proved
90.2
0.48
0.44
430
1,282
Probable
9.9
0.45
0.39
44
125
Total
100.1
0.47
0.44
474
1,407
Kalkaroo JORC Mineral Resources as at 31 July 2020 from Havilah 2020 Annual Report
Project Classification
Resource
Category
Tonnes
Copper
%
Cobalt
Gold
Copper
Cobalt
tonnes
Gold
ounces
%
g/t
tonnes
Kalkaroo2 Measured
Oxide Gold Cap
Indicated
Oxide Gold Cap
Inferred
Oxide Gold Cap
12,000,000
6,970,000
2,710,000
0.82
0.62
0.68
316,400
138,900
59,200
Total
Oxide Gold Cap
21,680,000 0.74 514,500
Measured
Sulphide
Copper-Gold
Indicated
Sulphide
Copper-Gold
Inferred
Sulphide
Copper-Gold
85,600,000
0.57
27,900,000
0.49
110,300,000
0.43
0.42
487,900
0.36
136,700
0.32
474,300
1,155,900
322,900
1,134,800
Total
Sulphide
Copper-Gold
223,800,000
0.49
0.36
1,096,600
2,590,300
Total Kalkaroo 245,480,000 1,096,600 3,104,800
Inferred
Cobalt Sulphide3
193,000,000 0.012 23,200

Numbers in above tables are rounded.

Footnotes to 2020 JORC Ore Reserve and Mineral Resource Tables

1 Details released to the ASX: 18 June 2018 (Kalkaroo)

2 Details released to the ASX: 30 January 2018 and 7 March 2018 (Kalkaroo)

  • 3 Note that the Kalkaroo cobalt Inferred Resource is not added to the total tonnage

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Havilah Resources Limited

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This release has been authorised on behalf of the Havilah Resources Limited Board by Mr Simon Gray.

For further information visit www.havilah-resources.com.au

Contact: Dr Chris Giles, Technical Director, on (08) 7111 3627 or email [email protected] Registered Office: 107 Rundle Street, Kent Town, South Australia 5067

Cautionary Statement

This announcement contains certain statements which may constitute ‘forward-looking statements’. Such statements are only predictions and are subject to inherent risks and uncertainties which could cause actual values, performance or achievements to differ materially from those expressed, implied, or projected in any forwardlooking statements. Investors are cautioned that forward-looking statements are not guarantees of future performance and investors are cautioned not to put undue reliance on forward-looking statements due to the inherent uncertainty therein. Given the ongoing uncertainty relating to the duration and extent of the global COVID19 pandemic, and the impact it may have on the demand and price for commodities (including copper and gold), on our suppliers and workforce, and on global financial markets, the Company continues to face uncertainties that may impact its operating and financing activities.

Competent Person’s Statements

The information in this announcement that relates to Exploration Results, JORC Mineral Resources and Ore Reserves is based on data and information compiled by geologist Dr Chris Giles, a Competent Person who is a member of The Australian Institute of Geoscientists. Dr Giles is Technical Director of the Company, a full-time employee and is a substantial shareholder. Dr Giles has sufficient experience, which is relevant to the style of mineralisation and type of deposit under consideration and to the activities being undertaken to qualify as a Competent Person as defined in the 2012 Edition of ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’ . Dr Giles consents to the inclusion in the announcement of the matters based on his information in the form and context in which it appears.

Except where explicitly stated, this announcement contains references to prior exploration results all of which have been cross-referenced to previous ASX announcements made by Havilah. The Company confirms that it is not aware of any new information or data that materially affects the information included in the relevant ASX announcements.

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Havilah Resources Limited

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Appendix 1

Sections 1 and 2 below provide a description of the sampling and assaying techniques in accordance with Table 1 of The Australasian Code for Reporting of Exploration Results.

Details for new drillhole cited in the text

Hole Number Easting m Northing m RL m Grid
azimuth
Dip
degrees
EOH depth
metres
KKRC0605 454951 6489246 118 101 -65 168
KKRC0606 454916 6489253 119 101 -65 180
Datum: AGD66 Zone 54

Section 1 Sampling Techniques and Data

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.

Sample data was derived from Havilah
reverse
circulation
(RC)
drillholes
as
documented in the table above.

RC assay samples averaging 2-3kg were riffle
split at 1 metre intervals. A very small number
of samples were too moist to go through the
splitter and were collected directly from the
cyclone in large plastic bags and grab
sampled from them using a scoop.

All RC drill samples were collected into pre-
numbered calico bags and packed into
polyweave bags by Havilah staff for shipment
to the assay lab in Adelaide.
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).

All RC holes were drilled with a 121mm face
sampling bit. All samples were collected via
riffle splitting directly from the cyclone. A very
small number of samples were too moist to
go through the splitter and were collected
directly from the cyclone in large plastic bags
and grab sampled from them using a scoop.
Drill sample
recovery

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

The sample yield and wetness of the RC
samples was routinely recorded in drill logs.
Veryfew samples were too wet to split.

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Havilah Resources Limited

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Criteria JORC Code explanation Commentary

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.

The site geologist and Competent Person
consider that overall the results are acceptable
for interpretation purposes.

No evidence of sample bias due to preferential
concentration of fine or coarse material was
observed. If anything, it is possible that some
wet samples may have under-called the native
copper assays due to loss of the heavier
sample fractions.

Sample
recoveries
were
continuously
monitored by the geologist on site and
adjustments to drilling methodology were
made in an effort to optimise sample recovery
andqualitywhere necessary.
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.

All
RC
samples
were
logged
by
an
experienced geologist directly into a digital
logging system with data uploaded directly
into an Excel spreadsheet and transferred to
a laptop computer.

All RC chip sample trays and some back-up
samples are stored on site at Kalkaroo.

Logging is semi-quantitative and 100% of
reported intersections have been logged.

Logging is of a sufficiently high standard to
support
any
subsequent
interpretations,
resource
estimations
and
mining
and
metallurgical studies.
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.

RC drill chips were received directly from the
drilling rig via a cyclone and were riffle split
on 1 metre intervals to obtain 2-3 kg samples.

Sampling size is considered to be appropriate
for the style of mineralisation observed. Assay
repeatability for gold and other metals has
not proven to be an issue in the past and is
checked with regular duplicates.

All
Havilah
samples
were
collected
in
numbered calico bags that were sent to ALS
assay lab in Adelaide.

At ALS assay lab the samples are crushed in a
jaw crusher to a nominal 6mm (method CRU-
21) from which a 3kg split is obtained using a
riffle splitter. The split is pulverized in an LM5
to 85% passing 75 microns (method PUL-23).
These pulps are stored in paper bags.

All samples were analysed for gold by 50g fire
assay, with AAS finish using ALS method Au-
AA26 and a range of other metals by ALS
method ME-ICP61.

All sample pulps are retained by Havilah so
that check or other elements may be assayed
usingthesepulps in the future.

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Havilah Resources Limited

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Criteria JORC Code explanation Commentary
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.

Fire assay method Au-AA26 is a total gold
analysis.

Assay data accuracy and precision was
continuously checked through submission of
field and laboratory standards, blanks and
repeats which were inserted at a nominal rate
of approximately 1 per 25 drill samples.

Assay data for laboratory standards and
repeats
for
Kalkaroo
were
previously
statistically analysed and no material issues
were noted.
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.

Checking of the new Au and Cu assays against
Au and Cu assays from adjacent earlier
drillholes indicated good overall correlation.

Rigorous internal QC procedures are followed
to check all assay results.

All data entry is under control of the
responsible geologist, who is responsible for
data management, storage and security.
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.

The holes were surveyed using an electronic
downhole camera in a stainless steel rod and
inner tube.

Present drillhole collar coordinates were
surveyed
in
UTM
coordinates
using
a
differential GPS system with an x:y:z accuracy
of 20cm:20cm:40cm and are quoted in AGD66
Zone 54 datum.
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.

The
RC
drillholes
were
positioned
at
appropriate spacings to follow up and evaluate
mineralisation in a fault intersection zone.

Sample compositing was not used.
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 drillhole azimuth and dip was chosen to
intersect the interpreted mineralised zones as
nearly as possible to right angles and at the
desired positions to maximise the value of the
drilling data.

At this stage, no material sampling bias is
known to have been introduced by the drilling
direction.
Sample
security

The measures taken to ensure sample security.

RC chip samples are directly collected from
the riffle splitter in numbered calico bags.

Several calico bags areplaced in each

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Havilah Resources Limited

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Criteria JORC Code explanation Commentary
polyweave bag which are then sealed with
cable ties. The samples are transported to the
assay lab by Havilah personnel at the end of
each field stint.

There is minimal opportunity for systematic
tampering with the samples as they are not
out of the control of Havilah personnel until
they are delivered to the assay lab.

This is considered to be a secure and
reasonable
procedure
and
no
known
instances
of
tampering
with
samples
occurred duringthe drilling programs.
Audits or
reviews

The results of any audits or reviews of sampling
techniques and data.

Ongoing
internal
auditing
of
sampling
techniques and assay data has not revealed
any material issues.

Robert Dennis who was formerly employed
by consulting firm RPM Global Asia Limited
(‘RPM’) visited Kalkaroo during November
2016 and found field procedures to be of
acceptable industry standard.

Wanbao
Mining
and
RPM
completed
independent re-sampling and assaying for
Kalkaroo and found results to be reliable.

Section 2 Reporting of Exploration Results

Criteria JORC Code explanation Commentary
Mineral
tenement and
land tenure
status

Type, reference name/number, location and
ownership including 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 license to operate in the area.

Security of tenure is via current mining leases
over Kalkaroo, owned 100% by Havilah.

Exploration
drilling
is
currently
being
undertaken on Kalkaroo Mining Lease ML
6498.

A Native Title Mining Agreement is in place for
Kalkaroo. The agreement was executed
between
Havilah
and
the
Ngadjuri
Adnyamathanha
Wilyakali
Native
Title
Aboriginal Corporation.

Havilah owns the Kalkaroo Station pastoral
lease on which the drillingis beingconducted.
Exploration
done by other
parties

Acknowledgment and appraisal of exploration by
other parties.

Kalkaroo was explored by a number of major
mining groups in the past including Placer
Pacific Limited, Newcrest Mining Limited and
MIM Exploration Pty Ltd, who completed
more than 45,000m of drilling in the region.

All previous exploration data has been
integrated into Havilah’s databases.
Geology
Deposit type, geological setting and style of
mineralisation.

In
general
the
mineralisation
style
is
stratabound replacement and vein style
copper-gold mineralisation within Willyama
Supergroup rocks of the Curnamona Craton.

At Kalkaroo, the stratabound mineralisation is
uniformly distributed along more than 3 km
of strike that follows an arc around the 35

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Criteria JORC Code explanation Commentary
degree dipping northern nose of the Kalkaroo
south dome. It is hosted by an 80m-120m
thick mineralised horizon that is sandwiched
between psammitic footwall rocks and a thick
pelitic hangingwall sequence.

In part, the mineralisation is associated with
near-vertical, mineralised quartz vein breccia
fracture/fault fillings, which probably formed
channel ways for the mineralising fluids.
Interference
folding
resulted
in
dome
structures which probably acted as structural
traps for the rising mineralising fluids carried
by these vertical structures.

The mineralising events were associated with
iron-rich and sodium-rich alteration fronts,
which are manifest as widespread fine-
grained
magnetite
in
the
lower
sandy
formations and as pervasive albite alteration,
overprinted by later potassic veining and
alteration.

Erosion in the Mesozoic and Tertiary period
exposed the region to prolonged and deep
weathering.
Consequently,
the
original
sulphide
mineralisation
shows
typical
supergene enrichment features in its upper
part, caused by oxidation of the primary
sulphides in the weathering zone, forming a
soft clay rich rock called saprolite. This is
manifest in a sub-horizontal stratification of
the ore minerals from top to bottom:
1. Supergene free gold in saprolite, with
generally minor copper, recoverable by
gravity and cyanide leaching methods.
2. Native copper and gold in saprolite,
largely recoverable by gravity methods.
3. Chalcocite dominant with gold,
recoverable by conventional flotation.
4. Chalcopyrite dominant with gold and
locally rich molybdenum, recoverable by
conventional flotation.
Drill hole
information
A summary of all information material to the
under-standing 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

This
information
is
provided
in
the
accompanying
table
for
the
relevant
drillholes.

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Criteria JORC Code explanation Commentary
o
hole length
If the exclusion of this information is justified on
the basis that the information is not Material and
this
exclusion
does
not
detract
from
the
understanding of the report, the Competent Person
should clearly explain why this is the case.
Data
aggregation
methods
In reporting Exploration Results, weighting
averaging techniques, 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.

Not applicable as not reporting mineral
resources.
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 (e.g. ‘down hole length, true width not known’).

Downhole lengths are reported. Drillholes are
typically oriented with the objective of
intersecting
mineralisation
as
near
as
possible to right angles, and hence downhole
intersections in general are as near as
possible to true width.

For
the
purposes
of
the
geological
interpretations and resource calculations the
true widths are always used.
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.

Not applicable as not reporting a mineral
discovery.
Balanced
Reporting

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.
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 as not reporting mineral
resources.
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.

Relevant
geological
observations
are
reported.

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Criteria JORC Code explanation Commentary
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 drilling may be carried out in the
future to explore strike and depth extensions
and for resource delineation.

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Havilah Resources Limited