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EMPIRE RESOURCES LIMITED Capital/Financing Update 2016

Feb 14, 2016

64875_rns_2016-02-14_662f8073-dab0-4a0b-af07-35c3f4aa58e6.pdf

Capital/Financing Update

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ACN 092 471 513

ASX Release

15 February 2016

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HIGH GRADE RESERVE ANNOUNCED FOR EMPIRE’S PENDING NEW W.A. GOLD MINE

146,000 tonnes @ 4.62g/t Au for 21,700 contained ounces at Penny’s Find near Kalgoorlie

  • Open-pit mining planned to commence from mid-year

  • Scoping study underway on underground extension

A probable ore reserve of 21,700 ounces of gold at robust grades has today been announced by Empire Resources Ltd (‘Empire’, ASX code: ERL, the “Company”) for its 60% owned Penny’s Find gold project, 50 kilometres northeast of Kalgoorlie in Western Australia.

Empire is currently progressing the Penny’s Find gold project through a Feasibility Study, with a view to commencement of open-pit mining from mid-year and first gold production in the second half of 2016.

Empire’s Managing Director, Mr David Sargeant:

“This maiden high grade open-pit ore reserve, based on a gold price of AUD$1,500/oz, is an important milestone in the progression of Penny’s Find towards development and comes just seven months after Empire resumed management of the project.

“With an average open-pit grade of 4.62g/t Au to a depth of 80m this project represents an excellent near term production opportunity for Empire given the current high gold price.

“We also believe there is substantial upside at Penny’s Find once an ongoing study into development of the underground resource has been completed. This along with exploration potential at depth bodes well for the long term future of the project”.

The Feasibility Study for Penny’s Find is on schedule for completion this month and discussions with financiers regarding project funding are progressing.

DAVID SARGEANT MANAGING DIRECTOR

For further information on the Company, visit www.resourcesempire.com.au

David Sargeant – Managing Director Phone: +61 8 9361 3100 Adrian Jessup – Executive Director Phone: +61 8 9361 3100

Penny’s Find Gold Project

Empire Resources Ltd holds a 60% direct interest in the Penny’s Find gold project situated on granted Mining Lease 27/156. The remaining 40% interest is held by unlisted Brimstone Resources Ltd (‘Brimstone’).

A 2012 JORC compliant reportable mineral resource of 470,000 tonnes @ 4.42g/t Au (Table 1) containing 66,800 ounces of gold was reported to the ASX on the 1 September 2015.

Table 1 – Penny’s Find Resources

Table 1– Penny’s Find Resources Table 1– Penny’s Find Resources Table 1– Penny’s Find Resources Table 1– Penny’s Find Resources Table 1– Penny’s Find Resources Table 1– Penny’s Find Resources Table 1– Penny’s Find Resources

Reportable In Situ Mineral Resource by location and cut-off
Open Cut (0.5g/t) Underground (1.5g/t) Combined
Class Tonnes Au g/t Tonnes Au g/t Tonnes Au g/t
Measured - - - - - -
Indicated 218,000 4.64 84,000 4.90 302,000 4.71
Inferred 82,000 1.79 86,000 5.89 168,000 3.89
TOTAL 300,000 3.86 170,000 5.40 470,000 4.42

Penny Find’s total in-situ mineral resource extends to 250m below surface and remains open at depth. High grade gold mineralization is hosted by quartz veins at the contact between sediments and basalt.

Both oxide and fresh mineralization are free milling with 98% and 99% recoveries achieved in recent testwork respectively. There is also a high gravity recoverable gold component, 53% for oxide and 85% for fresh.

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Figure 1 – Location Penny’s Find deposit

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Figure 2 – Penny’s Find Resource Model showing blocks above 0.5g/t Au

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Figure 3 – Penny’s Find Preliminary Underground Mine Design

Underground Scoping Study

A scoping study has commenced on gold mineralization located below the planned open pit. Table 1 reports an indicated and inferred resource in this area of 170,000t @ 5.40g/t Au.

A preliminary underground mine design has been undertaken to ensure the final open pit design is able to mesh smoothly with any possible future underground development. Figure 3 shows a long section under the proposed open pit. Work to confirm the assumed underground mining parameters is continuing.

Ore Reserve Calculation Summary

From the JORC 2012 code an ‘Ore Reserve’ is the economically mineable part of a Measured and/or Indicated Mineral Resource. It includes diluting materials and allowances for losses, which may occur when the material is mined or extracted and is defined by studies at Pre-Feasibility or Feasibility level as appropriate that include application of Modifying Factors. Such studies demonstrate that, at the time of reporting, extraction could reasonably be justified.

The Penny’s Find ore reserve is contained within a single open pit mined to a depth of 80m with ore trucked off site for treatment through a toll milling facility using conventional gravity recovery and a CIL circuit.

The ore reserve have been calculated at a gold price of AUD$1,500 per ounce and a lower cut-off grade of 1.41g/t Au.

Open cut mining is based on extraction by conventional truck and excavator techniques with 15% ore dilution and 5% ore loss. The open pit will comprise a mixture of free dig and drill and blast reflecting the deeply weathered footwall sediments and fresh competent hanging wall basalts. The footwall angle will average 36 degrees, the hanging wall 42 degrees.

Gold processing and extraction is based on all metallurgical studies completed to date and includes a conservative overall gold recovery of 93%. All additional administration, road diversion, construction and overhead costs, including royalties, have been included in the ore reserve calculation.

The Ore Reserve statement in Table 2 is based on the Mineral Resources (Table 1) and after taking into account all Modifying Factors as detailed below, in the Appendix or in the Feasibility Study report. The Measured and Indicated Mineral Resources are inclusive of those Mineral Resources modified to produce the Ore Reserves.

As required by the JORC Code, no Inferred Resources have been included in this ore reserve calculation.

Table 2 - Ore Reserves

Table 2 - Ore Reserves Table 2 - Ore Reserves Table 2 - Ore Reserves Table 2 - Ore Reserves
PENNY'S FIND OPEN PIT ORE RESERVE - FEBRUARY 2016
DESCRIPTION TONNES GRADE GOLD TO
g/t Au MILL (ozs)
PROVED - - -
PROBABLE 146,000 4.62 21,700
TOTAL 146,000 4.62 21,700

The key inputs or ‘Modifying Factors’ include:

  • Ore mining recovery of 95%;

  • Mining dilution of 15%;

  • A nominal plant throughput of 0.2Mtpa (it is assumed that all the ore from this open pit will be processed in less than 12 months);

  • An overall gold process recovery of 93% based on test work completed at the Perth laboratory of AMMTEC Ltd which indicated that 98% recovery is achievable. This work was performed under the supervision of independent process consultant Mr Bruno Sceresini of Australian Mining Advisors;

  • Geotechnical parameters based on independent consultant reports by MineGeotech;

  • Processing costs of $40/t based on ongoing discussions with three potential toll mill operators;

  • Mining costs averaging $3.44/t ore and waste mined based on hourly hire and contract rates from a number of similar projects;

  • Fixed monthly costs (general and administration) of $0.55/t mined have been added. This includes owner’s salaries plus on costs, light vehicles, office, power generation, communications equipment, other overheads and contractor’s fixed costs.

  • Ore haulage costs of $10.35/t based on indicative quotes from potential contractors;

  • The pit design was based on the optimal undiscounted cash-flow pit shell using a gold revenue price of $1,500/oz and a revenue factor of 1.00. Royalty payable to the West Australian Government of 2.5% has been allowed for; and

  • Capital/Upfront expenditure of $1.47M based on a number of quotes for major items and an in-house analysis by Empire. The biggest capital item is the Pinjin Kurnalpi road re-alignment. Two quotes have been received for this item.

Competent Persons Statements

Ore Reserves

The scientific and technical information in this report that relates to Ore Reserves estimates for the Penny’s Find Project is based on information compiled by Mr Roselt Croeser, an independent consultant to Empire Resources Limited. Mr Croeser is a Member of the Australasian Institute of Mining and Metallurgy. Mr Croeser 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’. Mr Croeser consents to the inclusion in the report of the matters related to the Ore Reserve estimate in the form and context in which it appears.

Mineral Resources

The information is this release concerning the Mineral Resources for the Penny’s Find Deposit have been estimated by Mr Peter Ball B.Sc who is a director of DataGeo Geological Consultants and is a member of the Australasian Institute of Mining and Metallurgy (AusIMM). Mr Ball has sufficient experience which is relevant to the style of mineralization and type of deposit under consideration and qualifies as a Competent Person as defined in the 2012 Edition of the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves”. Mr Ball consents to the inclusion in this public release of the matters based on his information in the form and context in which it appears.

APPENDIX

Penny’s Find Gold Project - JORC Code, 2012 Edition – Table 1

Section 1 : Sampling Techniques and Data
Criteria Explanation Comments
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.
The deposit has been drilled and sampled by
diamond coring, reverse circulation and rotary
air blast methods with holes on variable
spacings over a 500m strike length, the closest
being a 20mE x 10m N grid. The total metres of
the 109 RC and diamond holes used in mineral
resource estimation is 11,754m. The holes are
drilled mostly to the west to intersect the
relatively steeply east dipping north-south
orientated mineralisation.
• Include reference to measures taken to
ensure
sample
representivity
and
the
appropriate calibration of any measurement
tools or systems used.
Initial RAB and shallow RC drilling targeted the
areas of old workings and identified near
surface mineralisation. This was supplemented
by deeper drilling to highlight the mineralisation
within the Shear zone. The RC samples are
collected from the cyclone of the rig with some
split to smaller samples using a rotary or cone
splitter attached to the cyclone or spear
sampled from the large sample. Sample
representivity was governed by sample recovery
which can be erratic in wet conditions.
Diamond core was collected into core trays with
acceptable recovery.
• 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.
The diamond core was HQ sized near surface
and NQ sized in the mineralised zones. Core was
halved and 1/2 sent for sample preparation by
crushing, pulverising and splitting to produce
either a 30gm or 40gm charged size dependent
on the Laboratory. RC drilling collected samples
at 1m intervals down hole. These 1m samples
were either composited to 4m intervals by
spear sampling or submitted as 1m samples
each of approximately 2.5 to 4Kg. These
samples were dried, crushed and pulverised and
either a 30gm, 40gm ort 50gm sub-sample
(dependent on laboratory) selected for FA
assay.
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).
Diamond drilling (4 surface collared holes and 2
tails to RC holes) is mostly NQ sized through the
mineralised zone, the surface holes totalled
1,259m and the two tails 198m. The core was
not orientated. The RC holes were all 135mm
diameter and drilled with a face sampling bit,
the total number of holes is 105 and total
metres is 10,296.
Drill
sample
recovery
• Method of recording and assessing core and
chip sample recoveries and results assessed.
The core recovery recorded is length recovered
per run, the recovery is in excess of 95%. The RC
sample recovery is recorded descriptively as
good, medium or poor and that work by
weighing samples indicated that good recovery
was in excess of 75% and poor recovery was
usually less than 25%, this occurred mostly in
wetground.
• Measures taken to maximise sample
recovery and ensure representative nature of
the samples.
For RC drilling the collar was sealed and air
pressure was used to maximise return. The
cyclone was cleaned between 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.
No assessment has been made of grade v RC
sample recovery but based on the descriptive
assessment the majority of mineralisation was
returned dry and thus usually with good
recovery.
The
competency
of
the
core
demonstrates that there should be minimal
potential for sampling bias.
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.
Core and chips have been geologically logged
recording lithology, mineralisation, veining,
alteration, weathering and some geotechnical
features (core only) like RQD. The geological
logging is appropriate to the style of the
Deposit.
• Whether logging is qualitative or
quantitative in nature. Core (or costean,
channel, etc) photography
Geological
logging
is
both
in
summary
(comments) and detailed by interval for the
information listed above.
• The total length and percentage of the
relevant intersections logged.
The entire length of all diamond and RC holes,
apart from surface casing, has been logged.
Sub-sampling
techniques
and
sample
preparation
• If core, whether cut or sawn and whether
quarter, half or all core taken.
All core to be sampled was 1/2ed using a
mechanical saw. It is not known if the core was
consistently taken from one side of the stick.
• If non-core, whether riffled, tube sampled,
rotary split, etc and whether sampled wet or
dry.
RC samples are collected from the cyclone into
a plastic bucket and then transferred to a
sample bag. In addition a smaller sample is split
using a rotary or cone splitter attached to the
cyclone. The cyclone was cleaned with air and
any loose material scrapped off between
samples. Sub-samples of the larger samples are
taken with a spear.
• For all sample types, the nature, quality and
appropriateness of the sample preparation
technique.
All samples (approx. 2.5 to 4Kg for the RC
samples and 1/2 NQ core up to 1m long) are
provided to a commercial accredited laboratory
facility for the preparation of samples using
industry standard practises of drying, crushing
and pulverising to allow sub-sampling by riffle
or rotarysplitter to a 30 to 50gm charge size.
• Quality control procedures adopted for all
sub-sampling
stages
to
maximise
representivity of samples.
Empire did not include Standards or Blanks for
the 2007 drill program with their routine
samples submitted to the Laboratory but used
an
Umpire
Laboratory
and
SFA
v
FA
comparisons to provide control on quality.
Brimstone included Standards and Blanks at
rates of approximately 1 QAQC sample to 12
Routine samples or better. Whilst there was
some evidence of bias of the lower grade
Standard (1.3g/t) the majority of results can be
considered
acceptable.
Empire
included
Standards and Blanks in their 2015 drilling
campaign at a similar rate to Brimstone.
• 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.
Duplicate RC sampling was conducted in 2012
and the results were supportive of the original
results. No 1/2nd half core duplicate assay
results have been observed.
• Whether sample sizes are appropriate to
the grain size of the material being sampled.
Whilst there is coarse gold in the system the
outlier grades returned are not excessive as
such the sampling appears to be representative
and thus the global grade is being fairly
represented.
Quality of assay
data
and
laboratory tests
• The nature, quality and appropriateness of
the assaying and laboratory procedures used
and whether the technique is considered
partial or total.
The
assay
techniques
applied
for
the
measurement of gold content is appropriate for
the determination of the level of gold in the
sample. Comparison between SFA and FA
methods are reasonable this indicating that the
analytical methods adopted report total gold
content.
• 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.
None applied
• 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.
Standards
and
Blanks
were
included
at
approximately 1 in 12 and 1 in 10 of the number
of samples submitted for the recent (2012 and
2015) holes. The results were mixed with the
lower grade Standards showing a potential high
grade bias (2012 program). Umpire laboratory
checking provided support for the original
results.
Verification
of
sampling
and
assaying
• The verification of significant intersections
by either independent or alternative company
personnel.
Mineralisation intercepts have been determined
by previous and current company personnel and
appear correct
• The use of twinned holes. No specific twinning program has been
conducted.
• Documentation of primary data, data entry
procedures, data verification, data storage
(physical and electronic) protocols
Primary data was recorded directly onto
electronic spread sheets and validated against
expected codes. Assay information in electronic
form from the laboratories was merged with
sample interval data on sample number
• Discuss any adjustment to assay data. None applied
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.
The
collar
positions
were
surveyed
by
contractors after the completion of the 2012
drilling using an RTKGPS on the GDA 94 Zone 51
Datum and the AHD. This survey included some
of the 2007 drill collars which confirmed the
location of these holes in the 2007 data set. The
orientation and dip at the start of the hole was
recorded for all holes. Down hole information
was recorded by single shot camera that
measured dip only for most RC holes with the
exception of later part of the 2007 RC program
where azimuth was also measured. The
diamond tails were measured for dip and
azimuth using a gyroscopic inclinometer. The
2015 drill hole collars were not surveyed post
drilling
and
no
down
orientation
was
undertaken due to the holes relatively short
length!
• Specification of the grid system used. The regional grid is GDA94 Zone 51 and the
Deposit is laid out on a local grid for a central
control point with a 40orotation.
• Quality and adequacy of topographic
control.
Topographic control is taken from contouring
the drill hole collar information and applying
observations of the site to assist in control.
Data spacing and
distribution
• Data spacing for reporting of Exploration
Results.
Drill spacing varies with position in the deposit
from 10mN x 20mE to in excess of 50m.
• 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.
Successive drilling programs have in filled and
extended (at depth) the previous drilling and on
the majority of occasions drilling has returned
mineralisation in the expected locations. This
provides a high degree of confidence in the
geological continuity. Close spaced drilling
provides good support for positioning of the
mineralisation by zone.
• Whether sample compositing has been
applied.
The sampling reflects the geological conditions.
For
mineral
resource
estimation
a
1m
composite length was chosen given that this is
the dominant sample length.
Orientation
of
data in relation to
geological
structure
• Whether the orientation of sampling
achieves
unbiased
sampling
of
possible
structures and the extent to which this is
known, considering the deposit type.
The drilling is oriented as best as possible to
perpendicular
to
the
structure/geology
containing or controlling the mineralisation.
• 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.
No sampling bias is considered to have been
introduced.
Sample security • The measures taken to ensure sample
security.
The chain of custody adopted by operators of
the project appears appropriate and is based on
responsibility and documentation.
Audits or reviews • The results of any audits or reviews of
sampling techniques and data.
A brief audit of assay records revealed no data
errors.

Section 3: Estimation and Reporting of Mineral Resources

Section 3: Estimation and Reporting of Mineral Resources Section 3: Estimation and Reporting of Mineral Resources Section 3: Estimation and Reporting of Mineral Resources
Criteria Explanation Comments
Database
integrity
• Measures taken to ensure that
data has not been corrupted by, for
example, transcription or keying
errors, between its initial collection
and its use for Mineral Resource
estimation purposes.
There is no data storage system in place. Data
from logging, sample submission and the assay
laboratory is combined in many spreadsheets.
Previously (2014) key holes utilised in the
mineral resource assessment had their sample
submission and assay laboratory data re-
entered and compared to the data within the
supplied spreadsheet and no errors were
found. Similarly the data from the 2015 was
reviewed and found to reflect the field and
laboratory data. There has been no exhaustive
review just sufficient to give confidence that
the data to be utilised is accurate with respect
to the supportinginformation.
• Data validation procedures used. Data is validated when combined from the
various sources described above. The "audits"
described above provided sufficient confidence
in the data contents to state that it most likely
accurately represents the drill information.
Site visits • Comment on any site visits
undertaken by the Competent Person
and the outcome of those visits.
DataGeo visited the site on March 26th 2014
and was able to establish that the drill holes
were correctly positioned, the old workings
and position of the shear was appropriate; the
topography was generally flat with fall to the
east and a rise existed at the southern central
end of the area. Also RC chips, chip trays and
diamond core was reviewed to establish the
support for the mineralisation. No site visit to
inspect the recent drilling program was felt
necessary
• If no site visits have been
undertaken indicate why this is the
case.
Not applicable
Geological
interpretation
• Confidence in (or conversely, the
uncertainty of) the geological
interpretation of the mineral deposit.
The confidence in the geological interpretation
is considered good as it is supported by surface
mapping and corroboration of the surface
positions with the close spaced drilling. The
Penny's Find Shear is a major outcropping
feature and the quartz associated gold
mineralisation within it (as modelled) appears
consistent with the feature.
• Nature of the data used and of any
assumptions made.
Only physical data obtained in the field was
utilised.
• The effect, if any, of alternative
interpretations on Mineral Resource
estimation.
The application of hard boundaries to reflect
the position of the zones which host the
mineralisation is supported by the field and
drilling observations. This interpretation is
thought to be appropriate to the style of
mineralisation be it the entire shear (2014) or
just the higher-grade zones within the shear
(2015).
• The use of geology in guiding and
controlling Mineral Resource
estimation.
The position of the shear provides the overall
geological control with some allowance for
interpreted fault, this combined with presence
of gold is used to constrain the interpretation.
• The factors affecting continuity
both of grade and geology.
The higher-grade gold zones occur mostly
within the overall Shear appearing to be sub-
parallel to Shear. To the east of the Shear and
within
the
weathered
profile
there
is
interpreted to be flat lying supergene style
mineralisation. The position and style of
mineralisation impacts thegrade continuity.
Dimensions • The extent and variability of the
Mineral Resource expressed as length
(along strike or otherwise), plan
width, and depth below surface to the
upper and lower limits of the Mineral
Resource.
The main mineralisation within the Deposit
occurs over a 450m strike length and extends
some 250m down dip and varies between 2
and 10m in width. The deposit remains open at
depth although thinning.
Estimation and
modelling
techniques
• The nature and appropriateness of
the estimation technique(s) applied
and key assumptions, including
treatment of extreme grade values,
domaining, interpolation parameters
and maximum distance of
extrapolation from data points. If a
computer assisted estimation method
was chosen include a description of
computer software and parameters
used.
The largest high-grade zone contained in
excess of 440 composites and provided a
reasonable continuity model which supported
the use of ordinary kriging. The composites
were top-cut and search restricted. Zones with
fewer composites (insufficient data to perform
a continuity assessment) had grade estimated
using inverse distance to the power of 3 to
reflect the relatively high nugget within the
Deposit. If there were < 10 composites the
grade was assigned as the average of the
composites.
In
all
cases
if
appropriate
composites were top-cut. Grade estimation
was carried out in VulcanTMapplication. Density
was assigned based on, for fresh rock,
representative measurements made from what
core was available. For oxidised and partially
oxidised material specific gravity was assigned
based on results from similar deposits within
the general area. 1m composites were created
within each zone and input to the grade
estimation (or assigning) was restricted to
those composites which were within the zone
being
assessed.
Estimated
blocks
were
informed in a three step strategy with
orientation set to the orientation of the zone
being estimated. The initial (primary) search
was 30m x 20m x 5m in strike, dip and across
dip-strike plane. This search range was
expanded by double the length for blocks were
not informed in the primary search and again
in the final search strategy. This strategy
informed on average 94% of the blocks within
the zones to be estimated in the primary and
secondarysearch.
• The availability of check estimates,
previous estimates and/or mine
production records and whether the
Mineral Resource estimate takes
appropriate account of such data.
There is no mining history. The previous model
was significantly larger in tonnes with lower
grade above cut-off due to the modelling of the
entire shear zone. Check estimates for the
largest zone using inverse distance provided a
similar result.
Estimation and
modelling
techniques
(continued)
• The assumptions made regarding
recovery of by-products.
No assumptions made.
• Estimation of deleterious elements
or other non-grade variables of
economic significance (eg sulphur for
acid mine drainage characterisation).
No assessment of deleterious elements has
been made.
• In the case of block model
interpolation, the block size in relation
to the average sample spacing and
the search employed.
The block model was constructed using blocks
which were 5mE x 20mN x 5mRL with sub-
celling to 2.5mE x 10mN x 1mRL the block size
in each direction adopted to ensure accurate
volume representation of the various surface
and zones. Grade estimation was to the parent
block size.
• Any assumptions behind modelling
of selective mining units.
None undertaken
• Any assumptions about correlation
between variables.
No assessment undertaken
• Description of how the geological
interpretation was used to control the
resource estimates.
Hard boundaries were applied to the Zones.
Grade was estimated within these boundaries.
• Discussion of basis for using or not
using grade cutting or capping.
Statistical analysis indicated that some zones in
particular the largest ones had elevated
coefficients of variation and thus to minimise
the influence of outlier grades top-cuts were
applied, high-grade influence was restricted in
some circumstances
• The process of validation, the
checking process used, the
comparison of model data to drill hole
data, and use of reconciliation data if
available.
Volume
validation
was
carried
out
by
comparison of the solids representing the
mineralisation to the block model. Grade
validation
was
carried
by
both
global
comparison of the average estimated grade to
the average input grade and spatially by
comparison of the estimated grades to the
input grades by position for the largest zone.
Also visual comparison was used.
Moisture • Whether the tonnages are
estimated on a dry basis or with
natural moisture, and the method of
determination of the moisture
content.
The tonnages were estimated using specific
gravity
determined
by
weight
in
air
measurements for fresh rock. This data was
then assigned to the appropriate positions in
the block model by rock type. Indicative values
were assigned to the weathered profile.
Cut-off
parameters
• The basis of the adopted cut-off
grade(s) or quality parameters
applied.
The margin of the zones of mineralisation is a
combination of lithology and grade. Given the
model targeted higher grade anomalous gold is
considered to be the 0.5g/t and above. For
mineral resource reporting cut-off of 0.5g/t for
open cut (to depth of 100m) and 1.5g/t for
underground (beneath 100m) returns that part
of the resource which, based on grade alone,
has thepotential to be mined.
Mining factors
or assumptions
• Assumptions made regarding
possible mining methods, minimum
mining dimensions and internal (or, if
applicable, external) mining dilution.
It is always necessary as part of the
process of determining reasonable
prospects for eventual economic
extraction to consider potential
mining methods, but the assumptions
made regarding mining methods and
parameters when estimating Mineral
Resources may not always be
rigorous. Where this is the case, this
should be reported with an
explanation of the basis of the mining
assumptions made.
Mining scoping studies based on previous
models indicated that economic extraction by
open cut could occur to 80m below the
surface. The details of this assessment are not
known to DataGeo but it is assumed that the
then mineral resource was optimised using
indicative cost structures (2007 to 2009 and
2015) and gold prices. Such studies did not
review the potential for underground mining.
Post
these
studies
underground
mining
scenarios have been considered.
Metallurgical
factors or
assumptions
• The basis for assumptions or
predictions regarding metallurgical
amenability. It is always necessary as
part of the process of determining
reasonable prospects for eventual
economic extraction to consider
potential metallurgical methods, but
the assumptions regarding
metallurgical treatment processes
and parameters made when reporting
Mineral Resources may not always be
rigorous. Where this is the case, this
should be reported with an
explanation of the basis of the
metallurgical assumptions made.
Some metallurgical test work to determine
gold recovery (both by gravity and cyanide
leaching) has occurred which indicates that the
recovery would be in excess of 95%. This was
based on two very high-grade samples (one of
oxide, the other of fresh) which are not
representative of the likely open cut mining
grade that this deposit could support.
Environmental
factors or
assumptions
• Assumptions made regarding
possible waste and process residue
disposal options. It is always
necessary as part of the process of
determining reasonable prospects
for eventual economic extraction to
consider the potential environmental
impacts of the mining and processing
operation. While at this stage the
determination of potential
environmental impacts, particularly
for a greenfields project, may not
always be well advanced, the status
of early consideration of these
potential environmental impacts
should be reported. Where these
aspects have not been considered this
should be reported with an
explanation of the environmental
assumptions made.
The Deposit is located on a granted mining
license. DataGeo is unaware of any studies
relating to environmental impacts of a
potential mining and processing operation in
the location. These are numerous mining and
processing operations within 50Km of the site
thus it is considered likely that environmental
impacts would be manageable.
Bulk density • Whether assumed or determined. If
assumed, the basis for the
assumptions. If determined, the
method used, whether wet or dry, the
frequency of the measurements, the
nature, size and representativeness of
the samples.
Density has been assumed based on a limited
number of core sample measurements using
weight in the air and weight in water
technique. The results were applied to the
appropriate
locations
in
the
model.
Assumptions were made as the density of the
material in the weatheredprofile.
• The bulk density for bulk material
must have been measured by
methods that adequately account for
void spaces (vugs, porosity, etc),
moisture and differences between
rock and alteration zones within the
deposit.
The rocks do not display significant porosity
thus the technique adopted is appropriate.
• Discuss assumptions for bulk
density estimates used in the
evaluation process of the different
materials.
The material is generally fairly uniform as
evidenced by the consistency in what specific
gravity information is available.
Classification • The basis for the classification of
the Mineral Resources into varying
confidence categories.
The classification is based on the quality and
amount of input data; the spatial arrangement
of the drill data and its supported position; the
grade continuity for the largest zone and
confidence in the geological interpretation
which is supported by field observation and
drilling. Whilst QAQC information is lacking for
the 2007 drilling comprehensive programs for
the 2012 and 2015 drilling was mostly
supportive. Higher confidence areas have more
supporting data, areas of lower geological
support reflect a lower classification.
• Whether appropriate account has
been taken of all relevant factors (ie
relative confidence in tonnage/grade
estimations, reliability of input data,
confidence in continuity of geology
and metal values, quality, quantity
and distribution of the data).
The input data particularly the more recent is
consistent and closely spaced enough to
support the projection of the geological
interpretation at depth which in terms of style
of mineralisation is consistent with other
deposits within the same or similar geological
setting.
Later
drilling
programs
have
successfully in filled earlier programs in
mineralised locations predicted by the initial
programs - this is particularly the case with the
2015 drilling. The estimated grade correlates
reasonably well with the input data given the
nature of the mineralisation.
• Whether the result appropriately
reflects the Competent Person’s view
of the deposit.
The Mineral Resource estimate reflects the
Competent Persons understanding of the
Deposit.
Audits or
reviews.
• The results of any audits or reviews
of Mineral Resource estimates.
None undertaken
Discussion of
relative
accuracy/
confidence
• Where appropriate a statement of
the relative accuracy and confidence
level in the Mineral Resource estimate
using an approach or procedure
deemed appropriate by the
Competent Person. For example, the
application of statistical or
geostatistical procedures to quantify
the relative accuracy of the resource
within stated confidence limits, or, if
such an approach is not deemed
appropriate, a qualitative discussion
of the factors that could affect the
relative accuracy and confidence of
the estimate.
The mineral resource is volume constrained by
the geological interpretation thus in a global
sense there is no sensitivity. As would be
expected there is sensitivity to the estimated
resource grade related to be the top-cut
applied with indication that grade could be
influenced by 10 to 15% in the main
mineralised
zone.
Whilst
DataGeo
is
comfortable with the top-cut applied (based on
what appears to be a distinct change in
population statistics) the influence of the
higher-grade needs additional review. The
confidence in the mineral resource is defined
by the classification adopted as per the
guidelines of the 2012 JORC code.
• The statement should specify
whether it relates to global or local
estimates, and, if local, state the
relevant tonnages, which should be
relevant to technical and economic
evaluation. Documentation should
include assumptions made and the
procedures used.
The statement relates to global estimates of
tonnes and grade.
• These statements of relative
accuracy and confidence of the
estimate should be compared with
production data, where available.
No production information from the old
working is available.

Section 4 - Estimation and Reporting of Ore Reserves

(Criteria listed in section 1, and where relevant in sections 2 and 3, also apply to this section)

Section 4-Estimation and Reporting of Ore Reserves
(Criteria listed in section 1, and where relevant in sections 2 and 3, also apply to this section)
Section 4-Estimation and Reporting of Ore Reserves
(Criteria listed in section 1, and where relevant in sections 2 and 3, also apply to this section)
Section 4-Estimation and Reporting of Ore Reserves
(Criteria listed in section 1, and where relevant in sections 2 and 3, also apply to this section)
Criteria Explanation Commentary
Mineral
Resource
estimate for
conversion to
Ore Reserves
Description
of
the
Mineral
Resource estimate used as a
basis for the conversion to an Ore
Reserve.
Clear statement as to whether the
Mineral Resources are reported
additional to, or inclusive of, the
Ore Reserves.
The Measured and Indicated Resources from
Section 3 have been used as the basis for
conversion to the Ore Reserve.
The Mineral Resources are inclusive of the Ore
Reserve.
Site visits Comment
on
any
site
visits
undertaken by the Competent
Person and the outcome of those
visits.
If
no
site
visits
have
been
undertaken indicate why this is
the case.
No site visit was undertaken by the Competent
Person. There are no current facilities at the
project site.
Study status The type and level of study
undertaken to enable Mineral
Resources to be converted to Ore
Reserves.
The Code requires that a study to
at least Pre-Feasibility Study level
has been undertaken to convert
Mineral
Resources
to
Ore
Reserves. Such studies will have
been carried out and will have
determined a mine plan that is
technically
achievable
and
economically viable, and that
material Modifying Factors have
been considered.
A Feasibility Study has been prepared and is
ready for issue.
Cut-off
parameters
The basis of the cut-off grade(s)
or quality parameters applied.
The cut-off grade has been calculated based on
the pit optimisation inputs. The basis for
calculation of cut-off is:
𝐶𝑢𝑡 𝑜𝑓𝑓 𝑔𝑟𝑎𝑑𝑒
=
(𝑝𝑟𝑜𝑐𝑒𝑠𝑠+ 𝑜𝑣𝑒𝑟ℎ𝑒𝑎𝑑 𝑐𝑜𝑠𝑡) × (1 + 𝑀𝑖𝑛𝑖𝑛𝑔 𝐷𝑖𝑙𝑢𝑡𝑖𝑜𝑛(%))
𝑃𝑎𝑦𝑎𝑏𝑙𝑒 𝐺𝑜𝑙𝑑 𝑃𝑟𝑖𝑐𝑒 × 𝑃𝑟𝑜𝑐𝑒𝑠𝑠 𝑅𝑒𝑐𝑜𝑣𝑒𝑟𝑦 (%)
Mining factors
or assumptions
The method and assumptions
used as reported in the Pre-
Feasibility or Feasibility Study to
convert the Mineral Resource to
an Ore Reserve (i.e. either by
application of appropriate factors
by optimisation or by preliminary
or detailed design).
The
choice,
nature
and
appropriateness of the selected
mining
method(s)
and
other
mining
parameters
including
associated design issues such as
pre-strip, access, etc.
The assumptions made regarding
geotechnical parameters (eg pit
slopes, stope sizes, etc), grade
_control andpre-production drilling. _
The Mineral Resources have been optimised
using Whittle software followed by detailed
final pit design. The Ore Reserve is the
Measured and Indicated Resources within
the pit design, after allowing for ore loss and
mining dilution.
The mining method selected is open pit,
selective mining of ore and waste on nominal
2.5 m benches using a backhoe excavator.
Pit ramps are designed at a 10% gradient
and 22 m wide, except for lower pit levels
where the ramp is 10 m wide with a 1 in 7
gradient.
A Feasibility Study level geotechnical study
has been completed by MineGeotech. The
resultant pit design parameters have been
used for the pit design and the overall pit
slope angle was estimated for thepreceding
The major assumptions made and
Mineral Resource model used for
pit and stope optimisation (if
appropriate).
The mining dilution factors used.
The mining recovery factors used.
Any minimum mining widths used.
The manner in which Inferred
Mineral Resources are utilised in
mining studies and the sensitivity
of the outcome to their inclusion.
The infrastructure requirements of
the selected mining methods.
pit optimisations.
Grade control will be based on additional RC
drilling and pit mapping and a 10 m along
strike and 10 m across strike pattern has
been allowed for.
Mining dilution was estimated to be 15%, at
zero grade. This was based on consideration
of the width, continuity and orientation of the
orebody and the planned mining method.
Ore recovery of 95% has been estimated to
allow for losses from blasting and grade
control.
A minimum mining width was set at 10 m.
Inferred Resources within the pit design
contains <7% of total gold and have not been
considered for Ore Reserve estimates.
Infrastructure required for the open pit mining
operation will be limited to mining contractor
workshop, mining office, water storage dam,
ROM pad, fuel and explosives storage. A
road deviation for the Pinjin Kurnalpi Road is
required to bypass the open pit.
Metallurgical
factors or
assumptions
The metallurgical process
proposed and the
appropriateness of that process to
the style of mineralisation.
Whether the metallurgical process
is well-tested technology or novel
in nature.
The nature, amount and
representativeness of
metallurgical test work
undertaken, the nature of the
metallurgical domaining applied
and the corresponding
metallurgical recovery factors
applied.
Any assumptions or allowances
made for deleterious elements.
The existence of any bulk sample
or pilot scale test work and the
degree to which such samples are
considered representative of the
orebody as a whole.
For minerals that are defined by a
specification, has the ore reserve
estimation been based on the
appropriate mineralogy to meet
the specifications?
The
metallurgical
process
proposed
is
conventional gold extraction by CIL. For all
ores data indicates recovery of gold would be
feasible.
Metallurgical processes proposed are all
well-tested technology and appropriate for
the styles of mineralisation.
Extensive metallurgical testwork has been
undertaken under the direction of Australian
Mining Advisors and included:
Gravity concentration.
Gravity tails cyanidation.
Carbon preg robbing from Black Shales.
Oxygen uptake.
Metallurgical domaining is into oxides and
primary mineralization as defined in the Mineral
Resource models.
Metallurgical
recoveries
determined
from
testwork indicate recoveries of 98% for oxides
and 99% for primary material. A value of 93%
overall was used for the Ore Reserves.
Preg robbing by carbon due to Black Shales
appear not to have a deleterious effect on
gold extraction.
No bulk sample of pilot scale test work was
justified or completed.
Not applicable.
Environmental The status of studies of potential
environmental impacts of the
mining and processing operation.
Details
of
waste
rock
characterisation
and
the
consideration of potential sites,
status
of
design
options
considered and, where applicable,
the
status
of
approvals
for
process
residue
storage
and
waste dumps should be reported.
Environmental studies have been completed by
Botanica, Greg Harewood, MWES Consulting,
Maria
Jose
Romero
Segura,
SGS
and
Chemcentre. This included studies into:
Flora.
Fauna.
Surface Hydrology.
Sub-surface Hydrology.
Soil, Waste Rock and Groundwater analysis.
All potential environmental and social impacts
associated
with
the
Project
have
been
considered and no issue has been identified that
cannot
be mitigated or managed to an
acceptable degree.
Waste geochemistry investigations have
been undertaken by SGS and testing of
waste rock samples indicates that none of
the
waste
rock
samples
tested
were
potentially acid generating. Management of
surface runoff and seepage from the waste
dumps and pit walls during operation will
need to be managed and final waste dumps
capped with suitable materials to minimise
water infiltration.
Infrastructure The
existence
of
appropriate
infrastructure: availability of land
for plant development, power,
water, transportation (particularly
for bulk commodities), labour,
accommodation; or the ease with
which the infrastructure can be
provided, or accessed.
The Pinjin Kurnalpi Road passes through the
mine lease area and will need to be diverted
to allow mining to start. This road gives
access to the substantial mining centre of
Kalgoorlie which is approximately 50 km
away.
Power will be generated on site using mobile,
diesel powered generators.
Water will be sourced from onsite dewatering
bores. Potable water will be transported from
Kalgoorlie.
Miscellaneous licences and general purpose
licences have been applied for to fit in the
waste dump, the abandonment bund, the
road diversion, watercourse control bunding
and a water line to Lake Penny in case
excess dewatering water needs to be
disposed of.
A
communications
tower
and
related
equipment will be installed on site for phone
and data communications.
The project will rely on the mining centre of
Kalgoorlie for labour and accommodation.
Costs The derivation of, or assumptions
made, regarding projected capital
costs in the study.
The methodology used to
estimate operating costs.
Capital costs were estimated from written
quotes obtained for a number of substantial
items and additional estimates based on
experience with similar projects. The current
estimate is $1.468M which includes $400,000
for the Pinjin Kurnalpi Road realignment. So
far two preliminary quotes have been
received for this substantial item.
Mining operating costs have been based on
hourly hire and contractor rates for similar
projects. The average mining costs are
$3.44/t mined. Fixed monthly costs including
Allowances made for the content
of deleterious elements.
The source of exchange rates
used in the study.
Derivation of transportation
charges.
The basis for forecasting or
source of treatment and refining
charges, penalties for failure to
meet specification, etc.
The allowances made for royalties
payable, both Government and
private.
owner’s costs and contractor’s fixed costs
make up and additional $0.55/t mined. This
includes the general and administration cost.
An additional allowance of $10.35/t ore has
been included to transport ore to a toll milling
processing plant. Processing costs have
been estimated based on experience with
similar projects and ongoing discussions with
toll mill operators. The toll milling cost has
been estimated to be $40.00/t milled. Most
of the operating costs need to be confirmed
with written quotes.
The current US$/AUD exchange rate of 0.70
US$/AUD has been used for the estimation
of revenue. This has been fairly consistent
for some time. All the costs will be in AUD.
The only substantial transport charge is
related to ore haulage to the nominated toll
mill. This has been estimated based on a
rate of $0.164/t km and a distance of 63 km.
An agreement needs to be negotiated.
Toll milling costs have been based on typical
rates prevailing in the West Australian
goldfields and ongoing discussions with toll
mill operators. Actual toll milling costs will
depend on the final agreement that is
reached.
The royalty paid to the West Australian
government will be 2.5% of revenue. There
are no other royalties payable.
Revenue
factors
The derivation of, or assumptions
made regarding revenue factors
including head grade, metal or
commodity
price(s)
exchange
rates,
transportation
and
treatment charges, penalties, net
smelter returns, etc.
The derivation of assumptions
made of metal or commodity
price(s), for the principal metals,
minerals and co-products.
Revenue for pit optimisation assumes a gold
sale price of $1500/oz and excludes transport
and
refining
charges
and
government
royalties.
In selecting the optimised pit shell used for pit
designs, and hence Ore Reserve estimation,
the maximum undiscounted cashflow pit shell
with a revenue factor of 1.00 was selected.
This pit shell gave more space for an access
ramp to be accommodated.
Market
assessment
The demand, supply and stock
situation
for
the
particular
commodity, consumption trends
and factors likely to affect supply
and demand into the future.
A
customer
and
competitor
analysis
along
with
the
identification
of
likely
market
windows for the product.
Price and volume forecasts and
the basis for these forecasts.
For
industrial
minerals
the
customer
specification,
testing
and
acceptance
requirements
prior to a supply contract.
The market for gold is well established and
the price has varied over the past two years
from a low of around $1330/oz in November
2014 to a current high of $1730 (Australian
Dollars).
No formal market assessment or forecast for
the gold price has been undertaken by
Empire.
Economic The
inputs
to
the
economic
analysis
to
produce
the
net
present value (NPV) in the study,
the source and confidence of
these economic inputs including
estimated inflation, discount rate,
etc.
The February 2016 Feasibility Study is ready
to be issued by Empire and includes the
inputs and economic analysis details used.
The undiscounted cashflow was estimated to
be $5.4M. The short mine life does not justify
discounting or allowance for inflation.
No sensitivityanalysis has been completed.
NPV ranges and sensitivity to
variations
in
the
significant
assumptions and inputs.
The primary sensitivities will be the gold
price, metallurgical recovery, the mining cost
and the processing cost. Every $100/oz
variation in the gold price changes the
cashflow of the project by approximately
$2M.
Social The status of agreements with
key stakeholders and matters
leading
to
social
licence
to
operate.
There are no agreements in place.
Other To the extent relevant, the impact of
the following on the project and/or on
the estimation and classification of
the Ore Reserves:
Any identified material naturally
occurring risks.
The
status
of
material
legal
agreements
and
marketing
arrangements.
The
status
of
governmental
agreements and approvals critical
to the viability of the project, such
as mineral tenement status, and
government
and
statutory
approvals.
There
must
be
reasonable grounds to expect that
all
necessary
Government
approvals will be received within
the timeframes anticipated in the
Pre-Feasibility or Feasibility study.
Highlight
and
discuss
the
materiality
of
any
unresolved
matter that is dependent on a
third party on which extraction of
the reserve is contingent.
No material naturally occurring risks have
been identified.
No material legal or marketing agreements
have been entered into.
The Mining Lease over the tenement that
contains the Ore Reserves has been granted.
A
number
of
general
purpose
and
miscellaneous licenses have been applied for
and are pending. These licenses are for
water management bunds, waste dump and
the Pinjin Kurnalpi road diversion.
The
Mining
Proposal
and
Project
Management Plan have been submitted for
approval
and
are
expected
to
take
approximately 3 months to be approved.
Classification The basis for the classification of
the Ore Reserves into varying
confidence categories.
Whether the result appropriately
reflects the Competent Person’s
view of the deposit.
The proportion of Probable Ore
Reserves that have been derived
from
Measured
Mineral
_Resources(if any). _
Indicated Resources have been converted to
Probable Reserves.
The estimated Ore Reserves are, in the
opinion
of
the
Competent
Person,
appropriate for these deposits.
No
Measured
Resources
have
been
classified as Probable Reserves.
Audits or
reviews
The results of any audits or
reviews
of
Ore
Reserve
estimates.
No audits have been undertaken.
Discussion of
relative
accuracy/
confidence
Where appropriate a statement of
the
relative
accuracy
and
confidence
level
in
the
Ore
Reserve
estimate
using
an
approach or procedure deemed
appropriate by the Competent
Person.
For
example,
the
application
of
statistical
or
geostatistical
procedures
to
quantify the relative accuracy of
the
reserve
within
stated
confidence limits, or, if such an
approach
is
not
deemed
appropriate,
a
qualitative
All areas of the Ore Reserve estimate have
been completed to Feasibility Study level.

discussion of the factors which could affect the relative accuracy and confidence of the estimate.The statement should specify whether it relates to global or local estimates, and, if local, state the relevant tonnages, which should be relevant to technical and economic evaluation. Documentation should include assumptions made and the procedures used.Accuracy and confidence discussions should extend to specific discussions of any applied Modifying Factors that may have a material impact on Ore Reserve viability, or for which there are remaining areas of uncertainty at the current study stage.It is recognised that this may not be possible or appropriate in all circumstances. These statements of relative accuracy and confidence of the estimate should be compared with production data, where available.