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PERSEUS MINING LIMITED Capital/Financing Update 2014

Aug 26, 2014

46513_rns_2014-08-26_b01b5f26-ecc8-455a-b7ea-161960434d3d.pdf

Capital/Financing Update

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27 August 2014

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NEWS RELEASE

PERSEUS MINING UPDATES EDIKAN MINERAL RESOURCE

Perseus Mining Limited (ASX/TSX: PRU) wishes to advise that following an infill drilling programme on the Edikan Gold Mine (“EGM”) mining leases in Ghana in the period up to June 2014, and after adjusting key assumptions to reflect actual results to date, Mineral Resource estimates have been updated by independent consultant, RungePincockMinarco in accordance with the JORC Code – 2012 Edition. A Table 1 as required by the JORC Code (2012) for each of the revised Mineral Resource estimates is presented in Attachments 2 to 9 respectively.

A detailed summary of the current Mineral Resource estimate for each of the mineral deposits identified to date on the EGM tenements, calculated using a 0.40 g/t gold cut-off grade, is presented in Attachment 1. The Mineral Resource estimates take into account mining depletion as at 30 April 2014 as relevant.

In summary, the revised global Mineral Resource estimate for the EGM is as follows:

Table 1: EGM Measured and Indicated Mineral Resources

Weathering
Domain
Measured Measured Indicated Indicated Measured + Indicated Measured + Indicated Measured + Indicated
‘000
Tonnes
Grade
(g/t Au1,)
Contained
Gold (oz)
‘000
Tonnes
Grade
(g/t Au)
Contained
Gold (oz)
‘000
Tonnes
Grade
(g/t Au)
Contained
Gold (oz)
Oxides 240 1.8 13,800 660 1.0 20,600 900 1.2 34,300
Transition 760 1.3 32,500 2,700 1.1 99,700 3,460 1.2 132,200
Fresh 74,670 1.1 2,737,300 72,510 1.0 2,434,000 147,170 1.1 5,171,300
TOTAL 75,670 1.1 2,783,600 75,860 1.0 2,554,300 151,530 1.1 5,337,800

Notes: 1. Denotes grams per tonne of gold; 2. All stated gold grades and quantities are cut grades and cut ounces respectively.

Table 2: EGM Inferred Mineral Resources

Weathering
Domain
Inferred Inferred
‘000
Tonnes
Grade
(g/t1Au)
Contained
Gold (oz)
Oxides 2,960 1.1 109,100
Transition 3,140 1.1 109,700
Fresh 68,680 1.0 2,137,000
TOTAL 74,770 1.0 2,355,700

Relative to the previous Mineral Resource estimate for EGM published in June 2013, the updated Mineral Resource contains 357,300 fewer ounces of gold in the Measured and Indicated categories and 74,300 fewer ounces in the Inferred category. After adjusting both Mineral Resource estimates to the mining surface as at 30 April 2014, the net decrease in Mineral Resources is 155,500 ounces (2.8%) in the Measured and Indicated category and 73,800 ounces (3.0%) in the Inferred category.

Work is underway on revising the design of each of the pits based on the updated Mineral Resources as well as key operating parameters, and reassessing the sequence in which each of the pits will be brought into production, with the objective of maximising cash flow generated by the Edikan operation. The revised Life of Mine Plan and updated Ore Reserve statement is expected to be completed in the December 2014 Quarter.

Perseus Mining Limited Second Floor, 437 Roberts Road, Subiaco WA 6008, Australia PO Box 1578, Subiaco WA 6904, Australia T +618 6144 1700 | F +618 6144 2406

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Comment from Managing Director, Jeff Quartermaine

The overall change to Edikan’s Mineral Resource estimate is relatively immaterial but it does reflect several points worth noting.

The first is that actual conditions encountered once mining operations commence do not always totally mirror assumptions made when initial mine planning takes place. In this case the bulk density of ore mined in the AF Gap and Fobinso pits is slightly different to what was assumed in prior Mineral Resource estimates and when this difference is factored into Mineral Resource calculations, it does have an impact, albeit, reasonably small.

The second key takeaway from the current Mineral Resource estimate is that our recent infill drilling programme at Bokitsi South has been successful in identifying mineable material with a head grade well above the life of mine average ore grade that may lead to an increase in the average head grade of ore processed by our mill.

The grade of the Mineral Resources in the Bokitsi North and South deposits has increased from 2.6g/t to 3.0g/t and the amount of contained metal has also increased slightly. Further infill drilling is planned at Bokitsi South that will particularly target extensions to the ore body to the south and at depth where the mineralisation appears to remain open. An infill drilling programme is also currently underway at Mampong with the aim of delineating higher grade material and this will be extended to other deposits at Edikan in due course, subject to budgetary constraints”

To discuss any aspect of this announcement, please contact:

Managing Director: Jeff Quartermaine at telephone +61 8 6144 1700 or email [email protected] (Perth);

Investor Relations: Nathan Ryan at telephone +61 4 20 582 887 or email [email protected] (Melbourne).

Perseus Mining Limited Second Floor, 437 Roberts Road, Subiaco WA 6008, Australia PO Box 1578, Subiaco WA 6904, Australia T +618 6144 1700 | F +618 6144 2406

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Competent Person Statement

The information in this report and the attachments that relates to Mineral Resources for the AFGap-Fobinso and Mampong deposits is based on information compiled by Vanessa O’Toole and Graham de la Mare under the supervision of Steve Hinde, a Competent Person who is a Member of the Australasian Institute of Mining and Metallurgy, and a full time employee of RungePincockMinarco. Mr Hinde has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he has undertaken to qualify as a Competent Person as defined in the JORC Code 2012. Mr Hinde has no economic, financial or pecuniary interest in the company and consents to the inclusion in this report of the matters based on his information in the form and context in which it appears.

The information in this report and the attachments that relates to Mineral Resources for the Bokitsi and Fetish deposits is based on information compiled by Paul Payne under the supervision of Graham de la Mare, a Competent Person who is a Member of the Australian Institute of Geoscientists, and a full time employee of RungePincockMinarco. Mr de la Mare has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he has undertaken to qualify as a Competent Person as defined in the JORC Code 2012.Mr de la Mare has no economic, financial or pecuniary interest in the company and consents to the inclusion in this report of the matters based on his information in the form and context in which it appears.

The information in this report and the attachments that relates to Mineral Resources for the Esuajah North, Esuajah South, and Chirawewa deposits is based on information compiled by Graham de la Mare, a Competent Person who is a Member of the Australian Institute of Geoscientists, and a full time employee of RungePincockMinarco. Mr de la Mare has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he has undertaken to qualify as a Competent Person as defined in the JORC Code 2012.Mr de la Mare has no economic, financial or pecuniary interest in the company and consents to the inclusion in this report of the matters based on his information in the form and context in which it appears.

The information in this report and the attachments that relates to Mineral Resources for the Dadieso deposit is based on information compiled by Vanessa O’Toole under the supervision of Graham de la Mare, a Competent Person who is a Member of the Australian Institute of Geoscientists, and a full time employee of RungePincockMinarco. Mr de la Mare has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he has undertaken to qualify as a Competent Person as defined in the JORC Code 2012.Mr de la Mare has no economic, financial or pecuniary interest in the company and consents to the inclusion in this report of the matters based on his information in the form and context in which it appears.

The information in this report and the attachments that relates to Exploration Results and Sampling for all deposits reported on is based in information compiled by Kevin Thomson, a Competent Person who is a member of the Association of Professional Geoscientists of Ontario and a full time employee of a subsidiary of the Company. Mr Thomson has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he has undertaken to qualify as a Competent Person as defined in the JORC Code 2012 and consents to the inclusion in this report of the matters based on his information in the form and context in which it appears.

Caution Regarding Forward Looking Information : This report contains forward-looking information which is based on the assumptions, estimates, analysis and opinions of management made in light of its experience and its perception of trends, current conditions and expected developments, as well as other factors that management of the Company believes to be relevant and reasonable in the circumstances at the date that such statements are made, but which may prove to be incorrect. Assumptions have been made by the Company regarding, among other things: the price of gold, continuing commercial production at the Edikan Gold Mine without any major disruption, development of a mine at Tengréla, the receipt of required governmental approvals, the accuracy of capital and operating cost estimates, the ability of the Company to operate in a safe, efficient and effective manner and the ability of the Company to obtain financing as and when required and on reasonable terms. Readers are cautioned that the foregoing list is not exhaustive of all factors and assumptions which may have been used by the Company. Although management believes that the assumptions made by the Company and the expectations represented by such information are reasonable, there can be no assurance that the forward-looking information will prove to be accurate. Forward-looking information involves known and unknown risks, uncertainties, and other factors which may cause the actual results, performance or achievements of the Company to be materially different from any anticipated future results, performance or achievements expressed or implied by such forward-looking information. Such factors include, among others, the actual market price of gold, the actual results of current exploration, the actual results of future exploration, changes in project parameters as plans continue to be evaluated, as well as those factors disclosed in the Company's publicly filed documents. The Company believes that the assumptions and expectations reflected in the forward-looking information are reasonable. Assumptions have been made regarding, among other things, the Company’s ability to

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carry on its exploration and development activities, the timely receipt of required approvals, the price of gold, the ability of the Company to operate in a safe, efficient and effective manner and the ability of the Company to obtain financing as and when required and on reasonable terms. Readers should not place undue reliance on forwardlooking information. Perseus does not undertake to update any forward-looking information, except in accordance with applicable securities laws.

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INDEX OF ATTACHMENTS

1. Edikan Gold Mine Global Mineral Resource Estimate – July 2014

2. JORC Table 1 – AFGap-Fobinso Deposit

3. JORC Table 1 – Fetish Deposit

4. JORC Table 1 – Bokitsi Deposit

5. JORC Table 1 – Chirawewa Deposit

6. JORC Table 1 – Esuajah North Deposit

7. JORC Table 1 – Euajah South Deposit

8. JORC Table 1 – Mampong Deposit

9. JORC Table 1 – Dadieso Deposit

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ATTACHMENT 1

Edikan Gold Mine

Global Mineral Resource Estimate – July 2014

(0.4g/t Au Cut-off Grade)

Type Measured Indicated Measured & Indicated Inferred
Tonnes
Grade
Contained
g/t
Gold(ozs)
Tonnes
Grade
Contained
g/t
Gold(ozs)
Tonnes
Grade
Contained
g/t
Gold(ozs)
Tonnes
Grade
Contained
g/t
Gold(ozs)
AFGap - Fobinso Deposit
Oxide
Transition
Primary
0
0.0
0
10,000
0.5
100
35,870,000
1.1
1,277,900
180,000
0.6
3,600
60,000
0.6
1,100
24,460,000
0.9
696,700
180,000
0.6
3,600
60,000
0.6
1,200
60,330,000
1.0
1,974,700
20,000
0.7
500
30,000
0.9
700
28,430,000
0.8
729,600
Total 35,880,000
1.1
1,278,100
24,700,000
0.9
701,400
60,570,000
1.0
1,979,400
28,480,000
0.8
730,900
Fetish Deposit
Oxide
Transition
Primary
20,000
1.1
600
190,000
0.9
5,800
12,440,000
0.9
373,200
230,000
0.8
6,200
1,000,000
1.0
33,500
16,890,000
1.1
623,700
240,000
0.9
6,700
1,190,000
1.0
39,200
29,330,000
1.1
996,900
90,000
1.1
3,100
170,000
1.7
9,400
9,520,000
1.1
333,100
Total 12,650,000
0.9
379,500
18,110,000
1.1
663,300
30,760,000
1.1
1,042,800
9,780,000
1.1
345,600
Bokitsi Deposit
Oxide
Transition
Primary
30,000
3.6
3,300
50,000
3.5
5,700
640,000
3.7
77,300
130,000
1.6
6,600
170,000
2.4
13,100
1,290,000
2.7
112,900
160,000
2.0
9,900
220,000
2.7
18,800
1,930,000
3.1
190,200
240,000
1.1
8,300
460,000
1.2
18,300
2,190,000
2.0
143,000
Total 720,000
3.7
86,300
1,580,000
2.6
132,500
2,310,000
3.0
218,900
2,890,000
1.8
169,600
Chirawewa Deposit
Oxide
Transition
Primary
0
0.0
0
0
0.0
0
0
0.0
0
40,000
1.1
1,400
1,200,000
1.1
42,800
4,530,000
1.0
150,500
40,000
1.1
1,400
1,200,000
1.1
42,800
4,530,000
1.0
150,500
20,000
0.5
400
630,000
0.8
16,600
9,710,000
0.9
266,800
Total 0
0.0
0
5,770,000
1.0
194,700
5,770,000
1.0
194,700
10,360,000
0.9
283,800
Esuajah North Deposit
Oxide
Transition
Primary
110,000
1.2
4,400
400,000
1.0
12,500
16,410,000
0.9
476,800
60,000
0.8
1,500
240,000
0.9
6,500
18,070,000
0.8
484,500
170,000
1.1
5,900
640,000
0.9
19,000
34,480,000
0.9
961,300
0
0.5
100
10,000
0.6
200
3,630,000
0.9
104,500
Total 16,930,000
0.9
493,600
18,360,000
0.8
492,600
35,290,000
0.9
986,200
3,640,000
0.9
104,800
Esuajah South Deposit
Oxide
Transition
Primary
80,000
2.0
5,500
100,000
2.5
8,400
9,300,000
1.8
532,100
30,000
1.3
1,300
30,000
2.8
2,800
7,270,000
1.6
365,700
120,000
1.8
6,800
130,000
2.6
11,200
16,580,000
1.7
897,800
0
0.0
0
0
0.0
0
5,720,000
1.1
211,300
Total 9,490,000
1.8
546,000
7,340,000
1.6
369,800
16,830,000
1.7
915,800
5,720,000
1.1
211,300
Mampong Deposit
Oxide
Transition
Primary
0
0.0
0
0
0.0
0
0
0.0
0
0
0.0
0
0
0.0
0
0
0.0
0
0
0.0
0
0
0.0
0
0
0.0
0
1,170,000
0.8
29,300
1,010,000
0.8
26,200
6,450,000
1.0
201,500
Total 0
0.0
0
0
0.0
0
0
0.0
0
8,630,000
0.9
257,100
Dadieso Deposit
Oxide
Transition
Primary
0
0.0
0
0
0.0
0
0
0.0
0
0
0.0
0
0
0.0
0
0
0.0
0
0
0.0
0
0
0.0
0
0
0.0
0
1,410,000
1.5
67,400
830,000
1.4
38,300
3,030,000
1.5
147,100
Total 0
0.0
0
0
0.0
0
0
0.0
0
5,270,000
1.5
252,800
Grand Total
Oxide
Transition
Primary
240,000
1.8
13,700
760,000
1.3
32,500
74,670,000
1.1
2,737,300
660,000
1.0
20,600
2,700,000
1.1
99,700
72,510,000
1.0
2,434,000
900,000
1.2
34,300
3,460,000
1.2
132,200
147,170,000
1.1
5,171,300
2,960,000
1.1
109,100
3,140,000
1.1
109,700
68,680,000
1.0
2,137,000
Total 75,670,000
1.1
2,783,600
75,860,000
1.0
2,554,300
151,530,000
1.1
5,337,800
74,770,000
1.0
2,355,700
Note: All grades and ounces shown are cut grades and ounces

Note: All grades and ounces shown are cut grades and ounces

Totals may differ due to rounding errors

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ATTACHMENT 2

AFGAP FOBINSO Deposit

JORC Code (2012) Table 1

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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.

Drill holes included in the Mineral Resource
were sampled using close spaced Grade Control
(GC) drilling on a nominal 8m to 10m grid, and
Reverse Circulation (RC), and diamond drill (DD)
holes on a nominal 20m by 40m grid spacing. A
total of 4,890 holes were included in the
resource for a total 134,341m within the
resource wireframes. Holes were generally
angled at 60° towards grid south to optimally
intersect the mineralised zones. Grade control
holes were drilled vertically.

Drill hole collars were picked up and down hole
surveyed by qualified surveyors. RC samples
were collected by a riffle splitter at 1m intervals.
Diamond core was cut in half using a core saw
with sampling at 1m intervals, locally to
geological
boundaries.
All
samples
were
collected from the same side of the core.
Sampling and QAQC procedures were carried
out to industry standards.

Approximately 6% of all RC samples were sent
to ALS Minerals at Kumasi/Ghana for 24hr bottle
roll with AAS finish. All other RC samples were
analysed by 50g Fire Assay and AAS finish.
Diamond half core samples were sent to
Intertek Laboratories (Gh) Ltd at Tarkwa/Ghana
for 50gFire Assayand AAS finish.
Drilling
techniques

Drill type (eg core, reverse circulation, open-hole
hammer, rotary air blast, auger, Bangka, sonic,
etc) and details (eg core diameter, triple or
standard tube, depth of diamond tails, face-
sampling bit or other type, whether core is
oriented and if so, by what method, etc).

RC drilling comprising 105mm diameter face
sampling bit. Diamond drilling carried out with
HQ2 and NQ2 sized equipment.
Drill
sample
recovery

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

Measures taken to maximise sample recovery and
ensure representative nature of the samples.

Whether a relationship exists between sample
recovery and grade and whether sample bias may
have occurred due to preferential loss/gain of
fine/coarse material.

Recoveries from historical drilling are unknown.
Actual recoveries from PRU diamond drilling
recorded in the database and averaged 95.5%
with no significant issues noted.

RC samples were visually checked for recovery,
moisture and contamination.

No relationship exists between sample recovery
and grade.
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 holes were field logged by company
geologists. Weathering, lithology, alteration,
structure, mineralogy and veining information
were recorded. RC chips are glued to boards as
a visual reference of every hole.

Logging of diamond core additionally recorded
recovery, core strength, orientation, roughness,
and
infill
type.
Diamond
core
was
photographed.

All drill holes were logged in full.

Logging was qualitative and quantitative in
nature.
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.

HQ2 and NQ2 core was cut in half using a core
saw. All samples were collected from the same
side of the core.

RC samples were collected at the rig using riffle
splitters. Samples were predominantly dry. 1% of
samples were recorded as wet in the supplied
database in the ‘sampquality’ field and were

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Criteria JORC Code explanation Commentary

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.
removed from the resource composites.

Sampling of diamond core and RC chips uses
industry standard techniques. After drying the
sample is subject to a primary crush, then
pulverised so that 90% passes a -75um sieve.

Field QC procedures involved the use of certified
reference materials (1 in 20), and field duplicates
(1 in 20).

Field duplicates were taken on 1m composites
for RC using a riffle splitter.

Sample sizes are considered appropriate to
correctly represent the moderately nuggetty gold
mineralisation
based
on:
the
style
of
mineralisation, the thickness and consistency of
the intersections, the sampling methodology and
assay value ranges for Au.
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.

The analytical techniques used Fire Assay on 50g
samples or BLEG bottle roll on 1kg samples both
with AAS finish. This method approaches total
dissolution of most minerals.

No geophysical tools were used to determine any
element concentrations used in this resource
estimate.

Sample preparation checks for fineness were
carried out by the laboratory as part of internal
procedures to ensure the grind size of 90%
passing 75µm was being attained. Laboratory
QAQC includes the use of internal standards
using certified reference material, and pulp
replicates.
Certified
reference
materials
demonstrate that sample assay values are
accurate.

The QAQC results confirm the suitability of the
drilling data for use in the Mineral Resource
estimation.
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.

The PRU logging process involves placing RC drill
samples for each 1m interval onto a board to
form a visual log of the entire hole. PRU senior
exploration personnel verified the significant
intersections by comparing the returned assay
results to the photographs of the ‘chip boards’.

RPM has not independently verified significant
intersections of mineralisation.

A total of 4 RC holes have been twinned by DD
to test down hole contamination in wet
intervals.

Primary data is entered on hard copies in the
field,
then
entered
digitally
using
LogChiefSoftware (Maxwell GeoServices). This
data is directly imported into the central
Datashed database (Maxwell GeoServices).

Assay values that were below detection limit
were adjusted to equal half of the detection
limit value. Intervals with no samples were left

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Criteria JORC Code explanation Commentary

Discuss any adjustment to assay data.
blank in the database (updated from the -9
value used by PRU).
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.

Prior to 2012, a local grid, including baseline,
was established at Edikan by Cluff Plc using
qualified surveyors. Qualified surveyors were
used to locate all drill collars in local grid co-
ordinates.

PRU drill holes are surveyed down hole at 10m
to 30m intervals using either Reflex or Flexit
multi-shot equipment. Historical RC holes have
not been down hole surveyed and are assumed
to be straight. Historical diamond holes were
down hole surveyed using either acid tubes or a
single shot camera.

For recent drill programs, collars have been
located in UTM, WGS84, Zone 30N co-ordinates
and transformed to local grid. True azimuths
were converted to local by subtracting 43 from
the true value.

Local RL elevations were adjusted by adding
1,000m to avoid negative values. This was not
done for the previous Mineral Resource
estimates.

Topographic surface is based on survey points of
the current pit surveyed during mining, and
merged with the regional 2010 topographic
surface. The quality of the surface immediately
above the mineralised lodes has been surveyed
with a high degree of confidence by Mine
Surveyors.
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 nominal resource drill hole spacing is 20m
by 20m. Grade control holes are spaced at 8m
by 8m or at 10m by 10m.

The mineralised domains have demonstrated
sufficient continuity in both geological and
grade continuity to support the definition of
Mineral Resource, and the classifications
applied under the 2012 JORC Code.

Samples have been composited to 2m lengths
using best fit techniques. Residual sample
lengths were excluded.
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.

Drill holes are angled to grid north or south,
which is approximately perpendicular to the
orientation of the mineralised trends.

No orientation based sampling bias has been
identified in the data.
Sample security
The measures taken to ensure sample security.

Chain of custody is managed by PRU. Samples
are stored on site and collected by Intertek and
ALS employees. PRU employees have no further
involvement in the preparation or analysis of
the samples.
Audits
or

The results of any audits or reviews of sampling

A review of sampling techniques was carried out

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Criteria JORC Code explanation Commentary
reviews techniques and data. on each site visit by RPM, the most recent in
2010.

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.

The deposit is located within the Nanankaw
Mining Lease ML1110/1994 which is wholly
owned by PRU.

The tenements are in good standing.
Exploration
done by other
parties

Acknowledgment and appraisal of exploration by
other parties.

Previous companies to have held the ground
include Cluff Mining and Ashanti Goldfields.
Exploration activities included RC and Diamond
drilling.
Geology
Deposit type, geological setting and style of
mineralisation.

The Edikan deposits occur near the western
flank of the Ashanti Greenstone Belt along the
Obuasi-Akropong gold corridor. The Central
Ashanti property is underlain principally by
Paleoproterozoic Birimian metasediments of the
Kumasi-Afema basin, positioned between the
Ashanti and Sefwi Greenstone Belts. The flysch
type
metasediments
consist
of
dacitic
volcaniclastics, greywackes plus argillaceous
(phyllitic) sediments, intensely folded, faulted
and metamorphosed to upper greenschist facies.
Minor cherty and manganiferous exhalative
sediments are locally present, and graphitic
schists coincide with the principal shear (thrust)
zones. Numerous small Basin-type or Cape
Coast-type
granitoids
have
intruded
the
sediments along several regional structures.
Gold mineralisation has been identified in a
single granitoid intrusive over a strike of 2km
between Abnabna and Fobinso. Most of the
gold mineralisation is contained within 5 zones
which range from 30m to 140m in width and
have a moderate to steep northerly plunge.
Mineralisation is associated with minor quartz
veining and sulphides, which are predominantly
pyrite.
Associated
host
sediment
Au
mineralisation occurs along the margins of the
granite.
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:
easting and northing of the drill hole collar
elevation or RL (Reduced Level – elevation
above sea level in metres) of the drill hole collar
dip and azimuth of the hole

Drill hole locations are shown on the map within
the body of this Mineral Resource report.
Significant drill hole intersections have been
previously reported to the ASX.

In the opinion of PRU all material drill results
have been adequately reported.

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Criteria JORC Code explanation Commentary
down hole length and interception depth
hole length
If the exclusion of this information is justified on
the basis that the information is not Material and
this
exclusion
does
not
detract
from
the
understanding of the report, the Competent Person
should clearly explain why this is the case.
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.

Exploration drill results have been previously
reported by PRU.

No aggregation of intercepts was carried out.
Drilling intervals are predominantly even 1m, or
composites of 2m or 4m. Mineralised composites
are re-split to 1m for re-assay.

Metal equivalent values are not being reported.
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’).

Drill holes are angled to local grid which is
approximately perpendicular to the orientation of
the mineralised trend.
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.

A plan showing AAF drilling is included within
this Mineral Resource report.
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.

Drill holes have been accurately located by PRU
surveyors using the local grid system.

Exploration
results
have
been
previously
reported to the ASX and are not being reported
for this Mineral Resource update.
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.

Ongoing bulk density determinations have been
conducted by PRU using mine grab samples and
existing stored drill core. Ongoing grade control
drilling is conducted as the deposit is being
actively mined.
Further work
The nature and scale of planned further work (e.g.
tests for lateral extensions or depth extensions or

No further exploration drilling is planned at the
deposit. Ongoing grade control drilling is
conducted to define the mineralised lodes as

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Criteria JORC Code explanation Commentary
large- scale step-out drilling).

Diagrams clearly highlighting the areas of possible
extensions,
including
the
main
geological
interpretations and future drilling areas, provided
this information is not commercially sensitive.
the deposit is being mined.

Along strike and down dip lode extensions have
been highlighted in the body of this Mineral
Resource report.

Section 3 Estimation and Reporting of Mineral Resources

Criteria JORC Code explanation Commentary
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.

Data validation procedures used.

The data base is systematically audited by PRU
geologists. All drill logs are validated digitally by
the database geologist once assay results are
returned from the laboratory. In 2010, RUL
reviewed the logging of several holes and
validated the records in the database against
the drill core and logging boards. No significant
errors were noted.

RPM validated the 2013 data against previous
data from the 2011 estimate. The dip and depth
intervals of down hole surveys for a number of
drill holes differed from the 2011 database. PRU
instructed RPM to use the 2011 data for those
holes as the errors were attributed to
converting of the PRU current database to
Datashed format.

RPM noted that recent supplied grade control
information
contained
duplicate
hole_id’s.
These have been documented and were sent to
PRU. All the affected hole numbers were
excluded from the current resource update.

RPM alsoperformed data audits in Surpac.
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.

Site visits have been conducted by David Price
(RUL) in January 2007, Paul Payne (RUL) in
January 2008, and Aaron Green (RPM) in
October 2010. On each occasion, the deposit
area, the core logging and sampling facility, and
drilling and sampling operations were viewed.
Aaron Green inspected the main laboratory
used by PRU. Notes and photos were taken.
Discussions were held with site personnel
regarding drilling and sampling procedures. No
major issues were encountered.
Geological
interpretation

Confidence in (or conversely, the uncertainty of)
the geological interpretation of the mineral
deposit.

Nature of the data used and of any assumptions
made.

The effect, if any, of alternative interpretations on
Mineral Resource estimation.

The use of geology in guiding and controlling
Mineral Resource estimation.

The factors affecting continuity both of grade and
geology.

The confidence in the geological interpretation
is considered to be good and is based on good
quality drilling.

The
deposit
consists
of
steeply
dipping
mineralised granite lodes. Infill drilling has
supported and refined the model and the
current interpretation is considered robust.

Outcropping of mineralisation and host rocks
within the open pit currently being mined
confirm the geometry of the mineralisation.

Infill drilling has confirmed geological and grade
continuity.

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Criteria JORC Code explanation Commentary
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 AAF resource area extends over a strike
length of 2,000m (from 25,750mE – 27,750mE),
has an outcropping (within the existing pit)
average width of 100m (13,680mN – 13,780mN)
and includes the 600m vertical interval from
1,150mRL to 550mRL.
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 availability of check estimates, previous
estimates and/or mine production records and
whether the Mineral Resource estimate takes
appropriate account of such data.

The assumptions made regarding recovery of by-
products.

Estimation of deleterious elements or other non-
grade variables of economic significance (eg
sulphur for acid mine drainage characterisation).

In the case of block model interpolation, the block
size in relation to the average sample spacing and
the search employed.

Any assumptions behind modelling of selective
mining units.

Any assumptions about correlation between
variables.

Description of how the geological interpretation

Using parameters derived from modelled
variograms, Ordinary Kriging (OK) was used to
estimate average block grades within all
domains.

Surpac software was used for the estimations.

Top-cuts ranging between 10g/t to 30g/t were
applied to selected domains and based on
statistical analysis. A total of 86 samples were
cut.

The parent block dimensions used were 10m NS
by 10m EW by 10m vertical with sub-cells of
2.5m by 2.5m by 2.5m. The parent block size
was
selected
on
the
basis
of
being
approximately 50% of the average drill hole
spacing in the deposit.

RPM
has
completed
numerous
Mineral
Resource estimates for the deposit since 2009.
Each successive update was based on the
previous estimate. Mine reconciliation figures
show that reconciliation is +8% for the AAF
project to date.

No assumptions have been made regarding
recovery of by-products.

No estimation of deleterious elements was
carried out. Only Au was interpolated into the
block model.

An orientated ‘ellipsoid’ search was used to
select data and was based on parameters taken
from the variography or the observed lode
geometry. Three passes were used for each
domain. The first pass used a range of 30m, with
a minimum of 10 samples. For the second pass,
the range was extended to 60m, with a
minimum of 6 samples. For the final pass, the
range was extended to 250m, with a minimum
of 2 samples. A maximum of 40 samples was
used for all 3 passes with a maximum of 6
samples per drill hole.

Selective mining units were not modelled in the
Mineral Resource model. The block size used in
the model was based on drill sample spacing
and lode orientation.

Only Au assay data was available, therefore
correlation analysis was not possible.

The deposit mineralisation was constrained by
wireframes constructed using a 0.2g/t Au cut-off
grade in association with logged lithology codes.
The
wireframes
were
applied
as
hard
boundaries in the estimate.

Statistical analysis was carried out on data from
28 lodes. The high coefficient of variation and the
scattering of high grade values observed on the
histogram for some of the lodes suggested that
high grade cuts were required if linear grade
interpolation was to be carried out. As a result
highgrade cuts rangingbetween 10g/t to 30g/t

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Criteria JORC Code explanation Commentary
was used to control the resource estimates.

Discussion of basis for using or not using grade
cutting or capping.

The process of validation, the checking process
used, the comparison of model data to drill hole
data, and use of reconciliation data if available.
were applied to selected domains, resulting in a
total of 86 samples being cut.

A three step process was used to validate the
model. A qualitative assessment was completed
by slicing sections through the block model in
positions coincident with drilling. A quantitative
assessment of the estimate was completed by
comparing the average Au grades of the
composite file input against the Au block model
output for all the resource objects. A trend
analysis was completed by comparing the
interpolated blocks to the sample composite
data within the granite domain. This analysis
was completed for 20m eastings and 10m bench
heights.
Validation
plots
showed
good
correlation between the composite grades and
the block model grades.
Moisture
Whether the tonnages are estimated on a dry
basis or with natural moisture, and the method of
determination of the moisture content.

Tonnages and grades were estimated on a dry in
situ basis. No moisture values were reviewed.
Cut-off
parameters

The basis of the adopted cut-off grade(s) or
quality parameters applied.

The Mineral Resource has been reported at a
0.4g/t Au cut-off based on assumptions about
economic cut-off grades for open pit mining.
PRU are currentlyminingthe AAF deposit.
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.

The AAF deposit is currently being mined using
open pit techniques.
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.

Extensive
metallurgical
test-work
was
completed on material from a number of
deposits within Edikan Project area, by AMMTEC
Pty Ltd in Perth for Cluff Plc in the early 1990’s.
This focused on CIL test-work on both oxide and
sulphide material and later to heap leach.
Preliminary amalgamation
and
cyanidation
results using bottle roll methodology confirmed
the free milling nature of both the oxide and
granite mineralisation.

Metallurgical test-work was undertaken by PRU
in 2011 aspart of the DFS.
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
reasonableprospectsfor eventual economic

The Project is not subject to any environmental
liabilities
except
for
a
progressive
decommissioning and reclamation plan for the
closed Ayanfuri heapleach mine.

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Criteria JORC Code explanation Commentary
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.
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.

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.

Discuss assumptions for bulk density estimates
used in the evaluation process of the different
materials.

Bulk density values were originally determined
at AAF from direct measurement of 738
diamond core samples of which 360 were
conducted in-house by PRU and 378 completed
by commercial laboratories.

A recent study by PRU determined that the
current density assigned to fresh granite was
likely too high. This assumption was based on a
better understanding of the granite lodes from
open pit mining activities which suggested the
material should be less dense than originally
expected. A program of submitting existing drill
core for analysis was instigated in early 2014. A
total of 254 grab samples from the open pit and
261 core samples were sent to commercial
laboratories for analysis. A total of 130 core
samples were sent to Intertek, and 131 core
samples and all the grab samples sent to ALS.
Results suggested the fresh granite material had
a density in the order of 2.7t/m3 and this has
been assigned to this material type in the
current RPM block model.

Measurements were determined by wax coating
samples and immersing in water.

RPM recommends an ongoing program of
submitting grab samples to Intertek for analysis.
Suitable core samples from any future diamond
drilling programs should be selectively sent for
analysis.
Classification
The basis for the classification of the Mineral
Resources into varying confidence categories.

The
Mineral
Resource
was
classified
as
Measured, Indicated and Inferred Mineral
Resource. The Measured portion of the
resource was defined where the drill spacing
was predominantly at 20m by 20m, and
continuity of mineralisation was robust. The
portion of the deposit where the drill spacing
was generally greater than 20m by 20m but still
demonstrates good lode and grade continuity
was classified as Indicated Mineral Resource.
The portions of the deposit classified as Inferred
include poorly tested areas of the main zones,
small zones peripheral to the main structures
which are defined by four or less intersections
with no clear lateral continuity, and zones of
increased complexity which require more
detailed information.

The input data is comprehensive in its coverage
of the mineralisation and does not favour or
misrepresent
in-situ
mineralisation.
The
definition of mineralised zones is based on high
levelgeological understanding producinga

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Criteria JORC Code explanation Commentary

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).

Whether the result appropriately reflects the
Competent Person’s view of the deposit.
robust model of mineralised domains. This
model has been confirmed by infill drilling and
mining which supported the interpretation.
Validation of the block model shows good
correlation of the input data to the estimated
grades.

The Mineral Resource estimate appropriately
reflects the view of the Competent Person.
Audits
or
reviews

The results of any audits or reviews of Mineral
Resource estimates.

Internal audits have been completed by RPM
which
verified
the
technical
inputs,
methodology, parameters and results of the
estimate.
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 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.

These statements of relative accuracy and
confidence of the estimate should be compared
with production data, where available.

The AAF Mineral Resource estimate has been
reported with a high degree of confidence. The
lode geometry and continuity has been robustly
interpreted to reflect the applied level of
Measured and Indicated Mineral Resource. The
data quality is good and the drill holes have
detailed logs produced by qualified geologists.
A recognised laboratory has been used for all
analyses.

The Mineral Resource statement relates to
global estimates of tonnes and grade.

The deposit is currently being mined using open
pit techniques. Mine reconciliation to date
shows 8% more tonnes mined when compared
to the Mineral Resource model.

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ATTACHMENT 3

Fetish Deposit

JORC Code (2012) Table 1

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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.

Samples at Fetish were collected using drilling
techniques such as Reverse Circulation (RC) and
Diamond Drilling (DD). Holes were generally
angled at between 45° and 60° towards grid
west or east to optimally intersect the
mineralised zones. Some RC drill holes have
diamond tails.

RC samples were collected as 4m composites
until potential mineralisation was expected at
which time samples were collected at 1m
intervals from a rig mounted cyclone into large
numbered plastic bags. Recently, PRU drilling
has used 2m composite samples, and then 1m
samples
through
potential
mineralisation.
Diamond core was generally sampled at even
1m intervals. Sampling and QAQC procedures
were carried out to industry standards.

Rig mounted riffle splitters were used to split RC
samples and minimise bias. Diamond core was
cut in half using a diamond saw and the right
hand side of the core was always submitted for
analysis with the left side being stored in trays
on site.

Approximately 5% of all RC samples were sent
to the Intertek (formerly TWL) laboratory for
24hr bottle roll with AAS finish. All other RC
samples and Diamond half core were analysed
by 50g Fire Assay and AAS finish. Samples were
sent to Intertek Laboratories (Gh) Ltd at
Tarkwa/Ghana (24%), ALS (35%), TWL (18%),
and SGS laboratories(2%).
Drilling
techniques

Drill type (eg core, reverse circulation, open-hole
hammer, rotary air blast, auger, Bangka, sonic,
etc) and details (eg core diameter, triple or
standard tube, depth of diamond tails, face-
sampling bit or other type, whether core is
oriented and if so, by what method, etc).

RC drilling comprising 105mm diameter face
sampling bit. Diamond drilling carried out with
HQ2 and NQ2 sized equipment.
Drill
sample
recovery

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

Measures taken to maximise sample recovery and
ensure representative nature of the samples.

Whether a relationship exists between sample
recovery and grade and whether sample bias may
have occurred due to preferential loss/gain of
fine/coarse material.

Recoveries from historical drilling are unknown.
Actual recoveries from PRU diamond drilling
recorded in the database and averaged 93%
with no significant issues noted.

RC samples were visually checked for recovery,
moisture and contamination.

No relationship exists between sample recovery
and grade.
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 holes were field logged by company
geologists. Weathering, lithology, alteration,
structure, mineralogy and veining information
were recorded. RC chips are glued to boards as
a visual reference of every hole.

Logging of diamond core additionally recorded
recovery, core strength, orientation, roughness,
and
infill
type.
Diamond
core
was
photographed.

All drill holes were logged in full.

Logging was qualitative and quantitative in
nature.
Sub-sampling
techniques and

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

HQ2 and NQ2 core was cut in half using a core
saw. All samples were collected from the same
side of the core.

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Criteria JORC Code explanation Commentary
sample
preparation

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 samples were collected at the rig using riffle
splitters. Samples were predominantly dry.

Sampling of diamond core and RC chips uses
industry standard techniques. After drying the
sample is subject to a primary crush, then
pulverised so that 90% passes a -75um sieve.

Field QC procedures involved the use of certified
reference materials (1 in 20), and field duplicates
(1 in 20).

Field duplicates were taken on 1m composites
for RC using a riffle splitter.

Sample sizes are considered appropriate to
correctly represent the moderately nuggetty gold
mineralisation
based
on:
the
style
of
mineralisation, the thickness and consistency of
the intersections, the sampling methodology and
assay value ranges for Au.
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.

The analytical techniques used Fire Assay on 50g
pulp samples with AAS finish. Historically, RC
samples were subject to BLEG bottle roll on 1kg
samples with AAS finish. This method
approaches total dissolution of most minerals.

No geophysical tools were used to determine any
element concentrations used in this Mineral
Resource estimate.

Sample preparation checks for fineness were
carried out by the laboratory as part of internal
procedures to ensure the grind size of 90%
passing 75µm was being attained. Laboratory
QAQC includes the use of internal standards
using certified reference material, and pulp
replicates.
Certified
reference
materials
demonstrate that sample assay values are
accurate.

The QAQC results confirm that acceptable levels
of accuracy and precision have been established.
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.

The PRU logging process involves placing RC drill
samples for each 1m interval onto a board to
form a visual log of the entire hole. PRU senior
exploration personnel verified the significant
intersections by comparing the returned assay
results to the photographs of the ‘chip boards’.

Twinned holes have not been drilled.

Primary data is entered on hard copies in the
field,
then
entered
digitally
using
LogChiefSoftware (Maxwell GeoServices). This
data is directly imported into the central
Datashed database (Maxwell GeoServices).

Assay values that were below detection limit
were adjusted to equal half of the detection
limit value. Intervals with no samples were left
blank in the database (updated from the -9
value used by PRU).

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Criteria JORC Code explanation Commentary

Discuss any adjustment to assay data.
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.

Prior to 2012, a local grid, including baseline,
was established at Edikan by Cluff Plc using
qualified surveyors. PRU surveyors have since
been used to locate all drill collars in local grid
co-ordinates.

The majority of PRU drill holes are surveyed
down hole at 10m to 30m intervals using either
Reflex or Flexit multi-shot equipment. Historical
RC holes have not been down hole surveyed and
are assumed to be straight. Historical diamond
holes were down hole surveyed using either
acid tubes or a single shot camera at 60m
intervals and at the end of the hole.

For recent drill programs, collars have been
located in UTM, WGS84, Zone 30N co-ordinates
and transformed to local grid. True azimuths
were converted to local by subtracting 43 from
the true value.

Local RL elevations were adjusted by adding
1,000m to avoid negative values. This was not
done for the initial Mineral Resource estimates.

Topographic surface is based on survey points of
the existing open pits and drill collars, and
merged with the regional topographic surface.
The quality of the surface immediately above
the mineralised lodes has been surveyed with a
high degree of confidence.
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 nominal drill hole spacing is 20m by 20m.

The drill hole spacing and distribution is
considered sufficient to establish the degree of
continuity appropriate for the Mineral Resource
estimation procedures.

Samples were composited to 4m in zones
previously identified as barren, otherwise
composites at 2m intervals with 1m sampling
intervals through expected mineralised zones.
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.

Drill holes are angled to grid west or east, which
is
approximately
perpendicular
to
the
orientation of the mineralised trends.

Due to the orientation of drill holes to the east
or west, several holes have been drilled down
dip within an east dipping sediment lode.
Adjacent drill holes orientated to the west have
shown that sampling bias from those two holes
is not a significant issue.
Sample security
The measures taken to ensure sample security.

Chain of custody is managed by PRU. Samples
are stored on site and collected by laboratory
employees. PRU employees have no further
involvement in the preparation or analysis of
the samples.
Audits
or
reviews

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

A review of sampling techniques was carried out
on each site visit by RPM, the most recent in
2010.

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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.

The deposit is located within the Nanankaw
Mining Lease ML1110/1994 which is wholly
owned by PRU.

The Mining Lease was granted for a term of 15
years and expires 30 December 2024

The tenements are in good standing.
Exploration
done by other
parties

Acknowledgment and appraisal of exploration by
other parties.

Previous companies to have held the ground
include Cluff Mining and Ashanti Goldfields.
Exploration activities included RC and Diamond
drilling.
Geology
Deposit type, geological setting and style of
mineralisation.

The Edikan deposits occur near the western
flank of the Ashanti Greenstone Belt along the
Obuasi-Akropong gold corridor. The Central
Ashanti property is underlain principally by
Paleoproterozoic Birimian metasediments of the
Kumasi-Afema basin, positioned between the
Ashanti and Sefwi Greenstone Belts. The flysch
type
metasediments
consist
of
dacitic
volcaniclastics, greywackes plus argillaceous
(phyllitic) sediments, intensely folded, faulted
and metamorphosed to upper greenschist facies.
Minor cherty and manganiferous exhalative
sediments are locally present, and graphitic
schists coincide with the principal shear (thrust)
zones. Numerous small Basin-type or Cape
Coast-type
granitoids
have
intruded
the
sediments along several regional structures.
Gold mineralisation has been identified within,
or is associated with, the margins of a granitoid
intrusive which has intruded into a sequence of
metasediments. Mineralisation is typically 40-
170m wide and remains open at depth.
Mineralisation is associated with minor quartz
veining and sulphides which are predominantly
pyrite.
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:
easting and northing of the drill hole collar
elevation or RL (Reduced Level – elevation
above sea level in metres) of the drill hole collar
dip and azimuth of the hole
down hole length and interception depth
hole length
If the exclusion of this information is justified on
the basis that the information is not Material and
this
exclusion
does
not
detract
from
the
understanding of the report, the Competent Person
should clearly explain why this is the case.

Exploration results are not being reported. Drill
hole locations are shown on the map within the
body of this Mineral Resource report. Significant
drill hole intersections have been previously
reported to the ASX.

In the opinion of PRU all material drill results
have been adequately reported.
Data In
reporting
Exploration
Results,
weighting

Exploration drill results are not being reported.

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Criteria JORC Code explanation Commentary
aggregation
methods
averaging techniques, maximum and/or minimum
grade truncations (e.g. cutting of high grades) and
cut-off grades are usually Material and should be
stated.
Where aggregate intercepts incorporate short
lengths of high grade results and longer lengths of
low grade results, the procedure used for such
aggregation should be stated and some typical
examples of such aggregations should be shown in
detail.

The assumptions used for any reporting of metal
equivalent values should be clearly stated.

No aggregation of intercepts was carried out.
Drilling intervals are predominantly even 1m, or
composites of 2m or 4m. Mineralised composites
are re-split to 1m for re-assay.

Metal equivalent values are not being reported.
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’).

Drill holes are angled to local grid which is
approximately perpendicular to the orientation of
the mineralised trend.
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.

A plan showing Fetish drilling is included within
this Mineral Resource report.
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.

Drill holes have been accurately located by PRU
surveyors using the local grid system.

Exploration
results
have
been
previously
reported to the ASX and are not being reported
for this Mineral Resource update.
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.

Ongoing bulk density determinations have been
conducted by PRU using existing stored drill
core.
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.

Further work at the deposit will be guided by
the results of pit optimisation analysis of the
Mineral Resource.

Along strike and down dip lode extensions have
been highlighted in the body of this Mineral
Resource report.

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Section 3 Estimation and Reporting of Mineral Resources

Criteria JORC Code explanation Commentary
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.

Data validation procedures used.

The data base is systematically audited by PRU
geologists. All drill logs are validated digitally by
the database geologist once assay results are
returned from the laboratory. In 2010, RUL
reviewed the logging of several holes and
validated the records in the database against
the drill core and logging boards. No significant
errors were noted.

RPM performed data audits in Surpac.
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.

Site visits have been conducted by David Price
(RUL) in January 2007, Paul Payne (RUL) in
January 2008, and Aaron Green (RPM) in
October 2010. On each occasion, the deposit
area, the core logging and sampling facility, and
drilling and sampling operations were viewed.
Aaron Green inspected the main laboratory
used by PRU. Notes and photos were taken.
Discussions were held with site personnel
regarding drilling and sampling procedures. No
major issues were encountered.
Geological
interpretation

Confidence in (or conversely, the uncertainty of)
the geological interpretation of the mineral
deposit.

Nature of the data used and of any assumptions
made.

The effect, if any, of alternative interpretations on
Mineral Resource estimation.

The use of geology in guiding and controlling
Mineral Resource estimation.

The factors affecting continuity both of grade and
geology.

The confidence in the geological interpretation
is considered to be good and is based on good
quality drilling.

The
deposit
consists
of
steeply
dipping
mineralised granite and sediment lodes which
have been interpreted based on logging of
samples taken at regular intervals from angled
drill holes.
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 Fetish Mineral Resource area extends over a
strike length of 550m (from 4,990mN –
5,540mN), has a typical width of 140m. It
includes the 595m vertical interval from
1,180mRL to 585mRL.
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.

Using parameters derived from modelled
variograms, Ordinary Kriging (OK) was used to
estimate average block grades within the
deposit.

Surpac software was used for the estimations.

A top-cut of 25g/t was appropriate for granite
hosted domains and a top-cut of 10g/t was used
for sediment hosted domains. A total of 23
samples were cut.

The parent block dimensions used were 10m NS
by 5m EW by 10m vertical with sub-cells of 2.5m
by 1.25m by 2.5m. The parent block size was
selected on the basis of being approximately
50% of the average drill hole spacing in the
deposit.

Historicalproduction records were available for

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Criteria JORC Code explanation Commentary

The availability of check estimates, previous
estimates and/or mine production records and
whether the Mineral Resource estimate takes
appropriate account of such data.

The assumptions made regarding recovery of by-
products.

Estimation of deleterious elements or other non-
grade variables of economic significance (eg
sulphur for acid mine drainage characterisation).

In the case of block model interpolation, the block
size in relation to the average sample spacing and
the search employed.

Any assumptions behind modelling of selective
mining units.

Any assumptions about correlation between
variables.

Description of how the geological interpretation
was used to control the resource estimates.

Discussion of basis for using or not using grade
cutting or capping.
shallow oxide pits completed in the 1990’s.

RPM
has
completed
numerous
Mineral
Resource estimates for the deposit since 2009.
Each successive update was based on the
previous estimate and extended with additional
drilling data.

No assumptions have been made regarding
recovery of by-products.

No estimation of deleterious elements was
carried out. Only Au was interpolated into the
block model.

An orientated ‘ellipsoid’ search was used to
select data and was based on parameters taken
from the variography or the observed lode
geometry. Three passes were used for each
domain. The first pass used a range of 40m, with
a minimum of 10 samples. For the second pass,
the range was extended to 80m, with a
minimum of 6 samples. For the final pass, the
range was extended to 200m, with a minimum
of 1 sample. A maximum of 40 samples was
used for all 3 passes.

Selective mining units were not modelled in the
Mineral Resource model. The block size used in
the model was based on drill sample spacing
and lode orientation.

Only Au assay data was available, therefore
correlation analysis was not possible.

The deposit mineralisation was constrained by
wireframes constructed using a 0.2g/t Au cut-off
grade in association with logged lithology codes.
The
wireframes
were
applied
as
hard
boundaries in the estimate.

Statistical analysis was carried out on data from
30 lodes. The high coefficient of variation and the
scattering of high grade values observed on the
histogram for some of the objects suggested that
high grade cuts were required if linear grade
interpolation was to be carried out. As a result
high grade cuts of 25g/t for granite domains, and
10g/t for sediment domains were applied,
resulting in a total of 23 samples being cut.

A three step process was used to validate the
model. A qualitative assessment was completed
by slicing sections through the block model in
positions coincident with drilling. A quantitative
assessment of the estimate was completed by
comparing the average Au grades of the
composite file input against the Au block model
output for all the resource objects. A trend
analysis was completed by comparing the
interpolated blocks to the sample composite
data within the granite domain. This analysis
was completed for 20m northings and 20m
bench heights. Validation plots showed good
correlation between the composite grades and
the block model grades.

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Criteria JORC Code explanation Commentary

The process of validation, the checking process
used, the comparison of model data to drill hole
data, and use of reconciliation data if available.
Moisture
Whether the tonnages are estimated on a dry
basis or with natural moisture, and the method of
determination of the moisture content.

Tonnages and grades were estimated on a dry in
situ basis. No moisture values were reviewed.
Cut-off
parameters

The basis of the adopted cut-off grade(s) or
quality parameters applied.

The Mineral Resource has been reported at a
0.4g/t Au cut-off based on assumptions about
economic cut-off grades for open pit mining.
PRU are currently mining the AAF deposit which
formspart of the Edikan Mine Project area.
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.

The AAF deposit is currently being mined using
open pit techniques. The Fetish deposit is of
similar style to that of the AAF deposit and could
be mined using both open pit and underground
methods.
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.

Metallurgical test-work was undertaken by PRU
in 2011 as part of the DFS.

Mineralisation characteristics of the granite
hosted mineralisation at Fetish are similar to the
mineralisation being process at the Edikan
operation.
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 Project is not subject to any environmental
liabilities
except
for
a
progressive
decommissioning and reclamation plan for the
closed Ayanfuri heap leach mine.
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.

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

A recent study by PRU determined that the
previous densities assigned to fresh granite and
sediment material were probably too high. A
program of submitting existing drill core for
analysis was instigated in June 2014. A total of
485 existing drill core samples were sent to
commercial laboratories for analysis. Results
suggested the fresh granite material had a
density in the order of 2.7t/m3and that fresh

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Criteria JORC Code explanation Commentary
within the deposit.

Discuss assumptions for bulk density estimates
used in the evaluation process of the different
materials.
sediment had a density of 2.77t/m3. These
values were used in the current RPM block
model.

Measurements were determined by wax coating
samples and immersing in water.

RPM recommends an ongoing program of
submitting suitable core samples for density
analysis from any future diamond drilling
programs.
Classification
The basis for the classification of the Mineral
Resources into varying confidence categories.

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).

Whether the result appropriately reflects the
Competent Person’s view of the deposit.

Mineral Resources were classified in accordance
with the Australasian Code for the Reporting of
Exploration Results, Mineral Resources and Ore
Reserves (JORC, 2012). The Mineral Resource
was classified as Measured, Indicated and
Inferred Mineral Resource on the basis of data
quality, sample spacing, and lode continuity.

The Measured portion of the Mineral Resource
was defined where the drill spacing was
predominantly at 20m by 20m, and continuity of
mineralisation was robust.

The Indicated portion of the Mineral Resource
was defined where the drill spacing was
predominantly at 40m by 20m, and continuity of
mineralisation was evident.

The portions of the deposit classified as Inferred
Mineral Resource include sparsely tested depth
extensions of the main zones, and small zones
peripheral to the main structures which appear
to have poor clear lateral continuity or are
untested.

The input data is comprehensive in its coverage
of the mineralisation and does not favour or
misrepresent
in-situ
mineralisation.
The
definition of mineralised zones is based on high
level geological understanding producing a
robust model of mineralised domains. This
model has been confirmed by infill drilling which
supported the interpretation. Validation of the
block model shows good correlation of the input
data to the estimated grades.

The Mineral Resource estimate appropriately
reflects the view of the Competent Person.
Audits
or
reviews

The results of any audits or reviews of Mineral
Resource estimates.

Internal audits have been completed by RPM
which
verified
the
technical
inputs,
methodology, parameters and results of the
estimate.
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

The Fetish Mineral Resource estimate has been
reported with a high degree of confidence. The
lode geometry and continuity has been
interpreted to reflect the Mineral Resource
classification. The data quality is good and the

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Criteria JORC Code explanation Commentary
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 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.

These statements of relative accuracy and
confidence of the estimate should be compared
with production data, where available.
drill holes have detailed logs produced by
qualified geologists. Recognised laboratories
have been used for all analyses.

The Mineral Resource statement relates to
global estimates of tonnes and grade.

The deposit is not currently being mined.
Historical production records are available for
the deposit.

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ATTACHMENT 4

Bokitsi Deposit

JORC Code (2012) Table 1

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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.

Samples at Bokitsi were collected using drilling
techniques such as Reverse Circulation (RC) and
Diamond Drilling (DD). Holes were generally
angled at between 45° and 60° towards grid
west to optimally intersect the mineralised
zones. Some RC drill holes have diamond tails.

RC samples were collected as 4m composites
until potential mineralisation was expected at
which time samples were collected at 1m
intervals from a rig mounted cyclone into large
numbered plastic bags. Recent PRU drilling has
used 2m composite samples, and then 1m
samples
through
potential
mineralisation.
Diamond core was generally sampled at even
1m intervals. Sampling and QAQC procedures
were carried out to industry standards.

Rig mounted riffle splitters were used to split RC
samples and minimise bias. Diamond core was
cut in half using a diamond saw and the right
hand side of the core was always submitted for
analysis with the left side being stored in trays
on site.

Approximately 5% of all RC samples were sent
to the Intertek (formerly TWL) laboratory for
24hr bottle roll with AAS finish. All other RC
samples and Diamond half core were analysed
by 50g Fire Assay and AAS finish. Samples were
sent to Intertek Laboratories (Gh) Ltd at
Tarkwa/Ghana (24%), ALS (35%), TWL (18%),
and SGS laboratories(2%).
Drilling
techniques

Drill type (eg core, reverse circulation, open-hole
hammer, rotary air blast, auger, Bangka, sonic,
etc) and details (eg core diameter, triple or
standard tube, depth of diamond tails, face-
sampling bit or other type, whether core is
oriented and if so, by what method, etc).

RC drilling comprising 105mm diameter face
sampling bit. Diamond drilling carried out with
HQ2 and NQ2 sized equipment.
Drill
sample
recovery

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

Measures taken to maximise sample recovery and
ensure representative nature of the samples.

Whether a relationship exists between sample
recovery and grade and whether sample bias may
have occurred due to preferential loss/gain of
fine/coarse material.

Recoveries from historical drilling are unknown.
Actual recoveries from PRU diamond drilling
recorded in the database and averaged 93%
with no significant issues noted.

RC samples were visually checked for recovery,
moisture and contamination.

No relationship exists between sample recovery
and grade.
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 holes were field logged by company
geologists. Weathering, lithology, alteration,
structure, mineralogy and veining information
were recorded. RC chips are glued to boards as
a visual reference of every hole.

Logging of diamond core additionally recorded
recovery, core strength, orientation, roughness,
and
infill
type.
Diamond
core
was
photographed.

All drill holes were logged in full.

Logging was qualitative and quantitative in
nature.
Sub-sampling
techniques and
sample

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

If non-core, whether riffled, tube sampled, rotary

HQ2 and NQ2 core was cut in half using a core
saw. All samples were collected from the same
side of the core.

RC samples were collected at the rigusingriffle

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Criteria JORC Code explanation Commentary
preparation 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.
splitters. Samples were predominantly dry.

Sampling of diamond core and RC chips uses
industry standard techniques. After drying the
sample is subject to a primary crush, then
pulverised so that 90% passes a -75um sieve.

Field QC procedures involved the use of certified
reference materials (1 in 20), and field duplicates
(1 in 20).

Field duplicates were taken on 1m composites
for RC using a riffle splitter.

Sample sizes are considered appropriate to
correctly represent the moderately nuggetty gold
mineralisation
based
on:
the
style
of
mineralisation, the thickness and consistency of
the intersections, the sampling methodology and
assay value ranges for Au.
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.

The analytical techniques used Fire Assay on 50g
pulp samples with AAS finish. Historically, RC
samples were subject to BLEG bottle roll on 1kg
samples with AAS finish. This method
approaches total dissolution of most minerals.

No geophysical tools were used to determine any
element concentrations used in this Mineral
Resource estimate.

Sample preparation checks for fineness were
carried out by the laboratory as part of internal
procedures to ensure the grind size of 90%
passing 75µm was being attained. Laboratory
QAQC includes the use of internal standards
using certified reference material, and pulp
replicates.
Certified
reference
materials
demonstrate that sample assay values are
accurate.

The QAQC results confirm that acceptable levels
of accuracy and precision have been established.
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.

The PRU logging process involves placing RC drill
samples for each 1m interval onto a board to
form a visual log of the entire hole. PRU senior
exploration personnel verified the significant
intersections by comparing the returned assay
results to the photographs of the ‘chip boards’.

Twinned holes have not been drilled.

Primary data is entered on hard copies in the
field,
then
entered
digitally
using
LogChiefSoftware (Maxwell GeoServices). This
data is directly imported into the central
Datashed database (Maxwell GeoServices).

Assay values that were below detection limit
were adjusted to equal half of the detection
limit value. Intervals with no samples were left
blank in the database (updated from the -9
value used by PRU).

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Criteria JORC Code explanation Commentary
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.

Prior to 2012, a local grid, including baseline,
was established at Edikan by Cluff Plc using
qualfied surveyors. PRU surveyors have since
been used to locate all drill collars in local grid
co-ordinates.

PRU drill holes are surveyed down hole at 10m
to 30m intervals using either Reflex or Flexit
multi-shot equipment. Historical RC holes have
not been down hole surveyed and are assumed
to be straight.

For recent drill programs, collars have been
located in UTM, WGS84, Zone 30N co-ordinates
and transformed to local grid. True azimuths
were converted to local by subtracting 43 from
the true value.

Local RL elevations were adjusted by adding
1,000m to avoid negative values. This was not
done for the initial Mineral Resource estimates.

Topographic surface is based on survey points of
the existing open pits and drill collars, and
merged with the regional topographic surface.
The quality of the surface immediately above
the mineralised lodes has been surveyed with a
high degree of confidence.
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 nominal drill hole spacing is 20m by 20m
and 40m by 40m.

The drill hole spacing and distribution is
considered sufficient to establish the degree of
continuity appropriate for the Mineral Resource
estimation procedures.

Samples were composited to 4m intervals
through zones previously identified as barren,
otherwise 2m composites were collected with
1m
sampling
intervals
through
expected
mineralised zones.
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.

Drill holes are angled to predominantly grid
west, which is approximately perpendicular to
the orientation of the mineralised trends.
Historical AGC holes orientated to grid east.

Due to the orientation of drill holes to the east
or west, several holes have been drilled down
dip within an east dipping sediment lode.
Adjacent drill holes orientated to the west have
shown that sampling bias from those two holes
is not a significant issue. East dipping holes
were excluded from the estimate.
Sample security
The measures taken to ensure sample security.

Chain of custody is managed by PRU. Samples
are stored on site and collected by laboratory
employees. PRU employees have no further
involvement in the preparation or analysis of
the samples.
Audits
or
reviews

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

A review of sampling techniques was carried out
on each site visit by RPM, the most recent in
2010.

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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.

The deposit is located within the Nanankaw
Mining Lease ML1110/1994 which is wholly
owned by PRU.

The Mining Lease was granted for a term of 15
years and expires 30 December 2024

The tenements are in good standing.
Exploration
done by other
parties

Acknowledgment and appraisal of exploration by
other parties.

Previous companies to have held the ground
include Cluff Mining and Ashanti Goldfields.
Exploration activities included RC and Diamond
drilling.
Geology
Deposit type, geological setting and style of
mineralisation.

The Edikan deposits occur near the western
flank of the Ashanti Greenstone Belt along the
Obuasi-Akropong gold corridor. The Central
Ashanti property is underlain principally by
Paleoproterozoic Birimian metasediments of the
Kumasi-Afema basin, positioned between the
Ashanti and Sefwi Greenstone Belts. The flysch
type
metasediments
consist
of
dacitic
volcaniclastics, greywackes plus argillaceous
(phyllitic) sediments, intensely folded, faulted
and metamorphosed to upper greenschist facies.
Minor cherty and manganiferous exhalative
sediments are locally present, and graphitic
schists coincide with the principal shear (thrust)
zones. Numerous small Basin-type or Cape
Coast-type
granitoids
have
intruded
the
sediments along several regional structures.
Mineralisation at Bokitsi is concentrated and
confined mainly within steeply dipping units
hosted within sediments and schists. The
mineralisation style differs from the majority of
the
other
Perseus
deposits,
which
are
predominantly
hosted
within
granites..
Mineralisation is associated with minor quartz
veining and sulphides which are predominantly
pyrite.
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:
easting and northing of the drill hole collar
elevation or RL (Reduced Level – elevation
above sea level in metres) of the drill hole collar
dip and azimuth of the hole
down hole length and interception depth
hole length
If the exclusion of this information is justified on
the basis that the information is not Material and
this
exclusion
does
not
detract
from
the
understanding of the report, the Competent Person
should clearly explain why this is the case.

Exploration results are not being reported. Drill
hole locations are shown on the map within the
body of this Mineral Resource report. Significant
drill hole intersections have been previously
reported to the ASX.

In the opinion of PRU all material drill results
have been adequately reported.

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Criteria JORC Code explanation Commentary
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.

Exploration drill results are not being reported.

No aggregation of intercepts was carried out.
Drilling intervals are predominantly even 1m, or
composites of 2m or 4m. Mineralised composites
are re-split to 1m for re-assay.

Metal equivalent values are not being reported.
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’).

Drill holes are angled to local grid which is
approximately perpendicular to the orientation of
the mineralised trend.
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.

A plan showing Bokitsi drilling is included within
this Mineral Resource report.
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.

Drill holes have been accurately located by PRU
surveyors using the local grid system.

Exploration
results
have
been
previously
reported to the ASX and are not being reported
for this Mineral Resource update.
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.

Ongoing bulk density determinations have been
conducted by PRU using existing stored drill
core.
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.

Further work at the deposit will be guided by
the results of pit optimisation analysis of the
Mineral Resource.

Along strike and down dip lode extensions have
been highlighted in the body of this Mineral
Resource report.

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Section 3 Estimation and Reporting of Mineral Resources

Criteria JORC Code explanation Commentary
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.

Data validation procedures used.

The data base is systematically audited by PRU
geologists. All drill logs are validated digitally by
the database geologist once assay results are
returned from the laboratory. In 2010, RUL
reviewed the logging of several holes and
validated the records in the database against
the drill core and logging boards. No significant
errors were noted.

RPM performed data audits in Surpac.
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.

Site visits have been conducted by David Price
(RUL) in January 2007, Paul Payne (RUL) in
January 2008, and Aaron Green (RPM) in
October 2010. On each occasion, the deposit
area, the core logging and sampling facility, and
drilling and sampling operations were viewed.
Aaron Green inspected the main laboratory
used by PRU. Notes and photos were taken.
Discussions were held with site personnel
regarding drilling and sampling procedures. No
major issues were encountered.
Geological
interpretation

Confidence in (or conversely, the uncertainty of)
the geological interpretation of the mineral
deposit.

Nature of the data used and of any assumptions
made.

The effect, if any, of alternative interpretations on
Mineral Resource estimation.

The use of geology in guiding and controlling
Mineral Resource estimation.

The factors affecting continuity both of grade and
geology.

The confidence in the geological interpretation
is considered to be good and is based on good
quality drilling.

The deposit consists of moderate to steeply
dipping mineralised sediment lodes which have
been interpreted based on logging of samples
taken at regular intervals from angled drill holes.
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 Bokitsi Mineral Resource area extends over
a strike length of 1,760m from 3,790mN to
5,550mN. The vertical extent of the Mineral
Resource is 280m from surface at 1,180mRL to
900mRL.
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.

Using parameters derived from modelled
variograms, Ordinary Kriging (OK) was used to
estimate average block grades within the
deposit.

Surpac software was used for the estimations.

Top-cuts of between 10g/t and 50g/t were used
for the sediment hosted domains. A total of 20
samples were cut.

The parent block dimensions used were 10m NS
by 5m EW by 10m vertical with sub-cells of 2.5m
by 1.25m by 2.5m. The parent block size was
selected on the basis of being approximately
50% of the average drill hole spacing in the
deposit.

Historical production records were available for
shallow oxidepits completed in the 1990’s.

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Criteria JORC Code explanation Commentary

The availability of check estimates, previous
estimates and/or mine production records and
whether the Mineral Resource estimate takes
appropriate account of such data.

The assumptions made regarding recovery of by-
products.

Estimation of deleterious elements or other non-
grade variables of economic significance (eg
sulphur for acid mine drainage characterisation).

In the case of block model interpolation, the block
size in relation to the average sample spacing and
the search employed.

Any assumptions behind modelling of selective
mining units.

Any assumptions about correlation between
variables.

Description of how the geological interpretation
was used to control the resource estimates.

Discussion of basis for using or not using grade
cutting or capping.

RPM
has
completed
numerous
Mineral
Resource estimates for the deposit since 2009.
Each successive update was based on the
previous estimate and extended with additional
drilling data.

No assumptions have been made regarding
recovery of by-products.

No estimation of deleterious elements was
carried out. Only Au was interpolated into the
block model.

An orientated ‘ellipsoid’ search was used to
select data and was based on parameters taken
from the variography or the observed lode
geometry. Three passes were used for each
domain. The first pass used a range of 50m, with
a minimum of 10 samples. For the second pass,
the range was extended to 100m, with a
minimum of 6 samples. For the final pass, the
range was extended to 200m, with a minimum
of 1 sample. A maximum of 40 samples was
used for all 3 passes.

Selective mining units were not modelled in the
Mineral Resource model. The block size used in
the model was based on drill sample spacing
and lode orientation.

Only Au assay data was available, therefore
correlation analysis was not possible.

The deposit mineralisation was constrained by
wireframes constructed using a 0.2g/t Au cut-off
grade in association with logged lithology codes.
The
wireframes
were
applied
as
hard
boundaries in the estimate.

Statistical analysis was carried out on data from
all lodes. The high coefficient of variation and the
scattering of high grade values observed on the
histogram for some of the objects suggested that
high grade cuts were required if linear grade
interpolation was to be carried out. As a result
high grade cuts of between 10g/t and 50g/t were
applied, resulting in a total of 20 samples being
cut.

A three step process was used to validate the
model. A qualitative assessment was completed
by slicing sections through the block model in
positions coincident with drilling. A quantitative
assessment of the estimate was completed by
comparing the average Au grades of the
composite file input against the Au block model
output for all the resource objects. A trend
analysis was completed by comparing the
interpolated blocks to the sample composite
data within the granite domain. This analysis
was completed for 20m northings. Validation
plots showed good correlation between the
composite grades and the block model grades.

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Criteria JORC Code explanation Commentary

The process of validation, the checking process
used, the comparison of model data to drill hole
data, and use of reconciliation data if available.
Moisture
Whether the tonnages are estimated on a dry
basis or with natural moisture, and the method of
determination of the moisture content.

Tonnages and grades were estimated on a dry in
situ basis. No moisture values were reviewed.
Cut-off
parameters

The basis of the adopted cut-off grade(s) or
quality parameters applied.

The Mineral Resource has been reported at a
0.4g/t Au cut-off based on assumptions about
economic cut-off grades for open pit mining.
PRU is currently mining the AAF deposit which
formspart of the Edikan Mine Project area.
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.

The AAF deposit is currently being mined using
open pit techniques. The proximity of the Bokitsi
deposit to Edikan and the shallow, higher grade
nature of the deposit suggests there is good
potential for mining using both open pit and
underground methods.
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.

Metallurgical test-work was undertaken by PRU
in 2011 as part of the DFS.

Mineralisation characteristics of the sediment
hosted mineralisation at Bokitsi are different to
the mineralisation currently being processed at
the Edikan operation. Metallurgical response is
not as favourable as AAF but testwork has
shown that gold recovery from Bokitsi is still
adequate.
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 Project is not subject to any environmental
liabilities
except
for
a
progressive
decommissioning and reclamation plan for the
closed Ayanfuri heap leach mine.
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.

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

A recent study by PRU determined that the
previous densities assigned to fresh granite and
sediment material were probably too high. A
program of submitting existing drill core for
analysis was instigated in June 2014. A total of
485 existing drill core samples were sent to
commercial laboratories for analysis. Results
suggested the fresh granite material had a
density in the order of 2.7t/m3and that fresh

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Criteria JORC Code explanation Commentary
within the deposit.

Discuss assumptions for bulk density estimates
used in the evaluation process of the different
materials.
sediment had a density of 2.77t/m3. These
values were used in the current RPM block
model.

Measurements were determined by wax coating
samples and immersing in water.

RPM recommends an ongoing program of
submitting suitable core samples for density
analysis from any future diamond drilling
programs.
Classification
The basis for the classification of the Mineral
Resources into varying confidence categories.

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).

Whether the result appropriately reflects the
Competent Person’s view of the deposit.

Mineral Resources were classified in accordance
with the Australasian Code for the Reporting of
Exploration Results, Mineral Resources and Ore
Reserves (JORC, 2012). The Mineral Resource
was classified as Measured, Indicated and
Inferred Mineral Resource on the basis of data
quality, sample spacing, and lode continuity.

The Measured portion of the Mineral Resource
was defined where the drill spacing was
predominantly at 20m by 20m, and continuity of
mineralisation was robust.

The Indicated portion of the Mineral Resource
was defined where the drill spacing was
predominantly at 40m by 20m, and continuity of
mineralisation was evident.

The portions of the deposit classified as Inferred
Mineral Resource include sparsely tested depth
extensions of the main zones, and small zones
peripheral to the main structures which appear
to have poor clear lateral continuity or are
untested.

The input data is comprehensive in its coverage
of the mineralisation and does not favour or
misrepresent
in-situ
mineralisation.
The
definition of mineralised zones is based on high
level geological understanding producing a
robust model of mineralised domains. This
model has been confirmed by infill drilling which
supported the interpretation. Validation of the
block model shows good correlation of the input
data to the estimated grades.

The Mineral Resource estimate appropriately
reflects the view of the Competent Person.
Audits
or
reviews

The results of any audits or reviews of Mineral
Resource estimates.

Internal audits have been completed by RPM
which
verified
the
technical
inputs,
methodology, parameters and results of the
estimate.
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

The Bokitsi Mineral Resource estimate has been
reported with a high degree of confidence. The
lode geometry and continuity has been
interpreted to reflect the Mineral Resource
classification. The data quality is good and the

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Criteria JORC Code explanation Commentary
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 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.

These statements of relative accuracy and
confidence of the estimate should be compared
with production data, where available.
drill holes have detailed logs produced by
qualified geologists. Recognised laboratories
have been used for all analyses.

The Mineral Resource statement relates to
global estimates of tonnes and grade.

The deposit is not currently being mined.
Historical production records are available for
the deposit.

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ATTACHMENT 5

Chirawewa Deposit

JORC Code (2012) Table 1

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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.

Samples at Chirawewa were collected using
drilling techniques such as Reverse Circulation
(RC) and Diamond Drilling (DD). Holes were
generally angled at 60° towards grid west or
east to optimally intersect the mineralised
zones. Some RC drill holes have diamond tails.

Historical RC samples were collected as 4m
composites until potential mineralisation was
expected at which time samples were collected
at 1m intervals from a rig mounted cyclone into
large numbered plastic bags. Recent PRU
drilling has used 2m composite samples, and
then
1m
samples
through
potential
mineralisation. Diamond core was generally
sampled at even 1m intervals. Sampling and
QAQC procedures were carried out to industry
standards.

Rig mounted riffle splitters were used to split RC
samples and minimize bias. Diamond core was
cut in half using a diamond saw and the right
hand side of the core was always submitted for
analysis with the left side being stored in trays
on site.

Approximately 5% of all RC samples were sent
to the Intertek (formerly TWL) laboratory for
24hr bottle roll with AAS finish. All other RC
samples and Diamond half core were analysed
by 50g Fire Assay and AAS finish. Samples were
sent to Intertek Laboratories (Gh) Ltd at
Tarkwa/Ghana (24%), ALS (35%), TWL (18%),
and SGS laboratories (2%).

Historical sampling and assaying methods are
unknown and represent 22% of the supplied
assaydata.
Drilling
techniques

Drill type (eg core, reverse circulation, open-hole
hammer, rotary air blast, auger, Bangka, sonic,
etc) and details (eg core diameter, triple or
standard tube, depth of diamond tails, face-
sampling bit or other type, whether core is
oriented and if so, by what method, etc).

RC drilling comprising 105mm diameter face
sampling bit. Diamond drilling carried out with
HQ2 and NQ2 sized equipment.
Drill
sample
recovery

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

Measures taken to maximise sample recovery and
ensure representative nature of the samples.

Whether a relationship exists between sample
recovery and grade and whether sample bias may
have occurred due to preferential loss/gain of
fine/coarse material.

Recoveries from historical drilling are unknown.
Actual recoveries from PRU diamond drilling
recorded in the database and averaged 93%
with no significant issues noted.

RC samples were visually checked for recovery,
moisture and contamination.

No relationship exists between sample recovery
and grade.
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 holes were field logged by company
geologists. Weathering, lithology, alteration,
structure, mineralogy and veining information
were recorded. RC chips are glued to boards as
a visual reference of every hole.

Logging of diamond core additionally recorded
recovery, core strength, orientation, roughness,
and
infill
type.
Diamond
core
was
photographed.

All drill holes were logged in full.

Logging was qualitative and quantitative in
nature.

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Criteria JORC Code explanation Commentary
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.

HQ2 and NQ2 core was cut in half using a core
saw. All samples were collected from the same
side of the core.

RC samples were collected at the rig using riffle
splitters. Samples were predominantly dry.

Sampling of diamond core and RC chips uses
industry standard techniques. After drying the
sample is subject to a primary crush, then
pulverised so that 90% passes a -75um sieve.

Field QC procedures involved the use of certified
reference materials (1 in 20), and field duplicates
(1 in 20).

Field duplicates were taken on 1m composites
for RC using a riffle splitter.

Sample sizes are considered appropriate to
correctly represent the moderately nuggetty gold
mineralisation
based
on:
the
style
of
mineralisation, the thickness and consistency of
the intersections, the sampling methodology and
assay value ranges for Au.
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.

The analytical techniques used Fire Assay on 50g
pulp samples with AAS finish. Historically, RC
samples were subject to BLEG bottle roll on 1kg
samples with AAS finish. This method
approaches total dissolution of most minerals.

No geophysical tools were used to determine any
element concentrations used in this resource
estimate.

Sample preparation checks for fineness were
carried out by the laboratory as part of internal
procedures to ensure the grind size of 90%
passing 75µm was being attained. Laboratory
QAQC includes the use of internal standards
using certified reference material, and pulp
replicates.
Certified
reference
materials
demonstrate that sample assay values are
accurate.

The QAQC results confirm that acceptable levels
of accuracy and precision have been established.
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.

The PRU logging process involves placing RC drill
samples for each 1m interval onto a board to
form a visual log of the entire hole. PRU senior
exploration personnel verified the significant
intersections by comparing the returned assay
results to the photographs of the ‘chip boards’.

Twinned holes have not been drilled.

Primary data is entered on hard copies in the
field,
then
entered
digitally
using
LogChiefSoftware (Maxwell GeoServices). This
data is directly imported into the central
Datashed database (Maxwell GeoServices).

Assay values that were below detection limit
were adjusted to equal half of the detection
limit value. Intervals with no samples were left
blank in the database(updated from the -9

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Criteria JORC Code explanation Commentary

Discuss any adjustment to assay data.
value used by PRU).
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.

Prior to 2012, a local grid, including baseline,
was established at Edikan by Cluff Plc using
qualified surveyors. PRU surveyors have since
been used to locate all drill collars in local grid
co-ordinates.

PRU drill holes are surveyed down hole at 10m
to 30m intervals using either Reflex or Flexit
multi-shot equipment. Historical RC holes have
not been down hole surveyed and are assumed
to be straight. Historical diamond holes were
down hole surveyed using either acid tubes or a
single shot camera.

For recent drill programs, collars have been
located in UTM, WGS84, Zone 30N co-ordinates
and transformed to local grid. True azimuths
were converted to local by subtracting 43 from
the true value.

Local RL elevations were adjusted by adding
1,000m to avoid negative values. This was not
done for the initial Mineral Resource estimates.

Topographic surface is based on survey points of
the existing open pits and drill collars, and
merged with the regional topographic surface.
The quality of the surface immediately above
the mineralised lodes has been surveyed with a
high degree of confidence.
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 nominal resource drill hole spacing is 20m
by 20m.

The drill hole spacing and distribution is
considered sufficient to establish the degree of
continuity appropriate for the Mineral Resource
estimation procedures.

Samples have been composited to 4m or 2m
intervals with 1m sampling intervals through
expected mineralised zones.
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.

Drill holes are angled to grid west or east, which
is
approximately
perpendicular
to
the
orientation of the mineralised trends.

Due to the orientation of drill holes to the east
or west, two holes have been drilled down dip
within an east dipping sediment lode. Adjacent
drill holes orientated to the west have shown
that sampling bias from those two holes is not a
significant issue.
Sample security
The measures taken to ensure sample security.

Chain of custody is managed by PRU. Samples
are stored on site and collected by laboratory
employees. PRU employees have no further
involvement in the preparation or analysis of
the samples.
Audits
or
reviews

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

A review of sampling techniques was carried out
on each site visit by RPM, the most recent in
2010.

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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.

The deposit is located within the Nanankaw
Mining Lease ML1110/1994 which is wholly
owned by PRU.

The Mining Lease was granted for a term of 15
years and expires 30 December 2024

The tenements are in good standing.
Exploration
done by other
parties

Acknowledgment and appraisal of exploration by
other parties.

Previous companies to have held the ground
include Cluff Mining and Ashanti Goldfields.
Exploration activities included RC and Diamond
drilling.
Geology
Deposit type, geological setting and style of
mineralisation.

The Edikan deposits occur near the western
flank of the Ashanti Greenstone Belt along the
Obuasi-Akropong gold corridor. The Central
Ashanti property is underlain principally by
Paleoproterozoic Birimian metasediments of the
Kumasi-Afema basin, positioned between the
Ashanti and Sefwi Greenstone Belts. The flysch
type
metasediments
consist
of
dacitic
volcaniclastics, greywackes plus argillaceous
(phyllitic) sediments, intensely folded, faulted
and metamorphosed to upper greenschist facies.
Minor cherty and manganiferous exhalative
sediments are locally present, and graphitic
schists coincide with the principal shear (thrust)
zones. Numerous small Basin-type or Cape
Coast-type
granitoids
have
intruded
the
sediments along several regional structures.
Gold mineralisation has been identified within,
or is associated with, the margins of a granitoid
intrusive which has intruded into a sequence of
metasediments. Mineralisation is typically 20-
120m wide and remains open at depth.
Mineralisation is associated with minor quartz
veining and sulphides which are predominantly
pyrite.
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:
easting and northing of the drill hole collar
elevation or RL (Reduced Level – elevation
above sea level in metres) of the drill hole collar
dip and azimuth of the hole
down hole length and interception depth
hole length
If the exclusion of this information is justified on
the basis that the information is not Material and
this
exclusion
does
not
detract
from
the
understanding of the report, the Competent Person
should clearly explain why this is the case.

Exploration results are not being reported. Drill
hole locations are shown on the map within the
body of this Mineral Resource report. Significant
drill hole intersections have been previously
reported to the ASX.

In the opinion of PRU all material drill results
have been adequately reported.
Data In
reporting
Exploration
Results,
weighting

Exploration drill results are not being reported.

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Criteria JORC Code explanation Commentary
aggregation
methods
averaging techniques, maximum and/or minimum
grade truncations (e.g. cutting of high grades) and
cut-off grades are usually Material and should be
stated.
Where aggregate intercepts incorporate short
lengths of high grade results and longer lengths of
low grade results, the procedure used for such
aggregation should be stated and some typical
examples of such aggregations should be shown in
detail.

The assumptions used for any reporting of metal
equivalent values should be clearly stated.

No aggregation of intercepts was carried out.
Drilling intervals are predominantly even 1m, or
composites of 2m or 4m. Mineralised composites
are re-split to 1m for re-assay.

Metal equivalent values are not being reported.
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’).

Drill holes are angled to local grid which is
approximately perpendicular to the orientation of
the mineralised trend.
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.

A plan showing Chirawewa drilling is included
within this Mineral Resource report.
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.

Drill holes have been accurately located by PRU
surveyors using the local grid system.

Exploration
results
have
been
previously
reported to the ASX and are not being reported
for this Mineral Resource update.
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.

Ongoing bulk density determinations have been
conducted by PRU using existing stored drill
core.
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.

An infill drilling program is planned which will be
drilled from the pit floor once the pit has been
dewatered

Along strike and down dip lode extensions have
been highlighted in the body of this Mineral
Resource report.

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Section 3 Estimation and Reporting of Mineral Resources

Criteria JORC Code explanation Commentary
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.

Data validation procedures used.

The data base is systematically audited by PRU
geologists. All drill logs are validated digitally by
the database geologist once assay results are
returned from the laboratory. In 2010, RUL
reviewed the logging of several holes and
validated the records in the database against
the drill core and logging boards. No significant
errors were noted.

RPM performed data audits in Surpac.
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.

Site visits have been conducted by David Price
(RUL) in January 2007, Paul Payne (RUL) in
January 2008, and Aaron Green (RPM) in
October 2010. On each occasion, the deposit
area, the core logging and sampling facility, and
drilling and sampling operations were viewed.
Aaron Green inspected the main laboratory
used by PRU. Notes and photos were taken.
Discussions were held with site personnel
regarding drilling and sampling procedures. No
major issues were encountered.
Geological
interpretation

Confidence in (or conversely, the uncertainty of)
the geological interpretation of the mineral
deposit.

Nature of the data used and of any assumptions
made.

The effect, if any, of alternative interpretations on
Mineral Resource estimation.

The use of geology in guiding and controlling
Mineral Resource estimation.

The factors affecting continuity both of grade and
geology.

The confidence in the geological interpretation
is considered to be good and is based on good
quality drilling.

The
deposit
consists
of
steeply
dipping
mineralised granite and sediment lodes which
have been interpreted based on logging of
samples taken at regular intervals from angled
drill holes.
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 Chirawewa Mineral Resource area extends
over a strike length of 1,120m (from 3,780mN –
4,900mN), has an outcropping (within the
existing pit) average width of 55m (3,900mE –
3,955mE) and includes the 310m vertical
interval from 1,190mRL to 880mRL.
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.

Using parameters derived from modelled
variograms, Ordinary Kriging (OK) was used to
estimate average block grades within Objects 1
and 4, and Inverse Distance Squared (ID2) was
used to estimate average block grades within
the remaining objects.

Surpac software was used for the estimations.

A top-cut of 10g/t was appropriate for all
objects, apart from Object 4 where a 15g/t top-
cut was used for oxide mineralisation and 20g/t
Au top-cut was used for fresh mineralisation
based on statistical analysis. A total of 31
samples were cut.

The parent block dimensions used were 10m NS
by5m EW by10m vertical with sub-cells of 2.5m

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Criteria JORC Code explanation Commentary

The availability of check estimates, previous
estimates and/or mine production records and
whether the Mineral Resource estimate takes
appropriate account of such data.

The assumptions made regarding recovery of by-
products.

Estimation of deleterious elements or other non-
grade variables of economic significance (eg
sulphur for acid mine drainage characterisation).

In the case of block model interpolation, the block
size in relation to the average sample spacing and
the search employed.

Any assumptions behind modelling of selective
mining units.

Any assumptions about correlation between
variables.

Description of how the geological interpretation
was used to control the resource estimates.

Discussion of basis for using or not using grade
cutting or capping.
by 1.25m by 2.5m. The parent block size was
selected on the basis of being approximately
50% of the average drill hole spacing in the
deposit.

No historical production records were available.

RPM
has
completed
numerous
Mineral
Resource estimates for the deposit since 2009.
Each successive update was based on the
previous estimate.

No assumptions have been made regarding
recovery of by-products.

No estimation of deleterious elements was
carried out. Only Au was interpolated into the
block model.

An orientated ‘ellipsoid’ search was used to
select data and was based on parameters taken
from the variography or the observed lode
geometry. Three passes were used for each
domain. The first pass used a range of 50m, with
a minimum of 10 samples. For the second pass,
the range was extended to 100m, with a
minimum of 6 samples. For the final pass, the
range was extended to 200m, with a minimum
of 2 samples. A maximum of 40 samples was
used for all 3 passes.

Selective mining units were not modelled in the
Mineral Resource model. The block size used in
the model was based on drill sample spacing
and lode orientation.

Only Au assay data was available, therefore
correlation analysis was not possible.

The deposit mineralisation was constrained by
wireframes constructed using a 0.2g/t Au cut-off
grade in association with logged lithology codes.
The
wireframes
were
applied
as
hard
boundaries in the estimate.

Statistical analysis was carried out on data from
14 lodes. The high coefficient of variation and the
scattering of high grade values observed on the
histogram for some of the objects suggested that
high grade cuts were required if linear grade
interpolation was to be carried out. As a result
high grade cuts of 10g/t for all domains, except
Object 4 where a 15g/t Au cut was used for oxide
mineralisation and 20g/t Au cut was used for
fresh mineralisation were applied, resulting in a
total of 31 samples being cut.

A three step process was used to validate the
model. A qualitative assessment was completed
by slicing sections through the block model in
positions coincident with drilling. A quantitative
assessment of the estimate was completed by
comparing the average Au grades of the
composite file input against the Au block model
output for all the resource objects. A trend
analysis was completed by comparing the
interpolated blocks to the sample composite
data within the granite domain. This analysis
was completed for 20m northings and 10m
bench heights. Validation plots showed good
correlation between the composite grades and
the block model grades.

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Criteria JORC Code explanation Commentary

The process of validation, the checking process
used, the comparison of model data to drill hole
data, and use of reconciliation data if available.
Moisture
Whether the tonnages are estimated on a dry
basis or with natural moisture, and the method of
determination of the moisture content.

Tonnages and grades were estimated on a dry in
situ basis. No moisture values were reviewed.
Cut-off
parameters

The basis of the adopted cut-off grade(s) or
quality parameters applied.

The Mineral Resource has been reported at a
0.4g/t Au cut-off based on assumptions about
economic cut-off grades for open pit mining.
PRU are currently mining the AAF deposit which
formspart of the Edikan Mine Project area.
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.

The AAF deposit is currently being mined using
open pit techniques. The Chirawewa deposit is
of similar style to that of the AAF deposit and
could be mined using both open pit and
underground methods.
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.

Extensive
metallurgical
test-work
was
completed on material from a number of
deposits within Edikan Project area, by AMMTEC
Pty Ltd in Perth for Cluff Plc in the early 1990’s.
This focused on CIL test-work on both oxide and
sulphide material and later to heap leach.
Preliminary amalgamation
and
cyanidation
results using bottle roll methodology confirmed
the free milling nature of both the oxide and
granite mineralisation.

Metallurgical test-work was undertaken by PRU
in 2011 aspart of the DFS.
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 Project is not subject to any environmental
liabilities
except
for
a
progressive
decommissioning and reclamation plan for the
closed Ayanfuri heap leach mine.
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.

The bulk density for bulk material must have been
measured by methods that adequately accountfor

A recent study by PRU determined that the
current densities assigned to fresh granite and
sediment material were likely too high. A
program of submitting existing drill core for
analysis was instigated in June 2014. A total of
485 existing drill core samples were sent to
commercial laboratories for analysis. Results

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Criteria JORC Code explanation Commentary
void spaces (vugs, porosity, etc), moisture and
differences between rock and alteration zones
within the deposit.

Discuss assumptions for bulk density estimates
used in the evaluation process of the different
materials.
suggested the fresh granite material had a
density in the order of 2.7t/m3and that fresh
sediment had a density of 2.77t/m3. These
values were used in the current RPM block
model.

Measurements were determined by wax coating
samples and immersing in water.

RPM recommends an ongoing program of
submitting suitable core samples for density
analysis from any future diamond drilling
programs.
Classification
The basis for the classification of the Mineral
Resources into varying confidence categories.

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).

Whether the result appropriately reflects the
Competent Person’s view of the deposit.

Mineral Resources were classified in accordance
with the Australasian Code for the Reporting of
Exploration Results, Mineral Resources and Ore
Reserves (JORC, 2012). The resource was
classified as Indicated and Inferred Mineral
Resource on the basis of data quality, sample
spacing, and lode continuity.

The Indicated portion of the Mineral Resource
was defined where the drill spacing was
predominantly at 20m by 20m, and continuity of
mineralisation was good.

The portions of the deposit classified as Inferred
Mineral Resource include sparsely tested depth
extensions of the main zones, and small zones
peripheral to the main structures which appear
to have poor clear lateral continuity or are
untested.

The input data is comprehensive in its coverage
of the mineralisation and does not favour or
misrepresent
in-situ
mineralisation.
The
definition of mineralised zones is based on high
level geological understanding producing a
robust model of mineralised domains. This
model has been confirmed by infill drilling which
supported the interpretation. Validation of the
block model shows good correlation of the input
data to the estimated grades.

The Mineral Resource estimate appropriately
reflects the view of the Competent Person.
Audits
or
reviews

The results of any audits or reviews of Mineral
Resource estimates.

Internal audits have been completed by RPM
which
verified
the
technical
inputs,
methodology, parameters and results of the
estimate.
Discussion
of
relative
accuracy/

Where appropriate a statement of the relative
accuracy and confidence level in the Mineral
Resource
estimate
using
an
approach
or

The Chirawewa Mineral Resource estimate has
been reported with a high degree of confidence.
The lode geometry and continuity has been

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Criteria JORC Code explanation Commentary
confidence 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 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.

These statements of relative accuracy and
confidence of the estimate should be compared
with production data, where available.
interpreted to reflect the applied level of
Indicated and Inferred Mineral Resource. The
data quality is good and the drill holes have
detailed logs produced by qualified geologists.
Recognised laboratories have been used for all
analyses.

The Mineral Resource statement relates to
global estimates of tonnes and grade.

The deposit is not currently being mined.
Historical production records are not available
for the deposit.

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ATTACHMENT 6

Esuajah North Deposit

JORC Code (2012) Table 1

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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.

Drill holes included in the resource were
sampled using Reverse Circulation (RC) and
diamond drill (DD) holes on a nominal 40m by
40m grid spacing (with localised areas of 20m by
20m). A total of 160 holes were included in the
resource for a total 3,295m within the resource
wireframes. Holes were generally angled at 50°
towards grid west or east to optimally intersect
the mineralised zones.

Drill hole collars were picked up and down hole
surveyed by qualified surveyors. RC samples
were collected by a riffle splitter at 1m to 2m
intervals. Diamond core was cut in half using a
core
saw
with
sampling
at
geological
boundaries. All samples were collected from the
same side of the core. Sampling and QAQC
procedures were carried out to industry
standards.

Samples from the first 60 RC drill holes were
sent to Transworld Laboratory for 24hr bottle
roll with AAS finish. All subsequent RC samples
were analysed by 50g Fire Assay at ALS Kumasi.
Diamond half core samples analysed by 50g Fire
Assay and AAS finish.
Drilling
techniques

Drill type (eg core, reverse circulation, open-hole
hammer, rotary air blast, auger, Bangka, sonic,
etc) and details (eg core diameter, triple or
standard tube, depth of diamond tails, face-
sampling bit or other type, whether core is
oriented and if so, by what method, etc).

RC drilling comprising 105mm diameter face
sampling bit. Diamond drilling carried out with
HQ2 and NQ2 sized equipment.
Drill sample
recovery

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

Measures taken to maximise sample recovery and
ensure representative nature of the samples.

Whether a relationship exists between sample
recovery and grade and whether sample bias may
have occurred due to preferential loss/gain of
fine/coarse material.

Recoveries from historical drilling are unknown.
Actual recoveries from PRU diamond drilling are
recorded in the main Edikan database and
average 96% with no significant issues noted.
No actual recoveries were included in the data
supplied for the Dadieso deposit.

RC samples were visually checked for recovery,
moisture and contamination.
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.

All holes were field logged by company
geologists. Weathering, lithology, alteration,
structure, mineralogy and veining information
were recorded. RC chips are glued to boards as
a visual reference of every hole.

Logging of diamond core
also recorded
recovery, core strength, orientation, roughness,
and
infill
type.
Diamond
core
was
photographed.

All drill holes were logged in full.

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Criteria JORC Code explanation Commentary

The total length and percentage of the relevant
intersections logged.
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.

HQ2 and NQ2 core was cut in half using a core
saw. All samples were collected from the same
side of the core.

RC samples were collected at the rig using riffle
splitters. Samples were predominantly dry. Less
than 0.5% of samples were recorded as ‘wet’ in
the supplied data in the ‘sampquality’ field,
although 55% of records in this field are blank.

Sampling of diamond core and RC chips uses
industry standard techniques. After drying the
sample is subject to a primary crush, then
pulverised so that 90% passes a -75um sieve.

Field QC procedures involved the use of certified
reference materials (1 in 20), and field duplicates
(1 in 20).

Field duplicates were taken on 1m to 2m
composites for RC using a riffle splitter.

Sample sizes are considered appropriate to
correctly represent the moderately nuggetty gold
mineralisation
based
on:
the
style
of
mineralisation, the thickness and consistency of
the intersections, the sampling methodology and
assay value ranges for Au.
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.

The analytical techniques used Fire Assay on 50g
samples or BLEG bottle roll on 1kg samples both
with AAS finish. This method approaches total
dissolution of most minerals.

No geophysical tools were used to determine any
element concentrations used in this resource
estimate.

Sample preparation checks for fineness were
carried out by the laboratory as part of internal
procedures to ensure the grind size of 90%
passing 75µm was being attained. Laboratory
QAQC includes the use of internal standards
using certified reference material, and pulp
replicates.
Certified
reference
materials
demonstrate that sample assay values are
accurate. Aaron Green of RPM visited the main
laboratory in October 2010.
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.

RPM has not independently verified significant
intersections of mineralisation.

DKRC067 and DKRC068 are twinned holes and
display similar down hole grades. The east and
west dipping holes on 40m spacing result in
‘crossing’ of drill traces at depth.

Primary data is entered on hardcopies in the
field and then entered digitally using Log Chief
Software (Maxwell GeoServices). This data is
then directly imported into the PRU central
database (DataShed/Maxwell GeoServices).

Assay values that were below detection limit
were adjusted to equal half of the detection
limit value. Intervals with no samples were left
blank in the database (updated from the -9
value used byPRU).

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Criteria JORC Code explanation Commentary
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.

Prior to 2012, a local grid, including baseline,
was established at Edikan by Plc (Cluff) using
qualified surveyors. Qualified surveyors were
used to locate all drill collars in local grid co-
ordinates.

For recent drill programs, collars have been
located in UTM, WGS84, Zone 30N co-ordinates
and transformed to local grid. True azimuths
were converted to local by subtracting 43 from
the true value.

Local RL elevations were adjusted by adding
1,000m to avoid negative values. This was not
done for the previous resource estimates.

PRU drill holes are surveyed down hole at 10m
to 30m intervals using either Reflex or Flexit
multi-shot equipment. Historical RC holes have
not been down hole surveyed and are assumed
to be straight. The average depth of these holes
is 50m.

Topographic surface based on 1,181 historic pit
survey points and 1,955 topographic and drill
hole surveyed locations byPRU surveyors.
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 nominal drill hole spacing is 40m by 40m.

The mineralised domains have demonstrated
sufficient continuity in both geological and
grade continuity to support the definition of
Mineral
Resource,
and
the
classifications
applied under the 2012 JORC Code.

Samples have been composited to 2m lengths
using best fit techniques. One residual sample
length was excluded.
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.

Drill holes are angled to grid east and west,
which is approximately perpendicular to the
orientation of the interpreted mineralised
trends.

No orientation based sampling bias has been
identified in the data.
Sample security
The measures taken to ensure sample security.

Chain of custody is managed by PRU. Samples
are stored on site and collected by Intertek
employees. PRU employees have no further
involvement in the preparation or analysis of
the samples.
Audits or
reviews

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

A review of sampling techniques was carried out
on each site visit by RPM the most recent in
2010.

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

The deposit is located within the Nanankaw
Mining Lease ML1110/1994 which is wholly
owned by PRU.

The Mining Lease was granted for a term of 15
years and expires 30 December 2024

The tenements are in good standing.

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Criteria JORC Code explanation Commentary
reporting along with any known impediments to
obtaining a license to operate in the area.
Exploration
done by other
parties

Acknowledgment and appraisal of exploration by
other parties.

Previous companies to have held the ground
include Cluff Mining and Ashanti Goldfields.
Exploration activities included RC and Diamond
drilling.
Geology
Deposit type, geological setting and style of
mineralisation.

The Edikan deposits occur near the western
flank of the Ashanti Greenstone Belt along the
Obuasi-Akropong gold corridor. The Central
Ashanti property is underlain principally by
Paleoproterozoic Birimian metasediments of the
Kumasi-Afema basin, positioned between the
Ashanti and Sefwi Greenstone Belts. The flysch
type
metasediments
consist
of
dacitic
volcaniclastics, greywackes plus argillaceous
(phyllitic) sediments, intensely folded, faulted
and metamorphosed to upper greenschist facies.
Minor cherty and manganiferous exhalative
sediments are locally present, and graphitic
schists coincide with the principal shear (thrust)
zones. Numerous small Basin-type or Cape
Coast-type
granitoids
have
intruded
the
sediments along several regional structures.
Gold mineralisation has been identified within,
or is associated with, the margins of a granitoid
intrusive which has intruded into a sequence of
metasediments. Mineralisation is typically 20-
120m wide and remains open at depth.
Mineralisation is associated with minor quartz
veining and sulphides which are predominantly
pyrite.
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:
easting and northing of the drill hole collar
elevation or RL (Reduced Level – elevation
above sea level in metres) of the drill hole collar
dip and azimuth of the hole
down hole length and interception depth
hole length
If the exclusion of this information is justified on
the basis that the information is not Material and
this
exclusion
does
not
detract
from
the
understanding of the report, the Competent Person
should clearly explain why this is the case.

Exploration results are not being reported. Drill
hole locations are shown on the map within the
body of this Mineral Resource report. Significant
drill hole intersections have been previously
reported to the ASX.

In the opinion of PRU all material drill results
have been adequately reported.
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.

Exploration drill results are not being reported.

No aggregation of intercepts was carried out.
Drilling intervals are predominantly even 1m, or
composites of 2m or 4m. Mineralised composites
are re-split to 1m for re-assay.

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Criteria JORC Code explanation Commentary

The assumptions used for any reporting of metal
equivalent values should be clearly stated.

Metal equivalent values are not being reported.
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’).

Drill holes are angled to local grid which is
approximately perpendicular to the orientation of
the mineralised trend.
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.

Exploration
results
have
been
previously
reported to the ASX and are not being reported
for this Mineral Resource update.
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.

Drill holes have been accurately located by PRU
surveyors using the local grid system.

Exploration
results
have
been
previously
reported to the ASX and are not being reported
for this Mineral Resource update.
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.

Ongoing bulk density determinations have been
conducted by PRU using existing stored drill
core.
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.

No further exploration planned at Esuajah
North.

Exploration
results
have
been
previously
reported to the ASX and are not being reported
for this Mineral Resource update.

Section 3 Estimation and Reporting of Mineral Resources

Criteria JORC Code explanation Commentary
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.

Data validation procedures used.

The data base is systematically audited by PRU
geologists. All drill logs are validated digitally by
the database geologist once assay results are
returned from the laboratory. In 2010, RUL
reviewed the logging of several holes and
validated the records in the database against
the drill core and logging boards. No significant
errors were noted.

RPM validated the 2013 data against previous
data from the 2012 estimate.

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Criteria JORC Code explanation Commentary

RPM alsoperformed data audits in Surpac.
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.

Site visits have been conducted by David Price
(RUL) in January 2007, Paul Payne (RUL) in
January 2008, and Aaron Green (RPM) in
October 2010. On each occasion, the deposit
area, the core logging and sampling facility, and
drilling and sampling operations were viewed.
Aaron Green inspected the main laboratory
used by PRU. Notes and photos were taken.
Discussions were held with site personnel
regarding drilling and sampling procedures. No
major issues were encountered.
Geological
interpretation

Confidence in (or conversely, the uncertainty of)
the geological interpretation of the mineral
deposit.

Nature of the data used and of any assumptions
made.

The effect, if any, of alternative interpretations on
Mineral Resource estimation.

The use of geology in guiding and controlling
Mineral Resource estimation.

The factors affecting continuity both of grade and
geology.

The confidence in the geological interpretation
is considered to be robust.

The deposit primarily consists of a steeply
dipping mineralised granite lode.

Surface outcropping of mineralisation confirms
the geometry of the mineralisation.

Geological logging of drilling has generally
confirmed the geometry of the mineralisation.
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 Esuajah North resource area extends over a
strike length of 500m (from 7,000mN to
7,500mN), and includes the 470m vertical
interval from 1,170mRL to 700mRL. The overall
plan width of the mineralised lodes is 275m and
extends from 2,225mE to 2,500mE.
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 availability of check estimates, previous
estimates and/or mine production records and
whether the Mineral Resource estimate takes
appropriate account of such data.

The assumptions made regarding recovery of by-
products.

Estimation of deleterious elements or other non-
grade variables of economic significance (eg

Using
parameters
derived
from
modeled
variograms, Ordinary Kriging (OK) was used to
estimate average block grades within the lodes.

Surpac software was used for the estimations.

A high grade cut of 20g/t was applied to all
lodes. A total of 30 samples were cut.

The parent block dimensions used were 10m NS
by 10m EW by 20m vertical with sub-cells of
2.5m by 2.5m by 5m. The parent block size was
selected on the basis of being approximately
50% of the average drill hole spacing in the
deposit.

Previous mining has occurred at the deposit as
part of the Edikan Heap Leach Project which
commenced production in November 1994
although mining records are not available for
the Esuajah North deposit.

No estimation of deleterious elements was
carried out. OnlyAu was interpolated into the

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Criteria JORC Code explanation Commentary
sulphur for acid mine drainage characterisation).

In the case of block model interpolation, the block
size in relation to the average sample spacing and
the search employed.

Any assumptions behind modelling of selective
mining units.

Any assumptions about correlation between
variables.

Description of how the geological interpretation
was used to control the resource estimates.

Discussion of basis for using or not using grade
cutting or capping.

The process of validation, the checking process
used, the comparison of model data to drill hole
data, and use of reconciliation data if available.
block model.

An orientated ‘ellipsoid’ search was used to
select data and was based on parameters taken
from the variography and orientated to
individual lode geometry. Three passes were
used for each domain. The first pass used a
range of 40m, with a minimum of 10 samples.
For the second pass, the range was extended to
100m, with a minimum of 10 samples. For the
final pass, the range was extended to 240m,
with a minimum of 6 samples. A maximum of 40
samples was used for all 3 passes.

No assumptions were made on selective mining
units.

Only Au assay data was available, therefore
correlation analysis was not possible.

The deposit mineralisation was constrained by
wireframes constructed using a 0.2g/t Au cut-off
grade in association with logged lithology codes.
The
wireframes
were
applied
as
hard
boundaries in the estimate.

A three step process was used to validate the
model. A qualitative assessment was completed
by slicing sections through the block model in
positions coincident with drilling. A quantitative
assessment of the estimate was completed by
comparing the average Au grades of the
composite file input against the Au block model
output for all the resource objects. A trend
analysis was completed by comparing the
interpolated blocks to the sample composite
data for the combined lodes. This analysis was
completed for 20m northings and 20m bench
heights.
Validation
plots
showed
good
correlation between the composite grades and
the block model grades.
Moisture
Whether the tonnages are estimated on a dry
basis or with natural moisture, and the method of
determination of the moisture content.

Tonnages and grades were estimated on a dry in
situ basis. No moisture values were reviewed.
Cut-off
parameters

The basis of the adopted cut-off grade(s) or
quality parameters applied.

The Mineral Resource has been reported at a
0.4g/t Au cut-off based on assumptions about
economic cut-off grades for open pit mining.
PRU are currently mining adjacent deposits
within the Edikan Project area.
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

RPM has assumed that the deposit could
potentially be mined using open pit techniques
with some potential for large scale underground
mining.

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Criteria JORC Code explanation Commentary
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.
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.

Extensive metallurgical testwork was completed
on material from a number of deposits within
the Edikan Project area, by AMMTEC Pty Ltd in
Perth for Cluff Plc in the early 1990’s. This
focussed on CIL testwork on both oxide and
sulphide material and later to heap leach.
Preliminary amalgamation
and
cyanidation
results using bottle roll methodology confirmed
the free milling nature of both the oxide and
granite mineralisation.

Metallurgical testwork was undertaken by PRU
in 2011 aspart of the DFS.
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 Project is not subject to any environmental
liabilities
except
for
a
progressive
decommissioning and reclamation plan for the
closed Ayanfuri heap leach mine.
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.

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.

Discuss assumptions for bulk density estimates
used in the evaluation process of the different
materials.

A total of 956 bulk density determinations have
been undertaken at the Edikan Project.

814 samples were from primary rock, 48 were
from slightly weathered to strongly weathered
material, and 94 were from the transitional
zone, which is a fair reflection on the proportion
of sulphide Mineral Resources to oxide Mineral
Resources.

A total of 153 of the bulk density samples were
taken from the Esuajah North deposit.

The bulk density of the mineralisation has been
determined with a high degree of confidence
from extensive sampling and measurements.
Classification
The basis for the classification of the Mineral
Resources into varying confidence categories.

Mineral Resources were classified in accordance
with the Australasian Code for the Reporting of
Identified Mineral Resources and Ore Reserves
(JORC, 2012). The resource was classified as
Measured, Indicated and Inferred Mineral
Resource. The Measured portion of the resource
was defined where the drill spacing was
predominantly closer than 20m by 40m with
excellent continuity of the main mineralised
zones within the granite. The Indicated portion
of the resource was defined where the drill
spacingwasgreater than 20m by40m at the

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Criteria JORC Code explanation Commentary

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).

Whether the result appropriately reflects the
Competent Person’s view of the deposit.
north and south margins of the granite where
continuity of mineralisation was good. Areas of
the resource defined at greater than 40m
spacing, as well as the sediment to the south of
the main granite, were classified as Inferred
Mineral Resource. This includes the sparsely
intersected depth extension of the mineralised
granite.

The input data is adequate in its coverage of the
mineralisation
and
does
not
favour
or
misrepresent in-situ mineralisation. Infill drilling
has confirmed the mineralisation continuity for
the main lodes and support the interpretation.
Validation of the block model shows good
correlation of the input data to the estimated
grades.

The Mineral Resource estimate appropriately
reflects the view of the Competent Person.
Audits or
reviews

The results of any audits or reviews of Mineral
Resource estimates.

Internal audits have been completed by RPM
which
verified
the
technical
inputs,
methodology, parameters and results of the
estimate.
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 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.

These statements of relative accuracy and
confidence of the estimate should be compared
with production data, where available.

The relative accuracy of the Mineral Resource
estimate is reflected in the reporting of the
Mineral Resource as per the guidelines of the
2012 JORC Code.

The Mineral Resource statement relates to
global estimates of tonnes and grade.

The deposit is not currently being mined.

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ATTACHMENT 7

Esuajah South Deposit

JORC Code (2012) Table 1

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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.

Drill holes included in the resource were
sampled using Reverse Circulation (RC) and
diamond drill (DD) holes on a nominal 20m by
20m grid spacing. A total of 151 holes were
included in the resource for a total 13,503m
within the resource wireframes. Holes were
generally angled at 50° towards grid west or
east to optimally intersect the mineralised
zones.

Drill hole collars were picked up and down hole
surveyed by qualified surveyors. RC samples
were collected by a riffle splitter at 1m intervals.
Diamond core was cut in half using a core saw
with sampling at geological boundaries. All
samples were collected from the same side of
the core. Sampling and QAQC procedures were
carried out to industry standards.

RC samples sent to Transworld Laboratory for
24hr bottle roll with AAS finish. Diamond half
core samples analysed by 50g Fire Assay and
AAS finish.
Drilling
techniques

Drill type (eg core, reverse circulation, open-hole
hammer, rotary air blast, auger, Bangka, sonic,
etc) and details (eg core diameter, triple or
standard tube, depth of diamond tails, face-
sampling bit or other type, whether core is
oriented and if so, by what method, etc).

RC drilling comprising 105mm diameter face
sampling bit. Diamond drilling carried out with
HQ2 and NQ2 sized equipment.
Drill sample
recovery

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

Measures taken to maximise sample recovery and
ensure representative nature of the samples.

Whether a relationship exists between sample
recovery and grade and whether sample bias may
have occurred due to preferential loss/gain of
fine/coarse material.

Recoveries from historical drilling are unknown.
Actual recoveries from PRU diamond drilling
recorded in the database and averaged 96.7%
with no significant issues noted.

RC samples were visually checked for recovery,
moisture and contamination.
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.

All holes were field logged by company
geologists. Weathering, lithology, alteration,
structure, mineralogy and veining information
were recorded. RC chips are glued to boards as
a visual reference of every hole.

Logging of diamond core
also recorded
recovery, core strength, orientation, roughness,
and
infill
type.
Diamond
core
was
photographed.

All drill holes were logged in full.

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Criteria JORC Code explanation Commentary

The total length and percentage of the relevant
intersections logged.
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.

HQ2 and NQ2 core was cut in half using a core
saw. All samples were collected from the same
side of the core.

RC samples were collected at the rig using riffle
splitters. Samples were predominantly wet but
very few occur within the Mineral Resource
wireframes.

Sampling of diamond core and RC chips uses
industry standard techniques. After drying the
sample is subject to a primary crush, then
pulverised so that 90% passes a -75um sieve.

Field QC procedures involved the use of certified
reference materials (1 in 20), and field duplicates
(1 in 20).

Field duplicates were taken on 1m composites
for RC using a riffle splitter.

Sample sizes are considered appropriate to
correctly represent the moderately nuggetty gold
mineralisation
based
on:
the
style
of
mineralisation, the thickness and consistency of
the intersections, the sampling methodology and
assay value ranges for Au.
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.

The analytical techniques used Fire Assay on 50g
samples or BLEG bottle roll on 1kg samples both
with AAS finish. This method approaches total
dissolution of most minerals.

No geophysical tools were used to determine any
element concentrations used in this resource
estimate.

Sample preparation checks for fineness were
carried out by the laboratory as part of internal
procedures to ensure the grind size of 90%
passing 75µm was being attained. Laboratory
QAQC includes the use of internal standards
using certified reference material, and pulp
replicates.
Certified
reference
materials
demonstrate that sample assay values are
accurate. Aaron Green of RPM visited the main
laboratory in October 2010.
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.

RPM has not independently verified significant
intersections of mineralisation.

No twin holes were drilled although the east
and west dipping holes on 20m spacing result in
‘crossing’ of drill traces at depth.

Primary data is entered on hardcopies in the
field and then entered digitally using Log Chief
Software (Maxwell GeoServices). This data is
then directly imported into the PRU central
database (DataShed/Maxwell GeoServices).

Assay values that were below detection limit
were adjusted to equal half of the detection
limit value. Intervals with no samples were left
blank in the database (updated from the -9
value used byPRU).
Location of
Accuracy and quality of surveys used to locate drill
holes(collar and down-hole surveys), trenches,

Prior to 2012, a local grid, including baseline,
was established at Edikan byCluff Plc using

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Criteria JORC Code explanation Commentary
data points mine workings and other locations used in Mineral
Resource estimation.

Specification of the grid system used.

Quality and adequacy of topographic control.
qualified surveyors. Qualified surveyors were
used to locate all drill collars in local grid co-
ordinates.

For recent drill programs, collars have been
located in UTM, WGS84, Zone 30N co-ordinates
and transformed to local grid. True azimuths
were converted to local by subtracting 43 from
the true value.

Local RL elevations were adjusted by adding
1,000m to avoid negative values. This was not
done for the previous resource estimates.

The first 13 Diamond holes were surveyed down
hole at 60m intervals and at the end of hole,
using acid tests.

PRU drill holes are surveyed down hole at 10m
to 30m intervals using either Reflex or Flexit
multi-shot equipment. Historical RC holes have
not been down hole surveyed and are assumed
to be straight. The average depth of these holes
is 57m. Historical diamond holes were down
hole surveyed using either acid tubes or a single
shot camera.

Topographic surface based on 1,407 survey
points of the old pit surveyed in during mining
of the pit. A further 630 points were surveyed
includingall drill collars,byPRU surveyors.
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 nominal drill hole spacing is 20m by 20m.

The mineralised domains have demonstrated
sufficient continuity in both geological and
grade continuity to support the definition of
Mineral
Resource,
and
the
classifications
applied under the 2012 JORC Code.

Samples have been composited to 1m lengths
using best fit techniques. Two residual sample
lengths were excluded.
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.

Drill holes are angled to grid east and west,
which is approximately perpendicular to the
orientation of the mineralised trends.

No orientation based sampling bias has been
identified in the data.
Sample security
The measures taken to ensure sample security.

Chain of custody is managed by PRU. Samples
are stored on site and collected by Intertek
employees. PRU employees have no further
involvement in the preparation or analysis of
the samples.
Audits or
reviews

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

A review of sampling techniques was carried out
on each site visit by RPM, the most recent in
2010.

Section 2 Reporting of Exploration Results

Criteria JORC Code explanation Commentary
Mineral
tenement
and
land
tenure

Type, reference name/number, location and
ownership including agreements or material issues
with third parties such as joint ventures,

The deposit is located within the Nanankaw
Mining Lease ML1110/1994 which is wholly
owned by PRU.

The MiningLease wasgranted for a term of 15

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Criteria JORC Code explanation Commentary
status 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.
years and expires 30 December 2024

The tenements are in good standing.
Exploration
done by other
parties

Acknowledgment and appraisal of exploration by
other parties.

Previous companies to have held the ground
include Cluff Mining and Ashanti Goldfields.
Exploration activities included RC and Diamond
drilling.
Geology
Deposit type, geological setting and style of
mineralisation.

The Edikan deposits occur near the western
flank of the Ashanti Greenstone Belt along the
Obuasi-Akropong gold corridor. The Central
Ashanti property is underlain principally by
Paleoproterozoic Birimian metasediments of the
Kumasi-Afema basin, positioned between the
Ashanti and Sefwi Greenstone Belts. The flysch
type
metasediments
consist
of
dacitic
volcaniclastics, greywackes plus argillaceous
(phyllitic) sediments, intensely folded, faulted
and metamorphosed to upper greenschist facies.
Minor cherty and manganiferous exhalative
sediments are locally present, and graphitic
schists coincide with the principal shear (thrust)
zones. Numerous small Basin-type or Cape
Coast-type
granitoids
have
intruded
the
sediments along several regional structures.
Gold mineralisation has been identified within,
or is associated with, the margins of a granitoid
intrusive which has intruded into a sequence of
metasediments. Mineralisation is typically 20-
120m wide and remains open at depth.
Mineralisation is associated with minor quartz
veining and sulphides which are predominantly
pyrite.
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:
easting and northing of the drill hole collar
elevation or RL (Reduced Level – elevation
above sea level in metres) of the drill hole collar
dip and azimuth of the hole
down hole length and interception depth
hole length
If the exclusion of this information is justified on
the basis that the information is not Material and
this
exclusion
does
not
detract
from
the
understanding of the report, the Competent Person
should clearly explain why this is the case.

Exploration results are not being reported. Drill
hole locations are shown on the map within the
body of this Mineral Resource report. Significant
drill hole intersections have been previously
reported to the ASX.

In the opinion of PRU all material drill results
have been adequately reported.
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

Exploration drill results are not being reported.

No aggregation of intercepts was carried out.
Drillingintervals arepredominantlyeven 1m,or

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Criteria JORC Code explanation Commentary
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.
composites of 2m or 4m. Mineralised composites
are re-split to 1m for re-assay.

Metal equivalent values are not being reported.
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’).

Drill holes are angled to local grid which is
approximately perpendicular to the orientation of
the mineralised trend.
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.

Exploration
results
have
been
previously
reported to the ASX and are not being reported
for this Mineral Resource update
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.

Drill holes have been accurately located by PRU
surveyors using the local grid system.

Exploration
results
have
been
previously
reported to the ASX and are not being reported
for this Mineral Resource update.
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.

Ongoing bulk density determinations have been
conducted by PRU using existing stored drill
core.
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.

No further drilling currently planned for the
Esuajah South deposit.

Exploration
results
have
been
previously
reported to the ASX and are not being reported
for this Mineral Resource update. PRU are
currently studying the economic viability of
underground mining options at the deposit.

Section 3 Estimation and Reporting of Mineral Resources

Criteria JORC Code explanation Commentary
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.

The data base is systematically audited by PRU
geologists. All drill logs are validated digitally by
the database geologist once assay results are
returned from the laboratory. In 2010, RUL
reviewed the loggingof several holes and

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Criteria JORC Code explanation Commentary

Data validation procedures used.
validated the records in the database against
the drill core and logging boards. No significant
errors were noted.

RPM validated the 2013 data against previous
data from the 2010 estimate. One drill hole
(AKRDD256) had an incorrect prospect name so
had not been used in previous estimates. The
dip and depth intervals of down hole surveys for
a number of drill holes differed from the 2010
database. PRU instructed RPM to use the 2010
data for those holes as the errors were
attributed to converting of the PRU current
database to Datashed format.

RPM alsoperformed data audits in Surpac.
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.

Site visits have been conducted by David Price
(RUL) in January 2007, Paul Payne (RUL) in
January 2008, and Aaron Green (RPM) in
October 2010. On each occasion, the deposit
area, the core logging and sampling facility, and
drilling and sampling operations were viewed.
Aaron Green inspected the main laboratory
used by PRU. Notes and photos were taken.
Discussions were held with site personnel
regarding drilling and sampling procedures. No
major issues were encountered.
Geological
interpretation

Confidence in (or conversely, the uncertainty of)
the geological interpretation of the mineral
deposit.

Nature of the data used and of any assumptions
made.

The effect, if any, of alternative interpretations on
Mineral Resource estimation.

The use of geology in guiding and controlling
Mineral Resource estimation.

The factors affecting continuity both of grade and
geology.

The confidence in the geological interpretation
is considered to be good and is based on good
quality drilling.

The deposit consists of a steeply dipping granite
lode and mineralised sediment lodes. Infill
drilling has supported and refined the model
and the current interpretation is considered
robust.

Outcropping of mineralisation and host rocks
within the previously mined open pit confirm
the geometry of the mineralisation.

The logging of ‘granite’ is consistent and closely
matches the observed mineralisation.

Infill drilling has confirmed geological and grade
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 Esuajah South resource area extends over a
strike length of 300m (from 6,070mN –
6,370mN), has an outcropping (within the
existing pit) average width of 50m (1,950mE –
2,000mE) and includes the 605m vertical
interval from 1,160mRL to 555mRL.
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 availability of check estimates, previous
estimates and/or mine production records and

Using parameters derived from modelled
variograms, Ordinary Kriging (OK) was used to
estimate average block grades within the
granite domain. Inverse distance squared (ID2)
interpolation was used to estimate block grades
within the sediment domain.

Surpac software was used for the estimations.

A high grade cut of 40g/t was applied to the
granite lode, and 15g/t to 30g/t for selected
sediment lodes based on statistical analysis. A
total of 19 samples were cut.

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Criteria JORC Code explanation Commentary
whether the Mineral Resource estimate takes
appropriate account of such data.

The assumptions made regarding recovery of by-
products.

Estimation of deleterious elements or other non-
grade variables of economic significance (eg
sulphur for acid mine drainage characterisation).

In the case of block model interpolation, the block
size in relation to the average sample spacing and
the search employed.

Any assumptions behind modelling of selective
mining units.

Any assumptions about correlation between
variables.

Description of how the geological interpretation
was used to control the resource estimates.

Discussion of basis for using or not using grade
cutting or capping.

The process of validation, the checking process
used, the comparison of model data to drill hole
data, and use of reconciliation data if available.

The parent block dimensions used were 10m NS
by 10m EW by 10m vertical with sub-cells of
2.5m by 2.5m by 2.5m. The parent block size
was
selected
on
the
basis
of
being
approximately 50% of the average drill hole
spacing in the deposit.

Reconciliation with historic production records
was
conducted
by
RUL
in
2010.
The
discrepancies noted between the model and
reported production was attributed to the pit
having not been accurately surveyed, and
currently filled with water. The mined portion of
the model was based on the survey of the pit.

No estimation of deleterious elements was
carried out. Only Au was interpolated into the
block model.

An orientated ‘ellipsoid’ search was used to
select data and was based on parameters taken
from the variography (granite domain only). For
the sediment domain, the search ellipse was
orientated based on observed lode geometry.
Three passes were used for each domain. The
first pass used a range of 30m, with a minimum
of 6 to 10 samples. For the second pass, the
range was extended to 60m, with a minimum of
4 to 6 samples. For the final pass, the range was
extended to 180m to 240m, with a minimum of
2 to 4 samples. A maximum of 40 samples was
used for all 3 passes for the granite domain, and
30 samples for the sediment domain.

No assumptions were made on selective mining
units.

Only Au assay data was available, therefore
correlation analysis was not possible.

The deposit mineralisation was constrained by
wireframes constructed using a 0.2g/t Au cut-off
grade in association with logged lithology codes.
The
wireframes
were
applied
as
hard
boundaries in the estimate.

A three step process was used to validate the
model. A qualitative assessment was completed
by slicing sections through the block model in
positions coincident with drilling. A quantitative
assessment of the estimate was completed by
comparing the average Au grades of the
composite file input against the Au block model
output for all the resource objects. A trend
analysis was completed by comparing the
interpolated blocks to the sample composite
data within the granite domain. This analysis
was completed for 20m northings and 20m
bench heights. Validation plots showed good
correlation between the composite grades and
the block model grades.
Moisture
Whether the tonnages are estimated on a dry
basis or with natural moisture, and the method of
determination of the moisture content.

Tonnages and grades were estimated on a dry in
situ basis. No moisture values were reviewed.

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Criteria JORC Code explanation Commentary
Cut-off
parameters

The basis of the adopted cut-off grade(s) or
quality parameters applied.

The Mineral Resource has been reported at a
0.4g/t Au cut-off based on assumptions about
economic cut-off grades for open pit mining.
PRU are currently mining adjacent granite
hosted deposits.
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.

RPM has assumed that the deposit could
potentially be mined using large scale open pit
and potentially underground techniques. Small
scale open pit mining of the oxide material has
previously occurred at Esuajah South.
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.

Extensive metallurgical testwork was completed
on material from a number of deposits within
Edikan Project area, by AMMTEC Pty Ltd in Perth
for Cluff Plc in the early 1990’s. This focussed on
CIL testwork on both oxide and sulphide
material and later to heap leach. Preliminary
amalgamation and cyanidation results using
bottle roll methodology confirmed the free
milling nature of both the oxide and granite
mineralisation.

Metallurgical testwork was undertaken by PRU
in 2011 aspart of the DFS.
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 Project is not subject to any environmental
liabilities
except
for
a
progressive
decommissioning and reclamation plan for the
closed Ayanfuri heap leach mine.
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.

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.

Discuss assumptions for bulk density estimates
used in the evaluation process of the different
materials.

A total of 956 bulk density determinations have
been undertaken at the Edikan Project, including
209 from the Esuajah South deposit. Average
densities were determined from this analaysis.

814 samples were from primary rock, 48 were
from slightly weathered to strongly weathered
material, and 94 were from the transitional
zone, which is a fair reflection on the proportion
of sulphide Mineral Resources to oxide Mineral
Resources.

The bulk density of the mineralisation has been
determined with a high degree of confidence
from extensive sampling and measurements.
Classification
The basis for the classification of the Mineral
Resources into varying confidence categories.

Mineral Resources were classified in accordance
with the Australasian Code for the Reporting of
Identified Mineral Resources and Ore Reserves

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Criteria JORC Code explanation Commentary

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).

Whether the result appropriately reflects the
Competent Person’s view of the deposit.
(JORC, 2012). The deposit was classified as
Measured, Indicated and Inferred Mineral
Resource based on data quality, drill hole
spacing, and continuity of mineralisation. The
portion of the granite where the drill spacing
was 20m by 20m or less and demonstrating
good lode and grade continuity supported by
high kriging efficiencies was classified as
Measured Mineral Resource. This was confined
to the central portion of the granite domain
from surface down to 830mRL. The portion of
the deposit where the drill spacing was
generally greater than 20m by 20m but still
demonstrated good lode and grade continuity
was classified as Indicated Mineral Resource.
The portion of the deposit classified as Inferred
Mineral Resource included areas where the drill
spacing was greater than 40m by 40m (generally
the deeper portions of the granite), and the
zones of mineralisation within the adjacent
sediments that were defined by limited drilling.

The input data is comprehensive in its coverage
of the mineralisation and does not favour or
misrepresent
in-situ
mineralisation.
The
definition of mineralised zones is based on high
level geological understanding producing a
robust model of mineralised domains. This
model has been confirmed by infill drilling which
supported the interpretation. Validation of the
block model shows good correlation of the input
data to the estimated grades.

The Mineral Resource estimate appropriately
reflects the view of the Competent Person.
Audits or
reviews

The results of any audits or reviews of Mineral
Resource estimates.

Internal audits have been completed by RPM
which
verified
the
technical
inputs,
methodology, parameters and results of the
estimate.
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 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.

These statements of relative accuracy and
confidence of the estimate should be compared
with production data, where available.

The relative accuracy of the Mineral Resource
estimate is reflected in the reporting of the
Mineral Resource as per the guidelines of the
2012 JORC Code.

The Mineral Resource statement relates to
global estimates of tonnes and grade.

The deposit is not currently being mined.
Previous mining of oxide material has been
reconciled with the resource model reported in
2010. The model reported a reduced grade
compared to production. The mined portion of
the model was based on the survey of the
mined pit, which has not been accurately
surveyed, and is therefore only an estimate of
what was mined.

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ATTACHMENT 8

Mampong Deposit

JORC Code (2012) Table 1

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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.

Drill holes included in the resource were
sampled using Reverse Circulation (RC) and
RC/diamond drill tail (RC/DD) holes on a
nominal 40m by 40m grid spacing. A total of 149
holes were included in the resource for a total
3,618m within the resource wireframes. Holes
were angled towards grid south to optimally
intersect the mineralised zones.

Drill hole collars were picked up and down hole
surveyed by qualified surveyors. RC samples
were collected by a riffle splitter at 1m intervals.
Diamond core was cut in half using a core saw
with sampling at 1m intervals, locally to
geological
boundaries.
All
samples
were
collected from the same side of the core.
Sampling and QAQC procedures were carried
out to industry standards.

About 6% of all RC samples were sent to ALS
Minerals at Kumasi/Ghana for 24hr bottle roll
with AAS finish. All other RC samples were
analysed by 50g Fire Assay and AAS finish.
Diamond half core samples were sent to
Intertek Laboratories (Gh) Ltd at Tarkwa/Ghana
or to ALS (Ghana) Limited, Ghana, for 50g Fire
Assay and AAS finish.
Drilling
techniques

Drill type (eg core, reverse circulation, open-hole
hammer, rotary air blast, auger, Bangka, sonic,
etc) and details (eg core diameter, triple or
standard tube, depth of diamond tails, face-
sampling bit or other type, whether core is
oriented and if so, by what method, etc).

RC drilling comprising 105mm diameter face
sampling bit. Diamond drilling carried out with
HQ2 and NQ2 sized equipment.
Drill
sample
recovery

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

Measures taken to maximise sample recovery and
ensure representative nature of the samples.

Whether a relationship exists between sample
recovery and grade and whether sample bias may
have occurred due to preferential loss/gain of
fine/coarse material.

Recoveries from historical drilling are unknown.
Actual recoveries from PRU diamond drilling
recorded in the database and averaged 96.7%
with no significant issues noted.

RC samples were visually checked for recovery,
moisture and contamination.

No relationship exists between sample recovery
and grade.
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)

All holes were field logged by company
geologists. Weathering, lithology, alteration,
structure, mineralogy and veining information
were recorded. RC chips are glued to boards as
a visual reference of every hole.

Logging of diamond core additionally recorded
recovery, core strength, orientation, roughness,
and
infill
type.
Diamond
core
was

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Criteria JORC Code explanation Commentary
photography.

The total length and percentage of the relevant
intersections logged.
photographed.

All drill holes were logged in full.
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.

HQ2 and NQ2 core was cut in half using a core
saw. All samples were collected from the same
side of the core.

RC samples were collected at the rig using riffle
splitters. Samples were predominantly dry. 1% of
samples were recorded as wet in the supplied
database in the ‘sampquality’ field.

Sampling of diamond core and RC chips uses
industry standard techniques. After drying the
sample is subject to a primary crush, then
pulverised so that 90% passes a -75um sieve.

Field QC procedures involved the use of certified
reference materials (1 in 20), and field duplicates
(1 in 20).

Field duplicates were taken on 1m composites
for RC using a riffle splitter.

Sample sizes are considered appropriate to
correctly represent the moderately nuggetty gold
mineralisation
based
on:
the
style
of
mineralisation, the thickness and consistency of
the intersections, the sampling methodology and
assay value ranges for Au.
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.

The analytical techniques used Fire Assay on 50g
samples or BLEG bottle roll on 1kg samples both
with AAS finish. This method approaches total
dissolution of most minerals.

No geophysical tools were used to determine any
element concentrations used in this resource
estimate.

Sample preparation checks for fineness were
carried out by the laboratory as part of internal
procedures to ensure the grind size of 90%
passing 75µm was being attained. Laboratory
QAQC includes the use of internal standards
using certified reference material, and pulp
replicates.
Certified
reference
materials
demonstrate that sample assay values are
accurate. Aaron Green of RPM visited the main
laboratory in October 2010.
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.

RPM has not independently verified significant
intersections of mineralisation.

No twin holes have been drilled. RPM has
recommended a twin hole drilling program to
provide further confidence in mineralisation
continuity.

Primary data is entered on hardcopies in the
field and then entered digitally using Log Chief
Software (Maxwell GeoServices). This data is
then directly imported into the PRU central
database (DataShed/Maxwell GeoServices).

Historically, data was entered onto hardcopy
sheets and then transcribed in Excel tables,

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Criteria JORC Code explanation Commentary
checked for accuracy, and then imported into
the master Access database.

Assay values that were below detection limit
were adjusted to equal half of the detection
limit value. Intervals with no samples were left
blank in the database (updated from the -9
value used byPRU).
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.

Prior to 2012, a local grid, including baseline,
was established at Edikan by Cluff Plc using
qualified surveyors. Qualified surveyors were
used to locate all drill collars in local grid co-
ordinates.

For recent drill programs, collars have been
located in UTM, WGS84, Zone 30N co-ordinates
and transformed to local grid. True azimuths
were converted to local by subtracting 43 from
the true value.

Local RL elevations were adjusted by adding
1,000m to avoid negative values. This was not
done for the previous resource estimates.

PRU drill holes are surveyed down hole at 10m
to 50m intervals using either Reflex or Flexit
multi-shot equipment. Historical RC holes have
not been down hole surveyed and are assumed
to be straight. The average depth of these holes
is 94m. Historical diamond holes were down
hole surveyed using either acid tubes or a single
shot camera.

The topographic surface used was a 2010
regional surface with localisedpit survey points.
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 dominant drill hole spacing is 40m by 40m.
20m by 20m spacing is used in one zone.

The mineralised domains have demonstrated
sufficient continuity in both geological and
grade continuity to support the definition of
Mineral
Resource,
and
the
classifications
applied under the 2012 JORC Code.

Samples have been composited to 1m lengths
using best fit techniques. Two residual sample
lengths were excluded.
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.

Drill holes are angled to grid south, which is
approximately perpendicular to the orientation
of the mineralised trends.

No orientation based sampling bias has been
identified in the data.
Sample security
The measures taken to ensure sample security.

Chain of custody is managed by PRU. Samples
are stored on site and collected by Intertek and
ALS employees. PRU employees have no further
involvement in the preparation or analysis of
the samples.
Audits
or
reviews

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

A review of sampling techniques was carried out
on each site visit by RPM the most recent in
2010.

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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.

The deposit is located within the Nanankaw
Mining Lease ML1110/1994 which is wholly
owned by PRU.

The tenements are in good standing. The Mining
Lease is valid until December 30, 2024.
Exploration
done by other
parties

Acknowledgment and appraisal of exploration by
other parties.

Previous companies to have held the ground
include Cluff Mining and Ashanti Goldfields,
exploration activities included RC and Diamond
drilling.
Geology
Deposit type, geological setting and style of
mineralisation.

The Edikan deposits occur near the western
flank of the Ashanti Greenstone Belt along the
Obuasi-Akropong gold corridor. The Central
Ashanti property is underlain principally by
Paleoproterozoic Birimian metasediments of the
Kumasi-Afema basin, positioned between the
Ashanti and Sefwi Greenstone Belts. The flysch
type
metasediments
consist
of
dacitic
volcaniclastics, greywackes plus argillaceous
(phyllitic) sediments, intensely folded, faulted
and metamorphosed to upper greenschist facies.
Minor cherty and manganiferous exhalative
sediments are locally present, and graphitic
schists coincide with the principal shear (thrust)
zones. Numerous small Basin-type or Cape
Coast-type
granitoids
have
intruded
the
sediments along several regional structures.
Gold mineralisation has been identified within
the same granite as that observed at the
neighbouring AAF deposit. The Mampong zones
are situated along the SW extension of the AAF
granite. Mineralisation at Mampong has also
been observed within a granite dyke 300m to
the south of the main granite.
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:
easting and northing of the drill hole collar
elevation or RL (Reduced Level – elevation
above sea level in metres) of the drill hole collar
dip and azimuth of the hole
down hole length and interception depth
hole length
If the exclusion of this information is justified on
the basis that the information is not Material and
this
exclusion
does
not
detract
from
the
understanding of the report, the Competent Person
should clearly explain why this is the case.

Drill hole locations are shown on the map within
the body of this Mineral Resource report.
Significant drill hole intersections have been
previously reported to the ASX.

In the opinion of PRU all material drill results
have been adequately reported.
Data
aggregation
In
reporting
Exploration
Results,
weighting
averaging techniques, maximum and/or minimum
grade truncations (e.g. cutting of high grades) and

Exploration drill results have been previously
reported by PRU.

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Criteria JORC Code explanation Commentary
methods cut-off grades are usually Material and should be
stated.
Where aggregate intercepts incorporate short
lengths of high grade results and longer lengths of
low grade results, the procedure used for such
aggregation should be stated and some typical
examples of such aggregations should be shown in
detail.

The assumptions used for any reporting of metal
equivalent values should be clearly stated.

No aggregation of intercepts was carried out.
Drilling intervals are predominantly even 1m, or
composites
of
2m
or
4m.
Mineralised
composites are re-split to 1m for re-assay.

Metal equivalent values are not being reported.
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’).

Drill holes are angled to local grid which is
approximately perpendicular to the orientation
of the mineralised trend.
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.

A plan showing Mampong drilling is included
within this Mineral Resource report.
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.

Drill holes have been accurately located by PRU
surveyors using the local grid system.

Exploration
results
have
been
previously
reported to the ASX and are not being reported
for this Mineral Resource update.
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.

Resource infill drilling has progressed over as
the size and extent of the mineralisation
became clear.
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.

Infill resource drilling is planned within the next
year to upgrade ‘in-pit’ portions of the current
Mineral Resource.

Along strike and down dip lode extensions have
been highlighted in the body of this Mineral
Resource report.

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Section 3 Estimation and Reporting of Mineral Resources

Criteria JORC Code explanation Commentary
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.

Data validation procedures used.

The data base is systematically audited by PRU
geologists. All drill logs are validated digitally by
the database geologist once assay results are
returned from the laboratory. In 2010, RUL
reviewed the logging of several holes and
validated the records in the database against
the drill core and logging boards. No significant
errors were noted.

RPM validated the 2013 data against previous
data from the 2009 estimate. No discrepancies
were found.

RPM also performed data audits in Surpac.
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.

Site visits have been conducted by David Price
(RUL) in January 2007, Paul Payne (RUL) in
January 2008, and Aaron Green (RPM) in
October 2010. On each occasion, the deposit
area, the core logging and sampling facility, and
drilling and sampling operations were viewed.
Aaron Green inspected the main laboratory
used by PRU. Notes and photos were taken.
Discussions were held with site personnel
regarding drilling and sampling procedures. No
major issues were encountered.
Geological
interpretation

Confidence in (or conversely, the uncertainty of)
the geological interpretation of the mineral
deposit.

Nature of the data used and of any assumptions
made.

The effect, if any, of alternative interpretations on
Mineral Resource estimation.

The use of geology in guiding and controlling
Mineral Resource estimation.

The factors affecting continuity both of grade and
geology.

The confidence in the geological interpretation
is considered to be good and is based on good
quality drilling.

The deposit consists of granite lodes of varying
geometry all striking generally east-west.
Extensional drilling has defined mineralisation
zones along strike from the 2009 interpretation.
The current interpretation is considered robust.

Outcropping of mineralisation and host rocks
within artisanal pits confirm the geometry of the
mineralisation.

Infill drilling has confirmed geological and grade
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 Mampong resource area extends over a
strike length of 1,750m from 23,520mE to
25,270mN and includes the 195m vertical
interval from surface at 1,175mRL to 980mRL.
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.

Using parameters derived from modelled
variograms, Ordinary Kriging (OK) was used to
estimate average block grades within all
domains.

Surpac software was used for the estimations.

High grade cuts ranging between 10g/t to 30g/t
were applied to selected domains and based on
statistical analysis. A total of 12 samples were
cut.

The parent block dimensions used were 5m NS
by 20m EW by 10m vertical with sub-cells of
1.25m by 5m by 2.5m. The parent block size was
selected on the basis of being approximately
50% of the average drill hole spacing in the
deposit.

RPM has completed two Mineral Resource

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Criteria JORC Code explanation Commentary

The availability of check estimates, previous
estimates and/or mine production records and
whether the Mineral Resource estimate takes
appropriate account of such data.

The assumptions made regarding recovery of by-
products.

Estimation of deleterious elements or other non-
grade variables of economic significance (eg
sulphur for acid mine drainage characterisation).

In the case of block model interpolation, the block
size in relation to the average sample spacing and
the search employed.

Any assumptions behind modelling of selective
mining units.

Any assumptions about correlation between
variables.

Description of how the geological interpretation
was used to control the resource estimates.

Discussion of basis for using or not using grade
cutting or capping.
estimates for the deposit since 2009. The 2013
update was based on the estimate from 2009.

No assumptions have been made regarding
recovery of by-products.

No estimation of deleterious elements was
carried out. Only Au was interpolated into the
block model.

An orientated ‘ellipsoid’ search was used to
select data and was based on parameters taken
from the variography (granite domain only). For
the sediment domain, the search ellipse was
orientated based on observed lode geometry.
Three passes were used for each domain. The
first pass used a range of 60m, with a minimum
of 10 samples. For the second pass, the range
was extended to 120m, with a minimum of 6
samples. For the final pass, the range was
extended to 240m, with a minimum of 2
samples. A maximum of 40 samples was used
for all 3 passes

Selective mining units were not modelled in the
Mineral Resource model. The block size used in
the model was based on drill sample spacing
and lode orientation.

Only Au assay data was available, therefore
correlation analysis was not possible.

The deposit mineralisation was constrained by
wireframes constructed using a 0.2g/t Au cut-off
grade in association with logged lithology codes.
The
wireframes
were
applied
as
hard
boundaries in the estimate.

Statistical analysis was carried out on data from 9
lodes. The high coefficient of variation and the
scattering of high grade values observed on the
histogram for some of the lodes suggested that
top
cuts
were
required
if
linear
grade
interpolation was to be carried out. As a result
high grade cuts ranging between 10g/t to 30g/t
were applied to selected domains, resulting in a
total of 12 samples being cut.

A three step process was used to validate the
model. A qualitative assessment was completed
by slicing sections through the block model in
positions coincident with drilling. A quantitative
assessment of the estimate was completed by
comparing the average Au grades of the
composite file input against the Au block model
output for all the resource objects. A trend
analysis was completed by comparing the
interpolated blocks to the sample composite
data within the granite domain. This analysis
was completed for 20m eastings and 10m bench
heights.
Validation
plots
showed
good
correlation between the composite grades and
the block model grades.

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Criteria JORC Code explanation Commentary

The process of validation, the checking process
used, the comparison of model data to drill hole
data, and use of reconciliation data if available.
Moisture
Whether the tonnages are estimated on a dry
basis or with natural moisture, and the method of
determination of the moisture content.

Tonnages and grades were estimated on a dry in
situ basis. No moisture values were reviewed.
Cut-off
parameters

The basis of the adopted cut-off grade(s) or
quality parameters applied.

The Mineral Resource has been reported at a
0.4g/t Au cut-off based on assumptions about
economic cut-off grades for open pit mining.
PRU are currently mining adjacent deposits
within the Edikan Project area.
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.

RPM has assumed that the deposit could
potentially be mined using open pit techniques.
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.

Extensive
metallurgical
test-work
was
completed on material from a number of
deposits within Edikan Project area, by AMMTEC
Pty Ltd in Perth for Cluff Plc in the early 1990’s.
This focused on CIL test-work on both oxide and
sulphide material and later to heap leach.
Preliminary amalgamation
and
cyanidation
results using bottle roll methodology confirmed
the free milling nature of both the oxide and
granite mineralisation.

No metallurgical testwork specific to Mampong
has
been
completed
by
PRU
however
metallurgical test-work was undertaken by PRU
in 2011 as part of the DFS for the adjacent
deposits.
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 Project is not subject to any environmental
liabilities
except
for
a
progressive
decommissioning and reclamation plan for the
closed Ayanfuri heap leach mine.
Bulk density
Whether assumed or determined. If assumed, the
basis for the assumptions. If determined, the
method used, whether wet or dry, thefrequency

Bulk density values were originally determined
at the nearby AAF deposit from direct
measurement of 738 diamond core samples of

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Criteria JORC Code explanation Commentary
of the measurements, the nature, size and
representativeness of the samples.

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.

Discuss assumptions for bulk density estimates
used in the evaluation process of the different
materials.
which 360 were conducted in-house by PRU and
378 completed by commercial laboratories.

A recent study by PRU determined that the
current density assigned to fresh granite was
likely too high. This assumption was based on a
better understanding of the granite lodes from
open pit mining activities which suggested the
material should be less dense than originally
expected. A program of submitting existing drill
core for analysis was instigated in early 2014. A
total of 254 grab samples from the open pit and
261 core samples were sent to commercial
laboratories for analysis. A total of 130 core
samples were sent to Intertek, and 131 core
samples and all the grab samples sent to ALS.
Results suggested the fresh granite material had
a density in the order of 2.7t/m3 and this has
been assigned to this material type in the
current RPM block model.

Measurements were determined by wax coating
samples and immersing in water.

RPM recommends an ongoing program of
submitting grab samples to Intertek for analysis.
Suitable core samples from any future diamond
drilling programs should be selectively sent for
analysis.
Classification
The basis for the classification of the Mineral
Resources into varying confidence categories.

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).

Whether the result appropriately reflects the
Competent Person’s view of the deposit.

The Mineral Resource was classified as Inferred
Mineral Resource based on data quality, drill
hole spacing, and continuity of the interpreted
zones. The data quality is good and the drill
spacing was mostly 40m by 40m however grade
variability within many of the mineralised zones
is high and continuity has not been verified.

The input data is comprehensive in its coverage
of the mineralisation and does not favour or
misrepresent
in-situ
mineralisation.
The
definition of mineralised zones is based on high
level geological understanding producing a
robust model of mineralised domains. This
model has been confirmed by infill drilling which
supported the interpretation. Validation of the
block model shows good correlation of the input
data to the estimated grades.

The Mineral Resource estimate appropriately
reflects the view of the Competent Person.
Audits
or
reviews

The results of any audits or reviews of Mineral
Resource estimates.

Internal audits have been completed by RPM
which
verified
the
technical
inputs,
methodology, parameters and results of the
estimate.
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

The Mampong Mineral Resource estimate has
been reported with a moderate degree of
confidence. The lode geometry and continuity
has been interpreted to reflect the applied level
of Inferred Mineral Resource. The data quality is

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Criteria JORC Code explanation Commentary
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 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.

These statements of relative accuracy and
confidence of the estimate should be compared
with production data, where available.
good and the drill holes have detailed logs
produced by qualified geologists. A recognised
laboratory has been used for all analyses.

The Mineral Resource statement relates to
global estimates of tonnes and grade.

The deposit has not been mined.

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ATTACHMENT 9

Dadieso Deposit

JORC Code (2012) Table 1

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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.

Drill holes included in the resource were
sampled using Reverse Circulation (RC) and
diamond drill (DD) holes on a nominal 40m by
40m grid spacing (with localised areas of 20m by
20m). A total of 160 holes were included in the
resource for a total 3,295m within the resource
wireframes. Holes were generally angled at 50°
towards grid west or east to optimally intersect
the mineralised zones.

Drill hole collars were picked up and down hole
surveyed by qualified surveyors. RC samples
were collected by a riffle splitter at 1m to 2m
intervals. Diamond core was cut in half using a
core
saw
with
sampling
at
geological
boundaries. All samples were collected from the
same side of the core. Sampling and QAQC
procedures were carried out to industry
standards.

Samples from the first 60 RC drill holes were
sent to Transworld Laboratory for 24hr bottle
roll with AAS finish. All subsequent RC samples
were analysed by 50g Fire Assay at ALS Kumasi.
Diamond half core samples analysed by 50g Fire
Assay and AAS finish.
Drilling
techniques

Drill type (eg core, reverse circulation, open-hole
hammer, rotary air blast, auger, Bangka, sonic,
etc) and details (eg core diameter, triple or
standard tube, depth of diamond tails, face-
sampling bit or other type, whether core is
oriented and if so, by what method, etc).

RC drilling comprising 105mm diameter face
sampling bit. Diamond drilling carried out with
HQ2 and NQ2 sized equipment.
Drill sample
recovery

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

Measures taken to maximise sample recovery and
ensure representative nature of the samples.

Whether a relationship exists between sample
recovery and grade and whether sample bias may
have occurred due to preferential loss/gain of
fine/coarse material.

Recoveries from historical drilling are unknown.
Actual recoveries from PRU diamond drilling are
recorded in the main Edikan database and
average 96% with no significant issues noted.
No actual recoveries were included in the data
supplied for the Dadieso deposit.

RC samples were visually checked for recovery,
moisture and contamination.
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.

All holes were field logged by company
geologists. Weathering, lithology, alteration,
structure, mineralogy and veining information
were recorded. RC chips are glued to boards as
a visual reference of every hole.

Logging of diamond core
also recorded
recovery, core strength, orientation, roughness,
and
infill
type.
Diamond
core
was
photographed.

All drill holes were logged in full.

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Criteria JORC Code explanation Commentary

The total length and percentage of the relevant
intersections logged.
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.

HQ2 and NQ2 core was cut in half using a core
saw. All samples were collected from the same
side of the core.

RC samples were collected at the rig using riffle
splitters. Samples were predominantly dry. Less
than 0.5% of samples were recorded as ‘wet’ in
the supplied data in the ‘sampquality’ field,
although 55% of records in this field are blank.

Sampling of diamond core and RC chips uses
industry standard techniques. After drying the
sample is subject to a primary crush, then
pulverised so that 90% passes a -75um sieve.

Field QC procedures involved the use of certified
reference materials (1 in 20), and field duplicates
(1 in 20).

Field duplicates were taken on 1m to 2m
composites for RC using a riffle splitter.

Sample sizes are considered appropriate to
correctly represent the moderately nuggetty gold
mineralisation
based
on:
the
style
of
mineralisation, the thickness and consistency of
the intersections, the sampling methodology and
assay value ranges for Au.
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.

The analytical techniques used Fire Assay on 50g
samples or BLEG bottle roll on 1kg samples both
with AAS finish. This method approaches total
dissolution of most minerals.

No geophysical tools were used to determine any
element concentrations used in this resource
estimate.

Sample preparation checks for fineness were
carried out by the laboratory as part of internal
procedures to ensure the grind size of 90%
passing 75µm was being attained. Laboratory
QAQC includes the use of internal standards
using certified reference material, and pulp
replicates.
Certified
reference
materials
demonstrate that sample assay values are
accurate. Aaron Green of RPM visited the main
laboratory in October 2010.
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.

RPM has not independently verified significant
intersections of mineralisation.

DKRC067 and DKRC068 are twinned holes and
display similar down hole grades. The east and
west dipping holes on 40m spacing result in
‘crossing’ of drill traces at depth.

Primary data is entered on hardcopies in the
field and then entered digitally using Log Chief
Software (Maxwell GeoServices). This data is
then directly imported into the PRU central
database (DataShed/Maxwell GeoServices).

Assay values that were below detection limit
were adjusted to equal half of the detection
limit value. Intervals with no samples were left
blank in the database (updated from the -9
value used byPRU).

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Criteria JORC Code explanation Commentary
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.

Prior to 2012, a local grid, including baseline,
was established at Edikan by Plc (Cluff) using
qualified surveyors. Qualified surveyors were
used to locate all drill collars in local grid co-
ordinates.

For recent drill programs, collars have been
located in UTM, WGS84, Zone 30N co-ordinates
and transformed to local grid. True azimuths
were converted to local by subtracting 43 from
the true value.

Local RL elevations were adjusted by adding
1,000m to avoid negative values. This was not
done for the previous resource estimates.

PRU drill holes are surveyed down hole at 10m
to 30m intervals using either Reflex or Flexit
multi-shot equipment. Historical RC holes have
not been down hole surveyed and are assumed
to be straight. The average depth of these holes
is 50m.

Topographic surface based on 1,181 historic pit
survey points and 1,955 topographic and drill
hole surveyed locations byPRU surveyors.
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 nominal drill hole spacing is 40m by 40m.

The mineralised domains have demonstrated
sufficient continuity in both geological and
grade continuity to support the definition of
Mineral
Resource,
and
the
classifications
applied under the 2012 JORC Code.

Samples have been composited to 2m lengths
using best fit techniques. One residual sample
length was excluded.
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.

Drill holes are angled to grid east and west,
which is approximately perpendicular to the
orientation of the interpreted mineralised
trends.

No orientation based sampling bias has been
identified in the data.
Sample security
The measures taken to ensure sample security.

Chain of custody is managed by PRU. Samples
are stored on site and collected by Intertek
employees. PRU employees have no further
involvement in the preparation or analysis of
the samples.
Audits or
reviews

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

A review of sampling techniques was carried out
on each site visit by RPM the most recent in
2010.

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

The deposit is located within the Dadieso
Prospecting Licence PL6/15, which expired on
31 December 2013 and was wholly owned by
PRU. An application for renewal has been made
with no known impediment as to the grant of a
renewal or as to future grant of a mining lease.

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Criteria JORC Code explanation Commentary
reporting along with any known impediments to
obtaining a license to operate in the area.
Exploration
done by other
parties

Acknowledgment and appraisal of exploration by
other parties.

Previous companies to have held the ground
include Cluff Mining and Ashanti Goldfields.
Exploration activities included RC and Diamond
drilling.
Geology
Deposit type, geological setting and style of
mineralisation.

The Edikan deposits occur near the western
flank of the Ashanti Greenstone Belt along the
Obuasi-Akropong gold corridor. The Central
Ashanti property is underlain principally by
Paleoproterozoic Birimian metasediments of the
Kumasi-Afema basin, positioned between the
Ashanti and Sefwi Greenstone Belts. The flysch
type
metasediments
consist
of
dacitic
volcaniclastics, greywackes plus argillaceous
(phyllitic) sediments, intensely folded, faulted
and metamorphosed to upper greenschist facies.
Minor cherty and manganiferous exhalative
sediments are locally present, and graphitic
schists coincide with the principal shear (thrust)
zones. Numerous small Basin-type or Cape
Coast-type
granitoids
have
intruded
the
sediments along several regional structures.
Gold mineralisation has been identified within,
or is associated with, the margins of a granitoid
intrusive which has intruded into a sequence of
metasediments. Mineralisation is typically 20-
120m wide and remains open at depth.
Mineralisation is associated with minor quartz
veining and sulphides which are predominantly
pyrite.
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:
easting and northing of the drill hole collar
elevation or RL (Reduced Level – elevation
above sea level in metres) of the drill hole collar
dip and azimuth of the hole
down hole length and interception depth
hole length
If the exclusion of this information is justified on
the basis that the information is not Material and
this
exclusion
does
not
detract
from
the
understanding of the report, the Competent Person
should clearly explain why this is the case.

Exploration results are not being reported. Drill
hole locations are shown on the map within the
body of this Mineral Resource report. Significant
drill hole intersections have been previously
reported to the ASX.

In the opinion of PRU all material drill results
have been adequately reported.
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.

Exploration drill results are not being reported.

No aggregation of intercepts was carried out.
Drilling intervals are predominantly even 1m, or
composites of 2m or 4m. Mineralised composites
are re-split to 1m for re-assay.

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Criteria JORC Code explanation Commentary

The assumptions used for any reporting of metal
equivalent values should be clearly stated.

Metal equivalent values are not being reported.
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’).

Drill holes are angled to local grid which is
approximately perpendicular to the orientation of
the mineralised trend.
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.

Exploration
results
have
been
previously
reported to the ASX and are not being reported
for this Mineral Resource update.
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.

Drill holes have been accurately located by PRU
surveyors using the local grid system.

Exploration
results
have
been
previously
reported to the ASX and are not being reported
for this Mineral Resource update.
Other
substantive
exploration
data
Other exploration data, if meaningful and material,
should be reported including (but not limited to):
geological observations; geophysical survey results;
geochemical survey results; bulk samples - size and
method of treatment; metallurgical test results;
bulk density, groundwater, geotechnical and rock
characteristics;
potential
deleterious
or
contaminating substances.

No other substantive work other than RC drilling
has been conducted at the deposit.
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.

No further work is currently planned at the
deposit.

Exploration
results
have
been
previously
reported to the ASX and are not being reported
for this Mineral Resource update.

Section 3 Estimation and Reporting of Mineral Resources

Criteria JORC Code explanation Commentary
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.

Data validation procedures used.

The data base is systematically audited by PRU
geologists. All drill logs are validated digitally by
the database geologist once assay results are
returned from the laboratory. In 2010, RUL
reviewed the logging of several holes and
validated the records in the database against
the drill core and logging boards. No significant
errors were noted.

RPM validated the 2013 data against previous
data from the 2009 estimate.

RPM alsoperformed data audits in Surpac.

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Criteria JORC Code explanation Commentary
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.

Site visits have been conducted by David Price
(RUL) in January 2007, Paul Payne (RUL) in
January 2008, and Aaron Green (RPM) in
October 2010. The Dadieso deposit was not
visited during any of these visits as it was
considered to be an early stage exploration
project.

On each occasion, the core logging and sampling
facility, and drilling and sampling operations
were viewed. Aaron Green inspected the main
laboratory used by PRU. Notes and photos were
taken. Discussions were held with site personnel
regarding drilling and sampling procedures. No
major issues were encountered.
Geological
interpretation

Confidence in (or conversely, the uncertainty of)
the geological interpretation of the mineral
deposit.

Nature of the data used and of any assumptions
made.

The effect, if any, of alternative interpretations on
Mineral Resource estimation.

The use of geology in guiding and controlling
Mineral Resource estimation.

The factors affecting continuity both of grade and
geology.

The confidence in the geological interpretation
is considered to be moderate.

The
deposit
consists
of
steeply
dipping
mineralised lodes. Infill drilling has supported
the model at localised areas although continuity
remains poor along the majority of some lodes.

Outcropping of mineralisation (evident from
extensive
shallow
workings
from
Artesial
miners)
confirms
the
geometry
of
the
mineralisation to a degree.

Infill drilling has confirmed geological and grade
continuity in localised areas.
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 Dadieso resource area extends over a strike
length of 890m (from -10,030mN to -9,140mN),
and includes the 200m vertical interval from
1,170mRL to 970mRL. The overall plan width of
the mineralised lodes is 300m and extends from
-400mE to -50mE.
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 availability of check estimates, previous
estimates and/or mine production records and
whether the Mineral Resource estimate takes
appropriate account of such data.

The assumptions made regarding recovery of by-
products.

Estimation of deleterious elements or other non-
grade variables of economic significance (eg
sulphur for acid mine drainage characterisation).

In the case of block model interpolation, the block
size in relation to the average sample spacing and
the search employed.

Using
parameters
derived
from
modeled
variograms, Ordinary Kriging (OK) was used to
estimate average block grades within the lodes.

Surpac software was used for the estimations.

A high grade cut of 20g/t was applied to all lodes
with the exception of Objects 14 and 24 where a
high grade cut of 10g/t was applied. A total of
10 samples were cut.

The parent block dimensions used were 10m NS
by 10m EW by 10m vertical with sub-cells of
2.5m by 2.5m by 2.5m. The parent block size
was
selected
on
the
basis
of
being
approximately 50% of the average drill hole
spacing in the deposit.

No previous mining has occurred at the deposit
(with the exception of Artesial mining where
production is unknown).

No estimation of deleterious elements was
carried out. Only Au was interpolated into the
block model.

An orientated ‘ellipsoid’ search was used to
select data and was based on parameters taken
from the variographyand orientated to

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Criteria JORC Code explanation Commentary

Any assumptions behind modelling of selective
mining units.

Any assumptions about correlation between
variables.

Description of how the geological interpretation
was used to control the resource estimates.

Discussion of basis for using or not using grade
cutting or capping.

The process of validation, the checking process
used, the comparison of model data to drill hole
data, and use of reconciliation data if available.
individual lode geometry. Three passes were
used for each domain. The first pass used a
range of 50m, with a minimum of 10 samples.
For the second pass, the range was extended to
100m, with a minimum of 6 samples. For the
final pass, the range was extended to 250m,
with a minimum of 2 samples. A maximum of 40
samples was used for all 3 passes.

No assumptions were made on selective mining
units.

Only Au assay data was available, therefore
correlation analysis was not possible.

The deposit mineralisation was constrained by
wireframes constructed using a 0.2g/t Au cut-off
grade in association with logged lithology codes.
The
wireframes
were
applied
as
hard
boundaries in the estimate.

A three step process was used to validate the
model. A qualitative assessment was completed
by slicing sections through the block model in
positions coincident with drilling. A quantitative
assessment of the estimate was completed by
comparing the average Au grades of the
composite file input against the Au block model
output for all the resource objects. A trend
analysis was completed by comparing the
interpolated blocks to the sample composite
data for the combined lodes. This analysis was
completed for 40m northings and 10m bench
heights.
Validation
plots
showed
good
correlation between the composite grades and
the block model grades.
Moisture
Whether the tonnages are estimated on a dry
basis or with natural moisture, and the method of
determination of the moisture content.

Tonnages and grades were estimated on a dry in
situ basis. No moisture values were reviewed.
Cut-off
parameters

The basis of the adopted cut-off grade(s) or
quality parameters applied.

The Mineral Resource has been reported at a
0.4g/t Au cut-off based on assumptions about
economic cut-off grades for open pit mining.
PRU are currently mining adjacent deposits
within the Edikan Project area.
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.

RPM has assumed that the deposit could
potentially be mined using open pit techniques.

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Criteria JORC Code explanation Commentary
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.

Extensive metallurgical testwork was completed
on material from a number of deposits within
Edikan Project area, by AMMTEC Pty Ltd in Perth
for Cluff Plc in the early 1990’s. This focussed on
CIL testwork on both oxide and sulphide
material and later to heap leach. Preliminary
amalgamation and cyanidation results using
bottle roll methodology confirmed the free
milling nature of both the oxide and granite
mineralisation.

Metallurgical testwork was undertaken by PRU
in 2011 aspart of the DFS.
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 Project is not subject to any environmental
liabilities
except
for
a
progressive
decommissioning and reclamation plan for the
closed Ayanfuri heap leach mine.
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.

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.

Discuss assumptions for bulk density estimates
used in the evaluation process of the different
materials.

A total of 956 bulk density determinations have
been undertaken at the Edikan Project.

814 samples were from primary rock, 48 were
from slightly weathered to strongly weathered
material, and 94 were from the transitional
zone, which is a fair reflection on the proportion
of sulphide Mineral Resources to oxide Mineral
Resources.

The bulk density of the mineralisation has been
determined with a high degree of confidence
from extensive sampling and measurements,
however additional samples specifically from
Dadieso should be taken in future drilling
programs.
Classification
The basis for the classification of the Mineral
Resources into varying confidence categories.

Mineral Resources were classified in accordance
with the Australasian Code for the Reporting of
Identified Mineral Resources and Ore Reserves
(JORC, 2012). The deposit was classified as
Inferred Mineral Resource based on data
quality, drill hole spacing, and continuity of
mineralisation. Recent infill drilling at the
deposit has reduced the predominantly 40m by
40m spaced drill centres to 20m by 20m in some
areas, however, the continuity of grade is poor
and detailed controls on the mineralisation are
poorly understood.

The input data is adequate in its coverage of the
mineralisation
and
does
not
favour
or
misrepresent in-situ mineralisation. Infill drilling
has confirmed the mineralisation continuity for
the main lodes and support the interpretation.
Validation of the block model shows good
correlation of the input data to the estimated
grades.

The Mineral Resource estimate appropriately

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Criteria JORC Code explanation Commentary

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).

Whether the result appropriately reflects the
Competent Person’s view of the deposit.
reflects the view of the Competent Person.
Audits or
reviews

The results of any audits or reviews of Mineral
Resource estimates.

Internal audits have been completed by RPM
which
verified
the
technical
inputs,
methodology, parameters and results of the
estimate.
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 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.

These statements of relative accuracy and
confidence of the estimate should be compared
with production data, where available.

The relative accuracy of the Mineral Resource
estimate is reflected in the reporting of the
Mineral Resource as per the guidelines of the
2012 JORC Code.

The Mineral Resource statement relates to
global estimates of tonnes and grade.

The deposit is not currently being mined.

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