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ENERGY METALS LTD Capital/Financing Update 2017

Dec 13, 2017

64845_rns_2017-12-13_67cc9647-caa9-42b3-b648-e9c6a730e83c.pdf

Capital/Financing Update

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ABN 63 111 306 533

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ASX ANNOUNCEMENT

14[th] December 2017

ASX Code - EME

For further information, contact:

Dr Weidong Xiang Energy Metals Limited

Telephone: 61 8 9322 6904 Facsimile: 61 8 9321 5240 Email:[email protected] Level 2, 28 Kings Park Road West Perth WA 6005

PO Box 1323 West Perth WA 6872

This report and further information are available on Energy Metals’ website at:

www.energymetals.net

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542 TONNES U3O8 MAIDEN JORC RESOURCE: MALAWIRI DEPOSIT (NT)

HIGHLIGHTS

  • Inferred resource of 542 tonnes U3O8 at 1,288 ppm (100ppm cut-off) obtained for the historic Malawiri uranium deposit, eastern Ngalia Basin, NT.

  • High grade deposit hosted in Mt Eclipse Sandstone buried by 80 to 100 m of younger cover.

  • Mineralisation style similar to EME’s Bigrlyi deposit.

  • Uranium potential of the undercover eastern Ngalia Basin (NT) highlighted.

Significant historic drill-hole intercepts from reprocessed gamma logs include:

  • 12.1m at 3,409 ppm eU3O8 from 164.6m in GCRD9

  • 6.1m at 2,105 ppm eU3O8 from 183.1m in GCRD9

  • 4.7m at 1,594 ppm eU3O8 from 189.0m in GCRD6

  • 11.9m at 946 ppm eU3O8 from 229.8m in GCRD21

  • 12.8m at 583 ppm eU3O8 from 126.2m in GCRD8

  • 12.4m at 577 ppm eU3O8 from 189.2m in GCRD3

Energy Metals Limited (ASX: EME) is pleased to advise that a uranium resource estimate has been obtained for the historic Malawiri deposit, located 30 km by road from Tilmouth Well in the eastern Ngalia Basin, Central Australia (Figure 1). The deposit lies on granted tenement ELR41 which is a joint venture between EME (52.1%) and Northern Territory Uranium Pty Ltd (NTU: 47.9%) with EME as operator of the JV.

The Malawiri deposit was discovered in 1980 by Central Pacific Minerals (CPM) following the discovery of the adjacent Minerva deposit by AGIP in 1978. Historical exploration work, including the drilling of 22 exploration holes, was carried out by CPM in the period 1980 to 1982. EME acquired CPM’s interest in the project in 2005, including all historical exploration records and drill core materials.

1

The Ngalia Basin, which is some 12,600 km[2] in size, is recognised as one of the Northern Territory’s significant and most prospective uranium provinces (JSU Ngalia Basin Uranium Mineral System Project, Northern Territory Geological Survey, Record 2012-003) . In 2014, EME began a program of systematic documentation and evaluation of historical uranium deposits and prospects located on its Ngalia Basin tenure. Because of CPM’s meticulously kept historical exploration records, it was recognised that these data would be of sufficient quality for JORC-compliant resource estimation purposes provided certain geological criteria were met. In 2016, EME drilled a rotary mud/ diamond core hole at Malawiri, MARD004, between CPM drill lines where mineralisation was previously encountered. The purpose of the hole was to confirm the continuity and tenor of historically known mineralisation as well as provide core materials for geochemical and geotechnical test-work including bulk density. The results of the 2016 drilling program, which were consistent with historical results, were announced to the ASX on 27[th] September 2016. A review of available data by EME’s resource consultants CSA Global Ltd confirmed that appropriate criteria were met to permit resource estimation work at Malawiri to proceed.

No mineral resource estimate has previously been undertaken for the Malawiri deposit.

Exploration Results

The Malawiri deposit is a tabular, sandstone-hosted, uranium deposit located in the eastern Ngalia Basin. It is broadly similar in mineralisation style to EME’s Bigrlyi deposit in the western Ngalia Basin. Mineralisation is hosted in the Carboniferous Mt Eclipse Sandstone, which at Malawiri consists dominantly of coarse arkose and arkosic sandstone, with lesser conglomerate and shale. At Malawiri the Mt Eclipse Sandstone is unconformably overlain by 80 to 100m of relatively unconsolidated gravelly sands, silts and clays of the Cenozoic Whitcherry Basin (Figure 1). The Palaeozoic-Cenozoic unconformity is marked by a silcrete cap and an underlying zone of kaolinised sandstone (weathered Mt Eclipse). Mineralisation is stratiform in nature and occurs within a number of sub-vertically oriented, stacked, tabular lenses confined by conglomerate marker beds. Uranium mineralisation tends to be variably distributed along strike and at depth due in part to the effects of a late, oxidative uranium remobilisation event that also caused hematite overprinting.

The dimensions of the Malawiri mineralised domain (Figure 2) are approximately 400m along strike with an average plan width of 10-15m and a maximum modelled plan width of 35m. Stratigraphy and mineralisation dips sub-vertically and the width of the mineralised intervals varies from 0.3m to 12.6m, averaging 3.2m thickness. The mineralisation model extends from beneath the kaolinised sandstone unit at approx. 100m depth to 250m below surface. Drill-hole collar locations and other drilling details for historical CPM drill-holes are provided in Annexure 1.

Uraninite is the dominant uranium mineral in the sub-surface and it occurs in close association with pyrite and detrital-origin phyllosilicate minerals including biotite, clays and chlorite. Carbonate cement is pervasive in mineralised zones.

All historic CPM drill-holes were logged by independent geophysical contractors Geoex, Adelaide, using downhole gamma probe tools (for further details see the commentary regarding JORC reporting in Appendix 1). The downhole gamma probe was used as the primary analytical tool to measure eU3O8 grade. Drill core samples were assayed for uranium, however, these data were not considered to be sufficiently representative to be used in the resource estimation.

2

Open file data from two historical AGIP holes were used to help constrain the along strike extension of mineralisation to the east.

Historically over 100 core samples were assayed by the so-called ‘closed can’ method at AMDEL laboratories, Adelaide, to determine the extent of possible radiometric disequilibrium; the results provide evidence for the existence of radium mobility relative to uranium and indicate the deposit is not in radiochemical equilibrium. This observation is has been confirmed by examination of comparative assay U3O8 data and gamma log eU3O8 data. Application of a disequilibrium correction (known as the Radioactive Equilibrium Factor or REF) is considered necessary to convert measured eU3O8 to actual U3O8 values (refer to JORC reporting commentary in Appendix 1 for further details).

Drill-hole information and gamma log data for all drill holes, including associated metadata and probe calibration records, were compiled from EME’s archives. Historical gamma logs were archived as a compilation of analogue printouts on paper charts; these were scanned at high resolution, digitised and converted to counts per second (cps) data at 10 cm intervals downhole. Using the calibration data and hole information the cps data were reprocessed to yield deconvolved eU3O8 values according to well established methods. Significant intercepts (minimum width 0.3m, maximum internal dilution 0.3m, cut-off grade 100ppm eU3O8, and grade x thickness value >100) are detailed in Annexure 2. Intercepts from EME’s 2016 drill-hole MARD004 have previously been reported. All relevant drilling data, gamma logging data and geological data including lithological logs have been converted to digital format, verified and loaded into EME’s database (a summary of the information is provided in Table 1 below).

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Figure 1. Map showing the location of the Malawiri Project on ELR41 in relation to EME’s surrounding exploration licence 24451 (green hatch), Ngalia Basin outline (dark blue), overlying Cenozoic basins (light blue). The Bigrlyi uranium deposit, towns, main roads (red) and drainages (blue) are also shown.

3

Table 1. Database Summary of information used in the Resource Estimation

Category Total
Number of drill holes 25*
Total metres drilled 5,550.05
Number of downhole surveyrecords 106
Number ofgamma logged intervals(at 10 cm) 50,289
Number of mineralised intervals based on 10 cm
gamma-logging
36
Number of closed can assays used for REF
estimationpurposes
102
Number of intervals with lithological data 671
Number of samples with measured bulk density 217

*22 CPM drill-holes, 2 AGIP drill-holes and 1 EME drill-hole. The AGIP holes, drilled to the east of Malawiri, do not have available gamma logs and were used to constrain lithological continuity and the extent of mineralisation only.

Land Tenure

The Malawiri deposit is located on granted joint venture tenement ELR41 (EME: 52.1%, NTU: 47.9%). ELR applications 27 to 32 adjoin ELR41 and are owned 100% by NTU; they largely cover the adjacent Minerva prospect which lies about 1 km to the ESE. However, a small proportion of the Malawiri deposit extends on to neighbouring tenement ELR28 to the immediate south of ELR41; accordingly, the resource has been truncated at the boundary so that only the portion of the resource residing on ELR41 is reported here. The ELRs are embedded within surrounding Exploration Licence 24451, which is part of EME’s 100% owned Ngalia Regional Project (Figure 1).

The Malawiri deposit is located on the Napperby pastoral lease over which a Native Title claim was determined by consent in 2013. Currently, resource areas are not affected by any Aboriginal heritage or cultural sites.

Resource Estimation Procedure

Mineralised envelopes were interpreted and wireframed using downhole gamma log data. The downhole eU3O8 data was converted to U3O8 grade by application of REF corrections to account for radiochemical disequilibrium associated with radium mobility. The wireframes were constructed on the basis of a sectional interpretation in which the boundaries were extrapolated to half the nominal section spacing beyond the extents of current drilling. Using the digital lithological logs, digital models were also generated for the unconformity surfaces (Figure 2).

The downhole U3O8 data were composited over mineralised intervals of 0.5 m width; and statistical and geostatistical analyses were then performed. The block model was created and filled following application of a coordinate transformation to provide a constant orientation (flattening) of mineralised bodies for interpolation purposes. Because the distribution of uranium grades consists of several populations, the Multiple Indicator Kriging (MIK) method was used for interpolation of grades in the block model. The dimensions of the parent blocks were set at 2 х 0.125 х 2 m without sub-celling. An average bulk density of 2.45 t/m[3] , as measured from Malawiri core samples, was used. The distribution of U3O8 grade values obtained is shown in Figure 3 and the resulting resource estimate, which is classified as inferred, is provided in Table 2 for 100 ppm U3O8 cut-off grade.

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Figure 2. Wireframe models showing the mineralised domain and unconformity-related surfaces together with drill-hole traces.

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Figure 3. Distribution of U3O8 grade for the Malawiri deposit.

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Summary

The Mineral Resources are summarised in Table 2 for a 100ppm U3O8 cut-off grade:

Table 2. Estimate of Mineral Resources for the Malawiri Deposit as at 14 December 2017

Category Volume,
'000 m3
Kilotonnes Bulk
Density,
t/m3
Grade
U3O8 ppm
U3O8
tonnes
U3O8 Mlb U% U, t
Inferred 172.0 421.3 2.45 1,288 542 1.20 0.109 460

Notes:

1. The Mineral Resources are for a 100% interest in the associated joint venture and not the Mineral Resources attributable to the individual joint venture partners.

2. Mineral Resources are based on 100 ppm cut-off grade per resource block.

3. Mineral Resources that are not Mineral Reserves do not have demonstrated economic viability.

4. Mineral Resources are based on JORC-2012 definitions.

5. Mineral Resources are based on a bulk density of 2.45 t/m[3] .

6. Calculations and unit conversions may not yield exact figures due to rounding.

The Mineral Resources have been classified and reported in accordance with JORC (2012) requirements. The resource classification is based on the assessed level of confidence in sample methods used, geological interpretation, drill spacing and geostatistical measures.

Because the resource is based on a relatively small number of drill holes compared with other deposits, Energy Metals believes there is scope for expansion of the resource particularly by along strike extensional drilling to the west and at depth where mineralisation is open. Additionally, the deposit geology could be repeated in folded Mt Eclipse strata within synclinal and anticlinal structures to the north of the current resource area.

Although Malawiri is a small deposit, it is relatively high grade. Due to the proximity of the larger Minerva deposit located approx. 1km to the ESE and determined by AGIP to be of similar grade, there is a possibility of a combined future mining development. However, little work has been done at Malawiri or Minerva since 1982; modern investigations of deposit metallurgy, hydrology, rock properties and additional uranium series equilibrium and drill test work will be required to advance the project in the medium term. Although current uranium market conditions are difficult, Energy Metals remains committed to its strategy of data compilation, resource evaluation and drill testing of historical uranium deposits on its Ngalia Basin tenure.

For and on behalf of the Board.

Weidong Xiang Managing Director 14[th] December 2017

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Competent Persons Statement

The information in this report that relates to Mineral Resource estimation is based on information compiled by Mr Dmitry Pertel, Principal Consultant Geologist, CSA Global Ltd and Dr Maxim Seredkin, Principal Consultant Geologist, CSA Global Ltd. Information in this report relating to the interpretation and determination of gamma probe results is based on information compiled by Mr Evgeny Sirotenko, consultant geophysicist, under supervision of Dr Maxim Seredkin, Principal Consultant Geologist, CSA Global Ltd. Mr Pertel is a member of the Australian Institute of Geoscientists (MAIG) and is an employee of CSA Global. Dr Seredkin is a Fellow of the Australasian Institute of Mining and Metallurgy (FAusIMM), a member of the Australian Institute of Geoscientists (MAIG), and is an employee of CSA Global. Mr Pertel and Dr Seredkin have sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which they are undertaking to qualify as Competent Persons as defined by the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves – The JORC Code (2012)”, and Mr Pertel and Dr Seredkin both consent to the inclusion in this report of the matters based on the information in the form and context in which it appears.

Information in this report relating to exploration results, data, cut-off grades and QAQC analysis is based on information compiled by Dr Wayne Taylor and Mr Daniel Jordan. Dr Taylor and Mr Jordan are both members of the AIG and full time employees of Energy Metals Ltd. They both have sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which they are undertaking to qualify as a Competent Person as defined in the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves – The JORC Code (2012)”. Dr Taylor and Mr Jordan both consent to the inclusion of the information in the report in the form and context in which it appears.

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Annexure 1. Collar coordinates and drill-hole details for historical CPM drilling at the Malawiri deposit, GDA94 datum, Zone 53.

HOLE ID DRILL
TYPE*
PRE-
COLLAR
DEPTH
(m)
TOTAL
DEPTH
(m)
DIP
Degrees
AZI-
MUTH
Magnetic
NORTHING
(MGA53)
EASTING
(MGA53)
HEIGHT
(RL) m
GCRD1 RM/DH 110.87 219.15 -90 180 7,491,689.89 232,429.36 569.36
GCRD2 RM/DH 147.00 188.40 -69 189 7,491,238.81 231,320.09 568.95
GCRD3 RM/DH 151.00 284.20 -70 197 7,491,265.57 231,264.12 569.06
GCRD4 RM/DH 156.00 263.30 -70 197 7,491,259.14 231,327.48 569.05
GCRH5 RM 88.00 88.00 -90 180 7,491,459.20 230,061.75 568.11
GCRD6 RM/DH 150.00 216.80 -65 197 7,491,285.72 231,337.97 569.13
GCRD7 RM/DH 156.00 250.70 -65 197 7,491,319.39 231,283.47 569.16
GCRD8 RM/DH 150.00 240.00 -65 190 7,491,265.00 231,187.00 569.16
GCRD9 RM/DH 171.00 257.00 -65 190 7,491,290.56 231,193.65 569.03
GCRD10 RM/DH 123.00 255.00 -65 190 7,491,308.51 231,075.08 568.86
GCRD11 RM/DH 162.00 183.00 -65 190 7,491,328.05 231,017.66 568.68
GCRD12 RM/DH 156.00 219.00 -75 190 7,491,321.86 230,953.96 568.54
GCRD13 RM/DH 144.00 211.50 -65 190 7,491,357.23 231,025.04 568.79
GCRD14 RM/DH 150.00 156.80 -65 190 7,491,347.35 231,084.96 568.91
GCRH15 RM 184.00 184.00 -75 190 7,491,352.20 231,086.03 568.89
GCRH16 RM 36.00 36.00 -75 190 7,491,285.95 231,192.17 568.82
GCRD17 RM/DH 157.00 298.20 -65 190 7,491,319.41 231,200.64 569.04
GCRD18 RM/DH 150.00 294.80 -75 190 7,491,313.56 231,076.35 568.88
GCRD19 RM/DH 148.00 261.00 -65 190 7,491,298.42 231,195.19 568.93
GCRD20 RM/DH 143.40 292.80 -70 190 7,491,362.13 230,849.10 568.46
GCRD21 RM/DH 138.40 255.00 -70 197 7,491,276.08 231,333.03 569.18
GCRD22 RM/DH 136.30 181.60 -65 197 7,491,244.48 231,255.76 569.03

*RM/DH = Rotary Mud/Diamond Core

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Annexure 2. Significant eU3O8 (Deconvolved Gamma Log) intercepts from the Malawiri deposit based on the criteria: Minimum width 0.3m, maximum internal dilution 0.3m, 100ppm eU3O8 cut-off grade; Grade x Thickness >100. Grade x Thickness (GT) values >1000 are highlighted in bold italics.

Hole ID From To Width (m)
*
Grade eU3O8
(ppm)
Cut-off (ppm) Grade x Thickness
GCRD2 137.40 139.20 1.80 1,514 100 2,726
incl. 138.20 139.20 1.00 2,498 500 2,498
GCRD2 140.80 141.50 0.70 150 100 105
GCRD2 142.40 147.00 4.60 460 100 2,114
incl. 144.20 145.30 1.10 1,267 500 1,394
GCRD2 148.60 151.50 2.90 395 100 1,145
incl. 150.60 151.20 0.60 1,100 500 660
GCRD2 180.50 183.40 2.90 605 100 1,755
incl. 181.20 182.30 1.10 1,264 500 1,391
GCRD3 183.90 185.10 1.20 135 100 162
GCRD3 189.20 201.60 12.40 577 100 7,158
incl. 191.40 193.50 2.10 1,036 500 2,175
incl. 199.60 200.90 1.30 2,099 500 2,728
GCRD3 214.70 216.50 1.80 182 100 328
GCRD3 218.60 224.10 5.50 695 100 3,824
incl. 219.30 221.50 2.20 1,525 500 3,355
GCRD3 226.40 230.00 3.60 143 100 516
GCRD4 172.80 177.50 4.70 1,231 100 5,787
incl. 173.80 177.10 3.30 1,631 500 5,384
GCRD4 190.80 192.30 1.50 342 100 513
incl. 191.50 191.90 0.40 1,035 500 414
GCRD4 202.50 205.20 2.70 505 100 1,363
incl. 203.30 204.50 1.20 797 500 956
GCRD6 189.00 193.70 4.70 1,594 100 7,493
incl. 190.40 193.40 3.00 2,380 500 7,141
GCRD6 207.60 209.00 1.40 254 100 356
GCRD8 122.90 123.90 1.00 105 100 105
GCRD8 126.20 139.00 12.80 583 100 7,467
incl. 126.70 127.20 0.50 595 500 298
incl. 127.30 131.90 4.60 1,058 500 4,869
incl. 136.50 137.80 1.30 797 500 1,036
GCRD9 164.60 176.70 12.10 3,409 100 41,243
incl. 165.90 168.90 3.00 11,774 500 35,322
incl. 174.20 176.30 2.10 2,343 500 4,921
GCRD9 179.40 181.30 1.90 153 100 290
GCRD9 183.10 189.20 6.10 2,105 100 12,838
incl. 186.20 188.70 2.50 4,792 500 11,979
GCRD11 116.70 118.90 2.20 190 100 419
GCRD11 125.40 126.80 1.40 123 100 172
GCRD11 134.30 135.40 1.10 137 100 150

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GCRD19 219.70 220.50 0.80 170 100 136
GCRD21 229.80 241.70 11.90 946 100 11,261
incl. 231.60 237.50 5.90 1,154 500 6,807
incl. 239.00 241.00 2.00 1,751 500 3,502
GCRD22 123.90 129.40 5.50 210 100 1,155

*Note: true widths of mineralised zones are approximately 30-50% of intercept width depending on inclination of hole.

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Appendix 1: JORC Table 1

The following commentary is provided to ensure compliance with the JORC (2012) requirements for the reporting of Mineral Resource Estimates as discussed above for the Malawiri Deposit located on tenement ELR41.

JORC Table 1 Section 1 – Key Classification Criteria

Criteria JORC Code explanation Commentary
Sampling
techniques
Nature and quality of sampling (e.g.
cut channels, random chips, or
specific
specialised
industry
standard
measurement
tools
appropriate to the minerals under
investigation, such as downhole
gamma sondes, or handheld XRF
instruments, etc.). These examples
should not be taken as limiting the
broad meaning of sampling.
Include
reference
to
measures
taken
to
ensure
sample
representivity and the appropriate
calibration of any measurement
tools or systems used.
Aspects of the determination of
mineralisation that are Material to
the Public Report. In cases where
‘industry standard’ work has been
done this would be relatively simple
(e.g. ‘reverse circulation drilling was
used to obtain 1 m samples from
which
3 kg
was
pulverised
to
produce a 30 g charge for fire
assay’).
In
other
cases
more
explanation may be required, such
as where there is coarse gold that
has inherent sampling problems.
Unusual
commodities
or
mineralisation types (e.g. submarine
nodules) may warrant disclosure of
detailed information
The primary sampling instrument at the Malawiri was the
downhole gamma tool (or ‘probe’) which was used to obtain
a total gamma count reading down each drill-hole. Drilling
was by rotary mud (RM) and diamond core (DD) drilling
methods with NNE-SSW oriented drill lines on 60 - 120 m
spacing and closer 30 m spacing within the primary
mineralised zones. Drill holes were sub-vertical (due to
unconsolidated overburden & unconformity at 100m depth) to
optimally intersect steeply-dipping mineralisation. Original
analogue gamma log data was digitised at 10 cm intervals
downhole and converted to standard format LAS files
followed by calculation of equivalent U3O8 (eU3O8) grades
(see below for further information on gamma log processing
procedures).
The total count gamma logging method used here is a
common method used to estimate uranium grade where the
radiation contribution from thorium and potassium is small
(as is the case for sandstone-hosted deposits of the Bigrlyi-
type considered here). Gamma radiation is measured from a
volume surrounding the drill hole that has a radius of
approximately 35 cm. Therefore the gamma probe samples a
much larger volume than drill spoil or drill core samples
recovered from a drill-hole of normal diameter; gamma
logging is considered to provide a more representative
sample of the mineralised body and is preferred over
geochemical assay of drill samples for resource estimation
purposes.
Estimates of uranium concentration determined from gamma
ray measurements are based on the initial assumption that
the uranium is in secular equilibrium with its daughter
products (radionuclides), which are the principal gamma ray
emitters along the U-series decay chain. If uranium is in
disequilibrium as a result of the redistribution (depletion or
enhancement)
of
uranium
relative
to
its
daughter
radionuclides, then the true uranium concentration in the
holes logged using the gamma probe will differ from that
reported by gamma measurements. For the present resource
estimation work at Malawiri an analysis of historical closed
can measurements indicates that a disequilibrium correction
(known as the Radioactive Equilibrium Factor or REF) is
necessary (see below).
Drilling
techniques
Drill
type
(e.g.
core,
reverse
circulation,
open-hole
hammer,
rotary air blast, auger, Bangka,
sonic, etc.) and details (e.g. core
diameter, triple or standard tube,
depth
of
diamond
tails,
face-
sampling bit or other type, whether
core is oriented and if so, by what
method, etc.).
Rotary mud (RM) and diamond drilling (DD) methods were
used by Central Pacific Minerals (CPM) between the years
1979 – 1982. The programs primarily consisted of RM pre-
collars to approximately 150m depth (unconformity) with BQ
and/or NQ DD tails. Three pure RM holes were drilled from
surface to target depth one of which included a water bore.
RM drilling used blade & tri-cone roller bits. Holes were
cased with 100-150mm PVC as well as NQ and or NW
casing to pre-collar depths. NQ, BW & BQ casing was run
>150 m depths. No orientation marks were observed on
historical core, however, geotechnical features were logged
and recorded by CPM.
Modern drilling by EME used the RM method to the
unconformity followed by NQ2 DD coring. RM pre-collar was
drilled with 4 3/4” roller bits, 3 7/8” PCD bits and cased off
with HQcasing. NQ2 DD tails were drilled to target depth. All

11

Criteria JORC Code explanation Commentary
DD cores were orientated using a NQ2 orientation tool set.
Drill sample
recovery
Method of recording and assessing
core and chip sample recoveries
and results assessed.
Measures
taken
to
maximise
sample
recovery
and
ensure
representative
nature
of
the
samples.
Whether
a
relationship
exists
between
sample
recovery
and
grade and whether sample bias may
have occurred due to preferential
loss/gain of fine/coarse material.
Drill spoil & core recovery is not relevant to the sampling
method used (i.e. downhole gamma logging). However, pre-
collar RM drill cuttings were collected by a timed interval
method factoring in mud density & viscosity, annulus size
and up-hole velocity of the fluids from depth. It should be
noted that the RM drilling method does not necessarily
provide an accurate sample due to loss of fines and potential
for up-hole contamination.
Core sampling recoveries in the DD tails were determined by
comparison of recovered core to the run drilled and this
information was recorded on the geological logging sheets.
CPM recorded core recoveries of >94% whilst EME’s modern
drill core recoveries were 100%.
To achieve maximum core recoveries CPM and EME both
cased off the pre-collars to avoid collapse of the overlying
unconsolidated Cenozoic units.
No relationship exists between sample recovery and grade
due to the type of sampling method applied (i.e. downhole
gamma logging).
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.
RM drill cuttings were logged at the time of drilling by CPM
geologists and the hard copy lithological logs were converted
to digital format by EME geologists using EME’s standard
codes.
Seventeen historical DD core holes were re-logged by EME
geologists for lithology, colour, grain-size, stratigraphic unit,
oxidation state, alteration, cementation, weathering and other
features; data was recorded digitally and core was
photographed. Additionally core was logged for structure
using a goniometer to obtain alpha/beta measurements, dip
& dip direction of varying structure types where possible. The
coded data was verified according to EME’s standard logging
look-up tables. The re-logs were found to be in good
agreement with previous logging records, which provided
confidence in the quality of original CPM logging.
Scintillometer and Niton portable XRF measurements were
undertaken on historical and modern core at 20 cm intervals
through mineralised zones
to confirm the width of
mineralisation.
EME geologists logged the modern RM cuttings and drill core
from hole MARD004 using in-house lithological and structural
templates. In addition, core was photographed and
mineralised intervals were later scanned by the hylog method
to
determine
spectral
mineralogy.
Scintillometer
measurements were undertaken over mineralised zones to
confirm the width of mineralisation. The coded data was
verified according to EME’s standard logging look-up tables
100% of relevant intersections have been logged.

12

Criteria JORC Code explanation Commentary
Subsampling
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
subsampling
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.
For historical holes core was originally split into samples of
half core for assay work. Half core was quartered for
duplicate checks. Historically, CPM assayed for uranium as
well as V, Cu, Cr and Au. The uranium assay data were not
used for the resource estimation work as they are not
considered
sufficiently
robust
nor
representative
in
comparison with the gamma logging measurements.
Historical closed can assay data undertaken by AMDEL on
102
samples was used to evaluate uranium series
disequilibrium and determine the Radioactive Equilibrium
Factor (i.e. the disequilibrium correction).
For modern hole MARD004, mineralised intervals were
sampled at 0.4m spacing and assayed for a complete range
of elements at ALS laboratories, Perth. Standard EME and
laboratory QAQC procedures were applied. Interval matched
uranium assay data was used to confirm the Radioactive
Equilibrium Factor but this data was not used directly for
mineral resource estimation purposes.
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 (e.g. standards, blanks,
duplicates,
external
laboratory
checks) and whether acceptable
levels of accuracy (i.e. lack of bias)
and
precision
have
been
established.
The
gamma
tools
used
for
downhole
gamma
ray
measurements were calibrated and operated by geophysical
contractors Geoex Pty Ltd of South Australia during the
period 1980-1982. Calibration information including k-factors
and deadtime corrections and hole information including hole
diameter, casing depths/type and fluid levels/type were
recorded for each hole. The accuracy and reproducibility of
the probe data were monitored using two on-site standard
radioactive sources (a low-level and a high-level source) and
the monitoring data was included on each paper log and
deemed satisfactory.
Historic drill holes were logged with two different gamma ray
tools depending on grade. The initial run was undertaken
with the L1 or lithology gamma probe which employed a
sensitive 4 x 1 inch NaI detector crystal. Intervals of
significant mineralisation (off-scale on the L1 probe) were re-
probed with the O1 or ‘ore’ gamma probe which employed
the less sensitive 1 x ¾ inch NaI detector crystal.
Eight of the 22 drill holes were logged with a neutron probe
for the purposes of downhole stratigraphic comparison. This
data has not been digitised or used for resource estimation
purposes.
The counts per second (cps) downhole gamma data were
recorded on paper charts with an analogue pen recorder; for
some holes the cps data was also recorded in digital printout
form for the O1 probe and CPM determined eU3O8 values
using a polynomial calibration equation. This data however
was not used for the present resource estimation work,
instead the original paper logs were scanned, digitised and
re-processed.
Logging parameters including the time constant, logging
speed and chart scale were recorded. Both L1 and O1 paper
logs were digitised by EME’s geophysical contractor and
converted into digital standard-format LAS files.
LAS file data were converted to equivalent U3O8 values
(eU3O8 in ppm) using the specified probe calibration factors
and taking into account drill hole size, fluid levels and other
parameters. The eU3O8 data was filtered (deconvolved) to
correct for smearing of the gamma signal at mineralised
interfaces so that true grades and thicknesses more closely
reproduce actualgrade. The eU3O8 grades were calculated

13

Criteria JORC Code explanation Commentary
by consultant geophysicist Mr Evgeny Sirotenko under the
supervision of Dr Maxim Seredkin using the well-established
methodology of Khaikovich and Shashkin, widely tested and
upheld in the evaluation of uranium deposits in Kazakhstan
and the former USSR.
Modern downhole gamma measurements on hole MARD004
were performed with a 33mm Auslog probe, serial number
S937. The probe was calibrated at the Adelaide test pits,
South Australia. The calibration data were evaluated by
consultant geophysicist Mr David Wilson of 3D Exploration
Pty Ltd and judged to be satisfactory.
The MARD004 downhole gamma log was recorded by EME
staff using Auslog equipment and software, and employing
standard, documented procedures. Hole information
including hole diameter, casing depths and type, and fluid
levels were recorded. The gamma log was output as a
standard-format LAS file, which was processed to yield
eU3O8 values by consultant geophysicist Mr David Wilson of
3D Exploration Pty Ltd.
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.
A LAS file from one historical hole with significant uranium
intersections was independently reprocessed by consultant
geophysicist Mr David Wilson of 3D Exploration Pty Ltd.
Comparison of eU3O8 grade composites between the Wilson
and Sirotenko datasets indicates that agreement is within 1%
which is deemed more than satisfactory.
No twinned holes are available from the historical dataset.
However, hole MARD004 was sited between two lines of
historical drill holes spaced 65m apart and provides
confirmation of the continuity and grade of historically defined
mineralised zones.
Historical data including paper gamma logs, assay certificates
and lithological logs were stored in archive boxes in EME’s
library. The data is a complete record of CPM’s exploration
works conducted from 1979 through 1983.
Historically, CPM undertook ‘closed can’ eU3O8 and uranium
assay measurements at The Australian Mineral Development
Laboratories (AMDEL), Adelaide, on 96 core samples (plus
additional repeats) in order to investigate potential uranium
series disequilibrium in the prospect. An evaluation of this
data, combined with check data from interval-matched assay
and eU3O8 values from hole MARD004, indicates mineralised
zones are affected by radium mobility and REF corrections are
deemed necessary. Relative to eU3O8grade the following REF
corrections have been determined: 50-250 ppm – 0.86, 250-
500 ppm – 1.08, >500 ppm – 1.27. The correction results in an
increase in U3O8 grade relative to the eU3O8 measurements
for all mineralisation >250ppm eU3O8.
The eU3O8 assay data was deconvolved and corrected for
radiochemical disequilibrium by application of a REF value as
discussed above.
Location of
data points
Accuracy and quality of surveys
used to locate drillholes (collar and
downhole surveys), trenches, mine
workings and other locations used
in Mineral Resource estimation.
Specification of the grid system
used.
Quality
and
adequacy
of
topographic control.
Historical hole collar locations were determined using three
independent datasets. The primary dataset comprised CPM’s
original exploration drill hole plans, which were scanned at
high resolution and carefully geo-referenced to allow extraction
of MGA hole coordinates. Drill collars locations were compared
with drill sites identifiable from Google Earth imagery, with the
same drill sites converted from CPM’s original local coordinate
grid. Agreement between the three data-sets was found to be
excellent and historic drillhole locations were accurately
identified.
After initial identification Energy Metals technicians surveyed
all drill holes at the deposit as well as the ERL corner boundary
pegs usingan Altus APS-3 RTK base receiver & rover(RTK

14

Criteria JORC Code explanation Commentary
DGPS). The precision quoted by Altus is 0.6cm in the
horizontal plane and 1cm in the vertical plane. A local base
station was established at a Survey Control Point via the
AUSPOS system. Elevations are derived AHD heights
computed using the AUSGeoid09. The centre of the drill collar
was measured.
The coordinates are located on the MGA94 grid, Zone 53
using the GDA94 datum (refer Annexure 2).
All holes were drilled sub-vertically between -65° & -75°
inclination with downhole deviation surveys undertaken in the
diamond tails at 30 m to 50 m intervals. Dip and azimuth
measurements were attained using a Pajari single shot tool or
occasionally by acid etch. Surveys of modern drillholes were
conducted using a Pathfinder multishot tool at 50 m intervals.
Magnetic declination is 005° NNW and this value was applied
to azimuths to convert to Grid North for modelling.
Topographic control was provided by a digital terrain model
(DTM) generated from radiometric and magnetic helicopter
survey data flown in 2014. Since surface relief is subdued and
the deposit is buried at an unconformity below 80 - 100 m of
cover sequences, the topography has a negligible effect on the
deposit modelling.
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 Malawiri deposit was drilled on NNE (010-020°) panels
spaced at 60 - 120 m. Within strongly mineralised zones infill
drilling was conducted on 30 m spaced panels with 10 – 20 m
step-outs (due to sub vertical body) to test down dip continuity.
EME and CSA Global consider the spacing sufficient to
establish continuity of geology and grade for the purposes of
estimation of an inferred mineral resource.
Historical downhole gamma logs were digitised at 10 cm
intervals and were composited for resource reporting
purposes.
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.
In general, Bigrlyi-style (tabular stratiform sandstone-hosted)
uranium mineralisation, of which Malawiri is an example,
exhibit no significant structural control. Mineralisation is
controlled by physical and chemical characteristics of the host
rock such as permeability and redox state and is influenced by
primary depositional and sedimentological features. In the
case of Malawiri a late oxidative overprint has affected the
distribution of mineralisation.
The deposit occurs in steeply dipping beds and was sampled
by mostly sub-vertical drill holes. The downhole gamma probe
data was subsequently corrected for mineralised zone
boundary effects by deconvolution. There is therefore no bias
of sampling related to orientation of the mineralised zones.
Sample
security
The measures taken to ensure
sample security.
Historic drill-core was geologically logged and sampled by
CPM geologists and field technicians in the period 1979 and
1982. Historical core was archived at the NTGS core storage
facility, Alice Springs, before being transported and securely
stored at EME’s Bigrlyi core storage facility in 2006. EME
geologists have verified the completeness of core materials
for each hole. EME has ensured that historically sampled
intervals match the lithological logs, and that core taken from
those intervals, match historical sample tables, dispatches
and receipts. Since 2005 EME has securely maintained a
complete set of CPM documentation from this period in its
archives including original gamma log traces. EME
geologists managed the chain of custody of samples using
well established internal procedures: sample preparation,
dispatch and tracking is managed by the project geologist,
the Radiation Safety Officer and database administrator. The
secure transport of all samples is documented according to
the company’s Radiation Management Plan.

15

Criteria JORC Code explanation Commentary
Audits or
reviews
The results of any audits or reviews
of sampling techniques and data.
A review of gamma-ray logging reprocessing procedure was
undertaken by a third party consultant. The aim was to check if
there was a difference between modern and reprocessed
historical gamma-ray log results using the different processing
techniques. The results are in agreement with less than 1%
difference in the outcomes providing a high level of confidence
in the data.

JORC 2012 Table 1 Section 2 – Key Classification Criteria

Criteria JORC Code explanation Commentary
Mineral
tenement and
land tenure
status
Type,
reference
name/number,
location and ownership including
agreements or material issues with
third parties such as joint ventures,
partnerships, overriding royalties,
native title interests, historical sites,
wilderness or national park and
environmental settings.
The security of the tenure held at
the time of reporting along with any
known impediments to obtaining a
licence to operate in the area.
The security of the tenure held at
the time of reporting along with any
known impediments to obtaining a
licence to operate in the area.
Granted joint venture tenement ELR41 covers the Malawiri
deposit which is a joint venture between EME (52.1%) and
Northern Territory Uranium Pty Ltd (NTU: 47.9%). EME is the
operator of the joint venture. ELR applications 27 to 32 adjoin
ELR41 and are owned 100% by NTU; they largely cover the
adjacent Minerva prospect, however a small proportion of the
Malawiri resource extends on to ELR28 which is located
immediately to the south of ELR41. The ELRs are embedded
within surrounding EL24451 which is part of EME’s 100%
owned Ngalia Regional Project.
A Native Title Claim covering the Napperby pastoral lease on
which the Malawiri deposit is located, was granted by consent
on 2-July-2013. The Alherramp Ilewerr Mamp Arrangkey
Tywerl Aboriginal Corporation is the relevant Registered Native
Title Body Corporate and holds the native title interests on
behalf of the traditional owners.
ELR41 is covered by AAPA Authority Certificate C2014/116
issued on 29th August 2014. No significant heritage or sacred
site issues were identified on ELR41.
ERL41 is located on the northern margin of the Lake Lewis
Site of Conservation Significance (SOCS Site No. 54).
At the time of reporting there are no known impediments which
could affect an application for a licence to operate in the area.
Exploration
done by other
parties
Acknowledgment and appraisal of
exploration by other parties.
Most of the exploration data used for resource estimation
purposes is the result of drilling programs undertaken by CPM
over the period 1979 to 1982. EME acquired CPM’s interest in
the project in 2005 including all historical data and archived
drill core
Geology Deposit type, geological setting and
style of mineralisation.
The Malawiri deposit is a Bigrlyi–style, tabular, stratiform, sub
vertical, sandstone-hosted uranium deposit of Carboniferous
age located within the Ngalia Basin in the Northern Territory.
The deposit is unconformably overlain by Cenozoic cover
sequences of between 80-100m thickness

16

Criteria JORC Code explanation Commentary
Drillhole
Information
A
summary
of
all
information
material to the understanding of the
exploration
results
including
a
tabulation
of
the
following
information
for
all
Material
drillholes:

Easting and northing of the
drillhole collar

Elevation or RL (Reduced Level
– elevation above sea level in
metres) of the drillhole collar

Dip and azimuth of the hole

Downhole
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.
Refer to Annexure 1. All information relevant to hole MARD004
has previously been reported to the ASX (see announcement
of 27-Sept-2016).
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 results, i.e. mineralised intercepts, are reported
as equivalent U3O8 values (eU3O8) from processed gamma
logs. For reporting purposes (see Annexure 2) significant
gamma log intersections have been composited from 10 cm
deconvolved eU3O8 values using the following criteria: a cut-
off grade of 100 ppm U3O8, a minimum thickness of 0.3 m, a
maximum internal dilution of 0.3 m, no external dilution and a
grade x thickness value of >100.
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 drillhole angle is
known,
its
nature
should
be
reported.
If it is not known and only the
downhole lengths are reported,
there should be a clear statement
to this effect (e.g. ‘downhole length,
true width not known’).
Based on structural measurements from geological logging
of drill core by CPM & EME geologists, sandstone beds
hosting mineralisation are steeply dipping (broadly between
70° and 88° degrees) toward the north. All CPM & EME
holes have been drilled toward the south at between -65° to -
75° and true widths of intersections are within the range 30
to 50% of the reported downhole widths.

17

Criteria JORC Code explanation Commentary
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
drillhole
collar
locations
and
appropriate sectional views.
.
Balanced
reporting
Where comprehensive reporting of
all Exploration Results is not
practicable, representative
reporting of both low and high
grades and/or widths should be
practiced to avoid misleading
reporting of Exploration Results.
All significant results have been reported. Historical results
have previously been reported by CPM and are available as
open file reports from the NTGS.
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.
Bulk density measurements were undertaken on historical
and modern core samples (see below for further details).
Petrographic work was conducted by the CSIRO in 2015 and
has shown a close association between uranium and detrital-
origin phyllosilicate minerals including biotite, clays and
chlorite. It was found that uranium minerals (uraninite)
typically occur at the grain-to-grain contacts between K
feldspar and quartz and as replacement of pyrite along
cleavage planes within biotite and chlorite. Exposure to
oxidising fluids after uranium precipitation resulted in K-
feldspar dissolution, removal of uranium and precipitation of
hematite. Uranium is preserved in patches where detrital
grain contacts were not exposed to the late fluids and where
uranium was protected within low permeable micas and
clays.
Measurements of Pb-isotope ratios in mineralised core from
MARD004 indicate substantial disturbance of the Pb-U
isotopic system likely reflecting mobility and re-distribution of
U and Pb on the metre to decimetre scale within 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.
Subject to economic conditions, future exploration activities
are proposed to test for extensions of mineralisation along
strike to the west and within potential stratigraphic repeats
associated with adjacent folded units of the Mt Eclipse
Sandstone.

JORC 2012 Table 1 Section 3 – Key Classification Criteria

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.
Historical data used in the Mineral Resource estimate was
sourced from the original hardcopy. Hardcopy data was
converted to digital format and collated, tabulated and verified
before being validated upon importation into EME’s Geobank
database. CSA Global were provided with a validated
Micromine database by EME. Relevant tables from the
database were exported to Micromine .DAT format for import
into Micromine 2013 software prior to use in the Mineral
Resource estimation.

18

Criteria JORC Code explanation Commentary
Validation of all imported data included checks for missing,
duplicated and/or incorrectly recorded collar locations, survey
data, sample data, gamma log data and lithological log data.
Original historical gamma logs were reprocessed to yield
eU3O8 (ppm) values which correlated well with the historical
information stored in EME’s archives.
Site visits Comment
on
any
site
visits
undertaken
by
the
Competent
Person and the outcome of those
visits.
If
no
site
visits
have
been
undertaken, indicate why this is the
case.
No site visits were undertaken by the Competent Person
(Mineral Resource Estimation) or CSA Global staff.
CSA has relied on EME for all data regarding the deposits,
and given the current stage of the project, considers this
appropriate.
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.
There is a reasonable level of confidence in the geological
interpretation of
the
Malawiri
deposit. Although steeply
dipping, the host sandstone stratigraphy is traceable and
continuity
between
drill
holes
and
sections
can
be
demonstrated. Geological controls such as the dip of the
sedimentary units and the identified conglomerate and
siltstone marker beds have been used to constrain the
extrapolation of mineralisation within stratigraphic bounds.
Geological structure and gamma logging have formed the
basis for the geological interpretation. REF corrections have
been determined and applied as discussed above.
Further work may be required to better define the limits of the
mineralisation, particularly along strike, but no significant
downside changes to the currently interpreted mineralised
volume are anticipated.
Mineralisation is mainly hosted in partially oxidised coarse to
very
coarse
(sometimes
pebbly)
arkose
and
arkosic
sandstone. A common characteristic is that uranium
mineralisation is closely associated with a late hematitic
(oxidative) overprint. The hematitic mineralised zones are
often carbonate rich.
Grade continuity is controlled by redox zonation within the
partially oxidised sandstones and siltstones.
The deposit is hosted along the southern margin of the Ngalia
Basin, which is a deformed, elongate intracratonic depression
about 300 km long (east-west) and 40 km wide (north- south)
on average. This basin is filled with late Proterozoic to
Palaeozoic
aged
sedimentary
rocks,
predominantly
continental-marine arkosic sandstone, and Neoproterozoic
glacigene deposits and quartzite.
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.
Mineralisation is present in a series of multiply stacked lenses
that are variably distributed along strike and at depth due to
probable epigenetic modification. The dimensions of the
Malawiri mineralised domain is approximately 400 m along-
strike with an average plan width of 10-15 m and maximum
modelled plan width of 35 m.. The mineralised interval varies
from 0.3 m to 12.6 m, averaging 3.2 m. The model extends
from the unconformity surface at approx. 80m depth to 250 m
below surface.
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,
Gamma logging has been used for the definition of
mineralised intervals and interpretation (wireframing) of
mineralisation. The model consists of 36 mineralised domains
defined by wireframe models.
Grade estimation was carried out using the Multiple Indicator
Kriging (MIK) method using Micromine 2013 software.
Downhole and directional indicator semivariograms have been
used to define the distance of interpolation. No top cut of
extreme grade values was undertaken.
No previous resource estimation has been undertaken for the
Malawiri deposit.

19

Criteria JORC Code explanation Commentary
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 (e.g. 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 drillhole
data, and use of reconciliation data if
available.
No assumptions have been made regarding recovery of by-
products.
No other elements were estimated.
The block model was constructed using a 2 m E by 0.125 m N
by 2 m RL parent block size, without sub-celling for domain
volume resolution. The parent cell size was chosen on the
basis of the morphology of mineralised lenses and in order to
avoid the generation of unrealistically large blocks.
The search ellipse radii were determined from the ranges of
semivariograms: the main direction being along strike of
mineralised bodies (range 44 m), the second direction being
down dip of mineralised bodies (range 20 m) and the range of
the third direction was set at 12 m. Search ellipsoid
parameters are in the table
No selective mining units were assumed in this estimate.
Geological boundaries were used to guide the interpretation of
mineralised lenses. Specifically, mineralisation is hosted by
steeply dipping (approx. 80°) Mt Eclipse Sandstone. Grade
envelopes at 100 ppm U3O8 were defined for interpretative
purposes.
A 100 ppm U3O8 cut-off grade was applied to mineralisation
inside envelopes. No top cut has been applied.
Validation of the block model consisted of a comparison
between the block model volume and the wireframed volumes.
Grade estimates were validated by visual comparison with the
drill data. Grade estimation was verified by IDW2 without a top
cut applied and with a top cut of 10,000 ppm U3O8 applied.
The block model compared favourably with grade composites
for a series of sections in different directions (east).
No reconciliation data is available at this early stage of the
project.
Runs
Search radius
Coefficient to
search radius
Minimum no.
ofpoints
Maximum no.
ofpoints
Minimum no.
of drillholes
1
5 x 5 x 1
1
1
20
1
2
35 x 35 x 1
0.667
3
20
2
3
70 x 70 x 1
0.667
3
20
2
4
70 x 70 x 1
1
3
20
2
5
140 x 140 x 2
1
1
20
1
6
210x 210x 3
2
1
20
1
7
280 x 280 x 4
3
1
20
1
8
350 x 350 x 5
4
1
20
1
9
700 x 700 x 10
5
1
20
1
Moisture Whether the tonnages are estimated
on a dry basis or with natural
moisture,
and
the
method
of
determination
of
the
moisture
content.
The tonnages are estimated on a dry basis.
Cut-off
parameters
The basis of the adopted cut-off
grade(s)
or
quality
parameters
applied.
A cut-off grade of 100 ppm U3O8 (116 ppm eU3O8) has been
used for interpretation and a cut-off grade of 100 ppm U3O8
has been used for resource reporting. Based on CSA’s
experience with this type of deposit, this is considered a
reasonable cut-off grade which could result in eventual
economic extraction.
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
At this stage of resource development it is assumed that
mining
would
be
by
underground
methods.
Future
hydrogeological investigations and leaching tests would be
useful
in determining whether solution mining may be
possible.

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Criteria JORC Code explanation Commentary
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.
Metallurgical and hydrological test work is required to
determine if the deposit is amenable to solution mining. There
is a requirement for a certain level of natural permeability and
for mineralisation to occur below the water table if in-situ
recovery is to be considered. Hydrological pumping cluster
tests would need to be undertaken if the deposit is found to be
amenable to in-situ extraction processes.
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.
No detailed assumptions regarding possible waste and
process residue options have been made at this early stage.
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 testing was carried out on both mineralised and
un-mineralised drill core. The dataset comprises 146 in-house
bulk density measurements of historical core from 16 holes
and 38 bulk density measurements of mineralised core from
hole MARD004 undertaken by ALS laboratories, Perth. The
main rock types found at Malawiri are pebble conglomerate,
arkose, arkosic sandstone and shale, all of which may be
mineralised.
Density estimates were obtained using the Archimedes
method. For the in-house measurements the balance was
calibrated using two standard weights. Hairspray was used to
seal the exterior to account for natural porosity (voids) when
necessary.
Average bulk densities are as follows: pebble conglomerate:
2.48 +/- 0.07; arkose: 2.42 +/- 0.06; mineralised arkose: 2.45
+/- 0.06; arkosic sandstone 2.44 +/- 0.06; shale: 2.52 +/- 0.06
(1sd) t/m3
The average bulk density of mineralised core is 2.45 t/m3 and
this value has been applied to all material in the models.

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Criteria JORC Code explanation Commentary
Classification The basis for the classification of the
Mineral
Resources
into
varying
confidence categories.
Whether appropriate account has
been taken of all relevant factors (i.e.
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.
CSA
Global
has
considered
several
factors
in
the
classification of the Mineral Resources such as search ellipse
dimensions, geological data and exploration drill-hole grids.
The Malawiri deposit has been classified as Inferred due to
consideration of: exploration grid density; structural disposition
of ore bodies relative to host units; variability of mineralised
lenses; search ellipse dimensions relative to semi-variogram
ranges; and radiochemical disequilibrium.
The Inferred classification has taken into account all available
geological and sampling information, and the classification
level is considered appropriate.
The Mineral Resource estimate appropriately reflects the
views of the Competent Persons.
Audits or
reviews
The results of any audits or reviews
of Mineral Resource estimates.
Internal audits were completed by CSA Global which verified
the technical inputs, methodology, parameters and results of
the estimate. No external audit of the MRE has been
undertaken
Discussion of
relative
accuracy/
confidence
Where appropriate, a statement of
the relative accuracy and confidence
level
in
the
Mineral
Resource
estimate using an approach or
procedure deemed appropriate by
the Competent Person. For example,
the
application
of
statistical
or
geostatistical procedures to quantify
the relative accuracy of the resource
within stated confidence limits, or, if
such an approach is not deemed
appropriate, a qualitative discussion
of the factors that could affect the
relative accuracy and confidence of
the estimate.
The
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 Inferred
as per the guidelines contained in the 2012 JORC Code.
The resource statement refers to global estimation of tonnes
and grade.
No production data is available for comparison.

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