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LEFROY EXPLORATION LIMITED Capital/Financing Update 2022

Dec 4, 2022

65225_rns_2022-12-04_27e7a90e-8d13-4ba6-a3b6-e30cff25c827.pdf

Capital/Financing Update

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ASX RELEASE-5 December 2022
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Burns Resource Drill-out – Update #3 Multiple Gold Intercepts Continue to Expand Burns

T

  • The Burns Resource Drill-out program consists of 80 RC holes over 700m of strike length, with each hole evaluating a vertical depth of approximately 200m from surface. Sixty-one holes have now been completed, with 9 priority holes of the remaining 19 holes to be completed before the end of December 2022.

  • Additional gold-only assay results have been received for four holes located on Lake Randall, LRR004-LRR007, and one land hole LEFR353. The holes are located on two 40m spaced sections north of the Burns Baseline (0N) section which contains discovery hole, LEFR260.

  • The best gold intercepts were returned in holes LEFR353 and LRR004, both hosted within the Central Porphyry zone, as follows:

  • LEFFR353 - 48m @ 1.11g/t Au from 204m to EoH, including 4.0m @ 7.06g/t Au from 217m

  • LRR004 – 138m of mineralisation, including

    • 38m @ 2.04 g/t Au from 27m, including 17m @ 3.90g/t Au from 38m, and

    • 100m @ 0.47 g/t Au from 93m, including 8m @ 2.02 g/t Au from 100m

  • The results from the Burns Resource drill-out continue to deliver multiple drillholes intersecting long downhole intervals of gold mineralisation and confirm the company’s interpretation of the Burns geological model. This includes the existence of a broad, south-plunging, higher-grade gold zone within a structural trend that continues north under Lake Randall.

  • Based on these results, the Company has prioritised three additional RC holes to further evaluate this higher-grade zone where previous drill rig access was limited by terrain at the lake shoreline.

  • Copper and multi-element results remain pending and are expected to be returned between later in December 2022 and January 2023.

  • The maiden Burns Mineral Resource estimate for the shallow part of the mineralised system is on schedule to be finalised in Q1/2023.

Lefroy Exploration Managing Director Wade Johnson said, “It is extremely rewarding for Lefroy to continue to receive such positive assay results, particularly while the drill rods for this resource program continue to spin. These new, broad gold intersections reinforce the Company’s geological model for Burns, first put forward 18 months ago, and which is a credit to our dedicated technical team. We eagerly await the associated copper results which are pending, which we anticipate will complement the already returned gold assays, increase the value of the Resource being calculated and further demonstrate that Burns is a large Archaean copper-gold system.”

E: [email protected] T: +61 8 9321 0984 ARBN: 052 123 930

Australian Registered Office Level 3, 7 Rheola St West Perth, 6005

ASX Code: LEX Shares on Issue: 146M Market Capitalisation: $39m

www.lefroyex.com

ASX Announcement 5 December 2022

Lefroy Exploration Limited (ASX: LEX) (“Lefroy” or “the Company”) is pleased to report on the third batch of gold assay results for the Burns Resource drill-out program, currently underway at the Burns Copper (Cu)/Gold (Au) Project, which is within the Company’s wholly owned Eastern Lefroy Gold Project located 70km southeast of Kalgoorlie.

Burns is an intrusion-related Au-Cu-molybdenum (Mo) and silver (Ag) mineral system, hosted by multiple Archaean-age diorite-porphyry intrusives and high-magnesium basalt rocks. The Company considers this Au-Cu-Mo-Ag intrusion-related style of mineralisation to be entirely new to the Eastern Goldfields Province (EGP) of Western Australia.

A maiden 22-hole Reverse Circulation (RC) drill program completed in Jan-Feb 2021 at Burns intersected a spectacular gold and copper interval in hole LEFR260, returning 38m @ 7.63g/t Au and 0.56% Cu from 134m in diorite porphyry. The results from that RC program provided the geological and geochemical data that highlighted the unique geological characteristics of Burns and are a key guide to subsequent and ongoing exploration activity.

Further targeted aircore, RC and diamond drilling at Burns since January 2021 has established a broad footprint to the system, which extends north beneath Lake Randall, and whose limits of mineralisation are still to be fully defined. The system may extend for 2000 metres or more along strike, based on drilling between Lovejoy in the north and the main Burns Central area in the south.

Reverse Circulation (RC) Resource Drill Program

In October 2022, the Company commenced the Burns Resource drill-out program, originally planned at 15,000 metres of drilling, to evaluate the Burns Central system to 200 metres vertical from surface and over 700 metres of strike (Refer LEX ASX Release 6 October 2022). The data from this program, when combined with previous drilling data, will evaluate the three key geological domains at Burns Central (Central Porphyry, Western basalt, and Eastern deformation zone) and support the compilation of the Mineral Resource Estimate (MRE), scheduled to be finalised in Q1/2023.

To date, 61 holes for 15,060 metres have been completed, both onshore (land-based) and offshore on Lake Randall (salt-lake based refer to Figure 5). Drill spacing is a nominal 40 metre by 40 metre grid pattern, with angled holes planned to a nominal final downhole depth of 250 metres.

As previously reported, the first batch of gold-only assay results for drill holes, LRR001-LRR003 on the 160N section (Figures 1 & 2) (Refer LEX ASX Release 23 November 2022), followed-up the multiple gold and copper intersections outlined in previous aircore drilling located north of LEFR260 and in Lake Randall.

These holes returned multiple, consistent, broad zones of gold mineralisation hosted by altered basalt and diorite porphyry, including an outstanding interval of gold mineralisation of 103m @ 1.65 g/t gold from 25m, including 38m @ 3.83 g/t gold from 26m in hole LRR003 . Holes LRR001 and LRR002 returned lower tenor anomalous gold results over 18m downhole intervals, primarily located within the oxide zone, interpreted to be part of flat lying supergene zone.

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ASX Announcement 5 December 2022

More recently, gold-only assay results were returned for holes LRR004-007 located on Lake Randall and hole LEFR353 located on shore (Figure 1). These holes were completed to final downhole depths ranging from 252 – 258m and returned multiple intervals of broad gold mineralisation hosted in predominantly altered diorite-porphyry and lesser basalt, which included higher-grade gold zones within them. The best mineralised zones were intersected in holes, LEFR353 and LRR004 (Table 1), including:

LEFFR353:

  • 48m @ 1.11 g/t Au from 204m to end of hole (EoH), including

4.0m @ 7.06g/t Au from 217m

LRR004:

  • 38m @ 2.04 g/t Au from 27m, including 17m @ 3.90g/t Au from 38m and;

  • 100m @ 0.47 g/t Au from 93m, including 8m @ 2.02 g/t Au from 100m

This new, broad zone of gold mineralisation intersected in hole LEFR353, has successfully extended mineralisation by approximately 50 metres down dip from previous drill hole LEFR285, which also ended in gold mineralisation (Figure 2). It also supports the Company’s geological model for Burns and the increasing scale of the system. This includes a higher-grade south-plunging zone that is coincident with a north-south-trending structure. This northerly trending structure has a strike length of at least 600m and is open in both directions across the shoreline of and into Lake Randall (Figures 1 to 3). Hole LEFR353 will be extended with a diamond tail in the next phase of drilling.

Holes LRR005 – LRR007 were collared 40 metres south of the 160N section, which contained hole LRR003 with 103m @1.65 g/t gold from 25m. The original collar position of a planned fourth hole on this section was constrained by steep sand dunes occurring at the lake’s edge (Figure 3). This hole has now been redesigned and will be drilled in the coming week. Each hole (LRR005-007) intersected the shallow, supergene, gold-enriched zone that was identified by previous aircore drillholes, LEFA1088-1089, on Lake Randall (Figure 2) (Refer LEX ASX Release 21 February 2022), in addition to intervals of lower grade gold at depth and to the end of hole in LRR005, including:

LRR007:

  • 13m @ 0.93 g/t Au from 38m, including 4m @ 2.29 g/t Au from 28m, and 5m @ 0.32 g/t Au from 174 m

LRR006:

  • 11m @ 0.70 g/t Au from 28m, including 2m @ 2.49 g/t Au from 29m, and 2m @ 0.26 g/t Au from 199m

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ASX Announcement 5 December 2022

The Company now considers that holes LRR005 to LRR007 were drilled east of, and over the core target zone of, higher-grade mineralisation (Figure 3) interpreted to occur at depth. This interpretation is supported by the high-grade gold interval that was intersected to the end-of-hole in LEFR353 and also by LEFR285 (section 120N & Figure 3).

To adequately test this higher-grade target zone, the Company has extended this RC drill-out program by an additional 3 RC holes, with the new holes designed either side of the existing drill sections (120N & 160N), including one steep-dipping hole planned to the east of hole LEFR353 (Figure 3).

Based on anomalous copper values intersected in multiple adjacent drillholes including the discovery hole LEFR260, aircore hole LEFA1089 and others, including RC hole LEFR285 which returned a best copper intercept of 19m at 0.18% Cu from 44m (Refer LEX ASX Release 29 April 2021), the Company anticipates these new gold intersections will be supported by additional elevated copper assays which are pending. Multi-element results, including copper and silver assays, are expected between December 2022 and January 2023 (subject to laboratory turnaround).

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Figure 1 Schematic geological cross-section for the 160 North (160N) drill traverse, highlighting recently drilled holes, LRR001-LRR004 and the multi-phase Burns Central Porphyry.

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ASX Announcement 5 December 2022

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Figure 2 Schematic geological cross-section for the 160 North (160N) drill traverse, highlighting drilled holes, LRR001-LRR004

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Figure 3 Schematic geological cross-section for the 120 North (120N) drill traverse, highlighting holes LRR005-007 which intersected a north-south trending mineralised target zone that is open.

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5 December 2022

ASX Announcement

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Figure 4 Schematic longitudinal section 407400N looking west and showing area of planned and completed RC drillholes (within blue dashed outline)

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5 December 2022

ASX Announcement

Resource RC Drill-out Status

The drill program is ahead of schedule, with nine priority RC holes of the nineteen remaining expected to be completed by mid-December 2022.

Further assay results are expected to be received between December 2022 and January 2023, however, the Company acknowledges the current constraints on laboratories being used, which is affecting the prompt return of assay results.

The Company aims to deliver a maiden gold-copper Mineral Resource Estimate (MRE) for the shallow part of the Burns system in the March 2023 Quarter. Drilling to date, including the aforementioned LEFR353 (Figure 3 & 4) that ended in anomalous gold mineralisation, clearly shows the mineralised envelope will extend at depth in excess of the current limits of drilling.

Planning for the next phase of RC and diamond drilling at Burns Central is underway with final drill hole design dependent on interrogation of the pending copper and multielement results.

Deep Diamond Drill Results Update

Final results for the diamond holes, LEFD006-007a, completed at Burns Central in the September Quarter 2022, remain pending and are expected to be returned in the near term.

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Figure 5 Burns Central RC drill rig in Lake Randall, looking south

This announcement has been authorised for release by the Board

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Wade Johnson Managing Director

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ASX Announcement 5 December 2022

TABLE 1 Burns Resource RC Drill Program Significant Results LRR004-007 and LEFR353

Hole Id Collar E
(MGA94_51)
Collar N
(MGA94_51)
EOH Depth
(m)
Depth From
(m)

Depth To
(m)
Interval
(m)
Au (g/t) Geology
LEFR353 407261 6549890 252 37 49 12.0 0.12 Lower saprolite clay
Also 60 107 47.0 0.10 Basalt and dioriteporphyry. Hematite-biotite-magnetite alteration.
Also 204 252 48.0 1.11 Multiple cross-cuttingdioriteporphyries
Including 204 207 3.0 2.50 Dioriteporphyrywith magnetite-hematite alteration and trace disseminatedpyrite
and 217 221 4.0 7.06 Dioriteporphyrywith biotite-epidote alteration
and 230 234 4.0 2.66 Dioriteporphyrywith hematite dust alteration andpink calcite veining
and 239 240 1.0 1.98 Dioriteporphyrywith hematite-epidote-biotite alteration.
LRR004 407349 6549930 252 27 65 38.0 2.04 Oxide and fresh rock consisting of hematite-magnetite altered diorite that is very fractured.
Including 31 32 1.0 1.39 Lower saprolite clay
and 38 55 17.0 3.90 Oxide and fresh rock consisting of hematite-magnetite altered diorite that is very fractured.
and 60 61 1.0 1.09 Fresh rock consistingof hematite-magnetite altered diorite that is veryfractured.
and 63 64 1.0 2.20 Fresh rock consistingof hematite-magnetite altered diorite that is veryfractured.
Also 70 81 11.0 0.20 Hematite-biotite altered dioriteporphyry. Highlyfractured.
Also 93 193 100.0 0.47 Diorite porphyry, basalt, and a deformation zone. Diorite is hematite-biotite-magnetite-
pyrite altered and fractured.
Including 97 98 1.0 4.81 Dioriteporphyrywith hematite-biotite alteration. Highlyfractured.
and 110 118 8.0 2.02 Diorite porphyry with hematite-magnetite-biotite-pyrite alteration. Pyrite is disseminated.
and 126 128 2.0 1.59 Dioriteporphyrywith hematite alteration and 1% blebby pyrite. Highlyfractured.
and 142 143 1.0 2.16 Dioriteporphyrywith hematite alteration and 1% blebby pyrite. Highlyfractured.
and 167 168 1.0 1.77 Strongly foliated basalt with biotite, orange calcite veining, hematite, epidote, actinolite, and
magnesite alteration.
Also 230 232 2.0 0.14 Strongly foliated basalt with biotite, orange/white calcite veining, and 1% blebby pyrite.
LRR005 407457 6549891 252 32 44 12.0 0.18 Transported clayand lower saprolite clay
Also 244 246 2.0 0.15 Dioriteporphyrywith biotite-epidote-quartz-calcite veiningand 1% blebby pyrite.
LRR006 407414 6549892 252 28 39 11.0 0.70 Oxide - lower saprolite clay
Including 29 31 2.0 2.49 Oxide - lower saprolite clay
Also 98 103 5.0 0.14 Weaklyfoliated basalt with weak calcite veiningand trace blebby pyrite
Also 199 201 2.0 0.26 Biotite-hematite altered diorite porphyry with white/pink calcite veining and fracture
fill/vein chalcopyrite and pyrite
Also 210 216 6.0 0.12 Highly fractured diorite porphyry with hematite-biotite-calcite alteration and up to 10%
disseminatedpyrite
LRR007 407388 6549894 258 25 38 13.0 0.93 Oxide - lower saprolite clayand dioriteporphyry
Including 28 32 4.0 2.29 Oxide - lower saprolite clayand dioriteporphyry
and 36 37 1.0 1.15 Oxide - lower saprolite clayand dioriteporphyry
Also 49 51 2.0 0.26 Highlyfractured dioriteporphyrywith hematite-biotite-epidote alteration
Also 77 81 4.0 0.21 Highlyfractured dioriteporphyrywith hematite-biotite alteration
Also 174 179 5.0 0.32 Highly fractured diorite porphyry with hematite-biotite-magnesite-actinolite alteration and
1% blebby pyrite.

NB: All holes drilled at -60 degrees dip to an azimuth of 090 (East). Gold Intervals calculated with 0.1 g/t Au cut-off. Refer to attached JORC Tables for further details.

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ASX Announcement 5 December 2022

About Lefroy Exploration Limited and the Lefroy Gold Project

Lefroy Exploration Limited is a WA based and focused explorer taking a disciplined methodical and conceptual approach in the search for high value gold deposits in the Yilgarn Block of Western Australia. Key projects include the Lefroy Gold Project to the southeast of Kalgoorlie and the Lake Johnston Project 120km to the west of Norseman.

The 100% owned Lefroy Gold Project contains mainly granted tenure and covers 534km[2] in the heart of the world class gold production area between Kalgoorlie and Norseman. The Project is proximal to Gold Fields’ St Ives gold camp, which contains the Invincible gold mine located in Lake Lefroy and is also immediately south of Silver Lake Resources’ (ASX: SLR) Daisy Milano gold mining operation. The Project is divided into the Western Lefroy package, subject to a Farm-In Agreement with Gold Fields and the Eastern Lefroy package (100% Lefroy owned). The Farm-In Agreement with Gold Fields over the Western Lefroy tenement package commenced on 7 June 2018. Gold Fields can earn up to a 70% interest in the package by spending up to a total of $25million on exploration activities within 6 years of the commencement date .

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Location of the Lefroy Gold Project relative to Kalgoorlie. The Western Lefroy tenement package subject to the Gold Fields joint venture, and Gold Fields tenure is also highlighted

For Further Information please contact:

Wade Johnson Managing Director

Telephone: +61 8 93210984 Email: [email protected]

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ASX Announcement 5 December 2022

Notes Specific-ASX Announcements

The following announcements were lodged with the ASX and further details (including supporting JORC Reporting Tables) for each of the sections noted in this Announcement can be found in the following releases. Note that these announcements are not the only announcements released to the ASX but specific to exploration reporting by the Company of previous exploration at Burns at the Lefroy Gold Project.

  • Outstanding High-Grade Gold and Copper Mineralisation Intersected at Burns: 23 February 2020

  • Exploration Update-Drilling Extends Porphyry at Burns: 26 March 2021

  • Drill Results Extend Copper Gold Zones at Burns: 29 April 2021

  • Multiple Intervals of Altered Porphyry Intersected at Burns: 3 May 2021

  • Burns Drilling Update-first hole on 40N section confirms significant mineralisation: 18 June 2021

  • Exploration Update-RC drilling commences at the Burns Cu Au prospect: 20 July 2021

  • Burns Update-Cu-Au mineralisation confirmed, step out drilling extends: 2 August 2021

  • June 2021 Quarterly Activities Report: 28 July 2021

  • Exploration Update-Advancing the Burns and Coogee South Prospects: 18 August 2021

  • Results from 40N section Further Enhance Burns Cu-Au System: 21 September 2021

  • Multiple magnetic anomalies highlight 3000m trend at Burns: 28 September 2021

  • Drill testing of multiple magnetic targets underway at Burns: 5 October 2021

  • Massive drilling planned for the Western Lefroy JV:13 October 2021

  • Burns Update-Drill Results continue to support larger Cu-Au-Ag system: 3 November 2021

  • Burns Update Drilling underway at Lovejoy anomaly: 22 November 2021

  • Major Drilling Programs Recommenced at Lefroy: 19 January 2022

  • RC Drill Results Outline New Gold Zone at Burns: 25 January 2022

  • High-Grade results expand the Burns Cu Au System: 21 February 2022

  • Impressive Au-Cu intersection in New RC Hole at Burns: 19 April 2022

  • AC Drill Results Continue to Expand Burns Gold-Copper System Beneath Lake Randall: 4 July 2022

  • Exploration Update 1200m Deep Diamond Hole Underway at Burns :12 July 2022

  • Burns Drill Out- Update #1 Multiple Broad Copper/Gold Intersections: 21 November 22

  • Burns Drill Update #2 Outstanding Gold Intersection on Lake Randall: 23 November 22

  • Multiple Broad Cu Au Drill Intersections at Lovejoy Expand Scale of Burns System: 29 November 22

The information in this announcement that relates to exploration targets and exploration results is based on information compiled by Wade Johnson a competent person who is a member of the Australian Institute of Geoscientists (AIG). Wade Johnson is employed by Lefroy Exploration Limited. Wade has sufficient experience that is relevant to the style of mineralisation and type of deposits under consideration and to the activity being undertaken to qualify as a Competent Person as defined in the 2012 edition of the JORC Code. Wade Johnson consents to the inclusion in this announcement of the matters based on his work in the form and context in which it appears

END

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Lefroy Gold Project: Burns Central Resource RC Drilling –5 December 2022 JORC Table 1

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.



The sampling noted in this release has been carried out using
Reverse Circulation (RC) drilling at the Burns copper-gold project.
The RC program in progress comprises approximately 80 angled RC
holes for approximately 20,000m of drilling. Additional gold assay
results have been received for RC holes drilled in Lake Randall and
hole LEFR353 drilled on land. LRR004-006 and LEFR353 were each
drilled to 252m depth. Hole LRR007 was drilled to 258m. Holes were
drilled on a 40m line spacing (traverse) with holes at 40m centres. All
holes were drilled at 600dip toward 0900(East).

Sampling and QAQC protocols as per industry best practice with
further details below.

RC samples were collected from the cyclone at 1m intervals in green
plastic mining bags and laid out in rows of 30m (30 samples) on the
ground. Four metre composite samples were collected from 0m
through the transported overburden (approximately 24m
downhole), to the base of alluvium, by sampling the 1m sample bags
with a flour scoop or PVC spear to produce a bulk 2-3kg sample.
Individual 1m split samples were collected through bedrock (below
base of alluvium) to end of hole (EOH). These 1m split samples were
collected directly off the drill rig cone splitter into calico bags
attached to the cyclone. The sample collected generally weighed 2-
3kg. The samples were sent to the Laboratory in Kalgoorlie for
analysis where the samples were dried, pulverised, and split to
produce a 40g sample for analysis by fire assay with Au
determination by Atomic Absorption Spectrometry. The pulp
samples were sent to the Perth laboratory for additional elements,
derived using a mixed acid digest with ICP finish for Cu, Co, Ag, As, Bi,
Mo, Fe, Pb, S, Sb, Te, W and Zn. Approximately 1 in 10 samples were
analysed for 59 elements using a mixed acid digest and sodium
peroxide fusion with ICP-MS 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).

The Reverse Circulation (RC) was completed by a Schramm T685 RC
rig from Raglan Drilling (Kalgoorlie). Low air face sampling hammer
drilling proved satisfactory to penetrate the regolith and reduce
contamination risk.
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.

The use of professional and competent drilling contractors
minimised the issues with sample recoveries. An honest and open
line of communication between the drill crew and the geologist
allowed for a comprehensive understanding of where any sample
loss may have occurred.

Sample recovery visually inspected and recorded by the rig geologist
and sampler.

Some poor sample return in the overlying transported material (0-
10m) where less than 50% of the sample was able to be returned.

Sample recovery size and sample condition (dry, wet, moist) visually
inspected and recorded by the rig geologist and sampler. Recovery
of samples estimated to be 80-100%, with some variability to 10%
recovery particularly drilling through moist transported clays-
gravels.

Drilling with care (e.g. clearing hole at start of rod, regular cyclone
cleaning) if water encountered to reduce incidence of wet –sticky
sample and cross 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.
• The total length and percentage of the
relevant intersections logged.


Detailed logging of drill chips for regolith, lithology, structure,
veining, alteration, mineralisation and recoveries recorded in each
hole by qualified geologist.

Geological logging is qualitative in nature and relies on the geologist
logging the hole to make assumptions of the character based on
their experience and knowledge.

Logging carried out by sieving 1m sample cuttings, washing in water
and the entire hole collected in plastic chip trays for future
reference.
Criteria JORC Code Explanation Commentary

Chip trays for each hole were photographed using a purpose made
camera stand and a quality digital SLR camera and stored in the
database.

Magnetic
susceptibility
measurements
were
recorded
and
considered to be quantitative in nature.

All drill holes are logged in their entirety (100%).
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.

No core drilling completed

A 4m composite sample was collected from 0m to the base of
transported cover for each hole. Sample weight 2 - 3 kg. The
composite samples were collected by using a scoop or PVC spear to
collect a representative “split” from each bulk sample that made up
a 4m composite interval, this was placed into a pre-numbered calico
bag.

The remainder of each hole was sampled at 1m intervals directly off
a rig-mounted cone splitter into separate pre-numbered calico bags.
Pre-numbered calico bags containing the samples were despatched
to the laboratory for assay.

The sample preparation of the RC samples follows industry best
practice, involving oven drying, pulverising, to produce a
homogenous sub sample for analysis.

Along with submitted samples, standards and blanks were inserted
on a regular basis of 1 in 20 for standards and 1 in 100 for blanks.
Standards were certified reference material prepared by Geostats
Pty Ltd.

Hole LRR004 was drilled as a duplicate sample hole. Two 1m
samples were collected into calico bags off opposing sides of the
cone splitter for each sample interval. These duplicate samples will
be used for QAQC.
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.

RC samples routinely analysed for gold using the 40gram Fire Assay
digest method with an AAS finish at Bureau Veritas’s Kalgoorlie or
Perth Laboratory. Additional elements will be derived using a mixed
acid digest with ICP finish for Cu, Ag, As, Bi, Mo, Fe, Pb, S, Sb, Te, W
and Zn.

Selected samples will be analysed for an additional 59 elements
using a mixed acid digest with ICP-MS finish.

Quality control process and internal laboratory checks demonstrate
acceptable levels of accuracy. At the laboratory regular assay
repeats, lab standards, checks and blanks were analysed.

A hand-held KT-10 was used to measure the magnetic susceptibility
for each metre following the base of transported cover.
Measurements were taken with the instrument pressed to the
sample bag.
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.

Capture of field logging is electronic using Toughbook hardware and
Logchief software. Logged data is then exported as an xml
document to the Company’s external database managers which is
then loaded to the Company’s Datashed database and validation
checks completed to ensure data accuracy. Assay files are received
electronically from the laboratory and field to the Company’s server
and provided to the external database manager.

There has been no adjustment to the assay data. The primary gold
(Au) and copper, plus additional elements reported by the
laboratory are the priority values used for plotting, interrogating
and reporting.

The results have been reviewed by alternative company personnel
and any minor sampling errors identified were field checked and
corrected.

No holes were twinned however selected holes were drilled as
duplicate holes for QAQC purposes.
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.
• Drill hole positions were surveyed using a handheld GPS operated
by the rig geologist/field assistant. In the future post drilling, drill
hole collars will be surveyed using a DGPS by a third-party
contractor.
• Drill azimuth is set up by the supervising geologist.
• Down hole surveys were completed by Raglan drill crew using a
multi-shot gyro which records a survey every 5m downhole.
• Grid System – MGA94 Zone 51. Topographic elevation will be
captured byusingthe differential GPS when surveyed.
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.

Hole spacing is 40x40m and infilling between existing 80m spaced
drilling.

Mineralisation at the Burns prospect is primarily hosted by a
magnetite-biotite altered High Mg basalt which has been intruded
by later diorite porphyry intrusions. The contacts of which are not
uniform however the intrusion appears to be sub-vertical with a
steep southerly plunge. Mineralisation is predominantly Cu plus Au.
There is an association between Cu and Au mineralisation, but they
can occur independently of one another. There is a strong upgrade
of Cu and Au in the supergene environment approximately 50-100m
down-hole and this is typically flat in its orientation. A primary
system (hypogene) occurs in the fresh rock below 100m depth. It is
thought that the mineralisation may dip toward the west-south-
west and plunge toward the south-east, hence the drill orientation
toward the east.

The spacing of the drill holes is considered sufficient for Mineral
Resource estimate procedures.

No compositinghas been applied to assayresults.
Orientation of
data in relation
to geological
structure
• Whether the orientation of sampling
achieves unbiased sampling of possible
structures and the extent to which this is
known, considering the deposit type.
• If the relationship between the drilling
orientation and the orientation of key
mineralised structures is considered to
have introduced a sampling bias, this
should be assessed and reported if
material.

The east-west orientated drill traverses are considered effective to
evaluate the roughly North-West to South-East trending
stratigraphy and sub-vertical mineralised structures.

The drill orientation is an effective test of “true” width of the host
rock due to the fact the host rock unit is striking roughly North-
South and dipping 700to the West.

At this stage the primary controls on the hypogene copper-gold (Cu-
Au) system are not completely understood, however analysis of
previous drilling in conjunction with this drilling have determined the
drill hole orientation is optimal to determine the true width of
mineralisation and improvegeological knowledge of the system.
Sample security • The measures taken to ensure sample
security.

Samples were bagged in labelled and numbered calico bags,
collected and personally delivered to the Bureau Veritas (BV)
Laboratory (Kalgoorlie) by Company field personnel. Samples were
then sorted and checked for inconsistencies against the lodged
Submission sheet by BV staff.

BV reconcile the samples received against the Lefroy Exploration
Limited (LEX) submission sheet to notify of any missing or extra
samples. Following initial gold analysis, the pulp samples are sent to
the BV Perth Laboratory for multi-element analysis. Post analysis,
the samples, pulps and residues are retained by the laboratory in a
secure storageyard.
Audits or
reviews
• The results of any audits or reviews of
sampling techniques and data.

All sampling and analytical results of this drill program were
reviewed by the Senior Exploration Geologist and Managing Director.
Anomalous gold and copper intersections were checked against
library chip trays and logging to correlate with geology. QAQC
reports are auto generated by the database managers and reviewed
bystaff.

Lefroy Gold Project: Burns Central Resource RC Drilling – 5 December 2022 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
licence to operate in the area.

The Lefroy Project is located approximately 50 km
southeast from Kalgoorlie, Western Australia and consists
of a contiguous package of wholly owned tenements held
under title by LEX or its wholly owned subsidiary Monger
Exploration Pty Ltd (MEX). The work described in this report
was completed on Exploration lease E 15/1715.

E 15/1715 is held 100% by Monger Exploration Pty Ltd a
wholly owned subsidiary of Lefroy Exploration Limited

The tenements are current and in good standing with the
Department of Mines, Industry Regulation and Safety
(DMIRS) of Western Australia.
Exploration done by
other parties
• Acknowledgment and appraisal of
exploration by other parties.

1968-1973 BHP: The earliest recognition of the magnetic
anomaly was by BHP. The area fell within TR 3697, which
had been taken up for nickel. The anomaly stood out on the
BMR aeromagnetic contoured plans and BHP was testing
aeromagnetic anomalies that could have an ultramafic
source. The anomaly was confirmed by ground magnetics
but an attempt to drill test with two percussion holes failed
to identify any bedrock and no further work was attempted.

1984 Coopers Resources/Enterprise Gold Mines: The
ground encompassing Burns was taken up as three ELs,
E15/19-21.

1985 BHP: BHP farmed into E15/21 having re-interpreted
the magnetic feature as a potential carbonatite. BHP’s
E15/57 covered the western one third of the anomaly.
Following ground magnetic traverses, BHP drilled two
diamond core holes, LR 1 and 2. LR 1 falls within Goldfields
E15/1638 and LR 2 falls within P15/6397. The results, which
are covered in the next section, did not indicate a
carbonatite and so BHP withdrew their interest in the area.

1985-1989 CRAE: Meanwhile CRAE was conducting
exploration for gold on adjacent tenements and had
engaged Jack Hallberg to carry out geological mapping. He
mapped suites of intermediate dykes (plagioclase-quartz-
hornblende porphyry) intruding basalt in outcrops to the
northwest of Burns.

1992: M. Della Costa took up E15/304 over aeromagnetic
anomalies including Burns. The EL was vended into
Kanowna Consolidated Gold Mines as part of the St Alvano
project.

1996-2001 WMC: WMC joint-ventured into the St Alvano
project, which comprised a total of 12 ELs. They flew 50m
line-spaced aeromagnetics and engaged EHW to interpret.
Burns was not highlighted as such but the magnetic
anomalies forming portions of the annular ring were tested
with air core, leading to the discovery of the Neon prospect.
Subsequent to the EHW study a gravity survey was
conducted which did identify the Burns intrusive as a gravity
low.

2001-2003 Goldfields: Goldfields took over exploration and
conducted further air core drilling at Neon. They identified
S11 as a target to the south of Burns. The target was
secondary gold dispersion in weathered bedrock associated
with magnetite enrichment. A series of north-south air core
traverses were drilled on 640 X 160m. Results were
regarded as disappointing, and the project was dropped.

2005-2008 Gladiator Resources: The area was taken up by
Sovereign following their assessment of previous work.
They identified Homer’s Inlet and the S11 area as priority
targets. In 2007 a JV was established with Newmont/Sipa
covering the gold rights. In 2008 the southern and eastern
sectors of W15/774 was surrendered and taken up as
E15/1030. The northern sector including Burns was
surrendered.
Criteria JORC Code Explanation Commentary

2008 Gold Attire: The ground surrendered by Sovereign
over Burns was taken up as E15/1097.

2008-2010 Newmont: Newmont joint ventured into the
Sovereign and Gold Attire ELs. It conducted an 800 X 400m
gravity survey to trace a north-south “Salt Creek-Lucky Bay”
corridor through the tenements. This was tested by four
lines of aircore on 640 X 160m spacing. Two aircore
traverses on a 1200 X 320m spacing were also conducted
across the interpreted intrusion and the surrounding
magnetic halo. Infill drilling was conducted following up on
the 2.0m @ 5.0 g/t Au intercept in a Goldfields hole, SAL
1089. The hole was re-entered, and a diamond core tail
drilled. This hole falls just inside E15/1638 close to the
boundary with P15/6397.

2010-2019 Octagonal Resources: Three phases of AC to
define a gold in regolith anomaly east of the main intrusive
body. Two phases of RC identified Ag-Cu-Au mineralisation
on four sections spaced approx. 40m apart. The drilling
recognised Cu mineralisation which due to the host rock
association, Octagonal believed there was potential for a
much larger intrusion related system so the emphasis was
switched from orogenic gold style exploration to
predominately copper focussed intrusion related hosted
mineralisation. In 2013 surface geophysical techniques
were applied looking for conductors that might represent
massive sulphides. Ground EM failed to identify any
bedrock conductors, but the magnetic surveys did identify
anomalies. In 2014, a diamond core hole, OBUDD001, was
drilled at -60 degrees to 090 east to 401.5m to test the
source of the magnetic anomalism, which occurred within
the area tested by the RC drilling. It intersected a 3.6m wide
zone of mafic-dominant breccia including 0.9m of massive
magnetite-chalcopyrite which returned 4.5 g/t Au, 2.6% Cu
from 256.4m, within a low-grade zone of 55.95m @ 0.5 g/t
Au and 0.2% Cu from 229.85m It was interpreted to be a
west-dipping structure and the feeder conduit for the
mineralization. A second zone of low-grade mineralization
of 38.5m @ 0.5 g/t Au and 0.2% Cu was intersected from
184.5m. An EIS grant in 2015 and a loan from a third-party
company allowed for two more DD holes to be completed,
however by 2016 the Company was acquired by the third-
party loan company and subsequently delisted from the
ASX.
Geology • Deposit type, geological setting and
style of mineralisation.

The Lefroy Project is located in the southern part of the
Norseman Wiluna Greenstone Belt and straddles the triple
junction of three crustal units, the Parker, Boorara and
Bulong Domain. The Lefroy project tenements are mostly
covered by alluvial, colluvial and lacustrine material with
very little outcrop. Burns is proximal to the Lake margin and
is subsequently under >20-25m of lake sediment and
surface sand dune cover. A stripped profile below this cover
means that there is no significant dispersion or oxide
component to the Burns prospect. Mineralisation is hosted
within a High Mg Basalt and in an intermediate composition
porphyry which intrudes the basalt. Mineralisation is
primarily gold associated with magnetite alteration and
copper
occurring
as
native
copper
and
chalcopyrite/chalcocite in veins, veinlets and fractures
throughout the basalt andporphyry.
Drill hole
Information
• A summary of all information
material to the understanding of the
exploration results including a
tabulation of the following
information for all Material drill
holes:
• easting and northing of the drill
hole collar

Tables containing drill hole collar, survey and intersection
data for material drill holes (gold intersections >0.1g/t Au or
copper intersections >0.1% Cu with up to a maximum of
10m internal dilution) are included in Table 1 in the body of
the announcement.

No Information has been excluded.
Criteria JORC Code Explanation Commentary
• 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.
Data aggregation
methods
• In reporting Exploration Results,
weighting averaging techniques,
maximum and/or minimum grade
truncations (eg cutting of high grades)
and cut-off grades are usually Material
and should be stated.
• Where aggregate intercepts incorporate
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.

All grades have been length weighted and reported as
down-hole metres. High grades have not been cut. A lower
cut off of 0.1g/t Au has been used to identify significant
results (intersections) with a maximum of 10m of
consecutive internal dilution below cut-off.

Where present, higher-grade values are included in the
intercepts table and assay values equal to or > 1.0 g/t Au
have been stated on a separate line below the intercept
assigned with the text ‘includes’.

Reported results have been calculated using 1m samples
and is noted in the body of the report.

No metal equivalent values or formulas are used.
Relationship between
mineralisation
widths and intercept
lengths

• These relationships are particularly
important in the reporting of Exploration
Results.
• If the geometry of the mineralisation with
respect to the drill hole angle is known,
its nature should be reported.
• If it is not known and only the down hole
lengths are reported, there should be a
clear statement to this effect (eg ‘down
hole length, true width not known’).



All material results are based on down-hole metres.

Previous drill coverage and structural measurements from
oriented core has provided guidance for the presence of
steeply dipping geology comprising a package of rocks
containing basalt intruded by diorite porphyry. This data and
modelling of prior ground magnetic data provides support for
orientation of the drilling.

Results from this drill program do not represent ‘true widths’
however holes are designed to intercept the host sequence
perpendicular to its strike.
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.

Appropriate summary diagrams (plan) and cross sections are
included in this announcement. (Figure 1,2, & 3)
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.

Significant assay results are provided in Table 1 for the
recent LEX RC drill program.

Drill holes with no significant results (<2m and <0.1g/t Au)
are not reported.

Reference to significant assay results from historical or
previous drillingbyLEX are noted in the bodyof the report.
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.

All relevant data has been included within this report.
Criteria JORC Code Explanation Commentary
Further work • The nature and scale of planned further
work (eg tests for lateral extensions or
depth extensions or large-scale step-out
drilling).
• Diagrams clearly highlighting the areas
of possible extensions, including the main
geological interpretations and future
drilling areas, provided this information
is not commercially sensitive.

The exploration program is currently underway and noted
in the body of the report. Further work at Burns Central will
be directed by the results from this RC program and the
outcome of the Mineral Resource Estimate.