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ST GEORGE MINING LIMITED Investor Presentation 2021

Aug 15, 2021

65782_rns_2021-08-15_1c607237-7878-45c3-a4da-ba2a57214c6b.pdf

Investor Presentation

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16 August 2021

DRILLING UNDERWAY AT MT ALEXANDER NICKEL-COPPER SULPHIDE PROJECT

MULTIPLE NICKEL-COPPER SULPHIDE TARGETS TO BE TESTED:

  • Reverse circulation (RC) drilling has resumed at the high-grade Mt Alexander Project
  • Several nickel-copper sulphide targets located on tenements owned 100% by St George will be tested including:
    • The Carnac Prospect on E29/1041, where a linear magnetic trend with coincident Ni-Cu soil anomalism may represent a mineralised intrusive unit similar to the Cathedrals Belt
    • A strong magnetic anomaly identified in the latest aeromagnetic survey on E29/972, which has the potential for a late-stage intrusive unit
    • Historical Ni-Cu soil anomaly on E29/962 that is coincident with ultramafic rocks already confirmed by previous drilling

RESOURCE DEFINITION DRILLING TO COMMENCE AT THE CATHEDRALS PROSPECT:

  • Infill drilling for the shallow, high-grade nickelcopper sulphide deposit at the Cathedrals Prospect
  • Drilling will test continuity of known high-grade mineralisation ahead of potential resource estimation

On right: Photo of drill core from MAD056 at the Cathedrals Prospect showing massive sulphides with high-grade Ni-Cu-Co-PGEs.

Assays for MAD056 confirmed a thick high-grade intersection:

7.16m @ 3.58% Ni, 1.50% Cu, 0.12% Co and 2.93g/t total PGEs from 57.8m,

including

3.15m @ 6.24% Ni, 2.84% Cu, 0.20% Co and 4.35g/t total PGEs from 61.8m

Growth-focused Western Australian nickel company St George Mining Limited (ASX: SGQ) ("St George" or "the Company") is pleased to announce that drilling of nickel-copper sulphide targets is underway at its flagship high-grade Mt Alexander Project, located in the north-eastern Goldfields.

John Prineas, St George Mining's Executive Chairman, said:

"We have resumed drilling at Mt Alexander with an exciting pipeline of nickel-copper sulphide targets.

"These early-stage targets have been generated by our ongoing exploration of the 100% St George owned tenements at Mt Alexander. These targets offer an excellent opportunity to expand the footprint of mineralisation at Mt Alexander with a new discovery.

"Infill drilling will also be undertaken at the Cathedrals Prospect, where high-grade nickel-copper sulphides have been intersected at shallow depths across a strike length of more than 200m.

"The high-grade mineralisation at Cathedrals – typified by intercepts of massive nickel-copper sulphides like MAD056 – highlights how special Mt Alexander is. The combination of high-grade nickel, copper, cobalt and platinum group metals is simply not seen anywhere else in Australia.

"With nickel prices powering ahead on rising battery metal demand, Mt Alexander is well positioned to attract attention from investors looking for proven high-grade nickel sulphide discoveries."

DRILLING AT CARNAC PROSPECT – LINEAR MAGNETIC TREND

The first holes to be drilled in the current programme will be at the newly defined Carnac Prospect, on St George's 100% owned E29/1041.

Initially, seven drill holes are planned for Carnac with an average downhole depth of 100m to confirm the presence of mafic-ultramafic intrusive-style rocks and/or nickel and copper anomalism; see Figure 1.

Figure 1 – map (1VD magnetic data) showing the planned drilling at E29/1041.

This is the first ever drilling at Carnac, which encompasses a linear magnetic trend that extends eastnortheast across the tenement for more than 8km. Anomalous values for nickel, copper and chromium were returned by a soil survey partly completed over this trend.

The distribution of the anomalous soil values correlates to the shape of the strong linear magnetic trend and supports the interpretation that the magnetic trend may represent a mafic intrusive unit – similar to the eastnortheast oriented Cathedrals Belt – with potential to host nickel-copper sulphide mineralisation.

For further details of the exploration work completed at E29/1041, see our ASX Release dated 2 August 2021 Soil Assays Confirm New Ni-Cu Target at Mt Alexander.

DRILLING AT E29/972 – BULLS-EYE MAGNETIC ANOMALY

The airborne magnetic survey completed earlier this year over E29/972 identified a very strong magnetic anomaly. The magnetic high has a strike length of approximately 600m and a width of 250m; see Figure 2.

The shape and location of the magnetic feature is unusual for the area and notably different to the largely granitic rocks in the vicinity of the anomaly. Magnetic features such as this may represent a late-stage intrusion that could be prospective for base metals or gold.

Initially, two drill holes with an average downhole depth of 150m will be completed at this target.

The holes will aim to identify the source of the strong magnetic signature.

If intrusive lithology is present, drill results will also assist to determine its prospectivity to host any mineralisation.

Figure 2 – magnetic data image (1VD) over the northern areas of the Mt Alexander Project. The potential intrusion on E29/972 is highlighted.

DRILLING AT E29/962 – NICKEL SOIL ANOMALY OVER ULTRAMAFIC BELT

E29/962 hosts the southern extent of a north-south oriented ultramafic belt (the "Eastern Belt") that lies parallel and to the east of the main Mt Alexander ultramafic belt; see Figure 3.

The main Mt Alexander Belt is an Archaean greenstone belt. This belt is known to host komatiitic ultramafics and associated nickel sulphides, rather than the mafic-ultramafic intrusive-style nickel sulphides found within the Cathedrals Belt. The Eastern Belt is interpreted to be part of this prospective Archaean sequence.

Historical exploration by WMC Resources at the Eastern Belt included a soil survey that returned anomalous values indicative of nickel sulphide mineralisation.

The large and coherent geochemical anomaly, with a strike of more than 200m and 120m traverse, returned figures of up to 2,010ppm Ni, 100ppm Cu and 245ppm Co.

Follow-up drilling was only shallow and interpreted to have been limited in its effectiveness in testing the area.

Initially, five drill holes with an average downhole depth of 150m will be completed by St George at the Eastern Belt – at a new prospect named Jailbreak.

The holes will test the basal contact of the upper and lower ultramafic units, and will be cased in PVC to allow downhole EM surveys to be completed.

Figure 3 – Historical shallow drilling and geochemical sample locations overlaying magnetic data image (RTP 1VD) for E29/962 and the southern end of E29/638.

CATHEDRALS PROSPECT – INFILL DRILLING

Drilling by St George has confirmed that high-grade nickel-copper sulphide mineralisation at the Cathedrals Prospect commences from 30m below surface and has formed in two deposits.

The upper deposit is largely between 30m to 80m below surface and hosted within the intrusive Cathedrals mafic-ultramafic.

The lower deposit has formed in the footwall fault and is between 120m to 200m below surface. In both cases, mineralisation extends for a strike length of more than 200m.

Figure 4 shows the two mineralised zones at Cathedrals with numerous high-grade intersections highlighted.

Figure 4 - a long section of the Cathedrals Prospect (looking north) showing significant intersections and the mineralised zones in the Cathedrals ultramafic and the footwall fault.

Initially, 20 high-priority holes will be completed with an average depth of 80m to confirm the continuity of the mineralisation in the upper deposit.

These holes are also designed to test the potential extension of known mineralisation into areas where there has been no drilling. A number of EM conductors that remain untested are located in these areas and support the potential for the upcoming drilling to identify further high-grade mineralisation.

Additional infill drilling will be designed once results from the high-priority holes are reviewed. The existing Programme of Works for Cathedrals includes approval for up to 82 infill holes.

Figure 5 – a plan view of the Cathedrals Prospect showing the historical drilling, massive sulphide zones and untested DHEM plates overlaying aerial photography. Upcoming drilling will test for continuity between these confirmed high-grade nickel-copper sulphides.

COVID-19:

St George continues to manage its operations in compliance with COVID-19 regulations issued by State and Commonwealth authorities. We will continue to proactively manage drilling and other field programmes to protect the health and safety of our team and service providers.

Border restrictions in Western Australia and elsewhere have impacted on the movement of personnel for drill rig crews which is constraining the availability of drill rigs. St George is in close contact with its drilling contractors to best manage access and continuity to drilling services.

About the Mt Alexander Project:

The Mt Alexander Project is located 120km south-southwest of the Agnew-Wiluna Belt, which hosts numerous world-class nickel deposits. The Project comprises six granted exploration licences – E29/638, E29/548, E29/962, E29/954, E29/972 and E29/1041 – which are a contiguous package. A seventh granted exploration licence – E29/1093 – is located to the south-east of the core tenement package.

The Cathedrals, Stricklands, Investigators and Radar nickel-copper-cobalt-PGE discoveries are located on E29/638, which is held in joint venture by St George (75%) and Western Areas Limited (25%). St George is the Manager of the Project, with Western Areas retaining a 25% non-contributing interest in the Project (in regard to E29/638 only) until there is a decision to mine. All other Project tenements are owned 100% by St George.

Authorised for release by the Board of St George Mining Limited.

For further information, please contact: John Prineas Executive Chairman St George Mining Limited +61 411 421 253 [email protected]

Peter Klinger Media and Investor Relations Cannings Purple +61 411 251 540 [email protected]

Competent Person Statement:

The information in this report that relates to Exploration Targets, Exploration Results, Mineral Resources or Ore Reserves is based on information compiled by Mr Dave O'Neill, a Competent Person who is a Member of The Australasian Institute of Mining and Metallurgy. Mr O'Neill is employed by St George Mining Limited to provide technical advice on mineral projects, and he holds performance rights issued by the Company.

Mr O'Neill has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity being undertaken to qualify as a Competent Person as defined in the 2012 Edition of the 'Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves'. Mr O'Neill consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.

The following section is provided for compliance with requirements for the reporting of exploration results under the JORC Code, 2012 Edition.

Section 1 Sampling Techniques and Data

(Criteria in this section apply to all succeeding sections)

Criteria JORC Code explanation Commentary
Samplingtechniques Nature and quality ofsampling (eg cut channels,random chips, or specific specialised industrystandard measurement tools appropriate to theminerals under investigation, such as down holegamma sondes, or handheld XRF instruments,etc). These examples should not be taken aslimiting the broad meaning of sampling. Drilling programmes are completed by Reverse Circulation (RC) andDiamond Core drilling. Downhole Electro‐Magnetics (DHEM) surveysare completed by Vortex Geophysics.
Diamond Core Sampling: The sections of the core that are selectedfor assaying are marked up and then recorded on a sample sheet forcutting and sampling at the certified assay laboratory. Samples of HQor NQ2 core are cut just to the right of the orientation line whereavailable using a diamond core saw, with half core sampledlengthways for assay.
RC Sampling: Allsamplesfrom the RC drilling are taken as 1m samplesfor laboratory assay.
DHEM Surveying: The surveys were conducted using the DigiAtlantissystem and VTX‐100 transmitter. The readings were recorded at 5mintervals with 1m infill down hole.
The surveys used 400 x 400m loops orientated to magnetic north.
Appropriate QAQC samples (standards, blanks and duplicates) areinserted into the sequences as per industry best practice. Samples arecollected using cone or riffle splitter. Geological logging of RC chips iscompleted at site with representative chips being stored in drill chiptrays.
Include reference to measures taken to ensuresamplerepresentivityandtheappropriatecalibrationofanymeasurementtoolsorsystems used. RC Sampling: Samples are taken on a one metre basis and collectedusing uniquely numbered calico bags. The remaining material for thatmetre is collected and stored in a green plastic bag marked with thatspecific metre interval. The cyclone is cleaned with compressed airafter each plastic and calico sample bag is removed. If wet sample orclays are encountered then the cyclone is opened and cleanedmanually and with the aid of a compressed air gun. A blank sample isinserted at the beginning of each hole, and a duplicate sample istaken every 50th sample. A certified sample standard is also addedaccording to geology, but at no more than 1:50 samples.
Geological logging of RC chipsis completed atsite with representativechips being stored in drill chip trays. Downhole surveys of dip andazimuth are conducted using a single shot camera every 30m, andusing a downhole Gyro when required, to detect deviations of thehole from the planned dip and azimuth. The drill‐hole collar locationsare recorded using a hand‐held GPS, which has an accuracy of +/‐ 5m.All drill‐hole collars will be surveyed to a greater degree of accuracyusing a certified surveyor at a later date.
Diamond Core Sampling: For diamond core samples, certified sample25thstandardswereaddedaseverysample.Corerecoverycalculations are made through a reconciliation of the actual core andthe driller's records. Downhole surveys of dip and azimuth wereconducted using a single shot camera every 30m to detect deviationsof the hole from the planned dip and azimuth. The drill‐hole collarlocations are recorded using a hand‐held GPS, which has an accuracyof +/‐ 5m.
Criteria JORC Code explanation Commentary
Aspects of the determination of mineralisationthat are Material to the Public Report.In cases where 'industry standard' work hasbeen done this would be relatively simple (eg'reverse circulation drilling was used to obtain 1m samples from which 3 kg was pulverised toproduce a 30 g charge for fire assay'). In othercases more explanation may be required, suchas where there is coarse gold that has inherentsampling problems. Unusual commodities ormineralisation types (eg submarine nodules)may warrant disclosure of detailed information. RC Sampling: A 1m composite sample is taken from the bulk sampleof RC chips that may weigh in excess of 40 kg. Each sample collectedfor assay typically weighs 2‐3kg, and once dried, is prepared for thelaboratory as per the Diamond samples below.Diamond Core Sampling: Diamond core (both HQ and NQ2) is half‐core sampled to geological boundaries no more than 1.5m and no lessthan 10cm. Samples less than 3kg are crushed to 10mm, dried andthen pulverised to 75µm. Samples greater than 3kg are first crushedto 10mm then finely crushed to 3mm and input into the rotarysplitters to produce a consistent output weight for pulverisation.Pulverisation produces a 40g charge for fire assay. Elementsdetermined from fire assay are gold (Au), platinum (Pt) and palladium(Pd)witha1ppbdetectionlimit.TodetermineotherPGEconcentrations (Rh, Ru, Os, Ir) a 25g charge for nickel sulphide collectfire assay is used with a 1ppb detection limit.Other elements will be analysed using an acid digest and an ICP finish.These elements are: Ag, Al, As, Bi, Ca, Cd, Co, Cr, Fe, K, Li, Mg, Mn,
Mo, Nb, Ni, P, Pb, S, Sb, Sn, Te, Ti, V, W, Zn. The sample is digestedwith nitric, hydrochloric, hydrofluoric and perchloric acids to effect asnear to total solubility of the sample as possible. The sample is thenanalysed using ICP‐AES or ICP‐MS.
LOI (Loss on Ignition) will be completed on selected samples todetermine the percentage of volatiles released during heating ofsamples to 1000°C.
Drillingtechniques Drill type (eg core,reverse circulation, open‐holehammer, rotary air blast, auger, Bangka, sonic,etc) and details (eg core diametre, triple orstandard tube, depth of diamond tails, face‐sampling bit or other type, whether core isoriented and if so, by what method, etc). Diamond Core Sampling: The collars of the diamond holes weredrilled using RC drilling down through the regolith to the point ofrefusal or to a level considered geologically significant to change tocore. The hole was then continued using HQ diamond core until thedrillers determined that a change to NQ2 coring was required.
The core is oriented and marked by the drillers. The core is orientedusing ACT Mk II electric core orientation.
RC Sampling: The RC drilling uses a 140 mm diameter face hammertool. High capacity air compressors on the drill rig are used to ensurea continuously sealed and high‐pressure system during drilling tomaximise the recovery of the drill cuttings, and to ensure chipsremain dry to the maximum extent possible.
Drill samplerecovery Method of recording and assessing core andchip sample recoveries and results assessed. Diamond Core Sampling: Diamond core recoveries are recordedduring drilling and reconciled during the core processing andgeological logging. The core length recovered is measured for eachrun and recorded which is used to calculate core recovery as apercentage.
RC Sampling: RC samples are visually checked for recovery, moistureand contamination. Geological logging is completed at site withrepresentative RC chips stored in chip trays.
Measures taken to maximise sample recoveryand ensure representative nature of thesamples. RC Sampling: Samples are collected using cone or riffle splitter.Geological logging of RC chipsis completed atsite with representativechips being stored in drill chip trays.
Diamond Core Sampling: Measures taken to maximise core recoveryinclude using appropriate core diameter and shorter barrel lengththrough the weathered zone, which at Cathedrals and Investigators ismostly <20m and Stricklands <40m depth. Primary locations for coreloss in fresh rock are on geological contacts and structural zones, anddrill techniques are adjusted accordingly, and if possible, these zonesare predicted from the geological modelling.
Criteria JORC Code explanation Commentary
Whether a relationship exists between samplerecovery and grade and whether sample biasmay have occurred due to preferential loss/gainof fine/coarse material. To date, no sample recovery issues have yet been identified thatwould impact on potential sample bias in the competent fresh rocksthat host the mineralised sulphide intervals.
Logging Whether core and chip samples have beengeologically and geotechnically logged to a levelofdetailtosupportappropriateMineralResourceestimation,miningstudiesandmetallurgical studies. Geological logging is carried out on all drill holes with lithology,alteration, mineralisation, structure and veining recorded.
Whether logging is qualitative or quantitative innature.Core(orcostean,channel,etc)photography. Loggingofdiamondcoreand RCsamplesrecordslithology,mineralogy, mineralisation,structures(core only), weathering, colourand other noticeable features. Core was photographed in both dryand wet form.
The total length and percentage of the relevantintersections logged. All drill holes are geologically logged in full and detailed litho‐geochemical information is collected by the field XRF unit. The datarelating to the elements analysed is used to determine furtherinformation regarding the detailed rock composition.
Sub‐samplingtechniques andsamplepreparation If core, whether cut or sawn and whetherquarter, half or all core taken. Diamond Core Sampling: Diamond core was drilled with HQ and NQ2size and sampled as complete half core to produce a bulk sample foranalysis. Intervals selected varied from 0.3 – 1m (maximum) The HQand NQ2 core is cut in half length ways just to the right of theorientation line where available using a diamond core saw. Allsamples are collected from the same side of the core wherepracticable.
Assay preparation procedures ensure the entire sample is pulverisedto 75 microns before the sub‐sample is taken. This removes thepotential for the significant sub‐sampling bias that can be introducedat this stage.
If non‐core, whether riffled, tube sampled,rotary split, etc and whether sampled wet ordry. RC samples are collected in dry form. Samples are collected usingcone or riffle splitter when available. Geological logging of RC chips iscompleted at site with representative chips being stored in drill chiptrays.
For all sample types, the nature, quality andappropriateness of the sample preparationtechnique. RC Sampling: Sample preparation for RC chips follows a standardprotocol.
The entire sample is pulverised to 75µm using LM5 pulverising mills.Samples are dried, crushed and pulverized to produce a homogenousrepresentative sub‐sample for analysis. A grind quality target of 90%passing 75µm is used.
Quality control procedures adopted for all sub‐sampling stages to maximise representivity ofsamples. Quality control procedures include submission of Certified ReferenceMaterials (standards), duplicates and blanks with each sample batch.QAQC results are routinely reviewed to identify and resolve anyissues.
RC Sampling: Field QC procedures maximise representivity of RCsamples and involve the use of certified reference material as assaystandards, along with blanks, duplicates and barren washes.
Diamond Core Sampling: Drill core is cut in half lengthways and thetotal half‐core submitted as the sample. This meets industrystandards where 50% of the total sample taken from the diamondcore is submitted.
Criteria JORC Code explanation Commentary
Measures taken to ensure that the sampling isrepresentative of the in situ material collected,including for instance results for fieldduplicate/second‐half sampling. Duplicate samples are selected during sampling. Samples comprisetwo quarter core samples for Diamond Core. Duplicate RC samplesare captured using two separate sampling apertures on the splitter.
Whether sample sizes are appropriate to thegrain size of the material being sampled. The sample sizes are considered to be appropriate to correctlyrepresent base metal sulphide mineralisation and associated geologybased on: the style of mineralisation (massive and disseminatedsulphides), the thickness and consistency of the intersections and thesampling methodology.
Quality ofassay data andlaboratorytests The nature, quality and appropriateness of theassaying and laboratory procedures used andwhether the technique is considered partial ortotal. For RC sampling, a 30 gram sample will be fire assayed for gold,platinum and palladium. The detection range for gold is 1 – 2000ppbAu, and 0.5 – 2000 ppb for platinum and palladium. This isbelieved to be an appropriate detection level for the levels of theseelements within this specific mineral environment. However, shouldAu, Pt or Pd levels reported exceed these levels; an alternative assaymethod will be selected.
All other metals will be analysed using an acid digest and an ICP finish.The sample is digested with nitric, hydrochloric, hydrofluoric andperchloric acids to effect as near to total solubility of the sample aspossible. The solution containing samples of interest, including thosethat need further review, will then be presented to an ICP‐OES for thefurther quantification of the selected elements.
Diamond core samples are analysed for Au, Pt and Pd using a 40g leadcollection fire assay; for Rh, Ru, Os, Ir using a 25g nickel sulphidecollection fire assay; and for Ag, Al, As, Bi, Ca, Cd, Co, Cr, Fe, K, Li, Mg,Mn, Mo, Nb, Ni, P, Pb, S, Sb, Sn, Te, Ti, V, W, Zn using a four acid digestand ICP‐AES or MS finish. The assay method and detection limits areappropriate for analysis of the elements required.
For geophysical tools, spectrometres, handheldXRF instruments, etc, the parametres used indetermining the analysis including instrumentmake and model, reading times, calibrations DHEM: The surveys were conducted using the DigiAtlantissystem andVTX‐100 transmitter. The readings were recorded at 5m intervalswith 1m infill down hole. The transmitter produced 96amps andrecorded at a frequency of 0.5Hz.
factors applied and their derivation, etc. XRF: A handheld XRF instrument (Olympus Innov‐X SpectrumAnalyser) is used to systematically analyse the drill core and RCsample piles onsite. One reading is taken per metre, however for anycore samples with matrix or massive sulphide mineralisation thenmultiple samples are taken at set intervalsper metre.Theinstruments are serviced and calibrated at least once a year. Fieldcalibration of the XRF instrument using standards is periodicallyperformed (usually daily).
The handheld XRF results are only used for preliminary assessmentand reporting of element compositions, prior to the receipt of assayresults from the certified laboratory.
Nature of quality control procedures adopted(egstandards,blanks,duplicates,externallaboratory checks) and whether acceptablelevels of accuracy (ie lack of bias) and precision Laboratory QAQC involves the use of internal lab standards usingcertified reference material (CRMs), blanks and pulp duplicates aspart of in‐house procedures. The Company also submits a suite ofCRMs, blanks and selects appropriate samples for duplicates.
have been established. Sample preparation checks for fineness are performed by thelaboratory to ensure the grind size of 90% passing 75µm is beingattained.
Verification ofsampling andassaying The verification of significant intersections byeither independent or alternative companypersonnel. Significant intersections are verified by the Company's technicalstaff.
The use of twinned holes. No twinned holes have been planned for the current drillprogramme.
Criteria JORC Code explanation Commentary
Documentation of primary data, data entryprocedures, data verification, data storage(physical and electronic) protocols. Primary data is captured onto a laptop using acQuire software andincludes geological logging,sample data and QA/QC information. Thisdata, together with the assay data, is entered into the St GeorgeMiningcentralSQLdatabasewhichismanagedbyexternalconsultants.
Discuss any adjustment to assay data. No adjustments or calibrations will be made to any primary assay datacollected for the purpose of reporting assay grades and mineralisedintervals. For the geological analysis, standards and recognisedfactors may be used to calculate the oxide form assayed elements, orto calculate volatile free mineral levels in rocks.
Location ofdata points Accuracy and quality of surveys used to locatedrillholes(collaranddown‐holesurveys),trenches, mine workings and other locations Drill holes and MT/AMT stations have been located and pegged usinga DGPS system with an expected accuracy of +/‐5m for easting,northing and elevation.
used in Mineral Resource estimation. Downhole surveys are conducted using a single shot cameraapproximately every 30m or downhole Gyro during drilling to recordand monitor deviations of the hole from the planned dip and azimuth.Post‐drilling downhole gyroscopic surveys will be conducted, whichprovide more accurate survey results.
Specification of the grid system used. The grid system used is GDA94, MGA Zone 51.
Quality and adequacy of topographic control. Elevation data has been acquired using DGPS surveying at individualcollar locations and entered into the central database. Atopographic surface has been created using this elevation data.
Data spacinganddistribution Data spacing for reporting of ExplorationResults. The spacing and distribution of holes is not relevant to the drillingprograms which are at the exploration stage rather than definitiondrilling.
Whether the data spacing and distribution issufficient to establish the degree of geologicalandgradecontinuityappropriatefortheMineral Resource and Ore Reserve estimationprocedure(s) and classifications applied. The completed drilling at the Project is not sufficient to establish thedegree of geological and grade continuity to support the definition ofMineral Resource and Reserves and the classifications applied underthe 2012 JORC code.
Whether sample compositing has been applied. No compositing has been applied to the exploration results.
Orientation ofdata in relationto geologicalstructure Whether the orientation of sampling achievesunbiased sampling of possible structures andthe extent to which this is known, consideringthe deposit type. The drill holes are drilled to intersect the modelled mineralised zonesat a near perpendicular orientation (unless otherwise stated).However, the orientation of key structures may be locally variableand any relationship to mineralisation has yet to be identified.
If the relationship between the drillingorientation and the orientation of keymineralised structures is considered to haveintroduced a sampling bias, this should beassessed and reported if material. No orientation based sampling bias has been identified in the datato date.
Samplesecurity The measures taken to ensure sample security. Chain of Custody is managed by the Company until samples pass to aduly certified assay laboratory for subsampling and assaying. The RCsample bags are stored on secure sites and delivered to the assaylaboratory by the Company or a competent agent. When in transit,they are kept in locked premises. Transport logs have been set up totrack the progress of samples.
Audits orreviews The results of any audits or reviews of samplingtechniques and data. Sampling techniques and procedures are regularly reviewedinternally, as is data. To date, no external audits have beencompleted on the drilling programme.

Section 2 Reporting of Exploration Results (Criteria listed in section 1 will also apply to this section where relevant)

Criteria JORC Code explanation Commentary
MineralTenement andLand Status Type, name/reference number, location andownership including agreements or materialissues with third partiesincluding joint ventures,partnerships, overriding royalties, native titleinterests, historical sites, wilderness or nationalpark and environmental settings.The security of the tenure held at the time of The Mt Alexander Project is comprised of six granted ExplorationLicences(E29/638,E29/548,E29/954,E29/962,E29/972andE29/1041). Tenement E29/638 is held in Joint Venture between StGeorge (75% interest) and Western Areas (25% interest). E29/638and E29/548 are also subject to a royalty in favour of a third partythat is outlined in the ASX Release dated 17 December 2015 (asregards E29/638) and the ASX release dated 18 September 2015 (asregards E29/548).No environmentally sensitive sites have been identified on the
reporting along with any known impedimentstoobtaining a licence to operate in the area. tenements. A registered Heritage site known as Willsmore 1 (DAAidentification 3087) straddles tenements E29/548 and E29/638. Allfive tenements are in good standing with no known impediments.
ExplorationDone by OtherParties Acknowledgment and appraisal of explorationby other parties. Exploration on tenements E29/638 and E29/962 has been largely forkomatiite‐hosted nickel sulphides in the Mt Alexander GreenstoneBelt. Exploration in the northern section of E29/638 (Cathedrals Belt)and also limited exploration on E29/548 has been for komatiite‐hosted Ni‐Cu sulphides in granite terrane. No historic exploration hasbeen identified on E29/954 or E29/972.
Mafic‐Ultramafic intrusion related high grade nickel‐copper‐PGEsulphides were discovered at the Mt Alexander Project in 2008.Drilling was completed to test co‐incident electromagnetic (EM) andmagnetic anomalies associated with nickel‐PGE enriched gossans inthe northern section of current tenement E29/638. The drillingidentified high grade nickel‐copper mineralisation in granite‐hostedand East‐West orientated ultramafic units and the discovery wasnamed the Cathedrals Prospect.
Geology Deposit type, geological setting and style ofmineralisation The Mt Alexander Project is at the northern end of a westernbifurcation of the Mt Ida Greenstones. The greenstones are bound tothe west by the interpreted Ida Fault, a significant Craton‐scalestructure that marks the boundary between the Kalgoorlie Terrane(and Eastern Goldfields Superterrane) to the east and the YouanmiTerrane to the west.
The Mt Alexander Project is prospective for further high‐grade nickel‐mineralisation (both komatiite and mafic‐ultramafic intrusive hosted)and also precious metal mineralisation (i.e. orogenic gold) that istypified elsewhere in the Yilgarn Craton.
Drill holeinformation A summary of all information material to theunderstandingoftheexplorationresultsincludingtabulationofthefollowinginformation for all Material drill holes:• Easting and northing of the drill hole collar•Elevation or RL (Reduced Level – elevationabove sea level in metres) of the drill hole collar• Dip and azimuth of the hole• Down hole length and interception depth• Hole length Drill hole collar locations are shown in the maps and tables includedin the body of the relevant ASX releases.
Dataaggregationmethods InreportingExplorationResults,weightingaveragingtechniques,maximumand/orminimum grade truncations (e.g. cutting of highgrades) and cut‐off grades are usually Materialand should be stated. Reported assay intersections are length and density weighted.Significant intersections are determined using both qualitative (i.e.geological logging) and quantitative (i.e. lower cut‐off) methods.
For massive sulphide intersections, the nominal lower cut‐off is 2%for either nickel or copper. For disseminated, blebby and matrixsulphide intersections the nominal lower cut‐off for nickel is 0.3%.
Criteria JORC Code explanation Commentary
Where aggregated intercepts incorporate shortlengths of high grade results and longer lengthsof low grade results, the procedure used forsuchaggregation should be stated and some typicalexamples ofsuch aggregationsshould be shownin detail. Any high‐grade sulphide intervals internal to broader zones ofsulphide mineralisation are reported as included intervals.
Any disseminated, matrix, brecciated or stringer sulphides with(usually) >1% nickel or copper on contact with massive sulphidemineralisation are grouped with the massive sulphides forcalculating significant intersections and the massive sulphidemineralisation is reported as an including intersection.
The assumptions used for any reporting ofmetal equivalent values should be clearlystated. No metal equivalent values are used for reporting explorationresults.
Relationshipbetweenmineralisationwidths andinterceptlengths These relationships are particularly important inthe reporting of exploration results. If thegeometry of the mineralisation with respect tothe drill hole angle is known, its nature shouldbe reported. If it is not known and only the downhole lengths are reported, there should be aclear statement to this effect. Assay intersections are reported as down hole lengths. Drill holes areplanned as perpendicular as possible to intersect the target EM platesand geological targets so downhole lengths are usually interpreted tobe near true width.
iagrams Appropriate maps and sections(with scales) andtabulations of intercepts should be included forany significant discovery being reported. Theseshould include, but not be limited to a planeviewofdrillholecollarlocationsandappropriate sectional views. A prospect location map, cross section and long section are shownin the body of relevant ASX Releases.
Balanced Wherecomprehensivereportingofall Reports on recent exploration can be found in ASX Releases that are
Reporting ExplorationResultsisnotpractical,representative reporting of both low and highgrades and/or widths should be practiced toavoidmisleadingreportingofExplorationResults. available on our website at www.stgm.com.au:Theexplorationresultsreportedarerepresentativeofthemineralisation style with grades and/or widths reported in aconsistent manner.
Othersubstantiveexplorationdata Other exploration data, if meaningful andmaterial, should be reported including (but notlimited to): geological observation; geophysicalsurvey results; geochemical survey results; bulksamples – size and method of treatment;metallurgicaltestresults;bulkdensity,groundwater,geotechnicalandrockcharacteristics;potentialdeleteriousorcontaminating substances. All material or meaningful data collected has been reported.
Further Work The nature and scale of planned further work(e.g. tests for lateral extensions or depthextensionsorlarge–scalestep–outdrilling).Diagrams clearly highlighting the areasofpossibleextensions,includingthemaingeological interpretations and future drillingareas,providedthisinformationisnotcommercially sensitive. A discussion of further exploration work underway is contained in thebody of recent ASX Releases.
Further exploration will be planned based on ongoing drill results,geophysical surveys and geological assessment of prospectivity.