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Address  ABN Level 11, BGC Centre 28 The Esplanade, Perth WA 6000    96 095 684 389 Phone  WEBSITE +61 8 9486 4036  www.frontierresources.com.au    

   

 ASX Limited Market Announcements Platform   19 August 2020 

 

Yava Gold Veins Demonstrate a 3km Wide Zone of Mineralisation 

An  independent  review  of  the  historical  NNW‐trending  Soju‐Yava  gold  veins  reveal  a mineralised system up to 300m wide and 20 to 600 metres in strike length at Soju with best trench sampling results at the Justin Vein of 1.0m @ 158.37 g/t Au. 

At the Yava prospect, trench sampling at the Kairo vein returned 1.5m @ 10.96 g/t gold and its mineralised vein system demonstrates a 3km wide zone of continuous gold mineralised veins  striking NNW that extends over  the Saki‐Yava‐Soju‐Salat prospects. Best  surface  rock samples include 1,750g/t Au and with drilling results of 0.3m @ 6.13 g/t Au. With only seven drillholes completed, the Soju‐Yava vein system is virtually untested by drilling and further drilling is recommended. 

An  independent  specialist  interpretation  of  the  Saki‐Soju‐Yava‐Salat  mineralised  zone  is underway ahead of a fieldwork program to commence at the Kimono gold system. 

 

Frontier Resources Limited (Frontier or the Company) is pleased to announce that an independent analysis 

has been completed of historical surface sampling and drilling at the Soju‐Yava‐Salat prospect areas. Three 

NNW‐trending  vein  systems  have  been  defined  which  demonstrate  a  3km  wide  zone  of  paralleling 

continuous veins systems that occur between the Saki and Salat prospects (Figure 1). The Soju prospect was 

discovered and initially explored by Newmont during 1986‐89 and subsequently explored by Tolukuma Gold 

Mines (TGM) in 1999‐2000. 

Mapping and sampling by Newmont in 1989 returned best rock float samples of 1,750 g/t Au, 183 g/t Au 

and 183 g/t Au (refer to ASX Announcement dated 28 May 2019). A total of eight separate vein systems 

were defined including the Ingesa Vein, Kamikaze Vein, Tevuna Vein, Aida Vein, Rong Vein, Karuka Vein, 

Justin Vein, and Discovery Veins (Figure 2 and Table 1). 

Subsequently, TGM made significant new vein discoveries at Soju including the Antonio Vein and the Valab X Vein with Trench results including 1.2m @ 18.8 g/t Au. TGM’s work also located further extensions of the known quartz‐sulphide breccia‐veins at Soju and from the veins at the Yava Prospect (Figure 2).  TGM trench sampling results include, from Table 1: o 1.0m @ 158.37 g/t Au from the Justin Vein at Soju. o 1.0m @ 16.8 g/t Au from the Kairo Vein at Yava. o 1.5m @ 10.95 g/t Au from their newly discovered Marakus Vein at Yava. o 1.5m @ 3.72 g/t Au from their newly discovered Gimala Vein at Yava.  

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 Figure 1: Saki‐Yava‐Soju‐Salat System of Gold Veining 

 

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Table 1: Soju‐Yava Prospect – Newmont Trench Sampling Highlights 

Vein  Location  Description  Assay Result 

Soju Prospect: 

Antonio Vein  519738.3E/9055975.7N 1.0m wide; possible continuation of the Discovery Vein 

1.3m @ 1.49g/t Au 

Justin Vein  519569.8E/9055102.9N 0.3m quartz‐sulphide vein, parallel to Tevuna Vein 

1.0m @ 158.37g/t Au 

Valab X Vein  519713.9E/9055010.8N Mineralised E‐W cross vein; truncates Justin Vein 

1.2m @ 18.80g/t Au 

Aida Vein  519976.1E/9054810.4N SE extension of Aida Vein  1.5m @ 2.44g/t Au 

Yava Prospect: 

Kairo Vein  518297E/9054583.6N  Up to 2.0m wide quartz‐sulphide vein 

1.0m @ 16.8g/t Au 

Gimala Vein  518696.6E/9054940.0N Newly discovered 2.0m wide quartz‐sulphide vein with a 3.0m silicified envelope 

1.5m @ 3.72 g/t Au 

Marakus Vein  518708.8E/9055019.1N Newly  discovered  2.0m wide quartz‐sulphide  vein  with  a 3.0m silicified envelope 

1.5m @ 10.95g/t Au 

Odeli X Vein  518192.4E/9054958.3N Up  to  3.0m  wide  quartz‐sulphide vein 

3.0m @ 8.65g/t Au 

  The veins are typically +/‐ 1.0m wide with strike lengths ranging from 20m (Salat Vein) to 90m (Rong Vein) to 600m (Tevuna Vein) and strongly mineralised at structural intersections. Compositionally the veins are “base metal  rich  comprising  coarse  bladed  stibnite  in  the  northwest  (Ingesa  and  Kamikaze  veins)  ranging  to sphalerite‐galena‐chalcopyrite in the southeast (Aida Vein).  

TGM mapped and sampled the following veins (Figure 2):  Antonio Vein  is 1.0m wide and  interpreted to be the continuation of the Discovery Vein  that crops out  in Fedang Creek and a quartz‐sulphide vein outcrop in upper Misosa Creek;  Aia Vein is a 0.30m wide quartz‐sulphide vein, possibly the southeast continuation of the Rong Vein;  Justin Vein exposed in Tevuna Creek and Auga River, a 0.30m wide quartz‐sulphide vein that runs parallel with the Tevuna Vein.  Valab X Vein, a significantly mineralised E‐W cross vein. Valab X Vein and the Karuka X Vein  truncate the Justin Vein;  Aida Vein which crops out southeast of Ainio Creek and “appears to continue further into the mountain”.    At  Yava,  mineralogy  typically  comprises  quartz‐pyrite‐marcasite,  with  very  rare  traces  of  galena  and sphalerite. The best gold values are associated with base metal sulphides marcasite, galena, and sphalerite. 

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 Figure 2: Soju, Yava, Salat Mineralised Vein System  

 A first‐pass scout drilling program of 7 holes totalling 1,043.6m (SD01‐07) was undertaken by TGM in early 2000 at one location at the Rong vein (Figure 2). Six of the 7 holes were inclined in the same dip direction of the vein and as such the Soju‐Yava vein system is virtually untested by drilling. The target veins were sub vertical with widths up to 1.5m and surface assay values up to and locally exceeding 200g/t gold. Best drillhole intervals were 0.15m @ 25.2g/t gold in SD4 (54.3m depth) and 0.3m @ 6.13g/t gold in SD5 (73.0m depth) (refer to ASX Announcement dated 15 January 2020). Base metals were high; the best recorded values were 1.35% lead in SD4, 4.45% copper in SD5 and 9.4% zinc in SD5. Visible gold was noted in two samples (refer to ASX Announcement dated 15 January 2020).  During the drilling, TGM completed a short trenching program at the Justin, Rong and Valab X Veins (Table 3). The best gold grades from the mineralised quartz‐sulphide veins range between 0.3m @ 9.21 g/t Au at the Karuka vein and 0.4m @ 14.75 g/t Au at the Rong Vein, indicating that the Rong Vein extends for another 140m southeast. TGM recommended further trench sampling of the veins to trace them further northwest to add to their volume potential and grade. 

 

Table 3: Soju Prospect – TGM Vein Sampling Highlights 

Sample Number 

Sample Location 

Easting  Northing Width metres 

Au (ppm) 

Ag (ppm)

Pb (ppm) 

Cu (ppm) 

Zn (ppm)

Sb (ppm) 

                   314617  Trench #1  519569  9054883 2.0  0.05 1.4 10  29  29 19314618  Trench #1  519567  9054882 2.0  0.58 3.3 22  55  34 21314619  Trench #1  519564  9054881 0.1  0.72 13.3 216  27  25 66314620  Trench #1  519561  9054880 0.4  14.75 154.0 449  190  71 268314621  Trench #1  519560  9054879 0.1  2.37 33.2 391  54  23 102314622  Trench #1  519557  9054877 2.0  0.01 1.6 50  36  41 13314623  Trench #2  519578  9054854 2.0  <0.01 0.1 8  14  15 9314624  Trench #3  519593  9054829 2.0  <0.01 0.1 9  13  16 6314625  Trench #4  519607  9054801 1.0  <0.01 0.4 13  25  23 13

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 From trenching, mapping and drilling TGM concluded that:  1. At  Soju,  the  highly  anomalous  gold  values  in  surface  samples  are  due  predominantly  to  supergene 

enrichment. Bulk sampling of the Justin Vein provided an average gold value of 30.9 g/t gold and may be indicative of oxide grades at Soju (refer to ASX Announcement dated 15 January 2020). 

2. There appears to be no field evidence of surficial leaching and oxidation at Yava and the mineralisation may be primary. Best gold grades are hosted by quartz‐pyrite‐marcasite veins 

3. Weak hematite and jasper alteration/veining  in drillhole SD7 “together with the major faulting on the Rong (Aloysius) structure, may suggest deeper gold mineralisation below SD7.”  

4. The NNW‐striking gold‐bearing veins are truncated by a series of E‐W dilational cross veins, which are also strongly mineralised particularly at the structural intersections. 

5. It has been recommended that follow up field exploration be focussed initially at Yava for the following reasons: (i) high gold values in surface samples, (ii) probable exposure at a shallower level below palaeosurface than Soju, (iii) evidence of limited surficial enrichment, and (iv) massive lavas provide a better potential host by constraining the mineral‐bearing fluids.  

 This  announcement  has  been  authorised  for  release  by  the  Directors  of  the  Company.  For  additional information please visit our website at www.frontierresources.com.au 

FRONTIER RESOURCES LTD 

Competent Person Statement: The  information  in this  report  that  relates to Exploration Results and Mineral Resources  is based on  information compiled by or compiled under the supervision of Peter Swiridiuk ‐ Member of the Aust. Inst. of Geoscientists.  Peter Swiridiuk is a Technical Consultant and Non‐Executive Director for Frontier Resources.  Peter Swiridiuk has sufficient experience which is relevant to the type of mineralisation and type of deposit under consideration to qualify as Competent Person as defined in the 2012 Edition of the Australasian Code of Reporting Exploration Results, Mineral Resources and Ore Resources.  Peter Swiridiuk consents to the inclusion in the report of the matters based on the information in the form and context in which it appears. Additionally, Mr Swiridiuk confirms that the entity is not aware of any new information or data that materially affects the information contained in the ASX releases referred to in this report. 

314626  Trench #4  519607  9054798 0.1  0.19 1.6 50  25  33 14314627  Trench #4  519606  9054800 1.0  <0.01 0.4 15  19  13 9314628  Trench #4  519603  9054801 3.0  0.04 1.3 62  30  17 25314629  Trench #4  519603  9054798 0.2  0.39 10.9 83  22  16 13314630  Trench #4  519600  9054796 4.0  0.12 0.7 23  30  19 12314631  Trench #4  519601  9054802 0.1  0.29 6.0 193  21  16 17314632  Trench #4  519598  9054800 2.5  0.05 1.8 89  32  30 11314633  Trench #4  519597  9054795 0.1  1.09 2.6 30  22  31 13314634  Trench #4  519596  9054800 0.3  0.76 0.8 38  27  35 13314635  Trench #4  519597  9054795 0.4  2.16 3.9 239  30  18 32314636  Trench #4  519593  9054794 4.5  0.19 0.6 73  50  35 13314640  Trench #5  519812  9054838 1.0  0.17 1.1 890  83  69 18314641  Trench #5  519810  9054837 0.4  0.12 2.0 3030  69  143 29314642  Trench #5  519809  9054838 1.5  0.44 14.1 5165  257  58 53314643  Trench #5  519807  9054838 0.3  9.21 292.0 9460  1231  485 10530314644  Trench #5  519763  9054964 1.5  0.28 1.4 345  40  65 12314645  Trench #8  519773  9054964 2.0  <0.01 0.6 31  6  4 19314646  Trench #7  519762  9054882 2.0  0.03 0.8 58  5  8 22314647  Trench #7  519765  9054882 2.0  <0.01 0.8 19  8  66 18314648  Trench #7  519768  9054882 2.0  <0.01 0.7 67  7  32 15314649  Trench #7  519774  9054883 2.0  <0.01 0.8 31  12  41 20314650  Trench #7  519775  9054884 2.0  <0.01 0.7 147  9  46 14314651  Trench #7  519778  9054884 2.0  <0.01 0.9 28  12  44 19314652  Trench #9  519762  9055022 2.0  <0.01 0.2 26  8  6 15314653  Trench #9  519768  9055019 2.0  <0.01 0.6 31  12  11 22314654  Trench #9  519775  9055021 2.0  <0.01 0.2 27  8  6 17

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JORC Code, 2012 Edition – Table 1 Report of Exploration Results

Section 1 Sampling Techniques and Data (Criteria in this section apply to all succeeding sections.)

Criteria JORC Code explanation Commentary

Sampling techniques

Nature and quality of sampling (eg cut channels, random chips, or specific specialised industry standard measurement tools appropriate to the minerals under investigation, such as down hole gamma sondes, or handheld XRF instruments, etc). These examples should not be taken as limiting the broad meaning of sampling.

Include reference to measures taken to ensure sample representivity and the appropriate calibration of any measurement tools or systems used.

Aspects of the determination of mineralisation that are Material to the Public Report.

In cases where ‘industry standard’ work has been done this would be relatively simple (eg ‘reverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assay’). In other cases more explanation may be required, such as where there is coarse gold that has inherent sampling problems. Unusual commodities or mineralisation types (eg submarine nodules) may warrant disclosure of detailed information.

Drill core samples were sawn in two, with half returned to the core tray for visual inspection and the other half sent to the TGM lab for assaying. Downhole surveys were completed.

Sampling was supervised and reported by on-site geologists to ensure sample representivity.

Diamond core HQ drilling was done to obtain mineralised vein sections in multiples of 50cm then to work back to the remainder of the core section to be assayed at intervals marked by the site geologist and separated by wooden core markers. 2kg samples were oven dried for 6-8hrs @ 120DegC, crushed to -2mm, split by Riffle Jones splitter. 300g were pulverised to <75microns with >95% passing with a final 20g submitted for assay.

All rock&trench samples were logged in a rock-chip sample ledger and assayed using standard laboratory techniques. All sampling was supervised and reported by on-site geologists.

Material aspects of the mineralisation are noted in the text of the document.

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).

Longyear38 man portable drill rig operated by United Pacific Drilling.

PQ and HQ diamond core was orientated.

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.

Core was visually assessed on-site on tables constructed at the core shed

Drilling recovery was essentially 98 – 100% with an average of over 99%.

Diamond impregnated bits and driller experience contributed to good core recoveries. No relationship exists between grade and recovery.

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.

Drill core was sampled logged on paper by an experienced geologist for alteration mineralogy, lithology and mineralisation. Geotechnical parameters included recovery, compressive strength and RQD to a level of detail to support appropriate Mineral Resource estimation, mining studies and metallurgical studies. Core trays were photographed in two trays at a time. Part of the logging included unconfined compressive strength estimations.

Logging was qualitative in nature and based on geological observations. Detailed geological descriptions were hand-written into a drill log for each core section and transferred to spreadsheets.

The total length and 100% of all drill core was logged. Trench samples geologically logged to a level of detail to

support appropriate Mineral Resource estimation, mining studies and metallurgical studies.

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.

Drill core samples were sawn in two, with half returned to the core tray for visual logging and all the other half sent to the TGM lab for assaying.

Drill half core 2kg samples were submitted to the Laboratory for sample preparation and assaying.

Sampling was supervised by TGM’s Senior Geologist by visual inspection. Core sample sizes of 50cm as

Frontier Resources Ltd Exploration Licence Information

Exploration Licence 

Number and Name Ownership

sub‐

blocks

AREA 

(sq.km)* Grant Date Expiry Date

EL2531 ‐ Tolukuma 100% Frontier Copper PNG Ltd 130 441.72 25‐Feb‐19 24‐Feb‐21

ELA2529 ‐ Gazelle 100% Frontier Copper PNG Ltd 211 719.51 N/A N/A

Total of Granted EL's 130 441.72

*1 sub‐block approx. 3.41 sq.km

NB: The PNG Mining Act‐1992 stipulates that EL's are granted for a renewable 2 year term (subject to satisfying work and expenditure commitments)

and the PNG Government maintains the right to purchase up to 30% project equity at "Sunk Cost" if/when a Mining Lease if granted.

7 

Criteria JORC Code explanation Commentary

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.

determined by the geologist by visual inspection are appropriate for the quartz vein material being sampled.

Core was transported to the on-site laboratory by helicopter.

Procedures of drying, crushing, splitting and pulverizing is practiced by TGM local laboratories for analysis. Pulps are irregularly sent to an outside independent laboratory for quality checking.

Sampling has been supervised by TGM’s Senior Geologist and sample sizes are appropriate for the quartz vein material being sampled.

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.

Historical procedures undertaken by TGM were appropriate. Samples were crushed and prepared as 20g samples for assaying for a partial aqua regia digest and AAS for Au, Ag, Pb, Cu, Zn, Sb. The principle of Aqua Regia digest is that gold can be dissolved by a mixture of 3 part hydrochloric acid to one part nitric acid.

Rock samples were fire assayed for total gold and cyanide extractable Ag, Cu. Acceptable accuracy and precision levels were established and reported by the lab.

No Geophysical tools were used Acceptable levels of accuracy were obtained in the

assaying results of Au 0.01 ppm, Cu 1 ppb & Ag 0.01 ppm.

Duplicates were not reported in historical reports.

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.

Verified by senior geologist and other geologists onsite at the time.

No drilling undertaken. All assay data is available on spreadsheets obtained from

geologists working on the project. Trench assay data has been submitted to the MRA library as paper copies which were later scanned to digital format.

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 holes were located initially by tape and compass surveying for drill sections and long sections.

Trench/costeans were located initially by GPS and tape and compass surveying of creeks.

Map Datum is AGD66. Topographic control is low with 40m contours from

1:100,000 plans and 10m contours from airborne DTM contours.

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.

Refer to any attached plans and tables for rock and trench/costean spacing.

Drill hole and trench locations and hence data spacing and distribution is not yet sufficient to establish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedures.

Trench locations and hence data spacing and distribution is not yet sufficient to establish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedures.

Sample compositing was not applied.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.

Trench samples were taken to intersect known mineralisation from surface trench results in a nominally perpendicular orientation as much as practicable. Sample intervals are selected based upon observed geological features and the strike of the narrow quartz veins.

Sample intervals are selected based upon observed geological features and the strike of the quartz veins.

Trench/costean samples have been taken selectively within each trench.

Drill holes are designed to intersect known mineralisation from surface trench results in a nominally perpendicular orientation as much as is practicable. Sample intervals are selected based upon observed geological features and the strike of the narrow quartz veins.

Sample security The measures taken to ensure sample security. Access to site is controlled and rock trench samples are stored on-site in a remote location. Site employees transport samples to the analytical lab. The laboratory compound is secured.

Audits or reviews

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

No audits or reviews of sampling techniques and data have been performed.

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Section 2 Reporting of Exploration Results (Criteria listed in the preceding section also apply to this section.)

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.

Frontier Resources Ltd have a 100% ownership of Frontier Copper (PNG) Limited, which hold 100% title to Exploration Licence EL 2531-Tolukuma. There are no joint ventures or partnerships in place. Frontier Copper PNG Ltd IPA Certification Number: 91414 was re-issued on 26th April 2019 and originally Certified 8th November 2005.

There are no known impediments to operate in the Tolukuma EL. Tenements are granted by the Minister of Mines for a period of two years and security is governed by the PNG Mining Act 1992 and Regulation.

Exploration done by other parties

Acknowledgment and appraisal of exploration by other parties. EL2531 Tolukuma was initially stream sampled by Kenecott in the 1960’s afterwards by CRAE who completed both steam sediment sampling and rock chip sampling.

Newmont 1985-1989 discovered the Tolukuma vein and completed costean and soil sampling and diamond drill holes testing the NW-SE Taula Vein. Newmont completed resource drilling and mine feasibility studies.

Dome Resources purchased the Exploration license from Newmont in 1992 and completed feasibility studies at ML104, granted in 1994, with production commencing in 1995.

In 2000, Durban Roodepoort Deep purchased Dome Resources and took over all its interests in PNG. TGM’s work programs (now 100% DRD included trench sampling and mapping. Work commenced at Saki in 2002 with a programme of extensive trench sampling and mapping and drilling at the Kunda prospect both inside ML104 and within the current EL2531.

Petromin PNG Holdings acquired 100% of the Tolukuma projects from Emperor Mines in 2008. Singapore company Asidokona purchased Tolukuma Gold Mines Ltd from Petromin (PNG Government) in November 2015.

The Tolukuma gold mine is currently under control of a newly appointed investor in which approximately A$21million will be spent on refurbishing the mine, environmental work and resource drilling. EL2531 was acquired by Frontier on a first application basis when it was offered by the MRA.

Geology Deposit type, geological setting and style of mineralisation. The veins are typically +/-1.0m wide with strike lengths ranging from 20m (Salat Vein) to 90m (Rhong Vein) to 600m (Tevuna Vein) and are locally truncated by E-W faults with a left lateral displacement of up to 60 meters. The cross faults are locally strongly mineralised at the structural intersections. The veins are associated with zones of clay+pyrite+quartz (argillic) alteration hosted within propylitically altered Mt. Davidson Volcanics. Within the 300m-wide corridor, the strike of individual veins is variable, averaging about 3200.

Compositionally the veins are “base metal rich comprising coarse bladed stibnite in the northwest (Ingesa and Kamikazi veins) ranging to sphalerite-galena-chalcopyrite in the southeast (Aida Vein). Texturally the veins display variable hydrothermal brecciation, local sulphide banding and a general absence of colloform and crustiform textures.

Soju and Yava Prospects lie entirely within the Late Miocene to Early Pliocene Mt. Davidson Volcanics. At Soju the volcanics comprise light to medium green porphyritic feldspar andesites, crystal lithic tuffs and fluidised volcanic breccias. The crystal lithic tuffs are moderately sorted, well bedded, and contain rare small metamorphic lithic fragments. TGM mapped a possible andesitic intrusive body at Yava.

The fluidised breccias are coarse to very coarse and polymictic with clasts of andesite and porphyritic andesite in a dark grey to black matrix. Clasts are typically well rounded, strongly altered and range from 2cm to 10cm or more. All surface outcrops at Soju are heavily altered and primary features are difficult to identify.

In contrast to Soju, Yava Prospect is located entirely in unaltered predominantly massive, dark green andesitic

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Criteria JORC Code explanation Commentary

volcanics, commonly fractured, which locally grade into hornblende andesites.

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: o easting and northing of the drill hole collar o elevation or RL (Reduced Level – elevation above sea level

in metres) of the drill hole collar o dip and azimuth of the hole o down hole length and interception depth o 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.

A summary of all drillhole information is noted within Tables in the text of ASX referenced announcements.

Frontier has acquired additional historical reports which have drillhole and trench information that are currently being reviewed. Digital databases have also been acquired over a number of prospects within EL2531 and form part of the on-going evaluation process of the tenement.

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.

Exploration results are reported typically within veins. No metal equivalent values are stated.

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’).

The relationship between mineralisation widths & intercept lengths from trench/costeans is moderately well understood

Drillholes are generally targeted perpendicular to known veins. True width projections are noted in Tables within the text of this report where calculated.

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 maps and tabulations of trench/costean intercepts are included within this report.

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.

Comprehensive reporting of all rock chip and trench results has occurred in historical reports and reported by Frontier where appropriate.

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 meaningful exploration data to date has been included in this and previous ASX announcements.

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.

On-going analysis of historical trench and drilling results on prospects within EL2531 is continuing with the next phase of fieldwork being planned at the Kimono, Kimono South and Saki gold prospects.

Appropriate plans are included where possible.