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TRUE NORTH COPPER LIMITED Interim / Quarterly Report 2021

Apr 21, 2021

65934_rns_2021-04-21_8e9f508d-d3e2-42cf-b4f2-8ead87a80761.pdf

Interim / Quarterly Report

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ASX Announcement Media Release

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ASX: DEX QUARTERLY ACTIVITY REPORT FOR THE PERIOD ENDED 31 MARCH 2021

APRIL 22, 2021

Highlights

  • Work has commenced on an interim resource for Mt Flora, incorporating the Phase One drilling, with the results expected to be released by the end of June.

  • Phase Two drilling commenced immediately following the completion of the Phase One drilling resulting in a total of 8,895m from 52 holes of resource drilling completed at Mt Flora and the Quarry anomaly during the quarter.

  • There were 183 new intersections of copper, silver, and gold mineralisation above a 0.2% Cu cut off reported during the quarter that will contribute to the planned resource estimate at Mt Flora.

  • Better intersections from the drilling results reported during the Quarter include:

  • 6m at 1.39% Cu, 29.4 g/t Ag, and 0.03 g/t Au in MFRC011 from 51m (the Mt Flora underground mine lode),

  • 3m at 2.71% Cu, 11.9 g/t Ag and 0.31 g/t Au in MFRC011 from 100m,

  • 17m at 1.12% Cu, 11.4 g/t Agand 0.13 g/t Au in MFRC012 from 55m,

  • 16m at 1.17% Cu, 10.5 g/t Ag and 0.08 g/t Au in MFRC014 from 84m,

  • 8m at 2.99% Cu, 69.0 g/t Ag and 0.24 g/t Au in MFRC019 from 61m,

  • 6m at 2.18% Cu, 23.8 g/t Ag and 0.10 g/t Au in MFRC020 from 20m,

  • 13 m at 1.27 % Cu, 18.4 g/t Ag and 0.02 g/t Au from 54 m in MFRC021,

  • 3 m at 1.07 % Cu, 22.7 g/t Ag and 0.03 g/t Au from 51 m in MFRC022,

  • 2 m at 2.05 % Cu, 23.3 g/t Ag and 0.09 g/t Au from 14 m in MFRC027,

  • 39 m at 0.82 % Cu, 9.2 g/t Ag and 0.05 g/t Au from 25 m in MFRC027,

  • 7 m at 2.63 % Cu, 29.0 g/t Ag and 0.19 g/t Au from 50 m in MFRC027,

  • 2 m at 1.46 % Cu, 21.5 g/t Ag and 0.05 g/t Au from 48 m in MFRC028,

  • 3 m at 1.40 % Cu, 31.1 g/t Ag and 0.03 g/t Au from 122 m in MFRC028,

  • 9 m at 1.00 % Cu, 15.9 g/t Ag and 0.03 g/t Au from 39 m in MFRC029,

  • 2 m at 1.27 % Cu, 24.3 g/t Ag and 0.04 g/t Au from 66 m in MFRC029,

  • 2 m at 1.92 % Cu, 35.9 g/t Ag and 0.04 g/t Au from 96 m in MFRC029,

  • o 3 m at 3.08 % Cu, 49.0 g/t Ag and 0.08 g/t Au from 102 m in MFRC029,

Duke Exploration Limited ABN 28 119 421 868 PO Box 765 Kenmore Q 4069 AUSTRALIA www.duke-exploration.com.au

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  • 16 m at 0.69 % Cu, 9.9 g/t Ag and 0.02 g/t Au from 162 m in MFRC029,

  • 2 m at 1.62 % Cu, 9.1 g/t Ag and 0.16 g/t Au from 44 m in MFRC030,

  • 26 m at 0.65% Cu, 6.5 g/t Ag and 0.03 g/t Au from 190 m in MFRC031 and

  • 16 m at 0.69 % Cu, 9.6 g/t Ag and 0.02 g/t Au from 128 m in MFRC032.

  • The three exploration holes (MFRC047, MFRC048 and MFRC049) targeting the VTEM anomaly to the north of the Mt Flora deposit intersected multiple zones of visible copper mineralisation in RC chips from near the surface to a depth of 225m, which are interpreted to be similar stacked massive sulphide veins to the known mineralisation mined to the south at Mt Flora.

  • The mineralisation intersected in the VTEM exploration holes extends the strike of the Mt Flora deposit by 250m.

  • Due to the successful drilling results to date, Phase Two resource RC drilling has been extended to cover the electrical geophysical anomalies to the north and south of Mt Flora, potential down dip extensions at Mt Flora, and to the north and south of the Quarry anomaly.

  • The Phase Two drilling programme at Mt Flora comprises a total of 68 holes for 11,967m with 16 holes for 2,923m drilled to date.

  • A total of 11,750 samples have been sent to the laboratory in Townsville and 8,250 assay results returned.

  • The silver grades intersected in the new assay results continue to be economically attractive.

  • First pass electrical geophysical and pXRF soil surveys were carried out around the contact of the Bundarra intrusion as drilling at Mt Flora progressed, with exploration started in the South West of the pluton around the historic Quorn prospect.

  • Drill planning to test the geophysical and geochemical targets at Quorn and Absolons is underway with drilling expected to start by mid-May.

  • EPM 27609, which covers the Waitara Porphyry prospect, has been granted to Duke Exploration Limited for a term of 5 years from 18 February 2021 to 17 February 2026 over a total area of 6 sub-blocks.

Next Quarter Work Programme

  • Deliver Interim Maiden Resource at Mt Flora.

  • Complete Phase Two RC drilling at Mt Flora.

  • Finalise geophysical targeting at Quorn.

  • Start the next phase of infill drilling at Mt Flora guided by the results from the resource estimation work.

  • Complete follow up geophysics surveys at Quorn to allow planning of a drilling programme to test the results from this work.

  • Extend the gradient array and pXRF soil sampling to cover anomalous areas from the Quorn surveys that are open.

  • Complete gradient array and pXRF soil surveys over the Isen Underground mine area, to start drill testing by the third quarter of 2021.

  • Finalise land access and drill planning at the Prairie Creek gold target.

This quarterly announcement has been authorised for release by the Board.

Toko Kapea Eugene Iliescu Chairman Managing Director - - t.kapea@duke exploration.com.au md@duke exploration.com.au Ph +64 27 534 2886 Ph +61 418 757 364

Duke Exploration Limited www.duke-exploration.com.au

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Corporate

Duke presented at the Australian Energy and Minerals Conference in Brisbane and the RIU Explorers Conference in - Perth in February 2021 and a video copy of the presentations can be viewed at https://duke exploration.com.au/reports/presentations/.

The Company will be presenting at:

  • RIU Sydney Resources Roundup in May 2021

  • Gold Coast Investment Show Case June 2021

  • Noosa Mining Conference July 2021 and

  • Noosa Festival of Mining in November 2021.

Please see Duke’s website for conference details, ASX announcements, and media coverage, particularly a video presentation of the Bundarra Project (www.duke-exploration.com.au).

Related party payments paid during the quarter comprised Non-Executive Director's fees, salary for the Managing Director, fixed monthly consulting fee paid to the Company Secretary, and consulting fees paid to Kenex Pty Ltd (Kenex) for geological and database management services. Dr. Greg Partington, the Company’s Operations Manager is a director of Kenex. A full explanation of the services provided by Kenex and the contractual relationship was outlined in the Company’s prospectus.

Duke is well placed to meet the June Quarter exploration commitments and planned work programs with $5,212,000 cash in the bank as of 31st March 2021.

    • The announcement made during the quarter can be found at https://duke exploration.com.au/reports/asx announcements/, and listed below:
25-Mar-2021 Change in substantial holding
22-Mar-2021 Change in substantial holding
18-Mar-2021 Presentation to Australian Energy and Minerals Conference
16-Mar-2021 DEX–New Assay Results build to Maiden Resources at MT Flora
25-Feb-2021 EPM 27609 over Waitara Copper and Silver Porphyry is granted
18-Feb-2021 Mineralised Area doubles again at Mt Flora
17-Feb-2021 RIU Explorers Conference Presentation
11-Feb-2021 Area of Copper and Silver Mineralisation more than doubles
29-Jan-2021 Half Year Accounts
29-Jan-2021 Quarterly Activities Report
29-Jan-2021 Quarterly Cashflow Report

Duke Exploration Limited

www.duke-exploration.com.au

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Operations

Bundarra Project, (Duke 100%)

The Bundarra Project comprises the Bundara EPM 26499 and two applications, Duania EPMA 27474 and Waitara EPMA 27609. The tenements are located approximately 130 km southwest of Mackay and 50 km east of Moranbah in central Queensland (Figure 1a ). The Bundarra tenement covers 207 km[2] over the Bundarra Pluton, the Duania Application covers 83 km[2] over the interpreted down plunge extent of the Bundarra Pluton to the southwest and the Waitara tenement application covers 19 km[2] over a geologically related intrusion to Bundarra (Waitara granite), 20 km to the northeast, on a trend of buried intrusions that have been mapped in 3D (Figure 1a). EPM 27609 (Waitara) was granted for a term of 5 years from 18 February 2021 to 17 February 2026 over a total area of 6 subblocks during the period. The process for amalgamating the Bundarra and Duania tenements is being considered.

The Mt Flora prospect is a high priority target for development in the Bundarra Project area (see www.dukeexploration.com.au for project details) and is where initial exploration and resource drilling is being focussed. First pass electrical geophysical and pXRF soil surveys are being carried out around the contact of the Bundarra intrusion as the drilling at Mt Flora progresses, with exploration started in the South West of the pluton around the historic Quorn prospect.

Figure 1a: Location of Bundarra Project (EPM 26499, EPMA 27474, and EMPA 27609) compared to historic prospects and main target areas.

Pattern resource drilling at Mt Flora and the Quarry Anomaly continued during the quarter. A phased approach is being taken to the drilling, which in Phase One is planned to deliver an Inferred JORC 2012 compliant resource over the known area of mineralisation at Mt Flora. The resource drilling is spaced 60m down dip and along strike of the known mineralisation that was mined historically and intersected in the historic drilling (Figure 1b). All drill holes are planned to drill west at between 70-50° to intersect the mineralised lodes dipping 40° to the east. Several planned

Duke Exploration Limited www.duke-exploration.com.au

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hole locations are in topographically challenging areas (gorges and shafts), and the hole locations were adjusted for safety and the azimuth and dip of the holes have been amended to account for the changed hole location and still target the mineralised pierce points at 60m drill trace distance. The drill depths have been adjusted based on pXRF copper and silver results as the holes were drilled, with many holes extended as the mineralisation intersected is deeper than originally interpreted.

All drill holes are planned to drill west at between 70-50° to intersect the mineralised lodes dipping 40° to the east. The main aims of this Phase One programme are:

  • Drill enough pattern holes in Phase One to estimate an inferred resource over the known mineralised strike of 440m at Mt Flora.

  • Test the strike and downhole extent of the Mt Flora mineralisation to the north.

  • Test the geophysical survey anomalies in the granodiorite to the south and east.

  • Drill the interpreted geological contact between the hornfels argillite and granodiorite to test for continuations of mineralised veins into the granodiorite.

  • Prioritise any geophysical anomalies that warrant follow up exploration and infill drilling.

Due to the successful results to date, the pattern resource drilling has been extended to cover the electrical geophysical anomalies to the north and south and potentially down dip extensions and the Quarry Anomaly to the north and south, which is part of the Phase Two programme of pattern resource drilling.

There were 52 pattern resource RC drill holes completed during the quarter at Mt Flora for a total of 8,895m. Of these, 21 holes for a total of 3,901m concluded the Phase One drilling, and 31 holes for a total of 4,994m were from the Phase Two drilling, which is still ongoing. The Phase One program finished with 42 holes for a total of 7,807m compared to an original budget of 43 holes for 7,040m. A total of 59 holes have been drilled for 11,198m since the start of the programme compared to the plan of 111 holes for 19,007m (Figure 1b). The drilling is now averaging 128m per day, which is a significant improvement compared to the last Quarter and is better than budget. There have been 11,750 samples sent to the laboratory in Townsville from both Phase One and Phase Two drilling. A total of 8,250 have been returned from the Phase One drilling, with 3,500 remaining to be announced.

Duke Exploration Limited

www.duke-exploration.com.au

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Figure 1b. Mt Flora drill location plan for the holes completed to date at the Quarry Anomaly and Mt Flora relative to the Exploration Target area, drilled mineralised area, and granodiorite contact, showing the historic drill holes, assayed holes and holes with assays pending (all hole numbers have an MFRC prefix).

Five lines of holes on a 60m by 60m drill spacing have been completed over the known mineralised area to the end of the Quarter, covering a strike of 220m, a width of 240m and to a vertical depth of 100m (Figure 1b), which corresponds to the area that was used to develop the reported Exploration Target (5,500,000-12,000,000 tonnes at 0.5-0.8% Cu for 27,000-96,000 tonnes of copper, 5-15g/t Ag for 884,000-5,780,000 ounces of silver and 0.1-0.1g/t Au for 17,000-38,000 ounces of gold. See www.duke-exploration.com.au to download the Independent Geologists Report for the details of the Exploration Target). This will provide the required coverage to estimate a JORC 2012 Inferred resource in the area that includes all the historic underground workings and historic drill holes (Figure 1b).

The results for all the new holes assayed during the Quarter have been entered into the drill databases and quality control reviews completed. All check samples, blanks, and sample weights have been reviewed as part of an ongoing quality control process and returned results within accepted expected statistical ranges, which confirms the validity of the assay results. There are 183 intersections of copper, silver, and gold mineralisation above a 0.2% Cu cut off returned during the quarter that will contribute to the planned maiden resource estimate for Mt Flora. Mineralisation continues to be predictable and consistent in width, copper grade and orientation between drill holes both down dip and now along strike, which will increase the confidence levels in the planned resource and mining studies at Mt Flora.

Duke Exploration Limited www.duke-exploration.com.au

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Better intersections from the assays reported during the Quarter include:

  • 6m at 1.39% Cu, 29.4 g/t Ag and 0.03 g/t Au in MFRC011 from 51m (the Mt Flora underground mine lode),

  • 3m at 2.71% Cu, 11.9 g/t Ag and 0.31 g/t Au in MFRC011 from 100m,

  • 17m at 1.12% Cu, 11.4 g/t Ag and 0.13 g/t Au in MFRC012 from 55m,

  • 2m at 1.04% Cu, 17.0 g/t Ag and 0.04 g/t Au in MFRC012 from 201m,

  • 24m at 0.36% Cu, 3.6 g/t Ag and 0.03 g/t Au in MFRC013 from 101m,

  • 14m at 0.50% Cu, 4.6 g/t Ag and 0.04 g/t Au in MFRC013 from 129m,

  • 2m at 2.08% Cu, 27.1 g/t Ag and 0.03 g/t Au in MFRC014 from 66m,

  • 16m at 1.17% Cu, 10.5 g/t Ag and 0.08 g/t Au in MFRC014 from 84m,

  • 8m at 2.99% Cu, 69.0 g/t Ag and 0.24 g/t Au in MFRC019 from 61m,

  • 14m at 0.50% Cu, 6.9 g/t Ag and 0.02 g/t Au in MFRC019 from 73m,

  • 6m at 2.18% Cu, 23.8 g/t Ag and 0.10 g/t Au in MFRC020 from 20m

  • § 25 m at 0.37 % Cu, 2.5 g/t Ag and 0.01 g/t Au from 0 m in MFRC021,

  • § 13 m at 1.27 % Cu, 18.4 g/t Ag and 0.02 g/t Au from 54 m in MFRC021,

  • § 23 m at 0.29 % Cu, 3.6 g/t Ag and 0.01 g/t Au from 73 m in MFRC021,

  • § 3 m at 1.07 % Cu, 22.7 g/t Ag and 0.03 g/t Au from 51 m in MFRC022,

  • § 2 m at 2.05 % Cu, 23.3 g/t Ag and 0.09 g/t Au from 14 m in MFRC027,

  • § 39 m at 0.82 % Cu, 9.2 g/t Ag and 0.05 g/t Au from 25 m in MFRC027, § 7 m at 2.63 % Cu, 29.0 g/t Ag and 0.19 g/t Au from 50 m in MFRC027,

  • § 2 m at 1.46 % Cu, 21.5 g/t Ag and 0.05 g/t Au from 48 m in MFRC028,

  • § 3 m at 1.40 % Cu, 31.1 g/t Ag and 0.03 g/t Au from 122 m in MFRC028,

  • § 9 m at 1.00 % Cu, 15.9 g/t Ag and 0.03 g/t Au from 39 m in MFRC029, § 2 m at 1.27 % Cu, 24.3 g/t Ag and 0.04 g/t Au from 66 m in MFRC029, § 2 m at 1.92 % Cu, 35.9 g/t Ag and 0.04 g/t Au from 96 m in MFRC029, § 3 m at 3.08 % Cu, 49.0 g/t Ag and 0.08 g/t Au from 102 m in MFRC029, § 16 m at 0.69 % Cu, 9.9 g/t Ag and 0.02 g/t Au from 162 m in MFRC029, § 2 m at 1.62 % Cu, 9.1 g/t Ag and 0.16 g/t Au from 44 m in MFRC030, § 26 m at 0.65% Cu, 6.5 g/t Ag and 0.03 g/t Au from 190 m in MFRC031, § 14 m at 0.26 % Cu, 2.3 g/t Ag and 0.02 g/t Au from 108 m in MFRC032 and

  • § 16 m at 0.69 % Cu, 9.6 g/t Ag and 0.02 g/t Au from 128 m in MFRC032 (Figure 3, Figure 4, Figure 5 and Table 2).

The assay results from the first line of drilling at Mt Flora have been used to update the geological interpretation of the mineralisation at Mt Flora in relation to the underground workings and granodiorite contact. The four historically mined copper lodes have been intersected and nine new massive sulphide veins confirmed by the assay results, taking the total number of veins mapped to thirteen that covers a true width of 345m from the hanging wall vein in the Quarry mineralisation to the footwall vein in the western-most veins (compare Figure 2 and Figure 3). The continuity of the veins is excellent down dip forming a continuous zone of mineralisation from the surface to 310m down dip or a vertical depth of 260m. A new vein system has been intersected in holes to the north of the Quarry Anomaly that is interpreted to be the continuation of the Quarry Anomaly to the north into the hornfels, which intersected the highest copper, silver, and gold grades intersected in drilling to date, including 10.85% Cu, 261 g/t Ag and 0.89 g/t Au in the intersection for hole MFRC019. These holes could extend the strike of the Quarry Anomaly mineralisation by an additional 100m and remain open at depth to the east and the north.

Duke Exploration Limited

www.duke-exploration.com.au

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Figure 2. Drill section on 7,572,090mN of the original interpretation of the geology of the main copper lodes at Mt Flora constrained by the historic drilling, Mt Flora underground mine workings, and the granodiorite contact.

Figure 3. Drill section on 7,572,090mN of the interpretation of the geology of the main copper lodes at Mt Flora constrained by the Phase One drilling in relation to historic drilling, Mt Flora underground mine workings, and the re-interpreted granodiorite contact.

Duke Exploration Limited

www.duke-exploration.com.au

9

The current interpretation of the geometry of the massive sulphide copper and silver veins and their spatial relationship to the granodiorite is confirmed on all of the sections drilled to date and the mineralised area is now seven times larger than first interpreted, mainly due to the mineralised zone being wider than first thought, particularly to the west (Figure 1b, Figure 3, Figure 4 and Figure 5). The new results from MFRC 027 on Section 7,572,090mN through the area of underground workings are particularly important as the hole confirms that unmined veins continue to the west, with intersections of 2 m at 2.05 % Cu, 23.3 g/t Ag, and 0.09 g/t Au from 14 m, 39 m at 0.82 % Cu, 9.2 g/t Ag and 0.05 g/t Au from 25 m and 7 m at 2.63 % Cu, 29.0 g/t Ag and 0.19 g/t Au from 50 m (Figure 1b and Figure 3). Additional holes have been drilled to test the extent of these new veins on the sections to the north and south (Figure 1b), which have assays still to be returned. If mineralised, as expected this will further increase the width and add to the resource potential of the Mt Flora vein system.

The veins have been closed off to the east down-dip on all sections drilled (Figure 3, Figure 4, and Figure 5). The mineralisation has also been closed off to the south and at depth past the granodiorite contact, with MFRC024MFRC026 unmineralised (Figure 1b). Although the next line to the north with MFRC038- MFRC041 is mineralised based on logging of chalcopyrite and the assays for these holes will be reported in the next quarter once validated (Figure 1b). The intersections on Section 7572150mN confirms that the mineralisation plunges to the north parallel to the dip of the granodiorite contact (Figure 5). The down dip length of the veins continues to be between 240320m on the new sections drilled and mineralisation is open to the west and to the north down plunge, although it is expected the mineralisation will become deeper in this direction.

Figure 4. Drill section on 7,572,030mN of the interpretation of the geology of the main copper lodes at Mt Flora constrained by the Phase One drilling and the granodiorite contact. Some of the intersections listed in Table 2 have been left off for clarity.

Duke Exploration Limited

www.duke-exploration.com.au

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Figure 5. Drill section on 7,572,150mN of the interpretation of the geology of the main copper lodes at Mt Flora constrained by the Phase One drilling and the granodiorite contact. Some of the intersections listed in Table 2 have been left off for clarity.

Three exploration holes were drilled during the Quarter to test the electrical geophysical anomaly to the north of the main underground workings at Mt Flora (Figure 1b and Figure 6). The anomaly has been identified in all electrical surveys, including, VTEM, ground EM, and gradient array IP surveys, and is along strike of the known mineralisation mined and drilled at Mt Flora (Figure 6).

Figure 6. Interpretation of potential new zones of copper, silver and gold mineralisation to the north of the Mt Flora underground mines mapped by conductivity in ground EM and GAIP surveys.

Duke Exploration Limited

www.duke-exploration.com.au

11

The three exploration holes (MFRC047, MFRC048, and MFRC049) targeting the VTEM anomaly to the north of the Mt Flora deposit have been completed but assays are still pending (Table 1 and Figure 1b). All the samples from these holes have been logged, data checked, and results integrated into the drill database. All the holes intersected multiple zones of visible copper mineralisation in RC chips to date from near the surface to a depth of 225m, which are interpreted to be similar stacked massive sulphide veins to the known mineralisation mined to the south at Mt Flora (Figure 7). These holes extend the strike of the Mt Flora deposit that requires resource drilling by 250m, which will further add to the mineralised area defined by the drilling to the south (Figure 1b).

Figure 7. Drill chips of chalcopyrite from massive sulphide veins intersected by the VTEM anomaly drilling at Mt Flora.

The mineralisation intersected by the VTEM exploration holes is significant not only for extending the strike potential of the resource at Mt Flora into an area not previously mined or explored but also because the mineralisation confirms the source of the VTEM anomaly at Mt Flora as copper bearing sulphide mineralisation. This provides confidence that the remaining 40 VTEM anomalies reported previously that have not been tested by drilling to date are also due to copper bearing massive sulphide mineralisation (See www.duke-exploration.com.au to download the Independent Geologists Report for the details of the VTEM plate anomalies). This provides support for the exploration strategy underway at a pluton scale at Bundarra and also excitingly provides additional evidence for the presence of a very large scale mineral system at Bundarra that has a 48 kilometre extent that has the potential to develop potentially Tier One long life mining opportunity.

The most important conclusion from the drilling during the Quarter is that the mineralised area at Mt Flora, including the Quarry mineralisation, is now seven times larger than the area that was used to determine the Exploration Target, which gives confidence that the potential resource at Mt Flora could be much larger than originally thought and could develop into a standalone mining operation that will rapidly grow in the near future from new discoveries at the resource target areas at Quorn, Absolons, Isens, and Rogers.

Duke Exploration Limited www.duke-exploration.com.au

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The exploration and development strategy being used for the Bundarra project is to simultaneously carry out resource development work at Mt Flora while exploring the regional potential of the Bundarra Pluton with the aim of discovering a pipeline of resource development projects to add to the Mt Flora project through organic growth by exploration discovery. pXRF soil sampling and gradient array resistivity and induced polarization (GAIP) surveys continued to be carried out to the south and east of the surveys completed last Quarter towards the Roger and Isens prospects (Figure 8). Detailed EM and 3D IP surveys targeting the GAIP anomalies at Quorn and Absolon were also carried out during the Quarter, with preliminary results under review. These surveys will be used to plan scout exploration drilling at Quorn next Quarter. The 3DIP data processing is underway, with preliminary data provided for review. The results from these surveys are expected for reporting during the next Quarter.

Figure 8. Location map of Quorn soil and electrical geophysical survey areas and IP line (N-S) in relation to Duke targets that include mines, occurrences, drill intersections, soil anomalies, and geophysical anomalies.

Regional pXRF soil sampling continued during the Quarter extending the soil survey at Quorn over the south western part of the Bundarra Pluton from the Absolon prospect west to the Roger prospect to map the copper values and other pathfinder elements in the soil. A total of 1,631 samples were collected on an 80 m by 80 m grid pattern during the Quarter, with the programme planned to continue through the next Quarter. The soil samples were analysed with a Vanta m-series pXRF that provided multielement geochemistry, including pathfinder element useful for mapping porphyry mineralisation like silver, molybdenum, and zinc. The soil samples were collected from 20 cm below the surface in C Horizon soils with the samples sieved to 60 micron and compressed using a 4 cm by 4 cm small plumbing cap for analysis. The pXRF beam was set to 10 seconds for a total of 30 second analysis, with 39 elements analysed for each sample. Copper is the main element used to map potential near surface copper bearing massive sulphide veins like those being drilled currently at Mt Flora.

Duke Exploration Limited

www.duke-exploration.com.au

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Any targets generated from the soil and electrical geophysical surveys are expected to add to the resource development potential at Bundarra in the near term. Drill testing of the targets at Quorn is currently being planned with a second drill rig having been sourced. This drilling should start early in the June Quarter, depending on the timing of cattle mustering on the station.

Figure 9. Drone picture of location of Quorn, Absolon and Isens relative to Mt Flora, showing access and topography.

The Waitara Porphyry prospect (EPM 27609), which was granted during the Quarter, covers similar age geology to the Bundarra tenement 20 km to the west (Figure 10). The tenement area covers three historic prospects that have been the focus for historic exploration ( Error! Reference source not found. 1 and Figure 12). The Waitara Porphyry Prospect is the most advanced with the most work done to date. The major metallic minerals described from the exploration to date are pyrite, chalcopyrite, molybdenite and magnetite. Phyllic and propylitic alteration are common but potassic alteration is rare and supergene enrichment is weak.

Duke Exploration Limited www.duke-exploration.com.au

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Figure 10. Location of Bundarra Project (EPM 26499 (Bundarra), EPM 27474 (Duania) and EPM 27609 (Waitara)) compared to historic prospects and main target areas.

Figure 11. Geology map of the Waitara prospect tenement EPM 27609.

Duke Exploration Limited

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Figure 12. State-wide magnetic imagery (TMI) over the Bundarra and Waitara tenements.

The prospects in EPM 27609 occur along the edge of a well-defined arcuate magnetic high that encloses a circular magnetic low (Figure 12), which is interpreted to be a buried intrusion like Bundarra. The signature of the magnetic high is similar to that of the Bundarra granodiorite and may represent a later, more mafic magma that intruded along the margin of an older more felsic intrusive body.

All available historic exploration data have been compiled for the Waitara tenement area and integrated into the Bundarra project databases. The data collected include 631 drillholes, 575 soil samples, 179 stream sediment samples, 85 rock chips, several geology maps and cross-sections, gridded magnetic-radiometric data, and several historic geophysical images. The data have been checked and QAQC carried out, with the data being reasonable quality. A total of 631 drillholes have been completed in the tenement area for a total of 6,724m of drilling. Most are shallow RAB holes, with only 18 holes drilled past 60m down hole. Better historic intersections from the deeper holes include:

  • 24.0 m from 46.0 m at 0.31 Cu % in W-0,

  • 12.0 m from 74.0 m at 0.43 Cu % in W-01,

  • 44.0 m from 92.0 m at 0.29 Cu % in W-01,

  • 18.0 m from 132.0 m at 0.23 Cu % in W-02,

  • 34.0 m from 44.0 m at 0.26 Cu % in W-08,

  • 16.0 m from 22.0 m at 2.14 Cu % in W-PDH3,

  • 19.0 m from 38.0 m at 0.37 Cu % in W-PDH9,

  • 102.0 m from 28.0 m at 0.22 Cu % in WTDH001,

  • 99.0 m from 11.0 m at 0.35 Cu % in WTDH002.

The historic data confirm the initial assessment that the Waitara tenement is highly prospective for porphyry coppermolybdenum mineralisation similar to that currently being explored at Bundarra. The Waitara Porphyry Prospect is the main target in the tenement, having returned several encouraging drill intersections of broad, low-grade Cu-Mo

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16

mineralisation and adds another target for development to the Bundarra project.

Little exploration has been conducted in the area since the 1970s, most of the drillholes are shallow and vertical and are therefore unlikely to have completely tested the potential of the tenement. No modern geophysics has been carried out at Waitara and therefore there is the potential to identify new drill targets using these techniques. Electrical geophysical methods such as 3D IP and VTEM have been shown to accurately map sulphide mineralisation at Bundarra and similar methods would likely be successful at Waitara.

The plan for the next quarter on the Bundarra project is to:

  • Deliver Interim Maiden Resource at Mt Flora.

  • Complete Phase Two RC drilling at Mt Flora.

  • Finalise geophysical targeting at Quorn.

  • Start the next phase of infill drilling at Mt Flora guided by the results from the resource estimation work.

  • Complete follow up geophysics surveys at Quorn to allow planning of a drilling programme to test the results from this work.

  • Extend the gradient array and pXRF soil sampling to cover anomalous areas from the Quorn surveys that are open.

  • Complete gradient array and pXRF soil surveys over the Isen Underground mine area, with the aim of starting drill testing by the third quarter of 2021.

Duke Exploration Limited www.duke-exploration.com.au

17

Prospect Hole Line Easting Northing RL Depth Az Dip Status
Quarry
Quarry
Quarry
Quarry
Quarry
Quarry
Quarry
Quarry
Quarry
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Quarry
Quarry
Quarry
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
MFRC001
MFRC002
MFRC003
MFRC004
MFRC005
MFRC006
MFRC007
MFRC008
MFRC009
MFRC010
MFRC011
MFRC012
MFRC013
MFRC014
MFRC015
MFRC016
MFRC017
MFRC018
MFRC019
MFRC020
MFRC021
MFRC022
MFRC023
MFRC024
MFRC025
MFRC026
MFRC027
MFRC028
MFRC029
MFRC030
MFRC031
MFRC032
MFRC033
MFRC034
MFRC035
MFRC036
MFRC037
MFRC038
MFRC039
MFRC040
MFRC041
MFRC042
MFRC043
MFRC044
MFRC045
7571850
7571850
7571970
7571970
7572030
7572030
7571970
7571970
7571910
7572090
7572090
7572090
7572090
7572090
7572090
7572090
7572030
7572090
7572090
7572090
7572030
7572030
7572030
7571730
7571730
7571850
7572090
7572150
7572150
7572150
7572150
7572150
7572150
7572030
7572090
7571910
7571910
7571970
7571970
7571970
7571910
7571850
7572150
7572030
7571850
662,722
662,746
662,708
662,779
662,776
662,698
662,861
662,941
662,777
662,185
662,189
662,304
662,374
662,362
662,502
662,554
662,495
662,726
662,729
662,659
662,280
662,349
662,392
662,225
662,302
662,319
662,077
662,322
662,360
662,523
662,518
662,466
662,220
662,182
662013
662557
662630
662340
662252
662170
662,235
662,239
662,023
662,076
662,628
7,571,851
7,571,842
7,571,968
7,571,969
7,572,027
7,572,014
7,571,966
7,571,970
7,571,925
7,572,106
7,572,107
7,572,086
7,572,092
7,572,091
7,572,082
7,572,079
7,572,030
7,572,089
7,572,089
7,572,090
7,572,032
7,572,029
7,572,035
7,571,730
7,571,730
7,571,850
7,572,090
7,572,144
7,572,150
7,572,144
7,572,144
7,572,142
7,572,144
7,572,030
7572090
7571910
7571910
7571970
7571970
7571970
7,571,915
7,571,850
7,572,150
7,572,030
7,571,850
222
221
230
224
236
233
223
219
222
285
285
305
300
301
278
265
263
264
265
261
283
283
274
218
217
229
261
327
314
296
296
304
305
254
243
240
233
262
255
247
235
228
254
250
230
78
79
61
121
137
76
158
206
98
46
182
212
269
284
302
249
249
15
189
309
171
189
225
79
103
103
133
258
309
338
333
333
255
104
80
80
80
219
87
75
87
87
92
73
75
288
283
266
270
270
280
270
270
250
250
250
268
265
270
270
280
270
270
270
270
270
270
264
270
270
270
0
274
270
270
270
275
280
270
270
270
270
270
270
270
250
270
270
0
270
-60
-80
-50
-50
-60
-60
-50
-50
-50
-60
-70
-50
-80
-55
-55
-55
-55
-55
-55
-55
-55
-55
-65
-55
-55
-55
-90
-55
-60
-72
-55
-55
-55
-55
-60
-55
-55
-55
-55
-55
-60
-55
-55
-90
-55
Unmineralised
Mineralised
Mineralised
Mineralised
Mineralised
Mineralised
Mineralised
Unmineralised
Mineralised
Mineralised
Mineralised
Mineralised
Mineralised
Mineralised
Mineralised
Mineralised
Mineralised
Abandoned
Mineralised
Mineralised
Mineralised
Mineralised
Mineralised
Unmineralised
Unmineralised
Unmineralised
Mineralised
Mineralised
Mineralised
Mineralised
Mineralised
Mineralised
Mineralised
Mineralised
Assays Pending
Assays Pending
Assays Pending
Assays Pending
Assays Pending
Assays Pending
Assays Pending
Assays Pending
Assays Pending
Assays Pending
Assays Pending

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18

Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
MFRC046
MFRC047
MFRC048
MFRC049
MFRC050
MFRC051
MFRC052
MFRC053
MFRC054
MFRC055
MFRC056
MFRC057
MFRC058
7572030
7572330
7572450
7572390
7572210
7572210
7572210
7572210
7572150
7572150
7572150
7572150
7572090
662,872
662,432
662,470
662,407
662,696
662,761
662,832
662,903
662,894
662,805
662,714
662,675
662,874
7,572,030
7,572,330
7,572,450
7,572,390
7,572,210
7,572,210
7,572,210
7,572,210
7,572,150
7,572,155
7,572,142
7,572,147
7,572,090
235
376
352
352
316
304
295
287
279
267
287
292
254
243
333
333
333
243
261
255
333
333
262
123
207
129
270
270
270
270
270
270
270
270
270
265
285
270
270
-55
-55
-58
-55
-55
-55
-55
-55
-55
-55
-67
-55
-55
Assays Pending
Assays Pending
Assays Pending
Assays Pending
Assays Pending
Assays Pending
Assays Pending
Assays Pending
Assays Pending
Assays Pending
Assays Pending
Assays Pending
Assays Pending

Table 1. Drill collar details of Mt Flora RC holes completed since the start of the drilling programmes (MGA94 Zone 55).

Hole Prospect Easting Northing RL From To Width Cu % **Ag g/t ** **Aug/t **
MFRC002
MFRC003
MFRC004
MFRC004
MFRC004
MFRC005
MFRC005
MFRC006
MFRC007
MFRC009
MFRC009
MFRC009
MFRC010
MFRC010
MFRC011
MFRC011
including
MFRC011
MFRC011
including
MFRC011
MFRC011
MFRC011
MFRC012
MFRC012
MFRC012
Quarry
Quarry
Quarry
Quarry
Quarry
Quarry
Quarry
Quarry
Quarry
Quarry
Quarry
Quarry
Mt Flora
Mt Flora
Mt Flora
Mt Flora

Mt Flora
Mt Flora

Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
662,746
662,708
662,779
662,779
662,779
662,776
662,776
662,698
662,861
662,777
662,777
662,777
662,185
662,164
662,175
662,171

662,160
662,154

662,146
662,141
662,135
662,302
662,290
662,282
7,571,842
7,571,968
7,571,969
7,571,969
7,571,969
7,572,027
7,572,027
7,572,014
7,571,966
7,571,925
7,571,925
7,571,925
7,572,106
7,572,099
7,572,102
7,572,100

7,572,097
7,572,096

7,572,093
7,572,092
7,572,090
7,572,086
7,572,086
7,572,085
221
230
224
224
224
236
236
233
223
222
222
222
284
246
244
235
206
191
171
157
142
302
288
279
9.0
29.0
30.0
36.0
74.0
32.0
70.0
21.0
22.0
10.0
26.0
41.0
0.0
45.0
43.0
51.0
55.0
84.0
100.0
101.0
121.0
137.0
153.0
0.0
21.0
33.0
10.0
31.0
31.0
37.0
76.0
33.0
78.0
28.0
23.0
11.0
27.0
42.0
1.0
46.0
44.0
57.0
56.0
85.0
103.0
102.0
125.0
138.0
155.0
8.0
24.0
34.0
1.0
2.0
1.0
1.0
2.0
1.0
8.0
7.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
6.0
1.0
1.0
3.0
1.0
4.0
1.0
2.0
8.0
3.0
1.0
0.30
4.56
0.25
0.28
1.30
0.51
1.53
3.85
0.28
0.71
1.45
0.79
0.24
0.80
0.35
1.39
5.69
0.40
2.71
6.74
0.56
0.40
0.47
0.26
0.41
0.31
6.40
79.45
5.70
6.70
18.10
13.50
27.77
58.16
11.20
34.90
38.90
25.00
0.5
13.5
3.2
29.4
134.0
9.7
11.9
28.9
4.5
4.6
6.7
2.0
5.5
7.9
0.01
0.07
0.00
0.01
0.03
0.02
0.04
0.10
0.01
0.02
0.00
0.02
0.007
0.011
0.039
0.030
0.120
0.009
0.309
0.740
0.063
0.014
0.016
0.015
0.016
0.011

Duke Exploration Limited www.duke-exploration.com.au

19

Hole Prospect Easting Northing RL From To Width Cu % **Ag g/t ** **Aug/t **
MFRC012
MFRC012
including
MFRC012
MFRC012
MFRC012
MFRC012
MFRC012
MFRC012
MFRC012
MFRC012
MFRC013
MFRC013
MFRC013
MFRC013
MFRC013
MFRC013
MFRC013
MFRC013
MFRC013
MFRC013
MFRC013
MFRC014
MFRC014
MFRC014
MFRC014
MFRC014
MFRC014
including
MFRC014
MFRC014
MFRC014
MFRC014
MFRC014
MFRC014
MFRC014
MFRC014
MFRC014
MFRC015
MFRC015
Mt Flora
Mt Flora

Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora

Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
662,275
662,263

662,250
662,240
662,230
662,216
662,211
662,195
662,179
662,174
662,370
662,365
662,363
662,360
662,359
662,357
662,354
662,350
662,347
662,346
662,344
662,361
662,356
662,347
662,342
662,332
662,323

662,317
662,309
662,293
662,280
662,273
662,267
662,241
662,237
662,236
662,495
662,477
7,572,085
7,572,084

7,572,084
7,572,083
7,572,083
7,572,083
7,572,083
7,572,082
7,572,082
7,572,082
7,572,092
7,572,091
7,572,091
7,572,091
7,572,090
7,572,090
7,572,090
7,572,090
7,572,090
7,572,089
7,572,089
7,572,091
7,572,091
7,572,091
7,572,091
7,572,091
7,572,091

7,572,091
7,572,091
7,572,091
7,572,091
7,572,091
7,572,091
7,572,091
7,572,091
7,572,091
7,572,082
7,572,082
271
257
242
232
221
206
201
185
169
164
281
252
241
227
217
206
189
166
143
136
129
301
293
280
274
258
246
238
226
203
184
175
166
128
124
121
268
242
40.0
55.0
55.0
82.0
97.0
109.0
132.0
139.0
161.0
184.0
191.0
18.0
44.0
60.0
70.0
83.0
94.0
101.0
129.0
157.0
166.0
173.0
0.0
10.0
24.0
32.0
52.0
66.0
66.0
77.0
84.0
118.0
140.0
151.0
163.0
210.0
216.0
219.0
12.0
43.0
50.0
72.0
56.0
84.0
98.0
115.0
133.0
141.0
163.0
185.0
192.0
21.0
54.0
61.0
79.0
86.0
97.0
125.0
143.0
161.0
167.0
174.0
1.0
11.0
27.0
35.0
53.0
68.0
67.0
78.0
100.0
121.0
146.0
158.0
166.0
212.0
217.0
220.0
13.0
44.0
10.0
17.0
1.0
2.0
1.0
6.0
1.0
2.0
2.0
1.0
1.0
3.0
10.0
1.0
9.0
3.0
3.0
24.0
14.0
4.0
1.0
1.0
1.0
1.0
3.0
3.0
1.0
2.0
1.0
1.0
16.0
3.0
6.0
7.0
3.0
2.0
1.0
1.0
1.0
1.0
0.90
1.12
7.14
0.33
0.56
0.52
0.92
1.04
0.38
0.34
0.46
0.45
0.28
0.42
0.23
0.70
0.32
0.36
0.50
0.43
0.26
0.41
0.24
0.35
0.27
0.44
0.95
2.08
3.79
0.20
1.17
0.21
0.46
0.25
0.77
0.65
0.24
0.26
0.25
0.25
11.8
11.4
58.1
4.9
11.3
6.2
6.3
17.0
8.5
3.2
3.9
6.8
3.3
9.2
3.5
8.1
3.4
3.6
4.6
7.2
5.5
4.0
0.3
1.9
5.2
4.8
15.8
27.1
49.3
3.9
10.5
3.3
3.5
3.9
8.3
6.2
3.7
5.2
2.0
4.4
0.048
0.127
1.610
0.012
0.015
0.024
0.080
0.040
0.018
0.011
0.019
0.015
0.014
0.008
0.008
0.037
0.024
0.033
0.039
0.013
0.009
0.012
0.008
0.013
0.008
0.031
0.047
0.033
0.060
0.003
0.084
0.012
0.037
0.008
0.008
0.025
0.003
0.003
0.043
0.003

Duke Exploration Limited

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20

Hole Prospect Easting Northing RL From To Width Cu % **Ag g/t ** **Aug/t **
MFRC015
MFRC015
MFRC015
MFRC015
MFRC015
MFRC015
MFRC015
MFRC015
MFRC015
MFRC015
MFRC016
MFRC016
MFRC016
MFRC016
MFRC016
MFRC016
MFRC016
MFRC017
MFRC017
MFRC017
MFRC017
MFRC019
MFRC019
including
including
including
MFRC019
MFRC020
MFRC020
MFRC020
MFRC021
MFRC021
MFRC021
MFRC021
Including
MFRC021
MFRC021
MFRC022
MFRC022
MFRC022
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Quarry
Quarry



Quarry
Quarry
Quarry
Quarry
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
662,455
662,451
662,443
662,424
662,409
662,399
662,394
662,386
662,367
662,358
662,543
662,515
662,491
662,471
662,462
662,435
662,419
662,482
662,455
662,428
662,414
662,720
662,691



662,683
662,652
662,646
662,586
662,273
662,263
662,258
662,245
662,232
662,204
662,342
662,339
662,324
7,572,082
7,572,082
7,572,082
7,572,082
7,572,082
7,572,082
7,572,082
7,572,082
7,572,082
7,572,082
7,572,081
7,572,086
7,572,090
7,572,094
7,572,095
7,572,100
7,572,103
7,572,030
7,572,030
7,572,031
7,572,031
7,572,089
7,572,089



7,572,089
7,572,090
7,572,090
7,572,090
7,572,032
7,572,032
7,572,032
7,572,032
7,572,032
7,572,032
7,572,029
7,572,029
7,572,030
211
205
194
166
146
131
124
112
86
72
250
209
174
145
132
93
70
244
206
166
144
253
211
199
252
242
157
273
258
252
233
214
174
274
269
248
80.0
89.0
102.0
136.0
154.0
179.0
188.0
200.0
234.0
251.0
18.0
68.0
111.0
146.0
162.0
208.0
238.0
20
69
117
143
14.0
61.0
63.0
64.0
65.0
73.0
11.0
20.0
127.0
0
29
35
54
56
73
132
11
17
43
83.0
90.0
104.0
137.0
169.0
181.0
189.0
205.0
235.0
252.0
19.0
69.0
112.0
147.0
163.0
211.0
239.0
26
70
118
144
15.0
69.0
64.0
65.0
66.0
87.0
12.0
26.0
128.0
25
31
41
67
58
96
133
12
18
44
3.0
1.0
2.0
1.0
15.0
2.0
1.0
5.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
3.0
1.0
6
1
1
1
1.0
8.0
1.0
1.0
1.0
14.0
1.0
6.0
1.0
25
2
6
13
2
23
1
1
1
1
0.34
0.29
0.27
0.21
0.26
0.29
0.30
0.31
0.27
0.65
0.37
0.44
0.22
0.91
0.46
0.29
0.20
0.28
0.36
0.46
0.69
0.36
2.99
10.85
5.70
4.41
0.50
0.38
2.18
0.25
0.37
0.32
0.55
1.27
5.77
0.29
0.30
0.25
0.36
0.36
3.5
2.1
2.1
1.8
2.1
2.1
2.9
3.6
2.8
11.2
6.2
10.4
1.2
12.3
6.7
3.5
4.1
3.6
4.3
3.2
5.9
6.5
69.0
261.0
206.0
91.5
6.9
16.8
23.8
2.4
2.5
5.1
8.9
18.4
83.5
3.6
9.5
3.8
6.7
3.4
0.036
0.014
0.019
0.013
0.023
0.058
0.010
0.007
0.005
0.016
0.006
0.008
0.027
0.036
0.009
0.015
0.006
0.01
0.01
0.06
0.06
0.064
0.244
0.481
0.887
0.148
0.017
0.031
0.102
0.022
0.01
0.02
0.02
0.02
0.10
0.01
0.03
0.03
0.02
0.02

Duke Exploration Limited

www.duke-exploration.com.au

21

Hole Prospect Easting Northing RL From To Width Cu % **Ag g/t ** **Aug/t **
MFRC022
MFRC022
MFRC022
MFRC022
MFRC022
MFRC022
MFRC023
MFRC023
MFRC023
MFRC023
MFRC023
MFRC023
MFRC023
MFRC027
MFRC027
Including
MFRC027
MFRC027
MFRC027
MFRC028
Including
MFRC028
MFRC028
MFRC028
MFRC028
MFRC028
MFRC028
Including
MFRC028
MFRC028
MFRC028
MFRC028
MFRC028
MFRC028
MFRC029
MFRC029
MFRC029
MFRC029
Including
Including
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
662,319
662,306
662,297
662,285
662,275
662,263
662,387
662,380
662,368
662,356
662,344
662,334
662,325
662,077
662,077
662,077
662,077
662,077
662,310
662,294
662,285
662,265
662,262
662,260
662,248
662,242
662,239
662,230
662,223
662,214
662,184
662,354
662,350
662,346
662,338
7,572,031
7,572,031
7,572,031
7,572,032
7,572,033
7,572,034
7,572,035
7,572,034
7,572,033
7,572,032
7,572,031
7,572,031
7,572,030
7,572,090
7,572,090
7,572,090
7,572,090
7,572,090
7,572,145
7,572,147
7,572,147
7,572,148
7,572,149
7,572,149
7,572,149
7,572,149
7,572,149
7,572,150
7,572,150
7,572,151
7,572,154
7,572,150
7,572,150
7,572,150
7,572,150
240
221
208
188
170
149
263
248
224
197
170
147
128
246
217
191
177
159
310
287
275
249
246
243
228
221
217
205
197
185
144
304
298
290
276
51
75
86
111
135
159
12
27
55
79
114
135
160
14
25
50
69
83
99
18
21
48
60
96
101
104
122
123
133
138
152
160
178
226
11
18
26
39
42
45
54
76
97
118
136
160
13
30
56
90
115
144
161
16
64
57
71
85
106
24
22
50
67
97
102
105
125
124
134
139
154
168
179
233
12
20
30
48
43
46
3
1
11
7
1
1
1
3
1
11
1
9
1
2
39
7
2
2
7
6
1
2
7
1
1
1
3
1
1
1
2
8
1
7
1
2
4
9
1
1
1.07
0.26
0.32
0.27
0.22
0.21
0.27
1.07
0.99
0.63
0.41
0.32
0.22
2.05
0.82
2.63
0.44
0.59
0.30
0.73
2.65
1.46
0.52
0.52
0.35
0.23
1.40
2.42
0.42
1.16
0.56
0.43
0.37
0.70
0.23
0.25
0.47
1.00
2.95
3.31
22.7
2.2
3.3
2.6
3.2
2.5
11.2
8.3
10.9
9.4
2.5
4.2
2.8
23.3
9.2
29.0
4.5
5.5
3.0
7.4
23.4
21.5
8.2
13.4
8.0
5.7
31.1
58.1
4.7
28.6
5.9
7.4
4.4
10.8
7.8
4.8
8.4
15.9
59.7
45.4
0.03
0.02
0.03
0.01
0.01
0.01
0.05
0.08
0.11
0.01
0.04
0.02
0.00
0.09
0.05
0.19
0.04
0.05
0.03
0.05
0.18
0.05
0.02
0.13
0.01
0.01
0.03
0.04
0.02
0.03
0.03
0.02
0.02
0.01
0.05
0.00
0.01
0.03
0.07
0.07

Duke Exploration Limited www.duke-exploration.com.au

22

Hole Prospect Easting Northing RL From To Width Cu % **Ag g/t ** **Aug/t **
MFRC029
MFRC029
MFRC029
MFRC029
Including
MFRC029
Including
MFRC029
MFRC029
MFRC029
MFRC029
MFRC030
MFRC030
MFRC030
MFRC030
MFRC030
MFRC030
MFRC030
MFRC030
MFRC030
MFRC030
MFRC030
MFRC030
MFRC030
MFRC030
MFRC030
MFRC030
MFRC030
MFRC030
MFRC031
MFRC031
MFRC031
MFRC031
MFRC031
MFRC031
Including
MFRC031
MFRC031
MFRC031
MFRC031
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
662,327
662,321
662,313
662,310
662,304
662,289
662,281
662,268
662,251
662,516
662,509
662,495
662,464
662,455
662,452
662,443
662,440
662,436
662,435
662,432
662,431
662,424
662,420
662,417
662,415
662,411
662,407
662,487
662,465
662,434
662,420
662,410
662,400
662,388
662,368
662,366
662,350
7,572,150
7,572,150
7,572,149
7,572,149
7,572,149
7,572,148
7,572,149
7,572,149
7,572,150
7,572,144
7,572,143
7,572,145
7,572,147
7,572,148
7,572,148
7,572,149
7,572,149
7,572,149
7,572,149
7,572,150
7,572,150
7,572,150
7,572,151
7,572,151
7,572,151
7,572,152
7,572,152
7,572,142
7,572,142
7,572,140
7,572,141
7,572,141
7,572,140
7,572,139
7,572,139
7,572,139
7,572,138
256
246
229
223
211
181
164
136
99
275
253
211
128
103
97
75
66
59
55
48
46
30
19
14
8
-1
-10
253
222
179
158
145
131
113
84
82
58
66
76
96
102
103
113
120
149
162
199
240
22
44
89
178
202
211
234
244
252
256
264
266
281
294
301
306
317
327
52
88
141
165
185
190
204
224
259
262
289
68
81
98
105
104
122
121
154
178
202
243
23
46
91
179
207
212
236
245
253
257
265
267
287
297
302
309
319
328
54
95
146
174
186
216
205
226
261
263
294
2
5
2
3
1
9
1
5
16
3
3
1
2
2
1
5
1
2
1
1
1
1
1
6
3
1
3
2
1
2
7
5
9
1
26
1
2
2
1
5
1.27
0.89
1.92
3.08
7.46
0.75
3.70
0.63
0.69
0.26
0.46
1.36
1.62
0.25
0.28
0.21
0.31
0.30
0.33
0.46
0.29
0.30
0.20
0.27
0.30
0.28
0.88
0.28
0.31
0.45
0.36
0.20
0.87
0.32
0.65
2.04
0.28
0.25
0.26
0.27
24.3
9.4
35.9
49.0
117.0
14.3
70.7
12.4
9.9
4.7
6.5
35.8
9.1
4.0
2.2
2.6
2.6
2.7
6.2
6.2
3.4
2.7
3.6
3.7
4.1
2.4
4.6
4.0
2.9
9.2
5.4
1.4
7.2
3.4
6.5
14.7
2.8
3.6
3.1
3.2
0.04
0.08
0.04
0.08
0.22
0.02
0.08
0.02
0.02
0.05
0.01
0.07
0.16
0.01
0.02
0.03
0.05
0.02
0.01
0.02
0.01
0.02
0.03
0.03
0.02
0.00
0.07
0.01
0.01
0.01
0.03
0.02
0.15
0.01
0.03
0.09
0.03
0.00
0.01
0.02

Duke Exploration Limited

www.duke-exploration.com.au

23

Hole Prospect Easting Northing RL From To Width Cu % **Ag g/t ** **Aug/t **
MFRC031
MFRC032
MFRC032
MFRC032
MFRC032
MFRC032
MFRC032
MFRC032
MFRC032
Including
MFRC032
MFRC032
MFRC032
MFRC032
MFRC032
MFRC032
Including
MFRC033
MFRC033
MFRC033
MFRC033
MFRC033
MFRC033
MFRC034
MFRC034
MFRC034
MFRC034
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
Mt Flora
662,342
662,461
662,444
662,440
662,434
662,432
662,413
662,402
662,390
662,368
662,363
662,352
662,346
662,320
662,316
662,217
662,210
662,129
662,110
662,107
662,101
662,174
662,172
662,142
662,139
7,572,138
7,572,142
7,572,144
7,572,144
7,572,145
7,572,145
7,572,147
7,572,148
7,572,150
7,572,152
7,572,153
7,572,155
7,572,156
7,572,159
7,572,160
7,572,145
7,572,146
7,572,160
7,572,165
7,572,166
7,572,167
7,572,030
7,572,030
7,572,032
7,572,032
47
297
272
266
258
255
226
209
191
155
147
130
119
73
65
300
292
169
136
130
121
243
240
196
191
304
8
38
46
55
59
94
108
128
140
174
187
204
219
273
280
285
4
16
164
203
207
217
13
17
69
76
306
10
39
47
56
60
95
122
144
141
183
189
213
223
275
287
286
8
17
166
204
213
224
14
18
71
77
2
2
1
1
1
1
1
14
16
1
9
2
9
4
2
7
1
4
1
2
1
6
7
1
1
2
1
0.46
0.40
0.28
0.31
0.27
0.51
0.40
0.26
0.69
2.92
0.44
0.54
0.29
0.23
0.52
0.63
2.11
0.57
0.50
0.30
0.31
0.21
0.33
0.22
0.26
0.49
0.26
3.8
1.9
4.4
6.6
3.8
5.4
3.8
2.3
9.6
35.1
6.4
8.6
4.8
1.8
6.1
6.8
20.8
2.7
3.5
3.9
3.3
3.1
3.0
11.3
2.5
4.9
1.9
0.00
0.02
0.01
0.00
0.01
0.02
0.05
0.02
0.02
0.06
0.01
0.01
0.01
0.02
0.07
0.02
0.04
0.03
0.02
0.02
0.02
0.01
0.05
0.02
0.01
0.03
0.02

Table 2. Drill intersections from the Mt Flora Resource RC drilling, using a 0.2% Cu cut off, with a minimum width of 1 metre and including 3 metres of internal waste (MGA94 Zone 55).

Prairie Creek Project, (Duke 90%)

The Prairie Creek Project is located 120 km southwest of Gladstone and 25 km southwest of Biloela, central Queensland, in the EPM 26852 tenement area. This portion of Central Queensland is prospective for porphyry related gold, copper, and molybdenum mineralisation like the Cracow epithermal gold deposit 80 km to the south.

The Prairie Creek prospect is associated with a NE trending elevated gold geochemical soil anomaly (0.5 – 5.0 g/t Au) extending over a strike length of 1.6 km and with a width of 200 m. A zone of outcropping epithermal veining associated with visible gold is spatially associated with the soil anomaly that is over 85 m wide and striking over 450 m with the southern end drilled, but the extent and continuity beyond this outcrop not tested. Only the

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24

southernmost localised geochemical high soil anomaly was drilled at Prairie Creek, which resulted in several promising intersections of gold (see www.duke-exploration.com.au for project details).

A site visit with the Prairie Creek Landowner was carried out with no issues identified. A CCA is being drafted to allow the diamond drilling at Prairie Creek, which is planned to be completed by mid-year. A drill rig has been sourced for the planned drilling.

Red Hill, (Duke 100%)

The Red Hill Project is located approximately 70 km north north-west of Canberra, north and east of Yass in New South Wales in EL 8568. EL 8568 covers an area of approximately 180 km[2] within the prospective Lachlan Fold Belt, with Cu, Pb, Zn, Au, and Ag mineralisation in the project area associated with an interpreted porphyry mineral system. The Lachlan Fold Belt hosts several porphyry Cu-Au deposits such as Cadia, Cowal, and Northparkes and the recently discovered Boda porphyry system, providing the target style and scale for exploration at Red Hill.

The Red Hill Project was identified using mineral prospectivity analysis for porphyry copper-gold style of mineralisation over the entire Lachlan Fold Belt (see www.duke-exploration.com.au for project details). Importantly, several circular and sub-circular magnetic anomalies have been mapped that are spatially associated with the mineralisation discovered to date. These have signatures which may represent buried porphyry intrusions and could be the source of the metals mined in historic local workings.

There was no work during the Quarter.

Emmerson JV tenements NSW (Duke 10%)

Duke has an interest in four exploration licences within the Lachlan Fold Belt (LFB) of New South Wales operated by Lachlan Resources Pty Ltd, a wholly owned subsidiary of ASX listed Emmerson Resources (ASX:ERM). The four tenements that form the joint venture are Wellington (EL 8463 – 390 km[2] ); Fifield (EL8464 – 66 km[2] ); Temora (EL 8652 – 178 km[2] ); and Kiola (EL8590 – 203 km[2] ). This joint venture provides Duke with exposure to porphyry Cu-Au potential over a larger area of the highly mineralised Lachlan Fold Belt, as well as management of these assets by the highly credentialed Emmerson Resources management and exploration team (see www.dukeexploration.com.au for project details).

Emmerson continues to explore the JV tenements with no significant results reported during the quarter. A joint venture meeting was held during the Quarter.

Competent person statement

The information in the ASX announcement is based on information compiled by Dr Gregor Partington, who is a Member of The Australasian Institute of Mining and Metallurgy and a Member of the Australian Institute of Geoscientists. Dr Gregor Partington has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he is undertaking to qualify as a Competent Person as

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25

defined in the 2012 edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’ (the JORC Code).

Dr Gregor Partington is engaged by Duke Exploration as Operations Manager and consents to the inclusion of the information in the ASX announcement in the form and context in which it appears.

Schedule of Mining Tenements and Beneficial Interests Held as at the end of the March 2021 Quarter

Project / Location Country Tenement Percentage held /
earning
Bundarra – Central Australia EPM 26499, EPM 27474, 100%
Queensland EPMA 27609
Prairie Creek – Central Australia EPM 26852 91%
Queensland
Red Hill – NSW Australia EL 8568 100%
Emmerson JV – NSW Australia EL 8463, EL 8652 5%
EL8590, EL8464 10%

Schedule of Mining Tenements and Beneficial Interests

Acquired during the March 2021 Quarter

Project / Location Country Tenement Date Acquired
N/A

Schedule of Mining Tenements and Beneficial Interests

Disposed of during the March 2021 Quarter

Project / Location Country Tenement Withdrawal Date
NA

Duke Exploration Limited

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