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PROSPECT RESOURCES LIMITED — Capital/Financing Update 2026
Feb 8, 2026
65617_rns_2026-02-08_5bb84a8e-7c11-4f67-bc43-7a6c350e8a05.pdf
Capital/Financing Update
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ASX ANNOUNCEMENT 9 February 2026
Updated Mumbezhi MRE Delivers 63% Increase In Copper Resources
HIGHLIGHTS:
-
Significant Resource Expansion: Updated Indicated & Inferred Mineral Resource estimate (“MRE”) delivers 63% increase in tonnage (174 Mt at 0.44% Cu, 0.50% CuEq) and 50% increase in contained copper (772 kt, 0.2% Cu cut-off) compared to the March 2025 MRE.
-
Tier-1 Grade Comparison: Copper grades are now directly comparable to world-class operating mines in the Zambian Copperbelt, further enhanced by a 0.50% CuEq poly-metallic grade.
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Latent Value Unlocked: First-time inclusion of maiden Indicated & Inferred gold and cobalt resources provides substantial potential by-product credits; 2,000+ additional gold assays are underway to further bolster grade confidence.
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High Geological Confidence: Over 41% of the resource is now in the Indicated category, providing a robust foundation for near-term development studies.
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Pipeline of Further Catalysts: Maiden Inferred MRE for West Mwombezhi and an updated Global Exploration Target are both expected in H1 2026.
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Phase 3 Growth: Regional drilling to commence in Q2 2026, targeting the flagship Nyungu Central deposit and the high-priority Chipimpa and Sharamba discovery targets.
Prospect Resources Limited (ASX:PSC) ( Prospect ) is pleased to announce an updated Mineral Resource Estimate ( MRE ) for its Mumbezhi Copper Project ( Mumbezhi ) in north-west Zambia.
The MRE totals 173.8 million tonnes ( Mt ) at an average grade of 0.44% Cu (0.50% CuEq**) across the Nyungu Central and Kabikupa deposits (using a cut-off grade of 0.2% Cu), as tabulated below.
| Deposit | Tonnes (millions)* |
Copper (Cu%)* |
Cobalt (Co%)* |
Au (g/t)* |
Tonnes Contained Cu* |
Tonnes Contained Co* |
Ounces Contained Au* |
Copper (CuEq%)** |
|---|---|---|---|---|---|---|---|---|
| Nyungu Central | 150.8 | 0.43 | 0.02 | 0.02 | 661,100 | 38,600 | 127,100 | 0.50 |
| Kabikupa | 23.0 | 0.48 | - | - | 110,800 | - | - | 0.48 |
| TOTAL | 173.8 | 0.44 | 0.03 | 0.02 | 771,900 | 38,600 | 127,100 | 0.50 |
* Rounding has been applied
| Deposit | Resource Classification |
Tonnes (millions)* |
Copper (Cu%)* |
Cobalt (Co%)* |
Au (g/t)* |
Tonnes Contained Cu* |
Tonnes Contained Co* |
Ounces Contained Au* |
Copper (CuEq%)** |
|---|---|---|---|---|---|---|---|---|---|
| Nyungu Central | Indicated Inferred |
53.8 97.0 |
0.45 0.43 |
0.03 0.02 |
0.03 0.02 |
243,100 418,000 |
19,200 19,400 |
52,300 74,800 |
0.52 0.48 |
| Kabikupa | Indicated Inferred |
18.0 5.0 |
0.46 0.55 |
- - |
- - |
83,600 27,200 |
- - |
- - |
0.46 0.55 |
| TOTAL | 173.8 | 0.44 | 0.02 | 0.02 | 771,900 | 38,600 | 127,100 | 0.50 |
* Rounding has been applied
Prospect Resources Limited ACN 124 354 329 Level 2, 33 Richardson Street. West Perth WA 6005 E: [email protected] W: prospectresources.com.au
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Maiden cobalt and gold MRE components were estimated for the Nyungu Central deposit, delivering strong potential to enhance the value of Mumbezhi via substantial by-product revenue.
** For CuEq grade calculation methodology, refer to page 28 of this release
Prospect’s Managing Director and CEO, Sam Hosack, commented:
“We are delighted with the outcomes of the updated MRE for Mumbezhi. Taking total contained copper tonnage towards 800kt, plus the addition of meaningful cobalt and gold content, provides a further indication of the world-class growth pathway that we believe the Mumbezhi Copper Project is on.
“It is also important to recognize that this update is limited to only the Nyungu Central and Kabikupa deposits. Pending assays from the drilling of the West Mwombezhi prospect last year offer strong potential for declaration of a maiden Inferred MRE for this zone later in the current half.
“The exercise of incorporating gold content into the Nyungu Central MRE has unearthed a broader potential in this respect. We have now commenced a major drill core re-logging and re-assaying programme for the Nyungu Central deposit, with the objective of further bolstering the grade and confidence of the gold content within the updated MRE.
“This programme is set to run in parallel with the extensive Phase 3 drilling and exploration campaign at Mumbezhi this year, which is targeted to commence during Q2 2026. We are particularly excited about the testing of several new regional exploration targets within this campaign. These include the large-scale Chipimpa and Sharamba prospects, identified last year across our comprehensive geochemical and geophysical evaluations of the broader Mumbezhi tenure.
“We have hit the ground running this year and the team is enthusiastically awaiting drilling commencing again. The potential of Mumbezhi continues to grow and we look forward to advancing it purposefully and with the overriding objective of maximizing value for all our stakeholders.”
Updated Mumbezhi Inferred & Indicated MRE (February 2026)
The February 2026 MRE has been estimated in accordance with the JORC (2012) Code guidelines for reporting and is summarised in JORC Table 1 (Section 3), accompanying this release.
The MRE was completed by Mr Steve Rose (FAusIMM), an independent expert, and the Competent Person as defined in the JORC (2012) Code, who is a full-time consultant with Rose Mining Geology Consultants (Perth, WA).
Table 1: Mumbezhi Copper Project Mineral Resource at 0.2% Cu cut-off grade
| Deposit | Resource Classification |
Tonnes (millions)* |
Copper (Cu%)* |
Cobalt (Co%)* |
Au (g/t)* |
Tonnes Contained Cu* |
Tonnes Contained Co* |
Ounces Contained Au* |
Copper (CuEq%)** |
|---|---|---|---|---|---|---|---|---|---|
| Nyungu Central | Indicated Inferred |
53.8 97.0 |
0.45 0.43 |
0.03 0.02 |
0.03 0.02 |
243,100 418,000 |
19,200 19,400 |
52,300 74,800 |
0.52 0.48 |
| Kabikupa | Indicated Inferred |
18.0 5.0 |
0.46 0.55 |
- - |
- - |
83,600 27,200 |
- - |
- - |
0.46 0.55 |
| TOTAL | 173.8 | 0.44 | 0.02 | 0.02 | 771,900 | 38,600 | 127,100 | 0.50 |
* Rounding has been applied
- ** For CuEq grade calculation methodology, refer to page 28 of this release
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Gold Potential
A programme of geologically re-logging Nyungu Central drill core continues at site, and there exists significant upside in defining additional gold resources, with more than 2,000 existing copper drill hole intersections to be re-assayed for gold, ensuring sufficient sample support to confidently increase overall gold grades.
Currently, the gold resource is estimated by only half the number of gold assays, as there are copper assays at present. In the current estimate, where gold assays are absent, a conservative approach has been followed, where a background gold grade of 0.005 g/t Au is assumed.
Grade-Tonnage Analysis
Grade-Tonnage curve analysis of the Nyungu Central and Kabikupa copper Mineral Resources shows the robustness of grade continuity with a reduction in tonnes and increase in copper grade with increasing cut-off, but with more inconsistent continuity as higher-grade cut-offs are applied. Figure 1 shows the global Resource Grade-Tonnage relationship for the Nyungu Central MRE and Figure 2 shows the global Resource Grade-Tonnage relationship of the Kabikupa MRE.
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Figure 1: Grade-Tonnage relationship of Nyungu Central MRE
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Figure 2: Grade-Tonnage relationship of Kabikupa MRE
Summary of Material Information Used to estimate the Mineral Resources
The following is a summary of the material information used to estimate the Mineral Resources, as required by Listing Rule 5.8.1 and JORC (2012) Code Reporting Guidelines.
Mineral Tenement and Land Tenure Status
The Mumbezhi Copper Project is located in the northwest of Zambia, approximately 95km west southwest of the town of Solwezi, in the district of Lumwana.
The mineral tenements include two active Large Scale Mining Licences 39445-HQ-LML (Mumbezhi North) and 39465-HQ-LML (Mumbezhi South) totalling 356km[2] , which were granted by the MLC (Mining Licensing Committee), part of the Ministry of Mines and Mineral Development (MMD) in Zambia for 25 years each, on 31[st] March 2025 (see Table 2).
The Mining Licences have had an Environmental Social and Impact Assessment (ESIA) reviewed and approved by the Zambia Environmental Management Agency (ZEMA) under the various statutory Government Acts and all licences are in good standing with no known impediments.
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Table 2: Mumbezhi Copper Project Tenement Details
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Licence ID Licence Type Application Date Granted Date Expiry Date Area (km2)
39445-HQ-LML Mining 16 December 2024 31 March 2025 30 March 2050 137.59
39465-HQ-LML Mining 18 December 2024 31 March 2025 30 March 2050 218.01
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Figure 3: Mumbezhi Copper Project Location Plan showing Mineral Licences
The tenements are all 100% owned by Osprey Resources Limited, a Zambian based subsidiary of Prospect Resources, who holds an 85% interest in Osprey Resources.
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Local Geology, Structure and Mineralisation
The regional geological setting of Mumbezhi Copper Project is shown below in Figure 4.
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Location of Mumbezhi
Copper Project
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Figure 4: Regional Geological Setting of the Mumbezhi Copper Project in Northwest Zambia (grid lines shown in Latitude and Longitude)
The main copper deposits in the Lumwana district area of northwestern Zambia are hosted by schists to gneisses within the north-eastern lobe of the Mwombezhi Dome. The region is characterised by broadly north-directed thrusts and antiformal basement domes, surrounded by the Katangan Supergroup metasediments, which host both the Central African and Zambian Copper Belts and are major sources of global copper production.
The local stratigraphy is broadly based on the original basement-Katangan stratigraphy, but it has been overturned and modified by shearing, high grade metamorphism and thrusting.
The host rocks at the Mumbezhi Project show contacts from unmineralised quartzfeldspar±phlogopite basement gneiss to a Cu ± Co mineralised quartz-phlogopite-muscovitekyanite-sulphide "mineralised ore schist". Ore-rock relationships suggest the ore is the result of metasomatic alteration and mineralisation of foliated pre-Katangan basement although alternate
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interpretations are that the ore is hosted by sheared and structurally interleaved, mineralised Katangan sedimentary rocks.
The Nyungu Central deposit represents a continuous, well-defined zone of copper mineralisation. The broad mineralised zones of economic interest range between structurally complex, folded geometry at Nyungu Central; to relatively simple, moderate east-dipping geometry at Nyungu South, 4km to the south southeast. The mineralisation boundaries are well-defined at both deposits. Drilling has confirmed the presence of mineralisation over a strike length of 1,700m at Nyungu Central (and 600m at Nyungu South).
The actual orebodies, hosted by the "mineralised ore schist,” comprise high-grade metamorphosed, intensely mylonitised, recrystallised, muscovite-phlogopite-quartz-kyanite schists with disseminated sulphides (typically <5%), and dominated by chalcopyrite and bornite in fresh rock.
Weak Cu, Co and Au mineralisation is also found in the intervening gneiss units between stacked orebodies. The internal structure of the mineralised package has an intensely transposed foliation defined by layer-parallel alignment of both mica and quartz, and is attenuated and boudinaged in part, causing lensing along strike and down dip. The distribution of copper mineralisation is controlled by visibly identifiable strata-bound geology, within which copper grades are generally consistent (see Figure 5).
The Kabikupa deposit is located 11km northeast of the main Nyungu Central deposit and hosted within a banded, mica-rich biotite feldspathic gneiss host rock, with disseminated copper mineralisation present as both chalcopyrite and bornite and occasionally malachite in smaller veinlets. The deposit is dated some 500 million years younger than Nyungu Central and genetically thought to be re-worked from the older deposit during intrusion of the granitic domal features.
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Figure 5: High-grade copper mineralisation from Nyungu Central within the “ore schist”
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Supplied Data
Prospect Resources has collated and compiled a large dataset covering the Mumbezhi Copper Project and the main data utilised in the generation of the Mineral Resource estimates include:
-
Export of the drillhole database dated 24[th] January 2025
-
Extensive archive of maps and reports
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Extensive archive of geophysical images
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Working cross-sections and plans supplied by Prospect’s geological teams
The drillhole data is stored in Prospect’s Geospark 3D spatial database. Prospect spent considerable time validating and checking the historical drilling. All work is being carried out in UTM Grid WGS84_ Zone 35S.
Drilling Techniques and Drill Hole Spacing
Drill hole details (including drilling type) for the Mumbezhi Copper Project are tabulated in Appendix 1.
A review of sample spacing was carried out. This showed that the drill spacing could generally be determined as 30m to 120m at Nyungu Central and 120m to 180m at Kabikupa (see Figures 6-7).
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Figure 6: Plan showing zones of influence for Nyungu Central drilling – circles coloured by radius from drill collar
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Figure 7: Plan showing zones of influence for Kabikupa drilling – circles coloured by radius from drill collar
Review and Validation of Data
All relevant data was initially imported into Micromine software for viewing and validation.
The drill holes were incorporated into a Micromine drill database file called MUMBEZHI_2026.DHDB. The drilling database is summarised in Table 3.
The topographical file “ topography ” was used as the topography surface for Nyungu Central (and Nyungu South), provided by Prospect Resources.
The topographical file “kabikupa_lidar_contours_0_2.dxf” was used as the topography surface for Nyungu Central (and Nyungu South), provided by Prospect.
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A collar plot of the drill holes is shown in Figure 8.
Table 3: Mumbezhi Copper Project drill hole data set used for MRE
| PROSPECT NAME |
Hole_Type | Metres | Number of Holes |
Increase in Metres since last estimate |
Increase in Number of Holes since last estimate |
|---|---|---|---|---|---|
| Kabikupa | DD | 6,325 | 28 | 3,249 | 15 |
| Subtotal | 6,325 | 28 | 3,249 | 15 | |
| Nyungu Central | DD | 15,658 | 49 | 6,467 | 18 |
| RC | 4,829 | 30 | 0 | 0 | |
| RD | 11,226 | 55 | 1,114 | 1 | |
| Subtotal | 31,713 | 134 | 7,581 | 19 | |
| Total | 38,038 | 162 | 10,830 | 34 |
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Mumbezhi Copper Project
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Figure 8: Plan of drill hole collars in the database with Prospect names denoted
28 holes have been ignored for the updated MRE, out of a total dataset of 162. The holes that have been ignored are set out in Table 4 below, along with the reasons for exclusion from the estimate. The doubtful assays are mainly to do with only the significant intercept or composite
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value being available in the database. The data has been used to guide interpretation, but ignored for estimation.
Table 4: List of holes ignored for this estimate (Prospect NC means Nyungu Central. Hole Type DD means diamond drillhole; RC means reverse circulation drillhole)
| Prospect | Hole **Type ** |
Year | Hole Number | Hole length |
Comment |
|---|---|---|---|---|---|
| NC | DD | 1999 | MM295 | 303 | Doubtful assays in historic hole |
| NC | DD | 2012 | NYU1 | 300 | Doubtful assays in historic hole |
| NC | DD | 2012 | NYU2 | 350 | Doubtful assays in historic hole |
| NC | DD | 2014 | NYDD047 | 300 | Doubtful assays in historic hole |
| NC | DD | 2014 | NYDD050 | 264 | Doubtful assays in historic hole |
| NC | DD | 2025 | NCMT001 | 242 | Selective sampling for metallurgicalpurposes |
| NC | RC | 1999 | MBD00RC001 | 228 | Doubtful assays in historic hole |
| NC | RC | 1999 | MBD00RC002 | 180 | Doubtful assays in historic hole |
| NC | RC | 1999 | MBD00RC003 | 200 | Doubtful assays in historic hole |
| NC | RC | 1999 | MBD00RC004 | 252 | Doubtful assays in historic hole |
| NC | RC | 1999 | MBD00RC005 | 200 | Doubtful assays in historic hole |
| NC | RC | 1999 | MBD00RC006 | 156 | Doubtful assays in historic hole |
| NC | RC | 1999 | MBD00RC007 | 234 | Doubtful assays in historic hole |
| NC | RC | 1999 | MBD00RC008 | 196 | Doubtful assays in historic hole |
| NC | RC | 1999 | MBD00RC009 | 150 | Doubtful assays in historic hole |
| NC | RC | 1999 | MBD00RC010 | 125 | Doubtful assays in historic hole |
| NC | RC | 1999 | MBD00RC011 | 100 | Doubtful assays in historic hole |
| NC | RC | 1999 | MBD01RC001 | 228 | Doubtful assays in historic hole |
| NC | RC | 1999 | MBD01RC002 | 200 | Doubtful assays in historic hole |
| NC | RC | 1999 | MBD01RC003 | 195 | Doubtful assays in historic hole |
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| NC | RC | 1999 | MBD01RC004 | 252 | Doubtful assays in historic hole |
|---|---|---|---|---|---|
| NC | RC | 1999 | MBD01RC005 | 270 | Doubtful assays in historic hole |
| NC | RC | 1999 | MBD01RC006 | 200 | Doubtful assays in historic hole |
| NC | RC | 1999 | MBD01RC007 | 200 | Doubtful assays in historic hole |
| NC | RC | 1999 | MBD01RC008 | 130 | Doubtful assays in historic hole |
| NC | RC | 1999 | MBD01RC009 | 220 | Doubtful assays in historic hole |
| NC | RC | 2012 | NYRC031 | 117 | Doubtful assays in historic hole |
| NC | RC | 2024 | NCRD019R | 20 | Hole abandoned;not assayed |
| Total | 28 | 7,263 |
Drill Hole Surveys
Collars plot correctly on the topographic surface. All collar surveys are in UTM WGS84_Zone 35S grid. Details on the downhole survey data are listed below:
-
Drill holes from before 2014 were surveyed by an EMS multishot camera.
-
Drill holes between 2014 and 2024 were surveyed with Reflex Ezishot EMS instrument.
-
Drill holes from 2024 and afterwards have been surveyed by an INS downhole gyroscopic tool.
Bulk Density
Density measurements were taken from diamond drill core (using the mass in water method), and by down hole survey of RC holes The density values were domained based on geology and weathering, to give average values for each domain:
-
1.80 g/cm[3] for overburden;
-
2.47 g/cm[3] for oxide;
-
2.80 g/cm[3] for transition; and
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2.83 g/cm[3] for fresh.
Project Site Visit
The Company’s Competent Person for reporting of Mineral Resources and Exploration Targets, Mr Steve Rose (Rose Mining Geology, Perth, Australia), visited the Mumbezhi Project site during May 2025 to review QAQC, site, software data storage and laboratory protocols used by Prospect at Mumbezhi. Mr Rose saw drilling in progress, the core logging facilities, and visited the SGS and ALS assay laboratories in Kalulushi and Kitwe respectively. Mr Rose indicated that he was satisfied that Prospect Resources were aligned with industry standard practices at the Project, and in some areas working at best practice.
Mr Rose had previously visited Zambia many times during the 1990s, including the Mumbezhi Copper Project area, when carrying out exploration for ZamAnglo and Equinox Resources.
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Subsequently, he visited Kansanshi Copper Mine several times when consulting to FQM during 2010. This has provided him with the geological experience and background to understand the differing complex geology and mineralisation styles present at the Mumbezhi Copper Project.
Geological and Mineralisation Interpretation
With drilling and topography surface loaded into Micromine, the first step was to model the solid geology.
Weathering Surfaces
Weathering surfaces were interpreted for the Nyungu Central and Kabikupa prospects. Weathering surfaces were interpreted in Micromine as strings, and then converted to 3D wireframes. Surfaces were created for base of complete oxidation (“BOCO”) and top of fresh (“TOFR”).
Geology Model
A geology model incorporating faults, cover rocks, and bedrock lithologies was developed from the logged lithology and structures. This was interpreted in Leapfrog and Micromine software.
Mineralisation Model
Copper mineralisation was modelled using implicit vein tools within Micromine for the Nyungu Central and Kabikupa deposits (see Figures 9-12).
Mineralisation was split based on the weathering domain, with mineralisation interpreted as being basically flat in oxide and transition domains, whereas in fresh domains the mineralisation was interpreted to reflect lithology and foliation.
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Mumbezhi Copper
Project
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Figure 9: Plan view showing mineralisation wireframes for Nyungu Central prospect
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Figure 10: Drilling cross section showing mineralised wireframes for Nyungu Central at 8629980mN
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Figure 11: Plan view showing mineralised wireframes for Kabikupa
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Figure 12: Oblique cross-section showing mineralisation wireframes for Kabikupa, together with drillholes coloured by year drilled and lithology. Mineralisation shapes are stippled.
Technical Data Review
QAQC Analysis
QAQC has been documented for post 2014 drilling. The QAQC procedure has involved the use of Certified Reference Materials (CRM’s), blanks and field duplicates.
-
For every 100 samples, 2 standards, 2 field duplicates and 2 blanks are inserted; or
-
In each hole insert 1 standard, 1 field duplicate and 1 blank
-
A selection of CRM’s is available to the geologists and insertion points are predetermined prior to drilling.
-
1m field duplicates RC samples are collected using a riffle splitter.
The results are stored in the drill hole database. They are assessed as the results are returned from the assay laboratory. No material issues have been found with the drill hole sampling.
Domaining
The assay file was flagged with the relevant geology, mineralisation, and weathering codes. Gaps in the downhole sequence were rectified with the missing interval function in Micromine. The assigned background values are shown in Table 5.
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Table 5: Background values assigned to missing or unassayed intervals
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Basic Statistics
Statistical analysis was carried out on samples to determine a suitable cut-off grade for modelling of the mineralisation – copper, cobalt and gold.
Statistical analysis was carried out on samples within the mineralisation wireframes, grouped by weathering and by lithology.
The samples showed a high enough Coefficient of Variation to investigate the need for top-cutting. Plots were generated in Micromine based on weathering, lithological and mineralisation domain based mainly on percentile (95%), and the probability plots. No top-cuts were necessary for Kabikupa samples.
Table 6: Summary of top-cuts used for Nyungu Central by mineralisation/weathering domain. Top cut of 10,000 means no top cut is applied
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Geostatistics
Geostatistical analysis was carried out on the 1m composite assay files to generate variograms for the various mineralisation and weathering domains at Nyungu Central, to allow estimation of copper grades using Ordinary Kriging (OK). Inverse Distance (IDW) estimation method was used for copper, as a check estimate. Gold and cobalt were estimated with Inverse Distance because of difficulties in plotting reliable variograms.
At Kabikupa, Inverse Distance was used for all three metals because of difficulty in plotting useful variograms. Micromine software was used for this analysis.
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Analysis was carried out to test for proportional effect. This showed that it was present, and so relative variograms were used for Nyungu Central copper estimation.
Block Modelling
A blank block model was created using Micromine for Nyungu Central. A separate block model was created Kabikupa. This process and the subsequent estimation processes were controlled by a macro to ensure the process could be repeated, with the variables stored in forms.
Parent block sizes for both MRE models were 10mE x 10mN x 5mRL.
Weathering and lithology codes were assigned to the block models using the geology model wireframes. Sub-blocking to 1m was applied to ensure block model volume reflected the source wireframes.
The Mineral Resource estimation workflow was as follows:
-
Create a blank block model.
-
Assign geology domains to model.
-
Assign weathering domains to model.
-
Assign AIR or BEDROCK based on topography.
-
Assign various mineralisation codes.
-
Assign global density values.
-
Update weathering flagging to fix areas where only a few blocks are coded.
-
Estimate mineralisation domains using Inverse Distance Weighting (IDW) in three passes. Estimate copper, gold and cobalt (the last two only for Nyungu Central).
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Estimate mineralisation domains using Ordinary Kriging (OK) in three passes. Estimate copper only for Nyungu Central.
-
Apply classification and clean up model.
-
Report the models’ outputs
Block Model Estimation
Micromine Version 2026 was used for the Mineral Resource estimations. Estimation was run in three passes, with progressively larger search radius being applied. A code of 1, 2 or 3 was written to the field PASS.
Grades were estimated into the model using the relevant value from the composite file. Only composites from within the mineralisation wireframe were used to estimate blocks within the wireframe. Estimation was carried out using an anisotropic search ellipse, with parameters determined from variographic analysis.
Resource Model Validation
The Resource models were taken through the following validation steps once estimation was completed:
-
Volume comparison with the mineralisation;
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Comparison with composite grades;
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Visual checking;
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Checking for blocks that were empty; and
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Swath plots in various XYZ dimensions.
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Mineral Resource Classification
Classification is based on:
-
Drill spacing;
-
Kriging variables (kriging efficiency and kriging variance); and
-
Estimation pass block filling.
Both Nyungu Central and Kabikupa have been classified into Indicated and Inferred Mineral Resource estimates.
Reasonable Prospects for Eventual Economic Extraction
Clause 20 of the JORC 2012 Reporting Code states that a Mineral Resource must have reasonable prospects for eventual economic extraction (RPEEE) (Joint Ore Reserves Committee, 2012). In applying this Clause, Rose Mining Geology Consultants has considered:
-
Mumbezhi is within 60km of the existing copper processing plants at Sentinel and Lumwana;
-
The Project sits on two 25-year granted mining licences;
-
The copper grades are reported above a sensible cut-off grade;
-
The deposits are geologically similar to those currently being mined at Lumwana and have similar copper grades;
-
Metallurgical testing on transition and fresh mineralised composites from Nyungu Central and Kabikupa has shown that a copper concentrate can be recovered at economic grades.
The field code in the block model is “RESCAT,” with code “2” meaning “Indicated”, and code “3” meaning “Inferred”. Figure 13 shows the classified blocks for Nyungu Central and Figure 14 shows the classified blocks for Kabikupa.
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Figure 13: Long section projection of Nyungu Central Resource block model coloured by classification (looking west)
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Figure 14: Oblique long section projection of Kabikupa Resource block model coloured by classification (looking northeast)
Summary and Reporting
Summaries of Mineral Resource estimates for Nyungu Central and Kabikupa (Tables 7-8). 89% of the Nyungu Central resources report as fresh, whilst 87% of Kabikupa resources report as fresh.
Table 7: Nyungu Central Mineral Resource estimate using 0.2% Cu cut-off and classified using JORC2012
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Table 8: Kabikupa Mineral Resource estimate using 0.2% Cu cut-off and classified using JORC2012
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Comparison with Previous Estimates
Comparison to March 2025 Indicated & Inferred MRE for Mumbezhi Copper Project.
Tables 9-10 show comparisons between the current Mineral Resource estimate (MRE) and the previous estimates for Nyungu Central and Kabikupa respectively. It shows that there has been in increase of 74% more tonnes and 63% more contained copper tonnes at Nyungu Central. At Kabikupa, there is an increase of 12% more tonnes and 3% more contained copper tonnes.
Table 9: Comparison between current and previous Nyungu Central Mineral Resource estimate using 0.2% Cu cut-off and classified using JORC2012
| 2025 | 2026 | % Difference | |
|---|---|---|---|
| CLASSIFICATION | Indicated Inferred Total |
Indicated Inferred Total |
Indicated Inferred Total |
| Mass (000,000) (t) | 37.5 49.2 86.7 |
53.8 97.0 150.8 |
143% 197% 174% |
| COPPER Grade (%) | 0.47 0.50 0.50 |
0.45 0.43 0.44 |
96% 86% 88% |
| COPPER IDW Mass (t) | 178,100 228,700 406,800 |
243,100 418,000 661,100 |
136% 183% 163% |
Table 10: Comparison between current and previous Kabikupa Mineral Resource estimate using 0.2% Cu cut-off and classified using JORC2012
| 2025 | 2026 | % Difference | |
|---|---|---|---|
| CLASSIFICATION | Indicated Inferred Total |
Indicated Inferred Total |
Indicated Inferred Total |
| Mass (000,000) (t) | - 20.5 20.5 |
18.0 5.0 23.0 |
- 24% 112% |
| COPPER IDW Grade (%) | - 0.5 0.5 |
0.46 0.55 0.48 |
- 110% 96% |
| COPPER IDW Mass (t) | - 108,000 108,000 |
83,600 27,200 110,800 |
- 25% 103% |
==> picture [181 x 38] intentionally omitted <==
Upside Potential
Both deposits remain open along strike and down plunge.
Conclusions
The Indicated & Inferred Mineral Resource estimates (MRE) for the Nyungu Central and Kabikupa deposits at the Mumbezhi Copper Project have generated slightly lower copper grades in the February 2026 update, compared to the maiden MRE announced in March 2025[1] .
However, the estimation of maiden gold and cobalt Mineral Resources for Nyungu Central in this 2026 update, indicates valuable by-product commodity values, which have also been supported by metallurgical test work studies carried out by Prospect and reported during 2025.
The Mineral Resources are set out in Tables 7-8. The combined Mineral Resource is estimated to be 173.8 Mt at 0.50% CuEq for 771,900 kt copper, 127,100 oz of gold and 38.6 kt of cobalt, classified as Indicated and Inferred, as set out in the tables above.
Recommendations
-
Carry out open pit optimisation engineering works and scoping economic studies before carrying out further extensive drilling;
-
Significantly increase re-assaying of gold in existing drillholes at Nyungu Central to increase confidence in the sample support for Mineral Resources, with the aim of significantly growing the gold inventory of the deposit; and
-
Progress metallurgical test work on indicative gold and cobalt recoveries from the fresh, transition and oxide domains at Nyungu Central, to confirm metallurgical performance and production of an copper concentrate with economic by-product gold credits.
Proposed Phase 3 Drilling and Exploration Programmes
The Phase 3 drilling and exploration programmes at Mumbezhi are expected to commence in Q2 2026, after the current wet season climatic conditions in northern Zambia subside.
The drilling programme comprising approximately 16,000 metres of diamond core drilling and 2,000m of RC drilling, will target Mineral Resource development work at the key Nyungu Central deposit and the completion of exploratory scout drilling programmes at Chipimpa, Sharamba and Nyungu South.
The latter prospects were defined by strong airborne aeromagnetic anomalies (AEM) that extend discontinuously over 2km each at Chipimpa and Sharamba, and 1km at Nyungu South, with all indicating a depth potential and encouraging structural complexity (like Nyungu Central) in their geophysical signature profiles[2] .
In addition, shallow aircore drilling programmes totalling 8,000 metres will be employed widely across the Mumbezhi Mining Licences during 2026, targeting new areas with concurrent airborne and/or geochemical copper anomalies defined by Prospect during 2025.
1 Refer to PSC ASX release dated 11 March 2025, Maiden Mineral Resource Estimate for Mumbezhi Exceeds 500kt Contained Copper
2 Refer to PSC ASX release dated 19 November 2025, Strong Exploration Targets Identified at Mumbezhi
==> picture [181 x 38] intentionally omitted <==
Additional surface geophysical gridded Induced Polarisation (IP) arrays will also be completed, as these have proven useful for prospect targeting near surface, where electrical and resistivity profiles help define the underlying rock sequences for deeper drill targeting.
The aim and strategy for the 2026 programmes at the Mumbezhi Copper Project is two fold:
-
To firm up, and grow, the flagship Nyungu Central deposit for economic scoping studies during Q4 2026 (including its latent gold endowment); and
-
Complete first-pass drilling of newly defined regional exploration targets, most of which have had no (or at least very limited ineffectual) drilling by previous operators in the area now defined by the Project’s boundaries.
This release was authorised by Sam Hosack, CEO and Managing Director.
For further information, please contact:
Sam Hosack Ian Goldberg Managing Director Executive Director - Financial [email protected] [email protected]
Competent Person’s Statement
The information in this announcement that relates to the Mumbezhi Project Exploration Results, is based on information compiled by Mr Roger Tyler, a Competent Person who is a Member of The Australasian Institute of Mining and Metallurgy (MAusIMM) and The South African Institute of Mining and Metallurgy. Mr Tyler is the Company’s Chief Geologist. Mr Tyler has sufficient experience relevant to the style of mineralisation and type of deposit under consideration and to the activity he is undertaking to qualify as a Competent Person (CP) as defined in the 2012 Edition of the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves”. Mr Tyler consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.
The information in this report that relates to the Mumbezhi Project Mineral Resources and Exploration Targets is based on information compiled by Steve Rose, a Competent Person who is a Fellow of The Australasian Institute of Mining and Metallurgy (FAusIMM). Steve Rose is a full-time consultant with Rose Mining Geology Consultants. Mr Rose 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 Rose consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.
The information in this announcement that relates to the Mumbezhi Copper Project metallurgical testing, is based on information compiled by Mr John Maketo, a Competent Person who is a Member of The Australasian Institute of Mining and Metallurgy (MAusIMM). Mr Maketo has sufficient experience relevant to the style of mineralisation and type of deposit under consideration and to the activity he is undertaking to qualify as a Competent Person (CP) as defined in the 2012 Edition of the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves”. Mr Maketo consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.
Prospect confirms it is not aware of any new information or data which materially affects the information included in the original market announcements. Prospect confirms the form and context in which the Competent Person’s findings are presented have not been materially modified from the original market announcements.
==> picture [181 x 38] intentionally omitted <==
Compliance Statements
Copper equivalent (CuEq) has been used to report Mineral Resource estimated tonnages and associated grades that carry both gold and cobalt credits at the Mumbezhi Copper Project. Prospect has confidence in the existing metallurgical test work completed for transition and fresh copper composites from the Nyungu Central deposit, that gold and cobalt will be recoverable by conventional flotation processing and copper concentration. These metals are commonly traded on worldwide commodity markets. It is the opinion of Prospect that all the elements included in the metal equivalents calculation have reasonable potential of being recovered and sold in the future.
Caution Regarding Forward-Looking Information
This announcement may contain some references to forecasts, estimates, assumptions, and other forward-looking statements. Although the Company believes that its expectations, estimates and forecast outcomes are based on reasonable assumptions, it can give no assurance that they will be achieved. They may be affected by a variety of variables and changes in underlying assumptions that are subject to risk factors associated with the nature of the business, which could cause actual results to differ materially from those expressed herein. All references to dollars ($) and cents in this announcement are in Australian currency, unless otherwise stated. Investors should make and rely upon their own enquiries before deciding to acquire or deal in the Company’s securities.
About Prospect Resources Limited (ASX: PSC, FRA:5E8)
Prospect Resources Limited (ASX: PSC, FRA:5E8) is an ASX listed company focused on the exploration and development of electrification and battery metals mining projects in the broader sub-Saharan African region.
==> picture [181 x 38] intentionally omitted <==
About the Mumbezhi Copper Project
The Mumbezhi Copper Project (85% Prospect) ( Mumbezhi ) is situated in the world-class Central African Copperbelt region of north-western Zambia. Located on two granted Large Scale Mining Licences (39445-HQ-LML; 39465-HQ-LML), Mumbezhi covers approximately 356 square kilometres of highly prospective tenure which lies in close proximity to several major mines which are hosted in similar geological settings
Prospect’s Phase 1 drilling programme at Mumbezhi returned highly encouraging results, validating the growth potential of the significant endowment of copper mineralisation at Nyungu Central and delivering further confidence in a potential future large-scale, open pit mining development at Mumbezhi.
The Phase 2 drilling and exploration programmes began in mid-May and were completed in November 2025.
In February 2026, Prospect delivered an updated JORC-reportable Indicated and Inferred Mineral Resource estimate for Mumbezhi of 173.8Mt @ 0.44% Cu (0.50% CuEq) for 772 kt of contained copper.
==> picture [284 x 235] intentionally omitted <==
About Copper
Copper is a red-orange coloured metallic element in its pure form. It is highly conductive to heat and electricity, and is physically soft and malleable. Copper has been used for various purposes dating back at least 10,000 years. Today, it is mostly used by the electrical industry to make wires, cables, and other electronic components and is the key component. The metal is widely seen as a green-energy transition material, in part because of the wiring needed for electric cars. EVs can use up to 80kg of copper, four times the amount typically used in combustion engine vehicles.
==> picture [181 x 38] intentionally omitted <==
APPENDIX 1 : Drill collar locations and drill hole details for the Mumbezhi Copper Project (Datum is UTM_WGS84_35S )
| Hole_ID | Drill Type | Deposit | DH_East | DH_North | DH_RL | Datum | DH_Dip | DH_Azimuth | DH_Depth |
|---|---|---|---|---|---|---|---|---|---|
| DD23_1 | DD | Nyungu Central | 339101 | 8630197 | 1315 | UTM_WGS84_35S | -70 | 90 | 300.00 |
| DD23_3 | DD | Nyungu Central | 339081 | 8629900 | 1311 | UTM_WGS84_35S | -70 | 270 | 300.00 |
| DD23_4 | DD | Nyungu Central | 339176 | 8629751 | 1308 | UTM_WGS84_35S | -70 | 90 | 300.00 |
| KBDD001 | DD | Kabikupa | 348748 | 8635752 | 1251 | UTM_WGS84_35S | -70 | 228 | 206.90 |
| KBDD002 | DD | Kabikupa | 348880 | 8635900 | 1261 | UTM_WGS84_35S | -70 | 228 | 297.00 |
| KBDD003 | DD | Kabikupa | 349325 | 8635200 | 1251 | UTM_WGS84_35S | -60 | 273 | 154.20 |
| KBDD004 | DD | Kabikupa | 349000 | 8635500 | 1251 | UTM_WGS84_35S | -70 | 228 | 244.91 |
| KBDD005 | DD | Kabikupa | 349780 | 8634830 | 1253 | UTM_WGS84_35S | -70 | 228 | 201.00 |
| KBDD006 | DD | Kabikupa | 348390 | 8635940 | 1255 | UTM_WGS84_35S | -70 | 138 | 290.00 |
| KBDD007 | DD | Kabikupa | 349298 | 8635354 | 1246 | UTM_WGS84_35S | -70 | 228 | 267.00 |
| KBDD008 | DD | Kabikupa | 349987 | 8635042 | 1265 | UTM_WGS84_35S | -70 | 228 | 212.00 |
| KKDD001 | DD | Kabikupa | 348820 | 8635870 | 1318 | UTM_WGS84_35S | -70 | 220 | 250.10 |
| KKDD002 | DD | Kabikupa | 348830 | 8635680 | 1320 | UTM_WGS84_35S | -70 | 220 | 224.10 |
| KKDD003 | DD | Kabikupa | 349190 | 8635420 | 1318 | UTM_WGS84_35S | -70 | 220 | 206.00 |
| KKDD004 | DD | Kabikupa | 348950 | 8635600 | 1320 | UTM_WGS84_35S | -70 | 220 | 220.00 |
| KKDD005 | DD | Kabikupa | 349420 | 8635290 | 1320 | UTM_WGS84_35S | -70 | 220 | 203.50 |
| KKDD006 | DD | Kabikupa | 349218 | 8635356 | 1309 | UTM_WGS84_35S | -60 | 225 | 225.70 |
| KKDD007 | DD | Kabikupa | 348676 | 8635668 | 1314 | UTM_WGS84_35S | -60 | 225 | 150.90 |
| KKDD008 | DD | Kabikupa | 349472 | 8635228 | 1321 | UTM_WGS84_35S | -60 | 225 | 191.10 |
| KKDD009 | DD | Kabikupa | 349000 | 8635390 | 1317 | UTM_WGS84_35S | -60 | 225 | 176.40 |
| KKDD010 | DD | Kabikupa | 349195 | 8635733 | 1324 | UTM_WGS84_35S | -70 | 180 | 379.90 |
| KKDD011 | DD | Kabikupa | 349000 | 8635800 | 1327 | UTM_WGS84_35S | -70 | 220 | 360.40 |
| KKDD012 | DD | Kabikupa | 349139 | 8635926 | 1333 | UTM_WGS84_35S | -60 | 225 | 389.50 |
| KKDD013 | DD | Kabikupa | 349648 | 8635143 | 1327 | UTM_WGS84_35S | -60 | 225 | 170.00 |
| KKDD014 | DD | Kabikupa | 348605 | 8635595 | 1311 | UTM_WGS84_35S | -60 | 225 | 152.60 |
| KKDD015 | DD | Kabikupa | 348817 | 8635544 | 1319 | UTM_WGS84_35S | -60 | 220 | 227.60 |
| KKDD016 | DD | Kabikupa | 349012 | 8635353 | 1316 | UTM_WGS84_35S | -60 | 225 | 225.20 |
| KKDD017 | DD | Kabikupa | 349398 | 8635148 | 1318 | UTM_WGS84_35S | -60 | 225 | 200.60 |
| KKDD018 | DD | Kabikupa | 348664 | 8635814 | 1310 | UTM_WGS84_35S | -70 | 220 | 197.70 |
| KKDD019 | DD | Kabikupa | 348537 | 8635645 | 1304 | UTM_WGS84_35S | -70 | 220 | 150.90 |
| KKMT001 | DD | Kabikupa | 348748 | 8635607 | 1312 | UTM_WGS84_35S | -60 | 220 | 150.00 |
| MBD00RC001 | RCD | Nyungu Central | 339080 | 8630422 | 1318 | UTM_WGS84_35S | -60 | 90 | 228.00 |
| MBD00RC002 | RCD | Nyungu Central | 339167 | 8630397 | 1315 | UTM_WGS84_35S | -60 | 90 | 180.00 |
| MBD00RC003 | RCD | Nyungu Central | 339319 | 8630401 | 1310 | UTM_WGS84_35S | -60 | 90 | 200.00 |
| MBD00RC004 | RCD | Nyungu Central | 339075 | 8629994 | 1313 | UTM_WGS84_35S | -60 | 90 | 252.00 |
| MBD00RC005 | RCD | Nyungu Central | 339143 | 8630059 | 1312 | UTM_WGS84_35S | -60 | 90 | 200.00 |
| MBD00RC006 | RCD | Nyungu Central | 339295 | 8630062 | 1307 | UTM_WGS84_35S | -60 | 90 | 156.00 |
| MBD00RC007 | RCD | Nyungu Central | 338795 | 8629685 | 1315 | UTM_WGS84_35S | -60 | 90 | 234.00 |
| MBD00RC008 | RCD | Nyungu Central | 339048 | 8629652 | 1310 | UTM_WGS84_35S | -60 | 90 | 196.00 |
| MBD00RC009 | RCD | Nyungu Central | 339201 | 8629665 | 1308 | UTM_WGS84_35S | -60 | 90 | 150.00 |
| MBD00RC010 | RCD | Nyungu Central | 339354 | 8629672 | 1304 | UTM_WGS84_35S | -60 | 90 | 125.00 |
| MBD00RC011 | RCD | Nyungu Central | 339625 | 8629650 | 1310 | UTM_WGS84_35S | -60 | 90 | 100.00 |
| MBD01RC001 | RCD | Nyungu Central | 339161 | 8629474 | 1307 | UTM_WGS84_35S | -60 | 93 | 228.00 |
| MBD01RC002 | RCD | Nyungu Central | 339136 | 8629860 | 1310 | UTM_WGS84_35S | -60 | 90 | 200.00 |
| MBD01RC003 | RCD | Nyungu Central | 339342 | 8630264 | 1308 | UTM_WGS84_35S | -60 | 93 | 194.65 |
| MBD01RC004 | RCD | Nyungu Central | 339198 | 8630256 | 1312 | UTM_WGS84_35S | -60 | 93 | 252.00 |
| MBD01RC005 | RCD | Nyungu Central | 339222 | 8630803 | 1317 | UTM_WGS84_35S | -90 | 0 | 270.00 |
| MBD01RC006 | RCD | Nyungu Central | 339347 | 8630814 | 1314 | UTM_WGS84_35S | -90 | 0 | 200.00 |
| MBD01RC007 | RCD | Nyungu Central | 339438 | 8631238 | 1328 | UTM_WGS84_35S | -90 | 0 | 200.00 |
| MBD01RC008 | RCD | Nyungu Central | 339240 | 8631238 | 1333 | UTM_WGS84_35S | -90 | 0 | 130.00 |
| MBD01RC009 | RCD | Nyungu Central | 338646 | 8630834 | 1342 | UTM_WGS84_35S | -90 | 0 | 220.00 |
| MM296 | RCD | Nyungu Central | 339090 | 8630290 | 1316 | UTM_WGS84_35S | -90 | 0 | 551.70 |
| MWDD001 | DD | West Mwombezhi | 341600 | 8642850 | 1285 | UTM_WGS84_35S | -70 | 90 | 299.80 |
| MWDD002 | DD | West Mwombezhi | 341750 | 8642700 | 1285 | UTM_WGS84_35S | -70 | 90 | 247.90 |
| MWDD003 | DD | West Mwombezhi | 342173 | 8643037 | 1278 | UTM_WGS84_35S | -70 | 90 | 215.30 |
| MWDD004 | DD | West Mwombezhi | 342324 | 8643167 | 1283 | UTM_WGS84_35S | -70 | 110 | 149.30 |
| MWDD005 | DD | West Mwombezhi | 342345 | 8643374 | 1287 | UTM_WGS84_35S | -70 | 110 | 149.20 |
| MWDD006 | DD | West Mwombezhi | 342515 | 8643698 | 1292 | UTM_WGS84_35S | -70 | 110 | 150.60 |
==> picture [181 x 38] intentionally omitted <==
| Hole_ID | Drill Type | Deposit | DH_East | DH_North | DH_RL | Datum | DH_Dip | DH_Azimuth | DH_Depth |
|---|---|---|---|---|---|---|---|---|---|
| MWDD007 | DD | West Mwombezhi | 341755 | 8642850 | 1280 | UTM_WGS84_35S | -70 | 90 | 200.40 |
| MWDD008 | DD | West Mwombezhi | 341621 | 8643164 | 1295 | UTM_WGS84_35S | -70 | 90 | 250.00 |
| MWDD009 | DD | West Mwombezhi | 341925 | 8643165 | 1280 | UTM_WGS84_35S | -70 | 100 | 175.00 |
| MWDD010 | DD | West Mwombezhi | 342125 | 8643165 | 1285 | UTM_WGS84_35S | -70 | 100 | 150.20 |
| MWDD011 | DD | West Mwombezhi | 342125 | 8643565 | 1280 | UTM_WGS84_35S | -70 | 100 | 150.60 |
| NCDD001 | DD | Nyungu Central | 339199 | 8629849 | 1308 | UTM_WGS84_35S | -70 | 90 | 172.20 |
| NCDD002 | DD | Nyungu Central | 339300 | 8629851 | 1306 | UTM_WGS84_35S | -70 | 90 | 201.70 |
| NCDD003 | DD | Nyungu Central | 339048 | 8630097 | 1315 | UTM_WGS84_35S | -70 | 90 | 289.40 |
| NCDD004 | DD | Nyungu Central | 338944 | 8630393 | 1321 | UTM_WGS84_35S | -70 | 90 | 523.00 |
| NCDD005 | DD | Nyungu Central | 339141 | 8629594 | 1307 | UTM_WGS84_35S | -70 | 90 | 177.00 |
| NCDD006 | DD | Nyungu Central | 339245 | 8629597 | 1305 | UTM_WGS84_35S | -70 | 90 | 188.00 |
| NCDD007 | DD | Nyungu Central | 338976 | 8630274 | 1319 | UTM_WGS84_35S | -70 | 90 | 500.00 |
| NCDD008 | DD | Nyungu Central | 339000 | 8629974 | 1310 | UTM_WGS84_35S | -70 | 90 | 406.90 |
| NCDD009 | DD | Nyungu Central | 339125 | 8630650 | 1320 | UTM_WGS84_35S | -70 | 90 | 475.00 |
| NCDD010 | DD | Nyungu Central | 338910 | 8630050 | 1315 | UTM_WGS84_35S | -70 | 90 | 380.00 |
| NCDD011 | DD | Nyungu Central | 339175 | 8360900 | 1315 | UTM_WGS84_35S | -70 | 90 | 400.90 |
| NCDD012 | DD | Nyungu Central | 338850 | 8629970 | 1315 | UTM_WGS84_35S | -70 | 90 | 361.90 |
| NCDD013 | DD | Nyungu Central | 338300 | 8630400 | 1330 | UTM_WGS84_35S | -60 | 90 | 770.00 |
| NCDD014 | DD | Nyungu Central | 339200 | 8631150 | 1325 | UTM_WGS84_35S | -70 | 90 | 424.90 |
| NCDD015 | DD | Nyungu Central | 339000 | 8629755 | 1310 | UTM_WGS84_35S | -70 | 90 | 250.84 |
| NCDD016 | DD | Nyungu Central | 338845 | 8629755 | 1314 | UTM_WGS84_35S | -70 | 90 | 284.00 |
| NCDD017 | DD | Nyungu Central | 339000 | 8629595 | 1310 | UTM_WGS84_35S | -70 | 90 | 121.90 |
| NCDD018 | DD | Nyungu Central | 339000 | 8629450 | 1309 | UTM_WGS84_35S | -70 | 90 | 214.90 |
| NCDD019 | DD | Nyungu Central | 339000 | 8629325 | 1308 | UTM_WGS84_35S | -70 | 90 | 259.90 |
| NCDD020 | DD | Nyungu Central | 338780 | 8629655 | 1309 | UTM_WGS84_35S | -70 | 90 | 275.00 |
| NCDD021 | DD | Nyungu Central | 338940 | 8629655 | 1309 | UTM_WGS84_35S | -70 | 90 | 175.90 |
| NCDD022 | DD | Nyungu Central | 338925 | 8629850 | 1309 | UTM_WGS84_35S | -70 | 90 | 275.00 |
| NCDD023 | DD | Nyungu Central | 338850 | 8630145 | 1309 | UTM_WGS84_35S | -70 | 90 | 425.00 |
| NCMT001 | DD | Nyungu Central | 339098 | 8629969 | 1312 | UTM_WGS84_35S | -90 | 0 | 242.00 |
| NCMT002 | DD | Nyungu Central | 339064 | 8630394 | 1315 | UTM_WGS84_35S | -70 | 82 | 443.00 |
| NCRD001 | RCD | Nyungu Central | 339299 | 8630197 | 1309 | UTM_WGS84_35S | -70 | 90 | 250.40 |
| NCRD002 | RCD | Nyungu Central | 339340 | 8629898 | 1305 | UTM_WGS84_35S | -70 | 90 | 180.50 |
| NCRD003 | RCD | Nyungu Central | 339268 | 8630396 | 1312 | UTM_WGS84_35S | -70 | 90 | 234.10 |
| NCRD004A | RCD | Nyungu Central | 338966 | 8630197 | 1318 | UTM_WGS84_35S | -70 | 90 | 72.00 |
| NCRD004R | RCD | Nyungu Central | 338960 | 8630197 | 1318 | UTM_WGS84_35S | -70 | 90 | 431.00 |
| NCRD005 | RCD | Nyungu Central | 339123 | 8630502 | 1318 | UTM_WGS84_35S | -70 | 90 | 401.00 |
| NCRD006 | RCD | Nyungu Central | 339221 | 8630098 | 1310 | UTM_WGS84_35S | -70 | 90 | 100.00 |
| NCRD007 | RCD | Nyungu Central | 339049 | 8630197 | 1316 | UTM_WGS84_35S | -70 | 90 | 385.60 |
| NCRD008 | RCD | Nyungu Central | 339219 | 8630049 | 1310 | UTM_WGS84_35S | -70 | 90 | 183.00 |
| NCRD009 | RCD | Nyungu Central | 338950 | 8630096 | 1317 | UTM_WGS84_35S | -70 | 90 | 405.40 |
| NCRD010 | RCD | Nyungu Central | 339000 | 8630146 | 1317 | UTM_WGS84_35S | -70 | 90 | 450.10 |
| NCRD011 | RCD | Nyungu Central | 339296 | 8629748 | 1305 | UTM_WGS84_35S | -70 | 90 | 182.00 |
| NCRD012 | RCD | Nyungu Central | 339251 | 8630246 | 1311 | UTM_WGS84_35S | -70 | 90 | 310.00 |
| NCRD013 | RCD | Nyungu Central | 339298 | 8630253 | 1309 | UTM_WGS84_35S | -70 | 90 | 42.40 |
| NCRD014 | RCD | Nyungu Central | 338898 | 8629745 | 1313 | UTM_WGS84_35S | -70 | 90 | 69.00 |
| NCRD015 | RCD | Nyungu Central | 338799 | 8629747 | 1315 | UTM_WGS84_35S | -70 | 90 | 55.00 |
| NCRD016 | RCD | Nyungu Central | 339099 | 8629594 | 1308 | UTM_WGS84_35S | -70 | 90 | 80.00 |
| NCRD017 | RCD | Nyungu Central | 339144 | 8629594 | 1307 | UTM_WGS84_35S | -70 | 90 | 55.00 |
| NCRD018 | RCD | Nyungu Central | 339203 | 8629596 | 1306 | UTM_WGS84_35S | -70 | 90 | 81.00 |
| NCRD019 | RCD | Nyungu Central | 339245 | 8629597 | 1305 | UTM_WGS84_35S | -70 | 90 | 49.00 |
| NCRD019R | RCD | Nyungu Central | 339256 | 8629598 | 1305 | UTM_WGS84_35S | -70 | 90 | 20.00 |
| NCRD020 | RCD | Nyungu Central | 339300 | 8629597 | 1304 | UTM_WGS84_35S | -70 | 90 | 73.00 |
| NCRD021 | RCD | Nyungu Central | 339241 | 8629949 | 1309 | UTM_WGS84_35S | -70 | 90 | 81.00 |
| NCRD022 | RCD | Nyungu Central | 339218 | 8629975 | 1310 | UTM_WGS84_35S | -70 | 90 | 183.00 |
| NCRD023 | RCD | Nyungu Central | 338920 | 8630496 | 1323 | UTM_WGS84_35S | -70 | 90 | 587.00 |
| NCRD024 | RCD | Nyungu Central | 339304 | 8630297 | 1310 | UTM_WGS84_35S | -70 | 90 | 57.00 |
| NCRD025 | RCD | Nyungu Central | 339200 | 8630277 | 1313 | UTM_WGS84_35S | -70 | 90 | 97.00 |
| NCRD026 | RCD | Nyungu Central | 338817 | 8630445 | 1325 | UTM_WGS84_35S | -70 | 90 | 680.00 |
| NCRD027 | RCD | Nyungu Central | 338997 | 8630050 | 1315 | UTM_WGS84_35S | -70 | 90 | 106.00 |
| NSDD001 | DD | Nyungu South | 338370 | 8626370 | 1290 | UTM_WGS84_35S | -70 | 270 | 250.90 |
==> picture [181 x 38] intentionally omitted <==
| Hole_ID | Drill Type | Deposit | DH_East | DH_North | DH_RL | Datum | DH_Dip | DH_Azimuth | DH_Depth |
|---|---|---|---|---|---|---|---|---|---|
| NSDD002 | DD | Nyungu South | 338370 | 8626570 | 1290 | UTM_WGS84_35S | -70 | 270 | 250.90 |
| NSDD003 | DD | Nyungu South | 338310 | 8626060 | 1282 | UTM_WGS84_35S | -70 | 270 | 250.90 |
| NSDD004 | DD | Nyungu South | 338480 | 8626770 | 1286 | UTM_WGS84_35S | -70 | 270 | 250.00 |
| NSDD005 | DD | Nyungu South | 338331 | 8626199 | 1290 | UTM_WGS84_35S | -70 | 270 | 247.20 |
| NYDD047 | DD | Nyungu North | 338340 | 8630800 | 1349 | UTM_WGS84_35S | -70 | 93 | 300.00 |
| NYDD048 | DD | Nyungu North | 339120 | 8632800 | 1306 | UTM_WGS84_35S | -70 | 93 | 257.80 |
| NYDD049 | DD | Nyungu Central | 339482 | 8630000 | 1302 | UTM_WGS84_35S | -60 | 93 | 254.80 |
| NYDD050 | DD | Nyungu North | 338845 | 8630800 | 1341 | UTM_WGS84_35S | -70 | 93 | 263.90 |
| NYDD051 | DD | Nyungu East | 339750 | 8629900 | 1295 | UTM_WGS84_35S | -60 | 93 | 248.80 |
| NYDD052 | DD | Nyungu Central | 339160 | 8630142 | 1313 | UTM_WGS84_35S | -70 | 90 | 216.00 |
| NYDD053 | DD | Nyungu Central | 339164 | 8630087 | 1312 | UTM_WGS84_35S | -70 | 90 | 287.00 |
| NYDD054 | DD | Nyungu Central | 339146 | 8630192 | 1314 | UTM_WGS84_35S | -65 | 93 | 299.00 |
| NYDD055 | DD | Nyungu Central | 339150 | 8630240 | 1314 | UTM_WGS84_35S | -65 | 90 | 380.00 |
| NYDD056 | DD | Nyungu Central | 339148 | 8630293 | 1314 | UTM_WGS84_35S | -65 | 90 | 383.00 |
| NYDD057 | DD | Nyungu Central | 339080 | 8630394 | 1318 | UTM_WGS84_35S | -65 | 90 | 400.90 |
| NYDD058 | DD | Nyungu Central | 339069 | 8629971 | 1312 | UTM_WGS84_35S | -70 | 90 | 231.00 |
| NYDD059 | DD | Nyungu Central | 339123 | 8629971 | 1311 | UTM_WGS84_35S | -70 | 90 | 198.00 |
| NYDD060 | DD | Nyungu Central | 339151 | 8629655 | 1308 | UTM_WGS84_35S | -60 | 90 | 234.00 |
| NYDD061 | DD | Nyungu Central | 339046 | 8629901 | 1312 | UTM_WGS84_35S | -65 | 90 | 234.00 |
| NYDD062 | DD | Nyungu Central | 339022 | 8630341 | 1318 | UTM_WGS84_35S | -60 | 90 | 426.00 |
| NYDD063 | DD | Nyungu Central | 339142 | 8629761 | 1309 | UTM_WGS84_35S | -70 | 90 | 198.00 |
| NYDD064 | DD | Nyungu Central | 339027 | 8630497 | 1320 | UTM_WGS84_35S | -65 | 90 | 460.50 |
| NYRC031 | RC | Nyungu Central | 339120 | 8630222 | 1314 | UTM_WGS84_35S | -70 | 90 | 117.00 |
| NYRC032 | RC | Nyungu Central | 339061 | 8630776 | 1321 | UTM_WGS84_35S | -70 | 90 | 133.00 |
| NYRC033 | RC | Nyungu Central | 338979 | 8630775 | 1323 | UTM_WGS84_35S | -70 | 90 | 85.00 |
| NYRC034 | RC | Nyungu Central | 339820 | 8635601 | 1268 | UTM_WGS84_35S | -70 | 90 | 100.00 |
| NYRC035 | RC | Nyungu Central | 339742 | 8635601 | 1272 | UTM_WGS84_35S | -70 | 90 | 127.00 |
| NYRC036 | RC | Nyungu Central | 339540 | 8633199 | 1294 | UTM_WGS84_35S | -70 | 90 | 91.00 |
| NYRC037 | RC | Nyungu Central | 339621 | 8633203 | 1289 | UTM_WGS84_35S | -70 | 90 | 91.00 |
| NYRC038 | RC | Nyungu East | 339893 | 8629932 | 1291 | UTM_WGS84_35S | -70 | 90 | 120.00 |
| NYRC039 | RC | Nyungu East | 339940 | 8629932 | 1290 | UTM_WGS84_35S | -70 | 90 | 110.00 |
| NYRC040 | RC | Nyungu East | 339991 | 8629931 | 1288 | UTM_WGS84_35S | -70 | 90 | 98.00 |
| NYRC041 | RC | Nyungu East | 340041 | 8629930 | 1287 | UTM_WGS84_35S | -70 | 90 | 108.00 |
| NYRC042 | RC | Nyungu East | 339839 | 8629833 | 1292 | UTM_WGS84_35S | -70 | 90 | 48.00 |
| NYRC043 | RC | Nyungu East | 339892 | 8629832 | 1291 | UTM_WGS84_35S | -70 | 90 | 70.00 |
| NYRC044 | RC | Nyungu East | 339918 | 8630231 | 1289 | UTM_WGS84_35S | -70 | 90 | 24.00 |
| NYRD024 | RCD | Nyungu South | 338217 | 8626373 | 1290 | UTM_WGS84_35S | -70 | 90 | 216.00 |
| NYRD025 | RCD | Nyungu South | 338144 | 8626377 | 1292 | UTM_WGS84_35S | -70 | 90 | 186.15 |
| NYRD026 | RCD | Nyungu South | 338061 | 8626374 | 1295 | UTM_WGS84_35S | -70 | 90 | 113.65 |
| NYRD027 | RCD | Nyungu South | 338298 | 8626775 | 1292 | UTM_WGS84_35S | -70 | 90 | 198.65 |
| NYRD028 | RCD | Nyungu South | 338220 | 8626776 | 1294 | UTM_WGS84_35S | -70 | 90 | 201.15 |
| NYRD029 | RCD | Nyungu South | 338142 | 8626774 | 1296 | UTM_WGS84_35S | -70 | 90 | 149.65 |
| NYRD030 | RCD | Nyungu Central | 339016 | 8629836 | 1312 | UTM_WGS84_35S | -70 | 90 | 200.65 |
| NYRD031 | RCD | Nyungu Central | 339120 | 8630222 | 1314 | UTM_WGS84_35S | -70 | 90 | 305.65 |
| NYRD038 | RCD | Nyungu Central | 339139 | 8630775 | 1319 | UTM_WGS84_35S | -70 | 87 | 300.00 |
| NYRD039 | RCD | Nyungu South | 338216 | 8626578 | 1292 | UTM_WGS84_35S | -70 | 90 | 216.45 |
| NYRD040 | RCD | Nyungu South | 338134 | 8626578 | 1294 | UTM_WGS84_35S | -70 | 90 | 159.55 |
| NYRD041 | RCD | Nyungu South | 338096 | 8626178 | 1291 | UTM_WGS84_35S | -70 | 90 | 116.46 |
| NYRD042 | RCD | Nyungu South | 338174 | 8626178 | 1289 | UTM_WGS84_35S | -70 | 90 | 170.55 |
| NYRD043 | RCD | Nyungu Central | 339200 | 8630738 | 1317 | UTM_WGS84_35S | -70 | 93 | 242.65 |
| NYRD044 | RCD | Nyungu Central | 339180 | 8630578 | 1316 | UTM_WGS84_35S | -70 | 93 | 239.75 |
| NYRD045 | RCD | Nyungu Central | 339095 | 8630273 | 1316 | UTM_WGS84_35S | -70 | 93 | 302.55 |
| NYRD046 | RCD | Nyungu Central | 339113 | 8630080 | 1313 | UTM_WGS84_35S | -70 | 90 | 290.25 |
| NYU1 | DD | Nyungu Central | 338960 | 8630290 | 1320 | UTM_WGS84_35S | -90 | 0 | 300.00 |
| NYU11RD001 | RCD | Nyungu Central | 339086 | 8630391 | 1317 | UTM_WGS84_35S | -90 | 0 | 308.50 |
| NYU11RD002 | RCD | Nyungu Central | 339233 | 8630395 | 1313 | UTM_WGS84_35S | -90 | 0 | 299.81 |
| NYU11RD003 | RCD | Nyungu Central | 339377 | 8630392 | 1308 | UTM_WGS84_35S | -90 | 0 | 194.65 |
| NYU11RD004 | RCD | Nyungu Central | 338933 | 8630394 | 1322 | UTM_WGS84_35S | -90 | 0 | 296.50 |
| NYU11RD005 | RCD | Nyungu Central | 339122 | 8629658 | 1308 | UTM_WGS84_35S | -90 | 0 | 185.60 |
| NYU11RD006 | RCD | Nyungu Central | 338970 | 8629656 | 1311 | UTM_WGS84_35S | -60 | 90 | 149.20 |
==> picture [181 x 38] intentionally omitted <==
==> picture [452 x 224] intentionally omitted <==
----- Start of picture text -----
Hole_ID Drill Type Deposit DH_East DH_North DH_RL Datum DH_Dip DH_Azimuth DH_Depth
NYU11RD007 RCD Nyungu Central 338724 8629657 1316 UTM_WGS84_35S -60 90 70.00
NYU11RD008 RCD Nyungu Central 339244 8629657 1306 UTM_WGS84_35S -60 90 191.20
NYU11RD009 RCD Nyungu Central 339278 8630002 1308 UTM_WGS84_35S -60 90 200.30
NYU11RD010 RCD Nyungu Central 339123 8629999 1312 UTM_WGS84_35S -60 90 305.14
NYU11RD011 RCD Nyungu Central 338977 8629993 1315 UTM_WGS84_35S -60 90 300.10
NYU11RD012 RCD Nyungu Central 338545 8630024 1336 UTM_WGS84_35S -60 90 121.50
NYU11RD013 RCD Nyungu Central 339275 8630795 1315 UTM_WGS84_35S -60 90 116.20
NYU11RD014 RCD Nyungu Central 338736 8630826 1343 UTM_WGS84_35S -60 90 200.20
NYU11RD015 RCD Nyungu Central 338450 8630820 1345 UTM_WGS84_35S -60 90 82.00
NYU11RD016 RCD Nyungu Central 339434 8631226 1329 UTM_WGS84_35S -60 90 180.30
NYU11RD017 RCD Nyungu Central 338699 8631218 1339 UTM_WGS84_35S -60 90 53.00
NYU11RD018 RCD Nyungu Central 338494 8631224 1342 UTM_WGS84_35S -60 90 76.00
NYU11RD019 RCD Nyungu Central 338600 8630822 1342 UTM_WGS84_35S -60 90 179.30
NYU11RD020 RCD Nyungu Central 338405 8630420 1332 UTM_WGS84_35S -60 90 150.30
NYU11RD021 RCD Nyungu Central 339123 8629865 1310 UTM_WGS84_35S -70 90 297.89
NYU11RD022 RCD Nyungu Central 339238 8630193 1311 UTM_WGS84_35S -90 0 180.40
NYU11RD023 RCD Nyungu Central 339090 8630203 1315 UTM_WGS84_35S -90 0 67.00
NYU2 DD Nyungu Central 338960 8630030 1316 UTM_WGS84_35S -90 0 350.50
WMDD001 DD West Mwombezhi 341940 8643000 1278 UTM_WGS84_35S -60 93 252.00
WMDD002 DD West Mwombezhi 341760 8643000 1280 UTM_WGS84_35S -60 93 302.80
WMDD003 DD West Mwombezhi 341630 8643000 1285 UTM_WGS84_35S -70 93 287.90
WMDD006 DD West Mwombezhi 341640 8643700 1298 UTM_WGS84_35S -60 93 277.30
----- End of picture text -----
APPENDIX 2 : Formula for Copper Equivalent (CuEq%) calculations
Metal equivalents have been calculated at a copper price of US$11,500/tonne, gold price of US$3,500/ounce and cobalt price of US$40,000/tonne.
Prospect Resources has taken a conservative approach to its commodity pricing assumptions and utilised Canaccord Genuity (CG) commodity price forecasts for copper and cobalt as stated in its December 2025 commodity price deck (https://canaccordgenuity.bluematrix.com , to arrive at the figures used in the CuEq% calculation.
Gold spot price was reviewed (https://www.kitco.com/charts/gold) and a conservative long term gold pricing was arrived at to support the figure used in the CuEq% calculation.
Copper metallurgical recovery is 90% and cobalt metallurgical recovery is 50% based on metallurgical test work undertaken by Prospect Resources Ltd (refer PSC ASX releases dated 19 May 2025 and 17 July 2025). Gold metallurgical recovery is conservatively estimated at 70% based on limited testing having been completed to date.
The estimated recoveries are consistent with regional benchmarks for similar low-grade copper deposits in Zambia, notably neighbouring operations managed by First Quantum Minerals and Barrick, who mine and process similar deposits to those defined at the Mumbezhi Project.
Copper equivalent was calculated based on the formula: CuEq% = Cu% + (Au grade x ((Au Price/Cu Price) x (Au recovery /Cu recovery)) + Co grade x ((Co price/Cu price) x (Co recovery/Cu recovery)).
In Prospect Resources’ opinion, the elements included in the copper metal equivalent calculation have reasonable potential to be recovered and sold.
==> picture [181 x 38] intentionally omitted <==
JORC Code, 2012 Edition – Table 1
Section 1 Sampling Techniques and Data (Criteria in this section apply to all succeeding sections.)
| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| Sampling | •Nature and quality of sampling (eg | • | Prospect Resources’ Mumbezhi |
| techniques | cut channels, random chips, or | Mineral Resource definition drilling | |
| specific specialised industry | programmes were aimed at verifying | ||
| standard measurement tools | parts of the existing Nyungu Central | ||
| appropriate to the minerals under | model, and testing the potential for | ||
| investigation, such as down hole | eastern oxide-transition up-dip, |
||
| gamma sondes, or handheld XRF | northern down plunge, western | ||
| instruments, etc). These examples | down-dip sulphide, and southern up- | ||
| should not be taken as limiting the | plunge oxide-transition extensions. | ||
| broad meaning of sampling. | • | At Kabikupa, drilling was completed | |
| •Include reference to measures taken | to test historical drilling intersections | ||
| to ensure sample representivity and | and then extend those both up-dip, | ||
| the appropriate calibration of any | down dip and along strike to the | ||
| measurement tools or systems used. | southeast and northwest. | ||
| •Aspects of the determination of | • | In total, 22,283m of DD (93 holes) | |
| mineralisation that are Material to | and 2,025m RC (29 holes) have | ||
| the Public Report. | been completed at Nyungu Central, | ||
| •In cases where ‘industry standard’ | Kabikupa, West Mwombezhi, |
||
| work has been done this would be | Nyungu North and Nyungu South by | ||
| relatively simple (eg ‘reverse | Prospect in 2025 (Phase 1) and | ||
| circulation drilling was used to obtain | 2026 (Phase 2). | ||
| 1 m samples from which 3 kg was | • | Cu–Co results are available for the | |
| pulverised to produce a 30 g charge | majority of holes drilled during | ||
| for fire assay’). In other cases more | Phase 2; being 4,443 out of 6,452 | ||
| explanation may be required, such | core samples at the date of this | ||
| as where there is coarse gold that | release. | ||
| has inherent sampling problems. | • | Gold re-assay results are also | |
| Unusual commodities or | available for 1,604 samples for | ||
| mineralisation types (eg submarine | Nyungu Central (Phase 2). | ||
| nodules) may warrant disclosure of | • | Drill holes were completed to sample | |
| detailed information. | across the copper mineralisation as | ||
| close to perpendicular as possible. | |||
| • | Samples were either collected on | ||
| 1m spacing or separated at defined | |||
| lithology boundaries. | |||
| • | Diamond drilling (DD) at Nyungu | ||
| Central was completed using two | |||
| track mounted LF90s (driven by a | |||
| Cummings 6.7L) were operated by | |||
| Ox Drilling - drill core size was PQ. | |||
| Initially, drilling through the |
|||
| transitional zone normally 60-80m | |||
| depth, thereafter NQ size was used. | |||
| • | DD was completed with a Leos | ||
| Drilling Altas Copco CS14 wireline |
==> picture [181 x 38] intentionally omitted <==
| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| with standard PQ and HQ core size | |||
| at Kabikupa and West Mwombezhi. | |||
| • | Handheld pXRF measurements |
||
| were taken on RC samples, using an | |||
| Innovx Vanta C with composite | |||
| sampling conducted on non- |
|||
| mineralised material (cut-off grade | |||
| <0.1% Cu) and single metre |
|||
| sampling of mineralised material | |||
| (cut-off grade >0.1% Cu). These | |||
| composited and single metre |
|||
| samples were then dispatched to the | |||
| certified laboratory, as required. | |||
| • | Half drill core was sampled based | ||
| on observed copper mineralisation | |||
| and intervals of one metre or less | |||
| determined by geological contacts | |||
| within mineralised units. | |||
| • | Drill core cut at a consistent distance | ||
| relative to solid orientation line or | |||
| dashed mark-up line. | |||
| • | Diamond drill core samples were | ||
| dispatched in batches to ALS Ndola, | |||
| for preparation and blind standard | |||
| insertion. Samples were dried, |
|||
| crushed to 85% (-5mm), spilt up to | |||
| 1.2kg, pulverised to 85% (-75µm). | |||
| • | The pulps were then collected by | ||
| courier and delivered to SGS |
|||
| Kalulushi for analysis. | |||
| • | AAS42S analysis conducted was | ||
| standard 4-acid digestion |
|||
| (HNO3/HClO4/HCl/HF) using a 0.4g | |||
| pulp. Digestion temperature is set at | |||
| 200ºC for 45 minutes, with AAS finish | |||
| on bulked up solution to produce | |||
| Total Cu and Co analyses. | |||
| • | AAS72C “single acid” (5% H2SO4+ | ||
| Na2SO3) cold leach using a 0.5g | |||
| pulp, followed by AAS gives Acid | |||
| Soluble Cu, Co. | |||
| • | A total of 8,785.7m DD in 36 holes | ||
| was drilled at Nyungu Central and | |||
| West Mwombezhi. | |||
| • | Samples from zones defined as lying | ||
| within the Cu-Co mineralisation | |||
| were dispatched for multi-element |
==> picture [181 x 38] intentionally omitted <==
| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| assay at ALS-Johannesburg by the | |||
| ICP-ME61 method. | |||
| • | Gold fire assays were completed | ||
| retrospectively on mineralised Cu | |||
| intersections from Nyungu Central at | |||
| SGS (Kalulushi). | |||
| Drilling | •Drill type (eg core, reverse | • | In Phase 2, at Nyungu Central, a total |
| techniques | circulation, open-hole hammer, | of 6570.7m diamond drilling in 24 | |
| rotary air blast, auger, Bangka, | holes was conducted by Ox Drilling. | ||
| sonic, etc) and details (eg core | At West Mwombezhi, 12 holes were | ||
| diameter, triple or standard tube, | drilled for 2,217.6m. Whilst at |
||
| depth of diamond tails, face- | Kabikupa 3,348.5m were drilled in 15 | ||
| sampling bit or other type, whether | holes and 1,249.9m in 5 holes for | ||
| core is oriented and if so, by what | Nyungu South. | ||
| method, etc). | • | Orientation determined by Axis |
|
| Mining orientation instrument. Down | |||
| hole surveying was completed |
|||
| initially by Board Longyear TruShot | |||
| Multishot EMS, superseded (after | |||
| validatory comparison) by an Axis | |||
| Mining Technology ChampNavigator | |||
| North-Seeking Continuous Gyro. | |||
| Drill sample | •Method of recording and assessing | • | Initial geotechnical logging recording |
| recovery | core and chip sample recoveries and | core recoveries and RQD, with | |
| results assessed. | recoveries exceeding 95%. | ||
| •Measures taken to maximise sample | • |
For RC chips, samples are weighed | |
| recovery and ensure representative | and weights recorded to estimate | ||
| nature of the samples. | recovery. | ||
| •Whether a relationship exists | • | No observed relationship between | |
| between sample recovery and grade | core loss and grades. | ||
| and whether sample bias may have | |||
| occurred due to preferential | |||
| loss/gain of fine/coarse material. | |||
| Logging | •Whether core and chip samples | • | For Mumbezhi, logging of drill core |
| have been geologically and | incorporated the following details: | ||
| geotechnically logged to a level of | from-to depths, colour and hue, | ||
| detail to support appropriate Mineral | stratigraphy, weathering, texture, |
||
| Resource estimation, mining studies | structure, structure orientation; type, | ||
| and metallurgical studies. | mode and intensity of alteration and | ||
| •Whether logging is qualitative or | ore minerals, zone type for |
||
| quantitative in nature. Core (or | mineralised rock (oxide, transition, | ||
| costean, channel, etc) photography. | sulphide), geological notes and % | ||
| •The total length and percentage of | estimate of ore minerals present. | ||
| the relevant intersections logged. | • | Logging of RC chips was conducted | |
| on a metre-by-metre basis whilst for | |||
| the diamond drill core, criteria for unit | |||
| boundaries were based on |
|||
| contrasting lithologies, absence or | |||
| presence of mineralisation; sudden |
==> picture [181 x 38] intentionally omitted <==
| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| changes of weathering–usually | |||
| associated with structures, plus |
|||
| changes in major rock forming or | |||
| alteration minerals such as the | |||
| presence of large garnets. A guide to | |||
| core logging was written to provide | |||
| uniformity of interpretations and | |||
| consistent data entry. | |||
| • | 100% of all drilling was geologically | ||
| logged, using standard Prospect | |||
| Resources codes. | |||
| • | All core was photographed wet and | ||
| dry, photographs digitally named and | |||
| organised. | |||
| Sub-sampling | •If core, whether cut or sawn and |
• | For Mumbezhi, all core cut with core |
| techniques | whether quarter, half or all core | saw. Half core sampled in |
|
| and sample | taken. | mineralised units; quarter core |
|
| preparation | •If non-core, whether riffled, tube | sampled in non-mineralised units. | |
| sampled, rotary split, etc and | • | High quality sampling procedures | |
| whether sampled wet or dry. | and appropriate sample preparation | ||
| •For all sample types, the nature, | techniques were followed. | ||
| quality, and appropriateness of the | • | Several standards (commercial |
|
| sample preparation technique. | certified reference material (CRM)) | ||
| •Quality control procedures adopted | were inserted at intervals of 1 in 20 in | ||
| for all sub-sampling stages to | rotation. Immediately following a | ||
| maximise representivity of samples. | standard, a blank was inserted. | ||
| •Measures taken to ensure that the | • | Sample size (approximately 2kg in | |
| sampling is representative of the in | mass) considered appropriate to the | ||
| situ material collected, including for | grain size of material being sampled. | ||
| instance results for field | • | Testing for gold focused initially on | |
| duplicate/second-half sampling. | three rock types; i) base of the | ||
| •Whether sample sizes are | transitional zone, ii) cross-cutting | ||
| appropriate to the grain size of the | younger veins and iii) zones of Cu-Co | ||
| material being sampled. | mineralisation. | ||
| Quality of | •The nature, quality and | • | For the Nyungu Central and |
| assay data | appropriateness of the assaying and | Kabikupa drilling, certified |
|
| and | laboratory procedures used and | laboratories (SGS and ALS) were | |
| laboratory | whether the technique is considered | used. The AAS techniques are | |
| tests | partial or total. | considered appropriate for the type of | |
| •For geophysical tools, | mineralisation being assayed. | ||
| spectrometers, handheld XRF | • | Several standards (commercial |
|
| instruments, etc, the parameters | certified reference material) were | ||
| used in determining the analysis | inserted at intervals of 1 in 20 in | ||
| including instrument make and | rotation. Immediately following a | ||
| model, reading times, calibrations | standard, a blank was inserted. | ||
| factors applied and their derivation, | QA/QC monitored on each batch and | ||
| etc. | re-analysis conducted where errors | ||
| •Nature of quality control procedures | exceeded set limits. The 15 CRMs | ||
| adopted (eg standards, blanks, | inserted were AMIS 0795 (0.40%Cu), | ||
| duplicates, external laboratory | AMIS 0622(3.33% Cu),AMIS 0623 |
==> picture [181 x 38] intentionally omitted <==
| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| checks) and whether acceptable | (3.1% Cu), AMIS 0873 (0.96% Cu), | ||
| levels of accuracy (ie lack of bias) | AMIS 0858 (2.94%Cu), AMIS 0842 | ||
| and precision have been | (1.05% Cu), AMIS 0847 (1.05% Cu), | ||
| established. | AMIS 0873 (0.67% Cu), AMIS 0795 | ||
| (0.34% Cu), AMIS 0830 (0.24% Cu), | |||
| AMIS 0844 (0.14% Cu), AMIS 0856 | |||
| (1.56% Cu), AMIS 0857 (0.96%), | |||
| AMIS 0247 (4.13% Cu), AMIS 0829 | |||
| (0.46% Cu), AMIS 0249 (0.37% Cu), | |||
| AMIS 0795 (0.35% Cu), AMIS 0858 | |||
| (2.92% Cu) & AMIS 0249 (0.37% | |||
| Cu). | |||
| • | 81 blanks were inserted and all | ||
| returned satisfactory to inconclusive | |||
| results. 250 of the different CRM | |||
| types lie within 2std deviations of the | |||
| theoretical values. The correlation | |||
| factor on the 181 fine and coarse | |||
| duplicates inserted was 99.6%. The | |||
| 3 samples that fell outside the | |||
| acceptance range of mean + 2 Std | |||
| dev., are all very low grade samples, | |||
| and the issue is not considered | |||
| material. | |||
| • | For gold assaying, certified |
||
| laboratories (SGS and ALS) were | |||
| used. The AAS techniques are | |||
| considered appropriate for the type | |||
| of 46 Au certified standards, CRMs | |||
| (Commercial Certified Reference |
|||
| Materials) produced by AMIS of | |||
| Johannesburg were inserted at |
|||
| intervals of 1 in 20 in rotation. | |||
| Immediately following a standard, a | |||
| blank was inserted. QA/QC |
|||
| monitored on each batch and re- | |||
| analysis conducted where errors | |||
| exceeded set limits. The ten different | |||
| CRMs inserted were AMIS 0881 | |||
| (5.25g/t Au), AMIS 0923 (1.22g/t Au) | |||
| AMIS 0622 (0.014g/t Au), AMIS 0623 | |||
| (0.014g/t Au), AMIS 0695 (0.093g/t | |||
| Au), AMIS 0696 (0.556g/t Au), AMIS | |||
| 0795 (0.046g/t Au), AMIS 0844 | |||
| (0.004g/t Au), AMIS 0845 (0.016g/t | |||
| Au) and AMIS 0695 (0.022g/t Au). | |||
| • | For the most recent gold re-assaying | ||
| of Phase 2 drilling samples all the | |||
| blanks produced satisfactorily low | |||
| results and all the CRM types lie | |||
| within 2 std deviations of the |
==> picture [181 x 38] intentionally omitted <==
| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| theoretical values. The correlation | |||
| factor on the 40 fine laboratory | |||
| duplicates is a creditable 76%. Four | |||
| of the results lay beyond acceptable | |||
| limits, and have been marked for | |||
| “blind” re-assay. It should be noted | |||
| however that these are all low | |||
| <0.16g/t Au sample assays. | |||
| • | In conclusion, the sample |
||
| preparation procedures at ALS and | |||
| the accuracy and precision of SGS | |||
| Kalulushi are adequate for purpose. | |||
| Verification of | •The verification of significant |
• | For Mumbezhi, all the significant |
| sampling and | intersections by either independent | intersections and the majority of drill | |
| assaying | or alternative company personnel. | core were inspected by numerous | |
| •The use of twinned holes. | geologists including Prospect’s Chief | ||
| •Documentation of primary data, data | Geologist and Competent Person. | ||
| entry procedures, data verification, | • | All the core from Argonaut’s 2011 | |
| data storage (physical and | and 2014 drilling is stored at Kitwe- | ||
| electronic) protocols. | based geological consultants, AMC. | ||
| •Discuss any adjustment to assay | • | All data has now been transferred to | |
| data. | Access Database and migrated to | ||
| Geospark. | |||
| • | No adjustments were made to any | ||
| current or historical data. If data could | |||
| not be validated to a reasonable level | |||
| of certainty, it was not used in any | |||
| resource estimations. | |||
| Location of | •Accuracy and quality of surveys | • | 63 of the historical drill collars were |
| data points | used to locate drill holes (collar and | located and surveyed using DGPS by | |
| down-hole surveys), trenches, mine | survey consultants, SurvBuild Ltd. | ||
| workings and other locations used in | Only eight of the historic holes were | ||
| Mineral Resource estimation. | not located. Holes from the Phase 1 | ||
| •Specification of the grid system | and Phase 2 work were initially | ||
| used. | located by handheld Garmin 62. | ||
| •Quality and adequacy of topographic | Once the programme was |
||
| control. | completed, the new collars were | ||
| surveyed by DGPS. The co-ordinate | |||
| system used is WGS UTM Zone 35S. | |||
| • | For 2024-25 Kabikupa holes, DGPS | ||
| pick-ups of collars have been |
|||
| undertaken and a detailed drone | |||
| topographic survey undertaken. | |||
| Data spacing | •Data spacing for reporting of | • | For Nyungu Central the original data |
| and | Exploration Results. | spacing was generally 200 metre | |
| distribution | •Whether the data spacing and | traverses with 160 metre drillhole | |
| distribution is sufficient to establish | spacing, some traverses have 80 | ||
| the degree of geological and grade | metre drillhole spacing. | ||
| continuity appropriate for the Mineral | • |
Additional drilling to a nominal 100 | |
| Resource and Ore Reserve | metre traverse by 80 metre drill |
==> picture [181 x 38] intentionally omitted <==
| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| estimation procedure(s) and | spacing has been estimated |
||
| classifications applied. | geostatistically as being sufficient to | ||
| •Whether sample compositing has | establish geological and grade |
||
| been applied. | continuity. | ||
| • | For Kabikupa, drill spacing is more | ||
| variable, with approx. 50m centres | |||
| per drill section and drill sections | |||
| between 100-200m spacing |
|||
| northwest to southeast. | |||
| • | Samples from within the mineralised | ||
| wireframes were used to conduct a | |||
| sample length analysis. The vast | |||
| majority of samples were 1m in | |||
| length. Standard mining software | |||
| was then used to extract fixed length | |||
| 1m down hole composites within the | |||
| intervals coded as mineralisation | |||
| intersections. | |||
| • | Current drill spacing and density for | ||
| Nyungu Central and Kabikupa is | |||
| considered sufficient to report to | |||
| JORC (2012) standard. | |||
| • | Prospect Resources’ Mineral |
||
| Resource drilling programmes were | |||
| focused on expanding the existing | |||
| resource footprint of Nyungu Central | |||
| to the north, south and west. Holes | |||
| were drilled to test the northern down | |||
| plunge, the eastern extent of the flat | |||
| lying oxides and the nature of the | |||
| mineralised system up plunge to the | |||
| south. | |||
| • | Two metallurgical holes NCMT001 | ||
| and NCMT002 were drilled in the | |||
| centre of the Nyungu Central deposit | |||
| for 685.0m. | |||
| • | At Kabikupa, the Phase 2 drill | ||
| programme was directed at testing | |||
| the down dip (NE), up-dip to sub- | |||
| outcrop (SW) and SE strike extension | |||
| of the ore body defined by the PSC | |||
| Phase 1 and historical 2015 Argonaut | |||
| work. The positive results of the | |||
| drilling corelate well with the PSC IP | |||
| anomalies, well defined termite hill | |||
| geochemical anomalies and |
|||
| occurrences of convincing geo- |
|||
| botanical indicators. | |||
| • | One metallurgical holes KKMT001 | ||
| was drilled at the northwest end of |
==> picture [181 x 38] intentionally omitted <==
| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| the Kabikupa deposit for 150.0m. | |||
| Orientation of | •Whether the orientation of sampling |
• | For Nyungu Central, the current |
| data in | achieves unbiased sampling of | drillholes were orientated to intercept | |
| relation to | possible structures and the extent to | normal to the strike of mineralisation | |
| geological | which this is known, considering the | and were inclined to the east, at -70°. | |
| structure | deposit type. | Mineralisation is interpreted to strike | |
| •If the relationship between the | 015° true, dip moderately to steeply | ||
| drilling orientation and the orientation | to the west and plunge moderately to | ||
| of key mineralised structures is | the north. | ||
| considered to have introduced a | • | Due to the dip attitude of the | |
| sampling bias, this should be | mineralisation, 70° inclined drillholes | ||
| assessed and reported if material. | do not intersect the mineralisation | ||
| completely perpendicularly. This is | |||
| not considered to have introduced | |||
| any significant bias. | |||
| • | Geological mapping was undertaken | ||
| at prospect scale to refine local | |||
| structural fabric and thus to drill | |||
| perpendicular to the interpreted |
|||
| deposit’s strike. | |||
| • | For Kabikupa, drill holes were | ||
| generally drilled -70º to the |
|||
| southwest, which is perpendicular to | |||
| the NW-SE strike of the deposit. | |||
| • | At West Mwombezhi, drill holes were | ||
| drilled -70º to the east which is | |||
| perpendicular to the N-S strike of the | |||
| deposit. | |||
| Sample | •The measures taken to ensure | • | For Nyungu Central and Kabikupa, all |
| security | sample security. | retained drill core are stored on Site, | |
| with historical drill samples in | |||
| secure sheds in Kitwe at the | |||
| geological contractor’s AMC’s |
|||
| facility. | |||
| • | Samples were collected and bagged | ||
| on site under supervision of the | |||
| geologist. They were then |
|||
| transported directly to the assay | |||
| laboratory using sample cages. Once | |||
| at the assay laboratory the samples | |||
| were received into the laboratory | |||
| storage compound before |
|||
| processing. | |||
| Audits or | •The results of any audits or reviews | • | A review was carried out in 2024 by |
| reviews | of sampling techniques and data. | ERM Consultants. This provided a | |
| series of recommendations, many of | |||
| which have been adopted. It did not | |||
| show any material issues with | |||
| sampling. | |||
| • | In addition, Copperbelt structural |
==> picture [181 x 38] intentionally omitted <==
| Criteria | JORC Code explanation | Commentary | |||
|---|---|---|---|---|---|
| specialist | Tect | Consultants | |||
| undertook | a | detailed |
structural |
||
| investigation of the Nyungu Central | |||||
| drill core in | February and December | ||||
| 2025. |
==> picture [181 x 38] intentionally omitted <==
| Section 2 | Reporting of Exploration Results | ||
|---|---|---|---|
| (Criteria listed in the preceding section also apply to this | section.) | ||
| Criteria | JORC Code explanation | Commentary | |
| Mineral | •Type, reference name/number, | • | The initial Large Scale Prospecting |
| tenement and | location and ownership including | Licence, 16121-HQ-LPL, for Mumbezhi, | |
| land tenure | agreements or material issues | (formerly Lumwana West) is located | |
| status | with third parties such as joint | approximately 95km west southwest of | |
| ventures, partnerships, | Solwezi, Zambia. The licence was due to | ||
| overriding royalties, native title | expire on 20/07/2018 and was |
||
| interests, historical sites, | subsequently renewed as Large-Scale | ||
| wilderness or national park and | Exploration Licence, 22399-HQ-LEL on | ||
| environmental settings. | 29/12/2017, which was due to expire on | ||
| •The security of the tenure held | 28/12/2021. | ||
| at the time of reporting along | • | This latter tenement was revoked, and a | |
| with any known impediments to | similar ground position was then covered | ||
| obtaining a licence to operate in | by 30426-HQ-LEL, and was initially | ||
| the area. | granted for 4 years to Global |
||
| Development Corporation (GDC) |
|||
| Consulting Zambia Limited on |
|||
| 02/12/2021, expiring on 01/12/2025. | |||
| • | GDC held 100% of the 30426-HQ-LEL | ||
| (now 356 sq km). The licence excluded | |||
| the northeast portion of the former | |||
| licence, which incorporated the historic | |||
| LMW and Kavipopo prospects. | |||
| • | Following the signing of the deal on 29th | ||
| May 2024, PSC has acquired 85% of the | |||
| project from GDC, with the licence now | |||
| held under the name Osprey Resources | |||
| Limited (85% PSC, 15% GDC). | |||
| • | The applications for two mining licences | ||
| were granted in the name of Osprey | |||
| Resources on the 31stMarch 2025 for 25 | |||
| years each. | |||
| • | These licences are 39465-HQ-LML |
||
| which covers the 218 sq km of the | |||
| southern portion of the original licence, | |||
| including Nyungu Central, and 39445- | |||
| HQ-LML which covers 138 sq km of the | |||
| northern portion, including West |
|||
| Mwombezhi and Kabikupa. | |||
| • | Licences are in good standing. | ||
| Exploration | •Acknowledgment and appraisal | • | Roan Selection Trust (1960’s-1970’s) |
| done by other | of exploration by other parties. | completed regional soil sampling, |
|
| parties | augering, wagon drilling and diamond | ||
| drilling. Drilling completed at Nyungu | |||
| Central (drillholes MM295 and MM296). | |||
| • | AGIP-COGEMA JV (1982-1987) - |
||
| Systematic regional radiometric |
|||
| traversing, soil and stream sediment | |||
| sampling, geological mapping, pitting and | |||
| trenching, largely targeting the uranium |
==> picture [181 x 38] intentionally omitted <==
| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| potential. No drilling was completed. | |||
| • | Phelps Dodge (1990’s) - Soil sampling | ||
| and drilling. Diamond drilling completed at | |||
| Nyungu Central (drillholes NYU1 and | |||
| NYU2). | |||
| • | ZamAnglo (2000 - 2003) – Regional and | ||
| infill soil sampling. Geological mapping, | |||
| IP/CR/CSAMT geophysical surveys. |
|||
| Three phases of RC drilling, two |
|||
| programmes at Mumbezhi |
|||
| (MBD00RC001-011 and MBD01RC001- | |||
| 009) and one regional programme | |||
| (MBD02RC001- 007; 012). | |||
| • | Anglo Equinox JV (2003 – 2008) – | ||
| unknown but some drill collars located are | |||
| presumably from this phase of work. | |||
| • | Orpheus Uranium Limited (previously | ||
| Argonaut Resources NL (2011-2021), | |||
| various phases of intermittent RC and | |||
| diamond drilling in JV with Antofagasta | |||
| plc of Nyungu, Kabikupa and the | |||
| Lumwana West (LMW) prospects. | |||
| • | Further drilling and exploration works | ||
| (including geophysics and geochemical | |||
| surface sampling) were conducted |
|||
| between 2012-2021 on the Nyungu | |||
| (Central, South, East and North), West | |||
| Mwombezhi, Kabikupa, Kamafamba, |
|||
| Mufuke, Sharamba and Luamvunda | |||
| prospects by Orpheus Uranium Limited | |||
| both internally and under a JV with | |||
| Antofagasta plc. As part of this | |||
| geophysical contractors UTS flew a high | |||
| resolution aeromagnetic and radiometric | |||
| survey in 2012, which was audited by | |||
| Earth Maps. This was accompanied by a | |||
| detailed Landsat structural interpretation | |||
| and in addition induced polarisation | |||
| programmes were initiated with mixed | |||
| results at Nyungu Central and North. | |||
| Geology | •Deposit type, geological setting, | • | The style of copper and cobalt |
| and style of mineralisation. | mineralisation being targeted is Lumwana | ||
| Mine style, structurally controlled, shear | |||
| hosted, Cu +/- Co (+/- U and Au), which | |||
| are developed within interleaved |
|||
| deformed Lower Roan and basement | |||
| schists and gneisses. The predominant | |||
| structural tend at Nyungu is north-south. | |||
| Southeast – northwest and to a lesser | |||
| extent southwest-northeast cross-cutting | |||
| structures have also affected the ore |
==> picture [181 x 38] intentionally omitted <==
| Criteria | JORC Code explanation | Commentary | Commentary | ||||
|---|---|---|---|---|---|---|---|
| body. | |||||||
| • | The mineralisation at | Kabikupa, | which is | ||||
| ascribed to | a younger | mineralisation | |||||
| remobilisation event, during | Lufilian | ||||||
| deformation, | has a southeast-northwest | ||||||
| trend. | |||||||
| Drill hole | •A summary of all information | • | Exploration | results | are | not |
being |
| Information | material to the understanding of | reported. | |||||
| the exploration results including | |||||||
| a tabulation of the following | |||||||
| information for all Material drill | |||||||
| holes: | |||||||
oeasting and northing of the |
|||||||
| drill hole collar | |||||||
oelevation or RL (Reduced |
|||||||
| Level – elevation above sea | |||||||
| level in meters) of the drill | |||||||
| hole collar | |||||||
odip and azimuth of the hole |
|||||||
odown hole length and |
|||||||
| interception depth | |||||||
ohole length. |
|||||||
| •If the exclusion of this | |||||||
| information is justified on the | |||||||
| basis that the information is not | |||||||
| Material and this exclusion does | |||||||
| not detract from the | |||||||
| understanding of the report, the | |||||||
| Competent Person should | |||||||
| clearly explain why this is the | |||||||
| case. | |||||||
| Data | •In reporting Exploration Results, | • |
Exploration | results | are | not |
being |
| aggregation | weighting averaging techniques, | reported. | |||||
| methods | 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. |
==> picture [181 x 38] intentionally omitted <==
| Criteria | JORC Code explanation | Commentary | Commentary | |||
|---|---|---|---|---|---|---|
| Relationship | •These relationships are | • | Exploration results |
are | not | being |
| between | particularly important in the | reported. | ||||
| mineralisatio | reporting of Exploration Results. | • |
For Nyungu prospects, due | to | the dip | |
| n widths and | •If the geometry of the | attitude of the mineralisation, 70o | ||||
| intercept | mineralisation with respect to | inclined drillholes do not all intersect the | ||||
| lengths | the drill hole angle is known, its | mineralisation completely perpendicular. | ||||
| nature should be reported. | At Kabikupa the drillholes do | intersect at | ||||
| close to perpendicular. | Drilling is normal | |||||
| to strike of the mineralisation | but not | |||||
| completely perpendicular to the dip. | ||||||
| • | Exploration results |
are | not | being |
||
| 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’). | ||||||
| Diagrams | •Appropriate maps and sections | • | Exploration results |
are | not being |
|
| (with scales) and tabulations of | reported. | |||||
| 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. | ||||||
| Balanced | •Where comprehensive reporting | • |
Exploration results |
are | not being |
|
| reporting | of all Exploration Results is not | reported. | ||||
| practicable, representative | ||||||
| reporting of both low and high | ||||||
| grades and/or widths should be | ||||||
| practiced to avoid misleading | ||||||
| reporting of Exploration Results. | ||||||
| Other | •Other exploration data, if | • | For Nyungu Central | and | Kabikupa, | |
| substantive | meaningful and material, should | coincident Airborne |
Electromagnetic | |||
| exploration | be reported including (but not | (AEM) chargeability |
anomalies are |
|||
| data | limited to): geological | apparent with the copper mineralisation | ||||
| observations; geophysical | and hence are considered a useful | |||||
| survey results; geochemical | exploration method |
for | targeting | |||
| survey results; bulk samples – | additional copper mineralisation at the | |||||
| size and method of treatment; | Mumbezhi Project. | |||||
| metallurgical test results; bulk | • | A coincident Cu surface geochemical | ||||
| density, groundwater, | anomaly to ≥200ppm | Cu is considered | ||||
| geotechnical and rock | anomalous to background. | |||||
| characteristics; potential | • | Bulk density information was | captured | |||
| deleterious or contaminating | regularly from the Phase 1 and | Phase 2 | ||||
| substances. | diamond drilling programmes at Nyungu | |||||
| Central and Kabikupa. | ||||||
| • | This data complements the | historical | ||||
| measurements completed | for | Nyungu |
==> picture [181 x 38] intentionally omitted <==
-
Criteria JORC Code explanation Commentary Central by Orpheus Uranium.
-
• Flotation test work completed on sulphide materials from the Nyungu Central deposit returned high-grade saleable copper concentrates with excellent recoveries during 2025.
-
• Test work programmes utilised a simple flowsheet, similar to that used at other operations in the Zambian Copper Belt.
-
• Representative fresh composite sample from Nyungu Central achieved a copper concentrate grading 24.6% Cu & 9,000 ppm Co at 96.2% Cu recovery after a single cleaning stage.
-
• After two cleaning stages, a copper concentrate grading 33.3% Cu & 2,800 ppm Co was produced with 90.1% Cu recovery.
-
• Primary grind size can be coarsened from 150μm up to approx. 250μm with minimal impact on copper recovery delivering positive implications for future plant capital and operating costs.
-
• Relatively high graphitic carbon levels (up to 4.8% TGC) presented no barrier to achieving good quality copper concentrates, with the use of carboxymethylcellulose (CMC), as an effective depressant for graphitic carbon.
-
• In addition, metallurgical test work on fresh sulphide Kabikupa composite sample achieved a copper concentrate of 27.5% Cu and 310 ppm Co at 95.3% Cu recovery after only one cleaning stage.
-
• Nyungu Central fresh composite achieved a copper concentrate of 24.6% Cu and 0.9% Co at 96.2% Cu recovery after a single cleaning stage.
-
Nyungu Central transition composite achieved a copper concentrate of 32.1% Cu and 9.1% Co at 81.4% Cu recovery after two cleaning stages.
-
Further work • The nature and scale of planned • The Company proposes to undertake further work (eg tests for lateral Scoping Studies and Feasibility Studies extensions or depth extensions and seek to bring the Mumbezhi Project or large-scale step-out drilling). into commercial copper production as
-
• Diagrams clearly highlighting the soon as is practicable, if economic to do areas of possible extensions, so. including the main geological • Prospect will also review all other interpretations and future drilling substantive copper anomalies defined on areas, provided this information the existing licence as potential satellite
==> picture [181 x 38] intentionally omitted <==
| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| is not commercially sensitive. | open pit feed options to a central mining | ||
| and processing facility hub, situated | |||
| proximal to the prospective Nyungu | |||
| series of deposits, which are presently | |||
| considered the flagship assets at the | |||
| Project. | |||
| • | Three phases of development drilling are | ||
| planned for Nyungu Central, with at least | |||
| three of the new airborne electromagnetic | |||
| (AEM) anomalies identified in late 2025 | |||
| (including Chipimpa, Sharamba and | |||
| Nyungu South) for potential exploratory | |||
| drill testing in 2026, for approximately | |||
| 26,000m total (DD, RC and aircore). |
==> picture [181 x 38] intentionally omitted <==
Section 3 Estimation and Reporting of Mineral Resources (Criteria listed in Section 1, and where relevant Section 2, also apply to this section)
| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| Database | •Measures taken to ensure that | • | Data collected in the field has been |
| Integrity | data has not been corrupted by, | validated prior to and during upload to the | |
| for example, transcription or | master database. Field data collection | ||
| keying errors, between its initial | sheets and master database have |
||
| collection and its use for Mineral | validation controls on data entry (i.e. a | ||
| Resource estimation purposes. | filter in the input Excel sheets). Pre-2014 | ||
| data has been verified before importing | |||
| into the Geospark database. Any queries | |||
| or errors are reported back to the | |||
| Database Manager for correction before a | |||
| new export is delivered. | |||
| •Data validation procedures | • | Prospect uses Geospark. Data is entered | |
| used. | directly into the database. Rules have | ||
| been set up to ensure only valid data is | |||
| entered. | |||
| • | Once data has been entered it is plotted | ||
| up using Micromine or Leapfrog software | |||
| to check against neighbouring holes. | |||
| • | The company’s DBA imports all electronic | ||
| data received into the Geospark | |||
| database | |||
| • | The Geospark database is a MS SQL | ||
| Server database, which is relational and | |||
| normalised. As a result of normalisation, | |||
| the following data integrity categories | |||
| exist: | |||
| • | Entity Integrity: No duplicate rows in a | ||
| table, eliminated redundancy and chance | |||
| of error. | |||
| • | Domain Integrity: Enforces valid entries | ||
| for a given column by restricting the type, | |||
| the format, or a range of values. | |||
| • | Referential Integrity: Rows cannot be | ||
| deleted which are used by other records. | |||
| • | User-Defined Integrity: Logging rules and | ||
| validation codes set up by the company. | |||
| • | Data extracted from the database was | ||
| validated visually in Micromine software | |||
| and when using the data any errors | |||
| regarding incorrect locations, missing | |||
| collar information, logging, sampling, and | |||
| downhole survey data and overlapping | |||
| intervals are highlighted. | |||
| Site Visits | •Comment on any site visits | • | Mr. Steve Rose (Rose Mining Geology |
| undertaken by the Competent | Consultants) is the Competent Person. | ||
| Person and the outcome of | He has visited Mumbezhi area many |
==> picture [181 x 38] intentionally omitted <==
| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| those visits. | times when working as a consultant | ||
| •If no site visits have been | geologist in the 1990’s, and again in the | ||
| undertaken indicate why this is | 2010’s when carrying out consulting work | ||
| the case. | at FQM’s Kansanshi Copper Mine. This | ||
| has provided knowledge of the geological | |||
| controls on this mineralisation. | |||
| • | Steve Rose visited the Mumbezhi Copper | ||
| Project during May 2025, at the start of | |||
| the Phase 2 drilling programme being | |||
| actively carried out by Prospect. | |||
| • | Steve Roseindicated and concluded that | ||
| he was satisfied that Prospect Resources | |||
| were aligned with industry standard |
|||
| practices at the Project, and in some areas | |||
| working at best practice. | |||
| Geological | •Confidence in (or conversely, | • | The Nyungu Central deposit consists of a |
| Interpretation | the uncertainty of ) the | series of stacked thrust hosted |
|
| geological interpretation of the | mineralised ore schists, that dip |
||
| mineral deposit. | moderately to the west. The existence of | ||
| •Nature of the data used and of any assumptions made. |
these north-south trending thrusts has been confidently interpreted from the |
||
| •The effect, if any, of | 2011 UTS aeromagnetic and radiometric | ||
| alternative interpretations | survey. | ||
| on Mineral Resource | • | Numerous small-scale southeast- |
|
| estimation. | northwest and southwest-northeast |
||
| •The use of geology in guiding and controlling Mineral Resource estimation. •The factors affecting continuity both of grade and geology. |
• | trending faults are also interpreted from the same geophysics and can be interpreted as controlling certain drainages. The position and general morphology of the mineralisation, which has no surface exposure was determined by soil |
|
| geochemistry and Induced Polarisation | |||
| surveys between 2000 – 2010, prior to the | |||
| 2011 Argonaut Resources NL (now | |||
| Orpheus Uranium Limited) drilling |
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| programmes. | |||
| • | Oxide, transition and (fresh) sulphide | ||
| domains were determined on the degree | |||
| of weathering and associated mineral | |||
| assemblages. | |||
| • | There is a high degree of confidence in | ||
| the interpretation of the copper |
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| mineralisation based on the relatively | |||
| tight drill grid, and the relative |
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| predictability of the depths of the | |||
| mineralised ore sheets that were |
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| intercepted during Prospect Resources’ | |||
| most recent Phase 1 and Phase 2 drilling | |||
| programmes. | |||
| • | The Kabikupa satellite deposit is hosted |
==> picture [181 x 38] intentionally omitted <==
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Criteria JORC Code explanation Commentary by similar mica-schists and gneisses and has a very similar mineral assemblage to Nyungu Central, but is seemingly younger, and less structurally complex. The ore zones form two, possibly three, sub-parallel layers within a broader stratabound sulphide assemblage that strikes for 1.5km southeast-northwest and dips at approx. 30° to the northeast.
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• Overall, there is a reasonable level of confidence in the geological interpretation of the mineralisation at Nyungu Central, and at Kabikupa, reflecting the relative amount of drilling now completed by Prospect at those deposits.
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• The grade and lithological interpretation form the basis for the modelling. Lithological envelopes defining the prospective mineralisation within which the grade estimation have been completed.
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• Weathering domain and lithology orientation and foliation, affect the continuity both of grade and geology.
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Dimensions • The extent and variability of the • The site of Nyungu Central is essentially Mineral Resource expressed as a flat lying wooded plain. The ore body length (along strike or extends approximately 1,700m northotherwise), plan width, and south, and ~1,000m east-west (based on depth below surface to the the new deep intersection within upper and lower limits of the NCDD013). Mineral Resource. • The mineralisation has been intercepted to ~600m below surface and remains open down dip to the west.
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• Recent airborne electromagnetic chargeability anomalies indicate that the deposit also has a similar footprint to that described above.
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• At Kabikupa, the mineralisation has been interpreted over a strike length of 1,800m, with a width of 500m, and a depth extent of 300m.
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Estimation • The nature and appropriateness • For Nyungu Central prospect, grade and Modelling of the estimation technique(s) estimation was carried out using ordinary Techniques applied and key assumptions, kriging, with inverse distance used as a including treatment of extreme check estimate. The 1 m composite topgrade values, domaining, cut dataset was used for the grade interpolation parameters and interpolation. Estimation of the resource maximum distance of was completed using Micromine extrapolation from data points. If software. The mineralisation domains, a computer assisted estimation resource category and lithology were method was chosen include a coded to the block model. Density data
==> picture [181 x 38] intentionally omitted <==
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Criteria JORC Code explanation Commentary description of computer software was also imported. and parameters used. • For Kabikupa, grade estimation was
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• The availability of check carried out using inverse distance only estimates, previous estimates (reflecting the relatively limited dataset
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and/or mine production records and whether the Mineral and difficulty in plotting meaningful Resource estimate takes variograms). The 1 m composite top-cut appropriate account of such dataset was used for the grade data. interpolation. Estimation of the resource was completed using Micromine software. The mineralisation domains, resource category and lithology were coded to the block model. Density data was also imported.
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• For Nyungu Central the Ordinary Kriged estimate has been reported. As part of the model validation this has been compared to an Inverse Distance estimate. In addition, an informal estimate was carried out using Micromine’s Grade Co-Pilot method to provide a check.
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• For Kabikupa prospect the Inverse Distance estimate has been reported. In addition, an informal estimate was carried out using Micromine’s Grade Co-Pilot method to provide a check.
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• The assumptions made • The MRE includes copper, gold and regarding recovery of bycobalt estimations. Copper is assumed as
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products. the economic metal. A CuEq% value has been calculated using grades of the three metals and accountability of likely recoveries and conservative metal commodity prices (see Appendix 2).
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• Estimation of deleterious • No potentially deleterious elements have elements or other non-grade been considered. variables of economic • A 3D block model was generated to significance (eg sulphur for acid enable grade estimation. The selected mine drainage characterisation). block size was based on the geometry of
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• In the case of block model the domain interpretation and the data
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interpolation, the block size in relation to the average sample configuration. A block model was created spacing and the search using 10.0 mE x 10.0 mN x 5.0 mRL employed. parent blocks. Sub-cells were generated down to 1 mE x 1 mN x 1 mRL as appropriate to honour wireframe domains and geological interpretations during model construction. This compares with infill drill spacing of 40-120 m.
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• No selective mining units were assumed in this estimate.
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• No strong correlations were found
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• Any assumptions behind between the grade variables. modelling of selective mining • Geological interpretation was used as a
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| Criteria | JORC Code explanation | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|---|
| • | units. Any assumptions about correlation between variables. |
basis for mineralisation modelling. Lower cut-off grades of 0.15% was used for copper domains. Hard boundaries |
||
| • | Description of how the geological interpretation was |
between the grade envelopes were used to select sample populations for grade |
||
| used to control the resource | estimation. | |||
| estimates. | • | Copper mineralisation wireframes was | ||
| ▪ | interpreted using implicit vein modelling | |||
| tools within Micromine. | ||||
| • | Top cuts were used to treat the high- | |||
| grade outliers of the domains. Top cuts | ||||
| were based on review of the domain | ||||
| histogram and log probability plot. Top- | ||||
| • | Discussion of basis for using or | cut values at Nyungu Central vary | ||
| not using grade cutting or | between weathering domain. In the oxide | |||
| capping. | domain, no top cut is required; in the | |||
| transitional domain a top-cut of 1.8% was | ||||
| applied to Cu grade, with no top-cutting | ||||
| necessary for Au and Co. For the fresh | ||||
| domain Au was cut to 0.6 g/t Au, Co was | ||||
| cut to 0.46%, and Cu was cut to 5%. | ||||
| • | No top-cutting was needed for the | |||
| Kabikupa samples. | ||||
| • | Validation of the block model consisted of | |||
| comparison of the block model volume to | ||||
| the wireframe volume. Grade estimates | ||||
| were validated by statistical comparison | ||||
| • | The process of validation, the checking process used, the comparison of model data to drill hole data, and use of |
with the drill data, and visual comparison of grade trends in the model with the drill data trends. Additionally, swath plots were generated to verify block model |
||
| reconciliation data if available. | grades vs drill hole grades along easting, | |||
| northing and elevation slices. | ||||
| Moisture | • | Whether the tonnages are | • | Tonnages are estimated on a dry basis. |
| estimated on a dry basis or with | ||||
| natural moisture, and the | ||||
| method of determination of the | ||||
| moisture content. | ||||
| Cut-Off | • | The basis of the adopted cut-off | • | By statistical analysis of the TCu assay |
| Parameters | grade(s) or quality parameters | data, and by comparison with |
||
| applied_._ | neighbouring operations (notably Sentinel | |||
| and Lumwana), initial cut-off grades of | ||||
| 0.15% Cu, 0.2% Cu and 0.3% Cu were | ||||
| delineated. | ||||
| • | This was broadly based on a metallurgical | |||
| recovery of 85%, copper price of | ||||
| US$11,500/t, and mining/milling costs of | ||||
| US$10.80/t and royalty of 5%. | ||||
| Mining | • | Assumptions made regarding | • | The assumed mining method would be |
| factors or | possible mining methods, | standard drill, blast, load and haul using | ||
| assumptions | minimum mining dimensions | excavator and truck configuration for an |
==> picture [181 x 38] intentionally omitted <==
| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| and internal (or, if applicable, | open pit (cast) operation. | ||
| external) mining dilution. It is | |||
| always necessary as part of the | |||
| process of determining | |||
| reasonable prospects for | |||
| eventual economic extraction to | |||
| consider potential mining | |||
| methods, but the assumptions | |||
| made regarding mining methods | |||
| and parameters when | |||
| estimating Mineral Resources | |||
| may not always be rigorous. | |||
| Where this is the case, this | |||
| should be reported with an | |||
| explanation of the basis of the | |||
| mining assumptions made. | |||
| Metallurgical | •The basis for assumptions or | • | A metallurgical hole (HQ diameter) at |
| factors or | predictions regarding | Nyungu Central intercepted all expected | |
| assumptions | metallurgical amenability. It is | ore domains of mineralisation (oxide, | |
| always necessary as part of the | transition and fresh), was completed | ||
| process of determining | (Hole ID: NCMT002). | ||
| reasonable prospects for | • | A metallurgical hole (HQ diameter) at | |
| eventual economic extraction to | Kabikupa intercepted all expected ore | ||
| consider potential metallurgical | domains of mineralisation (oxide, |
||
| methods, but the assumptions | transition and fresh), was completed | ||
| regarding metallurgical | (Hole ID: KKMT002). | ||
| treatment processes and | • | The selected Nyungu Central samples for | |
| parameters made when | met test work weighed 224kg and were | ||
| reporting Mineral Resources | received in Australia in December 2024 | ||
| may not always be rigorous. | with metallurgical test work completed in | ||
| Where this is the case, this | Q2 2025 completion. | ||
| should be reported with an | • | The selected Kabikupa samples for met | |
| explanation of the basis of the | test work weighed 31kg and were | ||
| metallurgical assumptions | received in Australia in Q1 2025 with | ||
| made. | metallurgical test work completed in Q3 | ||
| 2025. | |||
| • | Technical studies are being undertaken | ||
| by Core Metallurgy (previously owned by | |||
| Mt Isa Mines with rich history in copper | |||
| technical studies). | |||
| • | Core Metallurgy carried out initial |
||
| metallurgical scoping test work for |
|||
| Mumbezhi, under the supervision of | |||
| Argonaut during 2019-2020. | |||
| • | The analytical results from the |
||
| metallurgical samples will feed into the | |||
| geo-metallurgical framework |
|||
| development for Mumbezhi. | |||
| Environmenta | •Assumptions made regarding | • | Initial site layout designs have considered |
| l factors or | possible waste and process | tailings emplacement locations. At this | |
| assumptions | residue disposal options. It is | stage, no mining waste dump or long-term |
==> picture [181 x 38] intentionally omitted <==
| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| always necessary as part of the | stockpiles locations have been planned. | ||
| process of determining | There is a sufficient land holding for | ||
| reasonable prospects for | adequate waste dumping. | ||
| eventual economic extraction to | • | It is assumed that waste rock will be | |
| consider the potential | dumped into an engineered waste rock | ||
| environmental impacts of the | dump, with a design to control acid mine | ||
| mining and processing | drainage. | ||
| operation. While at this stage | |||
| the determination of potential | |||
| environmental impacts, | |||
| particularly for a greenfields | |||
| project, may not always be well | |||
| advanced, the status of early | |||
| consideration of these potential | |||
| environmental impacts should | |||
| be reported. Where these | |||
| aspects have not been | |||
| considered this should be | |||
| reported with an explanation of | |||
| the environmental assumptions | |||
| made. | |||
| Bulk Density | •Whether assumed or | • | Specific Gravity has been determined by |
| determined. If assumed, the | using the Archimedes immersion method. | ||
| basis for the assumptions. If | Measurements were completed on 317 | ||
| determined, the method used, | individual drill core measurements from | ||
| whether wet or dry, the | 14 DD holes on Nyungu Central, and 61 | ||
| frequency of the measurements, | measurements from 3 out of the 5 holes | ||
| the nature, size and | drilled in Kabikupa. The samples were | ||
| representativeness of the | oven dried, weighed, coated with wax | ||
| samples. | then weighed dry and in water using a | ||
| •The bulk density for bulk | Density Scale. | ||
| material must have been | • | The average SG for Nyungu Central has | |
| measured by methods that adequately account for void spaces (vugs, porosity, etc), moisture and differences between rock and alteration |
been approximated at 2.82 - being a straight average of the measured samples in the mixed and fresh zone, as only a few measurements could be done in the oxide zone which is predominantly too weathered for the samples to |
||
| zones within the deposit. | withstand the method. | ||
| •Discuss assumptions for bulk | • | The average SG for Kabikupa from the 3 | |
| density estimates used in the | holes is approximated at 2.64, also | ||
| evaluation process of the | coming predominantly from the solid core | ||
| different materials. | which could withstand the determination | ||
| method. | |||
| • | Density has been applied on the basis of | ||
| weathering domain. | |||
| Classification | •The basis for the classification |
• | The Mineral Resources are classified as |
| of the Mineral Resources into | Inferred and Indicated, considering the |
==> picture [181 x 38] intentionally omitted <==
| Criteria | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|
| varying confidence categories. | level of geological understanding of the | ||
| •Whether appropriate account | deposit, quality of samples, density data, | ||
| has been taken of all relevant | drill hole spacing and sampling and | ||
| factors (ie relative confidence in tonnage/grade estimations, reliability of input data, confidence in continuity of geology and metal values, |
• • |
assaying processes. The following initial classification approach was adopted: The Mineral Resource was classed as Indicated if a block was assigned a grade in the first and second estimation pass |
|
| quality, quantity and | and reviewing kriging values for slope and | ||
| distribution of the data). | kriging efficiency. | ||
| •Whether the result appropriately | • |
The Mineral Resource was classed as | |
| reflects the Competent Person’s view of the deposit. |
Inferred if assigned a grade in the third estimation pass and reviewing kriging |
||
| values for slope and kriging efficiency. | |||
| • | Once blocks were coloured up with these | ||
| codes, the classification was simplified to | |||
| remove “spotty dogs” and applied based | |||
| on strings and wireframes. | |||
| • | The classifications of the MREs and | ||
| appropriately reflect the view of the | |||
| Competent Person. | |||
| Audits or | •The results of any audits or | • | No external audits or reviews have been |
| reviews | reviews of Mineral Resource | completed for the Mineral Resource | |
| estimates. | estimate. | ||
| • | An internal peer review of the estimate | ||
| was carried out by a colleague of Steve | |||
| Rose, as part of the Rose Mining Geology | |||
| (RMG) process. | |||
| Discussion of | •Where appropriate a statement |
• | The relative accuracy of the Mineral |
| relative | of the relative accuracy and | Resource estimates are reflected in the | |
| accuracy / | confidence level in the Mineral | reporting of the Mineral Resource as per | |
| confidence | Resource estimate using an | the guidelines of the 2012 JORC Code. | |
| approach or procedure deemed | • | The statement relates to the global | |
| appropriate by the Competent | estimates of tonnes, grades and |
||
| Person. For example, the | calculated contained metals. There has | ||
| application of statistical or | been no trial mining or production | ||
| geostatistical procedures to | undertaken to date at the Mumbezhi | ||
| quantify the relative accuracy of | Copper Project. | ||
| the resource within stated | • | The Mineral Resource statement relates | |
| confidence limits, or, if such an | to a global tonnage and grade estimate. | ||
| approach is not deemed | Grade estimates have been made for | ||
| appropriate, a qualitative | each block in the block model. | ||
| discussion of the factors that could affect the relative |
• | Mumbezhi Copper Project is a prospect and is not in production. |
|
| accuracy and confidence of the | |||
| estimate. | |||
| •The statement should | |||
| specify whether it relates to | |||
| global or local estimates, |
==> picture [181 x 38] intentionally omitted <==
| Criteria | JORC Code explanation | Commentary |
|---|---|---|
| and, if local, state the | ||
| relevant tonnages, which | ||
| should be relevant to | ||
| technical and economic | ||
| evaluation. Documentation | ||
| should include assumptions | ||
| made and the procedures | ||
| used. | ||
| •These statements of relative | ||
| accuracy and confidence of the | ||
| estimate should be compared | ||
| with production data, where | ||
| available. |