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SUPERIOR RESOURCES LIMITED Capital/Financing Update 2025

Nov 12, 2025

65848_rns_2025-11-12_502dcead-eee1-4bbd-ab41-14ca0a25715e.pdf

Capital/Financing Update

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ASX Announcement

13 November 2025

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Steam Engine Mineral Resource Estimate Update Major Growth Potential Across 10km Strike

KEY POINTS:

  • Updated Mineral Resource Estimate completed for the Steam Engine Gold Project:

Higher tonnage Owner Operated Processing Plant Scenario (lower cut-off grade of 0.25 g/t Au)

  • 4.40 Mt @ 1.37g/t Au for 194,000 oz Au

High Grade Toll Treatment Scenario (higher cut-off grade of 1.0 g/t Au)

  • 2.40 Mt @ 2.06g/t Au for 159,000 oz Au

Total Resource (cut-off grade: 0.25 g/t Au)

  • MEASURED: 0.87 Mt @ 1.67g/t Au for 47,000 oz Au (24%)

  • INDICATED: 1.87 Mt @ 1.36g/t Au for 82,000 oz Au (42%)

  • INFERRED: 1.66 Mt @ 1.22g/t Au for 65,000 oz Au (34%)

  • Substantial Resource base: Resource envelope defined to 200m depth over 1.5 km of continuous lode strike

  • Significant Upside Potential: A further 10 kms of prospective lode extensions identified by recent studies, presenting substantial growth potential

  • Growth-Focussed Drilling: Drilling program design underway to drive additional Resource expansion across multiple target zones

Superior Resources Limited ( ASX:SPQ ) ( Superior , the Company ) is pleased to provide a Mineral Resource Estimate Update ( MRE ) for its 100%-owned Steam Engine Gold Project, located 210 km west of Townsville, Queensland ( Fig. 1 ).

The MRE updates the 2022 MRE[1] and incorporates investigative and Resource expansion drilling conducted during H2 2024. The 2024 drilling investigated the northern end of the Steam Engine Lode and the northern and southern ends of the Eastern Ridge Lode. Only limited drilling was conducted to extend the Resource envelopes at depth.

The MRE is presented on the basis of two operational scenarios: a toll treatment scenario (block cut-off grade of 1.0 g/t Au and above); and a SPQ-owned and operated processing plant scenario (block cut-off grade of 0.3 g/t Au (0.25 g/t Au cut-off)) ( Table 1 ).

Superior’s Managing Director, Peter Hwang, said:

“The 2025 gives us a solid platform for the Feasibility Study and reveals exciting new lode structures at Steam Engine’s northern end. We’ve extended the strike length and uncovered a new gold trend with multi-kilometre potential. With gold prices remaining strong and the 2024 Scoping Study showing robust returns, we’re accelerating development planning and launching a further along-strike expansion drilling program.”

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1 Refer ASX announcement dated 11 April 2022.

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Steam Engine
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Figure 1. Plan showing Greenvale Project regional magnetics, granted and new EPM applications and key prospects within porphyry Cu-Au and Ni-Cu-PGE domains.

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Summary MRE Update

Table 1. Steam Engine Gold Project Updated 2025 Mineral Resource Estimates

Scenario2 Classification Tonnes
(Mt)
Grade
(g/t Au)
Ounces
(Au)
OWNER OPERATOR
SCENARIO
(0.25 g/t Au block grade cut-
off)
MEASURED 0.87 1.67 47,000
INDICATED 1.87 1.36 82,000
INFERRED 1.66 1.22 65,000
TOTAL 4.40 1.37 194,000
TOLL TREATMENT
SCENARIO
(1.0 g/t Au block grade cut-off)
MEASURED 0.53 2.40 41,000
INDICATED 1.04 2.03 68,000
INFERRED 0.82 1.88 50,000
TOTAL 2.40 2.06 159,000

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Steam Engine Lode
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Figure 2. Oblique 3D view (from above GL) of the Steam Engine and Eastern Ridge lode block models (only showing blocks >0.5 g/t to enable visibility of higher grades) viewed towards grid south easterly showing block grade categories.

2 Mineral Resource estimates are calculated on the basis of preliminary studies indicating that material of 1.0 g/t Au and above would likely be viable for a Toll Treatment operation and material of 0.25 g/t Au and above would likely be viable for an Owner Operated Processing Plant operation. Due to rounding to appropriate significant figures, minor discrepancies in calculations of reported tonnes, grades and ounces may occur. Tonnages are dry metric tonnes. The lower grade material above 0.25 g/t cut-off is inclusive of the higher grade cut-off (+1.0 g/t) reported Resource. Mineral Resources are not Ore Reserves and do not have demonstrated economic viability. Inferred Resources have less geological confidence than Indicated Resources and should not have modifying factors applied to them. It is reasonable to expect that with further exploration most of the Inferred Resources could be upgraded to Indicated Resources.

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Au Steam Engine MRE Movement
Ounces (Total contained Au)
200,000
180,000
Inferred Inferred
160,000
75,000 65,000
140,000
120,000
100,000 Inferred
Indicated Indicated
55,000
80,000 68,000 82,000
Inferred
60,000
64,000
Inferred Indicated
40,000 85,000 47,000
Measured Measured
20,000 Indicated Measured 53,000 47,000
30,000
- 20,000
October 2017 May 2020 March 2021 April 2022 November 2025
(cut-off 1.0 g/t Au) (cut-off 0.5 g/t Au) (cut-off 0.5 g/t Au) (cut-off 0.25 g/t Au) (cut-off 0.25 g/t Au)
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Figure 3. Chart showing changes in the Mineral Resource inventory at the Steam Engine Gold Project. For further information regarding prior Mineral Resource Estimates, refer to the following ASX announcements: “Maiden JORC inferred Mineral Resource Estimate, Steam Engine Gold Deposit”, dated 19 October 2017; “Steam Engine Gold Mineral Resource upgraded 11%. Scoping Study planned amid record AUD gold prices”, dated 4 May 2020; “Steam Engine revised Mineral Resource Estimate: JORC Measured and Indicated Resources upgraded by 31%”, dated 22 March 2021; and “Material upgrade in Steam Engine Resource to 196,000 oz Au with 80.6% increase to Measured and Indicated categories”, dated 11 April 2022.

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Figure 4. Aerial view of the Steam Engine Gold Project taken during 2021 Resource drilling program, looking southeast.

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Superior’s Managing Director, Peter Hwang, said:

“The 2025 MRE update and information from the modelling process have delivered a solid foundation to progress the current Feasibility Study and also a better understanding of mineralisation controls to guide efficient Resource expansion drilling programs going forward.

“The key differences between the 2022 MRE and the 2025 MRE are the inclusion of RC drill holes from the modestly sized 2024 RC drilling program and the use of Ordinary Kriging by an independent consulting firm for modelling of the MRE. This was deemed necessary for the purpose of the Feasibility Study.

“Although the overall gold inventory remained very similar to the 2022 MRE, geological modelling of the 2024 drilling data at the northern end of the Steam Engine Lode highlighted significant and important lode characteristics at the northern end. These include the development of multiple, stacked lodes as well as a new lode set that appears to have a different orientation to the main Steam Engine lodes. In particular, the new lode set aligns with a more westerly-oriented gold trend with a south-westerly strike that can be traced for several kilometres.

“The updated MRE has extended the Mineral Resource envelope from 1.3 kilometres to 1.5 kilometres of lode strike. Recent mapping, soil geochemistry and ground magnetics have identified at least another 10 kilometres of additional strike potential with mineralised lode cropping out at surface in several places.

“With the price of gold showing buoyancy above A$6,000 per ounce and our 2024 Scoping Study indicating robust returns at a gold price assumption of A$3,250, we will be expediting the Feasibility Study and development planning process, including rolling out a further Resource expansion drilling program. We look forward to updating the market and releasing full details of the programs in due course.”

2025 MRE Update

The updated MRE for the Steam Engine Gold Project ( Project ) incorporates data from most of the reversecirculation ( RC ) and diamond drill holes completed during 2020, 2021 and 2024, including data from historic RC holes. The updated MRE supersedes the earlier 2022 Mineral Resource Estimate announced to the market on 11 April 2022.

Data source – Drill Holes

A total of 148 RC, 18 diamond core and 3 diamond core tails on RC pre-collared drill holes for 24,269m have been used to define Mineral Resources within the Steam Engine and Eastern Ridge lodes.

Prior to Superior’s acquisition of the project in 2017 another four companies completed drilling programs: Noranda from 1985 to 1987; Pioneer Resources from 1988 to 1989; Pancontinental in 1994; and Beacon in 2007. Historical drilling was dominantly RC with limited diamond core holes. Drilling by Superior comprises approximately 80% of the total metres at both deposits .

Drill hole pierce points in the Steam Engine and Eastern Ridge lodes are spaced at 25m or less, with 10 m spacing in parts of the Steam Engine Lode ( Fig. 2 ).

Estimations for two operating scenarios

The Resource modelling process produced single block models for each of the Steam Engine and Eastern Ridge lodes. Mineral Resource estimations were calculated to suit two operating scenario models:

  1. High Grade MRE – Toll treatment scenario ; and

  2. Low Grade MRE – Owner operated processing plant scenario .

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The two scenarios were selected on the basis of preliminary studies indicating that lode intersections of 1.0 g/t gold and above would likely be viable for a toll treatment operation and that lode intersections of 0.3 g/t gold and above would likely be viable for a SPQ owned and operated processing plant operation. The low-grade model would only be viable if a sufficient amount of additional open-pit ounces can be defined from further drilling. The purpose for assessing the two scenarios was to assist in determining the most beneficial development pathway for the Project.

The updated Measured, Indicated and Inferred MREs total ( Table 1 ):

  • 4.40 Mt @ 1.37 g/t Au for 194,000 oz Au (Owner Operator Scenario @ 0.25 g/t Au cut-off) ; and

  • 2.40 Mt @ 2.06 g/t Au for 159,000 oz Au (Toll Treatment Scenario @ 1.0 g/t Au cut-off) .

Comparison to 2022 MRE

Compared to the 2022 MRE, the updated MRE provides good support for the prior estimate, with a total of 194,000 oz Au compared to 196,000 oz Au in the 2022 MRE ( Fig. 3 ).

Although the updated MRE includes additional drill hole data from the 2024 drilling program and extended the overall strike length of the Resource envelope by about 200 metres, several factors have contributed to limiting expansion of the Mineral Resource inventory. These factors include:

  • the 2024 drilling program was relatively modest in size and mainly investigated the northern ends of the Steam Engine and Eastern Ridge lodes, with limited down-dip drilling;

  • whilst significant positive development of mineralisation was encountered at the northern ends of the lodes (e.g. multiple-stacked lodes and new hanging wall lodes), additional dilution was introduced from barren zones between the multiple-stacked lodes; and

  • a different modelling and interpretation technique was used for the updated MRE (Ordinary Kriging, instead of inverse distance cubed (ID3)).

Overall, at the 0.25 g/t Au cut-off there has been an increase in tonnes and a slight decrease in grade to give a small increase in ounces ( Tables 2 and 3, Fig. 3 ). At the 1.0 g/t Au cut-off there has been an overall decrease in tonnes and no change in grade to give a decrease in ounces.

Most of the loss in ounces at the 1.0 g/t Au cut-off is from the Eastern Ridge model, which is explained by drilling since 2022 that targeted the down-dip and along strike extensions to the lodes. Results of this drilling gave intersections that were both narrower and lower grade than the 2022 modelling had predicted. Although lode volumes were extended along strike, there was still a net loss in tonnes compared to 2022. The results are largely explained by insufficient data to indicate the mineralising fluid pathways. It now appears that the fluid pathways and potential ore shoots are oriented down-dip towards the northwest and that further drilling to investigate the pathways is required in the next drilling program.

There was also a volume loss of about 10% (210 kt) at the Steam Engine Lode system at the 1.0 g/t Au cut-off compared to the 2022 model, accompanied by an increase in average grade of about 9%, resulting in a small overall loss of ounces. At the 0.25 g/t cut-off, tonnes increased by 9% and grade decreased by 7% to give a 4% increase in ounces. This increase can be mostly attributed to the addition of the hangingwall zone in the north of the system that is mostly below 1.0 g/t Au.

Decreases in grade (and ounces) at the 1.0 g/t Au cut-off is also partly due to the difference in modelling and estimation techniques utilised. The 2022 model used inverse distance cubed (ID3) estimation with a global top cut of 60 g/t Au, which will have increased the influence of higher-grade samples somewhat compared to kriging, especially in those areas with wider spaced drilling.

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Differences in Resource categories reflect differing opinions of the Competent Persons regarding the confidence in grade and tonnage estimates.

Table 2. 2025 Mineral Resource Estimate for the Steam Engine Gold Project

0.25 g/t
cut-off
Measured Measured Indicated Indicated Inferred TOTAL
Tonnes
(kt)
Au
(g/t)
Au
(oz)
Tonnes
(kt)
Au
(g/t)
Au
(oz)
Tonnes
(kt)
Au
(g/t)
Au
(oz)
Tonnes
(kt)
Au
(g/t)
Au
(oz)
Steam
Engine
870 1.67 47,000 1,655 1.33 71,000 1,321 1.22 52,000 3,846 1.37 169,000
Eastern
Ridge
214 1.62 11,000 342 1.22 13,000 555 1.37 25,000
TOTAL 870 1.67 47,000 1,869 1.36 82,000 1,663 1.22 65,000 4,400 1.37 194,000
1.0 g/t
cut-off
Measured Indicated
Inferred TOTAL
Steam
Engine
534 2.40 41,000 890 2.04 58,000 679 1.88 41,000 2,103 2.08 141,000
Eastern
Ridge
152 1.98 10,000 143 1.89 9,000 296 1.94 18,000
TOTAL 534 2.40 41,000 1,042 2.03 68,000 822 1.88 50,000 2,400 2.06 159,000

Table 3. 2022 Mineral Resource Estimate for the Steam Engine Gold Project[3]

0.25 g/t
cut-off
Measured Measured Indicated Indicated Inferred TOTAL
Tonnes
(kt)
Au
(g/t)
Au
(oz)
Tonnes
(kt)
Au
(g/t)
Au
(oz)
Tonnes
(kt)
Au
(g/t)
Au
(oz)
Tonnes
(kt)
Au
(g/t)
Au
(oz)
Steam
Engine
670 2.10 45,000 1,260 1.50 59,000 1,650 1.20 62,000 3,580 1.44 166,000
Eastern
Ridge
130 1.90 8,000 160 1.70 9,000 310 1.30 13,000 600 1.56 30,000
TOTAL 800 2.07 53,000 1,420 1.52 68,000 1,960 1.22 75,000 4,180 1.46 196,000
1.0 g/t
cut-off
Measured Indicated
Inferred TOTAL
Steam
Engine
490 2.70 42,000 910 1.80 54,000 950 1.60 49,000 2,350 1.92 145,000
Eastern
Ridge
100 2.20 7,000 110 2.30 8,000 160 2.10 11,000 370 2.19 26,000
TOTAL 590 2.62 49,000 1,020 1.85 62,000 1,110 1.67 60,000 2,720 1.96 171,000

3 Refer ASX announcement “ Material upgrade in Steam Engine Resource to 196,000 oz Au with 80.6% increase to Measured and Indicated categories ”, dated 11 April 2022.

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Steam Engine Project Resource expansion potential

The Mineral Resources that have been estimated for the Project relate mainly to infill drilling over a combined 1.5 kilometres of strike length at the Steam Engine and Eastern Ridge lodes and to a maximum vertical depth of approximately 200 metres.

Exploration work conducted by the Company during 2020 and 2022 has identified several corridors totalling over 10 kilometres in length that have significant lode extension and new lode potential ( Fig. 5 ).

Considering the updated MRE has been developed over only 1.5 kilometres of lode strike, the Company will focus on drill testing the lode extension zones as soon as possible.

Forward plans

Subject to funding, the key objectives for the Project are currently to:

  1. Complete a feasibility study on a mining and toll treatment scenario during Q2 2026;

  2. Establish a maiden Ore Reserve;

  3. Commence an exploration drilling program to further expand the total Mineral Resources; and

  4. Progress regulatory approvals processes for the grant of a mining lease, which include environmental and native title matters.

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Figure 5. Geology plan showing outcropping gold lodes, Steam Engine and Eastern Ridge Resource envelopes and lode extension corridors as supported by soil geochemistry, historic workings or outcropping lodes.

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Summary Resource Estimation and Reporting Criteria

GEOLOGY AND GEOLOGICAL INTERPRETATION

The Steam Engine Gold Deposit is located within the Company’s greater Greenvale Project ( Fig. 1 ) and is hosted within a belt of metamorphosed volcanic and sedimentary rocks of probable Cambro-Ordovician age.

Government mapping over the Greenvale Project area is covered by the Burges and Conjuboy 1:100,000 sheets. The Greenvale Project covers an area predominantly mapped as units of the Lugano Metamorphics and the Cockie Spring Tonalite with areas of Cambro-Ordovician Eland Metavolcanics and Permo-Carboniferous Bally Knob volcanics in the north of the project area.

Rocks to the west of the Greenvale township were originally considered to be an easterly extension of the Cambro-Ordovician volcanic belt that contains the Balcooma VMS deposit. However, the Greenvale Project area differs significantly from the Balcooma VMS area such that it should be considered as a separate geological domain (Lucky Creek Domain) of the Cambro-Ordovician belt.

The Lucky Creek Domain is interpreted to contain metamorphosed primitive mantle-derived intrusions, volcanics and related sediments with low levels of uranium, thorium and lead. It is likely that some of the serpentinised ultramafic rocks of the Greenvale area are part of a sea floor volcano-sedimentary package rather than injected or intruded rocks.

At the Steam Engine Gold Deposit, gold is mineralised within a number of north-northeast trending, westdipping pyritic quartz-muscovite-carbonate schist lodes within metamorphosed intermediate to basic intrusives and metasediments ( Fig. 5 ). The metamorphosed host rocks have been intensely chlorite–epidote altered in the vicinity of the mineralised shear zones.

Additionally, the mineralisation appears loosely associated with intense sericite altered zones with variable silicification and are generally mappable when surface exposure is good. Initial observations are that the effects of sericite alteration together with visible sulphide content may assist in the extraction of the lode zones and to help reduce dilution effects during mining.

The gold mineralisation is associated with a sulphide mineral assemblage comprising pyrite, minor arsenopyrite, pyrrhotite, and chalcopyrite (all fine grained) ( Figs. 6 to 8 ). Gold is mineralised within schistose lodes of which, the Steam Engine Lode is currently the most notable.

The Steam Engine Lode has an outcrop strike length of approximately 500 metres and a further 800 metres that does not crop out at surface has been identified to the north by drill holes. The Eastern Ridge lode is located approximately 500 metres east of the Steam Engine Lode. The Eastern Ridge lode has a surface strike length of approximately 1,400 metres.

The gold mineralisation is interpreted as mesothermal lode type. The Company considers that the gold mineralisation is most similar to the orogenic style.

The gold bearing lodes are developed within shear zones and show strong continuity and a persistent dip to the west. The Steam Engine lode typically dips from 50° to 60° to the West. The Eastern Ridge lode typically dips from 45° to 55° to the West.

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Figure 6. Strongly foliated dolerite with biotite-silica-chlorite-pyrite-arsenopyrite alteration associated with quartz veinlets. Refer to ASX announcement dated 5 November 2020 for additional information on SDD005 exploration results.

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Figure 7. Quartz chlorite schist, chlorite alteration, with trace pyrite-arsenopyrite and a late cross-cutting quartz-carbonate vein. Refer to ASX announcement dated 5 November 2020 for additional information on SDD006 exploration results.

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Figure 8. Strong silica-biotite-pyrite alteration, minor chlorite within a dolerite unit. Refer to ASX announcement dated 5 November 2020 for additional information on SRD001 exploration results.

RESOURCE DRILLING

A total of 317 drill holes for 24,268.88 metres of drilling has been used for this updated Mineral Resource Estimation. Additional historical drilling not utilised includes reconnaissance rotary air-blast ( RAB ) holes and 9 historical RC holes for which sample and assay data was incomplete.

Tables 4 and 5 summarise Resource drilling by lode, drill hole type and by company. About 80% of the drilling used for the Resource estimation was completed by Superior.

The Mineral Resource relates only to parts of the Steam Engine and Eastern Ridge lodes.

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Table 4. Summary of Resource drilling by drill hole type

Deposit Drilling Method Total Metres Number of Holes
Steam Engine DD 2,105.58 15
RC 15,578.30 198
RC/DD 683.10 3
Total 18,366.98 216
Eastern Ridge DD 109.90 3
RC 5,792.00 98
Total 5,901.90 101
Grand Total 24,268.88 317

Table 5. Summary of Resource drilling by company

Deposit Drilling Method Total Metres Number of Holes
Steam Engine Noranda 1,809.78 18
Pioneer 2,475.10 37
Beacon 288 3
Superior 13,794.10 158
Eastern Ridge Noranda 525 8
Pancontinental 100 2
Beacon 126 2
Superior 5,150.90 89
Grand Total 24,268.88 317

COLLAR SURVEYS

Historical collars were originally surveyed onto a local grid system aligned to an azimuth of 017°. The Company has located and re-surveyed most of these collars with differential GPS.

All Superior drill holes were set up using handheld GPS which were then located by a qualified surveyor using DGPS. Collars are recorded in Map Grid Australia 1994 zone 55 coordinates.

Topographic control is currently from DGPS pickups merged with RL adjusted contours.

DOWN-HOLE SURVEYS

Survey methods for historical drill holes are not recorded and most historic RC holes have only a single collar survey in the database. Recent drilling does not show any significant hole path drift and many of the historic holes are less than 100 metres long.

All Superior holes were surveyed using a Reflex Gyro north-seeking gyroscopic instrument to obtain accurate down-hole directional data.

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Figure 9. Reverse Circulation drilling and sampling at the Steam Engine Lode

LOGGING

All drill holes were logged by Terra Search or Pinata geologists having sufficient qualification and experience for the mineralisation style expected and observed at each hole.

All RC drill holes were logged in their entirety at 1 m intervals for the RC drill holes. A spear was used to produce representative samples for the logging of RC holes. RC chip trays were prepared of each RC drill hole. All chip trays were photographed.

Intact entire diamond drill core was used for the logging of the diamond core. The core was also used to record RQD, as well as structural information and geological logging. The core trays were photographed.

SAMPLING AND SUB-SAMPLING TECHNIQUES

Sampling information used in the Resource estimation was derived from both RC and diamond drill holes. Techniques used during various phases of the drilling complied with industry standard procedures. Crosschecking by the Company between the various drilling phases gives consistent results for the different areas drilled.

RC Drill Hole Samples

  • a) Historical

Sampling methodologies are not recorded for all historical RC drill holes. Diamond core holes were sampled by sawing core in half down the core axis on nominal 1m intervals that were adjusted for changes in geology where necessary.

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  • b) Superior

RC Drilling was conducted by AED (Associated Exploration Drillers) using UDR 650, McCulloch’s DR 950, or SCHRAMM 660 drilling rig using a 5.5 inch drill bit. Additional to the on-board air compressor of the drilling rig being used, additional compressed air was available as necessary via a separate booster truck. Sampling was by using a face-sampling hammer bit. Sub-samples were collected from a riffle splitter attached to the drill rig cyclone and collected over 1m intervals. Approximately 1-3 kg of material was collected for every sub-sample and sent for assaying.

Diamond drilling was conducted by AED using a UDR650, or McCulloch’s DR 950 drilling rig and NQ drill rods and wireline to retrieve core. Drill core was oriented to allow structural measurements. Deeper drill holes were pre-collared using RC Drilling methods outlined above. Diamond core drill samples were collected by quartering of NQ core. Approximately 1 to 1.5 kg of sample was collected over each one metre interval used for assaying.

Drill bit sizes used in the drilling were consistent in size and are considered appropriate to indicate the degree and extent of mineralisation.

Diamond Core Samples

For all companies core was sub-sampled by cutting core in half longitudinally using a core saw. Samples were nominally 1m in length, with breaks on the main geological contacts (mostly barren dyke contacts). For any QC field duplicate samples the half core was re-cut into two quarter-core pieces.

SAMPLE ANALYSIS

All Superior’s samples were submitted to Intertek (2021) or SGS laboratories (2020 and 2024) in Townsville for gold analysis. Mineralised samples were also submitted for multi-element assaying. Samples were crushed, pulverised to ensure a minimum of 85% pulp material passing through 75 microns, then analysed for gold by fire assay method FA50/OE04 (Intertek in 2021) or GO_FA50V10 (SGS in 2020) using a 50-gram sample.

Multi-element analyses used a four-acid digest followed by an OES finish using method 4A/OE33 (Intertek in 2021) or ICPAES finish using method GO_ICP41Q100 (SGS in 2020). The following 33 elements: Ag, Al, As, Ba, Bi, Ca, Cd, Ce, Co, Cr, Cu, Fe, K, La, Li, Mg, Mn, Mo, Na, Ni, P, Pb, S, Sb, Sc, Sn, Sr, Te, Ti, Tl, V, W, Zn were assayed for in 2021 and the following 38 elements: Ag, Al, As, Ba, Be, Bi, Ca, Cd, Ce, Co, Cr, Cu, Fe, K, La, Li, Mg, Mn, Mo, Na, Ni, P, Pb, S, Sb, Sc, Se, Sn, Sr, Te, Th, Ti, U, V, W, Y, Zn, Zr were assayed in 2020.

DRY BULK DENSITY

Measurements of specific gravity were taken by ALS laboratories on drill core composite samples from Superior’s drilling in 2020, using the Archimedian water immersion method. In total 14 samples were tested including fresh and partially oxidised examples of mineralised and unmineralised material. Due to the shallow nature of the top of fresh rock surface there was only limited opportunity to sample partially oxidised rock. Results are summarised in Table 6 , with data indicating SG’s of 2.9 t/m3 and 2.7 t/m3 for fresh and oxidised mineralised material respectively and SG’s of 3.0 t/m3 and 2.8 t/m3 for fresh and oxidised waste material.

The Competent Person considers that there are too few specific gravity measurements obtained so far to provide a good indication of the likely variability in densities of mineralised and waste material. The average specific gravity measurements are consistent with descriptions of the mineralogy/geology of rocks in the Project, but further measurements should be completed to provide more confidence in the results.

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Table 6. Specific Gravity Measurements by Material Type

Material Type Hole From
(m)
To
(m)
Interval
(m)
Au
(g/t)
Lode SG
t/m3
Mineralised Oxidised SDD006 21 27 6 1.71 Steam Engine 2.86
SDD002 13 16 3 1.77 Eastern Ridge 2.54
Fresh SDD004 57 60 3 0.99 Steam Engine 2.90
SDD005 42 48 6 2.09 Steam Engine 2.99
SRD001 133 141 8 2.46 Steam Engine 2.94
SRD002 195 200 5 1.98 Steam Engine 2.83
SDD001 29 33 4 1.44 Eastern Ridge 2.89
SDD003 22 26 4 1.81 Eastern Ridge 2.77
Unmineralised Oxidised SDD006 16 19 3 - Steam Engine 3.05
SDD001 17 20 3 - Eastern Ridge 2.74
SDD003 12 15 3 - Eastern Ridge 2.60
Fresh SDD004 33 36 3 - Steam Engine 3.05
SDD005 38 41 3 0.09 Steam Engine 2.97
SRD001 112 115 3 0.01 Steam Engine 3.06

QA/QC

Certified reference materials supplied by commercial manufacturers (CRM’s) were inserted into the sampling sequence, which included various ore grades and some blank quartz pulps. Based on the results of QC sample analysis, in addition to the internal QA/QC standards, repeats and blanks run by the laboratory, the laboratory was deemed to provide an acceptable level of accuracy and precision.

Field duplicates were collected directly at the rigs from a second chute on a riffle splitter. Analysis of the results indicates levels of precision typical for shear-hosted gold deposits with an average relative difference between duplicate pairs of 10%.

METALLURGICAL TEST WORK

Preliminary metallurgical leach test work was undertaken in October and November 2020 by ALS Laboratories to confirm the amenability of the ore to conventional CIP / CIL leaching. Six representative sample composites were generated from mineralised material from the Steam Engine and Eastern Ridge lodes.

Testing parameters were as follows:

  • Grind size of P80 (80% passing size of 75 microns);

  • Sodium cyanide dosage of 1.5 kg/t, density of 40% solids, pH of 10 to 10.5, with dissolved oxygen at 15 ppm to 20 ppm; and

  • Run time of 48 hours with a sample taken after 24 hours to assist in understanding leach kinetics.

Results for the Eastern Ridge samples (5223045 and 5223046) were excellent with 97% and 98% gold recoveries respectively, and with virtually all of this extracted after 24 hours.

Results for the Steam Engine lodes were lower, with the average grade samples (5223044, 5223042 and 5223043) having recoveries of 84%, 80% and 73% respectively.

At this stage, no additional test work has been undertaken to investigate options to improve gold recovery in the Steam Engine Lode samples.

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MINERAL RESOURCE ESTIMATION

Geological Interpretation

The Steam Engine Gold Project hosts mesothermal orogenic style lode-gold deposits associated with quartzsulphide alteration within strongly foliated shear zones hosted by metabasalt (Steam Engine Lodes) and metasediment/metadiorite (Eastern Ridge lodes). Lodes strike on average to 030° at Steam Engine and 022° at Eastern Ridge, although there is some variation in strike along their length. Both lode systems dip to the northwest at around 55°- 60°.

Oxidised to partially oxidised material occurs to an average depth of around 15 m over both Steam Engine and Eastern Ridge.

Estimation Domains

Estimation domains were defined using lower cut-off grades of 0.25 – 0.3 g/t Au for the Steam Engine and Eastern Ridge lodes, with this value selected as a natural break in the global distribution of gold grades on lognormal probability plots. An upper break at around 1 g/t Au was apparent at the Steam Engine Main Lode and was used to define a continuous domain that was flanked by lower grade material. A similar subtle break at 1 g/t Au at the Eastern Ridge Lode was apparent but the resulting domain was considered too small and with less confident spatial continuity to be created separately.

Models were generated in Leapfrog Geo software as “Vein” models, defined as zones where there is a single simple structure with distinct hangingwall and footwall contacts. Vein intersections were manually selected and coded to ensure continuity. Models were allowed to ‘pinch out’ to zero thickness where drillholes along the central trend of the vein model did not contain any grade. At depth and along strike where there were no controlling holes the vein models were clipped using a polyline representing a maximum distance of approximately 25m from the nearest drill hole.

The Steam Engine Lode system is modelled as four estimation domains ( Fig. 10 ). The Main domain is the most continuous and comprises a high-grade zone of >1 g/t Au within a mostly broader lower grade (0.3 – 1 g/t Au) halo. The lower grade zone may either be on the hangingwall or footwall side of the high grade zone or absent altogether. A footwall zone at the southern end and a hangingwall zone at the northern end of the Main zone are both of lower grade and shorter strike extent than of the Main zone.

The Eastern Ridge Lode system comprises two separate veins slightly offset from one another separated by a short gap, named the North and South lodes. The North lode is higher grade than the South lode and contains two north-plunging higher grade and slightly thicker ‘shoots’.

Dimensions

Identified mineralisation at the Steam Engine Gold Project is contained within two lode systems approximately 600 metres apart. The Steam Engine Lodes are modelled over a total strike length of 810 metres to a maximum down-dip extent of 275 metres (240 m vertical depth). True width of the Main lode varies from 1 metre to 20 metres with an average of 6.5 metres. Hangingwall and Footwall lodes have a strike extent of 185 metres and 115 metres respectively.

The Eastern Ridge Lodes are modelled over 600 metres along strike to a maximum down-dip extent of 120 metres (100m vertical depth). True width of the North and South lodes varies from <1 metre to 10 metres with an average of 3.5 metres.

The Project database covers drilling that extends beyond the limits of the two modelled lode systems with additional zones of mostly narrow mineralisation that are not included in this Resource estimate.

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Drill Hole Spacing

Surface drill hole spacing is variable over the Resource area, with some parts of the Steam Engine Lode system sampled to approximately 10 metre spacing. The maximum drill spacing is 25 metres to 30 metres in the deeper intersections of Steam Engine and Eastern Ridge.

Drill density is adequate to establish geological and grade continuity of the mineralisation at a confidence level that supports at least Inferred Resource classification.

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Figure 10. Plan view of Estimation Domains used for the Mineral Resource Estimation process.

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Grade Capping

Capping is the process of reducing the grade of an outlier sample to a value that is representative of the surrounding grade distribution. Reducing the value of an outlier sample grade minimises the overestimation of adjacent blocks in the vicinity of that value. The datasets were assessed for extreme outliers, defined as values beyond the expected range of the sample distribution. Three extreme outlier values were discovered, two in the Steam Engine Main High Grade domain and one in the Eastern Ridge North domain. Composite statistics were analysed to determine if grade capping was necessary to reduce the influence of expected outliers on the estimation.

Histograms, log probability plots, interquartile ranges, standard deviations and metal loss are assessed when selecting a grade cap.

Two extreme outlier values in Steam Engine Main High Grade domain were included in the capping analysis, but due to the high number of other data points there was minimal effect on the domain mean grade. The Eastern Ridge North domain has a single very high-grade outlier sample of 115.25 g/t Au, over-influencing the mean and CV statistics. Usual grade capping techniques would apply a top cut to this sample that would largely remove its influence on the global domain estimate at the expense of an extreme reduction in the grade in the local area of the sample. It was decided to create a-top cut value of 40 g/t Au but use an additional spatial restriction of 50 metres to ensure that the outlier had only a localised influence on the estimate.

GRADE ESTIMATION

Ordinary Kriging was used to estimate grades into parent blocks. Results of the kriging estimation were validated against raw informing data and estimates by Nearest Neighbour and Inverse Distance weighting methods. The kriged estimate used a 2 x 10 x 5 discretisation (XYZ), giving discretisation nodes spaced evenly (within the limits of the software) within the block.

Block Modelling

Separate 3D models were created for the Steam Engine and Eastern Ridge lode systems, due to the difference in strike orientation. Both models were created in MGA coordinates with differently rotated Y axes (where Y is parallel to the average strike of the lodes). Block sizes were the same for both models: 2.5 m (X), 10 m (Y) and 5 m (Z), based on average sample spacing and lode dimensions. Sub-blocking to 0.625 m (X), 1.25 m (Y) and 1.25 m (Z) was set to ensure volumes were accurately represented.

Interpreted mineralised lodes were coded to the block models. Sufficient variables were added to allow grade estimation, Mineral Resource classification, and reporting. Blocks above the original topography were coded as air and not estimated.

Informing Data and Search Parameters

The estimation uses a two-pass strategy, with the first pass using a search radius of 30 metres to 50 metres (depending on estimation domain) with anisotropic ratios of about 1.6-2 and 7-11 respectively for the major/semi major and the major/minor ratio. Search distances were doubled in pass two. Search distances were guided by variogram ranges. Informing samples permitted were between a minimum of 5 and 8, and a maximum of between 15 and 30 composites (domain dependent). No limit was set on the maximum number of samples per hole.

MODEL VALIDATION

The block model was validated by visual and statistical comparison of drill hole and block grades and through grade-tonnage analysis. Initial comparisons occurred visually on screen, using extracted composite samples and

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the block model. Further validation used swath plots to compare block estimates with informing sample statistics along parallel sections through the deposits.

Global Validation

The modelled block volumes were compared to mineralisation wireframe volumes for each domain, to ensure the chosen sub-blocks are sufficient to define the volumes. Block model volumes and wireframe volumes reconcile well.

A comparison of global mean values within the grade domains shows a reasonably close relationship between composites and block model values. The comparison of composite and block grade means would normally be expected to show the composite mean being slightly higher than the block grade mean, although it should be noted that clustering effects also influence the degree of difference.

Alternative Estimation Methods

Alternative estimation methods, Nearest Neighbour and Inverse Distance Squared ( ID2 ), were utilised to ensure the kriged estimates ( OK ) were not reporting a global bias. The alternate estimates provided expected correlations across various cut-off grades ( Figs. 11 and 12 ). Nearest Neighbour shows less tonnes and higher grade (less contained metal) as it does not employ averaging techniques to assign the block grade, with distal blocks being informed by a single closest sample rather than several weighted samples.

The ID2 estimate is closer to kriging as it uses averaging weighted by distance but cannot assign anisotropy, nor can it de-cluster the input data or account for nugget effect. Using the kriging algorithm provides a more reliable, albeit smoother estimate due to the ability of kriging to de-cluster data and weight the samples based on a variogram (which incorporates the nugget effect and anisotropy).

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Figure 11. Grade-tonnage curve comparisons of Ordinary Kriging, Nearest Neighbour and Inverse Distance Squared estimates, Steam Engine Lode.

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Figure 12. Grade-tonnage curve comparisons of Ordinary Kriging, Nearest Neighbour and Inverse Distance Squared estimates, Eastern Ridge Lode.

FINALISED BLOCK MODEL

The final estimated block model of the Steam Engine and Eastern Ridge lodes is shown in isometric view ( Fig. 13 ) and plan view ( Fig. 14 ). The isometric view shows only the high grade ‘main zone’ of the Steam Engine and Eastern Ridge lodes in order to highlight the distribution of higher grades without the low-grade halo obscuring the internal blocks.

Cross-sections through each of the lodes are also shown ( Figs. 15 to 18 ).

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Figure 13. Isometric view of the Steam Engine and Eastern Ridge lodes, looking southeast. Only blocks >0.5 g/t Au shown.

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Figure 14. Plan view of the Steam Engine and Eastern Ridge lodes. Location of cross-sections set out in Figures 15 to 18 are also shown.

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Figure 15. Steam Engine Lode block model cross-section through A-B.

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Figure 16. Steam Engine Lode block model cross-section through C-D.

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Figure 17. Steam Engine Lode block model cross-section through E-F.

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Figure 18. Eastern Ridge Lode block model cross-section through G-H.

REASONABLE PROSPECTS FOR EVENTUAL ECONOMIC EXTRACTION

A Scoping Study for the Steam Engine project was reported in September 2024[4] , based on the 2022 Resource model and with a gold price assumption of A$3,250/oz. Two scenarios were assessed: off-site toll treatment (1 g/t cut-off) and a stand-alone on-site processing plant (0.25 g/t cut-off). Both options returned positive NPVs that were similar in value, with toll treatment producing a considerably higher IRR and lower payback period.

Given that the current gold price is approximately double the scoping study value, it can be assumed that most of the material at both reported cut-offs has reasonable prospects for economic extraction.

The reported Resource has been restricted to a depth of 200 m below surface, which is intended to approximate a likely maximum pit limit based on a strip ratio of 10:1. However, a pit optimisation has not been undertaken on the current Resource estimate.

4 Refer ASX announcement “ Positive Steam Engine Gold Scoping Study: Robust economics for Toll Treatment and StandAlone Plant scenarios ”, dated 16 September 2024.

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MINERAL RESOURCE CLASSIFICATION

The Mineral Resource Estimates were classified in accordance with JORC 2012. The Resources are classified based on data quality, drill density, number of informing samples, kriging efficiency, average distance to informing samples and vein consistency (geological continuity). Geological continuity has been demonstrated at 25 metre grid spacing over the entire strike of the deposits. Areas of high grade or geological complexity have been infilled to 10 m grid centres.

Areas drilled at the highest density within the Steam Engine Lodes at less than 15 metre average drill spacing have high confidence kriging statistics and are classified as Measured.

Blocks informed by an average sample spacing between 15 metres and 20-25 metres are classified as Indicated and kriging statistics indicate lower confidence.

Remaining areas are classified as Inferred, except for a small part of the Steam Engine Lode below a depth of 200 metres, which is considered not to meet the criteria of RPEEE and is Unclassified.

A Mineral Resource is not an Ore Reserve and does not have demonstrated economic viability. Only limited historic artisanal mining has occurred on the property and no correction has been applied for loss through mining depletion, although it is of negligible impact.

MATERIAL MODIFYING FACTORS CONSIDERED

The Steam Engine Gold Project deposits are moderate to steeply dipping mesothermal orogenic style gold deposits associated with quartz-sulphide veining and alteration hosted by an altered and strongly foliated shear zone in metabasalt and metasediments. The Company foresees mining via open pit, likely to have a moderate strip ratio (less than 12:1) due to the linear near vertical nature of the deposit, with conventional grinding and leach recovery. The Competent Person notes that this is a reasonable assumption for the assessment of Resources.

The Steam Engine mineralisation has been shown to be amenable to direct cyanidation for gold extraction. Limited metallurgical work shows moderate recovery differences between the Steam Engine and Eastern Ridge lodes. Steam Engine recoveries average around 80% and Eastern Ridge 97%, with further test work required to investigate the potential for increasing recoveries at the Steam Engine Lode.

Mineral processing and metallurgical recoveries of gold are considered when determining reasonable prospects for eventual economic extraction, but metallurgical recoveries do not have a significant impact on the Mineral Resource Estimate and have not been applied to the in-situ grades.

Mineralisation below a depth of 200 m is not considered economic at this stage of the Project, although the Steam Engine lodes remain open down plunge. The current Mineral Resource does not include any dilution or ore loss associated with practical mining constraints. No other mining assumptions have been used in the estimation of the Mineral Resource.

AUTHORISED FOR RELEASE BY THE BOARD OF SUPERIOR RESOURCES LIMITED

For more information:

Peter Hwang Managing Director www.superiorresources.com.au Tel: +61 7 3847 2887 [email protected]

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About Superior Resources

Superior Resources Limited (ASX:SPQ) is an Australian public company exploring for large lead-zinc-silver, copper, gold and nickel-copper-cobalt-PGE deposits in northern Queensland which have the potential to return maximum value growth for shareholders. The Company is focused on multiple Tier-1 equivalent exploration targets and has a dominant position within the Carpentaria Zinc Province in NW Qld and Ordovician rock belts in NE Qld considered to be equivalents of the NSW Macquarie Arc. For more information, please visit our website at www.superiorresources.com.au .

Reporting of Mineral Resources: Information contained in this report that relates to Mineral Resources is based on information compiled by Mr Ian Taylor, an employee of Mining Associates, who is a Chartered Professional and Fellow of the Australasian Institute of Mining and Metallurgy. Mr Taylor has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Mr Taylor consents to the inclusion in this report of the matters based on his information in the form and context in which it appears.

Reliance on previously reported information: In respect of references contained in this report to previously reported Exploration Results or Mineral Resources, Superior confirms that it is not aware of any new information or data that materially affects the information, results or conclusions contained in the original reported document. In respect of previously reported Mineral Resource estimates, apart from additional data that has been used in the current 2025 MRE Update, the subject of this report, all originally reported material assumptions and technical parameters underpinning the estimates continue to apply and have not been materially changed or qualified. The form and context in which the relevant Competent Person’s findings are presented have not been materially modified from the original document.

Forward looking statements: This document may contain forward looking statements. Forward looking statements are often, but not always, identified by the use of words such as “seek”, “indicate”, “target”, “anticipate”, “forecast”, “believe”, “plan”, “estimate”, “expect” and “intend” and statements that an event or result “may”, “will”, “should”, “could” or “might” occur or be achieved and other similar expressions. Indications of, and interpretations on, future expected exploration results or technical outcomes, production, earnings, financial position and performance are also forward-looking statements. The forward-looking statements in this presentation are based on current interpretations, expectations, estimates, assumptions, forecasts and projections about Superior, Superior’s projects and assets and the industry in which it operates as well as other factors that management believes to be relevant and reasonable in the circumstances at the date that such statements are made. The forward-looking statements are subject to technical, business, economic, competitive, political and social uncertainties and contingencies and may involve known and unknown risks and uncertainties. The forward-looking statements may prove to be incorrect. Many known and unknown factors could cause actual events or results to differ materially from the estimated or anticipated events or results expressed or implied by any forward-looking statements. All forward-looking statements made in this presentation are qualified by the foregoing cautionary statements.

Disclaimer: Superior and its related bodies corporate, any of their directors, officers, employees, agents or contractors do not make any representation or warranty (either express or implied) as to the accuracy, correctness, completeness, adequacy, reliability or likelihood of fulfilment of any forward-looking statement, or any events or results expressed or implied in any forward-looking statement, except to the extent required by law. Superior and its related bodies corporate and each of their respective directors, officers, employees, agents and contractors disclaims, to the maximum extent permitted by law, all liability and responsibility for any direct or indirect loss or damage which may be suffered by any person (including because of fault or negligence or otherwise) through use or reliance on anything contained in or omitted from this presentation. Other than as required by law and the ASX Listing Rules, Superior disclaims any duty to update forward looking statements to reflect new developments.

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APPENDIX 1

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 (e.g. cut channels, random No new work is reported in this release.
techniques chips, or specific specialised industry standard measurement
tools appropriate to the minerals under investigation, such as
down hole gamma sondes, or handheld XRF instruments, etc.).
These examples should not be taken as limiting the broad
meaning of sampling.

Current Sampling

Reverse Circulation (RC) drill samples are collected as drilled via a riffle splitter
attached to the drill rig cyclone and collected as 1m riffle split samples. Approximately
1-3kg of sample was collected over each 1m interval used for assaying.
Include reference to measures taken to ensure sample
representivity and the appropriate calibration of any
measurement tools or systems used.
Diamond core drill samples are collected by quartering of the NQ core from Diamond
drilling. Approximately 1 to 1.5 kg of sample was collected over each one metre
interval used for assaying.
Aspects of the determination of mineralisation that are Drill bit sizes used in the drilling were consistent in size (5.5”) and are considered
Material to the Public Report. appropriate to indicate the degree and extent of mineralisation.
In cases where ‘industry standard’ work has been done this 1m representative samples from RC and DD were pulverised to produce a 50 gram
would be relatively simple (e.g. ‘reverse circulation drilling was charge for fire assay for gold.
used to obtain 1 m samples from which 3 kg was pulverised to
produce a 30 g charge for fire assay’). In other cases more
explanation may be required, such as where there is coarse
Samples of the gold mineralisation were also submitted for multi-element assaying
using a four-acid digest and ICP finish.
gold that has inherent sampling problems. Unusual Historic Sampling (pre-2017)
commodities or mineralisation types (e.g. submarine nodules) Information relating to historic results relies on data contained in reports submitted to
may warrant disclosure of detailed information. the Queensland Department of Natural Resources and Mines as part of the Company
Report System attaching to granted Exploration Permits.
The sampling techniques, where reported, used standard industry approaches. These
include: 1. splitting off a sample of material delivered to the top of the hole during RC
drilling to produce a sample for assay accompanied by geological logging of the
sample. 2. Halving of drill core from diamond drilling to produce an assay sample
accompanied by geological logging of the core.

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Criteria JORC Code explanation Commentary Commentary
Assaying of samples was completed by commercial laboratory methods that were
appropriate at the time the samples were collected. Sample intervals of 4m were
commonly used for initial determination of the presence of gold by a geochemical
method followed by more detailed sampling of mineralised intervals at usually 1m
intervals using a more precise method.
Whilst it is not possible to determine the reliability of historic assay results, no issues
arose during compilation and interpretation of the results that would suggest that the
assay results were not reasonable. Additional to this, the recent sampling and assaying
completed during 2020 and 2021 by Superior shows that the various previous drilling
phases have given consistently similar results when compared to those of the more
recent sampling.
Drilling Drill type (e.g. core, reverse circulation, open-hole hammer, No new work is reported in this release.
techniques rotary air blast, auger, Bangka, sonic, etc.) and details (e.g.
core diameter, triple or standard tube, depth of diamond tails,
face-sampling bit or other type, whether core is oriented and if
so, by what method, etc.).

Current Drilling

Drilling from surface was performed using standard RC and diamond core drilling
techniques as applicable to the hole drilled.
RC Drilling was conducted by AED (Associated Exploration Drillers). Different rigs (UDR
650, McCulloch’s DR 950, and Schramm 660 drilling rig) were used over several
different programs but all used a 5.5 inch drill bit. Additional to the on-board air
compressor of the drilling rig being used, additional compressed air was available as
necessary via a separate booster truck. Sampling was by the use of a face-sampling
hammer bit.
Diamond drilling was conducted by AED (Associated Exploration Drillers) using a UDR
650 or McCulloch’s DR 950 drilling rig and NQ drill rods and wireline to retrieve the
core. Drill core was oriented to allow structural measurements. The deeper drill holes
were first pre-collared using the RC Drilling methods outlined above.
All holes were surveyed using a Reflex Gyro north-seeking gyroscopic instrument to
obtain accurate down-hole directional data.
Historic Drilling
RC and diamond drilling are the only drilling techniques relied on in the historical
drilling. Historical open hole percussion and RAB holes have only been used in terms of
constrainingthe extent of the mineralisation,where applicable,and not for any

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Criteria JORC Code explanation Commentary Commentary
estimation purposes (Note: Where recent drilling is available this has been used
instead of historical open hole percussion and/or RAB holes in determining the extents
of the mineralisation).
Drill sample Method of recording and assessing core and chip sample No new work is reported in this release.
recovery recoveries and results assessed.
Measures taken to maximise sample recovery and ensure
representative nature of the samples.
Current Drilling

Sample recovery was visually estimated by contract logging geologists.
Whether a relationship exists between sample recovery and The volume of sample collected for assay is considered to be representative of each
grade and whether sample bias may have occurred due to 1m interval.
preferential loss/gain of fine/coarse material. RC drill rod string delivered the sample to the rig-mounted cyclone which is sealed at
the completion of each 1m interval. The riffle splitter is cleaned with compressed air at
the end of each 1m interval and at the completion of each drill hole.
For diamond core drilling a wireline was used to retrieve core samples that are then
placed in core trays.
No relationship is evident between sample recovery and grade.
Historic Drilling
Recoveries for the historic RC drill holes were not recorded.
Recoveries for historic diamond drill core samples were recorded for most holes drilled
at Steam Engine. These recoveries were usually of the order of 100% indicating that
recoveries should not be an issue if the results are used for estimating resources.
No relationship is evident between sample recovery and grade.
Logging Whether core and chip samples have been geologically and No new work is reported in this release.
geotechnically logged to a level of detail to support
appropriate Mineral Resource estimation, mining studies and
metallurgical studies.
Whether logging is qualitative or quantitative in nature. Core
(or costean, channel, etc.) photography.
Current Drilling

Geological logging was conducted during the drilling of each hole by a Pinata or Terra
Search geologist having sufficient qualification and experience for the mineralisation
style expected and observed at each hole.
The total length and percentage of the relevant intersections All holes were logged in their entirety at 1m intervals for the RC drill holes. A spear
logged. was used to produce representative samples for the logging of RC holes.
Intact entire diamond drill hole core was use for the loggingof diamond core. The core

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Criteria JORC Code explanation Commentary Commentary
was used to record RQD, as well as structural information and the geological logging.
All logging data is digitally compiled and validated before entry into the Superior
database.
The level of logging detail is considered appropriate for resource drilling.
The RC chip trays and diamond core trays were all photographed.
Historic Drilling
Geological logging of most of the historic drill holes is available in the Company Report
System. Logs for holes drilled at the infill 25m sections have not been located at this
stage. The available logging is of a good standard. No geotechnical logs have been
reported and it is assumed that these were not done. Diamond drill hole logs usually
include structural data that has been compiled in digital form.
The logging is generally of a qualitative nature. No core or chip photography is
available in the reports.
Available logging of all material has been completed.
Sub-sampling If core, whether cut or sawn and whether quarter, half or all No new work is reported in this release.
techniques
and sample
preparation
core taken.
If non-core, whether riffled, tube sampled, rotary split, etc.
and whether sampled wet or dry.
For all sample types, the nature, quality and appropriateness
Current Sampling

The sample collection methodology is considered appropriate for RC and diamond
core drilling and was conducted in accordance with standard industry practice.
of the sample preparation technique. RC drill hole samples are split with a riffle splitter at 1m intervals as drilled. Split 1
Quality control procedures adopted for all sub-sampling metre samples are regarded as reliable and representative. Approximately 1-3kg of
stages to maximise representivity of samples. sample was collected over each 1m interval. Samples were collected as dry samples.
Measures taken to ensure that the sampling is representative For 2020-21 drilling, field duplicate samples were collected and assayed at a rate of at
of the in situ material collected, including for instance results least one sample in each batch processed. Due to miscommunication, there were no
for field duplicate/second-half sampling. field duplicate samples collected during the 2024 drilling program.
Whether sample sizes are appropriate to the grain size of the Analysis of RC field duplicate samples showed no indication of bias and a level of assay
material being sampled. variability typical for orogenic-style gold mineralisation.
Diamond core drill hole samples were collected from quartered core over 1 metre
intervals. Approximately 1 to 1.5 kg of sample was collected over each one metre
interval used for assaying.Quartered NQcore samples are regarded as reliable and

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Criteria JORC Code explanation Commentary Commentary
representative. Samples were collected as dry samples.
The sample sizes are considered appropriate to the style of mineralisation being
assessed.
Historic Sampling
The diamond drill core hole samples were collected from halved core obtained from
sawing.
Details of the approach taken for sampling of RC drill holes are not available, but it is
expected to be of industry standard for the time.
Quality of The nature, quality and appropriateness of the assaying and No new work is reported in this release.
assay data and
laboratory
tests

laboratory procedures used and whether the technique is
considered partial or total.
For geophysical tools, spectrometers, handheld XRF
instruments, etc., the parameters used in determining the
analysis including instrument make and model, reading times,
calibrations factors applied and their derivation, etc.
Current Assaying

All samples were submitted to a reputable laboratory for the gold assays (ALS in 2017,
Intertek in 2021 and 2024, and SGS laboratories in 2020, 2022 and 2024). Samples of
the gold mineralisation were also submitted for multi-element assaying using a four-
acid digest.
Nature of quality control procedures adopted (e.g. standards, Samples were crushed, pulverised to ensure a minimum of 85% pulp material passing
blanks, duplicates, external laboratory checks) and whether through 75 microns, then analysed for gold by fire assay method FA50/OE04 (Intertek
acceptable levels of accuracy (i.e. lack of bias) and precision in 2021) or GO_FA50V10 (SGS in 2020) using a 50-gram sample.
have been established. Multi-element analyses were conducted on the gold mineralisation using a four acid
digestion followed by an OES finish using method 4A/OE33 (Intertek in 2021) or ICP-
AES finish using method GO_ICP41Q100 (SGS in 2020 and 2024). The following 33
elements: Ag, Al, As, Ba, Bi, Ca, Cd, Ce, Co, Cr, Cu, Fe, K, La, Li, Mg, Mn, Mo, Na, Ni, P,
Pb, S, Sb, Sc, Sn, Sr, Te, Ti, Tl, V, W, Zn were assayed for in 2021 and the following 38
elements: Ag, Al, As, Ba, Be, Bi, Ca, Cd, Ce, Co, Cr, Cu, Fe, K, La, Li, Mg, Mn, Mo, Na, Ni,
P, Pb, S, Sb, Sc, Se, Sn, Sr, Te, Th, Ti, U, V, W, Y, Zn, Zr were assayed in 2020.
Certified gold, multi-element standards and blanks were included in the samples
submitted to the laboratories for QAQC. Laboratory assay results for these quality
control samples are within 5% of accepted values.
During the 2024 program, some quality control issues were identified from check
assaying of standards. This required the re-assay of mineralised zones for Au to assure
qualitycontrol. The re-assayed resultspassedqualitycontrolQAQC,and whilst not

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Criteria JORC Code explanation Commentary Commentary
varying considerably from the original assays assured confidence in the reported
results. The re-assaying was conducted by Intertek Australia Laboratories (Townsville)
using a 50-gram sample by method FA50/OE04 for Au.
Additionally, the laboratories used a series of their own standards, blanks, and
duplicates for internal quality control.
Historic Assaying
Sampling and assaying techniques used during various phases of the previous drilling
were done by commercial laboratories using industry standard procedures used at the
time of drilling.
Assay data reviewed within the historic reports include some duplicate assaying. It is
unknown in detail what other quality control procedures were adopted.
The recent sampling and assaying completed in 2020 and 2021 by Superior shows that
the various historical drilling phases show consistent results when compared to those
from the recent drilling.
Verification of The verification of significant intersections by either No new work is reported in this release.
sampling and
assaying
independent or alternative company personnel.
The use of twinned holes.
Documentation of primary data, data entry procedures, data
verification, data storage (physical and electronic) protocols.
Current Drilling

The reported significant intersections have been verified by Pinata or Terra Search and
Superior geologists against the representative drill chips and diamond drill core
collected and the drill logs.
Discuss any adjustment to assay data.
No Superior holes were twinned.
Logs were recorded by Pinata or Terra Search field geologists on hard copy sampling
sheets which were entered into spreadsheets for merging into a central database.
Laboratory assay files were merged directly into the database.
The data is routinely validated when loading into the database.
No adjustments to assay data were undertaken.
Historic Drilling
Close spaced recent drilling by Superior Resources (2020 and 2021) to the historic drill
holes confirms the order of the drill gold intersections obtained by the historic drilling.

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Criteria JORC Code explanation Commentary Commentary
To date, no dedicated twinned holes have been drilled by Superior on the historic drill
holes, however very close spaced recent drill holes to the historic drilling has resulted
in very similar results both in terms of widths and grades and there is no difference in
overall grade statistics between historical and current drilling.
Most of the historic drill hole data was captured and stored on paper. The compilation
of that data in digital form has been completed by Superior.
No adjustments have been made to historic sample assay data as there was no
apparent reason for such adjustment.
A total of six (6) historical RC drill holes were excluded from use in this resource
estimate due to gaps in sampling arising from incomplete reporting of composite
intersections in historical reports. All holes were from an area of the deposit well
drilled by Superior.
Location of Accuracy and quality of surveys used to locate drill holes No new work is reported in this release.
data points (collar and down-hole surveys), trenches, mine workings and
other locations used in Mineral Resource estimation.
Specification of the grid system used.
Quality and adequacy of topographic control.
Current Drilling

Drill hole collars have been recorded in the field using handheld GPS with three metre
or better accuracy. The locations have also been further defined using DGPS to give
sub one metre accuracy.
The drill hole spacing and drilling technique are appropriate to establish the degree of
geological and grade continuity for the Mineral Resource estimation procedures that
have been applied. The gold mineralised system remains open and further infill, depth
and strike extension drilling is required to confirm the full extent of the ore bodies.
All collars are recorded in Map Grid Australia 1994 Zone 55 coordinates.
Topographic control is currently from DGPS pickup that has been merged with RL
adjusted contours.
Historical Drilling
Noranda Australia (and subsidiaries) controlled exploration of the Steam Engine area
using a local grid. As the property was advanced, a surveyor was used to provide a
more accurate local grid control with a local height datum being implemented. Their
data has been originally compiled using the local grid coordinates.

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Criteria JORC Code explanation Commentary Commentary
Drill holes completed by Beacon Minerals Limited were reported using handheld GPS
collar coordinates with a likely accuracy of about ± 5m. An accurate translation from
GPS coordinates to local grid coordinates has been used to convert the Beacon drill
hole data to local coordinates.
Many of the historic drill hole collars are still evident at the prospect. Superior
completed surveying of most of the previous drill hole collars using a DGPS system.
The DGPS surveying validates the accuracy of Noranda’s reported collar locations and
provided an additional level of location confidence to the historic drill hole data.
Data spacing Data spacing for reporting of Exploration Results. No new work is reported in this release.
and Whether the data spacing and distribution is sufficient to Drill hole spacing is variable over the Resource area, with some parts of the Steam
distribution establish the degree of geological and grade continuity Engine Lode system samples to approximately 10m spacing. The maximum drill
appropriate for the Mineral Resource and Ore Reserve spacing is 25m to 30m in the deeper sections of the lodes.
estimation procedure(s) and classifications applied.
Whether sample compositing has been applied.
Drill density is adequate to establish geological and grade continuity of the
mineralisation at a confidence level that supports at least Inferred resource
classification.
Orientation of Whether the orientation of sampling achieves unbiased Almost all drilling has been oriented near-perpendicular to the strike of mineralisation
data in sampling of possible structures and the extent to which this is and intersection angles are generally around 60°.
relation to
geological
known, considering the deposit type.
If the relationship between the drilling orientation and the
No sampling bias is considered to have been introduced from drill orientation.
structure orientation of key mineralised structures is considered to have
introduced a sampling bias, this should be assessed and
reported if material.
Sample The measures taken to ensure sample security. No new work is reported in this release.
security For Superior’s sampling programs, sub-samples selected for assaying from RC and
diamond core were collected in heavy-duty polyweave bags which were immediately
sealed.
These bags were delivered directly to the Townsville laboratories (Intertek in 2021 and
SGS in 2020) by Terra Search and Superior’s employees.
Sample security measures within Intertek and SGS laboratories are considered
adequate.

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Criteria JORC Code explanation Commentary Commentary
Audits or The results of any audits or reviews of sampling techniques No audits or reviews of the sampling techniques and data have been undertaken to
reviews and data. date.

Section 2 Reporting of Exploration Results

(Criteria listed in the preceding section also apply to this section)

Criteria JORC Code explanation Commentary Commentary
Mineral Type, reference name/number, location and ownership including
The areas reported lie within Exploration Permit for Minerals 26165 and is held 100%
tenement and agreements or material issues with third parties such as joint by Superior.
land tenure
status
ventures, partnerships, overriding royalties, native title interests,
historical sites, wilderness or national park and environmental

Superior holds much of the surrounding area under granted exploration permits.
settings. Superior has agreements or other appropriate arrangements in place with landholders
The security of the tenure held at the time of reporting along and native title parties with respect to work in the area.
with any known impediments to obtaining a licence to operate in
the area.

No regulatory impediments affect the relevant tenements or the ability of Superior to
operate on the tenements.
Exploration Acknowledgment and appraisal of exploration by other parties. Small-scale historic mining occurred in the area from 1903 to 1912 in the ungazetted
done by other Lucky Creek Goldfield. The Lucky Surprise mine (part of what is now named Steam
parties Engine) reportedly extended over 15 m strike length to a maximum depth of 30 m
underground (Withnall et al 1996). The exact extent of underground workings is
unknown but given the likely size the impact on the current resource is considered to
be negligible.
The main significant historical work on the project was undertaken by Noranda (1985-
1987), Pioneer (1988-1989), Pancontinental Mining (1994), and Beacon Minerals
(2007). All four companies completed drilling programs within the current resource
area: Noranda 26 holes for 2335 m, Pioneer 37 holes for 2475 m, Pancontinental 2
holes for 100 m and Beacon 5 holes for 414 m. Comparison of the most of this historic
work to newer drilling shows the same overall grade distribution with no noticeable
bias. Some of the earlier work by Pioneer was early stage exploration in style and
unsuited for detailed resource definition and where necessary holes have been
excluded from the current resource estimate.
Geology Deposit type, geological setting and style of mineralisation. The deposits occur within a northeast trending belt of Palaeozoic-age gneiss, mica
schist and mafic/ultramafic metamorphic rocks located alongon the easterlymargin of

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Criteria JORC Code explanation Commentary Commentary
the older Georgetown Inlier.
Gold mineralisation occurs within several north-northeast trending, west dipping
pyritic quartz-muscovite-carbonate schist lodes within metamorphosed intermediate
to basic intrusive and metasedimentary rocks. Lodes are contained within shear zones
that are broadly parallel to foliation and lithological banding in the host rocks.
Significant chlorite–epidote and sericite type alteration zones exist in the shear zones,
with the mineralisation appearing to be mostly linked with heavily sericite altered
sections of the host rock.
The gold mineralisation phase itself consists of a predominant pyrite sulphide
assemblage +/- minor arsenopyrite, pyrrhotite, and chalcopyrite (all fine grained).
Several gold bearing lodes occur in the area, of which the Steam Engine Lode zone is
the most notable. The Eastern Ridge Lode zone is located some 500m east of the
Steam Engine Lode zone.
Recent studies undertaken by Superior Resource suggest the Steam Engine gold
mineralisation is most similar to mesothermal orogenic style.
Drill hole A summary of all information material to the understanding of No new drillhole information is presented in this release.
Information the exploration results including a tabulation of the following
information for all Material drill holes:
o easting and northing of the drill hole collar
o elevation or RL (Reduced Level) of the drill hole collar
o dip and azimuth of the hole
o down hole length and interception depth
o hole length.
If the exclusion of this information is justified on the basis that
the information is not Material and this exclusion does not
detract from the understanding of the report, the Competent
Person should clearly explain why this is the case.
Data In reporting Exploration Results, weighting averaging No new intersections are reported in this release.
aggregation techniques, maximum and/or minimum grade truncations (e.g.
methods cutting of high grades) and cut-off grades are usually Material
and should be stated.
• _Where aggregate intercepts incorporate short lengths of high _

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Criteria JORC Code explanation Commentary Commentary
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.
Relationship These relationships are particularly important in the reporting of No new intersections are reported in this release. Any reference to mineralisation
between Exploration Results. widths relate to true widths as determined by 3D modelling of the lodes.
mineralisation
If the geometry of the mineralisation with respect to the drill
widths and hole angle is known, its nature should be reported.
intercept If it is not known and only the down hole lengths are reported,
lengths there should be a clear statement to this effect (e.g. ‘down hole
_length, true width not known’). _
Diagrams Appropriate maps and sections (with scales) and tabulations of See Figures included the body of this release.
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 of all Exploration Results is not No new work relating to exploration results reported in this release.
reporting 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 meaningful and material, should be Specific gravity measurements were undertaken on 14 composite core samples within
substantive reported including (but not limited to): geological observations; mineralised and unmineralised material.
exploration
data
geophysical survey results; geochemical survey results; bulk
samples – size and method of treatment; metallurgical test
results; bulk density, groundwater, geotechnical and rock
characteristics; potential deleterious or contaminating
Three batches of metallurgical tests from composited samples have been conducted
between 2020 to 2022 involving a total of 31 samples (24 for Steam Engine and 7 from
Eastern Ridge).
substances. A summary of the metallurgical test work undertaken concludes an average gold
recovery for the Steam Engine Lode of 82% and for the Eastern Ridge Lode of 95%.
Further work The nature and scale of planned further work (e.g. tests for Subsequent to this Mineral Resource estimate additional work programs will now
lateral extensions or depth extensions or large-scale step-out include:
drilling).
Additional density measurements
Diagrams clearly highlighting the areas of possible extensions,
Pit optimisation studies
including the maingeological interpretations andfuture drilling
Further Metallurgical studies

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Criteria JORC Code explanation Commentary Commentary
areas, provided this information is not commercially sensitive. Geotechnical studies
Economic studies including processing options
Preliminary mining and rehabilitation planning
Preliminary environmental studies
Permitting

Section 3 Estimation and Reporting of Mineral Resources

(Criteria listed in section 1, and where relevant in section 2, also apply to this section.)

Criteria JORC Code explanation Commentary Commentary
Database Measures taken to ensure that data has not been corrupted Mining Associates (MA) has undertaken limited independent first principal checks
integrity by, for example, transcription or keying errors, between its using hard copies of results and sectional interpretations.
initial collection and its use for Mineral Resource estimation
purposes.
Data validation procedures used.
Basic database validation checks were run, including collar locations, drill holes plot on
topography, checks for missing intervals, overlapping intervals and hole depth
mismatches.
All data up to 20th of July 2025 was used in the preparation of this Mineral Resource
Estimate.
Site visits Comment on any site visits undertaken by the Competent The Competent Person (CP, Mr I.Taylor) visited site from the 13th to 14th August 2025
Person and the outcome of those visits. to review the geology and drill core.
If no site visits have been undertaken indicate why this is the Selected drill holes were laid out and reviewed by the CP.
case. Data collection and discussions with the Superior Staff and the core review were the
primary focus of the visits to provide a greater understanding of the geological setting,
style of mineralisation and appreciation of loggingand sampling procedures.
Geological Confidence in (or conversely, the uncertainty of) the geological
Confidence in the geological interpretation is considered moderate to high, depending
interpretation interpretation of the mineral deposit. on the differing drill hole spacing in parts of the deposit. The southern part of the
Nature of the data used and of any assumptions made. Steam Engine lode zone is most densely drilled in the upper 100m and grades are a
The effect, if any, of alternative interpretations on Mineral clear guide to defining the boundaries of the lodes. At Eastern Ridge the drilling in
Resource estimation. 2024 targeting down-dip extensions of the lodes resulted in narrower and lower grade
The use of geology in guiding and controlling Mineral Resource zones that was expected from earlier drilling, highlighting the lower confidence in the
estimation. interpretation in places.
The factors affecting continuity both of grade and geology. Interpretations are based solely on drill hole data: there is limited outcrop in the area
coveringthe deposit. 90% of drill metres are RC,which limits the available information

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Criteria JORC Code explanation Commentary Commentary
on structures.
Drill core and RC chip logging has been used to define the main geological units and
weathering profile boundaries.
Alternative interpretations of mineralised domain boundaries would affect tonnage
and grade, although the CP is confident that the current model is the best
representation of the deposit based on available data.
Minor cross faulting likely exists at the project, indicated by sudden displacements in
the lode position between drill sections. Any offsets are considered too small to be
significant at a resource scale.
Dimensions The extent and variability of the Mineral Resource expressed The Steam Engine lodes are modelled over a total strike length of 810m to a maximum
as length (along strike or otherwise), plan width, and depth down-dip extent of 275m (240m vertical depth). True width of the Main lode varies
below surface to the upper and lower limits of the Mineral. from 1m to 20m with an average of 6.5m. Hangingwall and Footwall lodes have a
strike extent of 185m and 115m respectively.
Eastern Ridge lodes are modelled over 600m along strike to a maximum down-dip
extent of 120m (100m vertical depth). True width of the North and South lodes varies
from <1m to 10m with an average of 3.5m.
Estimation The nature and appropriateness of the estimation technique(s)
Separate block models were created for Steam Engine and Eastern Ridge with the Y
and modelling applied and key assumptions, including treatment of extreme axis parallel to the average strike of the lodes: 30° at Steam Engine and 22° at Eastern
techniques grade values, domaining, interpolation parameters and Ridge.
maximum distance of extrapolation from data points. If a
computer assisted estimation method was chosen include a
description of computer software and parameters used.
The availability of check estimates, previous estimates and/or
mine production records and whether the Mineral Resource
Block sizes were chosen to reflect the average sample spacing mineralisation width
and, likely mining bench height: 2.5 in X (across strike), 10m in Y (along strike) and 5m
in Z (vertical). Sub-blocking to 0.625m, 1.25m and 1.25m respectively was selected to
ensure accurate volume definition.
estimate takes appropriate account of such data. Modelling of mineralised lodes in 3D was used to create hard boundaries for resource
The assumptions made regarding recovery of by-products. estimation. Models were based on a lower cut-off grade of 0.3 g/t Au, which
Estimation of deleterious elements or other non-grade represents a natural break in grade distribution over both lode systems. A “high-
variables of economic significance (e.g., sulphur for acid mine grade” zone of > 1g/t Au was also defined in the Steam Engine main lode data and was
drainage characterisation). also used as a hard boundary to estimation.
In the case of block model interpolation, the block size in
relation to the average sample spacing and the search
Drillhole data was composited to 1m intervals within defined mineralised domains.
Since the majorityof data is 1m RC samples there was minimal impact ongrade

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Criteria JORC Code explanation Commentary Commentary
employed. distributions.
Any assumptions behind modelling of selective mining units.
Any assumptions about correlation between variables.
Description of how the geological interpretation was used to
control the resource estimates.
Discussion of basis for using or not using grade cutting or
capping.
Grade caps were applied to reduce the influence of a few very high-grade outliers
apparent in the data that, if not adjusted, would have a detrimental effect on the
estimate. Caps were determined based on the pre-and post-capping informing sample
statistics to achieve a balance between reduction of outlier influence and maintaining
sample means.
The process of validation, the checking process used, the Variography was performed on composited and capped samples within each grade
comparison of model data to drill hole data, and use of domain. Reasonable variograms could only be generated using Normal Scores of data,
reconciliation data if available. which were then back-transformed to provide inputs to kriging. Back-transformed
nuggets were moderately high, at 0.6 of the normalised sills. Maximum ranges were
50m for Steam Engine and around 35m for Eastern Ridge. Variograms for the Steam
Engine high grade zone were applied to the hangingwall and footwall lodes, for which
there were insufficient samples for defining variograms.
Estimation utilised Ordinary Kriging (OK) with ranges and search ellipses defined by
variography. A two-pass approach was used to fill all blocks, with the first pass utilising
more samples (min 8 max 30) and with search ellipses extending to the range of the
sill. The second pass allowed for fewer minimum samples (min 5 max 30) with a search
ellipse two times the variogram range. Steam Engine footwall and hangingwall lodes
had insufficient data to produce reliable variograms. The top cut to samples in the
Eastern Ridge North zone was increased, but with limited spatial influence so as to
preserve a localised high-grade zone of mineralisation.
The estimate was validated by visual checks against informing sample data and by
comparison with Nearest Neighbour and Inverse Distance methods. Kriging produced a
smoother grade distribution than the other two methods but did broadly honour the
input data means on swath plots.
Moisture Whether the tonnages are estimated on a dry basis or with Tonnages are based on dry tonnes. Dry bulk density has been assigned to the host
natural moisture, and the method of determination of the rock.
moisture content.
Cut-off The basis of the adopted cut-off grade(s) or quality parameters
The resource is reported at two cut-off grades: above 0.25 g/t Au and above 1 g/t Au,
parameters applied. which are intended to reflect two different potential scenarios for project
development being considered by Superior. The lower cut-off relates to an on-site
processingoption whereas the 1g/t Au relates to toll-treatment at an existing plant.

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Criteria JORC Code explanation Commentary Commentary
Mining factors
Assumptions made regarding possible mining methods,
No mining factors or assumptions have been applied to the resource.
or
assumptions
minimum mining dimensions and internal (or, if applicable,
external) mining dilution. It is always necessary as part of the
JORC Code explanation Commentary process of determining
reasonable prospects for eventual economic extraction to
consider potential mining methods, but the assumptions made

MA considers the Steam Engine project amenable to open pit mining methods and
assumes the likely mining scenario will have 5m benches and 2.5m flitches. These
assumptions have influenced, composite length, block size and resource cut-off
parameters. No dilution factors are included in the resource estimate.
regarding mining methods and parameters when estimating The Steam Engine lode is reported to a depth cut-off of 200m vertical depth below
Mineral Resources may not always be rigorous. Where this is surface. This is considered the maximum reasonable depth for a potential pit, given
the case, this should be reported with an explanation of the the width and grade of mineralisation and consideration of approximate strip ratios.
basis of the mining assumptions made.
Metallurgical The basis for assumptions or predictions regarding No metallurgical factors have been applied to the in-situ grade estimates.
factors or
assumptions
metallurgical amenability. It is always necessary as part of the
process of determining reasonable prospects for eventual
economic extraction to consider potential metallurgical
methods, but the assumptions regarding metallurgical
treatment processes and parameters made when reporting
Mineral Resources may not always be rigorous. Where this is
Preliminary metallurgical leach test work was undertaken in October and November
2020 by ALS Laboratories to confirm the amenability of the ore to conventional CIP /
CIL leaching. Six sample composites were generated from material which was of ore
grade and considered representative of the ore to be mined, with two samples of each
of the three main ore zones.
the case, this should be reported with an explanation of the Grind size for the test work was P80 (80% passing size of 75 microns).
basis of the metallurgical assumptions made. The leach test conditions comprised sodium cyanide dosage of 1.5 kg/t, density of 40%
solids, pH of 10 to 10.5, with dissolved oxygen at 15 to 20 ppm.
Leach tests were run for 48 hours with a sample taken after 24 hours to assist in
understanding the leach kinetics.
The results for the Eastern Ridge samples (5223045 and 5223046) were excellent with
97% and 98% of the gold being extracted respectively, and with virtually all of this
extracted after 24 hours.
The results for the Steam Engine lode were lower with the average grade samples
(5223044, 5223042 and 5223043) seeing total gold extraction of 84%, 80% and 73%
respectively.
At this stage, no test work has been done to investigate options to improve the gold
recovery in the Steam Engine Lode samples.

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Criteria JORC Code explanation Commentary Commentary
Environmental
Assumptions made regarding possible waste and process
These factors have yet to be studied and some preliminary assumptions for this have
factors or residue disposal options. It is always necessary as part of the been adopted based on the known geology of the ore and waste. Ore and waste
assumptions process of determining reasonable prospects for eventual characterisation tests are due to be carried out soon and will include acid generation
economic extraction to consider the potential environmental tests.
impacts of the mining and processing 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 determined. If assumed, the basis for the Laboratory tests of the SG used diamond core from the oxide and sulphide zones. The
assumptions. If determined, the method used, whether wet or tests to date give an average for the oxide ore zone of SG 2.7 and for the sulphide ore
dry, the frequency of the measurements, the nature, size and zone of SG 2.9.
representativeness of the samples.
The bulk density for bulk material must have been measured
by methods that adequately account for void spaces (vugs,
porosity, etc), moisture and differences between rock and
alteration zones within the deposit.
The mineralization rock types encountered in the drilling are very low porosity/non-
porous rocks including metamorphic/magmatic rocks. The SG’s have been based on
dry core samples weighing between 1 to 4 kgs and tested for SG by ALS laboratories
using method OA_GRA08.
Discuss assumptions for bulk density estimates used in the
evaluationprocess of the different materials.
Classification The basis for the classification of the Mineral Resources into Confidence levels for classification were based on similar classifications that have been
varying confidence categories. made on similar deposits and by the degree of continuity of the lode zone, the density
Whether appropriate account has been taken of all relevant of the existing drilling, and the apparent reliability of the historical data (having been
factors (i.e., relative confidence in tonnage/grade estimations, confirmed by the recent 2020/2021 drilling).
reliability of input data, confidence in continuity of geology
and metal values, quality, quantity and distribution of the
data).
Whether the result appropriately reflects the Competent
Person’s view of the deposit.
The additional infill drilling in 2020/2021/2024 has led to an improved level of
classification, of the areas previously estimated. Further additional exploration drilling
has also led to new resource at the northern end and at depth at the Steam Engine
Lode. The drilling continues to confirm the continuity of the additional mineralisation
that is being outlined.
The result appropriately reflects the competent person’s current view of the deposit.

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Criteria JORC Code explanation Commentary Commentary
Audits or The results of any audits or reviews of Mineral Resource There has been no independent audit of the data or mineral resource.
reviews estimates. Principal Geologists from MA have peer reviewed the mineral resource estimate.
Discussion of Where appropriate a statement of the relative accuracy and No geostatistical confidence limits have been estimated. The relative accuracy and
relative confidence level in the Mineral Resource estimate using an confidence in the Mineral Resource Estimate is reflected in the Resource Categories.
accuracy/
confidence
approach or procedure deemed appropriate by the Competent
Person. For example, the application of statistical or
geostatistical procedures to quantify the relative accuracy of
the resource within stated confidence limits, or, if such an
A small part of the Steam Engine lode resource is classified as Measured, based on the
average drill spacing around 10 m and higher confidence kriging statistics. Indicated
resources have lower confidence kriging statistics, and sample spacings of 15 m-25 m.
approach is not deemed appropriate, a qualitative discussion The ordinary kriging result, due to the moderate to high level of smoothing, should
of the factors that could affect the relative accuracy and only be regarded as a global estimate, and is suitable as a life of mine planning tool.
confidence of the estimate. High grade domains and search parameters were used to restrict the high-grade
The statement should specify whether it relates to global or material.
local estimates, 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.
Inferred Mineral Resources have a lower level of confidence than that applying to
Measured or Indicated Mineral Resources and must not be converted to an Ore
Reserve.
These statements of relative accuracy and confidence of the Should local estimates be required for detailed mine scheduling, techniques such as
estimate should be compared with production data, where Uniform conditioning or conditional simulation should be considered. Ultimately grade
available. control drilling is required.
Comparison with the previous estimate in 2022 indicates that the changes
implemented in the current Mineral Resource Estimate produced results that are in
line with expectations.
Minor historic artisanal mining has occurred at the project but it’s impact on the
current resource is considered negligible.

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