Existing Resource and infrastructure.A major drilling program defining what comes next.

Mineral Hill combines a 12.1Mt / 884koz AuEq Mineral Resource with an established mine and processing complex and multiple underground and near-mine growth targets. Current cash supports Kingston’s 25,000m FY27 drilling and technical program.

Our investment case

Three pillars behind our investment case.

01

Resource scale and growth potential

Mineral Hill has a 12.1Mt / 884koz AuEq Mineral Resource across five orebodies. Since acquiring the asset, Kingston has increased the Resource from 5.9Mt to 12.1Mt while processing approximately 2Mt. Multiple underground and near-mine targets provide opportunities for further growth.

12.1Mt / 884koz AuEqTotal Mineral Resource

02

Established mine and processing complex

Mineral Hill includes a fully permitted 350ktpa processing plant, two existing underground declines and established site infrastructure. This operating footprint provides a strong foundation from which Kingston can assess and advance a potential underground restart.

350ktpaFully permitted processing capacity

03

Funded program with defined milestones

Current cash supports the 25,000m FY27 drilling and technical program. The work is targeting Resource growth, increased geological confidence, additional potential ore sources and support for Ore Reserve conversion and mine planning.

25,000mFY27 planned drilling

The Mineral Resource was reported to the ASX on 24 June 2026 (Mineral Resource Increase at Mineral Hill) in accordance with the JORC Code 2012, and is summarised in our September 2026 Investor Presentation, which includes the Competent Person statements. Gold equivalent (AuEq) figures combine gold, copper, lead, zinc and silver using the prices, recoveries and factors set out in that presentation: AuEq g/t = Au g/t + (0.883 × Cu %) + (0.016 × Ag g/t) + (0.132 × Pb %) + (0.163 × Zn %). Kingston considers all elements included have a demonstrated potential to be recovered and sold. Kingston is not aware of any new information or data that materially affects the Mineral Resource estimate.

The pathway to a potential underground restart

Existing infrastructure.A clear program to define the next phase.

Mineral Hill has a fully permitted 350ktpa processing plant, two existing underground declines and a 12.1Mt Mineral Resource. Kingston’s FY27 program is designed to build the Resource scale, geological confidence and integrated mine plan required to assess a potential underground restart.

  1. 01Drill for growth and confidenceWe are hereComplete the planned 25,000m extension, exploration and infill drilling program across eight priority target areas.
  2. 02Update Resources and support Reserve conversionTarget Mineral Resource growth, increase Measured and Indicated Resources and establish additional potential ore sources.
  3. 03Define the integrated mine planAssess potential mining fronts, processing rate, technical requirements and capital requirements.
  4. 04Assess a potential underground restartBring together the Resource, Ore Reserve, mine plan, technical studies and funding pathways to inform a future investment decision.

June 2026 Southern Ore Zone Resource update

+50%

The June 2026 Mineral Resource update increased Southern Ore Zone tonnes by 50% following 26 holes for 3,413m of drilling. This is a completed historical result and does not indicate the outcome of future drilling.

Total tonnes
4.36Mt → 6.54Mt
Measured and Indicated
2.21Mt → 3.05Mt
Metres drilled
3,413m

FY27: 25,000m program planned across Mineral Hill

Mineral Resource by deposit, reported 24 June 2026

227koz Au, 54kt Cu, 74kt Pb, 71kt Zn, 2.89Moz AgPrimary FY27 underground drilling focus; Resource open in all directions

35kt Cu, 60kt Pb, 30kt Zn, 4.93Moz AgExisting Resource with nearby surface exploration targets

66koz Au, 15kt Cu, 14kt Pb, 1.05Moz AgResource drilling underway; separate decline and underground access in place

1.07g/t Au and 1.48% CuHigh-grade target with extensions to the north and down dip

3.41g/t Au and 65g/t AgOpen-pit mining ceased in June 2026

Mineral Resource reported to the ASX on 24 June 2026 (Mineral Resource Increase at Mineral Hill) in accordance with the JORC Code 2012, totalling 12.1Mt / 884koz AuEq at 2.3g/t AuEq, as summarised in our September 2026 Investor Presentation. Competent Person statements and the metal-equivalent calculation (prices, recoveries and factors) are set out in that presentation. Totals may not sum due to rounding.

Mineral Hill

Four Resource and growth areas. One established processing plant.

The Southern Ore Zone, Jack’s Hut, Red Terror and Parker’s Hill are located within Kingston’s 100%-owned Mineral Hill Mining Lease, alongside existing underground access and the processing plant. Together, they provide multiple areas for Resource definition, extension drilling and future mine planning within one established asset.

01

Southern Ore Zone

6.54MtMineral Resource

The Southern Ore Zone is Mineral Hill’s largest deposit and the principal focus of the underground drilling program. The June 2026 Mineral Resource update increased total tonnes by 50% and Measured and Indicated tonnes by 38% following 3,413m of drilling.

FY27 extension and infill drilling is targeting further Resource growth and increased geological confidence. The Resource remains open in all directions.

Mineral Resource Increase at Mineral Hill, 24 June 2026

02

Jack’s Hut

1.64MtMineral Resource

Jack’s Hut has its own underground portal and decline, separate from the Southern Ore Zone. September 2026 infill drilling supported the existing geological interpretation and increased confidence around areas being evaluated for potential future underground mining.

Results included 29.1m at 1.6% CuEq from 142.8m in KSNDDH092. The results will inform an updated Mineral Resource estimate targeted for the March quarter of 2027, while surface drilling is planned to test potential extensions below the existing Resource.

Jack’s Hut Resource Drilling Results, 8 September 2026. Intercepts are downhole lengths, not true widths.

03

Red Terror

19.0m @ 10.75g/t Auand 0.63% Cu, KSNDDH080

Recent drilling at Red Terror included a reported downhole intersection of 19.0m at 10.75g/t Au and 0.63% Cu from 41m in KSNDDH080, including 8.55m at 23.80g/t Au and 0.91% Cu.

The drilling intersected mineralisation outside the current 0.21Mt Mineral Resource. Red Terror remains open to the north and down dip, with extension drilling included in the FY27 program.

High Grade Extensions at Red Terror, 2 July 2026. Intercepts are downhole lengths, not true widths.

04

Parker’s Hill

3.57MtMineral Resource

Parker’s Hill contains copper, lead, zinc and silver mineralisation within an existing Mineral Resource. Nearby Parker’s Hill East is a surface exploration target in the FY27 program.

Planned drilling will test for primary sulphide mineralisation beneath the historical K64A supergene zinc intersection.

Mineral Resource, 24 June 2026 and Mineral Hill Drilling Update, 27 August 2026

05

Processing plant

350ktpaFully permitted processing capacity

Mineral Hill has an existing processing plant with flotation and carbon-in-leach circuits capable of producing metal concentrates and precious-metal doré.

The plant is located at the mine site and is supported by established infrastructure, including grid power and sealed-road access. It has been on care and maintenance since June 2026 while Kingston advances the drilling and technical program.

Mineral Resources are reported under the JORC Code 2012 and summarised in our September 2026 Investor Presentation, which lists the original source announcements and Competent Person statements. Intercepts are downhole lengths, not true widths. Exploration results are not Mineral Resources, and FY27 drilling plans are forward looking and may change.

The resource

12.1Mt / 884koz AuEq total Mineral Resource

Total Mineral Resource12.1Mt / 884koz AuEqAcross Mineral Hill’s five orebodies.
Southern Ore Zone Resource6.54MtIncreased by 50% in the June 2026 Mineral Resource update.Up 50%
Southern Ore Zone, Measured and Indicated3.05MtIncreased by 38% in the June 2026 Mineral Resource update.Up 38%
Probable Ore Reserve700ktCurrent Probable Ore Reserve derived from the Southern Ore Zone Indicated Resource. Planned infill drilling is intended to support subsequent Reserve conversion.

Mineral Resource estimates are reported in accordance with the JORC Code 2012 (Mineral Resource Increase at Mineral Hill, 24 June 2026). The Southern Ore Zone Probable Ore Reserve was reported on 30 September 2024. Both are summarised, with Competent Person statements and the metal-equivalent calculation, in our September 2026 Investor Presentation. We are not aware of any new information or data that materially affects them, and all material assumptions and technical parameters continue to apply. Exploration results are not Mineral Resources or Ore Reserves, and there is no certainty that further exploration will result in the determination of a Mineral Resource.

25,000 metres planned for FY27.Mineral Hill’s largest annual drilling program since 1999.

The FY27 program combines infill, underground extension and surface extension and discovery drilling. It is designed to grow the Mineral Resource, increase confidence in existing Resources, identify additional potential ore sources and support future Reserve conversion and mine planning.

10,025m
Infill drillingImprove geological confidence in areas relevant to future mine planning and support subsequent Reserve conversion.
8,400m
Underground extension drillingTest continuity and extensions from existing underground access.
6,575m
Surface extension and discovery drillingTest Jack’s Hut, Iodide and other near-mine target potential.