Corporate Presentation – May 2026

developing a new globally significant critical minerals mine in Western Australia

May 2026

globally, in a top mining jurisdiction - Western Australia

Bangemall

Narryer

Barrabarra

Kings

Northam JV

Voyager

South West

Gonneville Project - greenfield discovery by Chalice 2020, FID targeted 2028 The largest and lowest cost undeveloped palladium-nickel-copper Reserve in the western world - set to generate exceptional returns over an initial 23yr open-pit life, with a rapid payback and significant upside - FS, approvals, offtake and project finance underway in parallel

Exploration Upside

Province scale exploration holding (7,000km2) in under-explored West Yilgarn

8 new Cu-Au targets in WA, SA and NT to be drilled in Q2-Q3 2026

Financial Strength

~A$63M in cash and listed investments² - funded to targeted FID in H1 2028. Significant govt critical minerals funding sources and lack of western development projects globally crowding in significant investment

Proven Team

Highly regarded, invested team with mine-finding and development expertise

Odin Partnership appointed as a strategic advisors (Mark Cutifani, Tony O'Neill)

Compelling Investment Opportunity

Trading at significant discount to Gonneville NAV - cyclical rebound in palladium and nickel underway and moving rapidly up theLassonde curve

1. Pre-tax, Refer to PFS announcement on 8 December 2025 titled "Gonneville Palladium-Nickel-Copper Project PFS"

2. Includes ~$7M in listed Investments as of 31 March 2026

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   Chalice is taking Gonneville to development, and recently appointed industry veterans Mark Cutifani and Tony O'Neill to its advisory board

   Board of Directors

Derek La Ferla, Non-Executive Chair

Mark Cutifani, Strategic Advisor

Tony O'Neill, Technical Advisor

Stephen McIntosh, Technical Advisor

Martin Reed, Technical Advisor

Dr Kevin Frost, Geology Advisor

Soo Carney, Environment and Community Advisor

Nobi Yamaji, Japan Representative

Tim Goyder

Paradice

6%

6%

51%

Share Register

37%

Retail/Other

Other Institutional

3.00

2.50

2.00

1.50

1.00

0.50

0.00

1. As of 11 May 2026; 2. As of 31 March 2026. 3. Major shareholder information is as disclosed in the last substantial shareholder notice provided to the Company.

competitive critical minerals mine in Western Australia

1. Significant production profile1 220kozpa 3E | 7ktpa Ni | 8ktpa Cu, 0.7ktpa Co over initial 23-year modelled open-pit life which exploits only ~50% of the Resource

   1. Tier-1 scale Resource & Ore Reserve2

      Resource: 17Moz Pd-Pt-Au (3E)

      960kt Ni | 540kt Cu | 96kt Co

      Reserve: 7.1Moz 3E

      400kt Ni | 260kt Cu | 43kt Co

2. Competitive cost profile

   Lowest-cost PGM producer in the

   Western world (US$370/oz 3E AISC) and lowest cost undeveloped PGM project globally

   1. Derisked greenfield development Located ~70km from Perth on Chalice-owned farmland with Strategic and Major Project Status from WA and Commonwealth Governments

3. Robust financial metrics A$1.4bn Pre-tax NPV8 | 23% IRR

   2.7yr payback @ conservative base case Pd: US$1,300/oz, Ni: US$18,750/t, Cu: US$10,500/t3

   1. Australia's first PGM mine

   One of the few credible new Western

   sources of critical Pd-Pt-Ni-Co supply,

   likely to attract significant capital

4. Fundable and executable project 8

Two-stage development, 1.2x strip

ratio open-pit, simple process flowsheet, ~$250M invested to date

Funded to targeted FID in H1 CY28 FID timing governed by regulatory approvals process, with FS and

offtake/financing discussions in parallel

1. Refer to PFS announcement on 8 December 2025 titled "Gonneville Palladium-Nickel-Copper Project PFS"

2. For tonnes and grade by confidence category refer to the Mineral Resource and Ore Rserve Estimate Statement in Appendix.

3. Pre-tax financial metrics, Revenue split 51% Pd, 22% Ni, 17% Cu, and byproducts with price assumptions of Pt: US$1,300/oz, Au: US$2,900/oz, Co: US$39,000/t and AUD/USD: 0.65

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1

WA Strategic Project Status + Commonwealth Major Project Status

2

Mine on Chalice-owned farmland - not in State Forest

3

No Native Title process (NT claims settled in 2021)

4

Minimal visual impact - flat topography, nearest towns

~25km away

5

Pd, Pt, Ni, Cu, Co are all critical minerals, strong govt alignment and incentives to develop

6

Strong community support, 500 local jobs and no FIFO

7

$250M invested to date, with strong focus on environmental and social impact mitigations

8

Project referred in 2024 (Public Environmental Review)

and on track for H1 CY28 decision

Chalice MD&CEO Alex Dorsch, WA Minister for Mines and Petroleum the Hon David Michael and Local Federal Member (Bullwinkel) Trish Cook at the Gonneville site in April 2026

WA Government is strongly pro-investment and has a track record of assessing and approving major resource projects in a timely manner

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Cobalt

3%

Nickel

22%

51%

17%

Copper

Palladium

4% 3%

Gold

Platinum

Quartile 1

Quartile 2

Quartile 3

Quartile 4

220kozpa @

US$600/oz 3E (SFA 2025 actual avge by-product prices), or US$370/oz 3E (PFS base case long term by-product prices)

Russia (Norilsk) - UG, vertically integrated

South Africa / Zimbabwe - primarily non-mechanised UG, vertically integrated operations, experiencing ~10% cost escalation per annum

Net total cash costs (US$/oz 4E)

Sustaining capex (US$/oz 4E)

2,500

2,000

1,500

1,000

500

0

-500

2,875

5,750 8,625

Cumulative 4E refined production (koz)

11,500

Source: PGM industry peer group data is compiled by SFA (Oxford) Ltd related to actual collated costs and revenues for CY2025, collated April 2026. PGM peer group operating costs include all costs up to and including smelting and refining for all assets. Gonneville project average life of mine cost and production data is sourced from Chalice Mining PFS (8 December 2025). Chalice operating costs include mine site cash costs, transport and selling costs, treatment and refining charges as well as an adjustment for metal payabilities (from Chalice December 2025 PFS) to enable like-for-like positioning on the cost curve against the peer group. Treatment and refining charges may

Metric (Pre-Tax)

NPV8 (A$bn) IRR (%)

NPV8 (A$bn)

IRR (%)

Pd Price (US$/ oz)

NPV8 (A$bn)

IRR (%)

NPV8 (A$bn) IRR (%)

0.8

0.7

0.6

0.5

0.4

0.3

0.2

Jul-25 Oct-25 Jan-26 Apr-26

Exceptional leverage to palladium: A$250M increase in NPV8 | A$630M increase in cumulative free cashflow per US$100/oz increase in long-term price

(excluding any changes to mine design / economic cut-off)

prices can rise rapidly with no supply response

3,500

3,000

2,500

COVID-19

Norilsk flooding

Ukraine invasion

(record high US$3,440/oz)

Chinese GFEX Pd futures market trading Nov-25

US tariff on

2,000

1,500

1,000

"Diesel-gate" pivot to petrol & palladium catalysts

PFS long-term base case

PFS mine design / cut-off

Russia dumping (confirmed by US Govt)

China imports at multi-year high in Sept 25

Price floor?

Russian Pd of 133%

500

3 mine closure / curtailments

0

Jul-18 Jan-19 Jul-19 Jan-20 Jul-20 Jan-21 Jul-21 Jan-22 Jul-22 Jan-23 Jul-23 Jan-24 Jul-24 Jan-25 Jul-25 Jan-26

Palladium price ran from ~US$1,000/oz to ~US$3,000/oz in 2 ½ years last cycle after 9 consecutive years of supply deficits,

with US government now confirming that Russia dumped in 2023 and had material adverse affect on price

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largest producer Russia and hybrid vehicle demand outpacing supply

133% US tariff on Russian palladium - instant western premium

US$12bn EXIM 'Project Vault'

strategic reserve established

Strong demand growth from

hybrids and AI / data centres

~90% from deep, aging Russian and South African mines - production shrinking and costs escalating rapidly

• In 2025 US Dept of Commerce confirmed that Russia has been dumping palladium on US markets since 2022 (invasion of Ukraine) - Russia produces ~40% of global supply

• New 133% anti-dumping duty1 effective now, instantly incentivising non-Russian supply

• New US strategic mineral reserve announced in Feb 2026 - includes Pd, Pt, Ni, Co (all critical minerals)

• Likely to support prices but also unlocks funding support for Gonneville

• Trump policy settings and wind down of BEV incentives supportive of hybrid vehicles

  (which require a palladium based catalytic converter)

• ~8Moz pa of gold used in electronics - palladium an attractive, cheaper substitute for ceramic capacitors and connector plating

• Nornickel investing US$100M in new demand sources, outlining 1.7Moz pa of new demand potential by 2030 from glass, electrochemistry, solar energy, microelectronics and battery technologies2

• Largest producers Norilsk and Valterra production guidance down c. 10% in 2026

• Limited development projects, producers signalling need for sustained >US$2,000/oz prices to invest in growth

• Mines susceptible to supply disruptions and constraints (Russian permafrost melt, South African labour disputes, power grid instability and thermal mine depth limits)

1. https://www.federalregister.gov/documents/2026/05/01/2026-08487/unwrought-palladium-from-the-russian-federation-final-affirmative-determination-of-sales-at-less

2. https://nornickel.com/news-and-media/press-releases-and-news/nornickel-highlights-new-palladium-demand-beyond-automotive-at-south-africa-industry-event/

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New process flowsheet proven up in PFS to produce two saleable

Sizing Grinding

Crushing

Leach

Grinding

Copper Flotation

(~36% of gross revenue)

Nickel Flotation

(39%)

Blend (~4:1 Sulphide : Oxide)

(25%)

Offtake of Cu-PGM-Au conc. to copper smelter:

~20% Cu, 45-60g/t 3E

Offtake of Ni-Co-PGM conc. to nickel smelter or pCAM refinery:

~8% Ni, 0.8% Co, 18-20g/t 3E

Offtake of PGM-Au doré to precious metal refinery

Geomet studies confirm sufficient variability testwork completed in the PFS to accurately predict recovery and future revenues 8-week continuous pilot of full flowsheet planned in H2 CY26, the final de-risking step for the FS and project financiers

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~50% of the Resource unmined below the PFS pit and the Resource

PFS assumes initial 23yrs of open-pit mining

~7.9Moz 3E, 450kt Ni, 250kt Cu, 46kt Co contained in Resource below PFS pit shell

Deepest intersections to date - host intrusion ~600m thick and open

significant upside through deeper open-pit mining or eventual transition to large-scale underground

1. Refer to full Mineral Resource Statement in Appendix

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funding options since release of the PFS

High priority -

lowest cost

• Funding strategy currently focussed on sovereign/govt

  sources - with very strong inbound interest to date

• Initial advice indicates up to 60-70% of pre-production CapEx could be funded with debt, given strong margins through-the-cycle

• Provides significant opportunity to reduce overall cost of capital

• Potential for government grants

  Near term priority for byproducts

  Lower priority

  Offtake pre-pay, minor metal streams, royalties, etc Commercial banks, debt funds, hybrid finance, etc

• Secondary funding options are extensive

• Cu, Ni concentrate markets are tight and very

  competitive - offtake pre-pays under consideration

• Strong interest from Royalty Co's and debt funds - looking to deploy into rapidly rising markets

• Commercial banks increasingly active in critical minerals projects in safe jurisdictions

  
  
  The Project has been substantially de-risked by Chalice since our discovery in 2020, with an investment of ~$250M to date

  Resource	Drilled out to Indicated category to depth of ~450m, Inferred Resources continue to depth of 1,100m - exceptional orebody knowledge of grade/mineralogy/metallurgy definition
  Tenure / Land	Acquired 2,600ha of farmland surrounding the Resource, providing sufficient land for infrastructure and initial offsets, significantly de-risking the Project
  Process Flowsheet	Simple flotation and leach circuits to produce saleable smelter concentrates and doré - major breakthroughs in 2024-2025 that simplify and enhance the project
  Infrastructure	Water-power solutions and corridors defined - investigating multi-user infrastructure solutions with government support for mutual benefit
  PFS Two-stage, initial 23-year bulk open-pit mine with simplified process flowsheet and significant upside
  Offtake	High levels of interest from smelters - commercial discussions including potential linked project finance ongoing (sufficient de-risking in PFS to support transaction)	ongoing
  Approvals	Referred Project in early 2024, Strategic and Major Project Status awarded, strong level of local community support - environmental modelling underway to support ERD submissions in H2 CY26	ongoing
  Feasibility Study	Stage 1 FS underway including 8 week lab scale pilot of full flowsheet in H2 2026 and engineering to support bankable cost assumptions - c. $25M estimate to complete by H2 CY27	ongoing
  Financing	Debt financing strategy focussed on export credit agencies and offtake linked finance - initial feedback very positive, margins expected to underpin significant, low-cost debt funding from a wide range of options	ongoing
  FID	Targeted in H1 CY28 (governed primarily by approvals timeline)

  1. Study, approvals and development timeline is indicative only and subject to change dependent on PFS delivery in CY25

  
  
  Beyond Gonneville, Chalice has dramatically increased its copper-gold

  exploration in the West Yilgarn, Curnamona and Tennant Creek regions

  
  
  

  Bangemall

  Narryer

  Barrabarra

  Kings

  Northam JV

  Julimar

  Voyager

  South West

  
  
  

  Why we like it

  • ~1,200km long western margin of the Yilgarn craton largely unexplored, due to lack of outcrop and prevalence of large-scale farming

  • Exciting new search space for intrusion-related / orogenic gold/copper/silver and orthomagmatic Ni-Cu-PGE deposits, akin to:

    • Gonneville (~17Moz PGM-Au, 1Mt Ni, 0.5Mt Cu)

    • Boddington (~30Moz Au, 1.3Mt Cu)

  • Prior to Gonneville discovery, region largely mapped as barren granite-gneiss geology - now shown to host several thousand square kilometers of prospective, untested greenstone belt

    Work to date

  • Chalice commenced exploring systematically in 2021 and has defined >40 new target areas at varying levels of maturity

    Next Steps

  • New Cu-Mo-Ag target (Deep Blue) to be drilled at Northam JV in WA in Q2

  • 3 new IOCG targets to be drilled at new Callabonna JV in SA in Q3

    17

  • 4 new IOCG targets to be drilled at Warrego North Project in NT in Q3

~3Mt Caravel Copper deposit

Why we like it

• New ~2.5km long, strong, coherent Cu-Mo-Ag soil anomaly

• 15km SE along strike of the Caravel Copper Resource (3Mt Cu contained, owned by Caravel Minerals ASX: CVV - at PFS stage)

• Elevated Ce and La in soils associated with Cu anomalism, suggesting a fertile, mineralised intrusive system

• Interpreted as a large-scale hydrothermal system

  with potential for porphyry-style mineralisation

  Work to date

• Soil and rock chip sampling (rock chip assays pending)

• Land access secured for immediate drilling

  Next steps

• Ground gravity surveys to define intrusive architecture and drill targets

• Targeted RC drilling in Q2

Deep Blue Target soil sampling results over satellite image.

Why we like it

• Underexplored IOCG corridor in the Curnamona Province, favourable geology and structural setting

• Multiple large-scale (2-5km) magnetic and gravity anomalies consistent with IOCG systems

• Drilling shows IOCG-style alteration, likely distal to system

• Key gravity anomalies untested and drill-ready

• Strong fit with Chalice's geophysics-led exploration approach

• Targets at explorable depths (~400-750m)

  Work to date

• Detailed geophysical targeting completed

• Historical drilling confirms prospective IOCG geology

• Previous drilling did not test core targets

  Next steps

• Drilling planned Q3 CY26

• Three priority gravity targets to be tested

Regional Magnetics (TMI) Residual Gravity

Why we like it

• Located ~20km north-west of the historical high-grade Warrego copper-gold mine within the Tennant Creek Mineral Field (TCMF)

• Warrego historically produced 1.4Moz Au at 6.6g/t and 130kt Cu at 1.9% Cu

• Structural architecture analogous to Warrego, and

  other historical producers

• Coincident gravity-magnetic anomalies consistent with IOCG systems

  Work to date

• Several historical rounds of drilling at Parakeet and Chook Prospects, but most mag-gravity targets undrilled

• Executed land access agreements

• Identified 4 x priority IOCG targets

  Next steps

• Heritage surveys

• Drilling planned for H2 CY26

Warrego Project targets and historical drilling over regional magnetics (TMI)

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