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Reporting assumptions

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Ownership basis

Show the full project inventory before ownership adjustment.

Display scale

Display contained quantities in millions of ounces or tonnes.

Resource treatment

Normalise Resources to exclude Reserves: where a project is flagged inclusive, net Reserves out of Resources so the figure is additional Resources beyond Reserves. Unknown-convention rows are shown as stated.

Resource total

Total Resource includes Inferred (JORC convention). Totals are re-derived from category rows wherever the document discloses them.

Recovery basis

Show the issuer's headline recoverable figure as reported. Lithium-brine reserves already have the brine-processing recovery factor applied; everything else is shown as stated.

Commodity view

Primary view: each commodity in its own contained unit (oz / t).

Copper South Australia

South Australia, Australia · Producing · 100.0% ownedUnverified

Current R&R by category

Whole-project rollup at the latest vintage per category: printed project-level rows are preferred, and mining areas are summed (tonnes-weighted grade) only where the issuer prints no project-level row. Per-area and per-source detail in the Current R&R table below.

Au

Category	Tonnes (Mt)	Grade (g/t Au)	Contained (Moz Au)	As at
Measured	90.00 Mt	0.42 g/t	1.22 Moz	30 June 2026
Indicated	430.00 Mt	0.27 g/t	3.73 Moz	30 June 2026
M&I = Measured + Indicated (overlaps both)	520.00 Mt	0.29 g/t	4.85 Moz	30 June 2026
Inferred	1,690.00 Mt	0.32 g/t	17.39 Moz	30 June 2026
Total Resources	2,210.00 Mt	0.31 g/t	22.34 Moz	30 June 2026
Proved	29.00 Mt	0.59 g/t	0.55 Moz	30 June 2026
Probable	149.00 Mt	0.53 g/t	2.54 Moz	30 June 2026
Total Reserves	178.00 Mt	0.54 g/t	3.09 Moz	30 June 2026

M&I is the issuer's printed Measured + Indicated subtotal — it overlaps the Measured and Indicated rows and is never added alongside them; the Total rows and every rollup already exclude it.

Ag

Category	Tonnes (Mt)	Grade (g/t Ag)	Contained (Moz Ag)	As at
Measured	90.00 Mt	3.00 g/t	8.68 Moz	30 June 2026
Indicated	430.00 Mt	2.00 g/t	27.65 Moz	30 June 2026
M&I = Measured + Indicated (overlaps both)	520.00 Mt	2.00 g/t	33.44 Moz	30 June 2026
Inferred	1,690.00 Mt	0.40 g/t	21.73 Moz	30 June 2026
Total Resources

Cu

Category	Tonnes (Mt)	Grade (% Cu)	Contained (Mt Cu)	As at
Measured	90.00 Mt	0.92%	0.83 Mt Cu	30 June 2026
Indicated	430.00 Mt	0.53%	2.28 Mt Cu	30 June 2026
M&I = Measured + Indicated (overlaps both)	520.00 Mt	0.60%	3.12 Mt Cu	30 June 2026
Inferred	1,690.00 Mt	0.59%	9.97 Mt Cu	30 June 2026
Total Resources

Cut-off grade

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Price assumption

A$30.10/t · A$2586.70/t · A$4.21/t · A$4.00/t · A$1904.41/t · A$23.35/t · A$2027.88/t · A$24.09/t

JORC code year

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Peer benchmark — producing Cu projects (98 with resources)Resource size P86Resource grade P62View on grade-tonnage chart →

Percentile of this project's current total Resource among covered peers (P100 = largest / highest grade). Basis and Inferred toggles apply.

Data quality

Latest source: 20-F: 20-F · 30 June 2026
Reporting code: SK-1300
Convention: exclusive
Currency assumption: A$

Current R&R

Resources

Area	Category	Tonnes (Mt)	Au		Ag		Cu		As at	Source	Provenance
Area	Category	Tonnes (Mt)	Grade (g/t Au)	Contained (Moz Au)	Grade (g/t Ag)	Contained (Moz Ag)	Grade (% Cu)	Contained (Mt Cu)	As at	Source	Provenance
Total	Measured	90.00 Mt	0.42 g/t	1.22 Moz	3.00 g/t	8.68 Moz	0.92%	0.83 Mt Cu	30 June 2026

Reserves

Area	Category	Tonnes (Mt)	Au		Ag		Cu		As at	Source	Provenance
Area	Category	Tonnes (Mt)	Grade (g/t Au)	Contained (Moz Au)	Grade (g/t Ag)	Contained (Moz Ag)	Grade (% Cu)	Contained (Mt Cu)	As at	Source	Provenance
Total	Proved	29.00 Mt	0.59 g/t	0.55 Moz	2.00 g/t	1.86 Moz	1.05%	0.30 Mt Cu	30 June 2026	6.1 Copper Mineral reserves As at 30 June 2026Unverified Evidence record Copper South Australia Proved · Cu · as at 2026-06-30 Reported figure Area Whole project Basis attributable Ore tonnes (t) 29000000.0000 Grade 1.0500 Contained (t Cu) 304500.0000 Classification Reserve Source trail 20-F: 20-F 6.1 Copper Mineral reserves As at 30 June 2026 Published 2026-08-18 Verification Approved; not independently verified · Model extracted QA INFO: inclusive-of-reserves flag cleared — the flag describes resource statements; reserve rows carry none. \| QA approve (t119v): source-table reconciled; printed values, basis and vintage verified \| t119v Copies a pre-filled issue record so you can send it through your normal channel.	notes (6) Source: 20-F: 20-F · published 18 Aug 2026 Ref: 6.1 Copper Mineral reserves As at 30 June 2026 SK-1300 — Reporting code of record: SK-1300 @ A$ 4/t — Metal price assumption used to derive this estimate. attrib — Figures are net to the issuer's ownership interest as reported (attributable basis) — NOT 100% of the project. QA notes: QA INFO: inclusive-of-reserves flag cleared — the flag describes resource statements; reserve rows carry none. QA approve (t119v): source-table reconciled; printed values, basis and vintage verified t119v
Total	Probable	149.00 Mt	0.53 g/t	2.54 Moz	4.00 g/t	19.16 Moz	1.12%	1.67 Mt Cu	30 June 2026	6.1 Copper Mineral reserves As at 30 June 2026Unverified Evidence record Copper South Australia Probable · Ag · as at 2026-06-30 Reported figure Area Whole project Basis attributable Ore tonnes (t) 149000000.0000 Grade 4.0000 Contained (oz) 19161844.9549 Classification Reserve Source trail 20-F: 20-F 6.1 Copper Mineral reserves As at 30 June 2026 Published 2026-08-18 Verification Approved; not independently verified · Model extracted QA INFO: inclusive-of-reserves flag cleared — the flag describes resource statements; reserve rows carry none. \| QA approve (t119v): source-table reconciled; printed values, basis and vintage verified \| t119v Copies a pre-filled issue record so you can send it through your normal channel.	notes (6)
Total	Total Reserves	178.00 Mt	0.54 g/t	3.09 Moz	4.00 g/t	22.89 Moz	1.11%	1.98 Mt Cu	30 June 2026	6.1 Copper Mineral reserves As at 30 June 2026Unverified Evidence record Copper South Australia Total Reserve · Au · as at 2026-06-30 Reported figure Area Whole project Basis attributable Ore tonnes (t) 178000000.0000 Grade 0.5400 Contained (oz) 3090329.7602 Classification Reserve Source trail 20-F: 20-F 6.1 Copper Mineral reserves As at 30 June 2026 Published 2026-08-18 Verification Approved; not independently verified · Model extracted QA INFO: inclusive-of-reserves flag cleared — the flag describes resource statements; reserve rows carry none. \| QA approve (t119v): source-table reconciled; printed values, basis and vintage verified \| t119v Copies a pre-filled issue record so you can send it through your normal channel.	notes (6)
Underground	Proved	26.00 Mt	0.61 g/t	0.51 Moz	3.00 g/t	2.51 Moz	1.06%	0.28 Mt Cu	30 June 2025	6.1 Copper — Mineral reserves tableUnverified Evidence record Copper South Australia Proved · Cu · as at 2025-06-30 Reported figure Area Underground Basis attributable Ore tonnes (t) 26000000.0000 Grade 1.0600 Contained (t Cu) 275600.0000 Classification Reserve Source trail 20-F: FORM 20-F 6.1 Copper — Mineral reserves table Published 2025-08-22 Verification Approved; not independently verified · Model extracted Copies a pre-filled issue record so you can send it through your normal channel.	notes (3) Source: 20-F: FORM 20-F
Underground	Probable	145.00 Mt	0.54 g/t	2.52 Moz	4.00 g/t	18.65 Moz	1.12%	1.62 Mt Cu	30 June 2025	6.1 Copper — Mineral reserves tableUnverified Evidence record Copper South Australia Probable · Ag · as at 2025-06-30 Reported figure Area Underground Basis attributable Ore tonnes (t) 145000000.0000 Grade 4.0000 Contained (oz) 18647433.0098 Classification Reserve Source trail 20-F: FORM 20-F 6.1 Copper — Mineral reserves table Published 2025-08-22 Verification Approved; not independently verified · Model extracted QA WARN: unrecognised source metal label 'g/tAg' for Ag — verify the commodity mapping. Copies a pre-filled issue record so you can send it through your normal channel.	notes (4) Source: 20-F: FORM 20-F
Underground	Total Reserves	171.00 Mt	0.55 g/t	3.02 Moz	4.00 g/t	21.99 Moz	1.11%	1.90 Mt Cu	30 June 2025	6.1 Copper — Mineral reserves tableUnverified Evidence record Copper South Australia Total Reserve · Ag · as at 2025-06-30 Reported figure Area Underground Basis attributable Ore tonnes (t) 171000000.0000 Grade 4.0000 Contained (oz) 21991110.6529 Classification Reserve Source trail 20-F: FORM 20-F 6.1 Copper — Mineral reserves table Published 2025-08-22 Verification Approved; not independently verified · Model extracted QA WARN: unrecognised source metal label 'g/tAg' for Ag — verify the commodity mapping. Copies a pre-filled issue record so you can send it through your normal channel.	notes (4) Source: