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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).

Sandstone

Western Australia, Australia · Exploring · 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.

Category	Tonnes (Mt)	Grade (g/t Au)	Contained (Moz Au)	As at
Measured	—	—	—	—
Indicated	24.65 Mt	1.50 g/t	1.14 Moz	15 July 2026
Inferred	44.68 Mt	1.20 g/t	1.73 Moz	15 July 2026
Total Resources	69.34 Mt	1.30 g/t	2.87 Moz	15 July 2026
Proved	—	—	—	—
Probable	—	—	—	—
Total Reserves	—	—	—	—

Cut-off grade

0.4000 g/t Au · 0.5000 g/t Au · 0.6000 g/t Au · 0.7300 g/t Au

Price assumption

—

JORC code year

2012

Peer benchmark — exploring Au projects (297 with resources)Resource size P87Resource grade P59View 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: Sandstone Mineral Resource Grows to 2.9Moz · 15 July 2026
Reporting code: JORC 2012
Convention: inclusive
Currency assumption: A$
Disagreement flags: 48 rows

Current R&R

Resources

Area	Category	Tonnes (Mt)	Au		As at	Source	Provenance
Area	Category	Tonnes (Mt)	Grade (g/t Au)	Contained (Moz Au)	As at	Source	Provenance
Total	Indicated	24.65 Mt	1.50 g/t	1.14 Moz	15 July 2026	5Unverified Evidence record Sandstone Indicated · Au · as at 2026-07-15 Reported figure Area Whole project Basis 100% Ore tonnes (t) 24652000.0000 Grade 1.5000 Contained (oz) 1144000.0000 Classification Resource Source trail Sandstone Mineral Resource Grows to 2.9Moz 5 Published 2026-07-15 Verification Approved; not independently verified · Model extracted QA INFO: recompute differs 3.92% from the printed contained figure, but the printed tonnes/grade/contained are only good to ±3.38% (rounding granularity) — treated as reconciled. \| QA approved: verified against the source print by the tranche-19 agent pass \| t83 print round (p5): PRINTCHECK RESOLVED - Central Trend IS printed and was not captured; the rollup is right. Table 1 p5 'Mineral Resource Table Summary for the Sandstone Project' prints 'Total - Sandstone - - - 24,652 1.5 1,144 44,684 1.2 1,725 69,337 1.3 2,868' (repeated as Table 4 p25 'Consolidated Mineral Resources ... as at 15 July 2026'), so the stored 24,652,000t g=1.5 contained 1,144,000 is print-exact. The un-captured indicated line is 'Central Trend (Eureka, Wirraminna, Old Town, Twin Shafts, Goat Farm, McClaren) 0.5 - - - 1,480 1.1 53 1,131 1.1 39 2,612 1.1 91' - it is the only 0.5 g/t cut-off left in the table and the only deposit not signed off by Graham de la Mare ('Shaun Searle, Ashmore Advisory, Sandstone Central Trend, 15/12/2021'). Residual 24,652 - 23,173 = 1,479kt / 1,144 - 1,090 = 54koz vs printed 1,480kt / 53koz: 1kt and 1koz of print rounding ('Note some rounding discrepancies may occur'). Havilah Camp contributes nothing here - it prints no Indicated ('Havilah Camp 0.4 - - - - - - 1,359 1.2 54 1,359 1.2 54'). Copies a pre-filled issue record so you can send it through your normal channel.

Total

Inferred

44.68 Mt

1.20 g/t

1.73 Moz

15 July 2026

5Unverified

notes (4)

Source: Sandstone Mineral Resource Grows to 2.9Moz · published 15 July 2026

Ref: 5

JORC 2012 — Reporting code of record: JORC 2012
inc — Stated Resources are inclusive of Reserves. Set Resources: Excl. Reserves to net them out.

QA notes:

QA approved: verified against the source print by the tranche-19 agent pass
t83 print round (p5): PRINTCHECK RESOLVED - same table; stored 44,684,000t g=1.2 contained 1,725,000 is print-exact per 'Total - Sandstone - - - 24,652 1.5 1,144 44,684 1.2 1,725 69,337 1.3 2,868'. Residual 44,684 - 42,117 = 2,567kt / 1,725 - 1,629 = 96koz needs THREE un-captured printed inferred lines, not two: 'Havilah Camp 0.4 - - - - - - 1,359 1.2 54 1,359 1.2 54' + 'Central Trend ... 1,131 1.1 39' + the inferred half of 'McIntyre 0.4 - - - 513 1.2 20 77 0.9 2 589 1.2 23' (McIntyre indicated and total are stored, its inferred is not) = 1,359 + 1,131 + 77 = 2,567kt EXACT, and 54+39+2 = 95koz vs 96koz residual (1koz rounding). CORRECTION to the hold note: its Havilah figure 1,171kt/54koz is the superseded 28-Jan-2026 vintage (which this doc reprints as Table 3 'Previous MRE for Sandstone': 'Havilah Camp 0.5 - - - - - 0 1,171 1.4 54 1,171 1.4 54'); the 15-Jul-2026 statement restates Havilah at 1,359kt @ 1.2 for 54koz at a 0.4 g/t cut-off.

Total

Total Resources

69.34 Mt

1.30 g/t

2.87 Moz

15 July 2026

5Unverified

notes (5)

Source: Sandstone Mineral Resource Grows to 2.9Moz · published 15 July 2026

Ref: 5

JORC 2012 — Reporting code of record: JORC 2012
inc — Stated Resources are inclusive of Reserves. Set Resources: Excl. Reserves to net them out.

QA notes:

QA INFO: recompute differs 1.05% from the printed contained figure, but the printed tonnes/grade/contained are only good to ±3.86% (rounding granularity) — treated as reconciled.
QA approved: verified against the source print by the tranche-19 agent pass
t83 print round (p5): PRINTCHECK RESOLVED - same table; stored 69,337,000t g=1.3 contained 2,868,000 is print-exact per 'Total - Sandstone - - - 24,652 1.5 1,144 44,684 1.2 1,725 69,337 1.3 2,868', and the 2,868koz ties the release headline 'Sandstone Mineral Resource Grows to 2.9Moz'. Residual 69,337 - 65,365 = 3,972kt / 2,868 - 2,724 = 144koz = printed Havilah Camp total 1,359kt/54koz + printed Central Trend total 2,612kt/91koz = 3,971kt / 145koz - 1kt and 1koz of print rounding. Both are genuine printed deposit lines that were never captured at this vintage.

Ladybird

Total Resources

0.10 Mt

1.90 g/t

0.01 Moz

01 Apr 2023

36Unverified

notes (4)

Source: DFS Presentation · published 30 June 2025

Ref: 36

JORC 2012 — Reporting code of record: JORC 2012
Cutoff 0.50 g/t Au — Cut-off grade assumption from the source statement.

QA notes:

QA WARN: cross-category subtotal — this total_resource row on area 'Ladybird' equals the sum of the same area's inferred leaves — a per-deposit M&I/P&P-style total (t24 LUN/LUG NI 43-101 class). Policy keeps category leaves + the whole-project Total; adjudicate per the per-property-totals precedent before approval. QA INFO: recompute differs 23.64% from the printed contained figure, but the print is exactly consistent with the recompute at the printed tonnes/grade/contained granularity (rounding-interval overlap) — treated as reconciled.
QA fix: Appendix 4 "Sandstone Mineral Resources" p.36, CONSTRAINED (April 2023) table, row "Ladybird", Total (M+I+Inferred) columns: 0.1 Mt @ 1.9 g/t Au for 8 koz — matches the row exactly, but the row is stamped as_at=2025-06-30, the presentation date. The table header prints its own vintage, "CONSTRAINED (April 2023)", and 11 approved Sandstone rows draw