View settings100% · M+I+I · Resources excl. reserves · Native commodities

Reporting assumptions

These choices persist and are added to shared URLs.

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).

Cauchari

Argentina · Developing · 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 / Vol	Grade (ppm Li)	Contained (Mt LCE)	As at
Measured	660.00 Mm³ (brine volume)	530 ppm Li	1.86 Mt LCE	31 Dec 2025
Indicated	1,080.00 Mm³ (brine volume)	450 ppm Li	2.61 Mt LCE	31 Dec 2025
Inferred	600.00 Mm³ (brine volume)	470 ppm Li	1.49 Mt LCE	31 Dec 2025
Total Resources	1,910.00 Mm³ (brine volume)	471 ppm Li	4.79 Mt LCE	31 Dec 2025
Proved	80.00 Mm³ (brine volume)	570 ppm Li	0.27 Mt LCE	31 Dec 2025
Probable	350.00 Mm³ (brine volume)	490 ppm Li	0.90 Mt LCE	31 Dec 2025
Total Reserves	430.00 Mm³ (brine volume)	505 ppm Li	1.17 Mt LCE	31 Dec 2025

Sub-category rows are as disclosed (no Reserves-treatment netting); the Total rows honour the Resources treatment and Inferred-policy toggles, so components may not sum to the Total.

Dotted tonnes/grade are derived under the active Resources treatment: tonnes are netted of (or grossed by) the reserve tonnage alongside contained, and grade is re-derived as netted contained ÷ netted tonnes — not the published figures.

Cut-off grade

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Price assumption

A$17790.00/t

JORC code year

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Peer benchmark — developing Li projects (28 with resources)Resource size P73Resource grade P77View 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 · 31 Dec 2025
Reporting code: SK-1300
Convention: inclusive
Currency assumption: A$
Disagreement flags: 1 row

Current R&R

Resources

Category	Tonnes / Vol	Li		As at	Source	Provenance
Category	Tonnes / Vol	Grade (ppm Li)	Contained (Mt LCE)	As at	Source	Provenance
Measured	660.00 Mm³(brine volume)	530 ppm Li	1.86 Mt LCE	31 Dec 2025	Mineral Resources — Lithium brine (inclusive) table

Reserves

Category	Tonnes / Vol	Li		As at	Source	Provenance
Category	Tonnes / Vol	Grade (ppm Li)	Contained (Mt LCE)	As at	Source	Provenance
Proved	80.00 Mm³(brine volume)	570 ppm Li	0.27 Mt LCE	31 Dec 2025	Mineral Reserves — Lithium brine tableUnverified Evidence record Cauchari Proved · Li · as at 2025-12-31 Reported figure Area Whole project Basis 100% Ore tonnes (t) 80000000.0000 Grade 570.0000 Contained (t LCE) 266139.2500 Classification Reserve Source trail 20-F: 20-F Mineral Reserves — Lithium brine table Published 2026-02-19 Verification Approved; not independently verified · Model extracted QA WARN: duplicate row — this (project, mining area, commodity, classification, category, as-at date) appears 2 times in the document. Keep one and reject the extras. QA WARN: recomputed contained 45600.0000 t Li vs reported 50000.00 t Li (8.80% disagreement) Brine context: recompute/reported ratio 0.91 is OUTSIDE the expected 1.25–2.08 reserve band — averaging/recovery physics does not explain this gap; verify the transcription of the printed Amount. \| QA OVERRIDE (claude-agent-qa): 8.8% gap consistent with brine volume-as-tonnes at density ~1.1-1.2; printed reported Amount is canonical and verified in the printed table. \| QA FIX (claude-agent-qa, 2026-07-12): LCE re-derived at the issuer-printed factor 5.322785 (was 5.324369) — see PR #144. Copies a pre-filled issue record so you can send it through your normal channel.	notes (6) Source: 20-F: 20-F · published 19 Feb 2026 Ref: Mineral Reserves — Lithium brine table SK-1300 — Reporting code of record: SK-1300 @ A$ 17,790/t LCE — Metal price assumption used to derive this estimate. rec 60% — Recoverable basis: the issuer applied this recovery/processing efficiency, so contained metal is recoverable product, not in-situ. QA notes: QA WARN: duplicate row — this (project, mining area, commodity, classification, category, as-at date) appears 2 times in the document. Keep one and reject the extras. QA WARN: recomputed contained 45600.0000 t Li vs reported 50000.00 t Li (8.80% disagreement) Brine context: recompute/reported ratio 0.91 is OUTSIDE the expected 1.25–2.08 reserve band — averaging/recovery physics does not explain this gap; verify the transcription of the printed Amount. QA OVERRIDE (claude-agent-qa): 8.8% gap consistent with brine volume-as-tonnes at density ~1.1-1.2; printed reported Amount is canonical and verified in the printed table. QA FIX (claude-agent-qa, 2026-07-12): LCE re-derived at the issuer-printed factor 5.322785 (was 5.324369) — see PR #144.
Probable	350.00 Mm³(brine volume)	490 ppm Li	0.90 Mt LCE	31 Dec 2025	Mineral Reserves — Lithium brine tableUnverified Evidence record Cauchari Probable · Li · as at 2025-12-31 Reported figure Area Whole project Basis 100% Ore tonnes (t) 350000000.0000 Grade 490.0000 Contained (t LCE) 904873.4500 Classification Reserve Source trail 20-F: 20-F Mineral Reserves — Lithium brine table Published 2026-02-19 Verification Approved; not independently verified · Model extracted QA WARN: duplicate row — this (project, mining area, commodity, classification, category, as-at date) appears 2 times in the document. Keep one and reject the extras. \| QA FIX (claude-agent-qa, 2026-07-12): LCE re-derived at the issuer-printed factor 5.322785 (was 5.324369) — see PR #144. Copies a pre-filled issue record so you can send it through your normal channel.	notes (5)
Total Reserves	430.00 Mm³(brine volume)	505 ppm Li	1.17 Mt LCE	31 Dec 2025	derived from 2 rows Proved: Mineral Reserves — Lithium brine table Probable: Mineral Reserves — Lithium brine table Unverified Evidence record Cauchari Total Reserve · Li · as at 2025-12-31 Reported figure Area Whole project Basis 100% Ore tonnes (t) 430000000 Grade 504.8837209302326 Contained (t LCE) 1171012.7 Classification Reserve Source trail 20-F: 20-F Mineral Reserves — Lithium brine table · contributes Proved 20-F: 20-F Mineral Reserves — Lithium brine table · contributes Probable Verification Approved; not independently verified · Model extracted Copies a pre-filled issue record so you can send it through your normal channel.