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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).

Casposo

San Juan, 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.

Au

Category	Tonnes (Mt)	Grade (g/t Au)	Contained (Moz Au)	As at
Measured	0.02 Mt	3.89 g/t	1.95 koz	30 Apr 2024
Indicated	2.26 Mt	1.48 g/t	0.11 Moz	30 June 2025
Inferred	0.17 Mt	7.52 g/t	0.04 Moz	30 June 2025
Total Resources	2.84 Mt	1.85 g/t	0.17 Moz	30 June 2025
Proved	—	—	—	—
Probable	—	—	—	—
Total Reserves	—	—	—	—

Ag

Category	Tonnes (Mt)	Grade (g/t Ag)	Contained (Moz Ag)	As at
Measured	0.02 Mt	92.39 g/t	0.05 Moz	30 Apr 2024
Indicated	2.26 Mt	59.91 g/t	4.35 Moz	30 June 2025
Inferred	0.17 Mt	68.54 g/t	0.38 Moz	30 June 2025
Total Resources	2.84 Mt	62.35 g/t	5.68 Moz	30 June 2025
Proved	—	—	—	—
Probable

Cut-off grade

1.5000 g/t Au · 1.5000 g/t Ag · 1.2400 g/t Au · 1.1500 g/t Ag · 1.1500 g/t Au · 1.0100 g/t Ag · 1.0100 g/t Au · 0.8500 g/t Ag · 1.2400 g/t Ag · 0.8500 g/t Au · 2.0000 g/t Au · 2.0000 g/t Ag

Price assumption

A$2500.00/oz

JORC code year

2012

Peer benchmark — developing Au projects (284 with resources)Resource size P20Resource grade P75View 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: Austral Gold Announces Updated Mineral Reserve and Resource Estimate for Casposo Mine · 30 June 2025
Reporting code: JORC 2012
Convention: inclusive
Currency assumption: A$
Disagreement flags: 6 rows

Current R&R

Resources

Area	Category	Tonnes (Mt)	Au		Ag		As at	Source	Provenance
Area	Category	Tonnes (Mt)	Grade (g/t Au)	Contained (Moz Au)	Grade (g/t Ag)	Contained (Moz Ag)	As at	Source	Provenance
Total	Measured	0.02 Mt	3.89 g/t	1.95 koz	92.39 g/t	0.05 Moz	30 Apr 2024	Summary of Mineral Resources Statement All Deposits - April 30, 2024Unverified

Total

Indicated

2.26 Mt

1.48 g/t

0.11 Moz

59.91 g/t

4.35 Moz

30 June 2025

Total Mineral Resources Estimation Statement - as of June 30, 2025Unverified

notes (5)

Source: Austral Gold Announces Updated Mineral Reserve and Resource Estimate for Casposo Mine · published 13 Oct 2025

Ref: Total Mineral Resources Estimation Statement - as of June 30, 2025

JORC 2012 — Reporting code of record: JORC 2012
Cutoff 1.24 g/t Ag — Cut-off grade assumption from the source statement.
@ A$ 2,500/oz — Metal price assumption used to derive this estimate.
inc — Stated Resources are inclusive of Reserves. Set Resources: Excl. Reserves to net them out.

QA notes:

QA WARN: identical figures appear under ANOTHER area label of this project in the same document — likely one printed estimate stored twice (a summary/grouping line duplicating its leaf). Keep one copy; reject the relabelled twin. QA WARN: tonnes/contained equal the SUM of 2 sibling row(s) of the same classification/category/commodity (Manantiales, ALL) — likely a printed multi-deposit rollup/subtotal. Policy keeps leaf rows and printed whole-project Totals only; reject mid-level rollups (double-count).