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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).

El Peñon

Antofagasta, Chile · 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	1.00 Mt	3.79 g/t	0.12 Moz	30 June 2025
Indicated	3.80 Mt	2.69 g/t	0.33 Moz	30 June 2025
Inferred	18.40 Mt	1.15 g/t	0.68 Moz	30 June 2025
Total Resources	23.20 Mt	1.52 g/t	1.13 Moz	30 June 2025
Proved	1.10 Mt	4.37 g/t	0.15 Moz	30 June 2025
Probable	4.00 Mt	3.65 g/t	0.47 Moz	30 June 2025
Total Reserves	5.10 Mt	3.81 g/t	0.62 Moz	30 June 2025

Ag

Category	Tonnes (Mt)	Grade (g/t Ag)	Contained (Moz Ag)	As at
Measured	1.00 Mt	138.00 g/t	4.44 Moz	30 June 2025
Indicated	3.80 Mt	91.00 g/t	11.12 Moz	30 June 2025
Inferred	18.40 Mt	39.00 g/t	23.07 Moz	30 June 2025
Total Resources	23.20 Mt	51.78 g/t	38.63 Moz	30 June 2025
Proved	1.10 Mt	187.00 g/t	6.61 Moz	30 June 2025
Probable

Cut-off grade

148.3900 g/t Ag · 148.3900 g/t Au

Price assumption

US$27.00/oz · US$25.00/oz

JORC code year

—

Peer benchmark — producing Au projects (282 with resources)Resource size P40Resource grade P51View 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: 40-F: 40-F — aif-2025ye.htm (AIF, backfilled exhibit) · 30 June 2025
Reporting code: SK-1300
Convention: exclusive
Currency assumption: US$

Current R&R

Resources

Category	Tonnes (Mt)	Au		Ag		As at	Source	Provenance
Category	Tonnes (Mt)	Grade (g/t Au)	Contained (Moz Au)	Grade (g/t Ag)	Contained (Moz Ag)	As at	Source	Provenance
Measured	1.00 Mt	3.79 g/t	0.12 Moz	138.00 g/t	4.44 Moz	30 June 2025	El Peñon Mineral Resources tableUnverified Evidence record El Peñon Measured · Ag · as at 2025-06-30 Reported figure Area Whole project Basis 100% Ore tonnes (t) 1000000.0000 Grade 138.0000 Contained (oz) 4436803.0265 Classification Resource Source trail 40-F: 40-F — aif-2025ye.htm (AIF, backfilled exhibit) El Peñon Mineral Resources table Published 2026-02-18 Verification Approved; not independently verified · Model extracted Copies a pre-filled issue record so you can send it through your normal channel.

Reserves

Category	Tonnes (Mt)	Au		Ag		As at	Source	Provenance
Category	Tonnes (Mt)	Grade (g/t Au)	Contained (Moz Au)	Grade (g/t Ag)	Contained (Moz Ag)	As at	Source	Provenance
Proved	1.10 Mt	4.37 g/t	0.15 Moz	187.00 g/t	6.61 Moz	30 June 2025	El Peñon Mineral Reserves tableUnverified Evidence record El Peñon Proved · Au · as at 2025-06-30 Reported figure Area Whole project Basis 100% Ore tonnes (t) 1100000.0000 Grade 4.3700 Contained (oz) 154548.6388 Classification Reserve Source trail 40-F: 40-F — aif-2025ye.htm (AIF, backfilled exhibit) El Peñon Mineral Reserves table Published 2026-02-18 Verification Approved; not independently verified · Model extracted Copies a pre-filled issue record so you can send it through your normal channel.	notes (2) Source: 40-F: 40-F — aif-2025ye.htm (AIF, backfilled exhibit) · published 18 Feb 2026 Ref: El Peñon Mineral Reserves table SK-1300 — Reporting code of record: SK-1300 @ US$ 25/oz — Metal price assumption used to derive this estimate.
Probable	4.00 Mt	3.65 g/t	0.47 Moz	120.00 g/t	15.43 Moz	30 June 2025	El Peñon Mineral Reserves tableUnverified Evidence record El Peñon Probable · Au · as at 2025-06-30 Reported figure Area Whole project Basis 100% Ore tonnes (t) 4000000.0000 Grade 3.6500 Contained (oz) 469400.8999 Classification Reserve Source trail 40-F: 40-F — aif-2025ye.htm (AIF, backfilled exhibit) El Peñon Mineral Reserves table Published 2026-02-18 Verification Approved; not independently verified · Model extracted Copies a pre-filled issue record so you can send it through your normal channel.	notes (2) Source: 40-F: 40-F — aif-2025ye.htm (AIF, backfilled exhibit) · published 18 Feb 2026 Ref: El Peñon Mineral Reserves table
Total Reserves	5.10 Mt	3.81 g/t	0.62 Moz	134.00 g/t	21.97 Moz	30 June 2025	El Peñon Mineral Reserves tableUnverified Evidence record El Peñon Total Reserve · Ag · as at 2025-06-30 Reported figure Area Whole project Basis 100% Ore tonnes (t) 5100000.0000 Grade 134.0000 Contained (oz) 21971820.2050 Classification Reserve Source trail 40-F: 40-F — aif-2025ye.htm (AIF, backfilled exhibit) El Peñon Mineral Reserves table Published 2026-02-18 Verification Approved; not independently verified · Model extracted Copies a pre-filled issue record so you can send it through your normal channel.	notes (2) Source: 40-F: 40-F — aif-2025ye.htm (AIF, backfilled exhibit) · published 18 Feb 2026 Ref: El Peñon Mineral Reserves table