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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).

Escobal

Guatemala · 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	2.30 Mt	0.23 g/t	0.02 Moz	30 June 2025
Indicated	14.20 Mt	0.20 g/t	0.09 Moz	30 June 2025
Inferred	1.90 Mt	0.90 g/t	0.05 Moz	30 June 2025
Total Resources	18.40 Mt	0.28 g/t	0.16 Moz	30 June 2025
Proved	2.50 Mt	0.42 g/t	0.03 Moz	30 June 2025
Probable	22.10 Mt	0.34 g/t	0.24 Moz	30 June 2025
Total Reserves	24.60 Mt	0.35 g/t	0.28 Moz	30 June 2025

Ag

Category	Tonnes (Mt)	Grade (g/t Ag)	Contained (Moz Ag)	As at
Measured	2.30 Mt	251.00 g/t	18.56 Moz	30 June 2025
Indicated	14.20 Mt	201.00 g/t	91.76 Moz	30 June 2025
Inferred	1.90 Mt	180.00 g/t	11.00 Moz	30 June 2025
Total Resources	18.40 Mt	205.08 g/t	121.32 Moz	30 June 2025
Proved	2.50 Mt	486.00 g/t	39.06 Moz	30 June 2025
Probable

Zn

Category	Tonnes (Mt)	Grade (% Zn)	Contained (Mt Zn)	As at
Measured	2.30 Mt	0.59%	0.01 Mt Zn	30 June 2025
Indicated	14.20 Mt	0.66%	0.09 Mt Zn	30 June 2025
Inferred	1.90 Mt	0.42%	0.01 Mt Zn	30 June 2025
Total Resources	18.40 Mt	0.63%	0.12 Mt Zn	30 June 2025
Proved	2.50 Mt	1.75%	0.04 Mt Zn	30 June 2025
Probable

Pb

Category	Tonnes (Mt)	Grade (% Pb)	Contained (Mt Pb)	As at
Measured	2.30 Mt	0.31%	0.01 Mt Pb	30 June 2025
Indicated	14.20 Mt	0.38%	0.05 Mt Pb	30 June 2025
Inferred	1.90 Mt	0.22%	4.18 kt Pb	30 June 2025
Total Resources	18.40 Mt	0.35%	0.07 Mt Pb	30 June 2025
Proved	2.50 Mt	1.02%	0.03 Mt Pb	30 June 2025
Probable

Cut-off grade

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Price assumption

US$20.00/oz

JORC code year

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Peer benchmark — developing Ag projects (131 with resources)Resource size P87Resource grade P99View 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		Zn		Pb		As at	Source	Provenance
Category	Tonnes (Mt)	Grade (g/t Au)	Contained (Moz Au)	Grade (g/t Ag)	Contained (Moz Ag)	Grade (% Zn)	Contained (Mt Zn)	Grade (% Pb)	Contained (Mt Pb)	As at	Source	Provenance
Measured	2.30 Mt	0.23 g/t	0.02 Moz	251.00 g/t	18.56 Moz	0.59%

Reserves

Category	Tonnes (Mt)	Au		Ag		Zn		Pb		As at	Source	Provenance
Category	Tonnes (Mt)	Grade (g/t Au)	Contained (Moz Au)	Grade (g/t Ag)	Contained (Moz Ag)	Grade (% Zn)	Contained (Mt Zn)	Grade (% Pb)	Contained (Mt Pb)	As at	Source	Provenance
Proved	2.50 Mt	0.42 g/t	0.03 Moz	486.00 g/t	39.06 Moz	1.75%	0.04 Mt Zn	1.02%	0.03 Mt Pb	30 June 2025	Escobal Mineral Reserves tableUnverified Evidence record Escobal Proved · Ag · as at 2025-06-30 Reported figure Area Whole project Basis 100% Ore tonnes (t) 2500000.0000 Grade 486.0000 Contained (oz) 39063157.0809 Classification Reserve Source trail 40-F: 40-F — aif-2025ye.htm (AIF, backfilled exhibit) Escobal 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: Escobal Mineral Reserves table SK-1300 — Reporting code of record: SK-1300 @ US$ 20/oz — Metal price assumption used to derive this estimate.
Probable	22.10 Mt	0.34 g/t	0.24 Moz	316.00 g/t	224.53 Moz	1.25%	0.28 Mt Zn	0.77%	0.17 Mt Pb	30 June 2025	Escobal Mineral Reserves tableUnverified Evidence record Escobal Probable · Ag · as at 2025-06-30 Reported figure Area Whole project Basis 100% Ore tonnes (t) 22100000.0000 Grade 316.0000 Contained (oz) 224527953.7367 Classification Reserve Source trail 40-F: 40-F — aif-2025ye.htm (AIF, backfilled exhibit) Escobal 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)
Total Reserves	24.60 Mt	0.35 g/t	0.28 Moz	333.00 g/t	263.37 Moz	1.30%	0.32 Mt Zn	0.80%	0.20 Mt Pb	30 June 2025	Escobal Mineral Reserves tableUnverified Evidence record Escobal Total Reserve · Zn · as at 2025-06-30 Reported figure Area Whole project Basis 100% Ore tonnes (t) 24600000.0000 Grade 1.3000 Contained (t Zn) 319800.0000 Classification Reserve Source trail 40-F: 40-F — aif-2025ye.htm (AIF, backfilled exhibit) Escobal 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: