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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).

MSG

Goiás, Brazil · 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.

Category	Tonnes (Mt)	Grade (g/t Au)	Contained (Moz Au)	As at
Measured	2.15 Mt	4.03 g/t	0.28 Moz	30 Nov 2025
Indicated	10.09 Mt	2.52 g/t	0.82 Moz	30 Nov 2025
Inferred	22.28 Mt	2.88 g/t	2.07 Moz	30 Nov 2025
Total Resources	34.52 Mt	2.85 g/t	3.16 Moz	30 Nov 2025
Proved	2.41 Mt	2.24 g/t	0.17 Moz	30 Nov 2025
Probable	9.52 Mt	1.89 g/t	0.58 Moz	30 Nov 2025
Total Reserves	11.93 Mt	1.96 g/t	0.75 Moz	30 Nov 2025

Cut-off grade

1.2900 g/t Au · 0.3100 g/t Au · 1.8500 g/t Au · 0.4100 g/t Au

Price assumption

US$3100.00/oz · US$2600.00/oz

JORC code year

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Peer benchmark — producing Au projects (282 with resources)Resource size P62Resource grade P73View 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/A: FORM 20-F/A · 30 Nov 2025
Reporting code: SK-1300
Convention: exclusive
Currency assumption: US$

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	Total Resources	34.52 Mt	2.85 g/t	3.16 Moz	30 Nov 2025	derived from 6 rows Measured: Measured and Indicated Exclusive Mineral Resource Estimates (as of December 31, 2025) — Gold table / MSG (Serra Grande) Exclusive Mineral Resources

Reserves

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	Total Reserves	11.93 Mt	1.96 g/t	0.75 Moz	30 Nov 2025	derived from 4 rows Proved: Proven & Probable Mineral Reserve Estimates (as of December 31, 2025) — Gold table / MSG (Serra Grande) Mineral Reserve Proved: Proven & Probable Mineral Reserve Estimates (as of December 31, 2025) — Gold table / MSG (Serra Grande) Mineral Reserve Probable: Proven & Probable Mineral Reserve Estimates (as of December 31, 2025) — Gold table / MSG (Serra Grande) Mineral Reserve Probable: Proven & Probable Mineral Reserve Estimates (as of December 31, 2025) — Gold table / MSG (Serra Grande) Mineral Reserve Unverified Evidence record MSG Total Reserve · Au · as at 2025-11-30 Reported figure Area Whole project Basis 100% Ore tonnes (t) 11930000 Grade 1.9614585079631182 Contained (oz) 752770 Classification Reserve Source trail 20-F/A: FORM 20-F/A Proven & Probable Mineral Reserve Estimates (as of December 31, 2025) — Gold table / MSG (Serra Grande) Mineral Reserve · contributes Proved 20-F/A: FORM 20-F/A Proven & Probable Mineral Reserve Estimates (as of December 31, 2025) — Gold table / MSG (Serra Grande) Mineral Reserve · contributes Proved 20-F/A: FORM 20-F/A Proven & Probable Mineral Reserve Estimates (as of December 31, 2025) — Gold table / MSG (Serra Grande) Mineral Reserve · contributes Probable 20-F/A: FORM 20-F/A Proven & Probable Mineral Reserve Estimates (as of December 31, 2025) — Gold table / MSG (Serra Grande) Mineral Reserve · contributes Probable Verification Approved; not independently verified · Model extracted Copies a pre-filled issue record so you can send it through your normal channel.	—
Open Pit	Proved	0.39 Mt	1.36 g/t	0.02 Moz	30 Nov 2025	Proven & Probable Mineral Reserve Estimates (as of December 31, 2025) — Gold table / MSG (Serra Grande) Mineral ReserveUnverified Evidence record MSG Proved · Au · as at 2025-11-30 Reported figure Area Open Pit Basis 100% Ore tonnes (t) 390000.0000 Grade 1.3600 Contained (oz) 17110.0000 Classification Reserve Source trail 20-F/A: FORM 20-F/A Proven & Probable Mineral Reserve Estimates (as of December 31, 2025) — Gold table / MSG (Serra Grande) Mineral Reserve Published 2026-04-29 Verification Approved; not independently verified · Model extracted Copies a pre-filled issue record so you can send it through your normal channel.	notes (3) Source: 20-F/A: FORM 20-F/A · published 29 Apr 2026 Ref: Proven & Probable Mineral Reserve Estimates (as of December 31, 2025) — Gold table / MSG (Serra Grande) Mineral Reserve
Open Pit	Probable	1.06 Mt	1.18 g/t	0.04 Moz	30 Nov 2025	Proven & Probable Mineral Reserve Estimates (as of December 31, 2025) — Gold table / MSG (Serra Grande) Mineral ReserveUnverified Evidence record MSG Probable · Au · as at 2025-11-30 Reported figure Area Open Pit Basis 100% Ore tonnes (t) 1060000.0000 Grade 1.1800 Contained (oz) 40470.0000 Classification Reserve Source trail 20-F/A: FORM 20-F/A Proven & Probable Mineral Reserve Estimates (as of December 31, 2025) — Gold table / MSG (Serra Grande) Mineral Reserve Published 2026-04-29 Verification Approved; not independently verified · Model extracted Copies a pre-filled issue record so you can send it through your normal channel.	notes (3) Source: 20-F/A: FORM 20-F/A · published 29 Apr 2026 Ref: Proven & Probable Mineral Reserve Estimates (as of December 31, 2025) — Gold table / MSG (Serra Grande) Mineral Reserve
Underground	Proved	2.02 Mt	2.41 g/t	0.16 Moz	30 Nov 2025	Proven & Probable Mineral Reserve Estimates (as of December 31, 2025) — Gold table / MSG (Serra Grande) Mineral ReserveUnverified Evidence record MSG Proved · Au · as at 2025-11-30 Reported figure Area Underground Basis 100% Ore tonnes (t) 2020000.0000 Grade 2.4100 Contained (oz) 156170.0000 Classification Reserve Source trail 20-F/A: FORM 20-F/A Proven & Probable Mineral Reserve Estimates (as of December 31, 2025) — Gold table / MSG (Serra Grande) Mineral Reserve Published 2026-04-29 Verification Approved; not independently verified · Model extracted Copies a pre-filled issue record so you can send it through your normal channel.	notes (3) Source: 20-F/A: FORM 20-F/A · published 29 Apr 2026 Ref: Proven & Probable Mineral Reserve Estimates (as of December 31, 2025) — Gold table / MSG (Serra Grande) Mineral Reserve
Underground	Probable	8.46 Mt	1.98 g/t	0.54 Moz	30 Nov 2025	Proven & Probable Mineral Reserve Estimates (as of December 31, 2025) — Gold table / MSG (Serra Grande) Mineral ReserveUnverified Evidence record MSG Probable · Au · as at 2025-11-30 Reported figure Area Underground Basis 100% Ore tonnes (t) 8460000.0000 Grade 1.9800 Contained (oz) 539020.0000 Classification Reserve Source trail 20-F/A: FORM 20-F/A Proven & Probable Mineral Reserve Estimates (as of December 31, 2025) — Gold table / MSG (Serra Grande) Mineral Reserve Published 2026-04-29 Verification Approved; not independently verified · Model extracted Copies a pre-filled issue record so you can send it through your normal channel.	notes (3) Source: 20-F/A: FORM 20-F/A · published 29 Apr 2026 Ref: Proven & Probable Mineral Reserve Estimates (as of December 31, 2025) — Gold table / MSG (Serra Grande) Mineral Reserve