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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).

Castelo de Sonhos

Pará, Brazil · DevelopingUnverified

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	—	—	—	—
Indicated	53.10 Mt	1.00 g/t	1.80 Moz	04 Oct 2021
Inferred	26.00 Mt	0.90 g/t	0.70 Moz	04 Oct 2021
Total Resources	40.40 Mt	0.85 g/t	1.10 Moz	04 Oct 2021
Proved	—	—	—	—
Probable	38.70 Mt	1.10 g/t	1.36 Moz	04 Oct 2021
Total Reserves	38.70 Mt	1.10 g/t	1.40 Moz	04 Oct 2021

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

0.2600 g/t Au

Price assumption

—

JORC code year

—

Peer benchmark — developing Au projects (284 with resources)Resource size P56Resource grade P46View 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: TriStar Gold Updates Economics of PFS with After-Tax 40% IRR and US$603 Million NPV5 and Provides Update on Permit · 04 Oct 2021
Reporting code: unknown
Convention: inclusive
Currency assumption: US$
Disagreement flags: 11 rows

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	Indicated	53.10 Mt	1.00 g/t	1.80 Moz	04 Oct 2021	Table 5. Mineral resource estimate for the Castelo de Sonhos gold project — Project TotalUnverified Evidence record Castelo de Sonhos Indicated · Au · as at 2021-10-04 Reported figure Area Whole project Basis 100% Ore tonnes (t) 53100000.0000 Grade 1.0000 Contained (oz) 1800000.0000 Classification Resource Source trail TriStar Gold Updates Economics of PFS with After-Tax 40% IRR and US$603 Million NPV5 and Provides Update on Permit Table 5. Mineral resource estimate for the Castelo de Sonhos gold project — Project Total Published 2025-05-05 Verification Approved; not independently verified · Model extracted QA INFO: recompute differs 5.16% from the printed contained figure, but the printed tonnes/grade/contained carry ±7.87% rounding granularity (capped per component; the true half-step band of coarse prints is wider) and the remainder sits under the warn threshold — treated as reconciled. Copies a pre-filled issue record so you can send it through your normal channel.

Total

Inferred

26.00 Mt

0.90 g/t

0.70 Moz

04 Oct 2021

Table 5. Mineral resource estimate for the Castelo de Sonhos gold project — Project TotalUnverified

notes (3)

Source: TriStar Gold Updates Economics of PFS with After-Tax 40% IRR and US$603 Million NPV5 and Provides Update on Permit · published 05 May 2025

Ref: Table 5. Mineral resource estimate for the Castelo de Sonhos gold project — Project Total

Unknown code — Reporting code not yet captured for this row.
Cutoff 0.26 g/t Au — Cut-off grade assumption from the source statement.

QA notes:

QA INFO: inclusive-of-reserves flag cleared on an inferred row — reserves derive from M&I only, so the flag is meaningless on inferred. QA INFO: recompute differs 7.48% from the printed contained figure, but the printed tonnes/grade/contained carry ±13.48% rounding granularity (capped per component; the true half-step band of coarse prints is wider) and the remainder sits under the warn threshold — treated as reconciled.

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	38.70 Mt	1.10 g/t	1.40 Moz	04 Oct 2021	Table 6. Mineral Reserve estimates — Castelo de Sonhos — Project TotalUnverified Evidence record Castelo de Sonhos Total Reserve · Au · as at 2021-10-04 Reported figure Area Whole project Basis 100% Ore tonnes (t) 38700000.0000 Grade 1.1000 Contained (oz) 1400000.0000 Classification Reserve Source trail TriStar Gold Updates Economics of PFS with After-Tax 40% IRR and US$603 Million NPV5 and Provides Update on Permit Table 6. Mineral Reserve estimates — Castelo de Sonhos — Project Total Published 2025-05-05 Verification Approved; not independently verified · Model extracted QA INFO: recompute differs 2.24% from the printed contained figure, but the printed tonnes/grade/contained carry ±8.25% rounding granularity (capped per component; the true half-step band of coarse prints is wider) and the remainder sits under the warn threshold — treated as reconciled. Copies a pre-filled issue record so you can send it through your normal channel.	notes (3) Source: TriStar Gold Updates Economics of PFS with After-Tax 40% IRR and US$603 Million NPV5 and Provides Update on Permit · published 05 May 2025 Ref: Table 6. Mineral Reserve estimates — Castelo de Sonhos — Project Total Unknown code — Reporting code not yet captured for this row. Cutoff 0.26 g/t Au — Cut-off grade assumption from the source statement. QA notes: QA INFO: recompute differs 2.24% from the printed contained figure, but the printed tonnes/grade/contained carry ±8.25% rounding granularity (capped per component; the true half-step band of coarse prints is wider) and the remainder sits under the warn threshold — treated as reconciled.
Esperança Center	Probable	11.40 Mt	0.78 g/t	0.29 Moz	04 Oct 2021	Table 6. Mineral Reserve estimates — Castelo de SonhosUnverified Evidence record Castelo de Sonhos Probable · Au · as at 2021-10-04 Reported figure Area Esperança Center Basis 100% Ore tonnes (t) 11400000.0000 Grade 0.7800 Contained (oz) 290000.0000 Classification Reserve Source trail TriStar Gold Updates Economics of PFS with After-Tax 40% IRR and US$603 Million NPV5 and Provides Update on Permit Table 6. Mineral Reserve estimates — Castelo de Sonhos Published 2025-05-05 Verification Approved; not independently verified · Model extracted QA INFO: recompute differs 1.42% from the printed contained figure, but the printed tonnes/grade/contained carry ±2.80% rounding granularity (capped per component; the true half-step band of coarse prints is wider) and the remainder sits under the warn threshold — treated as reconciled. Copies a pre-filled issue record so you can send it through your normal channel.	notes (3) Source: TriStar Gold Updates Economics of PFS with After-Tax 40% IRR and US$603 Million NPV5 and Provides Update on Permit
Esperança East	Probable	3.10 Mt	0.82 g/t	0.08 Moz	04 Oct 2021	Table 6. Mineral Reserve estimates — Castelo de SonhosUnverified Evidence record Castelo de Sonhos Probable · Au · as at 2021-10-04 Reported figure Area Esperança East Basis 100% Ore tonnes (t) 3100000.0000 Grade 0.8200 Contained (oz) 80000.0000 Classification Reserve Source trail TriStar Gold Updates Economics of PFS with After-Tax 40% IRR and US$603 Million NPV5 and Provides Update on Permit Table 6. Mineral Reserve estimates — Castelo de Sonhos Published 2025-05-05 Verification Approved; not independently verified · Model extracted QA INFO: recompute differs 2.16% from the printed contained figure, but the printed tonnes/grade/contained carry ±8.22% rounding granularity (capped per component; the true half-step band of coarse prints is wider) and the remainder sits under the warn threshold — treated as reconciled. Copies a pre-filled issue record so you can send it through your normal channel.	notes (3) Source: TriStar Gold Updates Economics of PFS with After-Tax 40% IRR and US$603 Million NPV5 and Provides Update on Permit
Esperança South	Probable	24.20 Mt	1.28 g/t	0.99 Moz	04 Oct 2021	Table 6. Mineral Reserve estimates — Castelo de SonhosUnverified Evidence record Castelo de Sonhos Probable · Au · as at 2021-10-04 Reported figure Area Esperança South Basis 100% Ore tonnes (t) 24200000.0000 Grade 1.2800 Contained (oz) 990000.0000 Classification Reserve Source trail TriStar Gold Updates Economics of PFS with After-Tax 40% IRR and US$603 Million NPV5 and Provides Update on Permit Table 6. Mineral Reserve estimates — Castelo de Sonhos Published 2025-05-05 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: TriStar Gold Updates Economics of PFS with After-Tax 40% IRR and US$603 Million NPV5 and Provides Update on Permit · published 05 May 2025 Ref: Table 6. Mineral Reserve estimates — Castelo de Sonhos