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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).

Goose Mine

Nunavut, Canada · 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	—	—	—	—
Indicated	15.91 Mt	7.40 g/t	3.79 Moz	31 Dec 2025
Inferred	9.31 Mt	7.63 g/t	2.28 Moz	31 Dec 2025
Total Resources	14.36 Mt	7.99 g/t	3.69 Moz	31 Dec 2025
Proved	—	—	—	—
Probable	10.90 Mt	6.79 g/t	2.38 Moz	31 Dec 2025
Total Reserves	11.33 Mt	6.67 g/t	2.43 Moz	31 Dec 2025

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

2.2000 g/t Au · 0.9000 g/t Au · 1.6500 g/t Au · 4.6400 g/t Au

Price assumption

US$2500.00/oz · US$1750.00/oz

JORC code year

—

Peer benchmark — producing Au projects (282 with resources)Resource size P70Resource grade P94View 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: FORM 40-F — tm266740d1_ex99-1.htm (AIF exhibit) · 31 Dec 2025
Reporting code: SK-1300
Convention: inclusive
Currency assumption: US$
Disagreement flags: 6 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	15.91 Mt	7.40 g/t	3.79 Moz	31 Dec 2025	Goose Claims Group Indicated Mineral Resource StatementUnverified Evidence record Goose Mine Indicated · Au · as at 2025-12-31 Reported figure Area Whole project Basis 100% Ore tonnes (t) 15910000.0000 Grade 7.4000 Contained (oz) 3790000.0000 Classification Resource Source trail 40-F: FORM 40-F — tm266740d1_ex99-1.htm (AIF exhibit) Goose Claims Group Indicated Mineral Resource Statement Published 2026-03-11 Verification Approved; not independently verified · Model extracted QA WARN: mining_area 'Goose Claims Group Total' looks like a table SUBTOTAL line, not a leaf area — approving it alongside the leaf areas double-counts. Reject it (or reject the leaves) before approval. \| QA fix: Figures are the printed 'Total Indicated Mineral Resources \| 15,910 \| 7.40 \| 3,790' line of the Goose Claims Group statement (L2981-2982; AIF summary L1066-1067). That line is the WHOLE-PROJECT total for the Goose Mine as stored, not a mining area - the label is the table's own total caption. Clearing the area makes it the project total row (same s Copies a pre-filled issue record so you can send it through your normal channel.

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	Probable	10.90 Mt	6.79 g/t	2.38 Moz	31 Dec 2025	Goose Mine Probable Mineral Reserves StatementUnverified Evidence record Goose Mine Probable · Au · as at 2025-12-31 Reported figure Area Whole project Basis 100% Ore tonnes (t) 10900000.0000 Grade 6.7900 Contained (oz) 2380000.0000 Classification Reserve Source trail 40-F: FORM 40-F — tm266740d1_ex99-1.htm (AIF exhibit) Goose Mine Probable Mineral Reserves Statement Published 2026-03-11 Verification Approved; not independently verified · Model extracted QA INFO: inclusive-of-reserves flag cleared — the flag describes resource statements; reserve rows carry none. QA WARN: tonnes/contained equal the SUM of 3 sibling row(s) of the same classification/category/commodity (Open Pits Subtotal, Umwelt Underground, Stockpiles) — likely a printed multi-deposit rollup/subtotal. Policy keeps leaf rows and printed whole-project Totals only; reject mid-level rollups (double-count). Copies a pre-filled issue record so you can send it through your normal channel.	notes (2) Source: 40-F: FORM 40-F — tm266740d1_ex99-1.htm (AIF exhibit) · published 11 Mar 2026 Ref: Goose Mine Probable Mineral Reserves Statement SK-1300 — Reporting code of record: SK-1300 QA notes: QA INFO: inclusive-of-reserves flag cleared — the flag describes resource statements; reserve rows carry none. QA WARN: tonnes/contained equal the SUM of 3 sibling row(s) of the same classification/category/commodity (Open Pits Subtotal, Umwelt Underground, Stockpiles) — likely a printed multi-deposit rollup/subtotal. Policy keeps leaf rows and printed whole-project Totals only; reject mid-level rollups (double-count).
Total	Total Reserves	11.33 Mt	6.67 g/t	2.43 Moz	31 Dec 2025	derived from 2 rows Probable: Goose Mine Probable Mineral Reserves Statement Probable: Goose Mine Probable Mineral Reserves Statement Unverified Evidence record Goose Mine Total Reserve · Au · as at 2025-12-31 Reported figure Area Whole project Basis 100% Ore tonnes (t) 11330000 Grade 6.673106796116505 Contained (oz) 2432000 Classification Reserve Source trail 40-F: FORM 40-F — tm266740d1_ex99-1.htm (AIF exhibit) Goose Mine Probable Mineral Reserves Statement · contributes Probable 40-F: FORM 40-F — tm266740d1_ex99-1.htm (AIF exhibit) Goose Mine Probable Mineral Reserves Statement · contributes Probable Verification Approved; not independently verified · Model extracted Copies a pre-filled issue record so you can send it through your normal channel.
Goose Main Open Pit	Probable	3.10 Mt	4.79 g/t	0.47 Moz	31 Dec 2025	Goose Mine Probable Mineral Reserves StatementUnverified Evidence record Goose Mine Probable · Au · as at 2025-12-31 Reported figure Area Goose Main Open Pit Basis 100% Ore tonnes (t) 3100000.0000 Grade 4.7900 Contained (oz) 470000.0000 Classification Reserve Source trail 40-F: FORM 40-F — tm266740d1_ex99-1.htm (AIF exhibit) Goose Mine Probable Mineral Reserves Statement Published 2026-03-11 Verification Approved; not independently verified · Model extracted QA INFO: inclusive-of-reserves flag cleared — the flag describes resource statements; reserve rows carry none. QA INFO: recompute differs 1.58% from the printed contained figure, but the printed tonnes/grade/contained carry ±2.78% 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 (4) Source: 40-F: FORM 40-F — tm266740d1_ex99-1.htm (AIF exhibit)
Llama Open Pit	Probable	1.40 Mt	6.39 g/t	0.29 Moz	31 Dec 2025	Goose Mine Probable Mineral Reserves StatementUnverified Evidence record Goose Mine Probable · Au · as at 2025-12-31 Reported figure Area Llama Open Pit Basis 100% Ore tonnes (t) 1400000.0000 Grade 6.3900 Contained (oz) 290000.0000 Classification Reserve Source trail 40-F: FORM 40-F — tm266740d1_ex99-1.htm (AIF exhibit) Goose Mine Probable Mineral Reserves Statement Published 2026-03-11 Verification Approved; not independently verified · Model extracted QA INFO: inclusive-of-reserves flag cleared — the flag describes resource statements; reserve rows carry none. Copies a pre-filled issue record so you can send it through your normal channel.	notes (4) Source: 40-F: FORM 40-F — tm266740d1_ex99-1.htm (AIF exhibit) · published 11 Mar 2026 Ref: Goose Mine Probable Mineral Reserves Statement
Stockpiles	Probable	0.43 Mt	3.71 g/t	0.05 Moz	31 Dec 2025	Goose Mine Probable Mineral Reserves StatementUnverified Evidence record Goose Mine Probable · Au · as at 2025-12-31 Reported figure Area Stockpiles Basis 100% Ore tonnes (t) 430000.0000 Grade 3.7100 Contained (oz) 52000.0000 Classification Reserve Source trail 40-F: FORM 40-F — tm266740d1_ex99-1.htm (AIF exhibit) Goose Mine Probable Mineral Reserves Statement Published 2026-03-11 Verification Approved; not independently verified · Model extracted QA INFO: inclusive-of-reserves flag cleared — the flag describes resource statements; reserve rows carry none. QA INFO: recompute differs 1.37% from the printed contained figure, but the printed tonnes/grade/contained carry ±2.26% 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 (4) Source: 40-F: FORM 40-F — tm266740d1_ex99-1.htm (AIF exhibit)
Umwelt Open Pit	Probable	2.30 Mt	7.91 g/t	0.58 Moz	31 Dec 2025	Goose Mine Probable Mineral Reserves StatementUnverified Evidence record Goose Mine Probable · Au · as at 2025-12-31 Reported figure Area Umwelt Open Pit Basis 100% Ore tonnes (t) 2300000.0000 Grade 7.9100 Contained (oz) 580000.0000 Classification Reserve Source trail 40-F: FORM 40-F — tm266740d1_ex99-1.htm (AIF exhibit) Goose Mine Probable Mineral Reserves Statement Published 2026-03-11 Verification Approved; not independently verified · Model extracted QA INFO: inclusive-of-reserves flag cleared — the flag describes resource statements; reserve rows carry none. Copies a pre-filled issue record so you can send it through your normal channel.	notes (4) Source: 40-F: FORM 40-F — tm266740d1_ex99-1.htm (AIF exhibit) · published 11 Mar 2026 Ref: Goose Mine Probable Mineral Reserves Statement
Umwelt Underground	Probable	3.70 Mt	8.26 g/t	0.98 Moz	31 Dec 2025	Goose Mine Probable Mineral Reserves StatementUnverified Evidence record Goose Mine Probable · Au · as at 2025-12-31 Reported figure Area Umwelt Underground Basis 100% Ore tonnes (t) 3700000.0000 Grade 8.2600 Contained (oz) 980000.0000 Classification Reserve Source trail 40-F: FORM 40-F — tm266740d1_ex99-1.htm (AIF exhibit) Goose Mine Probable Mineral Reserves Statement Published 2026-03-11 Verification Approved; not independently verified · Model extracted QA INFO: inclusive-of-reserves flag cleared — the flag describes resource statements; reserve rows carry none. Copies a pre-filled issue record so you can send it through your normal channel.	notes (4) Source: 40-F: FORM 40-F — tm266740d1_ex99-1.htm (AIF exhibit) · published 11 Mar 2026 Ref: Goose Mine Probable Mineral Reserves Statement