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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).

La Bikina

Mexico · Exploring · 50.0% 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	—	—	—	—
Indicated	39.80 Mt	0.37 g/t	0.40 Moz	31 Dec 2025
Inferred	3.20 Mt	0.20 g/t	0.02 Moz	31 Dec 2025
Total Resources	39.80 Mt	0.37 g/t	0.40 Moz	31 Dec 2024
Proved	—	—	—	—
Probable	—	—	—	—
Total Reserves	—	—	—	—

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.

Ag

Category	Tonnes (Mt)	Grade (g/t Ag)	Contained (Moz Ag)	As at
Measured	—	—	—	—
Indicated	39.80 Mt	13.99 g/t	18.00 Moz	31 Dec 2025
Inferred	3.20 Mt	11.00 g/t	1.00 Moz	31 Dec 2025
Total Resources	39.80 Mt	13.99 g/t	18.00 Moz	31 Dec 2024
Proved	—	—	—	—
Probable

Cut-off grade

—

Price assumption

US$2300.00/oz · US$2000.00/oz

JORC code year

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Peer benchmark — exploring Au projects (297 with resources)Resource size P49Resource grade P19View 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: 10-K: 10-K · 31 Dec 2025
Reporting code: SK-1300
Convention: exclusive
Currency assumption: US$
Disagreement flags: 5 rows

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
Indicated	39.80 Mt	0.37 g/t	0.40 Moz	13.99 g/t	18.00 Moz	31 Dec 2025	Gold Resources at December 31, 2025Unverified Evidence record La Bikina Indicated · Au · as at 2025-12-31 Reported figure Area Whole project Basis attributable Ore tonnes (t) 39800000 Grade 0.3700 Contained (oz) 400000 Classification Resource Source trail 10-K: 10-K Gold Resources at December 31, 2025 Published 2026-02-19 Verification Approved; not independently verified · Model extracted QA WARN: tonnes AND contained match an approved estimate of this company filed under a DIFFERENT identity (project 'Noche Buena', area None) — likely a cross-project re-presentation / umbrella-alias copy of that estimate; keep one operative copy under the established filing. QA BLOCK: recomputed contained 236725.9470 oz vs reported 200000 oz (18.36% disagreement) Rounding-interval overlap exists at the printed granularity, but a 18.36% gap exceeds the 10% interval-waiver ceiling (t23 STM AuEq-miscopy precedent) — verify the printed contained figure before approval. \| QA reject: re-presentation of an approved estimate: Gold Resources 12/31/2025 'La Bikina, Mexico (6)' prints indicated 19,900 kt @ 0.37 = 200 koz (all three verified), but La Bikina is the renamed Noche Buena (doc footnote '(1) Formerly Noche Buena') and the identical estimate is already approved in the DB under project 'Noche Buena' - operator must \| [t54 2026-07-28: RELEASED from t49 hold — operator resolved the La Bikina = Noche Buena alias. indicated Au 19,900 kt @ 0.37 g/t = 200 koz (Gold Resources, doc ln 2449-50); Dec 31 2025 restatement, printed figures canonical.] Copies a pre-filled issue record so you can send it through your normal channel.

Inferred

3.20 Mt

0.20 g/t

0.02 Moz

11.00 g/t

1.00 Moz

31 Dec 2025

Silver Resources at December 31, 2025Unverified

notes (6)

Source: 10-K: 10-K · published 19 Feb 2026

Ref: Silver Resources at December 31, 2025

SK-1300 — Reporting code of record: SK-1300
excl — Stated Resources are EXCLUSIVE of Reserves — they sit on top of the reserve, so decks quoting inclusive resources will show a larger figure (inclusive = this row + the converted reserve).
attrib — Figures are net to the issuer's ownership interest as reported (attributable basis) — NOT 100% of the project.

QA notes:

QA WARN: tonnes AND contained match an approved estimate of this company filed under a DIFFERENT identity (project 'Noche Buena', area None) — likely a cross-project re-presentation / umbrella-alias copy of that estimate; keep one operative copy under the established filing. QA WARN: recomputed contained 565853.1396 oz vs reported 500000 oz (13.17% disagreement) Rounding-interval overlap exists at the printed granularity, but a 13.17% gap exceeds the 10% interval-waiver ceiling (t23 STM AuEq-miscopy precedent) — verify the printed contained figure before approval.
QA reject: re-presentation of an approved estimate: Silver Resources 12/31/2025 'La Bikina, Mexico (4)': inferred 1,600 kt @ 11.0 = 500 koz matches print (printed contained canonical over 13% recompute gap); same La Bikina = ex-Noche Buena alias situation - hold for operator.
[t54 2026-07-28: RELEASED from t49 hold — operator resolved the La Bikina = Noche Buena alias. inferred Ag 1,600 kt @ 11.0 g/t = 500 koz (Silver Resources, doc ln 2767-68); Dec 31 2025 restatement, printed figures canonical. reported_basis corrected 100% -> attributable: the table prints Newmont's 50% share (t49/t52 silver-basis class).]