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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).

Cerro Negro

Argentina · 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.

Au

Category	Tonnes (Mt)	Grade (g/t Au)	Contained (Moz Au)	As at
Measured	1.30 Mt	3.73 g/t	0.20 Moz	31 Dec 2025
Indicated	1.90 Mt	5.42 g/t	0.30 Moz	31 Dec 2025
Inferred	7.50 Mt	5.10 g/t	1.20 Moz	31 Dec 2025
Total Resources	10.70 Mt	4.99 g/t	1.70 Moz	31 Dec 2025
Proved	2.20 Mt	11.20 g/t	0.80 Moz	31 Dec 2025
Probable	6.80 Mt	10.38 g/t	2.30 Moz	31 Dec 2025
Total Reserves	9.00 Mt	10.58 g/t	3.00 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.

Ag

Category	Tonnes (Mt)	Grade (g/t Ag)	Contained (Moz Ag)	As at
Measured	1.30 Mt	12.61 g/t	0.50 Moz	31 Dec 2024
Indicated	1.90 Mt	27.54 g/t	1.70 Moz	31 Dec 2024
Inferred	7.60 Mt	25.70 g/t	6.30 Moz	31 Dec 2024
Total Resources	10.80 Mt	24.45 g/t	8.50 Moz	31 Dec 2024
Proved	2.20 Mt	84.41 g/t	5.90 Moz	31 Dec 2025
Probable

Cut-off grade

—

Price assumption

A$1600.00/oz · A$2300.00/oz · A$25.00/oz · A$2000.00/oz

JORC code year

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Peer benchmark — producing Au projects (282 with resources)Resource size P49Resource grade P89View 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: A$
Disagreement flags: 17 rows

Current R&R

Resources

Area	Category	Tonnes (Mt)	Au		Ag		As at	Source	Provenance
Area	Category	Tonnes (Mt)	Grade (g/t Au)	Contained (Moz Au)	Grade (g/t Ag)	Contained (Moz Ag)	As at	Source	Provenance
Total	Measured	1.30 Mt	3.73 g/t	0.20 Moz	12.61 g/t	0.50 Moz	31 Dec 2024 *

Total

Indicated

1.90 Mt

5.42 g/t

0.30 Moz

27.54 g/t

1.70 Moz

31 Dec 2025 *

Gold Resources at December 31, 2025Unverified

notes (5)

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

Ref: Gold Resources at December 31, 2025

SK-1300 — Reporting code of record: SK-1300
@ A$ 2,300/oz — Metal price assumption used to derive this estimate.
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: identical figures to a stored row of the same company/project/area/category under a DIFFERENT as-at date — likely a re-presentation (DFS / annual statement / global MRE restating an already-stored estimate). Keep one operative copy; verify supersession before storing both. QA WARN: recomputed contained 331088.3882 oz vs reported 300000 oz (10.36% disagreement) Rounding-interval overlap exists at the printed granularity, but a 10.36% gap exceeds the 10% interval-waiver ceiling (t23 STM AuEq-miscopy precedent) — verify the printed contained figure before approval.

Open Pit

Measured

1.20 Mt

3.28 g/t

0.13 Moz

6.76 g/t

0.30 Moz

31 Dec 2025 *

Silver Resources at December 31, 2025Unverified

notes (3)

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).

QA notes:

QA WARN: identical tonnage to an existing stored row labelled 'indicated' for the same project/area/commodity, while this row is labelled 'measured' — likely a category-column shift (Measured/Indicated/Inferred header misalignment at extraction), not a reclassification (which re-estimates the tonnage). Verify which classification the source prints; if this row's category is wrong the whole table is likely shifted. NOTE: a few issuers do print two categories with genuinely identical tonnage AND contained metal (t32 AAR Eagles Nest) — check the print before rejecting. QA WARN: identical figures to a stored row of the same company/project/area/category under a DIFFERENT as-at date — likely a re-presentation (DFS / annual statement / global MRE restating an already-stored estimate). Keep one operative copy; verify supersession before storing both. QA WARN: recomputed contained 260806.8562 oz vs reported 300000 oz (13.06% disagreement) Rounding-interval overlap exists at the printed granularity, but a 13.06% gap exceeds the 10% interval-waiver ceiling (t23 STM AuEq-miscopy precedent) — verify the printed contained figure before approval.

Open Pit

Indicated

1.20 Mt

3.15 g/t

0.12 Moz

6.62 g/t

0.30 Moz

31 Dec 2025 *

Silver Resources at December 31, 2025Unverified

notes (3)

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).

QA notes:

QA WARN: identical tonnage to an existing stored row labelled 'measured' for the same project/area/commodity, while this row is labelled 'indicated' — likely a category-column shift (Measured/Indicated/Inferred header misalignment at extraction), not a reclassification (which re-estimates the tonnage). Verify which classification the source prints; if this row's category is wrong the whole table is likely shifted. NOTE: a few issuers do print two categories with genuinely identical tonnage AND contained metal (t32 AAR Eagles Nest) — check the print before rejecting. QA WARN: identical figures to a stored row of the same company/project/area/category under a DIFFERENT as-at date — likely a re-presentation (DFS / annual statement / global MRE restating an already-stored estimate). Keep one operative copy; verify supersession before storing both. QA WARN: recomputed contained 255405.5307 oz vs reported 300000 oz (14.86% disagreement) Rounding-interval overlap exists at the printed granularity, but a 14.86% gap exceeds the 10% interval-waiver ceiling (t23 STM AuEq-miscopy precedent) — verify the printed contained figure before approval.

Open Pit

Inferred

0.30 Mt

2.50 g/t

0.02 Moz

6.70 g/t

0.10 Moz

31 Dec 2022 *

Gold Resources at December 31, 2023Unverified

notes (5)

Source: 10-K: 10-K · published 29 Feb 2024

Ref: Gold Resources at December 31, 2023

SK-1300 — Reporting code of record: SK-1300
@ A$ 1,600/oz — Metal price assumption used to derive this estimate.
attrib — Figures are net to the issuer's ownership interest as reported (attributable basis) — NOT 100% of the project.

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 WARN: recompute differs 20.57% from the printed contained, but the printed figure is a one-significant-figure coarse print whose own half-step covers the gap — EITHER an honest sub-unit cell (t63 BTG '10' koz class; approve on the print) OR a miscopied column that happens to be coarse (t23 STM AuEq class; reject). The arithmetic cannot tell them apart — verify which column the figure came from. Rounding-interval overlap exists at the printed granularity, but a 20.57% gap exceeds the 10% interval-waiver ceiling (t23 STM AuEq-miscopy precedent) — verify the printed contained figure before approval.
QA fix: Gold Resources at December 31, 2022, "Cerro Negro Open Pit" (doc L2509): Inferred = 300 kt / 2.5 g/t / 20 koz - the prior-year comparative table, not the December 31, 2023 statement; the December 31, 2023 resource line for this deposit was not extracted at all (the whole first page of the 2023 gold resources table, L2351-2401, is unstored), so a 20 t68a: doc-wide basis sweep: the 10-K reports resources 'attributable to Newmont's ownership or economic interest' and the narrative ties Total M&I 104.8 Moz / Inferred 69.1 Moz to that basis; the extractor stamped resource rows '100%'.

Underground

Measured

0.10–0.20 Mt

6.11 g/t

0.03 Moz

72.50 g/t

0.20 Moz

31 Dec 2022 *

Gold Resources at December 31, 2023Unverified

notes (6)

Source: 10-K: 10-K · published 29 Feb 2024

Ref: Gold Resources at December 31, 2023

SK-1300 — Reporting code of record: SK-1300
@ A$ 1,600/oz — Metal price assumption used to derive this estimate.
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 BLOCK: recomputed contained 39288.2123 oz vs reported 30000 oz (30.96% disagreement) Rounding-interval overlap exists at the printed granularity, but a 30.96% gap exceeds the 10% interval-waiver ceiling (t23 STM AuEq-miscopy precedent) — verify the printed contained figure before approval.
QA fix: Gold Resources at December 31, 2022, "Cerro Negro Underground" (doc L2508): Measured = 200 kt / 6.11 g/t / 30 koz - the prior-year comparative table, not the December 31, 2023 statement; the December 31, 2023 resource line for this deposit was not extracted at all (the whole first page of the 2023 gold resources table, L2351-2401, is unstored), so t68a: doc-wide basis sweep: the 10-K reports resources 'attributable to Newmont's ownership or economic interest' and the narrative ties Total M&I 104.8 Moz / Inferred 69.1 Moz to that basis; the extractor stamped resource rows '100%'.

Underground

Indicated

0.70–1.50 Mt

7.33 g/t

0.36 Moz

57.19 g/t

1.30 Moz

31 Dec 2022 *

Gold Resources at December 31, 2023Unverified

notes (6)

Source: 10-K: 10-K · published 29 Feb 2024

Ref: Gold Resources at December 31, 2023

SK-1300 — Reporting code of record: SK-1300
@ A$ 1,600/oz — Metal price assumption used to derive this estimate.
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 INFO: recompute differs 1.81% from the printed contained figure, but the printed tonnes/grade/contained carry ±4.79% 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.
QA fix: Gold Resources at December 31, 2022, "Cerro Negro Underground" (doc L2508): Indicated = 1500 kt / 7.33 g/t / 360 koz - the prior-year comparative table, not the December 31, 2023 statement; the December 31, 2023 resource line for this deposit was not extracted at all (the whole first page of the 2023 gold resources table, L2351-2401, is unstored), t68a: doc-wide basis sweep: the 10-K reports resources 'attributable to Newmont's ownership or economic interest' and the narrative ties Total M&I 104.8 Moz / Inferred 69.1 Moz to that basis; the extractor stamped resource rows '100%'.

Reserves

Area	Category	Tonnes (Mt)	Au		Ag		As at	Source	Provenance
Area	Category	Tonnes (Mt)	Grade (g/t Au)	Contained (Moz Au)	Grade (g/t Ag)	Contained (Moz Ag)	As at	Source	Provenance
Total	Proved	2.20 Mt	11.20 g/t	0.80 Moz	84.41 g/t	5.90 Moz	31 Dec 2025	Silver Reserves at December 31, 2025Unverified Evidence record Cerro Negro Proved · Ag · as at 2025-12-31 Reported figure Area Whole project Basis attributable Ore tonnes (t) 2200000.0000 Grade 84.4100 Contained (oz) 5900000.0000 Classification Reserve Source trail 10-K: 10-K Silver Reserves at December 31, 2025 Published 2026-02-19 Verification Approved; not independently verified · Model extracted QA WARN: unrecognised source metal label 'Grade (g/tonne)' for Ag — verify the commodity mapping. QA INFO: recompute differs 1.19% from the printed contained figure, but the printed tonnes/grade/contained are only good to ±3.13% (rounding granularity) — treated as reconciled. Copies a pre-filled issue record so you can send it through your normal channel.	notes (4) Source: 10-K: 10-K · published 19 Feb 2026 Ref: Silver Reserves at December 31, 2025 SK-1300 — Reporting code of record: SK-1300 @ A$ 25/oz — Metal price assumption used to derive this estimate. attrib — Figures are net to the issuer's ownership interest as reported (attributable basis) — NOT 100% of the project. QA notes: QA WARN: unrecognised source metal label 'Grade (g/tonne)' for Ag — verify the commodity mapping. QA INFO: recompute differs 1.19% from the printed contained figure, but the printed tonnes/grade/contained are only good to ±3.13% (rounding granularity) — treated as reconciled.
Total	Probable	6.80 Mt	10.38 g/t	2.30 Moz	66.20 g/t	14.40 Moz	31 Dec 2025	Gold Reserves at December 31, 2025Unverified Evidence record Cerro Negro Probable · Au · as at 2025-12-31 Reported figure Area Whole project Basis attributable Ore tonnes (t) 6800000.0000 Grade 10.3800 Contained (oz) 2300000.0000 Classification Reserve Source trail 10-K: 10-K Gold Reserves at December 31, 2025 Published 2026-02-19 Verification Approved; not independently verified · Model extracted QA WARN: unrecognised source metal label 'Grade (g/tonne)' for Au — verify the commodity mapping. QA INFO: recompute differs 1.33% from the printed contained figure, but the printed tonnes/grade/contained are only good to ±2.96% (rounding granularity) — treated as reconciled. Copies a pre-filled issue record so you can send it through your normal channel.	notes (4) Source: 10-K: 10-K
Total	Total Reserves	9.00 Mt	10.58 g/t	3.00 Moz	70.62 g/t	20.30 Moz	31 Dec 2025	Gold Reserves at December 31, 2025Unverified Evidence record Cerro Negro Total Reserve · Au · as at 2025-12-31 Reported figure Area Whole project Basis attributable Ore tonnes (t) 9000000.0000 Grade 10.5800 Contained (oz) 3000000.0000 Classification Reserve Source trail 10-K: 10-K Gold Reserves at December 31, 2025 Published 2026-02-19 Verification Approved; not independently verified · Model extracted QA WARN: unrecognised source metal label 'Grade (g/tonne)' for Au — verify the commodity mapping. QA INFO: recompute differs 2.05% from the printed contained figure, but the printed tonnes/grade/contained are only good to ±11.60% (rounding granularity) — treated as reconciled. Copies a pre-filled issue record so you can send it through your normal channel.	notes (4) Source: 10-K: 10-K