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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).

Turquoise Ridge

Nevada, United States · Producing · 61.5% 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	14.63 Mt	10.99 g/t	5.20 Moz	31 Dec 2025
Indicated	102.44 Mt	4.30 g/t	14.15 Moz	31 Dec 2025
Inferred	30.89 Mt	3.20 g/t	3.25 Moz	31 Dec 2025
Total Resources	73.17 Mt	3.46 g/t	8.13 Moz	31 Dec 2025
Proved	10.73 Mt	11.67 g/t	4.07 Moz	31 Dec 2025
Probable	63.41 Mt	5.03 g/t	10.41 Moz	31 Dec 2025
Total Reserves	74.80 Mt	6.07 g/t	14.47 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

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Price assumption

US$2000.00/oz · US$1500.00/oz

JORC code year

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Peer benchmark — producing Au projects (282 with resources)Resource size P88Resource grade P87View 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: 40-F — d833573dex991.htm (AIF exhibit) · 31 Dec 2025
Reporting code: SK-1300
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	Measured	14.63 Mt	10.99 g/t	5.20 Moz	31 Dec 2025	Gold Mineral Resources table — Turquoise Ridge (61.50%) totalUnverified Evidence record Turquoise Ridge Measured · Au · as at 2025-12-31 Reported figure Area Whole project Basis attributable Ore tonnes (t) 14634146.341463415 Grade 10.9900 Contained (oz) 5203252.032520325 Classification Resource Source trail 40-F: 40-F — d833573dex991.htm (AIF exhibit) Gold Mineral Resources table — Turquoise Ridge (61.50%) total Published 2026-02-27 Verification Approved; not independently verified · Model extracted QA WARN: identical figures appear under ANOTHER area label of this project in the same document — likely one printed estimate stored twice (a summary/grouping line duplicating its leaf). Keep one copy; reject the relabelled twin. Copies a pre-filled issue record so you can send it through your normal channel.

Total

Inferred

30.89 Mt

3.20 g/t

3.25 Moz

31 Dec 2025

Gold Mineral Resources table — Turquoise Ridge (61.50%) totalUnverified

notes (5)

Source: 40-F: 40-F — d833573dex991.htm (AIF exhibit) · published 27 Feb 2026

Ref: Gold Mineral Resources table — Turquoise Ridge (61.50%) total

SK-1300 — Reporting code of record: SK-1300
@ US$ 2,000/oz — Metal price assumption used to derive this estimate.
inc — Stated Resources are inclusive of Reserves. Set Resources: Excl. Reserves to net them out.
attrib — Figures are net to the issuer's ownership interest as reported (attributable basis) — NOT 100% of the project.

QA notes:

QA WARN: tonnes/contained equal the SUM of 2 sibling row(s) of the same classification/category/commodity (surface, underground) — likely a printed multi-deposit rollup/subtotal. Policy keeps leaf rows and printed whole-project Totals only; reject mid-level rollups (double-count). QA INFO: recompute differs 2.26% from the printed contained figure, but the printed tonnes/grade/contained are only good to ±4.19% (rounding granularity) — 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	74.80 Mt	6.07 g/t	14.47 Moz	31 Dec 2025	Gold Mineral Reserves table — Turquoise Ridge (61.50%) totalUnverified Evidence record Turquoise Ridge Total Reserve · Au · as at 2025-12-31 Reported figure Area Whole project Basis attributable Ore tonnes (t) 74796747.96747968 Grade 6.0700 Contained (oz) 14471544.715447154 Classification Reserve Source trail 40-F: 40-F — d833573dex991.htm (AIF exhibit) Gold Mineral Reserves table — Turquoise Ridge (61.50%) total Published 2026-02-27 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: 40-F — d833573dex991.htm (AIF exhibit) · published 27 Feb 2026 Ref: Gold Mineral Reserves table — Turquoise Ridge (61.50%) total SK-1300 — Reporting code of record: SK-1300 @ US$ 1,500/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 — the flag describes resource statements; reserve rows carry none.
surface	Probable	40.65 Mt	2.20 g/t	2.76 Moz	31 Dec 2025	Gold Mineral Reserves tableUnverified Evidence record Turquoise Ridge Probable · Au · as at 2025-12-31 Reported figure Area surface Basis attributable Ore tonnes (t) 40650406.50406504 Grade 2.2000 Contained (oz) 2764227.6422764226 Classification Reserve Source trail 40-F: 40-F — d833573dex991.htm (AIF exhibit) Gold Mineral Reserves table Published 2026-02-27 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: recomputed contained 1768291.0613 oz vs reported 1700000.0 oz (4.02% disagreement) Copies a pre-filled issue record so you can send it through your normal channel.	notes (4) Source: 40-F: 40-F — d833573dex991.htm (AIF exhibit) · published 27 Feb 2026 Ref: Gold Mineral Reserves table
underground	Proved	10.73 Mt	11.67 g/t	4.07 Moz	31 Dec 2025	Gold Mineral Reserves tableUnverified Evidence record Turquoise Ridge Proved · Au · as at 2025-12-31 Reported figure Area underground Basis attributable Ore tonnes (t) 10731707.31707317 Grade 11.6700 Contained (oz) 4065040.650406504 Classification Reserve Source trail 40-F: 40-F — d833573dex991.htm (AIF exhibit) Gold Mineral Reserves table Published 2026-02-27 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: 40-F — d833573dex991.htm (AIF exhibit) · published 27 Feb 2026 Ref: Gold Mineral Reserves table
underground	Probable	22.76 Mt	10.09 g/t	7.64 Moz	31 Dec 2025	Gold Mineral Reserves tableUnverified Evidence record Turquoise Ridge Probable · Au · as at 2025-12-31 Reported figure Area underground Basis attributable Ore tonnes (t) 22764227.64227642 Grade 10.0900 Contained (oz) 7642276.422764228 Classification Reserve Source trail 40-F: 40-F — d833573dex991.htm (AIF exhibit) Gold Mineral Reserves table Published 2026-02-27 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 3.37% from the printed contained figure, but the printed tonnes/grade/contained are only good to ±3.62% (rounding granularity) — treated as reconciled. Copies a pre-filled issue record so you can send it through your normal channel.	notes (4) Source: 40-F: 40-F — d833573dex991.htm (AIF exhibit) · published 27 Feb 2026