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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 Coipa

Chile · 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	6.44 Mt	1.70 g/t	0.36 Moz	31 Dec 2025
Indicated	39.56 Mt	1.40 g/t	1.77 Moz	31 Dec 2025
Inferred	4.80 Mt	1.20 g/t	0.19 Moz	31 Dec 2025
Total Resources	50.80 Mt	1.42 g/t	2.32 Moz	31 Dec 2025
Proved	0.59 Mt	2.50 g/t	0.05 Moz	31 Dec 2025
Probable	6.75 Mt	1.80 g/t	0.39 Moz	31 Dec 2025
Total Reserves	7.34 Mt	1.80 g/t	0.44 Moz	31 Dec 2025

Ag

Category	Tonnes (Mt)	Grade (g/t Ag)	Contained (Moz Ag)	As at
Measured	6.44 Mt	28.50 g/t	5.91 Moz	31 Dec 2025
Indicated	39.56 Mt	36.30 g/t	46.23 Moz	31 Dec 2025
Inferred	4.80 Mt	41.20 g/t	6.36 Moz	31 Dec 2025
Total Resources	50.80 Mt	35.77 g/t	58.50 Moz	31 Dec 2025
Proved	0.59 Mt	37.60 g/t	0.71 Moz	31 Dec 2025
Probable

Cut-off grade

0.8500 g/t Ag · 0.8500 g/t Au

Price assumption

US$29.41/oz · US$2500.00/oz · US$23.53/oz · US$2000.00/oz

JORC code year

—

Peer benchmark — producing Au projects (282 with resources)Resource size P56Resource grade P47View 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 — kgc-20251231xex99d1.htm (AIF exhibit) · 31 Dec 2025
Reporting code: SK-1300
Convention: exclusive
Currency assumption: US$
Disagreement flags: 4 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
Measured	6.44 Mt	1.70 g/t	0.36 Moz	28.50 g/t	5.91 Moz	31 Dec 2025	MEASURED AND INDICATED MINERAL RESOURCES — SILVERUnverified Evidence record La Coipa Measured · Ag · as at 2025-12-31 Reported figure Area Whole project Basis attributable Ore tonnes (t) 6440000.0000 Grade 28.5000 Contained (oz) 5909000.0000 Classification Resource Source trail 40-F: FORM 40-F — kgc-20251231xex99d1.htm (AIF exhibit) MEASURED AND INDICATED MINERAL RESOURCES — SILVER Published 2026-03-26 Verification Approved; not independently verified · Model extracted Copies a pre-filled issue record so you can send it through your normal channel.

Reserves

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
Proved	0.59 Mt	2.50 g/t	0.05 Moz	37.60 g/t	0.71 Moz	31 Dec 2025	PROVEN AND PROBABLE MINERAL RESERVES — SILVERUnverified Evidence record La Coipa Proved · Ag · as at 2025-12-31 Reported figure Area Whole project Basis attributable Ore tonnes (t) 591000.0000 Grade 37.6000 Contained (oz) 714000.0000 Classification Reserve Source trail 40-F: FORM 40-F — kgc-20251231xex99d1.htm (AIF exhibit) PROVEN AND PROBABLE MINERAL RESERVES — SILVER Published 2026-03-26 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 (5) Source: 40-F: FORM 40-F — kgc-20251231xex99d1.htm (AIF exhibit) · published 26 Mar 2026 Ref: PROVEN AND PROBABLE MINERAL RESERVES — SILVER SK-1300 — Reporting code of record: SK-1300 Cutoff 0.85 g/t Ag — Cut-off grade assumption from the source statement. @ US$ 23.53/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.
Probable	6.75 Mt	1.80 g/t	0.39 Moz	46.70 g/t	10.12 Moz	31 Dec 2025	PROVEN AND PROBABLE MINERAL RESERVES — SILVERUnverified Evidence record La Coipa Probable · Ag · as at 2025-12-31 Reported figure Area Whole project Basis attributable Ore tonnes (t) 6750000.0000 Grade 46.7000 Contained (oz) 10124000.0000 Classification Reserve Source trail 40-F: FORM 40-F — kgc-20251231xex99d1.htm (AIF exhibit) PROVEN AND PROBABLE MINERAL RESERVES — SILVER Published 2026-03-26 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 (5) Source: 40-F: FORM 40-F — kgc-20251231xex99d1.htm (AIF exhibit) · published 26 Mar 2026
Total Reserves	7.34 Mt	1.80 g/t	0.44 Moz	45.90 g/t	10.84 Moz	31 Dec 2025	PROVEN AND PROBABLE MINERAL RESERVES — GOLDUnverified Evidence record La Coipa Total Reserve · Au · as at 2025-12-31 Reported figure Area Whole project Basis attributable Ore tonnes (t) 7342000.0000 Grade 1.8000 Contained (oz) 436000.0000 Classification Reserve Source trail 40-F: FORM 40-F — kgc-20251231xex99d1.htm (AIF exhibit) PROVEN AND PROBABLE MINERAL RESERVES — GOLD Published 2026-03-26 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 2.55% from the printed contained figure, but the printed tonnes/grade/contained are only good to ±2.90% (rounding granularity) — treated as reconciled. Copies a pre-filled issue record so you can send it through your normal channel.	notes (5) Source: 40-F: FORM 40-F — kgc-20251231xex99d1.htm (AIF exhibit)