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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).

Obuasi

Ghana · 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	6.12 Mt	7.21 g/t	1.42 Moz	31 Dec 2025
Indicated	43.72 Mt	5.33 g/t	7.49 Moz	31 Dec 2025
Inferred	43.93 Mt	7.81 g/t	11.03 Moz	31 Dec 2025
Total Resources	93.77 Mt	6.61 g/t	19.94 Moz	31 Dec 2025
Proved	4.23 Mt	10.58 g/t	1.44 Moz	31 Dec 2025
Probable	17.06 Mt	10.25 g/t	5.62 Moz	31 Dec 2025
Total Reserves	21.30 Mt	10.31 g/t	7.06 Moz	31 Dec 2025

Cut-off grade

0.9400 g/t Au · 4.9100 g/t Au

Price assumption

US$2000.00/oz · US$1700.00/oz

JORC code year

—

Peer benchmark — producing Au projects (282 with resources)Resource size P95Resource grade P92View 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: 20-F: 20-F · 31 Dec 2025
Reporting code: SK-1300
Convention: exclusive
Currency assumption: US$

Current R&R

Resources

Category	Tonnes (Mt)	Au		As at	Source	Provenance
Category	Tonnes (Mt)	Grade (g/t Au)	Contained (Moz Au)	As at	Source	Provenance
Measured	6.12 Mt	7.21 g/t	1.42 Moz	31 Dec 2025	Obuasi Mineral Resource table at 31 December 2025Unverified Evidence record Obuasi Measured · Au · as at 2025-12-31 Reported figure Area Whole project Basis attributable Ore tonnes (t) 6120000.0000 Grade 7.2100 Contained (oz) 1420000.0000 Classification Resource Source trail 20-F: 20-F Obuasi Mineral Resource table at 31 December 2025 Published 2026-03-26 Verification Approved; not independently verified · Model extracted AGENT-QA 2026-07-11 (t6 recovery first gate, operator-delegated): post-#133 re-extraction verified - structure, single as-at vintage, reported basis and spot-checks against the printed tables. Approved. Copies a pre-filled issue record so you can send it through your normal channel.

Reserves

Category	Tonnes (Mt)	Au		As at	Source	Provenance
Category	Tonnes (Mt)	Grade (g/t Au)	Contained (Moz Au)	As at	Source	Provenance
Proved	4.23 Mt	10.58 g/t	1.44 Moz	31 Dec 2025	Obuasi Mineral Reserve table at 31 December 2025Unverified Evidence record Obuasi Proved · Au · as at 2025-12-31 Reported figure Area Whole project Basis attributable Ore tonnes (t) 4230000.0000 Grade 10.5800 Contained (oz) 1440000.0000 Classification Reserve Source trail 20-F: 20-F Obuasi Mineral Reserve table at 31 December 2025 Published 2026-03-26 Verification Approved; not independently verified · Model extracted AGENT-QA 2026-07-11 (t6 recovery first gate, operator-delegated): post-#133 re-extraction verified - structure, single as-at vintage, reported basis and spot-checks against the printed tables. Approved. Copies a pre-filled issue record so you can send it through your normal channel.	notes (5) Source: 20-F: 20-F · published 26 Mar 2026 Ref: Obuasi Mineral Reserve table at 31 December 2025 SK-1300 — Reporting code of record: SK-1300 Cutoff 4.91 g/t Au — Cut-off grade assumption from the source statement. @ US$ 1,700/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: AGENT-QA 2026-07-11 (t6 recovery first gate, operator-delegated): post-#133 re-extraction verified - structure, single as-at vintage, reported basis and spot-checks against the printed tables. Approved.
Probable	17.06 Mt	10.25 g/t	5.62 Moz	31 Dec 2025	Obuasi Mineral Reserve table at 31 December 2025Unverified Evidence record Obuasi Probable · Au · as at 2025-12-31 Reported figure Area Whole project Basis attributable Ore tonnes (t) 17060000.0000 Grade 10.2500 Contained (oz) 5620000.0000 Classification Reserve Source trail 20-F: 20-F Obuasi Mineral Reserve table at 31 December 2025 Published 2026-03-26 Verification Approved; not independently verified · Model extracted AGENT-QA 2026-07-11 (t6 recovery first gate, operator-delegated): post-#133 re-extraction verified - structure, single as-at vintage, reported basis and spot-checks against the printed tables. Approved. Copies a pre-filled issue record so you can send it through your normal channel.	notes (5) Source: 20-F: 20-F · published 26 Mar 2026 Ref: Obuasi Mineral Reserve table at 31 December 2025 SK-1300
Total Reserves	21.30 Mt	10.31 g/t	7.06 Moz	31 Dec 2025	Obuasi Mineral Reserve table at 31 December 2025Unverified Evidence record Obuasi Total Reserve · Au · as at 2025-12-31 Reported figure Area Whole project Basis attributable Ore tonnes (t) 21300000.0000 Grade 10.3100 Contained (oz) 7060000.0000 Classification Reserve Source trail 20-F: 20-F Obuasi Mineral Reserve table at 31 December 2025 Published 2026-03-26 Verification Approved; not independently verified · Model extracted AGENT-QA 2026-07-11 (t6 recovery first gate, operator-delegated): post-#133 re-extraction verified - structure, single as-at vintage, reported basis and spot-checks against the printed tables. Approved. Copies a pre-filled issue record so you can send it through your normal channel.	notes (5) Source: 20-F: 20-F · published 26 Mar 2026 Ref: Obuasi Mineral Reserve table at 31 December 2025