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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).

Bulyanhulu

Tanzania · Producing · 84.0% 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	2.86 Mt	8.16 g/t	0.75 Moz	31 Dec 2025
Indicated	32.14 Mt	7.56 g/t	7.98 Moz	31 Dec 2025
Inferred	11.19 Mt	7.30 g/t	2.62 Moz	31 Dec 2025
Total Resources	25.95 Mt	8.18 g/t	6.82 Moz	31 Dec 2025
Proved	0.85 Mt	5.94 g/t	0.17 Moz	31 Dec 2025
Probable	19.05 Mt	7.03 g/t	4.40 Moz	31 Dec 2025
Total Reserves	20.24 Mt	6.98 g/t	4.52 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.

Ag

Category	Tonnes (Mt)	Grade (g/t Ag)	Contained (Moz Ag)	As at
Measured	2.86 Mt	6.94 g/t	0.64 Moz	31 Dec 2025
Indicated	32.14 Mt	5.70 g/t	5.95 Moz	31 Dec 2025
Inferred	11.19 Mt	5.80 g/t	2.14 Moz	31 Dec 2025
Total Resources	25.95 Mt	6.33 g/t	5.29 Moz	31 Dec 2025
Proved

Cu

Category	Tonnes (Mt)	Grade (% Cu)	Contained (Mt Cu)	As at
Measured	2.86 Mt	0.38%	0.01 Mt Cu	31 Dec 2025
Indicated	32.14 Mt	0.38%	0.13 Mt Cu	31 Dec 2025
Inferred	11.19 Mt	0.30%	0.04 Mt Cu	31 Dec 2025
Total Resources	25.95 Mt	0.41%	0.11 Mt Cu	31 Dec 2025
Proved

Cut-off grade

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Price assumption

US$2000.00/oz · US$25.00/oz · US$4.50/oz · US$21.00/oz · US$1500.00/oz · US$3.25/oz

JORC code year

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Peer benchmark — producing Au projects (282 with resources)Resource size P86Resource grade P94View 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: 33 rows

Current R&R

Resources

Area	Category	Tonnes (Mt)	Au		Ag		Cu		As at	Source	Provenance
Area	Category	Tonnes (Mt)	Grade (g/t Au)	Contained (Moz Au)	Grade (g/t Ag)	Contained (Moz Ag)	Grade (% Cu)	Contained (Mt Cu)	As at	Source	Provenance
Total	Measured	2.86 Mt	8.16 g/t	0.75 Moz	6.94 g/t	0.64 Moz	0.38%

underground

Measured

2.86 Mt

8.16 g/t

0.75 Moz

6.94 g/t

0.64 Moz

0.38%

0.01 Mt Cu

31 Dec 2025

Gold Mineral Resources tableUnverified

notes (5)

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

Ref: Gold Mineral Resources table

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: 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. QA WARN: tonnes/contained equal the SUM of 2 sibling row(s) of the same classification/category/commodity (surface, Bulyanhulu) — likely a printed multi-deposit rollup/subtotal. Policy keeps leaf rows and printed whole-project Totals only; reject mid-level rollups (double-count).

Reserves

Area	Category	Tonnes (Mt)	Au		Ag		Cu		As at	Source	Provenance
Area	Category	Tonnes (Mt)	Grade (g/t Au)	Contained (Moz Au)	Grade (g/t Ag)	Contained (Moz Ag)	Grade (% Cu)	Contained (Mt Cu)	As at	Source	Provenance
Total	Total Reserves	20.24 Mt	6.98 g/t	4.52 Moz	5.32 g/t	3.45 Moz	0.36%	0.07 Mt Cu	31 Dec 2025	Gold Mineral Reserves table — Bulyanhulu (84.00%) totalUnverified Evidence record Bulyanhulu Total Reserve · Au · as at 2025-12-31 Reported figure Area Whole project Basis attributable Ore tonnes (t) 20238095.23809524 Grade 6.9800 Contained (oz) 4523809.523809523 Classification Reserve Source trail 40-F: 40-F — d833573dex991.htm (AIF exhibit) Gold Mineral Reserves table — Bulyanhulu (84.00%) 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 — Bulyanhulu (84.00%) 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	Proved	4.52 kt	4.20 g/t	0.62 koz	5.10 g/t	0.75 koz	0.33%	0.02 kt Cu	31 Dec 2025	Silver Mineral Reserves tableUnverified Evidence record Bulyanhulu Proved · Ag · as at 2025-12-31 Reported figure Area surface Basis attributable Ore tonnes (t) 4523.809523809524 Grade 5.1000 Contained (oz) 750 Classification Reserve Source trail 40-F: 40-F — d833573dex991.htm (AIF exhibit) Silver 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 623.0815 oz vs reported 630.00000 oz (1.10% disagreement) Copies a pre-filled issue record so you can send it through your normal channel.	notes (4) Source:
underground	Proved	0.85 Mt	5.95 g/t	0.17 Moz	5.46 g/t	0.14 Moz	0.32%	2.74 kt Cu	31 Dec 2025	Silver Mineral Reserves tableUnverified Evidence record Bulyanhulu Proved · Ag · as at 2025-12-31 Reported figure Area underground Basis attributable Ore tonnes (t) 845238.0952380953 Grade 5.4600 Contained (oz) 142857.14285714287 Classification Reserve Source trail 40-F: 40-F — d833573dex991.htm (AIF exhibit) Silver 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 124635.5841 oz vs reported 120000.00 oz (3.86% disagreement) Copies a pre-filled issue record so you can send it through your normal channel.	notes (4)
underground	Probable	19.05 Mt	7.03 g/t	4.40 Moz	5.32 g/t	3.33 Moz	0.36%	0.07 Mt Cu	31 Dec 2025	Gold Mineral Reserves tableUnverified Evidence record Bulyanhulu Probable · Au · as at 2025-12-31 Reported figure Area underground Basis attributable Ore tonnes (t) 19047619.04761905 Grade 7.0300 Contained (oz) 4404761.904761905 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 2.26% from the printed contained figure, but the printed tonnes/grade/contained are only good to ±3.20% (rounding granularity) — treated as reconciled. Copies a pre-filled issue record so you can send it through your normal channel.	notes (4)