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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).

North Mara

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.

Category	Tonnes (Mt)	Grade (g/t Au)	Contained (Moz Au)	As at
Measured	17.86 Mt	2.47 g/t	1.43 Moz	31 Dec 2025
Indicated	88.10 Mt	1.92 g/t	5.48 Moz	31 Dec 2025
Inferred	20.24 Mt	1.90 g/t	1.19 Moz	31 Dec 2025
Total Resources	75.00 Mt	1.78 g/t	4.29 Moz	31 Dec 2025
Proved	8.57 Mt	3.21 g/t	0.87 Moz	31 Dec 2025
Probable	43.10 Mt	2.14 g/t	2.96 Moz	31 Dec 2025
Total Reserves	51.19 Mt	2.32 g/t	3.81 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 P74Resource grade P60View 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: 14 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	17.86 Mt	2.47 g/t	1.43 Moz	31 Dec 2025	Gold Mineral Resources table — North Mara (84.00%) totalUnverified Evidence record North Mara Measured · Au · as at 2025-12-31 Reported figure Area Whole project Basis attributable Ore tonnes (t) 17857142.85714286 Grade 2.4700 Contained (oz) 1428571.4285714286 Classification Resource Source trail 40-F: 40-F — d833573dex991.htm (AIF exhibit) Gold Mineral Resources table — North Mara (84.00%) total Published 2026-02-27 Verification Approved; not independently verified · Model extracted 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). Copies a pre-filled issue record so you can send it through your normal channel.

Total

Inferred

20.24 Mt

1.90 g/t

1.19 Moz

31 Dec 2025

Gold Mineral Resources table — North Mara (84.00%) totalUnverified

notes (5)

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

Ref: Gold Mineral Resources table — North Mara (84.00%) 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 3.85% from the printed contained figure, but the printed tonnes/grade/contained are only good to ±5.57% (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	51.19 Mt	2.32 g/t	3.81 Moz	31 Dec 2025	Gold Mineral Reserves table — North Mara (84.00%) totalUnverified Evidence record North Mara Total Reserve · Au · as at 2025-12-31 Reported figure Area Whole project Basis attributable Ore tonnes (t) 51190476.19047619 Grade 2.3200 Contained (oz) 3809523.8095238097 Classification Reserve Source trail 40-F: 40-F — d833573dex991.htm (AIF exhibit) Gold Mineral Reserves table — North Mara (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 — North Mara (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	6.43 Mt	3.22 g/t	0.65 Moz	31 Dec 2025	Gold Mineral Reserves tableUnverified Evidence record North Mara Proved · Au · as at 2025-12-31 Reported figure Area surface Basis attributable Ore tonnes (t) 6428571.428571428 Grade 3.2200 Contained (oz) 654761.9047619047 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 559037.1813 oz vs reported 550000.00 oz (1.64% 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
surface	Probable	35.71 Mt	1.66 g/t	1.90 Moz	31 Dec 2025	Gold Mineral Reserves tableUnverified Evidence record North Mara Probable · Au · as at 2025-12-31 Reported figure Area surface Basis attributable Ore tonnes (t) 35714285.71428572 Grade 1.6600 Contained (oz) 1904761.9047619049 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	Proved	2.14 Mt	3.18 g/t	0.21 Moz	31 Dec 2025	Gold Mineral Reserves tableUnverified Evidence record North Mara Proved · Au · as at 2025-12-31 Reported figure Area underground Basis attributable Ore tonnes (t) 2142857.1428571427 Grade 3.1800 Contained (oz) 214285.7142857143 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 184030.8734 oz vs reported 180000.00 oz (2.24% 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	Probable	7.38 Mt	4.47 g/t	1.06 Moz	31 Dec 2025	Gold Mineral Reserves tableUnverified Evidence record North Mara Probable · Au · as at 2025-12-31 Reported figure Area underground Basis attributable Ore tonnes (t) 7380952.380952381 Grade 4.4700 Contained (oz) 1059523.8095238095 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