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Reporting assumptions

These choices persist and are added to shared URLs.

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).

Paulo Afonso

Brazil · Exploring · 90.0% 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	401.22 Mt	0.06 g/t	0.77 Moz	31 Dec 2025
Indicated	718.22 Mt	0.09 g/t	2.08 Moz	31 Dec 2025
Inferred	536.22 Mt	0.10 g/t	1.72 Moz	31 Dec 2025
Total Resources	1,655.67 Mt	0.09 g/t	4.58 Moz	31 Dec 2025
Proved	—	—	—	—
Probable	—	—	—	—
Total Reserves	—	—	—	—

Cu

Category	Tonnes (Mt)	Grade (% Cu)	Contained (Mt Cu)	As at
Measured	401.22 Mt	0.57%	2.29 Mt Cu	31 Dec 2025
Indicated	718.22 Mt	0.54%	3.88 Mt Cu	31 Dec 2025
Inferred	536.22 Mt	0.50%	2.68 Mt Cu	31 Dec 2025
Total Resources	1,655.67 Mt	0.53%	8.85 Mt Cu	31 Dec 2025
Proved	—	—	—	—
Probable

Cut-off grade

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Price assumption

US$4365.00/t · US$1000.00/t

JORC code year

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Peer benchmark — exploring Cu projects (113 with resources)Resource size P94Resource grade P65View 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		Cu		As at	Source	Provenance
Category	Tonnes (Mt)	Grade (g/t Au)	Contained (Moz Au)	Grade (% Cu)	Contained (Mt Cu)	As at	Source	Provenance
Measured	401.22 Mt	0.06 g/t	0.77 Moz	0.57%	2.29 Mt Cu	31 Dec 2025	Copper Mineral Resources as of December 31 — BrazilUnverified Evidence record Paulo Afonso Measured · Cu · as at 2025-12-31 Reported figure Area Whole project Basis attributable Ore tonnes (t) 401222222.22222227 Grade 0.5700 Contained (t Cu) 2286966.666666667 Classification Resource Source trail 20-F: 20-F Copper Mineral Resources as of December 31 — Brazil Published 2026-03-27 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.