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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).

Marimaca Oxide Deposit

Chile · DevelopingUnverified

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 (% Cu)	Contained (Mt Cu)	As at
Measured	103.26 Mt	0.45%	0.46 Mt Cu	25 Aug 2025
Indicated	108.51 Mt	0.35%	0.38 Mt Cu	25 Aug 2025
Inferred	20.05 Mt	0.29%	0.06 Mt Cu	25 Aug 2025
Total Resources	53.22 Mt	0.29%	0.16 Mt Cu	25 Aug 2025
Proved	—	—	—	—
Probable	—	—	—	—
Total Reserves	178.60 Mt	0.42%	0.75 Mt Cu	25 Aug 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

0.1000 % Cu

Price assumption

US$4.30/t

JORC code year

2012

Peer benchmark — developing Cu projects (124 with resources)Resource size P41Resource 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: Company Presentation - DFS · 25 Aug 2025
Reporting code: JORC 2012
Convention: inclusive
Currency assumption: US$
Disagreement flags: 1 row

Current R&R

Resources

Category	Tonnes (Mt)	Cu		As at	Source	Provenance
Category	Tonnes (Mt)	Grade (% Cu)	Contained (Mt Cu)	As at	Source	Provenance
Measured	103.26 Mt	0.45%	0.46 Mt Cu	25 Aug 2025	18Unverified Evidence record Marimaca Oxide Deposit Measured · Cu · as at 2025-08-25 Reported figure Area Whole project Basis 100% Ore tonnes (t) 103258000.0000 Grade 0.4500 Contained (t Cu) 463000.0000 Classification Resource Source trail Company Presentation - DFS 18 Published 2025-08-27 Verification Approved; not independently verified · Model extracted QA approved: verified against the source print by the tranche-19 agent pass Copies a pre-filled issue record so you can send it through your normal channel.

Reserves

Category	Tonnes (Mt)	Cu		As at	Source	Provenance
Category	Tonnes (Mt)	Grade (% Cu)	Contained (Mt Cu)	As at	Source	Provenance
Total Reserves	178.60 Mt	0.42%	0.75 Mt Cu	25 Aug 2025	Highlights / Maiden Proven and Probable Mineral ReservesUnverified Evidence record Marimaca Oxide Deposit Total Reserve · Cu · as at 2025-08-25 Reported figure Area Whole project Basis 100% Ore tonnes (t) 178600000.0000 Grade 0.4200 Contained (t Cu) 750000.0000 Classification Reserve Source trail MOD Feasibility Study Confirms Robust Capital Intensity and 31%+ IRR; Maiden Ore Reserve Highlights / Maiden Proven and Probable Mineral Reserves Published 2025-08-25 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: cross-category subtotal — this whole-project total_reserve row equals the proved category value while probable rows exist (an M&I/P&P-style total excluding probable — t24 LUN / t25 GMIN-IMG class). Reject the subtotal; the full-set total (or leaves) carries the estimate. Copies a pre-filled issue record so you can send it through your normal channel.	notes (3) Source: MOD Feasibility Study Confirms Robust Capital Intensity and 31%+ IRR; Maiden Ore Reserve · published 25 Aug 2025 Ref: Highlights / Maiden Proven and Probable Mineral Reserves JORC 2012 — Reporting code of record: JORC 2012 @ US$ 4.3/t — Metal price assumption used to derive this estimate. QA notes: QA INFO: inclusive-of-reserves flag cleared — the flag describes resource statements; reserve rows carry none. QA WARN: cross-category subtotal — this whole-project total_reserve row equals the proved category value while probable rows exist (an M&I/P&P-style total excluding probable — t24 LUN / t25 GMIN-IMG class). Reject the subtotal; the full-set total (or leaves) carries the estimate.