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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).

Toquepala

Peru · ProducingUnverified

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.

Cu

Category	Tonnes (Mt)	Grade (% Cu)	Contained (Mt Cu)	As at
Measured	110.60 Mt	0.53%	0.58 Mt Cu	31 Dec 2025
Indicated	223.00 Mt	0.34%	0.76 Mt Cu	31 Dec 2025
Inferred	210.70 Mt	0.26%	0.54 Mt Cu	31 Dec 2025
Total Resources	544.30 Mt	0.35%	1.87 Mt Cu	31 Dec 2025
Proved	3,315.40 Mt	0.31%	10.04 Mt Cu	31 Dec 2025
Probable	1,057.60 Mt	0.34%	3.58 Mt Cu	31 Dec 2025
Total Reserves	4,373.00 Mt	0.31%	13.62 Mt Cu	31 Dec 2025

Mo

Category	Tonnes (Mt)	Grade (% Mo)	Contained (Mt Mo)	As at
Measured	99.30 Mt	0.04%	0.04 Mt Mo	31 Dec 2025
Indicated	178.80 Mt	0.02%	0.04 Mt Mo	31 Dec 2025
Inferred	159.20 Mt	0.01%	0.01 Mt Mo	31 Dec 2025
Total Resources	437.30 Mt	0.02%	0.09 Mt Mo	31 Dec 2025
Proved	1,174.90 Mt	0.04%	0.46 Mt Mo	31 Dec 2025
Probable

Cut-off grade

0.1680 % Cu · 0.1840 % Cu

Price assumption

US$3.80/t · US$11.50/t · US$3.30/t · US$10.00/t

JORC code year

—

Peer benchmark — producing Cu projects (98 with resources)Resource size P60Resource grade P35View 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: 10-K: 10-K · 31 Dec 2025
Reporting code: SK-1300
Convention: exclusive
Currency assumption: US$
Disagreement flags: 6 rows

Current R&R

Resources

Area	Category	Tonnes (Mt)	Cu		Mo		As at	Source	Provenance
Area	Category	Tonnes (Mt)	Grade (% Cu)	Contained (Mt Cu)	Grade (% Mo)	Contained (Mt Mo)	As at	Source	Provenance
Total	Measured	99.30 Mt	—	—	0.04%	0.04 Mt Mo	31 Dec 2025	Toquepala — Mineral resources table (Molybdenum)Unverified

Reserves

Area	Category	Tonnes (Mt)	Cu		Mo		As at	Source	Provenance
Area	Category	Tonnes (Mt)	Grade (% Cu)	Contained (Mt Cu)	Grade (% Mo)	Contained (Mt Mo)	As at	Source	Provenance
Total	Proved	1,174.90 Mt	—	—	0.04%	0.46 Mt Mo	31 Dec 2025	Toquepala — Mineral reserves table (Molybdenum)Unverified Evidence record Toquepala Proved · Mo · as at 2025-12-31 Reported figure Area Whole project Basis 100% Ore tonnes (t) 1174900000.0000 Grade 0.0390 Contained (t Mo) 462709.5766 Classification Reserve Source trail 10-K: 10-K Toquepala — Mineral reserves table (Molybdenum) Published 2026-02-27 Verification Approved; not independently verified · Model extracted Copies a pre-filled issue record so you can send it through your normal channel.	notes (2) Source: 10-K: 10-K · published 27 Feb 2026 Ref: Toquepala — Mineral reserves table (Molybdenum) SK-1300 — Reporting code of record: SK-1300 @ US$ 10/t — Metal price assumption used to derive this estimate.
Total	Probable	565.40 Mt	—	—	0.02%	0.12 Mt Mo	31 Dec 2025	Toquepala — Mineral reserves table (Molybdenum)Unverified Evidence record Toquepala Probable · Mo · as at 2025-12-31 Reported figure Area Whole project Basis 100% Ore tonnes (t) 565400000.0000 Grade 0.0200 Contained (t Mo) 115892.8505 Classification Reserve Source trail 10-K: 10-K Toquepala — Mineral reserves table (Molybdenum) Published 2026-02-27 Verification Approved; not independently verified · Model extracted QA INFO: recompute differs 2.43% from the printed contained figure, but the printed tonnes/grade/contained are only good to ±2.50% (rounding granularity) — treated as reconciled. Copies a pre-filled issue record so you can send it through your normal channel.	notes (3) Source: 10-K: 10-K
Total	Total Reserves	1,740.30–4,373.00 Mt	0.31%	13.62 Mt Cu	0.03%	0.58 Mt Mo	31 Dec 2025	derived from 4 rows Proved: Toquepala — Mineral reserves table Proved: Toquepala — Mineral reserves table Probable: Toquepala — Mineral reserves table Probable: Toquepala — Mineral reserves table
Leach	Proved	2,140.50 Mt	0.16%	3.33 Mt Cu	—	—	31 Dec 2025	Toquepala — Mineral reserves tableUnverified Evidence record Toquepala Proved · Cu · as at 2025-12-31 Reported figure Area Leach Basis 100% Ore tonnes (t) 2140500000.0000 Grade 0.1600 Contained (t Cu) 3325966.0530 Classification Reserve Source trail 10-K: 10-K Toquepala — Mineral reserves table Published 2026-02-27 Verification Approved; not independently verified · Model extracted QA INFO: recompute differs 2.97% from the printed contained figure, but the printed tonnes/grade/contained are only good to ±3.13% (rounding granularity) — treated as reconciled. Copies a pre-filled issue record so you can send it through your normal channel.	notes (4) Source: 10-K: 10-K · published 27 Feb 2026
Leach	Probable	492.20 Mt	0.20%	1.00 Mt Cu	—	—	31 Dec 2025	Toquepala — Mineral reserves tableUnverified Evidence record Toquepala Probable · Cu · as at 2025-12-31 Reported figure Area Leach Basis 100% Ore tonnes (t) 492200000.0000 Grade 0.2000 Contained (t Cu) 997676.4178 Classification Reserve Source trail 10-K: 10-K Toquepala — Mineral reserves table Published 2026-02-27 Verification Approved; not independently verified · Model extracted QA INFO: recompute differs 1.33% from the printed contained figure, but the printed tonnes/grade/contained are only good to ±2.50% (rounding granularity) — treated as reconciled. Copies a pre-filled issue record so you can send it through your normal channel.	notes (4) Source: 10-K: 10-K · published 27 Feb 2026
Mill	Proved	1,174.90 Mt	0.57%	6.72 Mt Cu	—	—	31 Dec 2025	Toquepala — Mineral reserves tableUnverified Evidence record Toquepala Proved · Cu · as at 2025-12-31 Reported figure Area Mill Basis 100% Ore tonnes (t) 1174900000.0000 Grade 0.5700 Contained (t Cu) 6718156.5921 Classification Reserve Source trail 10-K: 10-K Toquepala — Mineral reserves table Published 2026-02-27 Verification Approved; not independently verified · Model extracted Copies a pre-filled issue record so you can send it through your normal channel.	notes (3) Source: 10-K: 10-K · published 27 Feb 2026 Ref: Toquepala — Mineral reserves table
Mill	Probable	565.40 Mt	0.46%	2.58 Mt Cu	—	—	31 Dec 2025	Toquepala — Mineral reserves tableUnverified Evidence record Toquepala Probable · Cu · as at 2025-12-31 Reported figure Area Mill Basis 100% Ore tonnes (t) 565400000.0000 Grade 0.4600 Contained (t Cu) 2579080.8566 Classification Reserve Source trail 10-K: 10-K Toquepala — Mineral reserves table Published 2026-02-27 Verification Approved; not independently verified · Model extracted Copies a pre-filled issue record so you can send it through your normal channel.	notes (3) Source: 10-K: 10-K · published 27 Feb 2026 Ref: Toquepala — Mineral reserves table