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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 Ag) | Contained (Moz Ag) | As at |
|---|---|---|---|---|
| Measured | — | — | — | — |
| Indicated | 42.20 Mt | 6.10 g/t | 8.28 Moz | 31 Dec 2025 |
| M&I = Measured + Indicated (overlaps both) | 42.20 Mt | 6.10 g/t | 8.28 Moz | 31 Dec 2025 |
| Inferred | 192.20 Mt | 4.17 g/t | 25.77 Moz | 31 Dec 2025 |
| Total Resources | 234.30 Mt | 4.51 g/t | 33.97 Moz | 31 Dec 2025 |
| Proved | — | — | — | — |
| Probable | — | — | — | — |
| Total Reserves | — | — | — | — |
M&I is the issuer's printed Measured + Indicated subtotal — it overlaps the Measured and Indicated rows and is never added alongside them; the Total rows and every rollup already exclude it.
| Category | Tonnes (Mt) | Grade (% Cu) | Contained (Mt Cu) | As at |
|---|---|---|---|---|
| Measured | — | — | — | — |
| Indicated | 50.20 Mt | 1.53% | 0.77 Mt Cu | 31 Dec 2025 |
| M&I = Measured + Indicated (overlaps both) | 50.20 Mt | 1.53% | 0.77 Mt Cu | 31 Dec 2025 |
| Inferred | 205.50 Mt | 1.23% | 2.53 Mt Cu | 31 Dec 2025 |
| Total Resources | 255.60 Mt |
Percentile of this project's current total Resource among covered peers (P100 = largest / highest grade). Basis and Inferred toggles apply.
| Area | Category | Tonnes (Mt) | Ag | Cu | As at | Source | Provenance | ||
|---|---|---|---|---|---|---|---|---|---|
| Grade (g/t Ag) | Contained (Moz Ag) | Grade (% Cu) | Contained (Mt Cu) | ||||||
| Total | Indicated | 50.20 Mt | — | — | 1.53% | 0.77 Mt Cu | 31 Dec 2025 | 257Unverified | |
| 3.30 Mt Cu |
| 31 Dec 2025 |
| Proved | — | — | — | — |
| Probable | — | — | — | — |
| Total Reserves | — | — | — | — |
M&I is the issuer's printed Measured + Indicated subtotal — it overlaps the Measured and Indicated rows and is never added alongside them; the Total rows and every rollup already exclude it.
notes (3)Source: Antofagasta plc - Annual Report and Financial Statements 2025, incl. Ore Reserves and Mineral Resources as at 31 Dec 2025 (subsidiaries 100% basis; Zaldivar 50%) · published 26 Mar 2026 Ref: 257
|
| Total | M&I = Measured + Indicated (overlaps both) | 50.20 Mt | — | — | 1.53% | 0.77 Mt Cu | 31 Dec 2025 | 257Unverified | notes (3)Source: Antofagasta plc - Annual Report and Financial Statements 2025, incl. Ore Reserves and Mineral Resources as at 31 Dec 2025 (subsidiaries 100% basis; Zaldivar 50%) · published 26 Mar 2026 Ref: 257
|
| Total | Inferred | 205.50 Mt | — | — | 1.23% | 2.53 Mt Cu | 31 Dec 2025 | 257Unverified | notes (3)Source: Antofagasta plc - Annual Report and Financial Statements 2025, incl. Ore Reserves and Mineral Resources as at 31 Dec 2025 (subsidiaries 100% basis; Zaldivar 50%) · published 26 Mar 2026 Ref: 257
QA notes:
|
| Total | Total Resources | 255.60 Mt | — | — | 1.29% | 3.30 Mt Cu | 31 Dec 2025 | 257Unverified | notes (3)Source: Antofagasta plc - Annual Report and Financial Statements 2025, incl. Ore Reserves and Mineral Resources as at 31 Dec 2025 (subsidiaries 100% basis; Zaldivar 50%) · published 26 Mar 2026 Ref: 257
|
| Oxides | Indicated | 8.00 Mt | — | — | 1.26% | 0.10 Mt Cu | 31 Dec 2025 | 257Unverified | notes (3)Source: Antofagasta plc - Annual Report and Financial Statements 2025, incl. Ore Reserves and Mineral Resources as at 31 Dec 2025 (subsidiaries 100% basis; Zaldivar 50%) · published 26 Mar 2026 Ref: 257
|
| Oxides | M&I = Measured + Indicated (overlaps both) | 8.00 Mt | — | — | 1.26% | 0.10 Mt Cu | 31 Dec 2025 | 257Unverified | notes (3)Source: Antofagasta plc - Annual Report and Financial Statements 2025, incl. Ore Reserves and Mineral Resources as at 31 Dec 2025 (subsidiaries 100% basis; Zaldivar 50%) · published 26 Mar 2026 Ref: 257
|
| Oxides | Inferred | 13.30 Mt | — | — | 0.98% | 0.13 Mt Cu | 31 Dec 2025 | 257Unverified | notes (3)Source: Antofagasta plc - Annual Report and Financial Statements 2025, incl. Ore Reserves and Mineral Resources as at 31 Dec 2025 (subsidiaries 100% basis; Zaldivar 50%) · published 26 Mar 2026 Ref: 257
QA notes:
|
| Sulphides | Indicated | 42.20 Mt | 6.10 g/t | 8.28 Moz | 1.58% | 0.67 Mt Cu | 31 Dec 2025 | 257Unverified | notes (3)Source: Antofagasta plc - Annual Report and Financial Statements 2025, incl. Ore Reserves and Mineral Resources as at 31 Dec 2025 (subsidiaries 100% basis; Zaldivar 50%) · published 26 Mar 2026 Ref: 257
|
| Sulphides | M&I = Measured + Indicated (overlaps both) | 42.20 Mt | 6.10 g/t | 8.28 Moz | 1.58% | 0.67 Mt Cu | 31 Dec 2025 | 257Unverified | notes (3)Source: Antofagasta plc - Annual Report and Financial Statements 2025, incl. Ore Reserves and Mineral Resources as at 31 Dec 2025 (subsidiaries 100% basis; Zaldivar 50%) · published 26 Mar 2026 Ref: 257
|
| Sulphides | Inferred | 192.20 Mt | 4.17 g/t | 25.77 Moz | 1.25% | 2.40 Mt Cu | 31 Dec 2025 | 257Unverified | notes (3)Source: Antofagasta plc - Annual Report and Financial Statements 2025, incl. Ore Reserves and Mineral Resources as at 31 Dec 2025 (subsidiaries 100% basis; Zaldivar 50%) · published 26 Mar 2026 Ref: 257
QA notes:
|
| Sulphides | Total Resources | 234.30 Mt | 4.51 g/t | 33.97 Moz | — | — | 31 Dec 2025 | 257Unverified | notes (3)Source: Antofagasta plc - Annual Report and Financial Statements 2025, incl. Ore Reserves and Mineral Resources as at 31 Dec 2025 (subsidiaries 100% basis; Zaldivar 50%) · published 26 Mar 2026 Ref: 257
|
Rows are hierarchical, not additive — do not sum a column across rows. Whole-project rows (Area “Total”) already contain the indented named-area rows beneath them, and an issuer's printed per-deposit total can itself contain other listed areas. “M&I” is the issuer's printed Measured + Indicated subtotal: it overlaps the Measured and Indicated rows and is never added alongside them. All derived totals and rollups on this site already exclude the overlapping rows.