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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 Au) | Contained (Moz Au) | As at |
|---|---|---|---|---|
| Measured | 69.70 Mt | 0.40 g/t | 0.90 Moz | 30 Apr 2025 |
| Indicated | 6.11 Mt | 0.44 g/t | 0.09 Moz | 30 Apr 2025 |
| M&I = Measured + Indicated (overlaps both) | 75.81 Mt | 0.40 g/t | 0.98 Moz | 30 Apr 2025 |
| Inferred | 0.28 Mt | 0.35 g/t | 3 koz | 30 Apr 2025 |
| Total Resources | 76.09 Mt | 0.40 g/t | 0.99 Moz | 30 Apr 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.
Percentile of this project's current total Resource among covered peers (P100 = largest / highest grade). Basis and Inferred toggles apply.
| Area | Category | Tonnes (Mt) | Au | As at | Source | Provenance | |
|---|---|---|---|---|---|---|---|
| Grade (g/t Au) | Contained (Moz Au) | ||||||
| Total | Total Resources | 76.09 Mt | 0.40 g/t | 0.99 Moz | 30 Apr 2025 | derived from 3 rows | |
| — |
| Open pit | Measured | 69.70 Mt | 0.40 g/t | 0.90 Moz | 30 Apr 2025 | p.286 - Consolidated audited mineral resource statement for Sonora properties (AMC)Manual entry | notes (4)Source: Fresnillo plc - Annual Report and Accounts 2025, incl. Mineral Resources and Ore Reserves tables as at 31 Dec 2025 · published 17 Apr 2026 Ref: p.286 - Consolidated audited mineral resource statement for Sonora properties (AMC)
QA notes:
|
| Open pit | Indicated | 6.11 Mt | 0.44 g/t | 0.09 Moz | 30 Apr 2025 | p.286 - Consolidated audited mineral resource statement for Sonora properties (AMC)Manual entry | notes (4)Source: Fresnillo plc - Annual Report and Accounts 2025, incl. Mineral Resources and Ore Reserves tables as at 31 Dec 2025 · published 17 Apr 2026 Ref: p.286 - Consolidated audited mineral resource statement for Sonora properties (AMC)
QA notes:
|
| Open pit | M&I = Measured + Indicated (overlaps both) | 75.81 Mt | 0.40 g/t | 0.98 Moz | 30 Apr 2025 | p.286 - Consolidated audited mineral resource statement for Sonora properties (AMC)Manual entry | notes (4)Source: Fresnillo plc - Annual Report and Accounts 2025, incl. Mineral Resources and Ore Reserves tables as at 31 Dec 2025 · published 17 Apr 2026 Ref: p.286 - Consolidated audited mineral resource statement for Sonora properties (AMC)
QA notes:
|
| Open pit | Inferred | 0.28 Mt | 0.35 g/t | 3 koz | 30 Apr 2025 | p.286 - Consolidated audited mineral resource statement for Sonora properties (AMC)Manual entry | notes (4)Source: Fresnillo plc - Annual Report and Accounts 2025, incl. Mineral Resources and Ore Reserves tables as at 31 Dec 2025 · published 17 Apr 2026 Ref: p.286 - Consolidated audited mineral resource statement for Sonora properties (AMC)
QA notes:
|
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.