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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 | 257.19 Mt | 0.80 g/t | 6.63 Moz | 30 Apr 2025 |
| Indicated | 118.56 Mt | 0.78 g/t | 2.96 Moz | 30 Apr 2025 |
| M&I = Measured + Indicated (overlaps both) | 375.75 Mt | 0.79 g/t | 9.58 Moz | 30 Apr 2025 |
| Inferred | 3.18 Mt | 0.32 g/t | 0.03 Moz | 30 Apr 2025 |
| Total Resources | 149.57 Mt | 0.76 g/t | 3.65 Moz | 30 Apr 2025 |
| Proved | 181.92 Mt | 0.82 g/t | 4.78 Moz | 30 Apr 2025 |
| Probable | 47.44 Mt | 0.78 g/t | 1.18 Moz | 30 Apr 2025 |
| Total Reserves | 229.35 Mt | 0.81 g/t | 5.96 Moz | 30 Apr 2025 |
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.
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.
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 | 149.57 Mt | 0.76 g/t | 3.65 Moz | 30 Apr 2025 | derived from 3 rows | |
| — |
| Open pit | Measured | 257.19 Mt | 0.80 g/t | 6.63 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 | 118.56 Mt | 0.78 g/t | 2.96 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) | 375.75 Mt | 0.79 g/t | 9.58 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 | 3.18 Mt | 0.32 g/t | 0.03 Moz | 30 Apr 2025 | p.286 - Consolidated audited mineral resource statement for Sonora properties (AMC)Manual entry | notes (3)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:
|
| Area | Category | Tonnes (Mt) | Au | As at | Source | Provenance | |
|---|---|---|---|---|---|---|---|
| Grade (g/t Au) | Contained (Moz Au) | ||||||
| Open pit | Proved | 181.92 Mt | 0.82 g/t | 4.78 Moz | 30 Apr 2025 | p.289 - Consolidated audited ore reserve statement for Sonora properties (AMC)Manual entry | notes (3)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.289 - Consolidated audited ore reserve statement for Sonora properties (AMC)
QA notes:
|
| Open pit | Probable | 47.44 Mt | 0.78 g/t | 1.18 Moz | 30 Apr 2025 | p.289 - Consolidated audited ore reserve statement for Sonora properties (AMC)Manual entry | |
| Open pit | Total Reserves | 229.35 Mt | 0.81 g/t | 5.96 Moz | 30 Apr 2025 | p.289 - Consolidated audited ore reserve statement for Sonora properties (AMC)Manual entry | |
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.
Dotted Total-row tonnes/grade are derived under the active Resources treatment: tonnes netted of (or grossed by) the reserve tonnage alongside contained, grade re-derived as netted contained ÷ netted tonnes — not the published figures.