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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 | — | — | — | — |
| Indicated | 1,236.36 Mt | 0.22 g/t | 8.72 Moz | 31 July 2026 |
| Inferred | 260.24 Mt | 0.15 g/t | 1.21 Moz | 31 July 2026 |
| Total Resources | 1,496.60 Mt | 0.21 g/t | 9.93 Moz | 31 July 2026 |
| Proved | — | — | — | — |
| Probable | — | — | — | — |
| Total Reserves | — | — | — | — |
| Category | Tonnes (Mt) | Grade (% Cu) | Contained (Mt Cu) | As at |
|---|---|---|---|---|
| Measured | — | — | — | — |
| Indicated | 1,236.36 Mt | 0.14% | 1.72 Mt Cu | 31 July 2026 |
| Inferred | 260.24 Mt | 0.12% | 0.31 Mt Cu | 31 July 2026 |
| Total Resources | 1,496.60 Mt | 0.14% | 2.03 Mt Cu | 31 July 2026 |
| Proved | — | — | — | — |
| Probable |
| Category | Tonnes (Mt) | Grade (% Mo) | Contained (Mt Mo) | As at |
|---|---|---|---|---|
| Measured | — | — | — | — |
| Indicated | 1,236.36 Mt | 0.01% | 0.10 Mt Mo | 31 July 2026 |
| Inferred | 260.24 Mt | 0.01% | 0.02 Mt Mo | 31 July 2026 |
| Total Resources | 1,496.60 Mt | 0.01% | 0.11 Mt Mo | 31 July 2026 |
| Proved | — | — | — | — |
| Probable |
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 | Cu | Mo | As at | Source | Provenance | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Grade (g/t Au) | Contained (Moz Au) | Grade (% Cu) | Contained (Mt Cu) | Grade (% Mo) | Contained (Mt Mo) | ||||||
| Total | Indicated | 1,236.36 Mt | 0.22 g/t | 8.72 Moz | 0.14% | 1.72 Mt Cu | 0.01% | ||||
| — |
| — |
| — |
| Total Reserves | — | — | — | — |
| — |
| — |
| — |
| Total Reserves | — | — | — | — |
| 31 July 2026 |
| Table 1: 2026 Integrated North Island Project Resource Estimate ($11.00 NSR cut-off) — Total IndicatedUnverified |
notes (4)Source: Northisle Announces Significant Increase to North Island Resource Estimate · published 06 Aug 2026 Ref: Table 1: 2026 Integrated North Island Project Resource Estimate ($11.00 NSR cut-off) — Total Indicated
QA notes:
|
| Total | Inferred | 260.24 Mt | 0.15 g/t | 1.21 Moz | 0.12% | 0.31 Mt Cu | 0.01% | 0.02 Mt Mo | 31 July 2026 | Table 1: 2026 Integrated North Island Project Resource Estimate ($11.00 NSR cut-off) — Total InferredUnverified | notes (5)Source: Northisle Announces Significant Increase to North Island Resource Estimate · published 06 Aug 2026 Ref: Table 1: 2026 Integrated North Island Project Resource Estimate ($11.00 NSR cut-off) — Total Inferred
QA notes:
|
| Total | Total Resources | 1,496.60 Mt | 0.21 g/t | 9.93 Moz | 0.14% | 2.03 Mt Cu | 0.01% | 0.11 Mt Mo | 31 July 2026 | derived from 2 rows | — |
| Hushamu | Indicated | 927.67 Mt | 0.20 g/t | 5.83 Moz | 0.14% | 1.28 Mt Cu | 0.01% | 0.08 Mt Mo | 31 July 2026 | Table 1: 2026 Integrated North Island Project Resource Estimate ($11.00 NSR cut-off)Unverified | notes (4)Source: Northisle Announces Significant Increase to North Island Resource Estimate · published 06 Aug 2026 Ref: Table 1: 2026 Integrated North Island Project Resource Estimate ($11.00 NSR cut-off)
QA notes:
|
| Hushamu | Inferred | 210.43 Mt | 0.14 g/t | 0.98 Moz | 0.12% | 0.25 Mt Cu | 0.01% | 0.01 Mt Mo | 31 July 2026 | Table 1: 2026 Integrated North Island Project Resource Estimate ($11.00 NSR cut-off)Unverified | notes (5)Source: Northisle Announces Significant Increase to North Island Resource Estimate · published 06 Aug 2026 Ref: Table 1: 2026 Integrated North Island Project Resource Estimate ($11.00 NSR cut-off)
QA notes:
|
| Northwest Expo | Indicated | 105.16 Mt | 0.50 g/t | 1.69 Moz | 0.09% | 0.09 Mt Cu | 0.01% | 0.01 Mt Mo | 31 July 2026 | Table 1: 2026 Integrated North Island Project Resource Estimate ($11.00 NSR cut-off)Unverified | notes (4)Source: Northisle Announces Significant Increase to North Island Resource Estimate · published 06 Aug 2026 Ref: Table 1: 2026 Integrated North Island Project Resource Estimate ($11.00 NSR cut-off)
QA notes:
|
| Northwest Expo | Inferred | 7.40 Mt | 0.26 g/t | 0.06 Moz | 0.04% | 3.18 kt Cu | 0.01% | 0.45 kt Mo | 31 July 2026 | Table 1: 2026 Integrated North Island Project Resource Estimate ($11.00 NSR cut-off)Unverified | notes (4)Source: Northisle Announces Significant Increase to North Island Resource Estimate · published 06 Aug 2026 Ref: Table 1: 2026 Integrated North Island Project Resource Estimate ($11.00 NSR cut-off)
QA notes:
|
| Red Dog | Indicated | 90.46 Mt | 0.22 g/t | 0.63 Moz | 0.19% | 0.17 Mt Cu | 0.00% | 3.18 kt Mo | 31 July 2026 | Table 1: 2026 Integrated North Island Project Resource Estimate ($11.00 NSR cut-off)Unverified | notes (5)Source: Northisle Announces Significant Increase to North Island Resource Estimate · published 06 Aug 2026 Ref: Table 1: 2026 Integrated North Island Project Resource Estimate ($11.00 NSR cut-off)
QA notes:
|
| Red Dog | Inferred | 3.42 Mt | 0.14 g/t | 0.02 Moz | 0.21% | 0.01 Mt Cu | 0.00% | 0.11 kt Mo | 31 July 2026 | Table 1: 2026 Integrated North Island Project Resource Estimate ($11.00 NSR cut-off)Unverified | notes (5)Source: Northisle Announces Significant Increase to North Island Resource Estimate · published 06 Aug 2026 Ref: Table 1: 2026 Integrated North Island Project Resource Estimate ($11.00 NSR cut-off)
QA notes:
|
| West Goodspeed | Indicated | 113.07 Mt | 0.16 g/t | 0.57 Moz | 0.16% | 0.18 Mt Cu | 0.01% | 0.01 Mt Mo | 31 July 2026 | Table 1: 2026 Integrated North Island Project Resource Estimate ($11.00 NSR cut-off)Unverified | notes (5)Source: Northisle Announces Significant Increase to North Island Resource Estimate · published 06 Aug 2026 Ref: Table 1: 2026 Integrated North Island Project Resource Estimate ($11.00 NSR cut-off)
QA notes:
|
| West Goodspeed | Inferred | 38.99 Mt | 0.13 g/t | 0.16 Moz | 0.13% | 0.05 Mt Cu | 0.01% | 1.81 kt Mo | 31 July 2026 | Table 1: 2026 Integrated North Island Project Resource Estimate ($11.00 NSR cut-off)Unverified | notes (5)Source: Northisle Announces Significant Increase to North Island Resource Estimate · published 06 Aug 2026 Ref: Table 1: 2026 Integrated North Island Project Resource Estimate ($11.00 NSR cut-off)
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. All derived totals and rollups on this site already exclude the overlapping rows.