NHC Lifts Coal Resources to 2,960Mt Following Geological Modelling Upgrades
Key Takeaways
- Total group coal resources increased by 413Mt to 2,960Mt as at 31 May 2026, driven entirely by new geological modelling at Bengalla and New Acland — all other assets remain unchanged.
- Bengalla delivered a 262Mt resource uplift through updated modelling across Mining Leases and adjoining Exploration Licences EL9431 and EL9863, with a pre-feasibility study now underway on mine continuation beyond the current 2039 development consent.
- New Acland's Recoverable Reserves grew from 358Mt to 399Mt and Marketable Reserves from 196Mt to 212Mt, though 283Mt of those Recoverable Reserves require additional approvals beyond Stage 3.
- Total Recoverable Reserves rose from 818Mt to 844Mt and Total Marketable Reserves from 507Mt to 516Mt, reflecting active reserve conversion at both operating mines.
- Bengalla's reserve base declined from 141Mt to 126Mt due to production depletion — a normal outcome at an actively mining site — while the resource base expanded substantially through exploration licence extensions.
NHC lifts total coal resources to 2,960Mt following major geological modelling upgrades
New Hope Corporation has released its 2026 Coal Resources and Reserves update, prepared in accordance with the JORC Code (2012), as at 31 May 2026. Total group coal resources have increased from 2,547Mt (2025) to 2,960Mt (2026), driven by new geological modelling work across its two operating mines, Bengalla and New Acland.
Total Recoverable Reserves rose from 818Mt to 844Mt, while Total Marketable Reserves rose from 507Mt to 516Mt.
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Bengalla and New Acland deliver the resource uplift
Bengalla Mine — 262Mt resource increase driven by exploration licence extensions
Bengalla contributed a 262Mt total resource increase, underpinned by updated geological modelling incorporating recent exploration drilling in Mining Leases and adjoining Exploration Licences EL9431 and EL9863. The uplift breaks down as follows: Underground Resources grew from 76Mt (2025) to 100Mt (2026), with an additional 238Mt of Open Cut Resources identified within the Exploration Licences.
Bengalla Recoverable Reserves moved from 141Mt (2025) to 126Mt (2026), reflecting production depletion at an actively mining site. A concept-level study has been completed assessing the potential extension of operations into the Exploration Licence areas, with pre-feasibility study (PFS) work continuing on the continuation of Bengalla Mine beyond its current approvals. The announcement is explicit that further mine planning and economic analysis are required before any extension can be converted into Reserves.
NHC’s interest in Bengalla is 80%. The figures reported in the table below represent 100% of the joint venture resource. The extension into EL9431 and EL9863 is the key growth optionality signal in this update — the PFS pathway indicates that management is actively working to extend mine life beyond the current 2039 development consent.
New Acland Mine — 151Mt resource increase from revised geological model
New Acland contributed a 151Mt total resource increase, driven by exploration drilling conducted over the past two financial years within approved mining pit limits. That drilling informed an updated JORC-compliant geological model, which together with updated resource boundary extents delivered the uplift.
Reserve movements at New Acland were positive. Recoverable Reserves increased from 358Mt (2025) to 399Mt (2026), and Marketable Reserves rose from 196Mt to 212Mt. An important qualifier: 283Mt of New Acland’s Recoverable Reserves require additional approvals beyond Stage 3. That figure must be factored into any assessment of near-term mine plan access.
The reserve increase is a constructive signal. The updated geological model has added confidence to the mine plan even as active production continues.
Resources and Reserves summary (as at 31 May 2026)
| Asset | 2026 Resources (Mt) | 2025 Resources (Mt) | 2026 Recoverable Reserves (Mt) | 2025 Recoverable Reserves (Mt) |
|---|---|---|---|---|
| New Acland | 636 | 485 | 399 | 358 |
| Bengalla (100%) | 584 | 322 | 126 | 141 |
| Elimatta | 239 | 239 | 112 | 112 |
| Taroom | 460 | 460 | 207 | 207 |
| Other | 1,041 | 1,041 | — | — |
Note: Bengalla figures represent 100% of the joint venture resource. NHC’s equity interest is 80%. All other Resource and Reserve estimates remain unchanged from 2025, with no additional exploration undertaken outside the two operating assets.
What are JORC coal resources and reserves — and why do they matter?
The JORC Code (2012) is Australia’s industry standard for reporting mineral resources and ore reserves. A Resource is a geological estimate of coal present in the ground with reasonable prospects for eventual economic extraction. A Reserve is the economically mineable portion of that resource, with all modifying factors — including mining method, costs, and approvals — applied.
Resources are classified by confidence level: Measured (highest confidence), Indicated, and Inferred (lowest confidence). Only Measured and Indicated Resources can convert to Reserves. Annual updates matter to investors because reserves directly underpin mine life, cashflow visibility, and asset valuation. A growing reserve base signals a longer runway of production; a stable resource base confirms the geological inventory available for future conversion.
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What the resource upgrade means for NHC’s long-term outlook
Two strategic signals stand out from this update. First, Bengalla’s PFS work on mine continuation beyond current approvals shows that management is actively pursuing a life extension beyond 2039. The concept-level study is complete; PFS work is ongoing. No decision has been made, and the announcement is clear that further mine planning and economic analysis are required before any extension converts to Reserves.
Second, New Acland’s growing reserve base under the Stage 3 approval adds confidence to the medium-term production profile. The caveat is material: 283Mt of those Recoverable Reserves require additional approvals beyond Stage 3, meaning the full reserve inventory is not yet accessible under current consents.
All other assets — West Muswellbrook, Elimatta, Collingwood, Taroom, and Woori — remain unchanged from 2025, with no additional exploration undertaken outside the two operating mines. NHC’s portfolio as it stands comprises two producing mines and five exploration assets, underpinned by a 2,960Mt resource base as at 31 May 2026.
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