WIN Metals Hands Full Mandilla Control to Astral in $9M Tenure Deal
Key Takeaways
- Astral Resources has agreed to pay WIN Metals $9,050,000 to acquire clean title over the tenure critical to developing the Mandilla Gold Project, with completion scheduled on or before 5 October 2026.
- The deal ends a complex split-rights structure where Astral frequently held gold rights only while WIN's subsidiary held the underlying tenure — consolidated control now removes a recognised blocker to project financing and permitting.
- Mandilla's June 2025 PFS delivered a base-case NPV8 of $1.4 billion at A$4,250/oz gold, rising to $2.9 billion at A$4,250/oz, underpinning the strategic value of the tenure now being secured.
- The April 2026 Mineral Resource Estimate for Mandilla stands at 53.5Mt at 1.0 g/t Au for 1.74Moz, with group resources across all projects exceeding 2Moz of contained gold.
- With unencumbered tenure in place, Astral can now advance permitting, environmental approvals, and a Definitive Feasibility Study without third-party dependencies or split-rights complications.
Tenure secured: Astral takes full control of the Mandilla development footprint
Astral Resources NL (ASX: AAR) has announced a tenure rationalisation transaction with WIN Metals Ltd (ASX: WIN), giving Astral title and unfettered control over the tenure critical to developing its 100%-owned Mandilla Gold Project, located 70km south of Kalgoorlie in Western Australia.
Total consideration payable by Astral to WIN is $9,050,000 (excl. GST), structured as $8,050,000 on completion and a further $1,000,000 following registration of mining lease M15/96. Completion is scheduled on or before Monday, 5 October 2026.
Managing Director Marc Ducler framed the strategic significance directly:
Marc Ducler, Managing Director
“Importantly, the transaction provides Astral with title and unfettered control over the tenure which is required for the Mandilla Gold Project development. This significantly improves Astral’s permitting, approvals pathways and ultimately project financing.”
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What the transaction involves
This was a bilateral tenure rationalisation, with both companies exchanging rights to resolve a complex overlapping tenure structure that had previously split gold, nickel, and other commodity rights across multiple parties.
Astral receives:
- Transfer of tenure and all mineral rights (excluding lithium rights) on mining leases M15/96, M15/97, M15/653, M15/100, M15/1271 and miscellaneous licence 15/254 from WIN to Astral
- Transfer of nickel rights on M15/633 to Astral
- A Mining Rights Agreement over all mineral rights (excluding lithium rights) in favour of Astral over a portion of M15/99 covering the Eagles Nest gold deposit
- Note: M15/97 includes the Zabel nickel resource of 325kt @ 2% Ni for 6,360 Ni tonnes, which transfers to Astral
WIN receives:
- A Mining Rights Agreement over all mineral rights in favour of WIN’s subsidiary Mt Edwards Critical Metals Pty Ltd (MECM) over a portion of M15/653 covering WIN’s McEwen and McEwen Hangingwall nickel resources
- Transfer of gold rights on mining leases M15/99, M15/101 and M15/102 to MECM
Prior to this transaction, Astral frequently held gold rights only, while MECM held the underlying tenure and other commodity rights. This deal ends that split, giving Astral clean, unfettered control over the Mandilla development footprint.
WIN Metals’ Radio gold project, advancing under a low-capital production study, represents the kind of near-term gold focus that helps explain why WIN was motivated to retain clean nickel rights over its McEwen resources rather than hold a more complex shared-tenure arrangement over gold ground.
Why tenure control matters in gold project development
For investors not familiar with mining tenure, understanding why this matters is important. When a company moves a gold project from exploration or pre-feasibility stage toward development, who holds the rights — and how cleanly — has direct consequences for timeline and cost.
Three investor-relevant points stand out:
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Permitting: Regulators require the project holder to be unambiguously the tenure holder. Split rights, where one party holds gold rights and another holds the underlying tenure, can create delays and introduce risk in the approvals process. Consolidated tenure removes that ambiguity.
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Project financing: Banks, streaming partners, and offtake counterparties require clean title before committing capital. Fragmented tenure structures are a recognised financing blocker. A lender will not advance funds against an asset where a third party holds co-rights over the same ground.
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Operational certainty: Removing a joint-rights structure eliminates the need for third-party approvals on day-to-day operational decisions, simplifying project management as development progresses.
For Mandilla specifically, Astral is set to hold all required rights (excluding lithium) over the development footprint. This removes a meaningful de-risking item ahead of any Definitive Feasibility Study or formal financing process.
The Mandilla Gold Project — scale and development status
The Mandilla Gold Project sits in the northern Widgiemooltha greenstone belt, 70km south of Kalgoorlie. It comprises four deposits — Theia, Iris, Eos, and Hestia — and is surrounded by world-class producers including Northern Star Resources’ Golden Mile Super Pit, Gold Fields’ St Ives Gold Mine, and Westgold Resources’ Beta Hunt Gold Mine.
In April 2026, Astral announced a Mineral Resource Estimate (MRE) of 53.5Mt at 1.0 g/t Au for 1.74Moz of contained gold for Mandilla alone.
The June 2025 Preliminary Feasibility Study (PFS) — a study that models the project’s engineering and economics before committing to a full feasibility — delivered the following results:
- Standalone project comprising seven open pit mines feeding a 2.75Mtpa processing facility
- Production target of 95koz per year for the first 12 years
- Base case gold price of A$4,250/oz, generating an NPV8 (net present value at an 8% discount rate) of $1.4 billion
- Upside case at A$6,250/oz increases the NPV8 to $2.9 billion
Metallurgical testing across all four main deposits has demonstrated high gravity recoverable gold, fast leach kinetics, and exceptional overall gold recoveries with low reagent consumptions — results that underpin the project’s economic assumptions.
Group resource and reserve summary
| Project | Probable Tonnes (Mt) | Probable Grade (Au g/t) | Probable Metal (oz Au) | Total Tonnes (Mt) | Total Grade (Au g/t) | Total Metal (oz Au) |
|---|---|---|---|---|---|---|
| Mandilla | 34.3 | 0.9 | 1,000,000 | 34.3 | 0.9 | 1,000,000 |
| Feysville | 2.3 | 1.2 | 88,000 | 2.3 | 1.2 | 88,000 |
| Total | 36.6 | 0.9 | 1,082,000 | 36.6 | 0.9 | 1,082,000 |
| Project | Measured (Mt) | Measured (g/t) | Measured (oz Au) | Indicated (Mt) | Indicated (g/t) | Indicated (oz Au) | Inferred (Mt) | Inferred (g/t) | Inferred (oz Au) | Total (Mt) | Total (g/t) | Total (oz Au) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mandilla | 1.3 | 1.3 | 57,000 | 32.6 | 1.0 | 1,092,000 | 19.6 | 0.9 | 588,000 | 53.5 | 1.0 | 1,736,000 |
| Feysville | – | – | – | 3.5 | 1.3 | 144,000 | 1.5 | 1.1 | 53,000 | 5.0 | 1.2 | 196,000 |
| Spargoville | – | – | – | 1.9 | 1.3 | 81,000 | 1.1 | 1.6 | 58,000 | 3.0 | 1.4 | 139,000 |
| Group Total | 1.3 | 1.3 | 57,000 | 38.1 | 1.1 | 1,317,000 | 22.2 | 1.2 | 698,000 | 61.6 | 1.0 | 2,072,000 |
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Path forward — from tenure consolidation to project financing
With clean title now in place, the logical development sequence for Astral becomes clearer. The key steps now enabled include:
- Consolidated tenure positions Astral to advance permitting and environmental approvals without tenure-related complications or third-party dependencies
- Unfettered control strengthens Astral’s position in any future project financing discussions, whether structured as debt, royalty, or offtake agreements
- A Definitive Feasibility Study (DFS) or formal financing mandate can now proceed without the encumbrance of split mineral rights
The formal trigger point is near-term, with completion scheduled on or before 5 October 2026.
With over 2Moz in group resources, a $1.4 billion NPV8 from the PFS, and now unencumbered tenure over the Mandilla development footprint, the investment case for Astral Resources is materially strengthened ahead of the next phase of the project’s advancement.
Ready to Explore the Full Investment Case for Astral Resources’ Mandilla Gold Project?
With clean, consolidated tenure now secured over the Mandilla development footprint, Astral Resources (ASX: AAR) is positioned to advance permitting, environmental approvals, and project financing without the encumbrance of split mineral rights — backed by a $1.4 billion NPV8 PFS and over 2Moz in group resources.
Explore the complete details on Astral Resources’ development pipeline and the strategic significance of this tenure consolidation by visiting the Astral Resources project profile on Discovery Alert.