Astral’s Mandilla resource moves closer to a development decision

Mandilla moves from exploration into execution

Astral Resources NL (ASX:AAR) is entering the most consequential phase of its gold strategy with a larger resource base, a substantially stronger cash position and a definitive feasibility study for Mandilla targeted for completion in the March 2027 quarter.

The Western Australian developer reported a group Mineral Resource of 61.6 million tonnes at 1.0 grams per tonne gold for 2.07 million ounces, alongside 36.6 million tonnes of Ore Reserves at 0.9g/t for 1.08 million ounces. Mandilla accounts for 1.74 million ounces of the resource and 1.00 million ounces of the reserve, making it the clear centre of the development case.

The figures are not yet a production outcome. The Ore Reserve remains based on the earlier Mandilla pre-feasibility study, while the DFS is still reviewing mine designs, schedules, capital costs and operating costs. Astral has appointed GR Engineering Services for the design and engineering work, but the final investment decision remains ahead.

$65 million provides runway, not a mine

Astral raised approximately $65 million before costs through a two-tranche placement priced at $0.20 per share. It finished the year with $65.1 million in cash and $63.8 million in working capital, compared with $18.6 million and $15.3 million respectively a year earlier.

The stronger balance sheet gives the company room to continue drilling, advance approvals and progress engineering. It does not remove the financing challenge: Astral used $21.5 million across operating and investing activities during the year, remains loss-making with a net loss of $2.34 million, and says future development may require substantial additional capital. The company has appointed a debt adviser to explore funding alternatives for Mandilla.

Theia drilling expands the development inventory

Exploration results provide the report’s strongest technical momentum. Astral completed about 84 kilometres of drilling across Mandilla, Feysville and Spargoville, including 56,689 metres at Mandilla. At Theia, deep diamond drilling has continued to intersect broad mineralisation below the April 2026 resource shell.

Among the reported results was a 358.23-metre intersection at 1.03g/t gold in hole AMRCD263, including 15.70 metres at 3.40g/t and 127.27 metres at 1.20g/t. Hole AMRCD378 returned 52.75 metres at 4.67g/t, while AMRCD374 included a narrow 1-metre interval at 219g/t. These are drill intersections, not reserve additions: any impact on the resource, mine plan or economics depends on further drilling, interpretation and estimation.

Approvals and early production create the next catalysts

A Land Use Agreement with the Marlinyu Ghoorlie Native Title Claimant Group now covers the Mandilla and Spargoville project areas. Astral says this allows it to finalise site layouts and progress submissions for the Native Vegetation Clearing Permit and Mine Development and Closure Plan, targeted for September 2026, with a Works Approval expected thereafter.

At Feysville, the proposed Think Big joint venture with Mineral Mining Services is aimed at an earlier cash-generating opportunity. MMS would fund 100% of development costs under the proposed structure, subject to a binding agreement and approvals. Astral says mining is targeted for the March 2027 quarter, with haulage expected to begin in the June 2027 quarter. The critical infrastructure item is the design and construction of the haul-road intersection with the Goldfields Highway.

The funding and execution test remains

Astral’s report presents a portfolio with genuine scale, but the distance between a 2.07-million-ounce resource and a producing operation is still measured in permits, water, engineering, funding and construction. The company identifies water supply as a critical requirement and acknowledges that cost escalation, approval delays, contractor performance and mining outcomes could affect the Mandilla timetable and economics.

The immediate evidence will come from the DFS, permitting submissions, water access and the financing pathway. Until those pieces settle, Theia’s deep gold and Think Big’s proposed early production remain valuable options rather than bankable cash flow.