Developer · Junior / Minor · Gold · Australia
Last updated 21 June 2026
Data compiled from public filings — information only, not investment advice. AI‑assisted; see methodology.
Portfolio Aggregate · 1 project
Portfolio mode — asset rows are for context only; tab totals use the company aggregation.
Astral Resources Gold Portfolio
Portfolio · Feasibility
Project information
As at 30 June 2025
Description
As at 30 June 2025
Consolidated gold development portfolio of Astral Resources NL in the Eastern Goldfields of Western Australia, comprising the Mandilla, Feysville and Spargoville gold projects (plus the early-stage Carnilya Hill prospect). The three principal projects host a combined JORC 2012 Mineral Resource Estimate of 50Mt at 1.1g/t Au for 1.76Moz and a maiden Probable Ore Reserve of 36.6Mt at 0.9g/t Au for ~1.08Moz, declared with the June 2025 Mandilla Pre-Feasibility Study. The PFS envisions open-pit mining feeding a 2.75Mtpa CIP processing plant over a ~19-year life of mine, producing ~1.41Moz (~95koz/yr). Base-case (A$4,250/oz) pre-tax unleveraged NPV8 is ~A$1.4B (IRR ~101%); an A$5,000/oz upside case lifts NPV8 to ~A$2.0B (IRR ~136%). Pre-production and working capital is estimated at ~A$227M. The company is transitioning from explorer to producer, advancing the project to Definitive Feasibility Study.
Portfolio Aggregate
As at 30 June 2025 · inclusive
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Reserves & resources — detail
As at 30 June 2025
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Development · 2 projects
Mandilla Gold Project
District · Feasibility
Project information
As at 25 June 2025
Description
As at 25 June 2025
Astral's flagship free-milling open-pit gold development in the northern Widgiemooltha greenstone belt, ~70km south of Kalgoorlie, Western Australia, covered by granted Mining Leases (only the standard WA Government gold royalty). The project comprises the Theia, Iris, Eos and Hestia deposits; Theia is the cornerstone, with a >1.6km mineralised footprint of structurally controlled quartz-vein arrays and hydrothermal alteration along the western margin of the Emu Rocks Granite. Metallurgical testwork demonstrates high gravity-recoverable gold, fast leach kinetics and high overall recoveries at coarse grind. The April 2025 JORC 2012 MRE is 41.5Mt at 1.1g/t Au for 1.43Moz; the June 2025 PFS declared a maiden Probable Ore Reserve of 34.3Mt at 0.9g/t Au for ~1.0Moz and selected a 2.75Mtpa CIP plant as the optimum development route. Mandilla is one of the largest undeveloped free-milling open-pit gold development projects in the Kalgoorlie region.
Mining metrics
As at 25 June 2025 · inclusive
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Reserves & resources — detail
Multiple effective dates
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Feysville Gold Project
District · Feasibility
Project information
As at 25 June 2025
Description
As at 25 June 2025
Open-pit gold development project ~south-east of Kalgoorlie, Western Australia, held under 100%-owned granted tenements, incorporating the Think Big, Kamperman and Rogan Josh deposits. The October 2024 JORC 2012 MRE totals 5.0Mt at 1.2g/t Au for 196koz, reported at a 0.39g/t cut-off within pit shells optimised at A$2,500/oz. Feysville contributed a maiden Probable Ore Reserve of 2.3Mt at 1.2g/t Au for 88koz to the June 2025 Mandilla PFS, with ore planned to be trucked to the central Mandilla processing facility. In-fill RC drilling at Kamperman during the year confirmed high-grade gold, and further resource-definition drilling is planned ahead of the Definitive Feasibility Study.
Mining metrics
Multiple effective dates · inclusive
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Reserves & resources — detail
Multiple effective dates
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Exploration · 2 projects
Carnilya Hill Gold Project
Asset · Exploration
Project information
Description
Early-stage gold exploration project ~20km east-south-east of the Feysville project and ~40km south-east of Kalgoorlie, Western Australia, comprising four tenements (M26/047-049, M26/453) over ~2.65km2. Astral holds the gold rights; rights to nickel and other minerals are held by Wyloo Kambalda Pty Ltd. The adjacent Hang Glider Hill prospect (outlined by Lefroy Exploration) hosts a surface gold geochemical anomaly with recovered gold nuggets. No Mineral Resource has been estimated for Carnilya Hill.
Mining metrics
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Spargoville Gold Project
District · Exploration
Project information
As at 7 May 2025
Description
As at 7 May 2025
Gold project acquired in May 2025 through Astral's takeover of Maximus Resources Ltd, located in the Coolgardie Domain of the Kalgoorlie Terrane, ~25km southwest of Kambalda and ~20km west of Gold Fields' St Ives gold camp. The ~117km2 tenement package is adjacent to the Mandilla project and comprises several advanced prospects and deposits including Wattle Dam, Eagles Nest, Larkinville, Hilditch and 5B. As of May 2025 the combined JORC 2012 MRE for Spargoville is 3Mt at 1.4g/t Au for 139koz of contained gold. No Spargoville resources were included in the June 2025 Mandilla PFS; a 76-hole (11,744m) RC drill program commenced in June 2025 to grow and upgrade the resource ahead of potential inclusion in the development plan.
Mining metrics
As at 7 May 2025 · inclusive
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Reserves & resources — detail
As at 7 May 2025
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Assumptions
- The projects listed here reflect the information captured in this workspace and are not necessarily a complete picture of the company's portfolio. For authoritative figures, refer to the company's official filings.
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How to read this tab
- The tables below list unit codes most often used in the Precious Metals sector for this company. MetalPilot stores contained metal or product in the codes below; grade and tonnage use separate fields. In side-by-side comparison views (stock page Portfolio tab, watchlist By sector), heterogeneous source units are converted to each commodity's preferred display unit (for example Moz Au, kt Cu, MMbbl oil) before summing; the same canonical codes appear in project data.
What the Portfolio tab shows
- The Portfolio tab presents a project-level view of the company's reported assets, built from publicly disclosed information (technical reports, annual filings, MD&A, investor presentations, MRMR / R&R statements, NI 43-101 / NI 51-101 / SEC S-K 1300 / SEC S-K 1200 / JORC / SAMREC / PERC / PRMS / COGEH filings, and similar primary sources).
- Figures are grouped by project type (mining, oil & gas, royalty, stream, processing facility, development, portfolio aggregate) and are shown alongside the headline reserve base, headline production, headline grade / quality, cost benchmarks, estimated lifetime, commercial terms (for royalties / streams), operational capacity (for processing) and a single-figure rating where the underlying data supports one.
- Each data table on the Portfolio tab is followed by ONE Assumptions footnote describing the modelling choices for that table; KPI stat-card assumptions appear in the bottom block instead. All legal and section disclaimers are merged into a single disclaimer list at the bottom of the Portfolio tab.
Concepts in your sector — Precious metals
- Resources vs Reserves. Resources are geological estimates that could one day be mined; Reserves are the subset with a feasibility study and plausible positive economics. Measured → Indicated → Inferred describe increasing geological uncertainty; Proven → Probable are reserve labels from Measured/Indicated. Inferred resources are not convertible to reserves under most codes.
- Grade (g/t) is the headline number on gold/silver pages. High-grade is often above 5 g/t; >10 g/t is bonanza territory; below 1 g/t is bulk low-grade. Open-pit cut-offs are typically lower than underground.
- AISC (All-In Sustaining Cost) is direct cash costs + sustaining capex + royalties + corporate overhead + reclamation, per ounce produced. C1 strips sustaining capex and corporate overhead. Both are non-GAAP and defined differently across issuers.
- By-product credits. Polymetallic deposits credit by-product value against the main metal cost; negative AISC after credits does not mean the main metal is sold below cash cost.
Portfolio tab — table guide
- Portfolio KPIs — company-level headline numbers aggregated from the featured projects (project counts, attributable annual production by commodity, attributable resource base by commodity, last filing date, operator share). USD value lines multiply attributable volumes by the resolved snapshot price.
- Portfolio snapshot — one-screen summary of the portfolio: counts by type and status, country mix, reporting standards used, operator share, primary commodity, attributable annual production summary and attributable resource base summary.
- Mining — one row per mining project, with columns for project name, location, status, primary commodities, production (with rating), reserves & resources (with rating), grade (with rating), costs and estimated lifetime. Multi-commodity projects emit one summary row per commodity.
- Royalty — one row per royalty interest held by the company. Columns cover the underlying project, operator, commodity, commercial terms (rate, type, cap, area-of-interest), attributable production, attributable reserves and estimated lifetime.
- Stream — one row per metal stream held by the company. Each row shows the underlying project, the streamed commodity, the headline stream percentage, the ongoing per-ounce / per-tonne payment, and attributable production / reserves.
- Processing facilities — one row per midstream / processing facility (pipeline, fractionator, LNG train, storage cavern, refinery, smelter, mill, heap-leach pad, CPP, etc.). Columns include nameplate capacity, contracted capacity, feedstock commodities and operational footprint.
- Development — projects in development status or in a pre-production lifecycle phase. The production column is re-labelled 'Targeted production (rating)' to highlight that the figures are plans, not actuals.
- Portfolio Aggregate — a single company-level row used when the company itself publishes a portfolio rollup (e.g. company-wide 2P barrels across all properties).
- Reserves & resources — detail — a leaf-category pivot showing every reserve and resource category disclosed across the projects.
- NPV (grouped) — all NPV rows captured from the filings, grouped by commodity, resource category, development status and pricing case. Each NPV figure is shown with its discount rate, basis (before-tax / after-tax), currency and value scale.
Ownership / Working interest
- Ownership percentage means the company's working-interest share of the asset: its slice of the project before royalties and before government take. It is shown on a 0–100 scale.
- Mines, oil and gas fields, and processing facilities — this is how much of the asset belongs to the company under that working-interest idea. One hundred percent is fully owned; a lower number usually means partners share the rest.
- Royalties and streaming agreements — the percentage is often not the story; what matters economically is usually the royalty or stream rate, shown elsewhere alongside these figures.
- Oil and gas — read this as gross working interest only. Do not treat it as net production or net wells after royalties; when filings distinguish gross from net, that shows up in how the resource numbers themselves are labelled.
- Below 100% — the short summary for each project names other owners and their stakes when the source says who they are.
- NRI vs WI (O&G). Working interest (WI) is the obligation to pay a share of costs; net revenue interest (NRI) is the share of revenue after royalties and overriding-royalty interests. A 100% WI well rarely produces 100% NRI; typical onshore U.S. NRI is 75–87.5% of WI depending on the lease royalty.
- Operator vs non-operator. The operator runs day-to-day operations; non-operating partners pay their WI share of costs but do not run the asset. Some Portfolio rows show operator share where disclosed.
Unit codes, conversion cheat sheets, cost benchmarks (AISC, C1–C3), reporting standards (NI 43-101, JORC, SEC S-K 1300) and resource/reserve category definitions live in the full terminology & units reference.
Each table lists the numeric band for scores 1–5 (production and resource base; grade where applicable for mining commodities) using the same thresholds as project rating stat cards. Only commodities that appear on featured projects for this document are listed.
Gold
Copper uses kt Cu bands (Mlb Cu when lb-scale copper resources appear on featured projects). Lithium grade uses hard-rock % Li₂O bands unless brine-style extraction or brine units appear on featured projects.
Assumptions
- Presented values are denominated in currency of the country where the company is headquartered. Values like market capitalization might differ from the values visible in other parts of the page, where the currency is always USD.
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