Darling Range (Huntly and Willowdale): a bauxite operation in Australia
Darling Range (Huntly and Willowdale) is an open-pit mine producing bauxite in Darling Range, Western Australia, operated by Alcoa. The sources report 25.8 million dry metric tons (mdmt), zero-moisture basis for CY2025; the basis is 100% of the property, as reported by the operator (zero-moisture basis). Measured as bauxite, whole-operation output for CY2025 is 25,800,000 tonnes: about 5.9% of world bauxite output in 2025 and about 27% of Australia's; it is one of 9 operations on this site whose output can be stated in bauxite.
Who owns and operates it?
| Owner | Interest | As of |
|---|---|---|
| Alcoa | 100% | 31 December 2025 |
How much does it produce?
| Period | Output | Basis | Where in the source |
|---|---|---|---|
| CY2025 | 25.8 million dry metric tons (mdmt), zero-moisture basis | 100% of the property, as reported by the operator (zero-moisture basis) | printed p.33, 'Summary of Attributable Annual Bauxite Production in mdmt', row Australia, Darling Range (Western Australia), 2025 column; zero-moisture statement printed p.32 · Alcoa Corporation |
| CY2024 | 27.7 million dry metric tons (mdmt), zero-moisture basis | 100% of the property, as reported by the operator (zero-moisture basis) | printed p.33, same row, 2024 column · Alcoa Corporation |
Between CY2024 and CY2025 the reported figure fell by 6.9%, in the same unit and on the same basis.
How the bauxite figure is worked out. Alcoa prints 25.8 million dry metric tons (zero-moisture basis) of attributable production for Darling Range in 2025. Alcoa's owners' mining rights are 100%, so the figure covers the whole property. The 10-K rounds to 0.1 million tons. Converted from million tons to tonnes. World bauxite mine production in 2025 was 440,000,000 tonnes (USGS Mineral Commodity Summaries 2026); Australia produced 97,000,000 tonnes.
Status: operating, as of 31 December 2025.
- The 10-K reports the Huntly and Willowdale mining centers together as Darling Range and does not split them. They supply Alcoa's Pinjarra and Wagerup refineries according to the 10-K; refineries are separate from this bauxite mine entry.
- Alcoa prints 33.0 million dry metric tons for Alcoa-operated mines (Darling Range 25.8, Juruti 6.7, Pocos de Caldas 0.5) and 4.5 million dry metric tons proportional production from partnership mines.
- USGS prints 97 million tonnes for Australia in 2025. USGS also says mining began in June 2025 within expanded boundaries at a bauxite mine near Boddington, Australia; South32's annual report prints no bauxite tonnage for it.
- Alumina refineries and aluminum smelters are separate from this bauxite mine entry.
How does it compare?
Other bauxite operations on this site: Weipa (including Amrun), Gove, Porto Trombetas (Mineracao Rio do Norte), Sangaredi (Compagnie des Bauxites de Guinee), Societe Miniere de Boke (SMB), Boffa (Chalco Guinea), Pingguo, Shanxi New Materials mines (merged line), Juruti, Pocos de Caldas, Paragominas, Panchpatmali bauxite mines. In Australia: Weipa (including Amrun), Gove. See where bauxite comes from for the country totals, the country page for Australia, and Alcoa for its other operations here.
Sources
- Alcoa Corporation: Form 10-K for the year ended 31 December 2025 (annual report (SEC 10-K), FY2025 (calendar), with 2024 and 2023 comparatives). Opened 4 November 2026; used: cover page; printed pp.3, 10, 32-35, 46 (Item 1 Alumina segment; Item 2 Properties, bauxite production, interests and mine types tables).
- U.S. Geological Survey: Mineral Commodity Summaries 2026: Bauxite and Alumina (government statistical summary, 2025 (world and country bauxite mine production)). Opened 3 November 2026; used: world mine production and reserves table.
Method and limits
- Reported, not estimated. Output is the figure the operator or owner published, in the unit it used. This site does not estimate output where none is published.
- Shares. A share divides output in bauxite by the USGS world or country total for 2025. Where the operator's year is a fiscal year or the unit is a concentrate or a carbonate equivalent, the share is approximate or not given.
- What is compared. Operators print tonnes of bauxite on a dry or wet basis, or do not say which. USGS bauxite mine production is in dry tonnes, so where the basis differs or is not stated the share is indicative.
- Whole operation or owner's share. The basis column says which. A joint venture's output is never counted twice.
- Partial list. Only operations with a published figure are listed, so the rank is among those on this site, not among every bauxite mine. Shares of a country's output mix periods and bases, so treat them as indicative.
- Made with AI assistance, checked against sources. The facts were gathered from the documents above by AI-assisted research and re-checked against those documents by a second, independent pass; the page text is generated from the data. No professional review took place. How the site is made. To report an error, contact us; fixes are logged on the corrections page.