Australia’s first integrated rare earths refinery
Construction of Iluka Resources’ (ASX: ILU) Eneabba rare earths refinery is moving through a critical phase, positioning WA to host the country’s first fully integrated producer of separated rare earth oxides from 2027.
Located about 140km south of Geraldton, Eneabba will process a rare earth-rich monazite concentrate sourced initially from Iluka’s long-held stockpiles and later from a pipeline of mineral sands projects and third-party feed. The refinery is designed to produce a suite of light and heavy rare earth oxides, including neodymium, praseodymium, dysprosium and terbium — key ingredients in high-performance permanent magnets used in electric vehicles, wind turbines and defence technologies.
The project sits on the footprint of Iluka’s mineral sands operations. Since the 1990s the company has been stockpiling monazite from its Narngulu mineral separation plant at Eneabba, treating it as a strategic resource rather than a waste stream. Iluka has already commissioned an upstream concentrator plant to upgrade this material into a about 90% monazite concentrate, providing direct feed for the new refinery and unlocking value from a resource that has effectively been banked for decades.
Eneabba is being built in a mixed macroeconomic environment. On one side, Iluka’s core mineral sands business has faced subdued conditions, with softer demand for zircon and titanium feedstocks amid global manufacturing weakness and plant closures in parts of the pigment sector. The company has responded by flexing production, curtailing some capacity and focusing on margins, while continuing to invest heavily in its pipeline of growth projects, including Eneabba and Balranald.
At the same time, strategic interest in rare earths has intensified. Export controls, supply disruptions and rising defence and clean-energy spending have sharpened the focus on non-Chinese supply. Governments in the US, Europe and Asia are backing projects that can provide alternative sources of magnet rare earths, while downstream manufacturers are seeking more transparent, long-term contracts to underpin investment in permanent magnet production. Eneabba’s scale and ability to produce heavy rare earth oxides place it squarely in that conversation.
Eneabba is emerging against a backdrop of tightening controls over Chinese rare earth exports and rising concern among governments about the security of supply for magnet rare earths.
In October 2025, China broadened its export controls to cover not only raw rare earth materials but also foreign-manufactured goods containing small amounts of Chinese-origin rare earths, as well as certain mining and processing equipment. From December 2025, exporters and traders must secure licences to ship affected products, further constraining already concentrated supply chains.
These restrictions have pushed spot prices for magnet heavy rare earths, including dysprosium and terbium, to historic highs during 2025, albeit on low traded volumes. China continues to dominate production of heavy rare earth oxides, accounting for nearly all global output.
Eneabba, once commissioned, will be one of the few facilities outside China capable of producing both light and heavy separated rare earth oxides, giving Iluka a point of differentiation in a market where buyers are under pressure to diversify.
The refinery is designed to handle a range of feedstocks and to accommodate third-party concentrates. Iluka says almost 80% of the value of rare earths from the Eneabba stockpile is in neodymium, praseodymium, dysprosium and terbium — the key magnet materials. By establishing a processing hub that can treat material from Iluka operations and other miners, the company is positioning Eneabba as part of a broader, Western-aligned supply chain for critical minerals.
Iluka’s board approved the Eneabba refinery in April 2022 after declaring a final investment decision on a development then costed at about $1.2b. As engineering work progressed, the company revised capital estimates to between $1.7b and $1.8b, prompting further funding negotiations with the Federal Government.
Those talks culminated in late 2024 with an agreement for an additional $400m in government support on top of an existing non-recourse loan facility, taking total Federal Government debt funding for the project to about $1.65b. Iluka will contribute extra equity of $214m and has also committed to a 50% share of a $150m cost overrun facility. The extra funding can only be drawn once the original package is fully utilised and is conditional on Iluka securing offtake agreements and meeting community benefits principles under the Future Made in Australia agenda.
The broadened package locks in a risk-sharing structure between Iluka and the government and confirms Eneabba as a flagship project under the $2b Critical Minerals Facility.
Central to Eneabba’s development is the notion of risk sharing between the private and public sectors. Under the funding structure, Iluka contributes its rare earths stockpile and significant equity while the Federal Government provides long-tenor, non-recourse debt. The base royalty mechanism, which entitles Iluka to an annual payment from refinery cash flows up to a capped amount, is designed to align incentives over the life of the loan. The royalty cap can be reduced if Iluka does not broaden refinery feed beyond the Eneabba stockpile after initial years of production, reinforcing the policy objective of catalysing a wider Australian rare earths industry.
Iluka has highlighted a wide range of potential economic outcomes. Depending on refinery utilisation and feedstock mix, company modelling indicates a post-tax project net present value ranging from about $870m to more than $3.3b, with equity internal rates of return between 35% and just above 50%.
Construction ramps up
Iluka’s September 2025 quarterly report flagged an acceleration of site works, with concrete placement rates ramping up, piling activities completed and several non-process facilities, the high-voltage powerline and gas metering station all delivered. Major equipment deliveries to site are now under way, with installation packages being let progressively as civil works are signed off.
The company says the refinery remains on track for commissioning in 2027. In its 2025 half-year results, Iluka pointed to ongoing concrete works and the arrival of equipment at Eneabba, framing the project as a key plank of the group’s growth pipeline alongside the Balranald critical minerals project in NSW.
As construction peaks, Iluka expects Eneabba to generate hundreds of direct construction jobs and a larger number of contracting and supply chain roles across civil works, fabrication, logistics, camp services and specialist process engineering. Once in operation, the refinery is expected to underpin a long-term operational workforce in the Mid West and support further investment in ancillary infrastructure and services.
Beyond the initial Eneabba stockpile, Iluka is building a portfolio of internal and external feed sources for the refinery. Internally, the Balranald development in New South Wales and the Wimmera rare earths and zircon project in Victoria are being advanced through their respective study phases. Externally, Iluka has highlighted third-party feed agreements, such as its arrangement with Northern Minerals, to underpin higher utilisation rates and extend the refinery’s life.
In parallel with construction, the company is executing an operational readiness plan that encompasses recruitment, training, commissioning strategies, maintenance planning and downstream marketing. Iluka is in discussions with potential offtake partners for the magnet rare earths suite, while also working on independent pricing mechanisms that reduce reliance on indices linked to Chinese domestic markets.
Regional impact
For the Mid West region, Eneabba consolidates Iluka’s presence and extends the life of mining activities that have underpinned local employment for decades. Construction is already driving demand for trades, engineering, transport and services, with regional businesses picking up work in earthworks, concrete, structural fabrication and camp operations. Over time, the refinery is expected to attract complementary investments in logistics, chemical supply and potentially magnet manufacturing.
In the near term, Iluka’s focus is on maintaining construction momentum, finalising offtake agreements that satisfy both commercial and government requirements and bedding down operational readiness. Commissioning in 2027 will mark the transition from project to operation, but the company’s broader ambition is longer term: to anchor a network of rare earth mines and concentrators supplying a strategically important processing hub on Australian soil.
If Eneabba delivers on its design and funding assumptions, it will not only transform Iluka’s portfolio but also shift Australia’s position in the global rare earths market — from exporter of mineral sands concentrates to producer of high-value, separated rare earth oxides that feed directly into the technologies of electrification, defence and advanced manufacturing.
