Iluka lands first rare earths offtake as Eneabba hits halfway

About Iluka Resources Limited

Iluka Resources Limited (ASX: ILU) is an Australian minerals company with a heritage spanning more than three decades in mineral sands, producing zircon and titanium feedstocks from operations in Western Australia and South Australia. The company is headquartered in Perth and is pivoting toward becoming a globally significant producer of separated rare earth oxides through the development of the Eneabba rare earths refinery. Once commissioned, Eneabba will be Australia’s first fully integrated rare earths refinery and one of the very few facilities outside China capable of producing both light and heavy separated rare earth oxides. Iluka secured a $1.65 billion non-recourse loan from the Australian Government under the Critical Minerals Facility administered by Export Finance Australia, underpinning the project alongside Iluka’s own equity contribution. The refinery is being constructed at the company’s Eneabba site, located roughly 140 kilometres south of Geraldton in Western Australia.

The offtake agreement

The agreement covers the four magnet rare earth oxides of greatest strategic importance: neodymium (Nd), praseodymium (Pr), dysprosium (Dy) and terbium (Tb). Together, these elements account for more than 80% of the rare earth value in Iluka’s Eneabba monazite stockpile and are critical inputs in the high-performance permanent magnets used in electric vehicle motors, wind turbines and defence applications. The fact that the agreement encompasses both light magnet rare earths neodymium and praseodymium and the considerably scarcer heavy magnet rare earths dysprosium and terbium is notable. Very few facilities outside China are capable of producing the full suite, which has historically limited buyers’ ability to source a complete magnet rare earth package from a single non-Chinese supplier.

The pricing structure is designed to protect both parties. By applying the higher of a floor price and a market-linked price, the agreement insulates Iluka against downside price volatility while allowing the customer to benefit should market rates remain firm. The take-or-pay volumes account for 90% of the agreed material, providing Iluka with a firm revenue floor. The identity of the customer and the specific pricing mechanism are commercial in confidence.

The Eneabba refinery

The Eneabba refinery has been developed in three phases. Phase 1, a screening plant, became operational in 2020, and Phase 2, a concentrator producing approximately 90% monazite concentrate for direct refinery feed, was completed in June 2022. Phase 3, the refinery itself, was approved by Iluka’s board in April 2022 at an initial estimated capital cost of around $1.2 billion. Following the completion of front-end engineering design, the cost estimate was revised to between $1.7 billion and $1.8 billion in late 2023, reflecting the complexity of what is a first-of-kind facility. In December 2024, Iluka and the Australian Government resolved the resulting funding gap, with the government increasing its loan facility to $1.65 billion and both parties establishing a $150 million cost-overrun facility on a 50/50 basis.

The refinery, being built by EPCM contractor Fluor Australia with structural fabrication by Monadelphous, has now passed the 50% completion milestone. Piling activities have been completed, concrete placement rates have been ramping up, and major equipment deliveries and selective installation packages are underway. Commissioning is scheduled for 2027, with offtake volumes commencing in 2028 to align with the ramp-up timeline. Once fully operational, the refinery is designed to produce approximately 3,500 tonnes of neodymium-praseodymium oxide and 170 tonnes of dysprosium-terbium oxide per year using the Eneabba stockpile alone, rising to 5,500 tonnes of NdPr and 750 tonnes of DyTb using additional feedstocks.

Strategic significance

The announcement is significant for several reasons beyond the commercial terms. Iluka’s Managing Director, Tom O’Leary, described it as a particularly important milestone and noted that the customer is a globally recognised automotive company in a likeminded nation, diplomatic language that suggests the buyer is aligned with Australia and its partners in seeking to diversify rare earth supply chains away from China-controlled sources. The agreement also demonstrates that, with commissioning still a year away, a credible end-use customer has already committed to Eneabba’s product, providing an important validation of Iluka’s position as a vertically integrated, sovereign supplier.

The agreement is structured around commercially negotiated minimum prices that are independent of government-backed floor prices, which O’Leary noted was a meaningful distinction, reflecting genuine market confidence in the product and the supplier. Discussions with other prospective customers are described as ongoing.

Conclusion

The offtake announcement marks Iluka’s transition from a construction-stage rare earths developer to a company with a committed revenue base for its Eneabba refinery before a single tonne of separated oxide has been produced. With the refinery past the halfway mark and a four-year take-or-pay contract anchoring a minimum of US$155 million in revenue, the near-term trajectory will continue to depend on the pace of construction, the 2027 commissioning outcome and the broader trajectory of magnet rare earth prices as global demand for electric vehicles and renewable energy technologies accelerates.