Iluka (ASX:ILU) locks in VHM feedstock and Eneabba’s supply story finally has two legs

An 18-year concentrate deal plus a A$40m convertible note quietly reshapes how the refinery gets fed

Iluka Resources (ASX:ILU) has signed an 18-year concentrate supply deal with VHM Limited that covers all planned rare earth output from the Goschen project in western Victoria. The volumes are 146,000 tonnes of concentrate, containing 86,000 tonnes of rare earth oxides, running at roughly 4,900tpa of oxide equivalent once VHM is producing.

That is not a headline-grabbing number on its own. But it is the second piece of a puzzle the market has been asking Iluka to solve for two years, namely who feeds the Eneabba refinery and who buys the output.

Late last year Iluka answered the demand side with its first binding offtake to a global automaker at floor prices that ignored government backstops. Today it starts answering the supply side. Goschen sits alongside Lindian’s Kangankunde in Malawi as external feedstock, giving the refinery a genuinely diversified concentrate book heading into the mid-2027 commissioning window.

The market has treated Eneabba as a capex story. It is quietly becoming a supply chain.

The A$40m convertible note is doing the heavy lifting here

The offtake alone would be interesting. The financing structure attached to it is more revealing. Iluka is providing VHM with a A$40 million secured convertible note in two tranches, A$10 million upfront and A$30 million post-FID, at 10% interest and secured by a mining mortgage.

This is the second time Iluka has effectively become a financier to its own suppliers. It loaned Lindian US$20 million to help fund Kangankunde. The pattern tells you something important about how Western rare earth supply chains actually get built.

Junior developers cannot get bank finance without offtakes. Refiners cannot commission without feedstock. Iluka is bridging both problems by writing cheques its suppliers can turn into mines. The step-in rights and right of first refusal over VHM’s Nowie and Cannie projects mean Iluka is quietly buying optionality across an entire province.

Pricing linked to Iluka’s realised selling price is the clever bit

The concentrate price is set as a percentage payability of contained oxides, and it moves with Iluka’s own realised selling prices from Eneabba. That is a meaningfully different arrangement from a fixed-price offtake.

It means VHM shares in any upside if Iluka’s automaker contracts price higher than the floor. It also means VHM shares in the downside if the market softens. The take-or-pay obligation can be temporarily suspended if Iluka’s weighted average realised price falls below a prescribed level for two consecutive quarters.

We think this is the more interesting structural detail. Iluka has essentially imported its own price risk into its supplier contracts, which is exactly how a vertically integrated processor should behave. It also makes VHM’s economics more sensitive to Eneabba’s downstream contract book, not less.

What this does to the Eneabba investment case

Eneabba is more than 50% complete with commissioning targeted for mid-2027. The A$1.7 billion capex bill has been the loudest criticism of the project. The quieter question was always whether the refinery would actually have enough non-Chinese concentrate to run at capacity.

Today’s deal, combined with the existing Lindian arrangement and Iluka’s own Wimmera project in late-stage DFS, means there are now three distinct feed sources being lined up for the same refinery. That reduces single-point-of-failure risk on the supply side materially.

The catch is that Goschen still needs to reach FID, get fully funded and hit commercial production before the take-or-pay obligations kick in. VHM has environmental approvals and letters of funding interest from both Australian and US governments, which helps. But this is still an offtake from a project that has not yet been built.

The Investors Takeaway for Iluka Resources

Iluka is no longer just a mineral sands company building a refinery. It is now underwriting junior rare earth developers, structuring offtakes that share commodity risk, and quietly consolidating the western Victorian and Malawian supply chains under a single processing hub.

That is a genuinely different business model to what investors bought two years ago. Our previous coverage of the Eneabba story is at stocksdownunder, and the direction of travel is now clearer than it was even six months ago.

The next tests are whether VHM actually reaches FID on Goschen, whether Lindian delivers first concentrate on schedule, and whether Iluka can sign a second automaker offtake to fill the 90% of Eneabba capacity still uncommitted. Get two of those three and the re-rate case writes itself.