Arafura: Inside Australia's First Ore-to-Oxide Rare Earths Build

Arafura Rare Earths (ARU) is positioning itself as the third non-Chinese producer of separated neodymium-praseodymium (NdPr) oxide, behind Mountain Pass and Lynas. In a recent interview on Mining Network, the company's leadership laid out a tight construction story — one framed around an ore-to-oxide strategy the team argues is genuinely differentiated, and a fully-funded build the guest says should start within weeks.

## Why ore-to-oxide matters

Most rare earths projects stop short of the oxide step and ship concentrate, often to China for processing. Arafura, by contrast, has built a flowsheet that runs ore all the way through to separated oxide. The guest gave two reasons for that choice. First, the project is designed as a true alternative to Chinese processing capability. Second, going to oxide is the only way to fully strip out radionuclides (the small amounts of naturally-occurring radioactive elements that sit alongside rare earths in the ore) so the finished product can be sold into any jurisdiction without radiation concerns.

The trade-off, the guest acknowledged, is capital: ore-to-oxide requires substantially more funding than a concentrate-only project. He says that funding challenge is now behind the company after it announced a final investment decision (FID — the formal go-ahead that commits capital to construction).

## Cost position and by-products

On costs, the guest targets around $30/kg AISC (all-in sustaining cost — what it really costs to pull out a kilogram of finished product, including mining, processing and overhead) on NdPr, which he claims would put Arafura among the lowest-cost producers globally. The operation will also produce phosphoric acid as a by-product, providing a modest credit against costs. The host noted the AISC is actually lower than Chinese producers, which the guest said reflects the project's design choices and by-product credits.

## Scale and peer set

Phase one is sized at roughly 4,440 tonnes of NdPr oxide annually — the guest noted this is not that dissimilar to what Mountain Pass is currently producing. With Mountain Pass and Lynas already producing oxide outside China, Arafura would be the third, with USA Rare Earth's recently-acquired Cerro Verde project a possible future fourth. The guest emphasised that limited new oxide supply is coming in the next five to ten years, which underpins the supply-demand setup he is betting on.

## Funding and offtakes

The company says it is fully funded after FID and has signed three additional offtake agreements since March, two of which are linked to the Seabourne Index — an independent NdPr price index created in October of last year by Benchmark Mineral Intelligence. Index-linked offtakes matter because the dominant historical reference, the Asian Metals index, has been heavily influenced by Chinese domestic pricing. The US introduced a $110/kg floor price in support of Mountain Pass in April of last year, and Japan followed with similar support for a Lynas offtake running through 2038. Since then, NdPr has largely traded in a $100–$120/kg band, peaking at $129/kg, and was sitting at $107/kg at the time of the interview.

The guest argued that moving volumes onto the Seabourne Index — where Arafura has placed two offtakes — gives the market a transparent, non-Chinese benchmark and is the company's main structural defence against any future pricing manipulation.

## Construction and execution

The build timeline is just over three years to first production plus a two-year ramp-up, so investors are looking at a multi-year build before any revenue hits. The flowsheet has been under test work for more than 15 years, EPCM (engineering, procurement and construction management) is with Hatch, and the guest said design choices have been cross-checked against Lynas's ramp-up experience. The company carries roughly US$430 million in completion support — a mix of debt and a cost-overrun facility backed by equity — as a buffer against capex (capital expenditure — the upfront cost to build the mine and plant) and schedule slippage.

## Twelve-month milestones

The next twelve months are dense with catalysts. Investors should look for:

- Contractual close on debt in the next couple of months. - Financial close on debt by the back end of next calendar year — the trigger that lets the company start drawing debt, after equity is spent first. - 80% of offtakes fully locked in by financial close. - Construction starting this month. - Bulk earthworks contract released in the middle of next quarter. - Concrete works beginning around the middle of next year.

## Demand setup

The guest argued demand is structurally strong. Rare earths demand is expected to at least double over the next ten years — an additional 60,000 to 70,000 tonnes or more — driven primarily by EVs and, increasingly, humanoid robotics, which the guest noted uses roughly the same rare earths content per unit as an EV. He claimed few new oxide projects are moving into construction: Lynas and Mountain Pass are already producing, Cerro Verde has potential, and Lindian is moving toward production but still has to reach oxide. He framed Arafura as the only fully-funded, construction-ready oxide project of scale outside China.

## The bear case

On the risk that China floods the market to keep Western producers uneconomic, the guest made two arguments. First, China's incentive structure favours keeping its resource base for higher-value-added magnet production domestically — every dollar of rare earths unlocks roughly $1,000 of end-product value, so exporting cheap raw material is itself uneconomic. Second, even if China did flood, the cost to an EV OEM (original equipment manufacturer — the car company buying the material) of switching to non-permanent-magnet motors is far higher than a modest NdPr price premium. He framed it bluntly: a $46,000 EV versus a $50/kg price difference is not a trade any manufacturer would make. He also pointed to growing EU regulation on sourcing as a structural tailwind for ex-China supply.

## Valuation puzzle

The guest was candid about the share price. He said market cap is roughly A$1.2 billion — "just a bit above" the cash sitting on the balance sheet — against a planned 4,400-tonne oxide output, and noted Mountain Pass's market cap is roughly ten times higher. He attributed the disconnect to a broader pullback across the rare earths sector and the perceived execution risk of the build phase. Re-rating, in his view, comes from delivery — staying on schedule and on budget — rather than narrative.

## What to watch

The setup is execution-driven. The cushions the guest pointed to are the company's $30/kg cost target, US$430 million in completion support, locked-in index-linked offtakes, and a 15-year-tested flowsheet with Hatch on board. The risks are the same things that have weighed on the share price — a three-year build with debt drawdowns before first revenue, the remote Australian location, and the sector-level sentiment that has dragged all rare earth names lower.