The critical-minerals investment race is increasingly moving downstream as Western countries recognise that controlling a mineral deposit does not guarantee control of the supply chain. For rare earths, in particular, mining is only the beginning of a complex industrial process that includes separation, refining, alloy production and manufacturing of materials required by end users.
Europe Builds Rare-Earth Processing Capacity
France’s Carester is developing the Caremag plant at Lacq, which is designed to process approximately 2,000 tonnes a year of recycled permanent magnets and around 5,000 tonnes a year of mineral concentrates. The planned facility is expected to produce about 800 tonnes a year of NdPr oxide, 500 tonnes of dysprosium oxide and 100 tonnes of terbium oxide.
In Germany, Mkango Resources’ Remloy operation in Bitterfeld is targeting at least 500 tonnes a year of NdFeB alloy powder from recycled permanent magnets. Mkango’s €8 million acquisition also included approximately 345 tonnes of magnet, alloy and other feedstock inventory. These projects address a supply-chain vulnerability that is different from the risks associated with mining. Processing facilities are positioned closer to industrial customers and can produce materials that must meet precise specifications before entering automotive, defence and electronics supply chains. That makes technically capable refining and processing assets strategically important even when their physical scale is relatively modest.
Recycling Adds Flexibility to Rare-Earth Supply
Recycling creates another potential advantage. Permanent magnets can be processed through several recycling routes depending on the feedstock and required end product. A short-loop process seeks to preserve as much existing magnet material as possible. A medium-loop approach remelts material into new alloy, while long-loop recycling chemically separates magnets into individual rare-earth compounds.
The economic objective is to select the shortest suitable route based on the available feedstock and the specifications required by the customer. That can give downstream processors greater flexibility in sourcing material. Unlike a mining operation that is generally tied to a particular deposit, a refinery or processing facility can potentially receive feedstock from multiple mines and recycling sources.
Downstream Assets Face Different Risks
The investment risks also change further down the supply chain. Instead of geological uncertainty and mining-related risks, downstream projects must manage feedstock availability, commissioning, utilisation rates and customer qualification. A technically successful refinery still needs sufficient material to operate efficiently and customers capable of accepting its products. The strategic importance of downstream capacity is becoming increasingly clear.
Western countries can possess substantial critical-mineral resources and still remain dependent on external suppliers if concentrates or intermediate products must be shipped elsewhere for separation, refining or alloy production. That is creating a growing investment premium for facilities capable of converting raw materials into products that manufacturers can actually purchase and use.
For critical minerals, the most strategically valuable asset may therefore not be the largest deposit. It could be the processing facility that provides the shortest reliable route from feedstock to a qualified industrial customer.
