Europe’s rare earth development strategy is increasingly anchored in southern Norway, where the Fen Carbonatite Complex in Telemark has emerged as the continent’s most significant rare earth asset following a major resource upgrade by Rare Earths Norway AS in March 2026.
The project, located near Ulefoss in Nome municipality, remains pre-production and requires an operating permit, financing arrangements, technical de-risking and a defined processing pathway before mining can begin. However, it has already become a reference point for European rare earth supply planning due to its scale and defined neodymium-praseodymium (NdPr) output target.
Resource expansion at Fen Carbonatite Complex
A JORC-compliant resource estimate prepared by WSP reported 15.9mn tonnes of total rare earth oxides (TREO), nearly doubling the prior 2024 estimate of 8.8mn tonnes. The revised figure represents an increase of approximately 80–81% within two years.
The resource comprises 14.2mn tonnes inferred and 1.7mn tonnes indicated. In ore terms, Rare Earths Norway reported 1,083mn tonnes at 1.31% TREO inferred and 123mn tonnes at 1.35% TREO indicated. The Fen deposit therefore exceeds Sweden’s Per Geijer rare earth project operated by LKAB, which had previously been among Europe’s most prominent rare earth discoveries.
NdPr content and strategic mineral composition
Within the indicated resource, approximately 19% of rare earth oxides are neodymium and praseodymium (NdPr), the primary materials used in permanent magnets for electric vehicles, wind turbines, robotics, electronics, heat pumps, industrial motors and defence systems.
The project also includes significant volumes of heavy rare earth elements (HREEs), which increased from around 0.1mn tonnes to 0.3mn tonnes in the updated estimate. These materials, including dysprosium and terbium, are essential for high-temperature magnet performance and are considered more geopolitically constrained than light rare earths.
Project development timeline and production outlook
Rare Earths Norway, led by chief executive Alf Reistad, is targeting first production in late 2031, with output of approximately 800 tonnes per year of NdPr by 2032. This volume represents around 5% of projected EU demand for NdPr materials.
Although modest in global terms, the planned output is significant within Europe, which currently has no operating rare earth mines and relies heavily on imports for permanent magnet supply chains. The Fen deposit remains subject to permitting requirements, including an operating permit in addition to its existing extraction authorization.
Norwegian state intervention and planning authority
In April 2026, Norway’s government assumed responsibility for planning processes at Fen to accelerate development and address potential land-use conflicts. Prime Minister Jonas Gahr Støre stated the project could be important for Telemark, Norway and European supply security.
The intervention reflects Fen’s classification as a strategic mineral project within Norway’s broader policy framework, despite the country’s environmental, agricultural and local governance constraints.
Underground mining concept and environmental design
Rare Earths Norway is developing an “Invisible Mine” concept for Fen, based on underground extraction, electric and autonomous operations, and partial backfilling of tailings.
The design includes vertical shaft mining, underground crushing systems, conveyor transport over several kilometres, and reinjection of at least 60% of waste material underground. The approach is intended to reduce surface disruption, dust emissions and visible environmental impact. The project still requires detailed engineering validation, including geotechnical modelling, waste handling design, hydrology assessments and closure planning.
Processing requirements and downstream integration
Fen’s carbonatite geology is considered potentially favourable for extraction due to carbonate-hosted mineral characteristics, but the project remains dependent on downstream processing solutions. Key processing steps include mineral liberation, concentration, cracking, leaching, separation, impurity management, thorium handling, waste treatment and conversion into magnet-grade products. The project’s commercial viability depends on whether output is directed toward European separation facilities, allied processing systems or integrated Nordic-European rare earth value chains.
European midstream and magnet supply linkages
Potential downstream integration includes Solvay’s La Rochelle facility in France, which is developing rare earth separation capacity including dysprosium and terbium processing.
In Estonia, Neo Performance Materials is advancing rare earth magnet production at Narva, targeting initial output of 2,000 tonnes per year of sintered magnets, with potential expansion to 5,000 tonnes per year. These facilities represent potential endpoints for Fen-derived material, depending on how supply chains are structured following mining development.
Niobium and thorium by-product streams
Fen contains niobium and thorium alongside rare earth elements. Thorium is being positioned as a potential revenue stream rather than a waste liability.
Rare Earths Norway has signed letters of intent with Thor Medical in Norway and Copenhagen Atomics in Denmark for the full projected thorium output. Thor Medical is linked to radiopharmaceutical applications, while Copenhagen Atomics is developing thorium-based molten salt reactor technology. These by-product arrangements remain at early-stage contractual alignment rather than binding production agreements.
Competing resources within the Fen district
Saga Rare Earths has reported a separate inferred resource within the Fen field of 95mn tonnes at 1.28% TREO, equivalent to approximately 1.2mn tonnes of rare earth oxides, based on 10,447 metres of diamond drilling under its exploitation licence.
While smaller in certain classifications than Rare Earths Norway’s updated estimate, the data indicates that Fen represents a broader rare earth district with multiple licensed operators.
Permitting, financing and development constraints
Fen holds an extraction permit but still requires an operating permit prior to mining commencement. The distinction reflects broader European mining regulatory frameworks, where environmental compliance, infrastructure planning, waste management and social licensing are required before production approval.
The project is also exposed to higher Western cost structures, including environmental compliance obligations, labour costs, energy pricing and capital intensity, compared with major rare earth supply regions.
Policy frameworks and demand alignment
The EU Critical Raw Materials Act establishes 2030 targets for domestic extraction, processing and recycling, although Fen’s production timeline extends to 2031–2032, beyond these benchmarks.
The G7 critical minerals framework aims to reduce dependency on non-G7 suppliers to below 60% by 2030 and 50% thereafter, supporting demand-side policy alignment for projects such as Fen.
The EU Raw Materials Mechanism is also intended to aggregate buyer demand across industrial sectors, although final offtake agreements remain commercially negotiated between parties.
Environmental and social considerations in Telemark
Environmental concerns include biodiversity sensitivities and land-use impacts near planned infrastructure zones in Telemark. The project has encountered scrutiny related to ecological protection and community impact. Norway’s regulatory system requires detailed environmental documentation, including water management, tailings handling, radioactive material control, and long-term closure planning before operating approval can be granted.
Thorium, pricing pressure and global competition
Rare Earths Norway has acknowledged the need for cost competitiveness against lower-cost Chinese rare earth production, which dominates global supply chains for processed materials and permanent magnets. China’s position in separation and magnet manufacturing continues to define global pricing and supply dynamics, creating structural cost challenges for Western projects such as Fen.
Financing requirements are expected to involve a combination of private capital, Norwegian institutional support, EU-aligned funding mechanisms, offtake commitments and potential strategic procurement instruments.
Long-term European supply implications
Fen’s scheduled late-2031 production timeline places it outside the EU Critical Raw Materials Act’s 2030 milestones, but it remains central to Europe’s longer-term rare earth supply strategy. The project’s scale, NdPr concentration and heavy rare earth content position it as a key test case for Europe’s ability to develop domestic mineral resources into fully integrated supply chains, spanning extraction, processing and magnet production capacity.
