Researchers at Uppsala University, led by materials chemistry professor Martin Sahlberg, have set out to inventory every element present in Swedish mineral deposits rather than mine for one target metal and discard the rest, then design permanent magnets around the mix that is actually there.1 ScienceDaily 2026-07-24 Uppsala University professor Martin Sahlberg leads work to inventory every element in Swedish deposits at Kiruna, Bergslagen and Norra Kaerr and design magnets around that mix, described as application inspired basic research expected to continue for many years. Open source The named deposits are Kiruna in the north, the Bergslagen district, and Norra Kaerr in the south, and the team combines theoretical physicists, geologists and materials engineers.2 SciTechDaily 2026-07-23 A team of theoretical physicists, geologists and materials engineers aims to map the full chemical composition of Swedish deposits; Kiruna is cited as Europe's largest known rare earth deposit with over 1.3 million tonnes of rare earth oxides, with the goal of reducing purification steps. Open source The stake is Europe's dependence on a single supplier: China accounted for 91% of refined rare earth output and 94% of magnet manufacturing in 2024.5 IEA 2026-01-01 In 2024 China accounted for 60% of mined magnet rare earth production, 91% of refined output and 94% of magnet manufacturing, and the IEA identifies magnet production, particularly metallisation, as the main bottleneck for supply diversification. Open source We assess with moderate confidence that this work, if it succeeds, shifts a real constraint but not the binding one, because the reported bottleneck is refining and magnet making rather than the location of ore.5 IEA 2026-01-01 In 2024 China accounted for 60% of mined magnet rare earth production, 91% of refined output and 94% of magnet manufacturing, and the IEA identifies magnet production, particularly metallisation, as the main bottleneck for supply diversification. Open source The Swedish geology is described by the researchers themselves as application inspired basic research expected to continue for many years.1 ScienceDaily 2026-07-24 Uppsala University professor Martin Sahlberg leads work to inventory every element in Swedish deposits at Kiruna, Bergslagen and Norra Kaerr and design magnets around that mix, described as application inspired basic research expected to continue for many years. Open source

Resource is not reserve, and the distinction is the whole story

The tonnage most often attached to Sweden comes from LKAB's Per Geijer deposit near Kiruna. LKAB states mineral resources of rare earth metals exceeding one million tonnes of oxides, and the company is explicit that this is a mineral resource, not a mineral reserve, because the technical and economic analysis that would demonstrate profitable extraction has not been completed.3 LKAB 2023-01-12 LKAB reports mineral resources exceeding one million tonnes of rare earth oxides at Per Geijer, explicitly a mineral resource and not a reserve pending technical and economic analysis, and says it will be at least 10 to 15 years before mining and market deliveries begin. Open source Reclassification to reserve happens only after that analysis. Secondary coverage of the Uppsala work cites a figure above 1.3 million tonnes of rare earth oxides at Kiruna.2 SciTechDaily 2026-07-23 A team of theoretical physicists, geologists and materials engineers aims to map the full chemical composition of Swedish deposits; Kiruna is cited as Europe's largest known rare earth deposit with over 1.3 million tonnes of rare earth oxides, with the goal of reducing purification steps. Open source Readers should treat both numbers as resource estimates. Nothing in the sourcing establishes that any of it is economically mineable today.

LKAB attached its own timeline to that caveat: at least 10 to 15 years before mining can begin and raw materials reach the market, given normal mining permit processes.3 LKAB 2023-01-12 LKAB reports mineral resources exceeding one million tonnes of rare earth oxides at Per Geijer, explicitly a mineral resource and not a reserve pending technical and economic analysis, and says it will be at least 10 to 15 years before mining and market deliveries begin. Open source That statement was made in January 2023, which places the earliest plausible deliveries in the mid to late 2030s on the company's own arithmetic.3 LKAB 2023-01-12 LKAB reports mineral resources exceeding one million tonnes of rare earth oxides at Per Geijer, explicitly a mineral resource and not a reserve pending technical and economic analysis, and says it will be at least 10 to 15 years before mining and market deliveries begin. Open source The second Swedish asset moved more recently: on 30 June 2026 the Swedish government granted a 25 year mining lease at Norra Kaerr to Greenna Mineral AB, a subsidiary of Leading Edge Materials, for a deposit rich in the heavy rare earths terbium, dysprosium and yttrium.4 IOM3 2026-07-01 Sweden granted a 25 year mining lease at Norra Kaerr on 30 June 2026 to Greenna Mineral AB, a subsidiary of Leading Edge Materials, for a deposit rich in terbium, dysprosium and yttrium, with an updated pre feasibility study pending and environmental permitting following the concession. Open source Even there the sequence is unfinished: an updated pre feasibility study is still to come, and environmental permitting follows the concession rather than preceding it.4 IOM3 2026-07-01 Sweden granted a 25 year mining lease at Norra Kaerr on 30 June 2026 to Greenna Mineral AB, a subsidiary of Leading Edge Materials, for a deposit rich in terbium, dysprosium and yttrium, with an updated pre feasibility study pending and environmental permitting following the concession. Open source No tonnage or grade figures accompany the lease in that reporting, which is itself a signal about how early the project is.4 IOM3 2026-07-01 Sweden granted a 25 year mining lease at Norra Kaerr on 30 June 2026 to Greenna Mineral AB, a subsidiary of Leading Edge Materials, for a deposit rich in terbium, dysprosium and yttrium, with an updated pre feasibility study pending and environmental permitting following the concession. Open source

Why the science is pointed at the right target anyway

The Uppsala framing is worth taking seriously on its own terms. Sahlberg describes the goal as taking stock of what is in the deposit so that all of the elements can be used efficiently, and building new magnet formulations from that starting point instead of forcing local ore to fit an existing recipe.2 SciTechDaily 2026-07-23 A team of theoretical physicists, geologists and materials engineers aims to map the full chemical composition of Swedish deposits; Kiruna is cited as Europe's largest known rare earth deposit with over 1.3 million tonnes of rare earth oxides, with the goal of reducing purification steps. Open source The claimed payoff is fewer purification steps and a lower environmental footprint across refining and manufacturing.2 SciTechDaily 2026-07-23 A team of theoretical physicists, geologists and materials engineers aims to map the full chemical composition of Swedish deposits; Kiruna is cited as Europe's largest known rare earth deposit with over 1.3 million tonnes of rare earth oxides, with the goal of reducing purification steps. Open source We assess with moderate confidence that this is the correct place to apply chemistry effort, because separation of individual rare earth elements from a mixed feed is precisely the stage where Chinese capacity is dominant and where a European entrant would otherwise have to replicate decades of process engineering.5 IEA 2026-01-01 In 2024 China accounted for 60% of mined magnet rare earth production, 91% of refined output and 94% of magnet manufacturing, and the IEA identifies magnet production, particularly metallisation, as the main bottleneck for supply diversification. Open source A magnet designed to tolerate a mixed rare earth feed changes the economics of building separation capacity, since less separation is required.

The limit is that the IEA locates the main constraint one step further downstream still, at magnet production and specifically at metallisation, the conversion of refined oxides into metallic alloys or powders.5 IEA 2026-01-01 In 2024 China accounted for 60% of mined magnet rare earth production, 91% of refined output and 94% of magnet manufacturing, and the IEA identifies magnet production, particularly metallisation, as the main bottleneck for supply diversification. Open source Mining capacity is expanding outside China; refining and magnet making are what lag.5 IEA 2026-01-01 In 2024 China accounted for 60% of mined magnet rare earth production, 91% of refined output and 94% of magnet manufacturing, and the IEA identifies magnet production, particularly metallisation, as the main bottleneck for supply diversification. Open source A new alloy chemistry does not by itself build a metallisation plant.

Second order effects and the ledger

Who gains. LKAB gains optionality: rare earths at Per Geijer sit alongside an existing iron ore operation, so a magnet chemistry tuned to that specific feed improves the value of material the company would be handling regardless.3 LKAB 2023-01-12 LKAB reports mineral resources exceeding one million tonnes of rare earth oxides at Per Geijer, explicitly a mineral resource and not a reserve pending technical and economic analysis, and says it will be at least 10 to 15 years before mining and market deliveries begin. Open source Leading Edge Materials and its Greenna subsidiary gain the most in narrative terms, because Norra Kaerr is weighted toward the heavy rare earths that are hardest to source and now holds a 25 year lease.4 IOM3 2026-07-01 Sweden granted a 25 year mining lease at Norra Kaerr on 30 June 2026 to Greenna Mineral AB, a subsidiary of Leading Edge Materials, for a deposit rich in terbium, dysprosium and yttrium, with an updated pre feasibility study pending and environmental permitting following the concession. Open source European magnet fabricators and the automotive and wind supply chains behind them gain a second potential feedstock path, which is leverage in contract talks even before a tonne ships. Swedish and EU research funders gain a domestic anchor for a strategic capability.

Who loses, and how quickly. Chinese refiners and magnet makers hold 91% and 94% shares respectively, so any European substitution comes out of that position, but the loss on a decade horizon is marginal given the 10 to 15 year permitting arithmetic LKAB itself published.5 IEA 2026-01-01 In 2024 China accounted for 60% of mined magnet rare earth production, 91% of refined output and 94% of magnet manufacturing, and the IEA identifies magnet production, particularly metallisation, as the main bottleneck for supply diversification. Open source 3 LKAB 2023-01-12 LKAB reports mineral resources exceeding one million tonnes of rare earth oxides at Per Geijer, explicitly a mineral resource and not a reserve pending technical and economic analysis, and says it will be at least 10 to 15 years before mining and market deliveries begin. Open source The more immediate losers are local: Norra Kaerr sits in southern Sweden and the environmental permitting stage has not been fought yet, so the burden of any project lands on the communities and water systems around the site before any magnet exists.4 IOM3 2026-07-01 Sweden granted a 25 year mining lease at Norra Kaerr on 30 June 2026 to Greenna Mineral AB, a subsidiary of Leading Edge Materials, for a deposit rich in terbium, dysprosium and yttrium, with an updated pre feasibility study pending and environmental permitting following the concession. Open source Incumbent producers of conventional neodymium iron boron magnets would also face redesign costs if a different alloy family became standard, since qualification cycles in automotive and defence are long.

The counter-case

The strongest argument against reading this as meaningful progress is that it is a research programme, not a supply chain. The sourcing describes basic research expected to continue for many years, with no published tonnage, grade or process yield attached to the Uppsala work in the coverage available.1 ScienceDaily 2026-07-24 Uppsala University professor Martin Sahlberg leads work to inventory every element in Swedish deposits at Kiruna, Bergslagen and Norra Kaerr and design magnets around that mix, described as application inspired basic research expected to continue for many years. Open source Every hard number in this brief comes from company statements about resources, not from the study.3 LKAB 2023-01-12 LKAB reports mineral resources exceeding one million tonnes of rare earth oxides at Per Geijer, explicitly a mineral resource and not a reserve pending technical and economic analysis, and says it will be at least 10 to 15 years before mining and market deliveries begin. Open source 4 IOM3 2026-07-01 Sweden granted a 25 year mining lease at Norra Kaerr on 30 June 2026 to Greenna Mineral AB, a subsidiary of Leading Edge Materials, for a deposit rich in terbium, dysprosium and yttrium, with an updated pre feasibility study pending and environmental permitting following the concession. Open source For the thesis that Sweden becomes a real magnet rare earth source to fail, only one thing has to be true: permitting and refining capacity move slower than the chemistry. That is the historical base rate. The opposite case, that this matters sooner than expected, requires a magnet formulation to reach industrial qualification while a separation and metallisation plant is built in parallel, and the IEA's framing suggests the latter is the harder of the two.5 IEA 2026-01-01 In 2024 China accounted for 60% of mined magnet rare earth production, 91% of refined output and 94% of magnet manufacturing, and the IEA identifies magnet production, particularly metallisation, as the main bottleneck for supply diversification. Open source We hold low confidence in any Swedish magnet rare earth volume reaching European buyers before the 2030s.

What to watch

  • A resource becomes a reserve. If LKAB reclassifies any part of Per Geijer from mineral resource to mineral reserve, the economics have been demonstrated rather than asserted; continued resource only language past 2027 means the project is still geological, not commercial.3 LKAB 2023-01-12 LKAB reports mineral resources exceeding one million tonnes of rare earth oxides at Per Geijer, explicitly a mineral resource and not a reserve pending technical and economic analysis, and says it will be at least 10 to 15 years before mining and market deliveries begin. Open source
  • Norra Kaerr clears environmental permitting. The 25 year lease is granted but permitting follows; watch whether the updated pre feasibility study lands and an environmental permit is filed within roughly 12 to 24 months, or whether the project stalls at that stage.4 IOM3 2026-07-01 Sweden granted a 25 year mining lease at Norra Kaerr on 30 June 2026 to Greenna Mineral AB, a subsidiary of Leading Edge Materials, for a deposit rich in terbium, dysprosium and yttrium, with an updated pre feasibility study pending and environmental permitting following the concession. Open source
  • A published magnet composition. The Uppsala claim becomes testable the moment the team publishes an alloy formulation with measured magnetic properties tied to a named Swedish feed; absence of such a paper within two to three years would indicate the inventory stage is still running.1 ScienceDaily 2026-07-24 Uppsala University professor Martin Sahlberg leads work to inventory every element in Swedish deposits at Kiruna, Bergslagen and Norra Kaerr and design magnets around that mix, described as application inspired basic research expected to continue for many years. Open source
  • Separation and metallisation capacity, not mines. Track announcements of European refining and metallisation plants rather than mining leases, since the IEA names magnet production and metallisation as the constraint; new mines without new metallisation change the dependency very little.5 IEA 2026-01-01 In 2024 China accounted for 60% of mined magnet rare earth production, 91% of refined output and 94% of magnet manufacturing, and the IEA identifies magnet production, particularly metallisation, as the main bottleneck for supply diversification. Open source
  • China's refining share moves. If the 91% refined share and 94% magnet share fall by even a few points over the next several years, diversification is real; flat shares mean the announcements have not become tonnes.5 IEA 2026-01-01 In 2024 China accounted for 60% of mined magnet rare earth production, 91% of refined output and 94% of magnet manufacturing, and the IEA identifies magnet production, particularly metallisation, as the main bottleneck for supply diversification. Open source

The useful question for the next few years is not whether Sweden has rare earths. It has them, in resource categories, with a decade of permitting in front. The question is whether anyone in Europe builds the separation and metallisation steps that would make Swedish rock into a European magnet, because until that exists the geology is a claim on the future rather than a supply.