District Metals has identified additional uranium, molybdenum, cobalt and copper mineralisation at its Sågtjärn project in Sweden, extending exploration targets beyond historically investigated areas and highlighting the property’s potential as a polymetallic exploration asset.
Reconnaissance mapping and geochemical sampling identified uranium-bearing formations across approximately two kilometres, with selected rock samples returning grades of up to 3,656 parts per million uranium oxide (U₃O₈).
The exploration results also revealed molybdenum concentrations of up to 5,250 ppm, alongside individual samples containing 333 ppm cobalt and 1,800 ppm copper. The findings point to a mineralised system containing several metals of strategic importance, potentially expanding the project’s significance within District Metals’ Swedish exploration portfolio. The results come as Sweden reopens its uranium mining sector following years of regulatory restrictions, creating renewed opportunities for companies exploring domestic uranium resources.
Uranium Mineralisation Extends Beyond Historical Exploration Areas
The latest exploration programme covered District Metals’ wholly owned Sågtjärn property in Jämtland and Västernorrland counties, building on airborne radiometric and magnetic surveys completed in 2025.
Geological teams investigated 163 field stations and collected 32 rock samples from surface outcrops and mineralised boulders. The work focused on examining geophysical anomalies and determining whether previously identified mineralisation continues beyond historically explored areas.
Uranium mineralisation was identified in pegmatite and granite intrusions, as well as surrounding metamorphic gneiss formations. Uranium-bearing pegmatites were traced over approximately two kilometres of strike, extending both northwest and southeast of areas previously investigated by the Geological Survey of Sweden.
Selected samples from these pegmatites returned concentrations of up to 1,179 ppm U₃O₈, while mineralised gneiss boulders produced significantly higher results, reaching 3,656 ppm U₃O₈. Additional uranium-bearing boulders were discovered approximately 1–1.5 kilometres southeast of historical drilling locations around the Hammarmyran and Staverberget occurrences.
These discoveries provide additional exploration targets and indicate that earlier geological investigations may have covered only part of the wider mineralised system.
The reported grades are based primarily on selected surface samples rather than new drilling. High uranium concentrations in individual rock samples and boulders do not establish the thickness, continuity or economic potential of mineralisation beneath the surface. Further geological work and drilling will be necessary to determine whether the newly identified zones represent extensions of known occurrences or separate mineralised structures.
Historical Uranium Resource Provides Exploration Foundation
The Sågtjärn uranium occurrence was originally discovered in 1974 during geochemical investigations by the Geological Survey of Sweden. Subsequent work included systematic sampling, geophysical surveys and diamond drilling during the late 1970s. Historical assessments outlined a resource of approximately 756,000 tonnes grading 0.068% U₃O₈, equivalent to around 1.14 million pounds of uranium oxide.
District Metals classifies this estimate as historical rather than a current mineral resource compliant with Canada’s NI 43-101 disclosure requirements.
Before incorporating the historical material into a modern resource estimate, the company will need to verify the underlying geological information through additional exploration, including drilling alongside previous boreholes. The newly identified mineralisation could provide an opportunity to expand the historical project’s geological footprint. Nevertheless, the existing estimate remains relatively modest compared with the scale of major uranium development projects.
Establishing a commercially meaningful deposit would require demonstrating additional mineralised volumes, consistent grades and technically viable extraction methods. The associated molybdenum, cobalt and copper mineralisation adds another dimension to the exploration programme. Their potential economic contribution remains unestablished and will depend on future resource definition, metallurgical testing, recovery rates and processing costs.
Sweden’s Uranium Mining Ban Reversal Creates New Opportunities
The exploration results coincide with a major change in Sweden’s regulatory framework for uranium mining. Sweden lifted its uranium extraction, reversing restrictions introduced in 2018 and allowing companies to pursue uranium exploration and mining applications under the country’s mineral legislation.
Additional legislative changes adopted in June addressed the regulatory treatment of uranium extraction and processing, establishing a clearer framework for evaluating potential projects.
The policy reversal has renewed interest in Sweden’s uranium resources as European governments seek to strengthen nuclear fuel security and reduce vulnerabilities across critical-mineral supply chains. Sweden already operates a substantial nuclear electricity sector, but its domestic uranium deposits remain undeveloped. The reopening of the mining industry could attract additional exploration investment and create opportunities to establish new uranium resources within the European Union. Domestic mining alone would not eliminate reliance on international uranium conversion, enrichment and nuclear fuel fabrication services.
Environmental regulation will also remain a major consideration for prospective developments. Uranium mining requires detailed assessments of groundwater protection, radioactive materials, waste management, mine rehabilitation and potential impacts on surrounding communities. Even under the revised regulatory framework, discoveries must progress through geological evaluation, environmental assessments and permitting procedures before commercial production becomes possible.
Sågtjärn Strengthens District Metals’ Swedish Exploration Portfolio
Sågtjärn forms part of District Metals’ broader uranium and polymetallic exploration strategy in Sweden, alongside its substantially larger Viken project.
Viken is the company’s flagship development asset. Its preliminary economic assessment, published in July 2026, outlined the potential for a large-scale uranium and critical-metals operation, with estimated initial capital expenditure of approximately $876 million.
Although Sågtjärn remains at a much earlier exploration stage, its geological characteristics offer a different potential development opportunity. Unlike Viken’s extensive alum-shale mineralisation, Sågtjärn contains uranium associated with pegmatites, granites and metamorphic gneiss. These geological settings could require different mining methods and mineral-processing approaches.
The next exploration phase is expected to focus on combining geochemical findings with the 2025 airborne survey results, prioritising drilling locations and testing whether surface discoveries correspond to continuous mineralisation within the underlying bedrock.
Further investigations will also need to establish whether the identified molybdenum, cobalt and copper occurrences contain potentially recoverable concentrations or represent secondary mineralogical indicators. For District Metals, the latest findings expand the exploration potential of Sågtjärn but do not yet establish a larger mineral resource or demonstrate the economic viability of a future mining operation.
The project nevertheless highlights the renewed exploration interest in Sweden’s uranium-bearing geological formations following the country’s regulatory reversal. The key challenge will be converting the newly identified mineralisation into verified mineral resources, technically feasible processing solutions and an environmentally permitted mining project.
The post District Metals Expands Uranium Exploration Targets in Sweden With High-Grade Results at Sågtjärn appeared first on Mining South East Europe.