GreenRoc Strategic Materials is progressing exploration and downstream development at its Amitsoq graphite project in Greenland, following the completion of a new drilling campaign and the delivery of key equipment for a purification pilot plant in Denmark. The two developments could support the creation of an integrated supply chain for battery-grade graphite serving European manufacturers.
The London-listed company confirmed that its Phase III drilling programme had extended known mineralisation by approximately 100–150 metres to the north-northwest. The results provide additional geological, geotechnical and hydrogeological information ahead of a planned pre-feasibility study, scheduled to begin in the first quarter of 2027.
Meanwhile, major components of the purification line have arrived at GreenRoc’s pilot facility in Hørsholm, Denmark. Installation preparations are underway, with commissioning targeted for January 2027, subject to an internal safety audit. The parallel development of the Greenland deposit and Danish processing facility is intended to demonstrate how locally sourced graphite could be converted into higher-value materials for Europe’s battery industry.
Drilling extends Amitsoq graphite mineralisation
GreenRoc completed eight diamond drill holes from three drilling platforms, compared with ten holes originally planned. The campaign identified substantial graphite-bearing intersections and extended the known mineralised zone beyond the previous exploration area.
The thickest estimated true intersection measured 23.70 metres in drill hole AM_DD_041, while hole AM_DD_043 returned an estimated true thickness of 23.66 metres. These results indicate continuity of graphite-bearing horizons and could provide greater flexibility for future mine planning. They may also support efforts to improve geological confidence in areas currently classified as Inferred.
Amitsoq’s existing JORC-compliant mineral resource, published in January 2023, totals 23.05 million tonnes at an average grade of 20.41% graphite, across Measured, Indicated and Inferred categories.
The project’s 2023 preliminary economic assessment considered mining 8.26 million tonnes from the Lower Graphite Layer, at an average grade of 21.3% graphite, supporting a proposed initial mine life of 22 years. The newly identified northern extension has not yet been included in an updated mineral resource estimate. Its contribution will depend on laboratory assay results and independent assessment by a competent person.
The distinction between confirmed resources and newly identified mineralisation is important for future investment decisions. Resource size and grade alone cannot establish commercial viability. A more advanced development assessment must also demonstrate recoverable volumes, practical mine design, operating costs, infrastructure requirements and the ability to produce material meeting customer specifications.
Danish pilot plant prepares for graphite purification
Alongside exploration, GreenRoc is developing downstream processing capabilities to convert graphite concentrate into purified material suitable for lithium-ion battery anodes.
The company has received key equipment for its Danish pilot facility, including reactor tanks, pumps, filtration systems, ovens and rinsing equipment. A separate water purification system has already been installed to provide the high-purity process water required for operations. Commissioning of the purification line is targeted for January 2027.
GreenRoc is also processing a 20-tonne bulk sample from Amitsoq through the Geological Survey of Finland’s GTK facilities, with the objective of producing graphite concentrate. Once the Danish pilot plant becomes operational, this material is expected to provide feedstock for producing spherical purified graphite and initiating customer qualification during 2027.
This stage is commercially important because battery manufacturers require detailed testing before approving new suppliers. Qualification typically involves assessing material purity, particle characteristics, electrochemical performance and consistency between production batches. Successful pilot operations would therefore represent technical progress rather than immediate commercial production. The results could, however, provide evidence needed for discussions with potential customers, investors and financing partners.
European battery supply chains create a market opportunity
Amitsoq is advancing as the European Union seeks to diversify supplies of critical raw materials and reduce dependence on concentrated international processing capacity.
Graphite is an essential component of lithium-ion battery anodes, making it important for electric vehicles, stationary energy storage and wider industrial electrification. China maintains a dominant position in graphite processing and anode-material manufacturing, creating supply-chain vulnerabilities for European battery producers.
The EU’s Critical Raw Materials Act sets 2030 benchmarks aimed at expanding domestic extraction, processing and recycling. These include capacity equivalent to at least 10% of annual strategic raw-material consumption from extraction, 40% from processing and 25% from recycling. The framework also seeks to limit dependence on any single external supplier.
These targets apply at the EU level rather than imposing individual production obligations on projects such as Amitsoq. Greenland’s graphite resources, combined with Denmark’s industrial infrastructure, offer a potential route for developing additional supply capacity for European manufacturers. However, the commercial competitiveness of this model will depend on the costs of mining, transportation, concentration, purification and anode-material production compared with established international suppliers. The cross-border structure also introduces logistical and regulatory requirements that will need to be addressed as the project advances.
Pre-feasibility study to define development requirements
The next major milestone is the planned pre-feasibility study, which GreenRoc expects to commence in the first quarter of 2027. The company is reviewing proposals from contractors to undertake the work.
The study is expected to examine mine development in greater detail, including the proportion of the existing resource that could be incorporated into a technically and economically viable operation. It should also assess infrastructure requirements, processing capacity and the capital expenditure needed to advance the project. Further drilling is planned for spring or summer 2027. Equipment has already been stored in Greenland to help reduce future mobilisation costs.
The additional exploration and Danish processing programme represent two complementary development priorities. Improved resource definition could strengthen confidence in the availability of long-term feedstock, while successful purification testing could demonstrate the potential to produce material suitable for battery manufacturers.
Nevertheless, several important requirements remain outstanding. GreenRoc needs to confirm drilling results through assays, update its resource model, complete the pre-feasibility assessment, demonstrate reliable processing performance and progress through customer qualification. The results of these activities will determine whether Amitsoq can move beyond exploration and early-stage development towards an integrated graphite production and processing business. For the European battery industry, the project’s potential value lies not only in Greenland’s graphite resources but also in the possibility of establishing a diversified supply chain connecting mining, processing and battery-material production within a broader European industrial network.
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