Amitsoq Phase III Drilling and AAM Pilot Plant

GreenRoc completes key drilling and advances pilot plant, but commercial output remains over a year away.

What the company is saying

GreenRoc Strategic Materials Plc reports the completion of Phase III diamond drilling at the Amitsoq Graphite Project, highlighting eight holes with significant graphite intersections and a maximum true thickness of 23.70m in AM_DD_041. The company emphasizes that drilling has extended the mineralised zone by 100–150m north-northwest and provided sufficient data to proceed to a Pre-Feasibility Study (PFS) scheduled for Q1 2027. The narrative stresses the project's scale, referencing a JORC-compliant resource of 23.05Mt at 20.41% graphite and a PEA model for 8.26Mt at 21.3% graphite over 22 years. GreenRoc also spotlights the arrival and imminent installation of a purification line at its Denmark pilot plant, with commissioning targeted for January 2027. The tone is confident, underlining institutional support via a EUR 5.2 million EIFO loan and a DKK 10,448,826 EUDP grant. CEO Stefan Bernstein and Chairman George Frangeskides are named as leading the operational and strategic push.

What the data suggests

The drilling program achieved eight completed holes from three platforms, with all but one intersecting substantial graphite ore; true thicknesses ranged from 0.80m to 23.70m. The thickest intersections were 23.70m (AM_DD_041) and 23.66m (AM_DD_043), supporting the claim of significant orebody extension. The global JORC resource stands at 23.05Mt grading 20.41% graphite, while the PEA targets 8.26Mt at 21.3% graphite for initial mining, split between 6.17Mt Measured/Indicated and 2.1Mt Inferred. The drilling extended the mineralised zone by 100–150m north-northwest, but resource upgrades and inclusion of new extensions remain subject to assay results and Competent Person assessment. The purification line for the Denmark pilot plant has arrived, with installation underway and commissioning planned for January 2027. A 20-tonne bulk sample is being processed in Finland, intended for use in producing spherical purified graphite (SPG) once the plant is operational. Funding is robust, with a EUR 5.2 million loan and DKK 10,448,826 grant secured. No commercial production or revenue is expected before pilot plant commissioning and PFS completion in 2027.

Analysis

The announcement provides detailed and credible operational progress, including the completion of Phase III drilling, specific drill results, and the receipt of a purification line for the pilot plant. These are realised milestones. However, several key benefits—such as the commencement of the Pre-Feasibility Study (PFS) and the commissioning of the purification line—are scheduled for Q1 2027 and January 2027, respectively, placing material project advancement more than a year away. The ability to produce spherical purified graphite and begin offtake qualification is contingent on successful commissioning, making these claims forward-looking. The project remains capital intensive, with recent funding (EUR 5.2 million loan, DKK 10.4 million grant) supporting ongoing development, but no immediate earnings or cash flow impact is disclosed. While the tone is optimistic and the technical data is robust, the gap between narrative and realised value is moderate: the company frames future milestones as imminent, but actual commercial or financial benefits are long-dated and uncertain.

Risk flags

• ●Execution risk is high, as the transition from drilling results to a successful PFS and pilot plant commissioning involves multiple technical and operational steps that could face delays or setbacks. The purification line is not yet operational, and any issues during installation or commissioning could push timelines further into the future.
• ●Resource classification risk persists, since 2.1Mt of the targeted ore remains in the Inferred category and must be upgraded to Measured or Indicated for mine planning. The inclusion of the newly drilled northern extension in the resource estimate is contingent on pending assay results and third-party validation.
• ●Commercialisation risk is material, as the ability to produce SPG and secure offtake agreements depends on successful pilot plant operation and qualification with customers, which is not guaranteed even after commissioning. The company has not disclosed any binding offtake or sales agreements.
• ●Capital intensity remains a concern, with ongoing investment required for pilot plant build-out, future drilling (Phase IV), and eventual mine development. While recent funding is substantial, further capital may be needed before revenue generation begins.

Bottom line

GreenRoc's update demonstrates credible technical progress at Amitsoq, with detailed drilling intersections and a clear path to a Pre-Feasibility Study and pilot-scale SPG production. The company has secured significant institutional funding and government support, but all commercial milestones—PFS, pilot plant commissioning, and offtake qualification—are scheduled for 2027 or later. No immediate revenue or production is expected, and key value drivers hinge on successful commissioning, resource upgrades, and customer qualification. Investors should focus on assay results, PFS initiation, and evidence of operational pilot plant output as the next critical milestones. The main takeaway is that while operational groundwork is solid, material financial returns remain at least a year away and are subject to substantial execution and market risks.

Announcement summary

(AIM:GROC) GreenRoc Strategic Materials Plc announced the completion of its Phase III diamond drilling program at the Amitsoq Graphite Project and the arrival of the purification line for its pilot plant in Denmark. Eight holes were drilled from three platforms, with significant graphite intersections in all but one hole; the thickest true intersection was approximately 23.70m in drill hole AM_DD_041. The drilling successfully extended the mineralised zone by 100-150m north-northwest and provided sufficient geotechnical and hydrogeological data to proceed to a planned Pre-Feasibility Study (PFS) on the mine, which is scheduled to begin in Q1 2027. The global JORC-compliant Mineral Resource Estimate, announced on 23 January 2023, is 23.05Mt grading 20.41% graphite across Inferred, Indicated, and Measured categories. The Preliminary Economic Assessment (PEA) from 31 October 2023 envisaged mining 8.26Mt of the Lower Graphite Layer at a combined graphite grade of 21.3% over an initial 22 years, with 6.17Mt in Measured and Indicated and 2.1Mt in Inferred categories. The Upper Graphite Layer was not included in the 2023 PEA model. The company aims to convert the 2.1Mt Inferred resource to a higher classification through this drilling. Drill intersections included: AM_DD_039 (LGL) 12.42m apparent, 10.17m true thickness; AM_DD_040 (UGL) 4.91m apparent, 4.61m true; AM_DD_040 (LGL) 9.44m apparent, 9.12m true; AM_DD_041 (LGL) 26.15m apparent, 23.70m true; AM_DD_043 (LGL) 25.18m apparent, 23.66m true; AM_DD_044 (LGL) 4.97m apparent, 3.19m true; AM_DD_046 (MGL) 2.90m apparent, 1.45m true; AM_DD_046 (LGL) 4.17m apparent, 3.19m true; AM_DD_047 (MGL) 1.39m apparent, 0.80m true; AM_DD_047 (LGL) 22.83m apparent, 11.42m true. The purification line, ordered from Sepor in Florida, USA, has been received and is being installed at the pilot plant in Denmark, with commissioning planned for January 2027. A 20-tonne bulk sample from Amitsoq is being processed into graphite concentrate at GTK in Finland. Once the purification line is operational, GreenRoc will be able to produce spherical purified graphite (SPG) and begin qualification with offtake customers. GreenRoc received an Exploitation Licence from the Government of Greenland in December 2025, valid for 30 years. The Amitsoq Project was designated a Strategic Project by the EU in June 2025. In October 2025, GreenRoc signed a binding secured loan facility for EUR 5.2 million from the Export and Investment Fund of Denmark (EIFO) for the Amitsoq work programme and AAM pilot plant. In December 2025, GreenRoc and its consortium partners DTU and IPU were awarded up to DKK 10,448,826 (c. £1.2 million) by the Energy Technology Development and Demonstration Programme (EUDP) for the project "EU Graphite: Building European Production of Graphite Active Anode Material". The technical information in this announcement was approved by Mr Mark Austin, the Competent Person. GreenRoc's CEO is Stefan Bernstein and its Chairman is George Frangeskides.

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