REG - GreenRoc Strategic - Amitsoq and AAM Pilot Plant Update

GreenRoc Strategic MaterialsAnnouncement

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RNS Number : 9569F  GreenRoc Strategic Materials Plc  28 May 2026

 

28 May 2026

GreenRoc Strategic Materials Plc

("GreenRoc" or the "Company")

 

Amitsoq and AAM Pilot Plant Update

 

GreenRoc Strategic Materials Plc (AIM: GROC), a company focused on the
development of critical mineral projects in Greenland, is pleased to announce
further details regarding the Phase III drilling programme at the Company's
flagship Amitsoq Graphite Project in Greenland ("Amitsoq" or the "Project").
Further, the Company's pilot active anode material ("AAM") plant has produced
its first spheronised graphite, and GreenRoc has joined the Critical Minerals
Association (UK) (the "CMA").

 

Highlights

 

·      Drill rigs and equipment are en route from Canada to Nanortalik,
which will serve as the hub for onward transport to Amitsoq.

·      Mobilisation of drill contractors and Company personnel is
scheduled for the second half of June 2026.

·      At the AAM pilot plant, several c. 100kg batches of graphite
concentrate have been successfully produced.

·      GreenRoc has joined the CMA, the UK's leading industry-led body
dedicated to building secure and sustainable critical mineral supply chains.

·      GreenRoc management met with EU officials at the EIT Raw
Materials Summit in Brussels.

 

Amitsoq Drilling Programme and Logistics

 

As described in the Company's RNS of 8 April 2026, the Phase III drilling
programme at Amitsoq aims to upgrade the Inferred Mineral Resource announced
in January 2023, which was based on the Phase I and II drilling programmes
completed in 2021 and 2022, respectively. Equally as important, the drilling
programme will enable the Company to acquire technical information and data on
rock strength, stability, and hydrogeology which will be essential for the
Pre-Feasibility Study on Amitsoq which is planned to start by the end of 2026.

 

Up to 12 holes are planned to be drilled from four drill sites for a total of
ca 2,200m, with the deepest hole planned to be ca 285m.

 

In preparation for the drilling, two GreenRoc staff members travelled to
Amitsoq in late April 2026 to mark out sites for the construction of drill
platforms, test access routes and settle logistics, in addition to meeting
local contractors.

 

The drill rigs and associated equipment have been shipped from Canada by drill
contractor MEDL and are presently on their way to Nanortalik, estimated to
arrive around the middle of June.

 

Nanortalik town and its deepwater harbour are located only about 15km south of
Amitsoq and will act as a staging point for the equipment arriving in
containers, which will then be unloaded into a landing craft barge and shipped
directly to Amitsoq.

 

At Amitsoq, the rigs and other equipment will be unloaded using a
barge-mounted crane and moved into position at the drill platforms by
chartered helicopter, serviced from nearby Qaqortoq.

 

During the programme, drill core will be logged on site and selected sections
will be cut, sampled and shipped for geochemical analysis at ALS laboratories
in Ireland.

 

GreenRoc staff will arrive in Nanortalik on 19 June 2026 to begin on site
preparations, with drill crew and other personnel due to arrive between 23-26
June. A geotechnical team from SLR Consulting will join the project in July to
initiate the geotechnical data collection. Dr. John Arthur, Chartered
Geologist (FGS CGeol no. 1005744), who undertook the Mineral Resource Estimate
for Amitsoq and is contracted to revise the Mineral Resource Estimate to
reflect the data to be acquired during the Phase III drilling, will conduct a
site visit in late July 2026.

 

Figure 1. Greenroc team member inspecting planned drill sites at Amitsoq,
April 2026.

 

 

GreenRoc's AAM Pilot Plant

 

In late April, the Company announced the commissioning of the micronisation
and spheronisation mills (refer to the RNS of 29 April 2026).  Several
batches of ca 100kg graphite concentrate have now been run through the pilot
plant. The analytical results from the first 100kg test batch shows a d50
(i.e., a median particle diameter) of 14.8 micrometer (thousands of a
millimeter) and a tap density of 0.85 g/cm3. Given the target d50 was set at
15.0 micrometer, and a tap density of 0.9 g/cm3, this is considered very good
results for the first test run. The tap density serves as a guide to the
degree of roundness of the graphite grains. The results were obtained after
several runs with the QWJ 60 microniser and QWJ 30 spheroniser mills.

 

GreenRoc's pilot plant team is currently optimising the milling parameters in
order to achieve a narrower grain size distribution and to increase the tap
density.

 

Greenroc is holding a formal opening ceremony for the pilot plant on 2 June
2026. Persons interested in attending should contact the Company at the
contact details given below.

 

Figure 2. Photomicrograph of Greenroc's first run of spheronised graphite. The
image was acquired using a scanning electron microscope at the Danish
Technical University (DTU). Some of the platy or angular particles represent
mineral impurities inherent in the graphite ore, as the spherical graphite has
not been subjected to purification (the purification instruments are due to
arrive in H2 2026).

 

Other developments

 

At the EIT Raw Materials Summit 2026, held in Brussels last week, Greenroc was
represented by Chairman George Frangeskides and CEO Stefan Bernstein who met
with several officials from the EU during the summit. Stefan Bernstein also
had the opportunity to hold a meeting with EU Commissioner for Energy Dan
Jørgensen and discuss the progress of the Project.

 

Also last week, at the "Future Greenland" Business Conference in Nuuk,
Greenland, Jozef Sikela, the EU Commissioner for International Partnerships,
spoke about the close collaboration and partnership between the EU and
Greenland. At the conference, the trade bodies Danish Industry, Greenland
Business Association and investment firm Copenhagen Infrastructure Partners
presented a catalogue of 'Sustainable investment opportunities in Greenland'
which shortlisted nine projects of which Amitsoq was one. Link to the report:

https://cipfonden.dk/wp-content/uploads/2026/05/Investment-catalogue-English-final.pdf
(https://cipfonden.dk/wp-content/uploads/2026/05/Investment-catalogue-English-final.pdf)

 

Finally, the Company is pleased to announce that it is now a member of the
Critical Minerals Association (UK) (the "CMA").  Having access to the CMA's
network of industry leaders and policymakers will provide further support for
the Company's plans to accelerate the development of the Amitsoq graphite mine
and commercial active anode materials plant.

 

GreenRoc's CEO, Stefan Bernstein, commented:

"We are very pleased with the progress achieved in the planning of the Phase
III drilling programme. The finer details required to mount a substantial
field programme of this kind are now falling into place. In parallel, our
pilot anode plant is delivering encouraging early processing data and
providing a solid foundation for the further optimisation of particle size
distribution and grain shape in our flowsheet."

 

**ENDS** 

 

For further information, please contact:

 

 Investor questions on this announcement         https://greenrocplc.com/link/yMb6be (https://greenrocplc.com/link/yMb6be)

 We encourage all investors to share questions

 on this announcement via our investor hub
 GreenRoc Strategic Materials Plc                info@greenrocplc.com (mailto:info@greenrocplc.com)

 Stefan Bernstein, CEO                           +44 20 3950 0724

 Cairn Financial Advisers LLP (Nomad)

 Sandy Jamieson / Louise O'Driscoll              +44 20 7213 0880

 Oberon (Broker)                                 +44 20 3179 5300

 Nick Lovering/Adam Pollock

 

Forward Looking Statements

 

This announcement contains forward-looking statements relating to expected or
anticipated future events and anticipated results that are forward-looking in
nature and, as a result, are subject to certain risks and uncertainties, such
as general economic, market and business conditions, competition for qualified
staff, the regulatory process and actions, technical issues, new legislation,
uncertainties resulting from potential delays or changes in plans,
uncertainties resulting from working in a new political jurisdiction,
uncertainties regarding the results of exploration, uncertainties regarding
the timing and granting of prospecting rights, uncertainties regarding the
timing and granting of regulatory and other third party consents and
approvals, uncertainties regarding the Company's or any third party's ability
to execute and implement future plans, and the occurrence of unexpected
events.

 

Actual results achieved may vary from the information provided herein as a
result of numerous known and unknown risks and uncertainties and other
factors.

 

 

About GreenRoc

 

GreenRoc Strategic Materials Plc is an AIM-quoted UK public company focused on
developing the Amitsoq Graphite Project in Greenland into a producing mine to
meet critical demand from Electric Vehicle ('EV') manufacturers in Europe and
North America for new, high grade and conflict-free sources of graphite.

 

Amitsoq is one of the highest-grade graphite deposits in the world with a
combined Measured, Indicated and Inferred JORC Resource of 23.05 million
tonnes (Mt) at an average grade of 20.41% graphite, sufficient to sustain more
than 20 years of mining. GreenRoc received an Exploitation Licence from the
Government of Greenland in December 2025, valid for 30 years.

 

The plans for the Amitsoq Project include the construction of a facility to
further process the mined graphite into active anode material ("AAM") - an
indispensable component of Li-batteries - which plans have independently and
positively evaluated to prefeasibility study stage.

 

The Amitsoq Project was designated a Strategic Project by the EU in June 2025.
The Project has also been ESG-certified by Digbee™, an independent platform
which provides sustainability assessments for the mining industry.

 

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
financing of the Company's work programme at Amitsoq and the AAM pilot plant.

 

In December 2025, GreenRoc, together with its consortium partners DTU and IPU,
were granted by the Energy Technology Development and Demonstration Programme
("EUDP"), a Danish government funding programme, the sum of up to DKK
10,448,826 (ca £1.2m) for their project entitled "EU-Graphite: Building
European production of graphite active anode material".

 

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