Announcement PDF RNS Number : 9495V Arkadian Strategic Metals PLC 23 September 2026 Arkadian Strategic Metals Plc / EPIC: AKN / Market: AIM / Sector: Mining 23 September 2026 Arkadian Strategic Metals Plc ("Arkadian" or the "Company") Arkadian notes US-Greenland defence and security agreement and potential infrastructure benefits for Motzfeldt Arkadian Strategic Metals Plc (AIM: AKN), the strategic metals and gold-focused exploration and development company, notes the agreement signed in New York yesterday, 22 September 2026, between the United States, Denmark and Greenland to strengthen defence and security cooperation in Greenland and the wider Arctic and North Atlantic region. Highlights • Agreement strengthens defence and security cooperation in Greenland and the wider Arctic and North Atlantic, including proposed US defence areas at Narsarsuaq and Mestersvig. • Narsarsuaq is close to Arkadian's 51%-owned Motzfeldt Critical Metals Project and already supports the Company's field operations. • Future investment in regional transport and logistics could support Motzfeldt's development, subject to the scope of investment and arrangements for civilian and commercial access. • Local consultation, residents' livelihoods and environmental protection remain important considerations; technical arrangements and the procedures required for entry into force are still to be completed. Defence and Security Agreement The agreement updates the existing defence framework, providing for expanded US activities at Pituffik Space Base and additional defence areas at Narsarsuaq and Mestersvig. It also addresses military access, investment screening in sensitive sectors and opportunities for Greenlandic businesses to participate in defence-related contracts, while reaffirming the Kingdom of Denmark's sovereignty and Greenlanders' right to self-determination. At the signing ceremony attended by US President Donald J. Trump, the Greenlandic Premier Jens-Frederik Nielsen and the Danish Prime Minister Mette Frederiksen (Figure 1), Greenland's Premier emphasised Greenlanders' rights and livelihoods, shared security responsibilities, mutual respect and NATO's Arctic role. He said the agreement "takes into account the people of Greenland, our rights, our livelihoods". Figure 1: US President Donald J. Trump, the Danish Prime Minister Mette Frederiksen and Greenlandic Premier Jens- Frederik Nielsen signing the defence and security agreement on 22 September 2026 Proposed Narsarsuaq Defence Area Of particular relevance to Arkadian is the proposed defence area at Narsarsuaq, close to the Company's Motzfeldt Critical Metals Project (Figure 2). Arkadian recognises the value of infrastructure that serves local needs alongside commercial activity. The Company respects Greenland's decision-making processes and considers meaningful consultation with local residents and the municipality essential to planning Narsarsuaq's future, with due consideration for existing livelihoods and protection of the environment. The technical arrangements for the additional defence areas remain to be agreed between the parties. Entry into force requires notification to the United States that Denmark and Greenland have completed the necessary parliamentary procedures. Narsarsuaq was established as a US military base in 1941 and used in that capacity until 1958. It subsequently served for many decades as an international airport, a role it fulfilled until earlier this year. Narsarsuaq already plays a practical role in Arkadian's field operations. As reported on 2 September 2026, bulk samples collected from the Aries mineral resource area at Motzfeldt this year were transported by helicopter to Narsarsuaq for onward shipment for further test work. Arkadian's field teams were based out of Narsarsuaq for the duration of the field programme. Figure 2: Motzfeldt Project location shown in orange, approximately 20km east of Narsarsuaq; inset map shows Motzfeldt location in south Greenland. Implications for the Motzfeldt Project Future investment at Narsarsuaq could support regional transport and logistics infrastructure relevant to Motzfeldt and other commercial activities. Any benefit to the Project would depend on the scope of investment and the arrangements for commercial access. Arkadian holds a 51% interest in Motzfeldt, a multi-element project with the potential to supply rare earth elements, niobium, tantalum and zirconium for clean energy, advanced technology and defence applications. The Motzfeldt Project is one of only five critical raw material ("CRM") projects in Greenland identified by GEUS (the Danish & Greenlandic Geological Survey) as a "very large deposit". The Company's recently completed 2026 field programme at Motzfeldt included bulk sampling, geological targeting and environmental baseline studies to support continuing technical assessment and development planning. A review of infrastructure requirements for a future mining operation at Motzfeldt is ongoing. George Frangeskides, Executive Chairman, commented: "We welcome the signing of an agreement between Greenland, Denmark and the United States to strengthen defence and security cooperation in Greenland and the wider Arctic and North Atlantic region. We hope this provides a more stable basis for cooperation and greater certainty for Greenland and its people. "Having invested in Greenland's mining sector consistently over the past decade, initially through the Amitsoq and TBS projects and now at Motzfeldt, we have a longstanding interest in the country and its prosperity. We also take a keen interest in the announcement that Narsarsuaq has been earmarked as an additional US defence area, given Narsarsuaq's existing role in our operations. Infrastructure investment that improves transport and logistics for civilian and commercial users has the potential to support the future development of Motzfeldt and business activity across the region. "At the same time, local residents and the municipality should have meaningful input as plans develop, with due consideration for existing livelihoods and the environment. These same considerations will also continue to guide development at Motzfeldt, where our focus will remain on ensuring a disciplined approach to development supported by technical progress, environmental and social impact assessment, and ongoing engagement with Greenlandic stakeholders." Figure 3: Helicopter taking off from the Aries deposit area at the Motzfeldt Project during the 2026 field programme. 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, financial and business conditions, competition for and availability of qualified staff and contractors, regulatory processes and actions, technical issues, new legislation, laws, treaties and conventions, 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 finance, execute and implement future plans and programmes, 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. ENDS Engage with Arkadian by asking questions, watching video summaries and reading what other shareholders have to say. Navigate to our interactive Investor Hub here: https://arkadianmetals.com/link/rL52qP For further information, please visit the Arkadian Strategic Metals Plc investor website (www.arkadianmetals.com) and sign up to receive news and engage with the Arkadian management team. Subscribe to our news alert service (https://arkadianmetals.com/auth/signup) and visit @ArkadianMetals on X (formerly Twitter). Arkadian Strategic Metals Plc George Frangeskides, Executive Chairman +44 20 3950 0725 SPARK Advisory Partners Limited (Nomad) Andrew Emmott +44 20 3368 3555 CMC Markets plc (Broker) Thomas Smith / Douglas Crippen +44 20 3003 8632 Arkadian's Projects & Investments Projects Operated by Arkadian Location Ownership Clogau (gold) Wales 100% Dolgellau Gold Exploration (gold) Wales 100% Gwynfynydd (gold) Wales 100% Investments Held by Arkadian Location Ownership Motzfeldt Critical Metals Project Greenland 51% GreenRoc Strategic Materials Plc (graphite - anode) Greenland 23.97% Horse Hill (oil) England 11.765% Earn-in Projects Location Earn-in Rights Finnsbo (rare earths, copper, gold) Sweden Up to 100% This information is provided by Reach, the non-regulatory press release distribution service of RNS, part of the London Stock Exchange. Terms and conditions relating to the use and distribution of this information may apply. 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