Data Access Agreements

(AIM:EPP) EnergyPathways plc has entered into a number of technical agreements to access a suite of geotechnical data and analytical services for the development of salt caverns at its MESH project in the East Irish Sea and at Barrow-in-Furness, Cumbria. The agreements provide access to reprocessing, interpretation, and analytical work to further de-risk the geotechnical model of the salt sequence within the Company's Gas Storage Licence GS009. This geotechnical model will underpin a financial bankability certification for salt cavern construction. The bankability certification is intended to support the pathway to MESH infrastructure debt financing. The agreements are expected to deliver material cost savings of approximately £20 million by removing the requirement for appraisal drilling or seismic acquisition. The works will also satisfy a significant part of the Company's Gas Storage Licence obligations. The salt sequence within EnergyPathways' licence is described as thick and geologically predictable, with a thickness of 500-600 metres, suitable for large-scale caverns. The salt has very low insoluble content, high geomechanical strength, optimal depth for low-cost pressure management, an offshore location for low-cost, low environmental impact brine dispersal, and is in shallow water for low-cost development drilling. The geotechnical model is targeted for completion in the first half of 2027. Ben Clube, CEO of EnergyPathways, stated that the agreements allow the company to accelerate technical development of MESH while maintaining cost discipline. He noted that using existing high-quality data rather than drilling additional appraisal wells or acquiring new seismic data is expected to save more than £20 million and expedite progress toward bankability certification. Clube also stated that the studies are expected to demonstrate strong fundamentals for the salt sequence and that certification will be an important technical and commercial milestone for MESH. The announcement contains inside information for the purposes of Article 7 of EU Regulation 596/2014.

Accelerated Hydrogen-Graphite Production Facility

(AIM:EPP) EnergyPathways plc announced it is fast-tracking the development of its low-carbon hydrogen and graphite production facility at Barrow-in-Furness, Cumbria, aiming to become revenue generative by 2029, with the possibility of an earlier project start-up subject to further design optimisation and supply chain management. The hydrogen, graphite, and ammonia production segment, referred to as 'Hydrogen Industries', is the third pillar of the company's integrated MESH project, alongside LDES and natural gas/hydrogen storage. The commercialisation of the Hydrogen Industries pillar does not depend on government commercial support and involves minimal regulatory process. Land has been identified for the facility, with existing gas and power network connections in place, and engineering work is progressing with technology partners Hazer Group (with KBR) and Hycamite TCD Technologies. The Barrow facility will use methane splitting technology to convert natural gas into low-carbon hydrogen and solid graphitic carbon, capturing the carbon as graphite rather than releasing it as CO₂. The company has identified established markets for graphite across a range of grades, providing strong market dynamics and a clear path to monetisation. The graphite strategy will be executed in two phases: Phase 1 will focus on supplying graphite to tyre manufacturing, metallurgical industries, and for blending into concrete and asphalt; Phase 2 will involve converting graphitic carbon into high-grade graphite suitable for electric vehicle batteries and advanced applications. The identified site in Barrow is capable of hosting a 20,000 tonne per annum plant, with potential for future expansion, and negotiations for its purchase are underway. Existing grid connections will enable fast-track development, and the company is in direct dialogue to secure a prioritised grid connection. EnergyPathways is targeting early revenues by 2029 without reliance on government subsidy, though it will continue to explore potential grants for higher-quality graphite development. CEO Ben Clube stated that the company is accelerating the project to underpin strong cash flows at attractive EBITDA margins, with ongoing workstreams including land acquisition or lease and grid connection engagement. The company is engaging with offtake clients and strategic investors, as well as private capital, to fund the fast-tracked development. The MESH Long Duration Energy Storage project, designated as a project of 'national significance' by the UK Government, will combine compressed air energy storage with natural gas and hydrogen storage, and is set to become the UK's largest LDES project at 300 MW / 55 GWh / 100+ hours. MESH aims to start hydrogen production operations in 2029-2030, followed by LDES operations in 2031-2032, subject to government policy, approvals, and financing. Last year, the cost to consumers of switching off wind farms and replacing this with gas power was in excess of £1.5 billion, and by 2030 this is expected to increase to more than £8 billion as wind surpluses rise. The MESH project will provide multi-day storage capability, strengthen national energy security, and has the potential to provide capacity equivalent to 6 days of national gas supply, more than doubling the UK's gas storage capability. The project is at an advanced stage of development and is awaiting policy and regulatory framework from the upcoming Energy Independence Bill.

Intellectual Property Patent Application

(AIM:EPP) EnergyPathways plc announced that it has filed patent applications for key technology innovations developed in-house to enhance its modular Compressed Air Energy Storage (CAES) system. The patent applications cover technology for storing heat or thermal energy created during the compression phase of the CAES system, with thermal energy to be stored in sub-surface salt caverns and released later to improve round-trip efficiency. The MESH Long Duration Energy Storage (LDES) project, which is designated by the Government as being of national significance, is set to be the UK's largest LDES project at 300MW / 55GWh / 100+ hours duration. The technology is designed to lower the UK's energy costs and strengthen energy security by storing renewable energy at scale. The new technology is expected to improve round-trip efficiency of CAES energy storage to as much as 72%. Key advantages include reducing CAES natural gas fuel usage and associated carbon emissions, lowering the cost of thermal storage by reducing the need for expensive high pressure equipment, and enabling deployment in space-constrained locations such as offshore facilities, protected ecological areas, and densely populated or community sensitive areas. The company states that the technology provides a pathway to near-term recurring revenues through long-term licensing agreements and royalties. Ben Clube, CEO of EnergyPathways, commented that the patent filings build on the company's strategy to integrate innovation and develop storage solutions that lower energy costs and strengthen energy security. He noted that LDES is a major growth sector in energy transition and that the innovations further enhance MESH's integrated platform to provide system flexibility at scale and across any timescale. The company has identified further locations in the UK suited for MESH technology and highlighted that the UK is looking to install at least 20 GW of LDES and ultra-LDES.

Energypathways Plc — Issue of Fee Shares

(AIM: EPP) EnergyPathways plc announces the issue of 875,054 new ordinary shares of 1 pence each in settlement of consultancy and advisory fees for members of the MESH project management team for Q2 2026. The Company has issued 875,054 Fee Shares, representing a total of £61,509.20 in fees payable by the Company at a price of approximately 7.03 per Fee Share. The pricing for these shares is based on the 5-day VWAP for the last five days of trading, calculated on a monthly basis or current basis, as required under the contracts. Application will be made for the Fee Shares to be admitted to trading on AIM, which is expected to occur on or around 28 August 2026. The Fee Shares will rank pari passu in all respects with the Company's existing ordinary shares currently traded on AIM. Following Admission, the Company's issued share capital will comprise 251,700,216 ordinary shares of 1 pence each. This number will represent the total voting rights in the Company.

Investor Events

(AIM:EPP) EnergyPathways plc announced that its CEO, Ben Clube, will be presenting at the Investor Summit in London on Friday 18 September 2026. The company intends to host a series of in-person investor events over the next six months, with the first event scheduled to take place in Aberdeen at 6:30pm on Thursday 24 September 2026 at Maryculter House, South Deeside Road, Aberdeen AB12 5GB. The purpose of the events is to provide investors with operational and corporate progress at the Company's flagship MESH long-duration energy storage project as it moves towards critical milestones. Further events are planned to take place in London, Edinburgh, Leeds and Manchester, with details to be provided once dates and venues are confirmed. The presentation materials and any other marketing collateral used at these events will be posted to the Company's website as appropriate. CEO Ben Clube stated that EnergyPathways is entering a highly active period with numerous value catalysts on the near-term horizon as the company progresses through FEED to FID on the MESH project. Investors are encouraged to register for the Aberdeen event and submit questions in advance via the company's website.

Financing Agreement Drawdown for MESH Project

(AIM: EPP) EnergyPathways plc has drawn down a second tranche of £1 million (before costs and expenses) under its £15 million Financing Agreement announced on 28 April 2026. The net proceeds of this drawdown will be deployed to facilitate the next phases of the work commitments agreed with the North Sea Transition Authority (NSTA) for the company's Marram Energy Storage Hub project (MESH). In conjunction with the drawdown, the Company has issued 3,431,073 warrants to the Investor, representing 30% of the value of the drawdown, with the warrants exercisable at 12.24 pence per Ordinary Share. The MESH project is targeted to be operational by 2030, subject to government approvals and financing, and is expected to provide a secure and dependable supply of affordable low-carbon energy for the UK market for over 25 years. The MESH system will connect its LDES integrated storage system using existing infrastructure to the UK grid and nearby offshore wind capacity. EnergyPathways has exclusive rights of use within the UK for methane pyrolysis technology to produce affordable low-carbon hydrogen. The by-product of the MESH hydrogen production facility is a high-grade form of synthetic graphite.

Appointment of Independent Non-Executive Director

EnergyPathways plc (AIM: EPP), an energy transition company based in the United Kingdom, has appointed Alison Louise Flower as an Independent Non-Executive Director. Alison Flower brings over 30 years of experience in the energy sector, including roles at the UK's Foreign, Commonwealth and Development Office and BG Group. She will provide commercial and policy insight as the company progresses its MESH energy storage project, which is expected to be Britain's largest integrated energy storage project. The MESH project combines compressed air energy storage with natural gas and hydrogen storage, and is located in the Irish Sea, connected to Barrow-in-Furness. The project is targeted to enter operation in 2031 and has the potential to support up to 60 sub-surface salt caverns. The appointment is intended to strengthen the company's strategic capabilities as it advances the MESH project and its growth plans. There is no further information to be disclosed pursuant to Rule 17 and Schedule 2 (g) of the AIM Rules for Companies.

Appointment of Chief Scientific Adviser

(AIM:EPP) EnergyPathways plc announced the appointment of Martyn Millwood Hargrave as Chief Scientific Adviser to the CEO and Board. The Company's MESH project is expected to be Britain's largest integrated energy storage project and has been designated a project of 'national significance' by the UK Government. MESH combines compressed air electrical storage with natural gas and hydrogen storage, utilising large scale subsea storage connected into Barrow-in-Furness. MESH has the potential to produce synthetic graphite for use in civil nuclear, defence and battery applications. Martyn Millwood Hargrave is the founder and former CEO of Ikon Science, a global subsurface software company acquired by Constellation Software in 2025.

NSTA decision to offer Gas Storage Licence

EnergyPathways plc (AIM: EPP) announced that its wholly owned subsidiary, EnergyPathways Irish Sea Limited, is to be awarded a Gas Storage Licence (GSL) by the North Sea Transition Authority (NSTA) for its MESH project. The MESH Project, located in the East Irish Sea and onshore in Barrow-in-Furness, is expected to be Britain's largest integrated energy storage facility, with the potential for up to 60 large-scale salt storage caverns and multi terawatt-hour scale energy storage. The project aims to double Britain's gas storage capacity, provide up to 6 days of national energy supply, and deliver 300 MW / 55 GWh of CAES storage. The project has been designated by the UK Government as of 'national significance' and is targeted for Final Investment Decision (FID) in 2028 and start up by late 2031.

Drawdown of £1m Finance and Issue of ATM Shares

EnergyPathways plc (AIM: EPP) has drawn down a first tranche of £1 million from its previously announced £15 million Financing Agreement to accelerate the development of its Marram Energy Storage Hub project (MESH) in the United Kingdom. The funds will be used for the Front End Engineering Design (FEED) of what is expected to be the world's largest compressed air energy storage (CAES) facility. In conjunction with the drawdown, the company has issued 5,060,917 warrants to the investor and 6,939,727 ATM Shares at 1 pence per share to provide further working capital. Admission of the ATM Shares to trading on AIM is expected on or around 6 May 2026, bringing the total issued ordinary share capital to 232,097,903 shares. The MESH project is targeted to be operational by 2030, subject to government approvals and financing.

Study shortlists sites for MESH onshore facilities

EnergyPathways plc (AIM: EPP) announced that Costain Group PLC has completed the first phase of engineering studies to shortlist onshore sites for the MESH energy project at Barrow-in-Furness, Cumbria. The MESH project, designated as nationally significant by the UK Department of Energy Security and Net Zero in September 2025, is an integrated long-duration energy storage project in the east Irish Sea. Costain is now progressing with a second phase of detailed engineering design work. The project aims to develop a sustainable industry park at Barrow-in-Furness, potentially including hydrogen, graphite, and ammonia production facilities, as well as energy storage and export infrastructure. The development is dependent on securing financing and planning approvals.