Quantum Data Energy PLC

(Incorporated in England and Wales)

(Registration Number: 12886458)

LEI :213800HFVHGJ9YGO9F71

Share code on the LSE: MAST

ISIN: GB00BNG90H86

Dated: 30 January 2026

Quantum Data Energy PLC

("Quantum", "QDE" or the "Company")

Q1 2026 Business Update and QDE CEO Interviewed on Vox Markets

London, UK - Quantum Data Energy PLC (LSE: MAST) is pleased to announce its Q1 2026 business update below. Further, QDE's Chief Executive Officer, Pieter Krügel, was exclusively interviewed by Vox Markets, and in the interview Pieter provides key highlights from its business update and what to expect for the year ahead. The interview can be viewed on the Vox platform here. It is also available in the media section of QDE's website here.

QDE has recently published a video to summarise its core business model and highlight key benefits to investors. The video can be viewed in the media section of QDE's website here. It is also available on the Vox platform here.

Q1 2026 Business Update:

QDE continues to execute on its strategic evolution from a UK-focused flexible generation power operator to a modular, data-integrated power platform addressing growing demand from digital and data-led infrastructure.

The Company recently completed its re-branding to Quantum Data Energy, reflecting a clearer alignment between its existing flexible generation capabilities and its longer-term strategic focus on power solutions for data-intensive and infrastructure-led use cases. The re-brand is intended to better communicate the Company's positioning, strategy and growth ambitions to investors, partners and stakeholders.

The Company operates a diversified portfolio of flexible generation power assets that contribute to grid stability and reserve power supply. These include Pyebridge (8.1 MW) in Derbyshire, Bordesley (5 MW) in Birmingham, Hindlip (7.5 MW) in Worcestershire, and Stather (2.4 MW) in Lincolnshire. This portfolio of assets provide a stable foundation, supporting both system resilience and the Company's broader development strategy.

Alongside the operation of its existing portfolio, Quantum Data Energy continues to progress multiple growth pathways, including AI-focused datacentre power supply, holiday park power deployments, brownfield acquisitions and greenfield development. These initiatives are underpinned by an expanded development pipeline of approximately 25 MW acquired in mid-2025.

The Company's interest in data-led infrastructure reflects the scale and pace of growth in global electricity demand from datacentres. In 2024, datacentres are estimated to have consumed approximately 415 terawatt-hours of electricity globally, representing around 1.5% of total electricity demand. Industry projections indicate this could rise materially by the end of the decade, highlighting both a significant infrastructure challenge and a substantial opportunity. In the UK, datacentres are already estimated to account for 1-2% of national electricity demand, with grid connection backlogs increasingly acting as a constraint on new development.

In this context, Quantum Data Energy is focused on identifying opportunities to deploy reliable, flexible power solutions in situations where grid capacity is constrained, supporting the continued growth of digital infrastructure while maintaining alignment with the broader energy transition.

In parallel, the Company has made further progress in securing non-dilutive, project-level funding to support up to c.40 MW of next-stage development and acquisition opportunities. Work has also continued on proposals for a c.10 MW combined heat and power (CHP) project at a major UK holiday park, reflecting the Company's focus on scalable, repeatable and infrastructure-led power solutions.

Looking ahead, Quantum Data Energy's strategy is focused on building a flexible generation power platform of 300+ MW over time, with a longer-term ambition to develop AI-focused power campuses at scale. The Company believes this approach positions it to support structural growth in digital infrastructure demand while maintaining capital discipline and a clear focus on execution.

About Quantum Data Energy PLC:

Quantum Data Energy PLC (LSE: MAST) is a UK-based developer, operator and owner of flexible generation power assets. The Company delivers flexible, modular power solutions to the UK grid and AI datacentres worldwide, enabling scalable, reliable energy for next-generation digital infrastructure. The Company has deep expertise in infrastructure planning, grid access, gas access, and efficient power supply. Its new AI power supply strategy is intended to position Quantum as a leading AI infrastructure platform on the London Stock Exchange.

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Disclaimer: This RNS Reach update is intended to provide shareholders with a high-level overview of progress and strategic direction during the quarter. It does not constitute guidance or a forecast. Material developments will continue to be communicated via regulatory announcements as appropriate.

ENDS