Quantum Data Energy PLC

(Incorporated in England and Wales)

(Registration Number: 12886458)

LEI :213800HFVHGJ9YGO9F71

Share code on the LSE: MAST

ISIN: GB00BNG90H86

Dated: 3 February 2026

Quantum Data Energy PLC

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

Record High Monthly Electricity Generation and Revenues Achieved

and QDE Progresses Third FlexGen Site to Financial Close and Construction

London, UK - Quantum Data Energy PLC (LSE: MAST) is pleased to announce, further to its RNS announcement dated 6 January 2026, that its 100% owned Pyebridge 8.1 MW flexible generation power asset has continued its sterling performance and achieved another new record high electricity generation and revenues for any single calendar month to date in January 2026. Pyebridge's ongoing excellent performance highlights the ongoing strong demand for flexible generation power and underscores QDE's core business model.

Further, QDE has made significant progress to get its third flexible generation power project to financial close and into construction and commercial operations (the first being QDE's Pyebridge 8.1 MW flexible generation power asset that is in production, and the second being QDE's Hindlip 7.5 MW flexible generation power project that is fully funded in partnership with Powertree and currently in construction with commissioning, commercial operations and income generation expected during Q2 2026).

The highlights of the abovementioned matters are detailed below.

Pyebridge Revenue Update Key Highlights:

·    Pyebridge achieved another record high electricity generation output and sales of c. 1.8 Gigawatt/hours ("GWh") for the month of January 2026, representing its highest generation output in any single calendar month to date;

·    Pyebridge generated and sold c. 11.6 GWh of electricity during the 12-month rolling period up to January 2026 representing an increase of c. 64% compared to the same prior year 12-month rolling period;

·    This sustained high output underscores the asset's robust operational performance and the strong demand for flexible generation capacity amid intermittent renewable supply;

·    Pyebridge has achieved an average total revenues of c. £290,000 per MW in production per annum over the past rolling 12-month period ending January 2026;

·  During the 12-month rolling period ending January 2026, Pyebridge achieved an average electricity sales price of c. £127/MWh representing an outperformance of c. 62% compared to the average wholesale market electricity price over the same period; and

·    During the 12-month rolling period ending January 2026 Pyebridge generated and sold electricity for an average of 11 hours per day, and during January 2026 for an average of 18 hours per day, demonstrating the ongoing strong demand for flexible power generation and validating QDE's core business model.

Third FlexGen Project Key Highlights:

·  QDE is in advanced discussions with Power Balancing Services (PBS), regarding QDE's 100% owned Bordersley 5 MW flexible generation project;

·    PBS is the joint venture partner in Powertree with which QDE has fully funded its Hindlip 7.5 MW flexible generation project that is currently in construction;

·    QDE has agreed in principle with PBS to co-fund the capex of its Bordesley project;

·    The capex funding will be structured at project SPV level;

·   It is expected that the investment transaction will be completed within the next few weeks, at which time the key terms of the transaction will be announced;

·    It is the plan and intention to fully commence with construction at Bordesley as soon as financial close has been completed, and to reach commissioning, commercial operations and income generation during Q4 2026;

Pieter Krügel, CEO at Quantum Data Energy PLC, said: "We are very proud of the ongoing sterling performance of our Pyebridge asset, having achieved another record high electricity generation and revenues for any single calendar month to date in January 2026. Pyebridge's ongoing excellent performance highlights the ongoing strong demand for flexible generation power and underscores QDE's core business model. Further, we are excited to progress our third flexgen project into construction, as we continue to build our portfolio of flexgen assets to 300 MW and beyond."

Issued Share Capital and TVR:

Capitalised terms used in this part of the announcement have the same meaning as those given to them in the Company's RNS announcement dated 23 May 2025 unless otherwise defined.

This part of the announcement is made in accordance with DTR 5.6.1.

The Company announces that following the application to and subsequent approval by the London Stock Exchange for the Prepaid and Cash Warrants block listings as previously announced on 17^th September 2025 and 7^th October 2025 respectively, and further to its RNS announcement dated 6 January 2026, the Company has during the period since 6 January 2026 issued a further  5,000,000 shares fully paid ("Ordinary Shares").The Ordinary Shares' issues follow the exercise of Cash Warrants, issued pursuant to the share issue authorities approved by shareholders at the Company's General Meeting held on 8 July 2025 and as detailed in its FCA approved Prospectus published on 9 July 2025.

Such Ordinary Shares were admitted to the Official List of the UK Listing Authority and to trading on the London Stock Exchange's main market for listed securities under the Company's Cash Warrants block listing facility.

As of 2 February 2026, the Company's issued share capital will consist of 176,529,152 Ordinary Shares with voting rights. The Company does not hold any ordinary shares in treasury. This figure of 176,529,152 may be used by shareholders in the Company as the denominator for the calculations by which they will determine if they require to notify their interest in, or a change to their interest in, the share capital of the Company under the UK Financial Conduct Authority's Disclosure Guidance and Transparency Rules ("DTR").

Significant shareholdings (>3% holding) will be updated on the Company's website www.quantumdata.energy to coincide with the release of this announcement.

Prepaid and Cash Warrants:

Essentially all of the Prepaid Warrants have been exercised and announced previously with only 758,836 (or 0.61% of the total) Prepaid Warrants remaining unexercised. Under the terms of the Equity Fundraise as previously announced, 50% of the Cash Warrants originally issued to the extent not previously exercised expired on 11 January 2026, and after the exercise of the 5,000,000 Cash Warrants noted above, result in 117,200,000 Cash Warrants remaining unexercised. Such remaining unexercised Cash Warrants expire on 11 July 2026 if not exercised before this date.

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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.

ENDS

This announcement contains inside information for the purposes of the UK version of the Market Abuse Regulation (EU No. 596/2014) as it forms part of United Kingdom domestic law by virtue of the European Union (Withdrawal) Act 2018 ('UK MAR'). Upon the publication of this announcement, this inside information is now considered to be in the public domain.