Quantum Data Energy PLC

(Incorporated in England and Wales)

(Registration Number: 12886458)

LEI :213800HFVHGJ9YGO9F71

Share code on the LSE: MAST

ISIN: GB00BNG90H86

('QCD' or 'the Company')

Dated: 13 January 2026

Quantum Data Energy PLC

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

Hindlip 7.5 MW FlexGen Power Project Makes Significant Construction Progress

London, UK - Quantum Data Energy PLC (LSE: MAST) is pleased to announce, further to its previous RNS announcement dated 6 November 2025, that its Hindlip 7.5 MW flexible generation power project ("Hindlip"), which is fully funded in partnership with Powertree as previously announced, has made significant construction progress and is on track to complete construction and start commercial operations and income generation during Q2 2026 as planned. Key highlights and details are provided below.

Hindlip Construction Progress Key Highlights:

QDE is pleased to confirm that progress remains on schedule, with major civil and structural works now largely complete and the site preparing to transition into the electrical installation phase.

Key activities and next steps are as follows:

·    Site clearance is now fully complete - All ground preparation, levelling and sub-surface works have been concluded;

·    All concrete bases have been laid - This includes pads for gensets, transformers, switchgear, gas infrastructure, control room, and auxiliary equipment;

·    Full perimeter fencing is now installed - The site boundary is secured and ready for restricted-access operational works;

·    Acoustic Fencing steel supports have been installed; and

·    Switchgear building construction progressing well, with building shell now erected and roofing installed. Doors expected to be installed late January 2026.

QDE confirms that the project has now transitioned into the electrical phase, with the following currently being executed:

·    HV cable trenching and duct installation;

·    LV and signal ducting works;

·    Full earthing grid excavations and installation;

·    Cable pulls and termination works to follow thereafter;

·    Control Room container and GRP building - expected late January 2026; and

·    On-site delivery of gensets, transformers and HV switchgear - expected mid-February 2026

Based on current progress and contractor confirmations, pre-commissioning is still expected to begin in early April 2026, with final commissioning and performance testing to occur mid-May 2026.

Photos below from the Hindlip site showing significant construction progress on site:

1.   Site perimeter fencing installed, securing the site

2.   Concrete bases now complete, with electrical cable ducting visible

3.   Switchgear room construction progressing well, with building shell and roof now complete

4.   Acoustic fencing steel supports in place

Ivan Wentzel, Head of Operations at Quantum Data Energy PLC, said: "The Hindlip project has moved from groundwork into full structural development. Civil works are effectively complete and the programme remains on track. With equipment deliveries confirmed and commissioning scheduled, we are moving into the final phase toward energisation and commercial operations in Q2."

Part Settlement of Company Subsidiary's Legacy Creditor Balance

The Company announces that in part settlement of a legacy creditor balance owing by the Company's subsidiary, Sloane Developments Ltd, it is now issuing 5,143,417 new ordinary shares of 0.10p par value each in the Company (the "Settlement Shares"). The Settlement Shares are issued at a price per share of 4.36p, being the prevailing market closing bid share price on 12 January 2026, for a total share consideration of £224,253.

Application will be made for the admission of the 5,143,417 new ordinary shares to trading on the LSE ("Admission") pursuant to the authorities approved by shareholders at the General Meeting on 8 July 2025. The shares will rank pari passu with the existing ordinary shares and it is expected that Admission will become effective at 8.00 a.m. on 16 January 2026.

Following Admission, the Company's issued share capital will consist of 171,529,152 ordinary shares with voting rights. The Company does not hold any ordinary shares in treasury. This figure of 171,529,152 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.

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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.