AI Datacentre Power Supply Strategy Explainer Vid.

(Incorporated in England and Wales)

(Registration Number: 12886458)

LEI :213800HFVHGJ9YGO9F71

Share code on the LSE: QDE

ISIN: GB00BNG90H86

Dated: 25 March 2026

Quantum Data Energy PLC

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

AI Datacentre Power Supply Strategy Explainer Video

London, UK - Quantum Data Energy PLC (LSE: MAST) is pleased to announce that the Company has published a video to summarise its new AI datacentre power supply strategy 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.

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About Quantum Data Energy PLC:

Quantum Data Energy PLC (LSE: QDE) 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 QDE as a leading AI infrastructure platform on the London Stock Exchange.

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

ENDS