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Mast Energy Developments PLC — Investor Relations & Filings

Ticker · MAST ISIN · GB00BMBSCV12 LEI · 213800HFVHGJ9YGO9F71 IL Electricity, gas, steam and air conditioning supply
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Filings indexed 202 across all filing types
Latest filing 2026-05-21 Regulatory Filings
Country GB United Kingdom
Listing IL MAST

About Mast Energy Developments PLC

https://med.energy/

Quantum Data Energy PLC, formerly Mast Energy Developments PLC, is an energy holding company that acquires, develops, and operates a portfolio of flexible, small-scale power generation projects. The company has strategically shifted its focus to become a specialized provider of power supply for the high-demand artificial intelligence (AI) data centre market. Its core activity involves developing reserve power assets tailored to meet the significant and growing energy requirements of AI infrastructure.

Recent filings

Filing Released Lang Actions
Appointment of New Auditor
Regulatory Filings Classification · 85% confidence The document is an RNS announcement titled “Appointment of New Auditor.” It contains no financial statements or substantive accounting data, nor does it publish or attach an annual report or audit report. It is a regulatory news service announcement regarding an auditor vacancy and its forthcoming appointment. It therefore falls under the general Regulatory Filings (RNS) category as a miscellaneous regulatory announcement.
2026-05-21 English
Temporary Suspension and Amendment to Equity Raise
Share Issue/Capital Change Classification · 88% confidence The document is an RNS announcement detailing a temporary suspension of trading and, more importantly, an amendment to an equity fundraise involving the conditional issue of new ordinary shares (Stage 1 and Stage 2 Subscriptions) along with admission and total voting rights. This is a direct announcement of a new share issue and related capital change. It does not present financial statements as in an interim report, nor is it a full earnings release or management presentation. Therefore, it best fits the Share Issue/Capital Change category (SHA).
2026-04-29 English
Resignation of Auditor
Regulatory Filings Classification · 85% confidence The document is an RNS announcement informing shareholders of the unexpected resignation of the auditor (Crowe UK LLP) under section 519 of the Companies Act 2006 and outlining next steps for engagement of a new auditor. It is not the full audit report (AR) itself, nor a board change, dividend or earnings release. It is a regulatory disclosure made via the London Stock Exchange’s RNS. There is no specific category for auditor resignations, so per fallback rules it is classified as a Regulatory Filing (RNS).
2026-04-29 English
Bordesley Construction Commenced and on Schedule
Regulatory Filings Classification · 85% confidence The document is an RNS regulatory announcement from Quantum Data Energy PLC providing an operational update on the commencement and progress of construction of its Bordesley 5 MW FlexGen project. It is not a full financial report (10-K or IR), not an earnings release, call transcript, AGM material, or other specific filing type. It simply announces project status under RNS, making “Regulatory Filings” (RNS) the correct category.
2026-04-28 English
Business Update & Acceleration Capital Funding
Capital/Financing Update Classification · 85% confidence The document is a Regulatory News Service (RNS) announcement from Quantum Data Energy PLC providing an update on securing capex funding and undertaking a capital raise of £1,000,000 via new ordinary share issuance. It details the terms of the placing, Admission of new shares and changes in issued share capital, which constitutes a fundraising/capital structure update. This matches the Capital/Financing Update category (CAP).
2026-04-23 English
Block Listing Six-Month Return
Regulatory Filings Classification · 92% confidence The document is an RNS announcement concerning a block listing six-month return under UK Listing Rule 6.4.4R. It provides regulatory details of warrant allotments and is a routine regulatory filing rather than a report, earnings release, or other specified category. This fits the catch-all Regulatory Filings (RNS) category.
2026-04-07 English

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