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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 204 across all filing types
Latest filing 2026-06-08 Report Publication Anno…
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
Notice of AGM
Report Publication Announcement Classification · 85% confidence The document is a short announcement (under 5,000 characters) stating that the Notice of Annual General Meeting will be dispatched and is available on the company’s website. It does not contain the actual AGM materials or financial data, but merely announces the publication and availability of the notice. Under the “menu vs meal” rule, this is a report publication announcement rather than the report itself.
2026-06-08 English
Appointment of New Auditor Finalised
Regulatory Filings Classification · 90% confidence The document is an RNS announcement informing shareholders of the appointment of a new statutory auditor under the Companies Act. It does not contain any financial statements, audit results, or voting details, nor is it a proxy, dividend notice, or management change at the board level. It is a general regulatory news announcement falling outside the specific categories, so it is classified as a Regulatory Filing (RNS).
2026-06-02 English
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

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