Broker Warrant Exercise

(Registration Number: 12886458)

Share code on the LSE: MAST

('MED' or 'the Company')

Dated: 25 July 2025

MAST Energy Developments PLC

Exercise of Historic Broker Warrants, Issue of Equity & TVR

Mast Energy Developments PLC ("MED" or "the Company"), the UK-based multi-asset owner, developer, and operator in the rapidly growing Flexible Generation Power market, announces that it has received notices of exercise for a total of 243,750 new ordinary MED shares at the exercise price of £0.08 (the "Broker Warrant Shares"). The broker warrants were historically issued to nominees of Novum Securities Limited on 29 May 2024, the details of which are contained in the Company's RNS announcement dated 7 May 2024. The price and number of warrants were re-stated as part of the Company's recent share capital consolidation and re-admission of its ordinary share capital, effective 14 July 2025.

Total Voting Rights

Application will be made for the admission of the 243,750 Broker Warrant Shares to trading on the LSE ("Admission") pursuant to the authorities approved by shareholders at the General Meeting held 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 30 July 2025.

Following Admission, the Company's issued share capital will consist of 13,248,927 ordinary shares with voting rights. MED does not hold any ordinary shares in treasury. This figure of 13,248,927 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.

Following Admission, the beneficial holding of Paul Venter, non-executive director and chairman of the Company, will change from 15.06% to 14.79% interest in the issued share capital of the Company.

MED general enquiries - https://www.med.energy/contact

MED email alerts - https://www.med.energy/rnsannoucements-1

MED LinkedIn page - https://uk.linkedin.com/company/mast-energy-developments-plc

MED X (formerly Twitter) handle - @mastplc