REG - Mast Energy Dvlpmts. - AI Datacentre Power Supply JVA Completed

Mast Energy DevelopmentsAnnouncement

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RNS Number : 2991B  Mast Energy Developments PLC  30 September 2025

Mast Energy Developments PLC

(Incorporated in England and Wales)

(Registration Number: 12886458)

LEI :213800HFVHGJ9YGO9F71

Share code on the LSE: MAST

ISIN: GB00BNG90H86

('MED' or 'the Company')

 

Dated: 30 September 2025

 

MAST Energy Developments PLC

("MAST" or "MED" or the "Company")

 

MAST Bolsters 1 GW Power AI Datacentre Campus Strategy

By Completing Definitive JV Agreement with Carbon Zero Markets

 

London, UK - Mast Energy Developments PLC (LSE: MAST) is pleased to announce,
further to its previous RNS announcement dated 6 August 2025, that the Company
has executed and completed the legally binding definitive joint venture
agreement ("JVA") with Carbon Zero Markets Ltd ("CZM"). CZM is a UK company
with strong connections and a proven track-record in the energy industry in
the UK and EU (see below for more details about CZM), and an ideal partner
for MAST to bolster its growth plans. Further, MAST is encouraged by the
growing wave of international investment into UK AI infrastructure, most
recently with Nvidia announcing that the UK will have Europe's largest GPU
cluster totalling 120,000 Nvidia Blackwell GPUs by the end of 2026 in a major
boost for the UK's sovereign compute capacity. Nvidia hailed £11-billion of
total investment in the UK AI ecosystem. These latest developments underscore
the scale, urgency and economic momentum behind power supply for AI
infrastructure, and reinforce MAST's plans to deliver up to 1 GW of AI
datacentre-power campuses over the next 36 months to place the Company at the
forefront of this rapidly-expanding market.

 

Key Highlights:

·    MAST has established a clear strategy with an initial growth target
of 1 GW to be a leading provider of power supply to AI datacentres, and
powering the UK's AI revolution (read more here
(https://www.med.energy/aidatacentrepowersupply) );

·    Execution of binding definitive JVA with CZM bolsters MAST's plans to
deliver up to 1 GW of AI datacentre-power campuses over the next 36 months;

·    Under the terms of the JVA, MAST and CZM will work together and
leverage each other's strengths to seek, attract, develop, construct, and
operate power supply assets co-located to AI datacentres;

·    MAST will hold a controlling majority equity interest of 77.5% in any
SPV under the JVA, CZM will hold 22.5%, and ongoing costs will be co-funded by
MAST and CZM based on their respective shareholdings;

·    MAST will have the right to appoint two directors and CZM one
director to the board of any SPV under the JVA;

·    MAST and CZM are already in discussions with various AI datacentre
developers and owners to provide power supply;

·    London is now second only to California as the world's largest AI
datacentre hub;

·    One of the world's biggest companies, the tech giant Nvidia recently
announced that the UK will be an AI superpower as major US tech giants and
institutional investment funds pledged tens of billions of pounds worth of
investment in the UK AI ecosystem(1);

·    Nvidia also recently announced that the UK will have Europe's largest
GPU cluster totalling 120,000 Nvidia Blackwell GPU's by the end of 2026 in a
major boost for the UK's sovereign compute capacity(2);

·    Nvidia hailed £11 billion of total investment in the UK AI
ecosystem(2);

·    The biggest single investment comes from Microsoft, which has
announced a $30 billion (£22 billion) spending package in the UK - its
largest ever outside the US(1);

·    It is part of a $42 billion (£31 billion) agreement, dubbed the
"Tech Prosperity Deal", between the UK government and several US tech giants
and institutional investment funds signed during President Donald Trump's
recent unprecedented second state visit to the UK, which establishes a
favourable policy climate and signals sustained governmental support; and

·    Speaking to the BBC earlier this month, Nvidia CEO Jensen Huang said
that in the UK he was hoping that more gas turbines could be used "off the
grid so we don't burden people on the grid"(3), which is firmly in line with
MAST's business model.

 

What This Means for MAST:

·    Validates business case: The scale of investments by Nvidia,
Microsoft and others aligns with MAST's projections of rapidly increasing
demand for AI datacentre power supply;

·    Enhances partnership & customer opportunity: These large projects
and investments by hyperscalers and infrastructure investors open doors for
MAST to partner with or supply to major players in this space;

·    Favourable policy & regulatory tailwinds: National and
international momentum behind AI growth and infrastructure reduces execution
risk and improves the regulatory environment; and

·    Investor confidence: The alignment of MAST's strategy with
high-profile investment and governmental initiatives offers greater visibility
of growth opportunity.

 

Reaffirming MAST's Strategy:

·    A pipeline to develop, acquire, construct and operate approximately 1
GW of AI datacentre power campuses in the UK over the next 36 months;

·    Modular delivery in blocks of 25-50 MW enabling flexibility,
scalability, and speed; and

·    Phase 1 targeting ~100 MW of "shovel-ready" sites within 12 months;
Phase 2 building out 300+ MW within 12-36 months.

 

Pieter Krügel, Chief Executive Officer of MAST Energy, said: "We are
delighted with the execution and completion of the binding definitive JVA with
Carbon Zero Markets, which shows again that MAST is able to attract quality
business partners to unlock and expedite value creation, and bolsters our
plans to deliver up to 1 GW of AI datacentre-power campuses. We welcome the
ongoing and growing strong external signals, most recently from giants like
Microsoft and Nvidia, and the policy momentum created by the recent UK-US tech
deal. These are not merely headlines: they confirm what we at MAST have seen
on the ground - that power supply for AI datacentres is moving from
opportunity to imperative. With our 1 GW target over 36 months, modular
deployment model, and unique capabilities in delivering reliable power in
constrained locations, we believe MAST is exceptionally well positioned to
play a central role in powering the UK's AI future. We look forward to
accelerating execution and delivering value for all stakeholders."

 

Forward Outlook:

·    Developing and acquiring power supply sites co-located to AI
datacentres in key locations throughout the UK;

·    Advancing commercial discussions with hyperscaler and AI datacentre
developers;

·    Exploring funding partnerships, including domestic and international
investment funds; and

·    Delivering Phase 1 (~100 MW) of shovel-ready power campuses.

 

About MAST Energy Developments PLC:

MAST Energy Developments PLC (LSE: MAST) is a UK-based developer, operator and
owner of flexible generation power assets. 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 MAST as a leading AI
infrastructure platform on the London Stock Exchange (read more here
(https://www.med.energy/aidatacentrepowersupply) ).

 

About Carbon Zero Markets:

Carbon Zero Markets were co-founded by Bruce Brown and Mike Ridler, each
bringing over 20 years of relevant experience to the business. CZM are experts
in the decarbonisation space, working end-to-end, from helping generators gain
the most from their renewable energy assets to assisting corporations in
meeting their sustainability goals. With established access to renewable
commodity markets in the UK and Europe, CZM are excellently positioned to
deal with a range of environmental commodities, doing their part to help funds
flow into technologies that will be key to a carbon-zero world. For more
details, visit CZM's website here - https://c-zeromarkets.com
(https://c-zeromarkets.com/) .

 

Stay up to date with MED's latest news and updates by joining our emailing
list and social media channels, as follows:

 

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

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

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

MED X (formerly Twitter) handle - @mastplc

 

Exercise of Cash Warrants

Capitalised terms used in this part of this announcement have the same meaning
as those given to them in the Company's RNS announcement dated 23 May 2025
unless otherwise defined.

 

MED has received notice of the exercise and the associated cash proceeds of
Cash Warrants, issued pursuant to the Equity Fundraise announced on 11 July
2025, for a total of 800,000 ordinary shares in the Company of 4 pence per
ordinary share.

 

Application will be made for the admission of the 800,000 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 1 October 2025.

 

Following Admission of the 800,000 new ordinary shares, the Company's issued
share capital will consist of 31,765,927 ordinary shares with voting rights.
MED does not hold any ordinary shares in treasury. This figure of 31,765,927
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 of the 800,000 new ordinary shares, the beneficial
interest in the issued share capital of the Company of Paul Venter,
non-executive director and chairman of the Company, will resultingly change to
6.17%. Further, following Admission, the beneficial holding of Riverfort
Global Opportunities PCC Ltd will resultingly change to 5.37%.

 

Change of Registered Office Address:

The Company also announces that it has moved its registered office to 6th
Floor, 99 Gresham Street, London, England EC2V 7NG.

 

Forward-Looking Statements:

This RNS announcement contains forward-looking statements. These statements
involve risks and uncertainties that could cause actual results to differ
materially from those expressed or implied. No statement in this announcement
is intended as a profit forecast, and forward-looking statements speak only as
of the date of this announcement. The Company undertakes no obligation to
update such statements except as required by law and regulations.

 

References:

1:         https://www.bbc.co.uk/news/articles/c7016ljre03o
(https://www.bbc.co.uk/news/articles/c7016ljre03o)

2:
https://www.itpro.com/infrastructure/uk-to-host-largest-european-gpu-cluster-under-gbp11-billion-nvidia-investment-plans
(https://www.itpro.com/infrastructure/uk-to-host-largest-european-gpu-cluster-under-gbp11-billion-nvidia-investment-plans)

3:         https://www.bbc.co.uk/news/articles/ckg2ldpl9leo
(https://www.bbc.co.uk/news/articles/ckg2ldpl9leo)

 

 

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.

 

 Pieter Krügel      info@med.energy (mailto:info@med.energy)  Mast Energy           CEO

                                                              Developments PLC
 Guy Wheatley, CFA  +44 (0)74 9398 9014                       Fortified Securities  Corporate Broker

 

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