THIS ANNOUNCEMENT AND THE INFORMATION CONTAINED HEREIN (TOGETHER THIS "ANNOUNCEMENT"), IS RESTRICTED AND IS NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION, IN WHOLE OR IN PART, IN OR INTO THE UNITED STATES OF AMERICA, CANADA, AUSTRALIA, JAPAN, THE REPUBLIC OF SOUTH AFRICA OR ANY OTHER JURISDICTION IN WHICH SUCH RELEASE, PUBLICATION OR DISTRIBUTION WOULD BE UNLAWFUL.

THIS ANNOUNCEMENT CONTAINS INSIDE INFORMATION FOR THE PURPOSES OF THE MARKET ABUSE REGULATION (EU) 596 / 2014 WHICH FORMS PART OF UK LAW BY VIRTUE OF THE EUROPEAN UNION (WITHDRAWAL) ACT 2018 ("UK MAR"). IN ADDITION, MARKET SOUNDINGS (AS DEFINED IN UK MAR) WERE TAKEN IN RESPECT OF CERTAIN OF THE MATTERS CONTAINED IN THIS ANNOUNCEMENT, WITH THE RESULT THAT CERTAIN PERSONS BECAME AWARE OF SUCH INSIDE INFORMATION, AS PERMITTED BY UK MAR. UPON THE PUBLICATION OF THIS ANNOUNCEMENT, THIS INSIDE INFORMATION IS NOW CONSIDERED TO BE IN THE PUBLIC DOMAIN AND SUCH PERSONS SHALL THEREFORE CEASE TO BE IN POSSESSION OF INSIDE INFORMATION.

Prospex Energy PLC / Index: AIM / Epic: PXEN / Sector: Oil and Gas

25 June 2025

Prospex Energy PLC

("Prospex" or the "Company")

Result of oversubscribed Placing and Subscription

Prospex Energy PLC (AIM: PXEN) is pleased to announce that further to the announcement released at 5.08 pm on 24 June 2025 (the "Launch Announcement"), the Placing has now closed and the Bookbuild has been successfully concluded. Terms defined in the Launch Announcement have the same meanings in this announcement.

The gross proceeds from the Placing and Subscription increased significantly to £1,031,650 through the issue of, in aggregate, 22,925,555 new Ordinary Shares at the Issue Price of 4.5 pence per new Ordinary Share.

The Company is currently running the Retail Offer, which is open to existing shareholders via the Winterflood Retail Access Platform.  The Retail Offer closes at 4.30pm, on 27 June 2025 and further details of the Retail Offer can be found in the Retail Offer announcement released at 7.01 am on 25 June 2025. 

The proceeds from the Placing and Subscription, together with the proceeds of the Retail Offer, will be allocated for the cash call for the Viura-1B well to fund the workover to resume production at the Viura field and to cover ordering long-lead items for the 2026 drilling campaign.

Director participation

The following Directors and PDMR have participated in the Placing for a total of 1,444,444 new Ordinary Shares at the Issue Price as set out below:

Alasdair Buchanan, the Director who is not participating in the Fundraising and is therefore classified as an independent director, is satisfied that the terms of the participation by Heyco Energy and the other three Directors of the Company are fair and reasonable, having consulted with the Company's nominated adviser, Strand Hanson Limited, insofar as the Company's shareholders are concerned in accordance with AIM Rule 13 (Related Party Transactions).

Admission to AIM

Application will be made to the London Stock Exchange plc for the admission of the Placing and Subscription Shares to trading on AIM ("Admission") and it is expected that Admission will occur at 8.00 a.m. on 3 July 2025 or such later time and/or date as VSA Capital, H&P and the Company may agree (being in any event no later than 8.00 a.m. on 31 July 2025).

A further announcement will be made in due course in relation to the total number of voting rights of the Company from the new Ordinary Shares issued pursuant to the Retail Offer, which it is intended will admit to trading on the same day as the Placing Shares and the Subscription Shares.

* * ENDS * *

For further information visit www.prospex.energy or contact the following:

IMPORTANT NOTICES

Notice to Distributors

This Announcement is not for publication or distribution, directly or indirectly, in or into the United States of America (including its territories and possessions, any state of the United States and the district of Columbia (collectively, the "United States").  This Announcement is not an offer of securities for sale into the United States.  The securities referred to herein have not been and will not be registered under the U.S. Securities Act of 1933, as amended, and may not be offered or sold in the United States, except pursuant to an applicable exemption from registration.  No public offering of securities is being made in the United States.

UK Product Governance Requirements

Solely for the purposes of the product governance requirements contained within chapter 3 of the FCA Handbook Product Intervention and Product Governance Sourcebook (the "UK Product Governance Requirements") and disclaiming all and any liability, whether arising in tort, contract or otherwise, which any "manufacturer" (for the purposes of the UK Product Governance Requirements) may otherwise have with respect thereto, the Placing Shares have been subject to a product approval process, which has determined that the Placing Shares are: (i) compatible with an end target market of retail investors and investors who meet the criteria of professional clients and eligible counterparties, each as defined in chapter 3 of the FCA Handbook Conduct of Business Sourcebook ("COBS"); and (ii) eligible for distribution through all permitted distribution channels (the "UK Target Market Assessment"). Notwithstanding the UK Target Market Assessment, distributors should note that: the price of the Placing Shares may decline and investors could lose all or part of their investment; the Placing Shares offer no guaranteed income and no capital protection; and an investment in Placing Shares is compatible only with investors who do not need a guaranteed income or capital protection, who (either alone or in conjunction with an appropriate financial or other adviser) are capable of evaluating the merits and risks of such an investment and who have sufficient resources to be able to bear any losses that may result therefrom. The UK Target Market Assessment is without prejudice to the requirements of any contractual, legal or regulatory selling restrictions in relation to the Placing. Furthermore, it is noted that, notwithstanding the UK Target Market Assessment, the Bookrunner will only procure investors who meet the criteria of professional clients and eligible counterparties.

For the avoidance of doubt, the UK Target Market Assessment does not constitute: (a) an assessment of suitability or appropriateness for the purposes of chapters 9A or 10A respectively of the COBS; or (b) a recommendation to any investor or group of investors to invest in, or purchase, or take any other action whatsoever with respect to Placing Shares. Each distributor is responsible for undertaking its own target market assessment in respect of the shares and determining appropriate distribution channels.

EU Product Governance Requirements

Solely for the purposes of the product governance requirements contained within: (a) EU Directive 2014/65/EU on markets in financial instruments, as amended and as this is applied in the United Kingdom ("MiFID II"); (b) Articles 9 and 10 of Commission Delegated Directive (EU) 2017/593 supplementing MiFID II and Regulation (EU) No 600/2014 of the European Parliament, as they form part of UK law by virtue of the European Union (Withdrawal) Act 2018, as amended; and (c) local implementing measures (together, the "MiFID II Product Governance Requirements"), and disclaiming all and any liability, whether arising in tort, contract or otherwise, which any "manufacturer" (for the purposes of the MiFID II Product Governance Requirements) may otherwise have with respect thereto, the Ordinary Shares have been subject to a product approval process, which has determined that such securities are: (i) compatible with an end target market of retail investors who do not need a guaranteed income or capital protection and investors who meet the criteria of professional clients and eligible counterparties, each as defined in MiFID II; and (ii) eligible for distribution through all distribution channels as are permitted by MiFID II (the "Target Market Assessment"). The Ordinary Shares are not appropriate for a target market of investors whose objectives include no capital loss.  Notwithstanding the Target Market Assessment, distributors should note that: the price of the Ordinary Shares may decline and investors could lose all or part of their investment; the Ordinary Shares offer no guaranteed income and no capital protection; and an investment in the Ordinary Shares is compatible only with investors who do not need a guaranteed income or capital projection, who (either alone or in conjunction with an appropriate financial or other adviser) are capable of evaluating the merits and risks of such an investment and who have sufficient resources to be able to bear any losses that may result therefrom. The Target Market Assessment is without prejudice to the requirements of any contractual, legal or regulatory selling restrictions in relation to the Placing. Furthermore, it is noted that, notwithstanding the Target Market Assessment, VSA Capital Limited ("VSA") and Hannam & Partners Limited ("H&P") will only procure investors who meet the criteria of professional clients and eligible counterparties. For the avoidance of doubt, the Target Market Assessment does not constitute: (a) an assessment of suitability or appropriateness for the purposes of MiFID II; or (b) a recommendation to any investor or group of investors to invest in, or purchase, or take any other action whatsoever with respect to the Ordinary Shares. Each distributor is responsible for undertaking its own target market assessment in respect of the shares and determining appropriate distribution channels.

Forward Looking Statements

This Announcement includes statements that are, or may be deemed to be, "forward-looking statements". These forward-looking statements can be identified by the use of forward-looking terminology, including the terms "believes", "estimates", "plans", "anticipates", "targets", "aims", "continues", "expects", "intends", "hopes", "may", "will", "would", "could" or "should" or, in each case, their negative or other variations or comparable terminology. These forward-looking statements include matters that are not facts. They appear in a number of places throughout this Announcement and include statements regarding the Directors' beliefs or current expectations. By their nature, forward-looking statements involve risk and uncertainty because they relate to future events and circumstances. Investors should not place undue reliance on forward-looking statements, which speak only as of the date of this Announcement.

Notice to overseas persons

This Announcement does not constitute, or form part of, a prospectus relating to the Company, nor does it constitute or contain any invitation or offer to any person, or any public offer, to subscribe for, purchase or otherwise acquire any shares in the Company or advise persons to do so in any jurisdiction, nor shall it, or any part of it form the basis of or be relied on in connection with any contract or as an inducement to enter into any contract or commitment with the Company.

This Announcement is not for release, publication or distribution, in whole or in part, directly or indirectly, in or into the United States, Australia, Canada, Japan or the Republic of South Africa or any jurisdiction into which the publication or distribution would be unlawful. This Announcement is for information purposes only and does not constitute an offer to sell or issue or the solicitation of an offer to buy or acquire shares in the capital of the Company in the United States, Australia, Canada, Japan,  the Republic of South Africa or any jurisdiction in which such offer or solicitation would be unlawful or require preparation of any prospectus or other offer documentation or would be unlawful prior to registration, exemption from registration or qualification under the securities laws of any such jurisdiction.  Persons into whose possession this Announcement comes are required by the Company to inform themselves about, and to observe, such restrictions.

General

Neither the content of the Company's website (or any other website) nor the content of any website accessible from hyperlinks on the Company's website (or any other website) or any previous Announcement made by the Company is incorporated into, or forms part of, this announcement.

This Announcement has been issued by, and is the sole responsibility of, the Company. 

Strand Hanson Limited ("Strand Hanson"), which is authorised and regulated by the FCA in the United Kingdom, is acting as Nominated Adviser to the Company in connection with the Placing and Subscription. Strand Hanson will not be responsible for providing advice to any other person in connection with the Placing, the Subscription or any acquisition of shares in the Company. Strand Hanson has not authorised the contents of, or any part of, this announcement, no representation or warranty, express or implied, is made by Strand Hanson in respect of such contents, and no liability whatsoever is accepted by Strand Hanson for the accuracy of any information or opinions contained in this Announcement or for the omission of any material information, save that nothing shall limit the liability of Strand Hanson for its own fraud. Strand Hanson's responsibilities as the Company's nominated adviser under the AIM Rules for Nominated Advisers are owed solely to the London Stock Exchange and are not owed to the Company or to any Director or to any other person.

VSA Capital and H&P, which are authorised and regulated by the FCA in the United Kingdom, are acting as joint Brokers to the Company in connection with the Placing and the Subscription. Neither VSA Capital nor H&P will be responsible to any person other than the Company for providing the protections afforded to their clients or for providing advice to any other person in connection with the Placing, the Subscription or any acquisition of shares in the Company.  Neither VSA Capital nor H&P are making any representation or warranty, express or implied, as to the contents of this Announcement. Neither VSA Capital nor H&P have authorised the contents of, or any part of, this Announcement, and no liability whatsoever is accepted by them for the accuracy of any information, or opinions contained in this Announcement or for the omission of any material information, save that nothing shall limit the liability of VSA Capital or H&P for their own fraud. 

No statement in this Announcement is intended to be a profit forecast and no statement in this Announcement should be interpreted to mean that the earnings per share of the Company for the current or future financial years would necessarily match or exceed the historical published earnings per share of the Company.

This Announcement does not constitute a recommendation concerning any investor's investment decision with respect to the Placing. Each investor or prospective investor should conduct his, her or its own investigation, analysis and evaluation of the business and data described in this Announcement and publicly available information.

The new Ordinary Shares will not be admitted to trading on any stock exchange other than the AIM market of the London Stock Exchange.

The price and value of securities can go down as well as up. Past performance is not a guide to future performance.