Mosman Oil and Gas Limited (AIM: MSMN), the helium, hydrogen and hydrocarbon company, confirms it has today raised £1,667,500 (before expenses) by way of a placing of 7,411,111,110 new ordinary shares (the “Placing Shares”) at a price of 0.0225p per share (the “Placing Price”) (the “Placing”).

The Placing was conducted by SP Angel Corporate Finance LLP and CMC Markets UK Plc, acting as Joint Brokersto the Company.

In addition to the Placing, as the Company greatly values the support of its retail shareholders, Mosman also intends to offer its existing eligible retail shareholders the opportunity to participate in a retail offer of new ordinary shares at the Placing Price for up to £500,000 (the “Retail Offer”).

The Company will release a separate announcement regarding the Retail Offer and its terms shortly. For the avoidance of doubt, the Placing is separate from and does not form part of the Retail Offer.

Progressing Helium Projects

Mosman continues to advance its portfolio of helium projects in the United States, with Sagebrush and Coyote Wash in Colorado representing the Company’s key near-term development priorities.

Funds raised from the Placing, together with the current cash balance of approximately £1.2 million, will be used to continue progressing exploration activity towards establishing the Sagebrush and Coyote Wash projects as drill-ready. The net proceeds of the Placing will be used for:

Carl Dumbrell, Chairman of Mosman Oil and Gas, commented: “This successful Placing provides the capital needed to drive the next phase of development across our world-class helium assets in Colorado. The coming quarters will be an exceptionally active period for Mosman as we complete 3D seismic at Sagebrush, progress the Coyote Wash resource validation and prepare for and conduct  extended well testing. We thank our investors for their continued support and look forward to delivering material progress and value creation through Q4 and into 2026.”

Admission to AIM and Total Voting Rights

The Placing is conditional, inter alia, upon the Placing Shares being admitted to trading on AIM. Application has been made to the London Stock Exchange for the Placing Shares, which will rank pari passu with the Company’s existing issued ordinary shares, to be admitted to trading on AIM and dealings are expected to commence at 8:00 a.m. on or about 23 October 2025.

Following the issue of the Placing Shares, the Company’s total voting rights will comprise 30,392,632,772 Ordinary Shares of no par value, and the Company does not hold any shares in treasury. The above figure may therefore be used by shareholders as the denominator for the calculations by which they will determine whether they are required to notify their interest in, or a change to their interest in, the share capital of the Company under the Companies’ Articles.

Correction to AGM Voting Date

Further to the Company’s recent Notice of Annual General Meeting (“AGM”), Mosman wishes to correct the voting deadline and time for receipt of Forms of Instruction in respect of the AGM, which will be held in Sydney on 10 October 2025.

The second paragraph of the AGM Notice should now read as follows:

“Completed Forms of Instruction must be lodged with the Depositary at The Pavilions, Bridgewater Road, Bristol BS99 6ZY, no later than 2:00 p.m. (London time) on 5 November 2025, being 1:00 a.m. AEDT (Sydney time) on 6 November 2025, or submitted electronically through the CREST voting system in accordance with the instructions set out on the Form of Instruction.

All other shareholders who hold shares directly in the Company’s register and not through CREST should either attend the Meeting in person or ensure that their completed Proxy Forms are received by the Company no later than 2:00 p.m. (London time) on 5 November 2025, being 1:00 a.m. AEDT (Sydney time) on 6 November 2025.”

The Company is also is pleased to announce an offer to its existing retail shareholders CMC CapX (the “Retail Offer“) of new ordinary shares of NPV each in the capital of the Company (the “Retail Offer Shares“).

In addition to the Retail Offer, the Company is also conducting a placing of new ordinary shares (the “Placing Shares” and together with the Retail Offer Shares, the “Fundraising Shares“) (the “Placing“). The price of the Fundraising Shares is 0.0225p (the “Issue Price“).

A separate announcement has been made regarding the Placing and its terms. For the avoidance of doubt, the Retail Offer is separate from and does not form part of the Placing.

The Retail Offer and the Placing are conditional on, the Fundraising Shares being admitted to trading on the AIM market operated by London Stock Exchange plc (“Admission“). Admission of the Placing Shares is expected to take place at 8.00 a.m. on 23rd October 2025. Admission of the Retail Offer Shares is expected to take place at 8.00 a.m. on 27th October 2025. Completion of the Retail Offer is conditional, inter alia, upon the completion of the Placing.

The Retail Offer

The Company values its retail shareholder base and believes that it is appropriate to provide its existing retail shareholders in the United Kingdom the opportunity to participate in the Retail Offer via participating financial intermediaries.

Therefore, the Company is making the Retail Offer open to Eligible Shareholders (as defined below) in the United Kingdom via CMC CapX following release of this announcement.

To be eligible to participate in the Retail Offer, applicants must be: (i) a retail shareholder of the Company on or prior to the release of this announcement; and (ii) resident in the United Kingdom; and (iii) a customer of a participating intermediary (such persons being “Eligible Shareholders“).

The Retail Offer is expected to close by 4pm on 21st October 2025, but the Company reserves the right to close it earlier. Eligible Shareholders should note that financial intermediaries may also have earlier closing times.

Expected timetable
Retail Offer opens 9am on 17th October
Retail Offer closes 4pm on 21st October
Announcement of the results of the Retail Offer 7am on 22nd October
Admission of the Retail Offer Shares and crediting of CREST accounts 8.00 am on or around 27th October 2025

The dates and times specified above are subject to change. In particular, the Company may (with the prior approval of CMC Markets UK plc) bring forward, extend or postpone the closing time and date for the Retail Offer. In the event that a date or time is changed, the Company will notify financial intermediaries who have applied for Retail Offer Shares on behalf of retail investors by post, by electronic mail or by the publication of a notice through a Regulatory Information Service.

Other retail brokers or wealth managers which, in each case, are investment professionals (within the meaning of article 19 of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005), wishing to participate in the Retail Offer on behalf of Eligible Shareholder, should contact CMC CapX via email to capx@cmcmarkets.com or by telephone on +44 (0) 20 3003 8632.

Eligible Shareholders wishing to subscribe for Retail Offer Shares should contact their broker or wealth manager who will confirm if they are participating in the Retail Offer.

There is a minimum subscription of £250 per investor. The terms and conditions on which investors subscribe will be provided by the relevant financial intermediaries including relevant commission or fee charges.

The Company reserves the right to scale back any order under the Retail Offer at its discretion. The Company reserves the right to reject any application for subscription under the Retail Offer without giving any reason for such rejection.

It is vital to note that once an application for Retail Offer Shares has been made and accepted via an intermediary, it is irrevocable and cannot be withdrawn.

The Retail Offer Shares will, when issued, be credited as fully paid and will rank pari passu in all respects with existing ordinary shares in the capital of the Company (“Ordinary Shares“) including the right to receive all dividends and other distributions declared, made or paid after their date of issue.

The Retail Offer is an offer to subscribe for transferable securities, the terms of which ensure that the Company is exempt from the requirement to issue a prospectus under Regulation (EU) 2017/1129 as it forms part of UK law by virtue of the European Union (Withdrawal) Act 2018 as amended (“EUWA“). It is a term of the Retail Offer that the aggregate total consideration payable for the Retail Offer Shares will not exceed £500,000 (or the equivalent in Euros). The exemption from the requirement to publish a prospectus in section 86(1)(e) of the Financial Services and Markets Act 2000 (as amended), will apply to the Retail Offer. As such, there is no need for publication of a prospectus pursuant to the Prospectus Regulation Rules of the FCA, or for approval of the same by the FCA.

The Retail Offer is not being made into any jurisdiction other than the United Kingdom.

No offering document, prospectus or admission document has been or will be prepared or submitted to be approved by the FCA (or any other authority) in relation to the Retail Offer and investors’ commitments will be made solely on the basis of the information contained in this announcement and information that has been published by or on behalf of the Company prior to the date of this announcement by notification to a Regulatory Information Service in accordance with the Disclosure Guidance and Transparency Rules, the AIM Rules for Companies, the Market Abuse Regulation (EU Regulation No. 596/2014) as it forms part of United Kingdom law by virtue of EUWA.

Investors should make their own investigations into the merits of an investment in the Company. Nothing in this announcement amounts to a recommendation to invest in the Company or amounts to investment, taxation or legal advice. 

It should be noted that a subscription for Retail Offer Shares and investment in the Company carries a number of risks. Investors should take independent advice from a person experienced in advising on investment in securities such as the Retail Offer Shares if they are in any doubt. 

An investment in the Company will place capital at risk. The value of investments, and any income, can go down as well as up, so investors could get back less than the amount invested.

Neither past performance nor any forecasts should be considered a reliable indicator of future results.

Market Abuse Regulation (MAR) Disclosure

The information contained within this announcement is deemed by the Company to constitute inside information as stipulated under the Market Abuse Regulations (EU) No. 596/2014 (‘MAR’) which has been incorporated into UK law by the European Union (Withdrawal) Act 2018. Upon publication via Regulatory Information Service (‘RIS’), this information is now in the public domain

Enquiries:

Mosman Oil & Gas Limited

Carl Dumbrell

Chairman

 

 NOMAD and Joint Broker

SP Angel Corporate Finance LLP

Stuart Gledhill / Richard Hail / Adam Cowl

+44 (0) 20 3470 0470
Brand Communications

Alan Green

Tel: +44 (0) 7976 431608

 Joint Broker

CMC Markets UK Plc

Douglas Crippen

+44 (0) 020 3003 8632

Updates on the Company’s activities are regularly posted on its website: www.mosmanoilandgas.com

Notes to editors

Mosman (AIM: MSMN) is a helium, hydrogen and hydrocarbon exploration, development, and production company with projects in the US and Australia. Mosman’s strategic objectives remain consistent: to identify opportunities which will provide operating cash flow and have development upside, in conjunction with progressing exploration. The Company has several projects in the US, in addition to royalty interests in Australia.

Proposed Change of Name and Ticker
At the forthcoming Annual General Meeting on 10 November 2025, shareholders will be asked to approve the proposed change of the Company’s name to Quantum Helium Limited, with a proposed new AIM ticker QHE. The change, once approved and registered with the Australian Securities and Investments Commission (ASIC), will reflect Mosman’s strategic focus on helium exploration and development. A further announcement will be made regarding the timetable for the proposed change in due course.

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