27 July 2026

Union Jack Oil plc

("Union Jack" or the "Company")

Requisitioned General Meeting

Posting of Circular

Notice of Reconvened AGM

Union Jack Oil plc (AIM: UJO, OTCQB: UJOGF) announces that, following the receipt of a requisition notice dated 7 July 2026 (the "Notice") from shareholders (the "Requisitioners") holding 20,650,096 ordinary shares in the Company representing 14.09% of the total voting rights, the requisitioned general meeting ("Requisitioned GM" or "Requisition", as the context permits) will be held at 11:00 a.m. on 24 August 2026 at the offices of Keystone Law at 48 Chancery Lane, London WC2A 1JF.

The Company will today post a circular to shareholders (the "Circular") convening the Requisitioned GM and outlining the unanimous recommendation by the Company's board of directors ("Board") to vote AGAINST all of the resolutions to be proposed at the Requisitioned GM. The Board believes that the Requisition is misguided, ill-timed and destined to lead to a destruction in value for the Company's shareholders. The Board further believes that by proposing the Resolutions just six days after the announcement of the all share offer by Reabold Resources plc (the "Offer"), the Requisitioners are simply being opportunistic by seeking to replace the Board during the Offer process without providing the Company's shareholders with the opportunity to realise a control premium. A copy of the Circular will be available on the Company's website.

Reconvened AGM

Further to the announcement dated 7 July 2026, the Company will also reconvene the adjourned Annual General Meeting ("Reconvened AGM") at 12:00 p.m. on 24 August 2026 (or as soon thereafter as the Requisitioned GM has concluded), also at the offices of Keystone Law at 48 Chancery Lane, London WC2A 1JF. The Reconvened AGM is a continuation of the Annual General Meeting ("AGM") convened pursuant to the notice of AGM dated 22 May 2026 (the "AGM Notice") which is set out on pages 81 and 82 of the Company's Annual Report for the year ended 31 December 2025. A copy of this announcement will be posted to shareholders today, together with the Circular.

The business to be transacted at the Reconvened AGM will be the same as that set out in the AGM Notice and no new resolutions will be proposed, except in the case of Resolutions 4 and 6 as Graham Bull and John Americanos have since ceased to hold office as directors of the Company. Accordingly, Resolutions 4 and 6, which proposed the re-election of Graham Bull and John Americanos as directors have become inapplicable and will not be put to the Reconvened AGM. Any proxy appointments or voting instructions received in respect of Resolutions 4 and 6 will not be counted. All other resolutions remain unchanged. A resolution proposing the appointment of John Americanos to the Board of the Company will be included in the resolutions put to shareholders at the Requisitioned GM.

Other than in respect of Resolution 4 and 6, proxy votes validly submitted in respect of the AGM will remain valid for the Reconvened AGM and will be counted unless they are validly revoked or amended. Proxy forms are not automatically being reissued to shareholders in connection with the Reconvened AGM. Shareholders who have already submitted a proxy form and who wish to change their voting instructions may do so by contacting Computershare Investor Services PLC on 0370 702 0000 and a replacement form will be provided upon request. Where a shareholder submits a new valid proxy appointment before the applicable deadline, the new appointment will supersede any earlier proxy appointment.

Shareholders who have not yet submitted a proxy appointment may do so by 12:00 p.m. on 20 August 2026, or, if applicable, by using the CREST proxy appointment service in accordance with the procedures described in the AGM Notice.

Copies of the Circular and AGM Notice will be available on the Company's website at: https://unionjackoil.com.

For further information, please contact: