13 March 2026

Borders & Southern Petroleum plc

("Borders & Southern" or the "Company")

Exercise of Warrants

Borders & Southern Petroleum plc (AIM: BOR), the London based independent oil and gas exploration company with appraisal and exploration assets offshore the Falkland Islands, announces that it has received notification from Will Hodson, a Non-Executive Director, to exercise warrants over 105,263 new ordinary shares of 1 pence each in the capital of the Company ("Warrant Shares") at the exercise price of 10 pence per Warrant Share, for an aggregate cash value of £10,526.30.

Application has been made for admission of the Warrant Shares to trading on AIM ("Admission") and it is expected that Admission will occur on or around 19 March 2026. The Warrant Shares will rank pari passu with the existing Ordinary Shares of 1 pence each in the capital of the Company.

Total Voting Rights

Following Admission, the total issued share capital of the Company will consist of 879,420,674 ordinary shares each with voting rights. The Company does not hold any ordinary shares in treasury. Therefore, the total number of voting rights in the Company will be 879,420,674 and this is the figure may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change in their interest in, the share capital of the Company under the FCA's Disclosure Guidance and Transparency Rules.

For further information, please visit www.bordersandsouthern.com or contact:

Notes to Editors:

Borders & Southern Petroleum plc is an oil & gas exploration company listed on the London Stock Exchange AIM (BOR). The Company operates and has a 100% interest in three Production Licences in the South Falkland Basin covering an area of nearly 10,000 square kilometres. The Company has acquired 2,517 square kilometres of 3D seismic and drilled two exploration wells, making a significant gas condensate discovery with its first well.

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