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

11 June 2026

Prospex Energy plc

("Prospex" or the "Company")

AGM to be Broadcast via IMC

Prospex Energy plc (AIM: PXEN), the AIM quoted investment company focused on European gas and power projects, is pleased to announce that the company will broadcast its Annual General Meeting ("AGM") via Investor Meet Company on 23 June 2026 at 10:00 BST.

In order to ensure that shareholders are able to follow the proceedings of the AGM without attending in person, the Company will provide access online via the Investor Meet Company platform. However, please note that shareholders will not be able to vote online at the AGM via the platform and are therefore requested to submit their votes via proxy, as early as possible.

Shareholders are invited to submit any questions for the Board to consider. Questions can be pre submitted ahead of the AGM via the Investor Meet Company Platform up until 22 June 2026, 09:00 BST, or submitted at any time during the AGM itself.

Shareholders that wish to attend the AGM remotely should register for the event in advance by using the following link:

https://www.investormeetcompany.com/prospex-energy-plc/register-investor

Investors who already follow PROSPEX ENERGY PLC on the Investor Meet Company platform will automatically be invited.

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

Notes

Prospex Energy plc is an AIM-quoted investing company focused on high-impact onshore and shallow offshore European opportunities with short timelines to production.  The Company's strategy is to acquire undervalued projects with multiple, tangible value trigger points that can be realised within 12 months of acquisition and then apply low-cost re-evaluation techniques to identify and de-risk prospects.  The Company will rapidly scale up gas production in the short term to generate internal revenue, which can then be deployed to develop the asset base and further increase production.