National Storage Mechanism | Additional information

7 November 2023

Sound Energy plc

("Sound Energy" or the "Company")

Change of Nominated Adviser

Sound Energy (AIM: SOU), the AIM listed transition energy company, announces that, following the completion of the all-share merger between Cavendish Securities plc (previously named Cenkos Securities plc) and Cavendish Financial plc (previously named finnCap Group plc), and as a consequence of internal reorganisation within the Cavendish Group, the Company has changed its Nominated Adviser from Cavendish Securities plc to Cavendish Capital Markets Limited.

Flagstaff Strategic and Investor Communications

Tim Thompson

Mark Edwards

Alison Allfrey

sound@flagstaffcomms.com

Tel: +44 (0)20 129 1474

Sound Energy

Graham Lyon, Executive Chairman

chairman@soundenergyplc.com

Cavendish Capital Markets - Nominated Adviser

Ben Jeynes

Peter Lynch

Tel: +44 (0)20 7220 0500

SP Angel Corporate Finance LLP - Broker

Richard Hail

Tel: +44 (0)7789 865 095

Gneiss Energy Limited - Financial Adviser

Jon Fitzpatrick

Paul Weidman

Doug Rycroft

Tel: +44 (0)20 3983 9263

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