The information contained within this announcement is deemed to constitute inside information as stipulated under the Market Abuse Regulation ("MAR") (EU) No. 596/2014, as incorporated into UK law by the European Union (Withdrawal) Act 2018. Upon the publication of this announcement, this inside information is now considered to be in the public domain.

8 December 2025

Sound Energy PLC

("Sound Energy", the "Company" and together with its subsidiary undertakings the "Group")

First Commissioning Gas at the Tendrara Gas Development

Sound Energy PLC, (AIM:SOU) the AIM listed transition energy company, is pleased to announce that it has received notification from the operator of the Tendrara Production Concession, Mana Energy Ltd (55%), of the commencement of the initial commissioning activities for the TE-5 Horst development project in the Tendrara Production Concession that first gas has entered the gas gathering system ("GGS") in preparation for long term gas production into the micro-LNG plant.  Sound Energy retains a 20% equity interest in the Tendrara Production Concession.

The final required component of the gas gathering system, which is being constructed by Mana Energy Ltd, the SCADA (Supervisory Control and Data Acquisition) computer, was delivered on 28 November 2025. After installation, gas was safely and successfully flowed from the TE-6 production well, to commence the commissioning of the GGS.

The micro-LNG Plant has been designed, is being constructed and will be operated and maintained by Italfluid Geoenergy S.r.l. ("ITF") with guarantees for plant operability and delivery of LNG to the off-taker, Afriquia Gaz, a leading energy distributor in Morocco. A binding gas sales agreement and associated funding are in place with Afriquia Gaz, with a ten-year commitment from first gas to purchase a contractual quantity of one hundred million normal cubic metres per annum. This is in the context of a take or pay agreement priced in the range of $6-$8.346 per MMBtu which will be determined using an indexed formula which applies a combination of the European TTF and US Henry Hub benchmark indices. The development will use existing wells TE-6 and TE-7, and one new well to deliver the required raw gas volumes into the plant for the Phase 1 development and maintain a ten-year production plateau under the gas sales agreement. Construction of the micro-LNG plant continues at site, with revenue generating LNG sales forecast by the contractor, ITF, to commence late Q1 or Q2 2026.

The Company is grateful for the dedication and professionalism of our partners Mana Energy and ONYHM (25%), contractors and suppliers, for their ongoing partnership and support.

Further announcements will be made, as appropriate, in due course.

Majid Shafiq, Chief Executive Officer, commented:

"We are pleased that we have reached another milestone to bring gas to Moroccan industrial consumers and congratulate the operator, Mana Energy Ltd. I look forward to full commissioning of the micro-LNG facility and delivery of sales gas in the coming months. We are entering an exciting period at Sound Energy as we become a revenue generating company, whilst progressing to the FID for the second phase of development of the entire field, to supply Moroccan power markets."

For further information please visit www.soundenergyplc.com, follow on X @soundenergyplc and LinkedIn or contact:

About Sound Energy PLC:

Sound Energy is a transition energy investment opportunity, listed on the UK AIM market of the London Stock Exchange, with operations in Morocco centred around onshore exploration, development and production of gas and advancing renewable power generation initiatives. Gas is the focal transition fuel and critical to the country's energy policy to move to sustainable, local renewable energy, away from imported coal and hydrocarbon fuels. The company has a 25-year development concession with a micro- LNG development underway at Tendrara, the first major onshore gas resource in Morocco, and a larger Phase 2 piped gas project awaiting FID. Small scale LNG will supply the industrial market, whilst the piped gas development is for the power sector. Exploration wells are funded to support infrastructure led exploration potential. Together these give the company significant opportunities for scalable growth on its 28,000 square km of onshore permits. Sound Energy is therefore playing a pivotal role in responding to rising energy demand in Morocco and facilitating the energy transition. This is further enhanced by Sound's recent early-stage diversification into opportunities in renewable power generation and hydrogen exploration in Morocco. Sound has strong stakeholder engagement and partnerships with leading Moroccan companies, thereby leveraging in-country expertise in renewable energy projects and its gas developments. Financially, the company is focused on revenue targets from Phase 1 LNG production, judicious investment for the Phase 2 piped gas development and prudent cost management and balance sheet deleveraging to fund asset development opportunities.

ENDS