Directorate Change

25 March 2024 - Singapore: Jadestone Energy plc ("Jadestone", or the "Company"), an independent upstream company focused on the Asia-Pacific region, announces the following changes to its Board of Directors (the "Board").

Further to the announcement of 23 February 2024, Dr Adel Chaouch has been appointed to the Board as an independent Non-Executive Director following completion of due diligence.

Dr Chaouch was Executive Director and Chief Executive Officer of ShaMaran Petroleum Corp., part of the Lundin Group of Companies, operating in the Kurdistan Region of Iraq, and prior to that he led Marathon Oil Company's ("Marathon") interests in the Middle East and North Africa. He was also responsible for the creation of a gas hub in Equatorial Guinea. Prior to working for Marathon, Dr Chaouch held positions of increasing responsibility for Raytheon E&C company, primarily on major projects largely in the oil and gas sector. He holds a Masters and a Ph.D. in Engineering from Texas A&M University.

In line with the announcements of 25 January 2024 and 23 February 2024 respectively, Robert Lambert and Lisa Stewart have stepped down from the Board with immediate effect.

Dennis McShane, Chair of Jadestone, commented:

"We welcome Adel to Jadestone's Board. His extensive upstream experience and skillset will greatly benefit the company. We also extend our deepest thanks to Robert and Lisa for their guidance and contributions over the years. We wish them well for the future."

Regulatory disclosures

Dr Adel Chaouch, aged 55, has held the following directorships and/or partnerships in the past five years:

• Bilateral Chamber of Commerce (current)
• Blue Crest Ventures, LLC (current)
• 0781756 BC Limited (previous)
• Association of the Petroleum Industry of Kurdistan (previous)
• Bayou Bend Petroleum USA Ltd Nevada (previous)
• Bayou Bend Petroleum USA Ltd Texas previous)
• General Exploration Partners, Inc (previous)
• Ophir Energy plc (previous)
• ShaMaran Petroleum Corp. (previous)
• ShaMaran Sarsang A/S (previous)
• ShaMaran Services AG (previous)

Dr Chaouch does not directly hold any ordinary shares nor options over ordinary shares in the Company.

There is no further information which is required to be disclosed under Schedule Two, paragraph (g),

of the AIM Rules for Companies in respect of Adel Chaouch.