Investor Presentation via Investor Meet Company

8 October 2025 - Singapore: Jadestone Energy plc (AIM:JSE) (the "Company" and together with its subsidiaries, "Jadestone" or the "Group"), an independent upstream production and development company focused on the Asia-Pacific region, announces that Executive Chairman Dr. Adel Chaouch, Chief Executive Officer T. Mitch Little and Chief Financial Officer Andrew Fairclough will provide a live presentation via the Investor Meet Company platform on 16 October 2025 at 2:00 p.m. BST.

The presentation is open to all existing and prospective shareholders. Questions can be submitted pre-event via the Investor Meet Company dashboard up until 9:00 a.m. the day before the meeting or at any time during the live presentation.

Investors can sign up to Investor Meet Company for free and add to meet Jadestone via:

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

Investors who already follow Jadestone on the Investor Meet Company platform will automatically be invited.

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For further information, please contact:

About Jadestone Energy

Jadestone Energy plc is an independent upstream company focused on the Asia-Pacific region. It has a balanced and increasingly diversified portfolio of production and development assets in Australia, Malaysia, Indonesia and Vietnam, all stable jurisdictions with a positive upstream investment climate.

The Company is pursuing a strategy to grow and diversify the Company's production base both organically, through developments such as Nam Du/U Minh in Vietnam and the Puteri Cluster offshore Malaysia, as well as through acquisitions that fit within Jadestone's financial framework and play to the Company's strengths in managing maturing oil assets. Jadestone delivers value in its acquisition strategy by enhancing returns through operating efficiencies, cost reductions and increased production through further investment.

Jadestone is a responsible operator and well positioned for the energy transition through its increasing gas production, by maximising recovery from existing brownfield developments and through its Net Zero pledge on Scope 1 & 2 GHG emissions from operated assets by 2040. This strategy is aligned with the IEA Net Zero by 2050 scenario, which stresses the necessity of continued investment in existing upstream assets to avoid an energy crisis and meet demand for oil and gas through the energy transition.

Jadestone Energy plc (LEI: 21380076GWJ8XDYKVQ37) is listed on the AIM market of the London Stock Exchange (AIM: JSE).  The Company is headquartered in Singapore.  For further information on the Company please visit www.jadestone-energy.com.

This announcement does not include inside information.