Board Changes

THIS ANNOUNCEMENT CONTAINS INSIDE INFORMATION FOR THE PURPOSES OF ARTICLE 7 OF REGULATION 596/2014 AS AMENDED AND TRANSPOSED INTO UK LAW IN ACCORDANCE WITH THE EUROPEAN UNION (WITHDRAWAL) ACT 2018 ("UK MAR").

30 September 2026

Seascape Energy Asia plc

("Seascape Energy", the "Company" or "Seascape")

Board Changes

Seascape Energy, an E&P company focused on Southeast Asia, announces that its Executive Chairman, James Menzies, has stepped down from the board to focus on his continuing recovery from a serious cycling accident in the summer.

Geraldine Murphy, currently Interim Non-Executive Chair, has been appointed Non-Executive Chair on a permanent basis, continuing her strong support of the Company and its growth strategy since inception.

Geraldine has over 35 years of energy investment banking and M&A experience in senior roles at Standard Chartered Bank, Harrison Lovegrove, CIBC and Perella Weinberg Partners. Geraldine joined the Seascape board in June 2024 and has been instrumental in the transformational pivot of the Company to Southeast Asia and subsequent growth initiatives. Geraldine is also an Independent Non-Executive Director at Ithaca Energy plc, a FTSE 100 E&P business focused on the UK Continental Shelf. Geraldine holds a BSc (Hons) degree in Geology and a MSc in Petroleum Geology from University College Dublin.

Additionally, Haida Hazri, currently Non-Executive Director, has been appointed Senior Independent Director and Chair of the Audit Committee.

Haida has over 25 years of experience in E&P, LNG and technology within PETRONAS, Sapura Energy and various other energy entities across a wide range of legal and commercial roles including CEO of PETRONAS Technology Ventures and VP, Strategy and New Ventures at Sapura Energy. Haida joined the Seascape board in early 2025 and is Chair of Malaysian-listed Keyfield International Berhad and previously a board member of Malaysian-listed rig owner Velesto Energy Berhad.

Haida, a Malaysian national, holds a double degree in Accounting and Finance (BComm) and Law (LLB) from Melbourne University, a Masters in Law (LLM) from Universiti Malaya and a Certificate of Corporate Governance (IDP-C) from INSEAD. Haida is a recipient of the Oakleaf Award from Trinity College, Melbourne.

Geraldine Murphy, Non-Executive Chair, commented:

"Our thoughts remain with James as his recovery continues to progress with the help of his friends and family. We would like to express our deep appreciation for his significant contribution to establishing Seascape as a well- respected upstream player in Southeast Asia and look forward to his ongoing support as a shareholder.

I am excited to work closely with the Seascape executive team as the Company reaches an important inflection point on its path to becoming a full-cycle business with multiple value-creation catalysts in the months ahead.

I would also like to congratulate Haida on her appointed to Senior Independent Director and look forward to her continued contribution to the success of the business in the boardroom and on-the-ground in Malaysia."

Ends

Seascape Energy Asia plc [email protected]

Nick Ingrassia (Chief Executive)

Pierre Eliet (Executive Director)

Stifel (Nomad and Joint Broker) Tel: +44 20 7710 7600

Callum Stewart

Simon Mensley

Ashton Clanfield

Cavendish Capital Markets Limited (Joint Broker) Tel: +44 20 7397 8900

Neil McDonald

Pete Lynch