Board and Audit Chair Appointment

10^th November 2025

AFENTRA PLC

Board and Audit Chair Appointment

Afentra plc (‘Afentra’ or the ‘Company’) (AIM: AET), the upstream oil and gas company focused on acquiring production and development assets in Africa, is pleased to announce the appointment of Andrew Osborne as Independent Non-Executive Director and Chair of the Audit Committee, with effect from 10^th November 2025. On his appointment Andrew Osborne will also become a member of the Company’s Nominations Committee and Remuneration Committee. Thierry Tanoh, Chairman of the Board, will step down from his interim Audit Committee Chair responsibilities upon Andrew’s appointment.

Andrew Osborne brings more than 30 years’ board-level and senior leadership experience across oil & gas, capital markets and M&A. He was most recently EVP, Special Projects at Harbour Energy plc (2021-2024) and previously Chief Financial Officer at Chrysaor (2012-2021), where he led major financings and acquisitions, including transactions with Shell and ConocoPhillips, and was part of the executive team during the merger that created Harbour Energy. Earlier in his career he was a Managing Director at Merrill Lynch.

Thierry Tanoh, Chairman, commented:
“On behalf of the Board, I am delighted to welcome Andrew to Afentra. His deep financial, transaction and governance experience in the energy sector will bring valuable perspective to the Board and enhance the effectiveness of the Audit Committee. Andrew’s appointment further strengthens our governance framework as Afentra continues to build its position as a responsible, well-governed and financially disciplined independent producer.”

Andrew Osborne, Audit Chair, commented:

“I’m pleased to be joining Afentra at this exciting stage in its growth. The Company’s disciplined approach to capital management and its strategic focus on value-accretive opportunities in Africa align well with my experience and interests. I look forward to working with the Board and management team to support Afentra’s continued progress and ensure robust financial oversight as the business evolves.”

Board and Board Committee Chairs

Following the appointment of Andrew Osborne as Independent Non-Executive Director of Afentra, the Board and Board Committee Chairs will be as follows:

For further information contact:

Afentra plc +44 (0)20 7405 4133

Paul McDade, CEO

Anastasia Deulina, CFO

Christine Wootliff, Investor Relations

Burson Buchanan (Financial PR) +44 (0)20 7466 5000

Ben Romney

Barry Archer

George Pope

Stifel Nicolaus Europe Limited (Nominated Adviser and Joint Broker) +44 (0) 20 7710 7600

Callum Stewart

Simon Mensley

Ashton Clanfield

Tennyson Securities (Joint Broker) +44 (0)20 7186 9033

Peter Krens

Regulatory Disclosures

In accordance with AIM Rule 17 and Schedule Two (g) of the AIM Rules for Companies, the following information is disclosed regarding Andrew Jon Osborne, aged 55:

-       Current directorships/partnerships: Acorn Investment Management and Kalahari Copper Limited (BVI)

-       Directorships/partnerships held within the last five years:

-       On 15 February 2012 the UK Financial Services Authority announced it had imposed a financial penalty on Mr. Osborne https://www.fca.org.uk/publication/final-notices/andrew_osborne.pdf.

The Company confirms that there is no other information to be disclosed under the requirements of Schedule Two (g) of the AIM Rules for Companies.

About Afentra

Afentra plc (AIM: AET) is an upstream oil and gas company focused on opportunities in Africa. The Company’s purpose is to support a responsible energy transition in Africa by establishing itself as a credible partner for divesting IOCs and host governments. Offshore Angola, in the Lower Congo Basin, Afentra holds a 30% non-operated interest in the producing Block 3/05, a 21.33% non-operated interest in Block 3/05A, and a 40% operated interest in Block 3/24 – both Blocks 3/05A and 3/24 are located adjacent to Block 3/05. Onshore Angola, in the western part of the onshore Kwanza Basin, Afentra holds 45% non-operated interests in the prospective Blocks KON15 and KON19. Afentra also holds a 40% non-operated interest in the offshore exploration Block 23 in the Kwanza Basin, and a 34% carried interest in the Odewayne Block, onshore in south-western Somaliland.

Inside Information

This announcement contains inside information for the purposes of article 7 of Regulation 2014/596/EU (which forms part of domestic UK law pursuant to the European Union (Withdrawal) Act 2018) and as subsequently amended by the Financial Services Act 2021 (‘UK MAR’). Upon publication of this announcement, this inside information (as defined in UK MAR) is now considered to be in the public domain. For the purposes of UK MAR, the person responsible for arranging for the release of this announcement on behalf of Afentra is Paul McDade, Chief Executive Officer.