Posting of Annual Report & Notice of AGM

Further to the announcement of the Company's results for the year ended 31 December 2025 on 3 June 2026, Rockhopper (AIM: RKH) confirms that the Annual Report and Accounts for the year ended 31 December 2025 will be available from 12.00 p.m. today on the Company's website. Hard copies will be posted to those shareholders who elected to receive them, together with documentation for the 2026 Annual General Meeting ("AGM").

The AGM is scheduled to be held at 10.00 a.m. on Tuesday, 30 June 2026 at The Clubhouse, Skew Bridge, Wilton Road, Salisbury, Wiltshire SP2 9NY.

The AGM Notice includes resolutions relating to the proposed election of two new directors to the Board to reflect the new phase of Rockhopper's development having taken FID at Sea Lion and the increasingly international nature of the shareholder register.

William Perry will, subject to approval of shareholders at the AGM, join the Board as Chief Financial Officer ("CFO"). William has been performing the role of CFO in a non-Board capacity since 2021. A Chartered Accountant, he started working with Rockhopper in 2010 before joining full time in 2011. He joined from Smith & Williamson where he was a senior manager with a portfolio of clients from a range of industries including those in the oil and gas sector. Relevant disclosures under AIM Rule 17 and Schedule 2(g) of the AIM Rules for Companies are provided below.

Barak Mashraki will, subject to approval of shareholders at the AGM, join the Board as an Independent Non-Executive Director. Barak is an experienced energy, finance, and capital markets executive with over two decades of leadership experience in the oil and gas industry, including large-scale energy investments and strategic development initiatives. He served as Chief Financial Officer of Delek Group, one of Israel's leading energy groups, from 2008 to 2020, and most recently as Chief Executive Officer of Tel Aviv-listed Tamar Petroleum until early 2026. He brings extensive relationships across the Israeli institutional investor and capital markets community. He currently serves as a Board advisor to Ratio Petroleum.

As Barak Mashraki is not a UK citizen, his appointment is subject to additional due diligence which is currently ongoing. Subject to approval by shareholders at the AGM, confirmation of his appointment and relevant disclosures under AIM Rule 17 and Schedule 2(g) of the AIM Rules for Companies will be provided on completion of the AGM.

Mr William Rees Perry (aged 49 years old) holds or has held the following directorships or partnerships in the past five years:

Desire Petroleum Ltd

Rockhopper Exploration (Petrochemicals) Ltd

Rockhopper Resources Ltd

Rockhopper Exploration (Hydrocarbons) Ltd

Rockhopper Exploration (Oil) Ltd

Rockhopper Mediterranean Ltd

Falkland Oil and Gas Ltd - Falkland Islands company

Rockhopper Exploration (Oil) Ltd - Falkland Islands company

Project Elephant Funding Limited - Jersey company

Project Rec Funding Limited - Jersey company

Mr Perry holds the following interest in the Company:

No further disclosures on William Perry are required under AIM Rule 17 or Schedule 2(g) of the AIM Rules for Companies.