07 November 2025

ECO (ATLANTIC) OIL & GAS LTD.

("Eco," "Eco Atlantic," "Company," or together with its subsidiaries, the "Group")

Eco Atlantic respectfully announces the passing of Colin Kinley

It is with the greatest sadness that we announce the sudden passing of Colin Kinley, a board member and Chief Operating Officer of Eco Atlantic. The Board and Company express their sincere condolences to Karen, Cooper and Claire, and their extended family and friends.

Colin had a distinguished career over more than 45 years in the mining and oil and gas frontier exploration industries. In addition to his co-founding role with Eco, and the wealth of knowledge and experience he has brought to the Company over the years, he has served as a valued director and senior executive of a number of publicly quoted companies, including Coro Mining, Marimaca Copper Corp. and Gunnison Copper, as well as leading his own teams as CEO and President at Kinley Exploration LLC and Jet Mining Pty LLC.

Effective immediately Gil Holzman and Alice Carroll will assume all responsibilities over Eco's operational and technical teams and the company's country managers will report directly to the CEO.

Gil Holzman, President and CEO of Eco Atlantic, commented:

 "Colin's broad experience across both the oil & gas and mining sectors, as well as his unique personality and entrepreneurial spirit, made him a special asset to the natural resources industry. Above all and first and foremost, he was a dear friend of mine, who will be sorely missed by the entire Eco Atlantic Group."

About Eco Atlantic:

Eco Atlantic is a TSX-V and AIM-quoted Atlantic Margin-focused oil and gas exploration company with offshore license interests in Guyana, Namibia, and South Africa. Eco aims to deliver material value for its stakeholders through its role in the energy transition to explore for low carbon intensity oil and gas in stable emerging markets close to infrastructure.

Offshore Guyana, in the proven Guyana-Suriname Basin, the Company operates a 100% Working Interest in the 1,354 km² Orinduik Block. In Namibia, the Company holds Operatorship and an 85% Working Interest in three offshore Petroleum Licences: PELs: 97, 99, and 100, representing a combined area of 22,894 km² in the Walvis Basin. Offshore South Africa, Eco holds a 5.25% Working Interest in Block 3B/4B and a 75% Operated Interest in Block 1, in the Orange Basin, totalling approximately 37,510km².

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

The information contained within this announcement is deemed by the Company to constitute inside information as stipulated under the Market Abuse Regulation (EU) No. 596/2014 as it forms part of United Kingdom domestic law by virtue of the European Union (Withdrawal) Act 2018, as amended by virtue of the Market Abuse (Amendment) (EU Exit) Regulations 2019.