Result of AGM

For immediate release

30 October 2026

ATOME PLC

(“ATOME” or the “Company”)

Results of Annual General Meeting

ATOME (AIM: ATOM), the world-leading low-carbon fertiliser developer and the UK's only dedicated international industrial scale low-carbon fertiliser company, is pleased to announce that all resolutions proposed to shareholders at the Company’s Annual General Meeting held at 11.00am today were duly passed.

For more information, please visit https://www.atomeplc.com or contact:

About ATOME

ATOME PLC is an AIM-listed company leading the international development of green fertiliser with a pipeline of projects across Latin America.

ATOME's projects are situated at the heart of one of the world's largest food export hubs - the Mercosur region in the Southern Cone of South America with the Argentinian and Brazilian markets next door. ATOME's production will disrupt the region's heavy dependence on imported fossil fuel generated fertiliser, contributing to regional food security goals.

In May 2026, ATOME declared unconditional Final Investment Decision on its flagship Villeta Project, Paraguay following the completion of US$665 million project finance backed by leading international development finance institutions and private infrastructure investors. The Villeta Project benefits from a minimum 10-year Definitive Offtake Agreement signed with Yara International, the leading international fertiliser company, for offtake of all of Villeta's green fertiliser production, as well as a US$465 million fixed-price EPC contract with leading ammonia and fertiliser engineering specialist Casale S.A.

Approximately a third of human caused GHG emissions is linked to food production according to UN data, and fertiliser use and production is the source of more emissions than the shipping and aviation industries combined. ATOME's green Calcium Ammonium Nitrate product will contribute to decarbonising the food sector from the bottom up, getting to the root of the food value chain's emissions. ATOME's renewably generated fertiliser is both low-carbon and provides a secure, stable alternative product not reliant on fossil fuels, unlike all nitrogen fertiliser production today.

The Company has a green-focused Board which is supported by major shareholders including Peter Levine, Schroders, a leading fund manager, Baker Hughes, a global energy technology company operating in the energy and industry sectors and Casale S.A, the Swiss-based ammonia and fertiliser specialist engineering firm and technology licensor.

Other information

Beaumont Cornish Limited ("Beaumont Cornish") is the Company's Nominated Adviser and is authorised and regulated by the FCA. Beaumont Cornish's responsibilities as the Company's Nominated Adviser, including a responsibility to advise and guide the Company on its responsibilities under the AIM Rules for Companies and AIM Rules for Nominated Advisers, are owed solely to the London Stock Exchange. Beaumont Cornish is not acting for and will not be responsible to any other persons for providing protections afforded to customers of Beaumont Cornish nor for advising them in relation to the proposed arrangements described in this announcement or any matter referred to in it.

Distribution

This announcement has been notified via a Regulatory Information Service and it is not authorised for distribution into North America or any other jurisdiction where to do so would constitute a violation of the relevant laws or regulations of that jurisdiction.

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