1^st May 2026

Clontarf Energy plc

("Clontarf" or "the Company")

Company Update

Clontarf Energy plc (AIM: CLON), the energy company focused on lithium brines and petroleum projects, is pleased to provide the following update.

The recent Bolivian election has signalled a shift towards more pro-business policies, during the coming months the new government plans to reform a number of key legislations involving much needed foreign investment in strategic areas covered by the Hydrocarbons and Energy Ministry including oil exploration, renewable energy and lithium.

The new President of YLB, Sergio Soliz Gomez, was recently appointed in mid-March 2026.

The Company is currently engaging with the new President and his team, and its local representatives expect to meet with officials in the coming weeks.

The Company's immediate objective is to enter into a Memorandum of Understanding with Yacimientos de Litio Bolivianos (YLB) which would enable it to obtain large bulk samples from the Coipasa and Uyuni brine deposits for shipping and then processing at the Next-ChemX pilot plant in India.

A detailed Chairman's Statement will be included in the Annual Report, which is expected to be issued before the end of June 2026.

Over the past few months, the Board has reviewed a number of potential projects which were deemed unsuitable for the Company. The Board will continue to evaluate new opportunities in line with its strategic objectives.

For further information please visit http://clontarfenergy.com or contact: