Board Changes

The information contained within this announcement is deemed by the Company to constitute inside information as stipulated under the Market Abuse Regulations (EU) No. 596/2014 ("MAR"). Upon the publication of this announcement via Regulatory Information Service ("RIS"), this inside information is now considered to be in the public domain. If you have any queries on this, then please contact Steve Boldy, the Chief Executive Officer of the Company (responsible for arranging release of this announcement).

9 September 2026

Lansdowne Resources PLC

("Lansdowne Resources" or the "Company")

Board Changes

Lansdowne Resources Plc (AIM: LRES) announces the following changes to its board and management team following the successful acquisition of 100% of São Gabriel Mineração Ltda. ("SGM"), a Brazilian company focused on developing the Macaubas graphite project in Bahia, Brazil, earlier this year.

As set out in the Company's AIM Admission Document, Stephen Boldy has stepped down from his position as Chief Executive Officer of the Company but will continue to serve as a non-executive director of the Company and support the Company including in respect of its ongoing Energy Charter Treaty claim.

The Board has continued progressing the appointment of a replacement Chief Executive and expects to provide further details in this regard later this month.

Given the repositioning of the Company towards the wider mining sector, Jeffrey Auld, Independent Non-Executive Chairman of the Company, has tendered his resignation to focus on his other business commitments and will be stepping down from the Board with immediate effect. Mr. Auld will continue to support the Company's work associated with the Company's Energy Charter Treaty claim as appropriate.

Luis Azevedo, presently a Non-executive Director of the Company, has agreed to act as interim Chairman pending appointment of a Chief Executive and further review of the board at that time.

Further information on the Company and the Macaubas project, including the AIM Admission Document, can be found on the Company's website at https://www.lansdowneresources.com/

Lansdowne Resources' Interim Chairman, Luis Azevedo, commented: "We are grateful for Jeffrey's work during his 13 years on the Board of Lansdowne Resources, including his service as Chairman since 2021. With the Company repositioned for future growth following the acquisition of SGM earlier this year and funded in respect of its continued litigation with Ireland, we are excited about the opportunities ahead for Lansdowne Resources and look forward to providing further updates in due course including in respect of the progress made to date at Macaubas."

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