Notice of Investor Webcast

29 June 2026

Arkle Resources PLC

("Arkle" or the "Company")

Notice of Investor Webcast

Arkle Resources PLC (LSE:ARK), the energy metals explorer focused on uranium, will host a webcast and Q&A for investors via Investor Meet Company on Tuesday, 7 July 2026 at 11 a.m. BST.

The webcast, which will be hosted by Chief Executive Officer, Rory Harding, will provide a detailed update on activity across Arkle's core projects, with a focus on Namibia where an accelerated work programme is underway at the Erongo uranium project, with the first phase of RC drilling expected to begin shortly.

The presentation is open to all existing and potential shareholders. Investors can sign up to Investor Meet Company for free and add Arkle Resources PLC in order to attend the webcast via: https://www.investormeetcompany.com/arkle-resources-plc/register-investor.

Investors who already follow Arkle on the Investor Meet Company platform will automatically be invited. Questions can be submitted pre-event via the Investor Meet Company dashboard up until 9 a.m. BST on 6 July 2026, or at any time during the live presentation.

No material new financial information will be provided. A recording will be made available on the Company's website later that day.

Enquiries

About Arkle Resources

Arkle Resources PLC (AIM: ARK) is a multi-commodity exploration company focused on metals which are essential for the generation and storage of clean energy: uranium, lithium and zinc. Its projects are in tier-1 mining jurisdictions in Namibia, Botswana and Ireland, adjacent to world-class deposits.

Founded in 2004 by John Teeling and Jim Finn, the Company co-discovered the Stonepark zinc deposit in County Limerick, now Ireland's second largest undeveloped resource, in joint venture with Teck Ireland. Teck's interest was acquired by Group Eleven Resources (TSX-V: ZNG), who continue to advance the project alongside Arkle.

In January 2026, the Company announced a transformative deal to acquire Namibia Uranium Pty Ltd, which has introduced four highly prospective uranium licences contiguous to major producing and development assets in what is a world-class uranium jurisdiction. This acquisition, alongside the Company's existing licence portfolio and the introduction of new management, repositions Arkle to become a leading explorer in energy metals.

For more information visit: www.arkleresources.com

Follow us on social media:

www.x.com/ArkleResources

www.linkedin.com/company/arkle-resources-plc

About Reach Announcements

Reach is an investor communication service aimed at assisting listed and unlisted (including AIM quoted) companies to distribute media only / non-regulatory news releases such as marketing messages, corporate and product information into the public domain. An RNS Regulatory announcement is required to be notified under the AIM Rules for Companies.