17 June 2026

Halo Minerals PLC

("Halo Minerals", the "Company" and, together with its subsidiaries, the "Group")

Initiation of Equity Development Research Coverage

Halo Minerals PLC (AIM: HALO), the copper development company focused on extracting critical minerals from legacy mining waste, is pleased to announce the initiation of independent equity research coverage by Equity Development.

The research provides investors and other market participants with an independent analytical framework through which to assess the Company, its development strategy, and the potential value drivers associated with the Playa Verde project.

The initiation research note outlines, among other matters, the investment case for Halo Minerals, the copper market backdrop, Chile as a mining jurisdiction, the technical and environmental characteristics of tailings reprocessing, Halo Minerals's Playa Verde project, and potential upside scenarios associated with the Company's resource base and development pathway.

The research has been written by leading mining analyst Nick Hatch and is available on Equity Development's website at:

https://www.equitydevelopment.co.uk/research/tag/halo-minerals

A copy or link to the research note will also be made available on the Company's website at:

https://halominerals.co.uk/investors/analyst-research/

Andrew Dennan, Chief Executive Officer of Halo Minerals, commented:

"We are pleased to confirm the initiation of research coverage by Equity Development. Since admission to AIM, Halo Minerals has continued to progress its strategy of advancing the Playa Verde copper tailings project towards final investment decision, while also seeking to broaden investor awareness of the Company and the scale of the opportunity.

We believe that high-quality independent research will assist investors in better understanding Halo Minerals' differentiated position: a copper development company focused on legacy tailings reprocessing, with the potential to combine strategic copper production with environmental detoxification and/or remediation, and a lower-risk development pathway.

We look forward to working with Equity Development as we continue to communicate the Halo Minerals investment case to a wider audience."

Enquiries:

Forward Looking Statements

This announcement contains forward-looking statements relating to expected or anticipated future events and anticipated results that are forward-looking in nature and, as a result, are subject to certain risks and uncertainties, such as general economic, market and business conditions, competition for qualified staff, the regulatory process and actions, technical issues, new legislation, uncertainties resulting from potential delays or changes in plans, uncertainties resulting from working in a new political jurisdiction, uncertainties regarding the results of exploration, uncertainties regarding the timing and granting of prospecting rights, uncertainties regarding the Company's ability to execute and implement future plans, and the occurrence of unexpected events.   Actual results achieved may vary from the information provided herein as a result of numerous known and unknown risks and uncertainties and other factors. 

Notes to Editors

Halo Minerals PLC is the 100% owner of the Playa Verde project, an advanced copper tailings project focused on reprocessing metal rich historic tailings which have accumulated onto a beach located in the Atacama region of Chile. The project is a technically de-risked and in October 2025 received unanimous approval for its EIA from the Chilean Government's Ministerial Committee.

Playa Verde has a JORC compliant resource of 53.4 Mt @ 0.24% Cu, which includes reserves of 32.2 Mt @ 0.25% Cu, and is updating its DFS for dredging and retreatment initially targeting the reserves of ore located on the beach followed by up to a further 21 Mt of ore contained in the western berm and shoreline area. The project is well placed with significant upside in securing the rights to process up to a further 100 Mt of potential offshore resource which originated from the same historical mining operations as the onshore resource.

Halo Minerals plans to advance the Playa Verde project on an accelerated timeline to production with funds raised expected to take the project to a final investment decision. Financial analysis estimates operating costs of only $2.19 per pound of copper produced, with the processing of the reserves having an NPV10 of US$ 154.1 million and an IRR of 50.9% after tax from a 7 year life of mine to produce the 32.2 Mt of reserves (based on static commodity price assumptions of $5.30/lb Cu and $4,300/oz Au).

The Company's philosophy is "Mining with a difference" working with the community to detoxify the region, returning the re-treated beach back to the local community whilst economically producing key strategic and battery metals to the benefit of all stakeholders.

This communication is a "Reach" announcement. Reach is a non-regulatory news service. By using this service an issuer is confirming that the information contained in this announcement is of a non-regulatory nature. Information required to be notified under the AIM Rules for Companies, Market Abuse Regulation or other regulation would be disseminated as an RNS regulatory announcement and not on RNS Reach.