Statement Regarding Recent Share Price Movement

1 October 2026

HALO MINERALS PLC

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

Statement Regarding Recent Share Price Movement

Halo Minerals PLC (AIM: HALO), the copper development company focused on the recovery of critical minerals from legacy mining waste, notes the recent movement in the Company’s share price.

The Board confirms that it is not aware of any operational, financial or corporate reason that would account for the recent decline in the Company’s share price.

The Company remains focused on advancing the Playa Verde copper and gold tailings reprocessing project in Chile and confirms that progress continues in line with the milestones and objectives outlined in the Company’s recent announcement regarding completion of the Class 3 Engineering and Bankable Feasibility Study Update.

As previously announced, the Company is progressing the principal workstreams required to move Playa Verde towards Final Investment Decision (“FID”), including:

• completion of the updated Competent Person’s Report and resource evaluation;
• value engineering and optimisation programmes;
• permitting and environmental workstreams;
• stakeholder engagement activities;
• EPC and major equipment tender preparation;
• commercial discussions with prospective offtake counterparties; and
• evaluation and structuring of project financing alternatives.

The Board believes the recent Class 3 Engineering and Bankable Feasibility Study Update further demonstrated the technical robustness of Playa Verde and provided an important foundation for financing and development activities. The Company continues to engage with a range of potential financing, strategic and commercial counterparties as part of its FID readiness programme.

The Company also confirms that work continues on the technical, commercial and financing initiatives previously announced.  With an indicative implementation schedule of approximately 18 months and current study planning assumptions supporting a potential operational start-up in October 2028.

The Company will continue to keep shareholders informed of material developments in accordance with its regulatory obligations.

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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.