REG - Halo Minerals PLC - Appointment of contractor
08/04/2026 07:00
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RNS Number : 5378Z Halo Minerals PLC 08 April 2026
8 April 2026
Halo Minerals PLC
("Halo Minerals" or the "Company")
Appointment of contractor to review and optimise mineral processing plant flow
sheet and assist in securing ancillary permits
Halo Minerals PLC (AIM: HALO), the copper development company focused on
extracting critical minerals from legacy mining waste, announces that it has
contracted BIOS Mining & Infrastructure ("BIOSMI") to conduct the mineral
processing plant flow sheet design review and optimisation studies. BIOSMI
will also assist the Company in the application process and in the securing of
the ancillary permits needed to advance the Company's Playa Verde project (the
"Project") towards a position where a final investment decision ("FID") could
be made. BIOSMI (former name Propipe) has worked with the Project for over 10
years and has detailed knowledge of the Company's development plans; having
previously supported the Company with the mineral processing plant flow sheet
and design studies during the previously completed definitive feasibility
studies.
The Company also confirms that the annual mining license fees for the
Project's six mining concessions have been paid in accordance with their
terms.
Highlights
- Engagement of specialist multidisciplinary mining firm BIOSMI to review
and optimise the Project mineral processing plant flow sheet.
- Engagement of BIOSMI to assist the Company in filing for and securing the
ancillary permits needed to advance the Project towards a position where a FID
could be taken.
- Payment of annual mining concession license fees.
Andrew Dennan, CEO of Halo Minerals, commented:
"We are pleased to continue to work with BIOSMI, who have previously supported
the Project and bring detailed knowledge of its development. Their work to
review and optimise the mineral processing plant flowsheet and support the
Company on ancillary permit applications is an important step in progressing
the Project towards a potential FID."
Background and Scope of Mineral Processing Plant Optimisation Study
The Company has engaged BIOSMI to provide conceptual engineering and economic
analysis services to Minera Playa Verde to update the existing feasibility
information for the Project. The scope includes work to evaluate a
complementary process circuit to reduce arsenic levels in final tailings to
support compliance with commitments under the Project's approved Environmental
Impact Assessment ("EIA"), as well as to review the flow sheet more generally
and provide suggestions on ways that this can be optimised (including review
of conventional as well as newer technologies) for both efficiencies and
potential to reducing overall CAPEX spend. BIOSMI will also produce an updated
business case (CAPEX/OPEX and economic evaluation) for the Playa Verde process
plant and associated infrastructure, supporting decision‑making on project
implementation.
The objective of the study is to update material balance calculations, review
conventional and newer technology applications in order to optimise the
mineral processing plant flow sheet, update estimated costs for CAPEX and OPEX
of the Project (including new quotations for key equipment and updated prices
for material and labour) and to produce final reports for these studies that
can support a FID being taken.
Background and Scope of Ancillary Permit Support
BIOSMI will provide consultancy services to Minera Playa Verde to plan,
prepare and process the required sectoral permits and related authorisations
for the Project. The objective is to secure the necessary approvals from the
competent authorities, to allow construction and operation to proceed in
compliance with Chilean regulations and to support a potential FID in due
course.
BIOSMI have also been engaged to develop a Permit Management Plan consistent
with the approved EIA and the Project's RCA. BIOSMI will identify the
applicable sectoral permits and mixed environmental‑sectoral permits (PASM
and PS) required for the construction and operation phases of the Project and
will prepare the required application documentation for each required permit
or authorisation. This task is expected to take approximately 180 days to
complete.
About BIOSMI
BIOS Mining and Infrastructure is a Chilean company, head quartered in
Santiago, who are specialised in the provision of consulting and
multidisciplinary engineering services for the Mining, Energy and Water and
Industrial Waste treatment sectors. BIOSMI have a team of professional
specialists in: Design, Construction Support and Administration of Mining
Projects, being recognised in the development of Fluid Transport projects,
Infrastructure Design for mining: Concentrating Plants, Chemical Plants, Civil
Works and Structures, Mining Pipelines, Management and Disposition of
Tailings, Water Adductions, Seawater Collection and Impulsion and Leaching
Plants. BIOSMI develop engineering studies and projects from pre-investor
phases to construction stages, including advice on the diagnosis and
optimisation of systems in operation. They have extensive experience in the
development of projects, participating in the stages of Conceptual Engineering
until the implementation of the projects, where all their work is elaborated
with certified quality processes ISO 9001/14001. They have specialised
permanent staff in the areas of Processes, Hydraulics, Piping Mechanics, Civil
Works, Metal and Concrete Structures, High Voltage Electricity,
Instrumentation and Control, Geomensura, Cost and Programming, Architecture
and Environment. BIOSMI have worked on a large number of projects including
projects for Antofagasta Minerals, BHP, First Quantum and Codelco.
The Directors of the Company are responsible for the release of this
announcement.
Enquiries:
Halo Minerals PLC Via Tavistock below
Andrew Dennan, Chief Executive Officer
Frank Jackson, Chief Financial Officer
Information@HaloMinerals.co.uk
www.halominerals.co.uk
Cairn Financial Advisers LLP (NOMAD) +44 20 7213 0880
Liam Murray
Ludovico Lazzaretti
James Western
Global Investment Strategy (Broker) +44 20 7048 9045
Christopher Kipling
Tavistock (Public Relations) +44 20 7920 3150
Nick Elwes
Josephine Clerkin
Gareth Tredway
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.
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