REG - Aterian PLC - Copper-Silver Structures Identified at Agdz Est

AterianAnnouncement

29/01/2026 07:00

For best results when printing this announcement, please click on link below:
https://newsfile.refinitiv.com/getnewsfile/v1/story?guid=urn:newsml:reuters.com:20260129:nRSc7909Qa&default-theme=true

RNS Number : 7909Q  Aterian PLC  29 January 2026

29 January 2026

 

Aterian plc

("Aterian" or the "Company" or the "Group")

 

Multiple Copper-Silver Mineralised Structures Identified, Agdz Est Project,
Morocco

 

Aterian plc (AIM: ATN), the Africa-focused critical metals exploration
company, is pleased to announce encouraging surface sampling results from its
100%-owned Agdz Est Copper-Silver ("Cu-Ag") Project ("Agdz Est" or the
"Project") in the Kingdom of Morocco ("Morocco").

 

The results identify multiple mineralised fault zones hosting copper and
silver, significantly extending the known footprint of mineralisation within
the broader 50.4 km² Agdz Project ("Agdz") area. The identification of these
multiple mineralised structures over a limited area highlights the potential
scale of the system and materially enhances the Company's confidence in
advancing Agdz towards drill evaluation.

Highlights:

·      Multiple copper-silver mineralised fault zones identified,
confirming a structurally controlled mineral system.

·      Mineralisation confirmed from only c.10% of the Agdz Est Project,
highlighting significant exploration upside.

·      Four sub-parallel structures mapped over strike lengths of up to
0.9 km, with apparent widths of up to 7 metres, and open along strike.

·      Mineralised zones are spaced 300 to 400m apart, and commonly
covered with a thin soil and rock float.

·      Encouraging copper and silver grades returned from early-stage
surface sampling, including:

o  1.39 % Cu from a 2 m wide breccia zone

o  0.51 % Cu with 7 g/t Ag from a 3 x 2 m outcrop of silicified granite

o  2.97 % Cu with 51 g/t Ag from float sample

o  1.34 % Cu with 31 g/t Ag from a fractured zone of 4 m apparent width
within granite

·      Follow-up ground magnetic and trenching planned to test
continuity, scale and structural controls on mineralisation.

 

Strategic Significance

These results support the interpretation that Agdz Est forms part of a
broader, district-scale copper-silver system, with multiple mineralised
structures developed within a favourable geological setting.

 

With mineralisation confirmed to date over a limited area, the Company
believes there is clear potential to identify additional mineralised
structures across the remainder of the permit.

 

The data generated from this programme will feed into Aterian's previously
announced partnership with Lithosquare, the AI-based exploration platform. The
data will be used to assist in evaluating Agdz alongside other assets for
selection and accelerate decision-making for advanced exploration and
drilling. This approach supports a disciplined, technology-enabled framework
for prioritising projects with the greatest potential for scalable
copper-silver development.

 

Charles Bray, Chairman of Aterian, commented:

"These early-stage results from Agdz Est represent a highly encouraging
breakthrough in unlocking the scale potential of the Agdz Copper-Silver
Project.  The identification of multiple copper and silver-bearing fault
zones, all of which remain open along strike, materially strengthens our
strong conviction that Agdz hosts a large, structurally extensive mineral
system with meaningful exploration upside.

 

Importantly, mineralisation has been confirmed across only a small portion of
the permit area to date, highlighting the significant untapped potential that
remains. The next phase of work will focus on systematic follow-up, including
ground geophysics and trenching, designed to define continuity, expand scale,
and prioritise high-quality drill targets. We look forward to sharing this new
data with our AI partners, Lithosquare.

 

We are particularly excited by the prospect of advancing towards a focused
drilling campaign in Morocco, with Agdz emerging as a flagship opportunity
within the portfolio. The growing body of geological evidence continues to
reinforce our belief that Agdz has the potential to develop into a substantial
copper-silver system. We look forward to delivering further updates as
exploration momentum builds and value is progressively unlocked for
shareholders."

 

Project Summary:

The Company, through its wholly owned subsidiary Aterian Resources Limited,
holds a 100% interest in the 50.4 km² Agdz Copper-Silver Project, comprising
the 15.9 km² Agdz Est licence and the adjacent 34.5 km² Agdz licence in
central Morocco. The Project is located in the highly prospective Anti-Atlas
Mountains within the Souss-Massa-Drâa region, approximately 35 km east of
Ouarzazate, a well-serviced regional hub with an airport and established
infrastructure. The Project benefits from excellent access via paved and
unpaved roads. It is situated approximately 40 km southeast of the Noor 1
solar power complex, one of the world's largest renewable energy facilities.

 

Agdz is located within Morocco's highly prospective Anti-Atlas belt, a stable
and well-established mining jurisdiction with growing strategic importance for
copper supply.

 

The Agdz Project is situated within a well-established copper-silver mining
district, approximately 14 km southwest of the Bouskour copper-silver mine (53
Mt at 0.8% Cu and 9 g/t Ag) and within trucking distance of existing mining
infrastructure. The world-class Imiter silver mine (131 Moz at 500 g/t Ag)
lies approximately 80 km northeast of the Project, with both operations owned
by Managem Group, Morocco's leading mining company. While mineralisation at
neighbouring deposits is not necessarily indicative of mineralisation at Agdz,
their presence underscores the district-scale prospectivity of the region.

 

 

Aterian Sampling Programme

Sampling to date has consisted of 34 surface rock samples: 32 composite point
rock chip samples and 2 grab samples from float. The programme aimed to
ground-truth remote-sensing data-based interpreted lineaments by completing
mapping traverses and tracing faults along strike.

 

Sampling Methodology and Analysis

Afrilab, an accredited independent laboratory in Marrakech, Morocco, prepared
and analysed 108 samples. Rock samples were crushed with 70 % passing -2 mm.
The <2 mm fraction was pulverised, with 85 % of the sample passing <75
microns. All samples were analysed for a multi-element suite of 40 elements by
Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES). In
addition, selective samples were analysed for their gold content using a 50 g
Fire Assay method with a gravimetric finish. Given the early-stage,
reconnaissance nature of this programme, QA/QC procedures will be implemented
in subsequent phases of work.

 

Illustrations
The following figures/images have been prepared by Aterian and relate to the
disclosures in this announcement.

 

 

Work Plan for the Agdz Est Permit

·      Completion of an initial ground magnetic survey (32 line km
across 3.16 km²) to delineate subsurface structural trends

·      Targeted trenching to assess strike continuity, widths and grade
distribution

·      Ongoing mapping to identify additional priority targets across
the Agdz Est permit

 

 

Qualified Person

The technical disclosure in this regulatory announcement has been approved by
Simon Rollason, Chief Executive Officer of Aterian Plc. A graduate of the
University of the Witwatersrand in Geology (Hons). He is a Member of the
Institute of Materials, Minerals and Mining, with over 30 years of experience
in mineral exploration and mining.

 

- ENDS -

 

This announcement contains information which, prior to its disclosure, was
inside information as stipulated under Regulation 11 of the Market Abuse
(Amendment) (EU Exit) Regulations 2019/310 (as amended).

 

Engage directly with the Aterian PLC management team by asking questions,
watching video summaries, and seeing what other shareholders have to say.
Please navigate to our interactive investor hub here:
https://aterianplc.com/s/fcf8eb (https://aterianplc.com/s/fcf8eb)

 

For further information, please visit the Company's website:
www.aterianplc.com (http://www.aterianplc.com) or contact:

 

Aterian Plc:

Charles Bray, Executive Chairman - charles.bray@aterianplc.com
(mailto:charles.bray@aterianplc.com)

Simon Rollason, Director - simon.rollason@aterianplc.com
(mailto:simon.rollason@aterianplc.com)

 

Financial Adviser and Joint Broker:

AlbR Capital Limited

David Coffman / Dan Harris

Tel: +44 (0)207 7469 0930

 

Joint Broker:

SP Angel Corporate Finance LLP

Ewan Leggat / Adam Cowl

Tel: +44 20 3470 0470

 

Financial PR:

Bald Voodoo - ben@baldvoodoo.com (mailto:ben@baldvoodoo.com)

Ben Kilbey

Tel: +44 (0)7811 209 344

 

Subscribe to our news alert service: https://atn-l.investorhub.com/auth/signup
(https://atn-l.investorhub.com/auth/signup)

Notes to Editors:

About Aterian plc

www.aterianplc.com (http://www.aterianplc.com)

 

Aterian plc is an LSE-listed exploration and development company with a
diversified African portfolio of critical metals projects.

Aterian plc is actively seeking to acquire and develop new critical metal
resources to strengthen its existing asset base while supporting ethical and
sustainable supply chains as the world transitions to a sustainable, renewable
future. The supply of these metals is vital for developing the renewable
energy, automotive, and electronic manufacturing sectors, which are
increasingly important in reducing carbon emissions and meeting global climate
ambitions.

 

Aterian has a portfolio of multiple copper-silver (+ gold) and base metal
projects in Morocco. Aterian holds a 90% interest in Atlantis Metals, a
private Botswana-registered company holding eleven mineral prospecting
licences for copper-silver in the world-renowned Kalahari Copperbelt and three
for lithium and salt brine exploration in the Makgadikgadi Pans region. The
Company also holds an exploration licence in southern Rwanda, where it is
evaluating the tantalum and niobium opportunity, in addition to further
exploring for pegmatite-hosted lithium.

 

The Company's strategy is to seek new exploration and production opportunities
across the African continent and to develop new sources of critical mineral
assets for exploration, development, and trading.

Glossary of Terms

The following is a glossary of technical terms:

 

 "Ag"                              means  Silver
 "Au"                              means  Gold
 "Breccia"                         means  a rock consisting of angular lithic fragments cemented by finer materials
 "Cu"                              means  Copper
 "Ferruginous"                     means  containing iron oxides
 "Float sample"                    means  loose pieces of rock that are not connected to an outcrop
 "g/t"                             means  grams per tonne
 "Hercynian or Variscan Orogeny"   means  an orogenic belt that evolved during the Devonian and Carboniferous periods,
                                          from about 419 to 299 million years ago
 "km"                              means  Kilometres
 "m"                               means  Metres
 "mm"                              means  Millimetres
 "Mt"                              means  millions of tonnes
 "NI 43-01"                        means  National Instrument 43-101 Standards of Disclosure of Mineral Projects of the
                                          Canadian Securities Administrators
 "Outcrop"                         means  a rock formation that is in situ and visible on the surface
 "Qualified Person"                means  a person that has the education, skills and professional credentials to act as
                                          a qualified person under NI 43-101
 "Sb"                              means  Antimony is used in alloys and in lead-acid storage batteries
 "Stratiform"                      means  parallel to the bedding planes of the surrounding rock
 "Vein"                            means  a distinct sheetlike body of crystallised minerals within a rock
 "Zn"                              means  Zinc

 

 

This information is provided by RNS, the news service of the London Stock Exchange. RNS is approved by the Financial Conduct Authority to act as a Primary Information Provider in the United Kingdom. Terms and conditions relating to the use and distribution of this information may apply. For further information, please contact
rns@lseg.com (mailto:rns@lseg.com)
 or visit
www.rns.com (http://www.rns.com/)
.

RNS may use your IP address to confirm compliance with the terms and conditions, to analyse how you engage with the information contained in this communication, and to share such analysis on an anonymised basis with others as part of our commercial services. For further information about how RNS and the London Stock Exchange use the personal data you provide us, please see our
Privacy Policy (https://www.lseg.com/privacy-and-cookie-policy)
.   END  DRLPPUMCGUPQGQR



            Copyright 2019 Regulatory News Service, all rights reserved