REG - Arkle Resources PLC - Uranium Exploration Commenced in Namibia

Arkle ResourcesAnnouncement

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RNS Number : 4435U  Arkle Resources PLC  26 February 2026

26 February 2026

Arkle Resources PLC

("Arkle" or the "Company")

Uranium Exploration Commenced in Namibia

 

Geophysical Surveys Underway for Extensive Target Generation

on Arkle's Namibian Uranium Projects

 

Arkle Resources PLC (AIM: ARK), the energy metals explorer with a key focus on
uranium, is pleased to announce the initiation of its Phase 1 uranium
exploration programme in Namibia, with airborne and ground based geophysical
surveys now underway.

In January 2026, Arkle completed a transformative acquisition of four uranium
exploration licences in Namibia's Erongo Region, covering 540 km². As a
result, Arkle now provides investors with unique London Stock Exchange-listed
uranium discovery exposure in one of Africa's key uranium belts, proximal to
some of the world's largest uranium producers.

Following a successful sampling programme in 2025, which confirmed the
presence of surficial uranium on Arkle's licences, the Company is fully funded
to advance a two-phase work programme as detailed further below.

Key Geophysics Workstreams Underway

·    One of three planned lines of horizontal loop electromagnetic survey
("HLEM"), primarily to test the potential paleochannels on EPL 8995, has
already been completed (see Figure 1).

·    The HLEM survey will assist in mapping the basement rock profile of
channels allowing geophysicists to determine the potential depth and extent of
fill across the paleochannels.

·    The HLEM work is expected to be completed by early March.

·    Following the receipt of aviation permits, Xcalibur Smart Mapping, a
leader in the airborne and mapping geophysics industry, has today commenced a
substantial airborne survey of more than 12,000 line-kms at 50m-line-spacing
for extensive target generation (See Figure 2).

·    These lines will be 4x tighter than line spacing from the 1970s
government data sets, providing significantly higher resolutions to identify
both magnetic and radiometric targets on the ground.

·    The airborne survey is expected to be completed by mid-March with
final delivery of the processed data anticipated within 30 days of completion
of data acquisition.

·    Analysis of data from both these surveys will be used to prioritise
areas for follow-up mapping and sampling.  This in turn will guide the
identification of drill targets.

 Figure 1: Horizontal loop electromagnetic survey on EPL 8995      Figure 2: Xcalibur Smart Mapping aircraft

 

Phase 2 exploration work to begin in H2 2026 will focus on targets developed
from Phase 1 and will include detailed mapping (with potential for further
geophysical surveys), additional sampling, and up to 4,000 metres of Reverse
Circulation drilling.

A successful 2026 drill programme would be followed by a phase 3 programme
which would include detailed infill drilling, leading to the estimation of a
maiden Mineral Resource Estimate in H1 2027.

Initial work on EPL 7986 will be focused on mapping, sampling and developing a
model of the alaskite outcrop.

Rory Harding, Interim Chief Executive Officer, commented:

"Fortuitous contractor availability and a smooth permitting process in Namibia
has resulted in Arkle getting boots on the ground and a plane in the air
faster than anticipated. Our fully funded two phase uranium exploration
programme has started, and we are now progressing systematic geophysical work
to generate high-quality drill targets for later this year.

I believe the beginning of a sustained global nuclear expansion cycle is
underway with new projects being required to fill the forecast major supply
deficit. Arkle offers uranium exposure in one of Africa's key uranium belts,
in close proximity to some of the world's largest uranium producers. We have
an exciting period of exploration ahead of us this year."

Background on Arkle's Namibia Uranium Project

The four EPLs cover prime acreage in one of Africa's key uranium belts. This
standout uranium region contains ~1.2 Blb U₃O₈ in Measured and Indicated
Resources and ~235 Mlb U₃O₈ in Inferred Resources. The region has produced
> 350 Mlb of U₃O₈ in the last 45 years.

Arkle's EPLs 8995 and 8290 are contiguous to the Trekkopje deposit, one of the
most significant calcrete-hosted uranium deposits globally, currently under
assessment by Orano for start-up.

EPL 8298 is contiguous to the Marenica deposit which recently reported a
doubling of resource grade.

EPL 7986 is contiguous to the Rössing uranium mine, one of the world's
largest alaskite-hosted uranium deposits, which has been mined since 1976 and
is still producing over 6 Mlb per annum U₃O₈.

Work to Date on Arkle's EPLs

Multiple geochemical and radiometric (at 200m-line-spacing dataset) anomalies
have been identified on the EPLs, with 2025 grab samples assaying up to 3,855
ppm U₃O₈. Additional potential for alaskite-hosted deposits has been
identified on the EPLs.

A sampling programme was carried out in 2025 comprising 178 samples taken from
small pits dug to depths of 0.35 to 0.5 m. Highlights from the programme
included:

EPL 8995 and 8290

·    Uranium in calcrete values up to 2,782 ppm U₃O₈ - surficial
uranium confirmed in all areas surveyed

·    Uranium in alaskite values up to 3,855 ppm U₃O₈ - strong
indications of the presence of basement highs and the identification of
alaskite mineralisation surrounding Trekkopje's large paleochannel systems,
which may extend into Arkle's tenements

EPL 7986

·    Uranium in alaskite values up to 2,923 ppm U₃O₈ - adjacent to
Rössing and located on margins of the same domal structure and mineralisation

Figure 1: Uranium Project Map Showing Proximity to Uranium Deposits

Contacts:

 Arkle Resources

 Rory Harding, Interim CEO   +44 (0)20 3051 5348

 John Teeling, Chairman      +353 (0) 1 833 2833

 SP Angel Corporate Finance  Nominated Adviser & Joint Broker
 Matthew Johnson

                           +44 (0)20 3470 0470
 Charlie Bouverat

 Adam Cowl

 First Equity Limited        Joint Broker

 Jason Robertson             +44 (0)20 7374 2212

 Vigo Consulting             UK Media & IR
 Ben Simons                  +44 (0)20 7390 0234

 Safia Colebrook             arkle.ir@vigoconsulting.com (mailto:arkle.ir@vigoconsulting.com)

 Teneo                       Ireland Media

 Luke Hogg                   +353 (0) 1 661 4055

 Molly Mooney

 

About Arkle Resources

Arkle Resources PLC (LSE: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 premier 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, 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
(http://www.arkleresources.com)

Follow us on social media:

www.x.com/ArkleResources (http://www.x.com/ArkleResources)

www.linkedin.com/company/arkle-resources-plc
(http://www.linkedin.com/company/arkle-resources-plc)

 

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