REG - Andrada Mining Ltd - High-grade initial drill results at Lithium Ridge
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RNS Number : 2158S Andrada Mining Limited 09 February 2026
The information contained within this announcement is deemed by the Company to
constitute inside information as stipulated under the Market Abuse Regulations
(EU) No. 596/2014 (MAR) as in force in the United Kingdom pursuant to the
European Union (Withdrawal) Act 2018. Upon the publication of this
announcement via Regulatory Information Service (RIS), this inside information
will be in the public domain.
Andrada Mining Limited
("Andrada" or the "Company")
Inaugural high-grade drill results at Lithium Ridge demonstrate continuity, scale and polymetallic upside
Andrada Mining Limited (AIM: ATM, OTCQB: ATMTF) ("Andrada"), a tin producer with a portfolio of critical minerals mining and exploration assets in Namibia, is pleased to announce high-grade intersections from the initial batch of diamond drilling results at Lithium Ridge ("Lithium Ridge" or the "Project") which is being advanced in partnership with Sociedad Química y Minera de Chile SA through its subsidiary SQM Australia (Pty) Ltd ("SQM"). The drilling confirms high-grade lithium mineralisation from surface to drill depth, together with meaningful tin and tantalum mineralisation, reinforcing Lithium Ridge's potential to evolve into a large-scale, long-life polymetallic asset. These results are part of the ongoing Stage 1 exploration programme under the previously announced earn-in agreement, pursuant to which SQM may earn a 30% interest in the Project.
HIGHLIGHTS
§ Consistent mineralisation: Lithium mineralisation was intersected in most
of the holes reported, confirming mineralisation from surface down to a depth
of 160m (LDR011).
§ Significant lithium intercepts: selected noteworthy and high-grade lithium
intercepts include;
− Drill hole LRD003: 9.63m @ 2.12% Li(2)O from 36.66m to 46.29m
· including 5.74m @ 3.02% Li(2)O from 38.00m to 43.74m
− Drill hole LRD010: 24.44m @ 1.38% Li(2)O from 55.44m to 79.88m
· Including 14.57m @ 1.73% Li(2)O from 64.87m to 79.44m
− Drill hole LRD011: 16.81m @ 1.51% Li(2)O from 68.30m to 85.11m
· Including 4.81m @ 1.98% Li(2)O from 80.30m to 85.11m
§ Compelling polymetallic upside: significant associated tin (Sn) and
tantalum (Ta) mineralisation with notable intersections including;
− Drill hole LRD001: 2.57m @ 1.98% Sn and 227ppm Ta from 70.88m to
73.45m
− Drill hole LRD011: 0.89m @ 1.33% Sn and 247ppm Ta from 88.46m to
89.35m
§ Stage 1 exploration programme progressing on schedule: regular updates to
be published as results are received and milestones achieved.
Anthony Viljoen, Chief Executive Officer, commented:
"We are extremely pleased to announce these exceptional drill results from Lithium Ridge, which validate our confidence in this asset as a potential world-class lithium discovery. These drill results build on the recent high-grade grab sample results and show the continuity of lithium mineralisation at depth. The high-grade intersections, with results reaching up to 3.02% Li₂O, demonstrate the impressive nature of the mineralisation across the project area. These results not only confirm the continuity of lithium mineralisation from surface but also showcase the substantial polymetallic potential with meaningful tin and tantalum credits that will enhance project economics. Lithium Ridge clearly represents an early-entry opportunity for Andrada into Africa's emerging lithium sector, supported by our partnership with global leader SQM.
With drilling progressing on schedule and new spodumene-bearing pegmatites identified through the ongoing geological mapping campaign, we are confident that subsequent results from the Stage 1 drilling campaign will continue to build on this strong foundation."
Overview of results
The Stage 1 drill programme is progressing on schedule and has been designed
to comprise approximately 14 000 metres of orientated diamond core drilling
across 120 planned drill holes, to determine the depth extent and continuity
of the pegmatites within the license area. The drill programme commenced in
August 2025 and aims to test mineralisation within both previously known and
recently discovered pegmatites. These results are for the first 15 holes
representing 1 328 metres of drilling that yielded 496 samples for analysis,
including QA/QC.
The results reported as "Whole Intersection" in Table 1 indicate pegmatite
intersections from the top to the bottom contact. Where these intersections
contain schistose xenoliths, reported results provide the metal content of the
actual pegmatite intersections excluding the schistose intervals.
Intersections reported as "Including", represent selected higher-grade
intervals within the total intersection of the selected pegmatites. All the
drill holes were drilled at inclined angles from the horizontal, and the
reported pegmatite intersections should, therefore, be considered to represent
apparent widths.
Table 1: Results of the intersected mineralised pegmatites with the intersection depths, lengths and grades reported. Intersections described as 'Including' refer to a portion of the whole pegmatite intersection with significant metal values. The reported intersections are indicative of apparent thickness, which is greater than true thickness.
Hole ID Dip Angle (Degrees) Intersection Type From - To (metres) Length (m) Grades
Li₂O (%) Sn (%) Ta (ppm)
LRD001 -60 Whole Intersection 61.79 - 62.04 0.25 0.01 0.06 290
Whole Intersection 70.88 - 73.45 2.57 0.50 1.98 227
Whole Intersection 78.49 - 79.35 0.86 0.06 0.36 41
LRD002 -60 Whole Intersection 29.85 - 40.15 10.30 0.82 0.05 50
Including 36.09 - 37.09 1.00 3.41 0.06 11
LRD003 -60 Whole Intersection 35.17 - 35.85 0.68 0.15 0.13 52
Whole Intersection 36.66 - 46.29 9.63 2.12 0.08 36
Including 38.00 - 43.74 5.74 3.02 0.08 30
LRD004 -60 Whole Intersection 12.20 - 12.45 0.25 0.05 0.01 112
Whole Intersection 35.00 - 45.25 10.25 1.02 0.08 38
Including 36.98 - 41.49 4.51 1.68 0.03 25
LRD005 -60 Whole Intersection 28.03 - 41.02 12.99 0.60 0.05 113
Including 33.54 - 37.19 3.65 1.75 0.04 48
Whole Intersection 43.23 - 43.52 0.29 0.02 0.05 121
LRD006 -60 Whole Intersection 20.06 - 22.67 2.61 1.07 0.11 49
Including 20.42 - 21.42 1.00 2.12 0.06 40
Whole Intersection 23.13 - 23.90 0.77 0.21 0.41 96
LRD007 -60 Whole Intersection 30.95 - 32.43 1.48 0.10 0.29 82
Whole Intersection 36.55 - 40.27 3.72 0.18 0.23 64
Whole Intersection 41.58 - 42.21 0.63 0.20 0.16 76
LRD008 -60 Whole Intersection 13.32 - 16.60 3.28 1.32 0.25 90
Whole Intersection 24.43 - 24.90 0.47 0.02 0.05 106
Whole Intersection 25.15 - 25.71 0.56 0.18 0.06 147
Whole Intersection 34.42 - 34.99 0.57 0.10 0.09 100
Whole Intersection 35.69 - 36.92 1.23 0.12 0.06 110
Whole Intersection 38.62 - 45.11 6.49 1.03 0.29 115
Whole Intersection 48.03 - 49.57 1.54 1.26 0.57 80
Whole Intersection 51.26 - 67.97 16.71 1.36 0.11 41
Including 52.26 - 56.92 4.66 2.00 0.14 29
LRD009 -60 Whole Intersection 81.84 - 83.67 1.83 0.09 0.18 101
Whole Intersection 161.37 - 163.69 2.32 0.09 0.13 39
LRD010 -60 Whole Intersection 22.13 - 22.38 0.25 1.05 0.26 135
Whole Intersection 22.63 - 24.01 1.38 0.44 0.23 127
Whole Intersection 37.69 - 38.34 0.65 0.24 0.09 135
Whole Intersection 55.44 - 79.88 24.44 1.38 0.23 71
Including 64.87 - 79.44 14.57 1.73 0.32 54
Hole ID Dip Angle (Degrees) Intersection Type From - To (metres) Length (m) Grades
Li₂O (%) Sn (%) Ta (ppm)
LRD011 -60 Whole Intersection 13.52 - 13.84 0.32 0.02 0.12 256
Whole Intersection 29.90 - 30.33 0.43 0.06 0.05 263
Whole Intersection 57.18 - 59.62 2.44 0.97 0.15 88
Whole Intersection 65.65 - 66.00 0.35 1.43 0.05 129
Whole Intersection 67.80 - 68.05 0.25 0.22 0.17 59
Whole Intersection 68.30 - 85.11 16.81 1.51 0.24 88
Including 80.30 - 85.11 4.81 1.98 0.21 70
Whole Intersection 88.46 - 89.35 0.89 0.77 1.33 247
Whole Intersection 95.54 - 96.79 1.25 0.23 0.08 283
Whole Intersection 103.13 - 103.38 0.25 0.08 0.04 150
Whole Intersection 121.75 - 124.20 2.45 0.76 0.06 112
Whole Intersection 128.78 - 129.03 0.25 0.04 0.15 228
Whole Intersection 130.01 - 137.25 7.24 1.26 0.10 58
Including 131.43 - 136.70 5.27 1.51 0.11 59
Whole Intersection 143.95 - 144.40 0.45 0.06 0.20 281
Whole Intersection 145.75 - 146.00 0.25 0.09 0.16 174
Whole Intersection 150.06 - 150.31 0.25 0.12 0.20 67
Whole Intersection 152.17 - 153.31 1.14 0.22 0.19 52
Whole Intersection 161.71 - 166.12 4.41 1.33 0.11 38
Including 162.86 - 163.98 1.12 3.32 0.04 10
Whole Intersection 174.07 - 174.32 0.25 0.05 0.03 201
LRD012 -60 Whole Intersection 11.66 - 19.78 8.12 0.41 0.19 51
Whole Intersection 21.53 - 26.86 5.33 0.71 0.15 85
LRD013 -60 Whole Intersection 20.25 - 22.95 2.70 0.08 0.17 47
LRD016 -50 Whole Intersection 86.73 - 87.55 0.82 0.02 0.05 174
Whole Intersection 90.19 - 93.08 2.89 0.17 0.14 57
LRD018 -60 Whole Intersection 13.03 - 18.24 5.21 0.07 0.25 31
Pegmatite intersections which have not met at least one of the metal contents
cut off criteria (>0.25% Li₂O, >0.1% Sn or >99ppm Ta) have not been
reported as they are not currently considered to be of economic significance.
Spodumene has been visually identified as the primary lithium mineral by the
geological teams on site. Tin and tantalum grades have been highlighted as
these metals are considered indicative of lithium bearing pegmatites and
present economic upside as potential byproducts. Downhole orientation surveys
were undertaken for each hole at regular intervals while the hole was
advancing and surveyed again in totality after drilling was completed. The
surveys were done using a magnetic deviation probe that collected readings at
two metre intervals. Collar locations were surveyed using a handheld GPS.
Each drill hole was geologically and structurally logged before being cut and
sampled as quarter core. The sampling programme attempted to follow geological
contacts while also maintaining consistency in data representativity. The
shortest sampled length was 25cm while the longest length was limited to 125cm
wherever possible. Once sampled, the material was submitted to SA Labs Ithuba
for pulverisation and homogenisation, with the pulps subsequently dispatched
to UIS Analytical Services for geochemical analysis. Both contractors are
certified, independent laboratories. A sodium peroxide fusion coupled with
ICP-OES analysis was used to determine Li and other major element
concentrations, while lithium borate fusion with ICP-MS analysis was performed
to determine Sn, Ta and other minor or trace element concentrations. No top
cut was applied in calculating the weighted average grades for mineralised
intersections within the pegmatites.
As previously announced, the Company will continue to provide regular updates
as significant results are received and milestones achieved.
Figure 1: Map showing the locations of the completed and planned diamond drill (DD) holes (circles) from this campaign and the reverse circulation (RC) drill holes (triangles) completed during the 2023 campaign. The line A-A' represents the cross section in Figure 2.
Figure 2: Section line A-A' displaying a projection of the diamond drill hole, LDR011, for which results are reported in this announcement and the RC drill hole, ATNN20, which was drilled during the 2023 campaign. The mineralised intersections from LDR011 are reported in Table 1.
Competent Person statement
The technical data in this announcement has been reviewed by
Professor Laurence Robb ("Prof. Robb"), who is a non-executive director of
Andrada. Prof. Robb has over 30 years industry related exploration and
economic geology experience and is a Competent Person for the reporting of
exploration results. He has reviewed both the technical disclosures in this
release as well as the quality assurance protocols (QA/QC) and results for
this programme.
Glossary of abbreviations
% Symbol for percentage
DD Diamond Drill
ICP-MS Inductively Coupled Plasma-Mass Spectrometry
ICP-OES Inductively Coupled Plasma-Optical Emission Spectrometry
Li Symbol for Lithium
Li → Li₂O Metal to metal-oxide conversion factor of 2.153
Li₂O Lithium oxide
PPM Parts Per Million
RC Reverse Circulation Drill
QA/QC Quality Assurance / Quality Control
Sn Symbol for Tin
Ta Symbol for Tantalum
Glossary of technical Terms
Apparent thickness The relationship between apparent width and true thickness is based on the
formula by Addie (1968 Economic Geology, vol 63, pp 188-189).
Dip Angle The angle of inclination measured downward from horizontal.
Geological Model The interpretation of mineralisation and geology that controls the shape of
the mineralised unit. This is usually generated in a three-dimensional
computer environment.
Pegmatite An igneous rock typically of granitic composition, which is distinguished from
other igneous rocks by the extremely coarse size of its crystals, or by an
abundance of crystals with skeletal, graphic, or other strongly directional
growth habits, or by a prominent spatial zonation of mineral assemblages.
Xenolith A foreign rock fragment (e.g., schist) within an intrusive body (e.g.,
pegmatite) that is unrelated to the igneous body.
CONTACT
ANDRADA MINING LIMITED
Anthony Viljoen, CEO +27 (11) 268 6555
Sakhile Ndlovu, Head of Investor Relations
NOMINATED ADVISOR & BROKER
Zeus Capital Limited +44 (0) 20 2382 9500
Katy Mitchell
Andrew de Andrade
Harry Ansell
CORPORATE BROKER & ADVISOR
H&P Advisory Limited +44 (0) 20 7907 8500
Andrew Chubb
Jay Ashfield
Matt Hasson
Berenberg +44 (0) 20 3753 3040
Jennifer Lee
FINANCIAL PUBLIC RELATIONS
Tavistock (United Kingdom) +44 (0) 207 920 3150
Emily Moss
andrada@tavistock.co.uk
Josephine Clerkin
About Andrada Mining Limited
Andrada Mining Limited, listed on the London Stock Exchange's AIM market, is a
tin producer with a portfolio of critical minerals mining and exploration
assets in Namibia, a premier investment destination in Africa. The Company's
strategy focuses on unlocking Namibia's abundant mineral resources via
best-in-class strategic partnerships across its resource base, enhancing the
country's reputation as a leading global hub for African critical mineral
investment. Andrada is actively scaling up tin production alongside lithium,
tantalum, tungsten and copper, steadily broadening its operational footprint
and output. The Company aims to supply critical raw materials from its
extensive resource portfolio to support a sustainable future, improve quality
of life, and uplift communities near its operations. These critical metals
play a crucial role in the green energy transition, serving as essential
components for electric vehicles, solar panels, and wind turbines.
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