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")
Brandberg West Inaugural
Drill Results
Notable mineral intersections
for tin, tungsten and copper
Andrada Mining Limited (AIM: ATM, OTCQB: ATMTF), a
critical raw materials producer with mining and exploration assets
in Namibia, is pleased to provide results from its inaugural
drilling programme undertaken at the historical Brandberg West
mine, situated within the EPL5445 exploration licence. The
objective of this programme is to provide an initial indication of
the grade potential and geology of the historical open pit area and
to investigate the potential mineralisation of the northern
extensions. These results constitute the first batch of samples
from this programme, representing ten (10) out of the twenty (20)
holes drilled.
Highlights
All drill holes intersected mineralisation
representing the primary metals of interest, namely tin
("Sn"), tungsten
("W") and copper
("Cu"). Significant drill
intersections include:
§ Drill hole AT3 10:
− 0.86 m at
0.15% Sn, 2.42% W and 0.46%
Cu from 30.55 m to 31.41 m
− 2.88 m at 0.78% Sn, 2.65% W and 0.80% Cu from 65.28 m to
68.16 m
− 1.27 m at
0.03% Sn, 1.40% W and 0.69% Cu from 74.03 m to 75.30 m
− 1.02 m at
0.12% Sn, 2.54% W and 0.62%
Cu from 100.63 m to 101.65 m
− 0.39 m at
0.30% Sn, 0.01% W and 3.85%
Cu from 112.36 m to 112.75 m
§ Drill hole AT3
21:
− 1.68 m at
0.62% Sn, 0.93% W and 0.73% Cu from 46.56 m to 48.24 m
− 4.22 m at 1.12% Sn,
0.83% W and 1.40% Cu from 110.88 m to 115.10 m
− 1.69 m at
0.53% Sn, 1.08% W and 0.96% Cu from 183.92 m to 185.61 m
§ Drill hole AT3
03:
−
1.22 m at 0.95% Sn, 1.15% W and 0.99% Cu from 10.02 m to
11.24 m
−
0.85 m at 1.66% Sn, 0.46% W and 2.19% Cu from 38.76 m to 39.61
m
−
0.89 m at 0.17% Sn, 1.12% W and 1.37% Cu from 42.30 m to
43.19 m
−
0.40 m at 2.01% Sn,
1.65% W and 0.66% Cu from 68.87 m to 69.27 m
−
0.49 m at 4.47% Sn,
0.02% W and 0.91% Cu from 107.51 m to 108.00 m
−
0.45 m at 1.06% Sn, 0.66% W and 0.77% Cu from 112.35 m to
112.80 m
−
0.74 m at 1.49% Sn, 0.82% W and 0.41% Cu from 134.97 m to
135.71 m
§ Drill hole AT3 05:
− 0.84 m at
4.17% Sn, 0.12% W and 0.53%
Cu from 10.02 m to 11.24 m
Anthony Viljoen, Chief Executive Officer,
commented:
"The
Brandberg West project's initial drilling results are highly
encouraging featuring significant high-grade intersections of tin,
tungsten and copper. These intersections, with grades of up to 4%
for tin, over 2% for tungsten and typically 0.5% - 2% for copper,
underscore the licence's commercial potential. Notably, Brandberg
West expands Andrada's portfolio of critical metals to include
tungsten and copper. This reinforces the Company's belief that the
Erongo region, in Namibia is a promising mineral - rich area with
substantial inventory to support our key objective to grow the
resource base. Furthermore, the results validate our approach of
developing areas with historical mining activity to bolster our
portfolio."
Brandberg West
The Brandberg West project is situated within
exploration license EPL 5445 in the Erongo region of Namibia. The
project area is approximately 100km from the Uis Tin Mine, Andrada
Mining's flagship asset. The historical open pit mine at Brandberg
West was owned and operated by Gold Fields Limited until operations
ceased in the 1980's, with the cessation of exploration activities
coinciding with a global collapse of the tin price.
The historical Brandberg West mine produced a
tin and tungsten concentrate with secondary copper being reported
but never concentrated and sold. The mineralisation occurs within
multiple generations of quartz veins that trend east - west and
northwest - southeast. Most of these mineralised veins are
subvertical and well exposed within the historically mined areas
and surrounding areas. These quartz veins are hosted by the
metasediments of the Zebraputs Formation, with overlying marble
unit having acted as an impermeable barrier to the mineralising
fluids.
Exploration Programme
The exploration programme comprised 20
oriented Diamond Drill (DD) holes for a total of 2 975m
drilled. The results of the first 10 drill holes, representing 1
471 drill meters, are reported in this announcement.
This drill programme sought to investigate the subsurface
continuity and metal endowment of the quartz veins within the
historical pit and in the mineralised extensions identified at
surface to the north. All holes were drilled at dip angles of 60°
or 45° to target the steeply dipping mineralised veins. These
intersections should be considered as apparent widths, which are
greater than true widths because of the non-perpendicular angles of
intersection.
The metals reported herein, namely Sn, W and
Cu, represent the primary focus of this drilling campaign.
Anomalous concentrations of silver and gallium were identified in
several of the analysed samples. The economic potential of these
metals will be investigated as the project evolves. The results of
this programme will be utilised to produce an updated geological
model which will form the basis of any follow-up exploration
programmes.
Table: Mineralised drill
intersections from this programme. The reported intersections were
selected using a 0.2% cut off for Sn, W and Cu. Where multiple
samples were taken from a single quartz vein, the results were
combined to provide a length-weighted average grade for the
vein.
Hole ID
|
Dip Angle
(Degrees)
|
From - To
|
Length (m)
|
Lithology
|
Sn (%)
|
W (%)
|
Cu (%)
|
AT3 03
|
-45
|
1.80 -
2.14
|
0,34
|
Quartz
vein
|
0,01
|
0,03
|
0,24
|
2.14 -
4.00
|
1,86
|
Schist
|
0,02
|
0,01
|
1,02
|
10.02 -
11.24
|
1,22
|
Quartz
vein
|
0,95
|
1,15
|
0,99
|
12.36 -
14.00
|
1,64
|
Quartz
vein
|
0,62
|
0,02
|
1,69
|
25.46 -
25.73
|
0,27
|
Quartz
vein
|
0,53
|
0,49
|
0,12
|
28.96 -
29.69
|
0,73
|
Quartz
vein
|
0,04
|
0,00
|
0,55
|
38.76 -
39.61
|
0,85
|
Quartz
vein
|
1,66
|
0,46
|
2,19
|
40.39 -
41.77
|
1,38
|
Quartz
vein
|
0,06
|
0,29
|
0,19
|
42.30 -
43.19
|
0,89
|
Quartz
vein
|
0,17
|
1,12
|
1,37
|
44.12 -
44.54
|
0,42
|
Quartz
vein
|
0,04
|
0,01
|
0,61
|
58.00 -
58.75
|
0,75
|
Quartz
vein
|
0,03
|
0,00
|
1,62
|
68.87 -
69.27
|
0,40
|
Quartz
vein
|
2,01
|
1,65
|
0,66
|
70.21 -
70.75
|
0,54
|
Quartz
vein
|
0,20
|
0,05
|
0,85
|
90.36 -
91.24
|
0,88
|
Quartz
vein
|
0,14
|
0,03
|
1,21
|
98.89 -
99.20
|
0,31
|
Quartz
vein
|
0,21
|
0,75
|
0,53
|
100.29 -
101.41
|
1,12
|
Quartz
vein
|
0,12
|
0,02
|
0,28
|
107.51 -
108.00
|
0,49
|
Quartz
vein
|
4,47
|
0,02
|
0,91
|
112.35 -
112.80
|
0,45
|
Quartz
vein
|
1,06
|
0,66
|
0,77
|
129.41 -
130.71
|
1,30
|
Quartz
vein
|
0,24
|
0,00
|
0,11
|
134.97 -
135.71
|
0,74
|
Quartz
vein
|
1,49
|
0,82
|
0,41
|
139.92 -
140.81
|
0,89
|
Quartz
vein
|
0,65
|
0,59
|
1,59
|
163.14 -
163.59
|
0,45
|
Quartz
vein
|
0,03
|
0,01
|
1,25
|
AT3 05
|
-60
|
3.87 -
6.09
|
2,22
|
Schist
|
0,28
|
0,01
|
0,03
|
39.54 -
40.38
|
0,84
|
Quartz
vein
|
4,17
|
0,12
|
0,53
|
59.70 -
60.70
|
1,00
|
Quartz
vein
|
0,03
|
0,02
|
0,24
|
62.49 -
63.37
|
0,88
|
Quartz
vein
|
0,04
|
0,04
|
0,36
|
68.50 -
69.29
|
0,79
|
Quartz
vein
|
0,02
|
0,00
|
0,28
|
95.87 -
96.12
|
0,25
|
Quartz
vein
|
0,02
|
0,00
|
0,42
|
98.38 -
98.88
|
0,50
|
Quartz
vein
|
0,04
|
0,00
|
0,42
|
126.38 -
127.65
|
1,27
|
Quartz
vein
|
0,30
|
0,01
|
0,18
|
140.98 -
141.82
|
0,84
|
Quartz
vein
|
0,95
|
0,10
|
0,63
|
153.7 -
154.85
|
1,15
|
Quartz
vein
|
0,02
|
0,00
|
0,21
|
Hole ID
|
Dip Angle
(Degrees)
|
From - To
|
Length (m)
|
Lithology
|
Sn (%)
|
W (%)
|
Cu (%)
|
AT3 10
|
-60
|
20.61 -
22.41
|
1,80
|
Greisen
|
0,02
|
0,66
|
0,06
|
25.95 -
26.54
|
0,59
|
Quartz
Vein
|
0,01
|
1,03
|
0,28
|
30.55 -
31.41
|
0,86
|
Quartz
Vein
|
0,15
|
2,42
|
0,46
|
32.40 -
33.19
|
0,79
|
Schist
|
0,04
|
0,03
|
0,40
|
37.84 -
38.36
|
0,52
|
Quartz
Vein
|
0,24
|
0,38
|
0,10
|
42.86 -
44.66
|
1,80
|
Quartz
Vein
|
0,31
|
0,53
|
0,21
|
54.75 -
56.09
|
1,34
|
Schist
|
0,23
|
0,06
|
0,06
|
65.28 -
68.16
|
2,88
|
Quartz
Vein
|
0,78
|
2,65
|
0,80
|
74.03 -
75.30
|
1,27
|
Quartz
Vein
|
0,03
|
1,40
|
0,69
|
86.48 -
87.23
|
0,75
|
Schist
|
0,04
|
0,01
|
0,26
|
100.63 -
101.65
|
1,02
|
Quartz
vein
|
0,12
|
2,54
|
0,62
|
112.36 -
112.75
|
0,39
|
Quartz
vein
|
0,30
|
0,01
|
3,85
|
134.00 -
135.00
|
1,00
|
Schist
|
0,08
|
0,01
|
0,97
|
AT3 11
|
-60
|
1.00 -
1.90
|
0,90
|
Quartz
vein
|
1,13
|
0,23
|
0,71
|
38.55 -
39.24
|
0,69
|
Quartz
vein
|
0,10
|
0,91
|
0,29
|
39.24 -
39.77
|
0,53
|
Schist
|
0,01
|
0,02
|
0,20
|
49.85 -
50.69
|
0,84
|
Quartz
vein
|
2,90
|
0,15
|
0,04
|
55.66 -
56.46
|
0,80
|
Schist
|
0,29
|
0,02
|
0,04
|
57.00 -
58.23
|
1,23
|
Quartz
vein
|
1,65
|
0,18
|
0,37
|
87.00 -
88.12
|
1,12
|
Schist
|
0,01
|
0,04
|
0,26
|
88.12 -
89.02
|
0,90
|
Quartz
vein
|
0,04
|
0,05
|
0,39
|
91.00 -
92.00
|
1,00
|
Schist
|
0,02
|
0,03
|
0,25
|
92.98 -
93.63
|
0,65
|
Quartz
vein
|
0,76
|
0,67
|
0,29
|
94.62 -
95.43
|
0,81
|
Schist
|
0,02
|
0,04
|
0,70
|
95.43 -
96.31
|
0,88
|
Quartz
vein
|
0,02
|
0,01
|
0,29
|
117.71 -
118.13
|
0,42
|
Quartz
vein
|
0,02
|
0,02
|
0,28
|
126.45 -
127.29
|
0,84
|
Schist
|
0,02
|
0,02
|
0,29
|
127.29 -
127.74
|
0,45
|
Quartz
vein
|
0,01
|
0,01
|
0,25
|
150.19 -
151.00
|
0,81
|
Schist
|
0,01
|
0,00
|
0,28
|
154.77 -
155.04
|
0,27
|
Quartz
vein
|
0,02
|
0,00
|
0,42
|
159.82 -
161.07
|
1,25
|
Quartz
vein
|
0,02
|
0,72
|
0,30
|
188.45 -
189.19
|
0,74
|
Quartz
vein
|
0,03
|
0,01
|
0,24
|
Hole ID
|
Dip Angle
(Degrees)
|
From - To
|
Length (m)
|
Lithology
|
Sn (%)
|
W (%)
|
Cu (%)
|
AT3 12
|
-60
|
1.53 -
2.47
|
0,94
|
Quartz
vein
|
0,09
|
1,88
|
0,40
|
4.65 -
5.64
|
0,99
|
Quartz
vein
|
0,12
|
0,18
|
0,57
|
5.64 -
6.47
|
0,83
|
Schist
|
0,07
|
0,03
|
0,26
|
17.00 -
18.06
|
1,06
|
Quartz
vein
|
0,07
|
1,09
|
0,64
|
37.00 -
39.77
|
2,77
|
Quartz
vein
|
0,02
|
0,62
|
0,16
|
42.00 -
42.99
|
0,99
|
Quartz
vein
|
0,04
|
0,05
|
0,21
|
56.14 -
56.95
|
0,81
|
Quartz
vein
|
0,01
|
0,38
|
0,01
|
73.55 -
74.09
|
0,54
|
Quartz
vein
|
0,13
|
0,01
|
0,62
|
85.835 -
88.00
|
2,17
|
Quartz
vein
|
0,01
|
0,30
|
0,08
|
117.15 -
118.21
|
1,06
|
Schist
|
0,05
|
0,12
|
0,08
|
127.17 -
128.26
|
1,09
|
Quartz
vein
|
0,73
|
1,48
|
0,22
|
134.19 -
134.45
|
0,26
|
Quartz
vein
|
0,02
|
0,35
|
0,11
|
135.27 -
135.91
|
0,64
|
Quartz
vein
|
0,01
|
0,01
|
0,64
|
142.94 -
143.53
|
0,59
|
Quartz
vein
|
0,15
|
0,00
|
0,35
|
152.38 -
152.75
|
0,37
|
Quartz
vein
|
0,29
|
0,31
|
0,32
|
AT3 21
|
-60
|
18.00 -
18.77
|
0,77
|
Quartz
vein
|
0,14
|
0,02
|
0,31
|
19.40 -
19.95
|
0,55
|
Schist
|
0,17
|
0,12
|
0,19
|
19.95 -
20.78
|
0,83
|
Quartz
vein
|
0,02
|
0,01
|
0,28
|
20.78 -
21.49
|
0,71
|
Schist
|
0,02
|
0,00
|
0,38
|
39.71 -
41.70
|
1,99
|
Schist
|
0,64
|
0,06
|
0,36
|
46.56 -
48.24
|
1,68
|
Quartz
vein
|
0,62
|
0,93
|
0,73
|
71.98 -
73.81
|
1,83
|
Quartz
vein
|
0,48
|
0,19
|
0,14
|
83.78 -
84.62
|
0,84
|
Quartz
vein
|
0,01
|
0,00
|
0,30
|
85.62 -
86.54
|
0,92
|
Quartz
vein
|
0,04
|
0,00
|
0,60
|
87.20 -
88.39
|
1,19
|
Quartz
vein
|
0,02
|
0,53
|
0,19
|
106.22 -
107.00
|
0,78
|
Schist
|
0,12
|
0,06
|
0,31
|
110.88 -
115.10
|
4,22
|
Quartz
vein
|
1,12
|
0,83
|
1,40
|
117.93 -
119.34
|
1,41
|
Quartz
vein
|
0,28
|
0,38
|
0,94
|
145.84 -
148.06
|
2,22
|
Quartz
vein
|
0,02
|
0,00
|
0,19
|
166.65 -
167.51
|
0,86
|
Schist
|
1,44
|
0,01
|
0,28
|
168.15 -
169.08
|
0,93
|
Quartz
vein
|
0,40
|
0,00
|
0,26
|
175.47 -
176.09
|
0,62
|
Quartz
vein
|
0,14
|
0,01
|
1,71
|
183.92 -
185.60
|
1,69
|
Quartz
vein
|
0,53
|
1,08
|
0,96
|
AT4 23
|
-60
|
30.15 -
31.09
|
0,94
|
Quartzite
|
0,02
|
0,00
|
0,34
|
69.73 -
70.90
|
1,17
|
Schist
|
0,03
|
0,01
|
0,48
|
74.91 -
75.18
|
0,27
|
Quartz
vein
|
0,10
|
0,00
|
0,85
|
AT5 13
|
-60
|
24.72 -
25.72
|
1,00
|
Schist
|
0,01
|
0,34
|
0,03
|
31.27 -
31.58
|
0,31
|
Quartz
vein
|
0,03
|
0,13
|
1,68
|
55.72 -
57.63
|
1,91
|
Quartz
vein
|
0,01
|
0,26
|
0,06
|
AT5 16
|
-60
|
25.80 -
26.16
|
0,36
|
Quartz
vein
|
0,03
|
1,34
|
0,23
|
65.04 -
65.29
|
0,25
|
Quartz
vein
|
0,13
|
0,41
|
0,37
|
69.12 -
70.12
|
1,00
|
Schist
|
0,01
|
0,05
|
0,31
|
Hole ID
|
Dip Angle
(Degrees)
|
From - To
|
Length (m)
|
Lithology
|
Sn (%)
|
W (%)
|
Cu (%)
|
AT5 20
|
-60
|
6.80 -
7.31
|
0,51
|
Quartz
vein
|
1,17
|
0,29
|
0,37
|
19.40 -
19.67
|
0,27
|
Quartz
vein
|
0,07
|
1,96
|
0,32
|
31.92 -
32.49
|
0,57
|
Quartz
vein
|
0,06
|
1,50
|
0,52
|
46.72 -
47.00
|
0,28
|
Quartz
vein
|
0,19
|
0,54
|
0,23
|
75.00 -
75.64
|
0,64
|
Schist
|
0,02
|
0,01
|
0,42
|
83.35 -
85.83
|
2,48
|
Quartz
vein
|
1,71
|
0,78
|
0,82
|
95.88 -
96.38
|
0,50
|
Quartz
vein
|
0,01
|
0,01
|
0,33
|
98.06 -
98.75
|
0,69
|
Quartz
vein
|
0,01
|
0,04
|
0,22
|
Downhole orientation surveys using a magnetic
deviation probe at two (2) metre intervals were completed for each
hole after drilling, and collar locations were surveyed using a
differential GPS. Veins that did not meet the metal content cut off
criteria have not been reported as they are not currently
considered to be of economic significance.
Each drill hole was geologically and
structurally logged and sampled as half core. The sampling
programme attempted to follow geological contacts while also
maintaining consistency in data representativeness The shortest
sampled length was 25cm while the longest was limited to 125cm
wherever possible. Once sampled, the material was dispatched to the
laboratory for preparation and analysis. Sample analysis was
undertaken by UIS Analytical Services, a certified independent
laboratory in South Africa, using a lithium borate fusion.
ICP-OES analysis was utilised for major and minor elements whilst
ICP-MS was utilised for the trace elements, including Sn, W and Cu.
No top cut was applied in calculating the weighted average grades
for mineralised intersections.
Figure 1: Map displaying the
localities of the reported holes. Line A-A' indicates the area
represented by the cross section in Figure 2
below.
Figure 2: Section line A-A' displaying a projection of the drill hole
AT3 03. Only selected intersections in the drill hole are labelled;
the complete set of mineralised vein intersections is listed in
Table 1. The veins shown here have been extrapolated a small
distance from the drill hole and have been orientated in line with
structural measurements from the core logs.
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 Mining. Prof.
Robb has over 30 years of 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
|
Cu
|
Symbol for Copper
|
DD
|
Diamond Drilling
|
ICP-MS
|
Inductively Coupled Plasma-Mass
Spectrometry
|
ICP-OES
|
Inductively Coupled Plasma-Optical Emission
Spectrometry
|
QA/QC
|
Quality Assurance / Quality
Control
|
Sn
|
Symbol for Tin
|
W
|
Symbol for Tungsten
|
GLossary of technical
terms
Apparent Thickness
|
The thickness of a drill hole intersection at a
non-perpendicular angle to the dip of the mineralised body, which
is always greater than the true thickness by an amount proportional
to the angular difference between the intersection trace and the
perpendicular
|
Dip Angle
|
The angle of inclination measured
downward from horizontal
|
Geological Model
|
The interpretation of mineralisation
and host rock geology. This is usually generated in a
three-dimensional computer environment
|
Greisen
|
Type of phyllic alteration) characterized by
micas, quartz and other accessory minerals
|
Quartz Vein
|
Distinct, sheet-like body of crystallized
quartz within a host lithology, formed when hydrothermal fluids
precipitate minerals while circulating through fractures or
cavities.
|
Schist
|
A metasedimentary unit showing
pronounced schistosity
|
Top Cut
|
The technique of restricting the
grade of outlier high-grade samples during geostatistical averaging
or estimation methodologies to prevent overestimation
|
CONTACT
Andrada Mining
Anthony
Viljoen, CEO
Sakhile
Ndlovu, Investor Relations
|
+27 (11)
268 6555
|
NOMINATED ADVISOR &
BROKER
|
|
Zeus Capital
Katy
Mitchell
Harry
Ansell
Andrew de
Andrade
|
+44 (0) 20 2382 9500
|
CORPORATE BROKER &
ADVISOR
|
|
H&P Advisory Limited
Andrew
Chubb
Jay
Ashfield
Matt
Hasson
|
+44 (0) 20
7907 8500
|
Berenberg
Jennifer
Lee
Natasha
Ninkov
|
+44 (0) 20
3753 3040
|
FINANCIAL PUBLIC
RELATIONS
|
|
Tavistock (United Kingdom)
Emily
Moss
Josephine
Clerkin
|
+44 (0) 207
920 3150
andrada@tavistock.co.uk
|
About Andrada Mining
Limited
Andrada Mining Limited is listed on
the London Stock Exchange (AIM) with mining assets in Namibia, a
top-tier investment jurisdiction in Africa. Andrada strives to
produce critical raw materials from a large resource portfolio, to
contribute to a more sustainable future, improved living conditions
and the upliftment of communities adjacent to its operations.
Leveraging its strong foundation in Namibia, Andrada is on a
strategic path to becoming a leading African producer of critical
metals including lithium, tin, tungsten and tantalum. These metals
are important enablers of the green energy transition, being
essential for components of electric vehicles, solar panels and
wind turbines.