7 May 2024
Dog-Leg Delivers Further
High-grade Intersections
Resource
Extension Drilling Results
Ewoyaa Lithium
Project, Ghana, West Africa
27m at 1.85% Li2O from
126m returned at Dog-Leg target, outside of current
MRE1
Atlantic Lithium Limited (AIM: ALL, ASX: A11, OTCQX:
ALLIF, "Atlantic Lithium" or the "Company"), the African-focused
lithium exploration and development company targeting to deliver
Ghana's first lithium mine, is pleased to announce further broad
and high-grade assay results from resource drilling completed at
the Company's flagship Ewoyaa Lithium Project ("Ewoyaa" or the
"Project") in Ghana, West Africa.
Highlights:
-
Assay results
received for 4,101m of extensional resource drilling at the Dog-Leg
target and sterilisation reverse circulation ("RC") drilling at the
proposed plant site, respectively, representing the first results
from drilling completed in 2024.
-
High-grade and
broad extensional drill intersections reported at the new Dog-Leg
target, outside of the current 35.3Mt @ 1.25% Li2O JORC
(2012) compliant Ewoyaa Mineral Resource Estimate1
("MRE" or the "Resource"), including highlights at a 0.4%
Li2O cut-off and a maximum 4m of internal dilution
of:
o GRC0177: 27m at 1.85%
Li2O from
126m
o GRC1059: 15m at 1.08%
Li2O from
126m
o GRC1058: 8m at 0.93%
Li2O from
88m
-
Results at
Dog-Leg are significant; drilling has intersected shallow dipping,
near surface mineralised pegmatite bodies with true thicknesses up
to 35m outside of the MRE1, proving potential for
significant resource growth.
-
Assay
results reported include a total of 3,177m of plant site
sterilisation drilling completed, as part of the planned 2024
programme, with no mineralisation intersected, providing confidence
in the proposed plant site location.
-
MRE
upgrade, for both lithium and feldspar, to incorporate all drilling
completed in 2023 and so far in 2024, now targeted for mid-year.
Commenting on the Company's latest progress, Neil Herbert,
Executive Chairman of Atlantic Lithium,
said:
"Initial assay results from the drilling completed so far in
2024 have again delivered impressive intersections, providing
confidence in the growth potential of the current 35.3Mt @ 1.25%
Li2O Resource at the Ewoyaa Lithium
Project.
"These results are from the new Dog-Leg target, located on the
northern tip of the Ewoyaa Main deposit, outside of the current
MRE, where drilling has returned multiple high-grade and broad near
surface extensional intersections, including 27m at 1.85%
Li2O from 126m in these most recent
results.
"We
look forward to receiving further drilling results from the diamond
tail drilling completed at Dog-Leg and delivering a MRE upgrade for
the Project, now targeted for mid-year. The MRE upgrade will
include updates to both the lithium and feldspar and incorporate
all results received from drilling completed in 2023 and results
from drilling completed so far during 2024.
"Furthermore, assay results have confirmed no mineralisation
has been intersected at the plant site sterilisation drilling
programme, allowing us to continue with our mine site designs and
permitting.
"We
look forward to updating shareholders on our ongoing
progress."
New Drilling Results
Assay results have been received for 4,101m of
resource extension and sterilisation RC drilling completed so far
in 2024 at the Ewoyaa Lithium Project. The results include 924m of
resource extension drilling at the Dog-Leg target and 3,177m of
sterilisation drilling at the proposed plant site. High-grade
extensional drilling results have been reported at the new Dog-Leg
target. The reported results sit outside of the current
MRE1 (refer
Table 1, Figure 1, Figure 2, Appendix 1 and Appendix 2).
Drilling is designed to intersect pegmatite bodies
perpendicular to strike and dip to approximate true width as best
possible. This is not always achieved due to the variable nature of
pegmatites or challenging drill access, with some drill
intersections drilled down-dip as apparent widths. Accordingly,
estimated true widths are included in the intersections table in
Appendix 1.
Table 1: Drill
intersection highlights at greater than 5 Li x m, reported at a
0.4% Li2O cut-off and maximum of 4m of
internal dilution
|
Hole_ID
|
From_m
|
To_m
|
Interval_m
|
Hole
depth_m
|
Li2O%
|
Intersection
|
metal content Li x
m
|
Hole
Purpose
|
Deposit
|
|
GRC0177
|
126
|
153
|
27
|
180
|
1.85
|
GRC0177:
27m at 1.85% Li2O from 126m
|
49.85
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1059
|
126
|
141
|
15
|
180
|
1.07
|
GRC1059:
15m at 1.08% Li2O from 126m
|
16.06
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1057
|
38
|
48
|
10
|
120
|
0.75
|
GRC1057:
10m at 0.76% Li2O from 38m
|
7.51
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1058
|
88
|
96
|
8
|
107
|
0.93
|
GRC1058: 8m
at 0.93% Li2O from 88m
|
7.4
|
Resource
Drilling
|
Dog-Leg
|
Note:
Metal content is
based on intercept rather than estimated true
width
New drilling at the Dog-Leg target (refer announcement of 28 November 2023) has delivered
further mineralised drill intersections, predominantly outside of
the current MRE1. Highlights include hole GRC0177: 27m
at 1.85% Li2O from 126m and hole GRC1059: 15m at 1.08%
Li2O from 126m (refer Figure 1 and Figure 2).
The results are significant in that an apparent
shallow dipping mineralised pegmatite body has been intersected in
multiple drill holes with true widths of 20m to 35m which has the
potential to add significant near surface resource tonnes.
Figure 1: Location of reported assay results with
highlight drill intersections on greyscale topography
background
Figure 2: Cross-section A-A' looking west showing assay
results received for hole GRC0177 at the Dog-Leg
target
Figure 3: Cross-section B-B' looking northwards showing
assay results received for hole GRC1059 at the Dog-Leg
target
The Company completed 3,177m of sterilisation drilling
in 21 holes at the proposed plant site. No mineralisation was
reported in drilling, providing confidence in the proposed plant
site location. The drill rig has now been demobilised, with
drilling planned to recommence in H2 2024.
Regional exploration programmes continuing
concurrently in order to advance the Company's exploration project
pipeline. The Company will incorporate the results of drilling
completed in 2023 and drilling completed so far in 2024 into a MRE
upgrade for the Project, targeted for mid-year.
Sample preparation was completed by Intertek Ghana and
assay by Intertek Perth, with all reported results passing QA/QC
protocols, providing confidence in reported results.
End note
1 Ore Reserves, Mineral
Resources and Production Targets
The information in this announcement
that relates to Ore Reserves, Mineral Resources and Production
Targets complies with the 2012 Edition of the Australasian Code for
Reporting of Exploration Results, Mineral Resources and Ore
Reserves (JORC Code). The information in this announcement relating
to the Mineral Resource Estimate ("MRE") of 35.3Mt @ 1.25%
Li2O for Ewoyaa is extracted from the Company's
announcement dated 1 February 2023, which is available at
atlanticlithium.com.au.
The MRE includes a total of 3.5Mt @ 1.37% Li2O in the
Measured category, 24.5Mt @ 1.25% Li2O in the Indicated
category and 7.4Mt @ 1.16% Li2O in the Inferred
category. The Company confirms that all material assumptions and
technical parameters underpinning the Mineral Resource Estimate
continue to apply. Material assumptions for the Project have been
revised on grant of the Mining Lease for the Project, announced by
the Company on 20 October 2023. The Company it is not aware of any
new information or data that materially affects the information
included in this announcement or the announcements dated 1 February
2023 and 20 October 2023.
Competent Persons
Information in this report relating
to the exploration results is based on data reviewed by Mr Lennard
Kolff (MEcon. Geol., BSc. Hons ARSM), Chief Geologist of the
Company. Mr Kolff is a Member of the Australian Institute of
Geoscientists who has in excess of 20 years' experience in mineral
exploration and is a Qualified Person under the AIM Rules. Mr Kolff
consents to the inclusion of the information in the form and
context in which it appears.
Information in this report relating
to Mineral Resources was compiled by Shaun Searle, a Member of the
Australian Institute of Geoscientists. Mr Searle has
sufficient experience that is relevant to the style of
mineralisation and type of deposit under consideration and to the
activity being undertaken to qualify as a Competent Person as
defined in the 2012 Edition of the 'Australasian Code for Reporting
of Exploration Results, Mineral Resources and Ore Reserves' and is
a Qualified Person under the AIM Rules. Mr Searle is a director of
Ashmore. Ashmore and the Competent Person are independent of the
Company and other than being paid fees for services in compiling
this report, neither has any financial interest (direct or
contingent) in the Company. Mr Searle consents to the inclusion in
the report of the matters based upon the information in the form
and context in which it appears.
This announcement contains inside
information for the purposes of Article 7 of the Market Abuse
Regulation (EU) 596/2014 as it forms part of UK domestic law by
virtue of the European Union (Withdrawal) Act 2018 ("MAR"), and is
disclosed in accordance with the Company's obligations under
Article 17 of MAR.
For any further information, please
contact:
Atlantic Lithium Limited
Neil Herbert (Executive Chairman)
Amanda Harsas (Finance Director and Company
Secretary)
|
|
www.atlanticlithium.com.au
|
|
|
IR@atlanticlithium.com.au
|
|
|
Tel: +61 2 8072
0640
|
|
SP
Angel Corporate Finance LLP
Nominated Adviser
Jeff Keating
Charlie Bouverat
Tel: +44 (0)20 3470 0470
|
Yellow Jersey PR Limited
Charles
Goodwin
Bessie
Elliot
atlantic@yellowjerseypr.com
Tel: +44 (0)20 3004
9512
|
Canaccord Genuity Limited
Financial Adviser:
Raj Khatri (UK) /
Duncan St John, Christian
Calabrese (Australia)
Corporate Broking:
James
Asensio
Tel: +44 (0) 20 7523
4500
|
|
Notes to Editors:
About Atlantic
Lithium
www.atlanticlithium.com.au
Atlantic Lithium is an AIM and ASX-listed lithium
company advancing its flagship project, the Ewoyaa Lithium Project,
a significant lithium spodumene pegmatite discovery in Ghana,
through to production to become the country's first
lithium-producing mine.
The Definitive Feasibility Study for the Project
indicates the production of 3.6Mt of spodumene concentrate over a
12-year mine life, making it one of the largest spodumene
concentrate mines in the world.
The Project, which was awarded a Mining Lease in
October 2023, is being developed under an earn-in agreement with
Piedmont Lithium Inc.
Atlantic Lithium holds a portfolio of lithium projects
within 509km2 and 774km2 of granted and
under-application tenure across Ghana and Côte d'Ivoire
respectively, which, in addition to the Project, comprises
significantly under-explored, highly prospective licences.
Appendix 1 New drill intersections
reported in hole ID order, reported at a 0.4% Li2O cut-off and maximum 4m
of internal dilution
|
Hole_ID
|
From_m
|
To_m
|
Interval_m
|
Est. true
thick_m
|
Hole
depth_m
|
Li2O%
|
Intersection
|
Comment
|
metal content Li x
m
|
Hole
Purpose
|
Deposit
|
|
GRC0177
|
126
|
153
|
27
|
26
|
180
|
1.85
|
GRC0177:
27m at 1.85% Li2O from 126m
|
|
49.85
|
Resource
Drilling
|
Dog-Leg
|
|
GRC0177
|
153
|
155
|
2
|
n/a
|
180
|
|
no
significant intersections
|
|
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1036
|
|
|
150
|
n/a
|
150
|
|
no
significant intersections
|
No
pegmatite intersected
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1037
|
|
|
150
|
n/a
|
150
|
|
no
significant intersections
|
No
pegmatite intersected
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1038
|
1
|
2
|
1
|
n/a
|
150
|
|
no
significant intersections
|
weathered
pegmatite
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1038
|
11
|
12
|
1
|
n/a
|
150
|
|
no
significant intersections
|
weathered
pegmatite
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1038
|
134
|
137
|
3
|
n/a
|
150
|
|
no
significant intersections
|
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1039
|
138
|
144
|
6
|
n/a
|
150
|
|
no
significant intersections
|
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1040
|
|
|
150
|
n/a
|
150
|
|
no
significant intersections
|
No
pegmatite intersected
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1041
|
|
|
150
|
n/a
|
150
|
|
no
significant intersections
|
No
pegmatite intersected
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1042
|
119
|
120
|
1
|
n/a
|
150
|
|
no
significant intersections
|
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1042
|
123
|
125
|
2
|
n/a
|
150
|
|
no
significant intersections
|
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1042
|
134
|
136
|
2
|
n/a
|
150
|
|
no
significant intersections
|
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1042
|
137
|
140
|
3
|
n/a
|
150
|
|
no
significant intersections
|
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1043
|
133
|
142
|
9
|
n/a
|
150
|
|
no
significant intersections
|
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1044
|
|
|
150
|
n/a
|
150
|
|
no
significant intersections
|
No
pegmatite intersected
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1045
|
142
|
143
|
1
|
n/a
|
150
|
|
no
significant intersections
|
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1046
|
76
|
77
|
1
|
n/a
|
150
|
|
no
significant intersections
|
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1046
|
92
|
100
|
8
|
n/a
|
150
|
|
no
significant intersections
|
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1047
|
108
|
109
|
1
|
n/a
|
150
|
|
no
significant intersections
|
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1047
|
119
|
121
|
2
|
n/a
|
150
|
|
no
significant intersections
|
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1047
|
123
|
124
|
1
|
n/a
|
150
|
|
no
significant intersections
|
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1048
|
91
|
92
|
1
|
n/a
|
150
|
|
no
significant intersections
|
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1048
|
131
|
132
|
1
|
n/a
|
150
|
|
no
significant intersections
|
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1049
|
131
|
136
|
5
|
n/a
|
160
|
|
no
significant intersections
|
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1049
|
137
|
140
|
3
|
n/a
|
160
|
|
no
significant intersections
|
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1049
|
146
|
151
|
5
|
n/a
|
160
|
|
no
significant intersections
|
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1049
|
152
|
156
|
4
|
n/a
|
160
|
|
no
significant intersections
|
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1050
|
116
|
123
|
7
|
n/a
|
150
|
|
no
significant intersections
|
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1050
|
124
|
126
|
2
|
n/a
|
150
|
|
no
significant intersections
|
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1051
|
148
|
150
|
2
|
n/a
|
167
|
|
no
significant intersections
|
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1051
|
153
|
155
|
2
|
n/a
|
167
|
|
no
significant intersections
|
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1051
|
157
|
159
|
2
|
n/a
|
167
|
|
no
significant intersections
|
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1051
|
162
|
163
|
1
|
n/a
|
167
|
|
no
significant intersections
|
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1052
|
61
|
62
|
1
|
n/a
|
150
|
|
no
significant intersections
|
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1053
|
|
|
150
|
n/a
|
150
|
|
no
significant intersections
|
No
pegmatite intersected
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1054
|
139
|
140
|
1
|
n/a
|
150
|
|
no
significant intersections
|
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1055
|
|
|
150
|
n/a
|
150
|
|
no
significant intersections
|
No
pegmatite intersected
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1056
|
21
|
22
|
1
|
n/a
|
150
|
|
no
significant intersections
|
weathered
pegmatite
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1056
|
24
|
28
|
4
|
n/a
|
150
|
|
no
significant intersections
|
weathered
pegmatite
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1056
|
51
|
53
|
2
|
n/a
|
150
|
|
no
significant intersections
|
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1056
|
66
|
70
|
4
|
n/a
|
150
|
|
no
significant intersections
|
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1056
|
71
|
75
|
4
|
n/a
|
150
|
|
no
significant intersections
|
|
|
Sterilisation Drilling
|
plant
site
|
|
GRC1057
|
3
|
38
|
35
|
n/a
|
120
|
|
no
significant intersections
|
weathered
pegmatite
|
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1057
|
38
|
48
|
10
|
8
|
120
|
0.75
|
GRC1057:
10m at 0.76% Li2O from 38m
|
|
7.51
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1057
|
48
|
49
|
1
|
n/a
|
120
|
|
no
significant intersections
|
|
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1058
|
49
|
50
|
1
|
n/a
|
107
|
|
no
significant intersections
|
|
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1058
|
53
|
56
|
3
|
n/a
|
107
|
|
no
significant intersections
|
|
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1058
|
59
|
62
|
3
|
n/a
|
107
|
|
no
significant intersections
|
|
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1058
|
62
|
67
|
5
|
4
|
107
|
0.30
|
GRC1058: 5m
at 0.31% Li2O from 62m
|
|
1.51
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1058
|
68
|
69
|
1
|
n/a
|
107
|
|
no
significant intersections
|
|
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1058
|
73
|
77
|
4
|
n/a
|
107
|
|
no
significant intersections
|
|
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1058
|
80
|
81
|
1
|
n/a
|
107
|
|
no
significant intersections
|
|
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1058
|
81
|
83
|
2
|
n/a
|
107
|
1.43
|
GRC1058: 2m
at 1.43% Li2O from 81m
|
|
2.85
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1058
|
83
|
84
|
1
|
n/a
|
107
|
|
no
significant intersections
|
|
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1058
|
86
|
88
|
2
|
n/a
|
107
|
|
no
significant intersections
|
|
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1058
|
88
|
96
|
8
|
5
|
107
|
0.93
|
GRC1058: 8m
at 0.93% Li2O from 88m
|
|
7.4
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1058
|
96
|
97
|
1
|
n/a
|
107
|
|
no
significant intersections
|
|
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1059
|
5
|
12
|
7
|
n/a
|
180
|
|
no
significant intersections
|
weathered
pegmatite
|
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1059
|
14
|
17
|
3
|
n/a
|
180
|
|
no
significant intersections
|
weathered
pegmatite
|
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1059
|
20
|
22
|
2
|
n/a
|
180
|
|
no
significant intersections
|
weathered
pegmatite
|
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1059
|
78
|
82
|
4
|
n/a
|
180
|
|
no
significant intersections
|
|
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1059
|
121
|
126
|
5
|
n/a
|
180
|
|
no
significant intersections
|
|
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1059
|
126
|
141
|
15
|
14
|
180
|
1.07
|
GRC1059:
15m at 1.08% Li2O from 126m
|
|
16.06
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1059
|
141
|
142
|
1
|
n/a
|
180
|
|
no
significant intersections
|
|
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1059
|
144
|
146
|
2
|
n/a
|
180
|
|
no
significant intersections
|
|
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1060
|
3
|
5
|
2
|
n/a
|
180
|
|
no
significant intersections
|
weathered
pegmatite
|
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1060
|
9
|
11
|
2
|
n/a
|
180
|
|
no
significant intersections
|
weathered
pegmatite
|
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1060
|
65
|
72
|
7
|
n/a
|
180
|
|
no
significant intersections
|
|
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1060
|
119
|
121
|
2
|
n/a
|
180
|
|
no
significant intersections
|
|
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1060
|
144
|
146
|
2
|
n/a
|
180
|
|
no
significant intersections
|
|
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1061
|
34
|
36
|
2
|
n/a
|
157
|
|
no
significant intersections
|
weathered
pegmatite
|
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1061
|
80
|
82
|
2
|
n/a
|
157
|
|
no
significant intersections
|
|
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1061
|
86
|
87
|
1
|
n/a
|
157
|
|
no
significant intersections
|
|
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1061
|
142
|
147
|
5
|
n/a
|
157
|
|
no
significant intersections
|
|
|
Resource
Drilling
|
Dog-Leg
|
Note
1: Metal content is based on intercept
rather than estimated true width
Note 2: Estimated true width only included
for mineralised intersections greater than
4m
Appendix 2 Newly reported drill hole
collar locations
|
Hole_ID
|
Hole
depth_m
|
Easting
|
Northing
|
Elevation
|
Dip
|
Hole
Azimuth
|
Hole
Purpose
|
Deposit
|
|
GRC0177
|
180
|
715783
|
579892
|
68.74
|
-50
|
210
|
Resource
Drilling; hole re-entry
|
Dog-Leg
|
|
GRC1036
|
150
|
713938
|
577796
|
20.52
|
-50
|
260
|
Sterilisation Drilling
|
Plant
site
|
|
GRC1037
|
150
|
714035
|
577810
|
24.05
|
-50
|
260
|
Sterilisation Drilling
|
Plant
site
|
|
GRC1038
|
150
|
714135
|
577836
|
23.69
|
-50
|
260
|
Sterilisation Drilling
|
Plant
site
|
|
GRC1039
|
150
|
713848
|
577878
|
22.36
|
-50
|
260
|
Sterilisation Drilling
|
Plant
site
|
|
GRC1040
|
150
|
713950
|
577898
|
24.67
|
-50
|
260
|
Sterilisation Drilling
|
Plant
site
|
|
GRC1041
|
150
|
714045
|
577913
|
30.41
|
-50
|
260
|
Sterilisation Drilling
|
Plant
site
|
|
GRC1042
|
150
|
713816
|
577973
|
23.40
|
-50
|
260
|
Sterilisation Drilling
|
Plant
site
|
|
GRC1043
|
150
|
713919
|
577993
|
23.27
|
-50
|
260
|
Sterilisation Drilling
|
Plant
site
|
|
GRC1044
|
150
|
714015
|
578011
|
26.90
|
-50
|
260
|
Sterilisation Drilling
|
Plant
site
|
|
GRC1045
|
150
|
714150
|
578034
|
48.34
|
-50
|
80
|
Sterilisation Drilling
|
Plant
site
|
|
GRC1046
|
150
|
713709
|
578057
|
26.62
|
-50
|
260
|
Sterilisation Drilling
|
Plant
site
|
|
GRC1047
|
150
|
713807
|
578076
|
24.09
|
-50
|
260
|
Sterilisation Drilling
|
Plant
site
|
|
GRC1048
|
150
|
713903
|
578088
|
25.70
|
-50
|
260
|
Sterilisation Drilling
|
Plant
site
|
|
GRC1049
|
160
|
714006
|
578107
|
25.23
|
-50
|
260
|
Sterilisation Drilling
|
Plant
site
|
|
GRC1050
|
150
|
713831
|
578180
|
25.89
|
-50
|
260
|
Sterilisation Drilling
|
Plant
site
|
|
GRC1051
|
167
|
714012
|
578211
|
27.25
|
-50
|
260
|
Sterilisation Drilling
|
Plant
site
|
|
GRC1052
|
150
|
714105
|
578231
|
27.68
|
-50
|
260
|
Sterilisation Drilling
|
Plant
site
|
|
GRC1053
|
150
|
714200
|
578139
|
54.19
|
-50
|
260
|
Sterilisation Drilling
|
Plant
site
|
|
GRC1054
|
150
|
714210
|
578145
|
55.21
|
-50
|
80
|
Sterilisation Drilling
|
Plant
site
|
|
GRC1055
|
150
|
714104
|
578128
|
34.33
|
-50
|
260
|
Sterilisation Drilling
|
Plant
site
|
|
GRC1056
|
150
|
714240
|
577741
|
31.69
|
-50
|
260
|
Sterilisation Drilling
|
Plant
site
|
|
GRC1057
|
120
|
715826
|
579744
|
38.07
|
-90
|
0
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1058
|
107
|
715905
|
579787
|
26.25
|
-60
|
305
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1059
|
180
|
715641
|
579868
|
32.92
|
-50
|
125
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1060
|
180
|
715624
|
579942
|
38.93
|
-50
|
125
|
Resource
Drilling
|
Dog-Leg
|
|
GRC1061
|
157
|
715681
|
579889
|
35.27
|
-70
|
125
|
Resource
Drilling
|
Dog-Leg
|
Note:
Grid references
reported in projection UTM, WGS84, Zone 30N
The following extract from the JORC Code 2012 Table 1
is provided for compliance with the Code requirements for the
reporting of Exploration Results.
JORC Code Table 1: Section 1 Sampling Techniques and
Data
(Criteria in this section apply to all succeeding
sections).
|
Criteria
|
JORC Code
Explanation
|
Commentary
|
|
Sampling
techniques
|
· Nature
and quality of sampling (e.g. cut channels, random chips, or
specific specialised industry standard measurement tools
appropriate to the minerals under investigation, such as down hole
gamma sondes, or handheld XRF instruments, etc.). These examples
should not be taken as limiting the broad meaning of sampling.
·
Include reference to measures
taken to ensure sample representivity and the appropriate
calibration of any measurement tools or systems used.
· Aspects
of the determination of mineralisation that are Material to the
Public Report.
· In
cases where 'industry standard' work has been done this would be
relatively simple (e.g. 'reverse circulation drilling was used to
obtain 1m samples from which 3kg was pulverised to produce a 30g
charge for fire assay'). In other cases more explanation may be
required, such as where there is coarse gold that has inherent
sampling problems. Unusual commodities or mineralisation types
(e.g. submarine nodules) may warrant disclosure of detailed
information.
|
· RC
drill holes were routinely sampled at 1m intervals with a nominal
3-6kg sub-sample split off for assay using a rig-mounted cone
splitter at 1m intervals.
· DD
holes were quarter core sampled at 1m intervals or to geological
contacts for geochemical analysis.
· For
assaying, splits from all prospective ore zones (i.e. logged
pegmatites +/- interburden) were sent for assay. Outside of
these zones, the splits were composited to 4m using a portable
riffle splitter.
· Holes
without pegmatite were not assayed.
·
Approximately 5% of all samples submitted were standards and coarse
blanks. Blanks were typically inserted with the interpreted ore
zones after the drilling was completed.
·
Approximately 2.5% of samples submitted were duplicate samples
collected after logging using a riffle splitter and sent to an
umpire laboratory. This ensured zones of interest were duplicated
and not missed during alternative routine splitting of the primary
sample.
· Prior
to the December 2018 - SGS Tarkwa was used for sample preparation
(PRP100) and subsequently forwarded to SGS Johannesburg for
analysis; and later SGS Vancouver for analysis (ICP90A).
· Post
December 2018 to present - Intertek Tarkwa was used for sample
preparation (SP02/SP12) and subsequently forwarded to Intertek
Perth for analysis (FP6/MS/OES - 21 element combination
Na2O2 fusion with combination OES/MS).
· ALS
Laboratory in Brisbane was used for the Company's initial due
diligence work programmes and was selected as the umpire laboratory
since Phase 1. ALS conducts ME-ICP89, with a Sodium Peroxide
Fusion. Detection limits for lithium are 0.01-10%. Sodium
Peroxide fusion is considered a "total" assay technique for
lithium. In addition, 22 additional elements assayed with
Na2O2 fusion, and combination MS/ICP
analysis.
|
|
Criteria
|
JORC Code
Explanation
|
Commentary
|
|
Drilling
techniques
|
· Drill
type (e.g. core, reverse circulation, open-hole hammer, rotary air
blast, auger, Bangka, sonic, etc.) and details (e.g. core diameter,
triple or standard tube, depth of diamond tails, face-sampling bit
or other type, whether core is oriented and if so, by what method,
etc.).
|
· Six
phases of drilling were undertaken at the Project using RC and DD
techniques. All the RC drilling used face sampling
hammers.
· Phase 1
and 2 programmes used a 5.25 inch hammers while Phase 3 used a
5.75-inch hammer.
· All DD
holes were completed using PQ and HQ core from surface (85mm and
63.5mm).
· All DD
holes were drilled in conjunction with a Reflex ACT II tool; to
provide an accurate determination of the bottom-of-hole
orientation.
· All
fresh core was orientated to allow for geological, structural and
geotechnical logging by a Company geologist.
|
|
Drill sample
recovery
|
· Method
of recording and assessing core and chip sample recoveries and
results assessed.
·
Measures taken to maximise sample recovery and ensure
representative nature of the samples.
· Whether
a relationship exists between sample recovery and grade and whether
sample bias may have occurred due to preferential loss/gain of
fine/coarse material.
|
· A
semi-quantitative estimate of sample recovery was completed for the
vast majority of drilling. This involved weighing both the
bulk samples and splits and calculating theoretical recoveries
using assumed densities. Where samples were not weighed,
qualitative descriptions of the sample size were recorded.
Some sample loss was recorded in the collaring of the RC
drill holes.
· DD
recoveries were measured and recorded. Recoveries in excess
of 95.8% have been achieved for the DD drilling programme. Drill
sample recovery and quality is adequate for the drilling technique
employed.
· The DD
twin programme has identified a positive grade bias for iron in the
RC compared to the DD results.
|
|
Logging
|
· Whether
core and chip samples have been geologically and geotechnically
logged to a level of detail to support appropriate Mineral Resource
estimation, mining studies and metallurgical studies.
· Whether
logging is qualitative or quantitative in nature. Core (or costean,
channel, etc.) photography.
· The
total length and percentage of the relevant intersections
logged.
|
· All
drill sample intervals were geologically logged by Company
geologists.
· Where
appropriate, geological logging recorded the abundance of specific
minerals, rock types and weathering using a standardised logging
system that captured preliminary metallurgical domains.
· All
logging is qualitative, except for the systematic collection of
magnetic susceptibility data which could be considered semi
quantitative.
· Strip
logs have been generated for each drill hole to cross-check
geochemical data with geological logging.
· A small
sample of washed RC drill material was retained in chip trays for
future reference and validation of geological logging, and sample
reject materials from the laboratory are stored at the Company's
field office.
· All
drill holes have been logged and reviewed by Company technical
staff.
· The
logging is of sufficient detail to support the current reporting of
a Mineral Resource.
|
|
Criteria
|
JORC Code
Explanation
|
Commentary
|
|
Sub-sampling techniques and
sample preparation
|
· If
core, whether cut or sawn and whether quarter, half or all core
taken.
· If
non-core, whether riffled, tube sampled, rotary split, etc. and
whether sampled wet or dry.
· For all
sample types, the nature, quality and appropriateness of the sample
preparation technique.
· Quality
control procedures adopted for all sub-sampling stages to maximise
representivity of samples.
·
Measures taken to ensure that the sampling is representative of the
in situ material collected, including for instance results for
field duplicate/second-half sampling.
· Whether
sample sizes are appropriate to the grain size of the material
being sampled.
|
· RC
samples were cone split at the drill rig. For interpreted
waste zones the 1 or 2m rig splits were later composited using a
riffle splitter into 4m composite samples.
· DD core
was cut with a core saw and selected half core samples dispatched
to Nagrom Laboratory in Perth for preliminary metallurgical test
work.
· The
other half of the core, including the bottom-of-hole orientation
line, was retained for geological reference.
· The
remaining DD core was quarter cored for geochemical analysis.
· Since
December 2018, samples were submitted to Intertek Tarkwa
(SP02/SP12) for sample preparation. Samples were weighed, dried and
crushed to -2mm in a Boyd crusher with an 800-1,200g rotary split,
producing a nominal 1,500g split crushed sample; which was
subsequently pulverised in a LM2 ring mill. Samples were
pulverised to a nominal 85% passing 75µm. All the preparation
equipment was flushed with barren material prior to the
commencement of the job. Coarse reject material was kept in
the original bag. Lab sizing analysis was undertaken on a
nominal 1:25 basis. Final pulverised samples (20g) were
airfreighted to Intertek in Perth for assaying.
· The
vast majority of samples were drilled dry. Moisture content was
logged qualitatively. All intersections of the water table
were recorded in the database.
· Field
sample duplicates were taken to evaluate whether samples were
representative and understand repeatability, with good
repeatability.
· Sample
sizes and laboratory preparation techniques were appropriate and
industry standard.
|
|
Quality of assay data and
laboratory tests
|
· The
nature, quality and appropriateness of the assaying and laboratory
procedures used and whether the technique is considered partial or
total.
· For
geophysical tools, spectrometers, handheld XRF instruments, etc.,
the parameters used in determining the analysis including
instrument make and model, reading times, calibrations factors
applied and their derivation, etc.
· Nature
of quality control procedures adopted (e.g. standards, blanks,
duplicates, external laboratory checks) and whether acceptable
levels of accuracy (i.e. lack of bias) and precision have been
established.
|
·
Analysis for lithium and a suite of other elements for Phase 1
drilling was undertaken at SGS Johannesburg / Vancouver by ICP-OES
after Sodium Peroxide Fusion. Detection limits for lithium (10ppm -
100,000ppm). Sodium Peroxide fusion is considered a "total" assay
technique for lithium.
· Review
of standards and blanks from the initial submission to Johannesburg
identified failures (multiple standards reporting outside control
limits). A decision was made to resubmit this batch and all
subsequent batches to SGS Vancouver - a laboratory considered to
have more experience with this method of analysis and sample
type.
· Results
of analyses for field sample duplicates are consistent with the
style of mineralisation and considered to be representative.
Internal laboratory QAQC checks are reported by the laboratory,
including sizing analysis to monitor preparation and internal
laboratory QA/QC. These were reviewed and retained in the company
drill hole database.
· 155
samples were sent to an umpire laboratory (ALS) and/assayed using
equivalent techniques, with results demonstrating good
repeatability.
·
Atlantic Lithium's review of QAQC suggests the SGS Vancouver and
Intertek Perth laboratories performed within acceptable limits.
· No
geophysical methods or hand-held XRF units have been used for
determination of grades in the Mineral Resource.
|
|
Criteria
|
JORC Code
Explanation
|
Commentary
|
|
Verification of sampling and
assaying
|
· The
verification of significant intersections by either independent or
alternative company personnel.
· The use
of twinned holes.
·
Documentation of primary data, data entry procedures, data
verification, data storage (physical and electronic) protocols.
· Discuss
any adjustment to assay data.
|
·
Significant intersections were visually field verified by company
geologists and Shaun Searle of Ashmore during the 2019 site
visit.
· Drill
hole data was compiled and digitally captured by Company geologists
in the field. Where hand-written information was recorded, all
hardcopy records were kept and archived after digitising.
· Phase 1
and 2 drilling programmes were captured on paper or locked excel
templates and migrated to an MS Access database and then into
Datashed (industry standard drill hole database management
software). The Phase 3 to 6 programmes were captured using
LogChief which has inbuilt data validation protocols. All
analytical results were transferred digitally and loaded into the
database by a Datashed consultant.
· The
data was audited, and any discrepancies checked by the Company
personnel before being updated in the database.
· Twin DD
holes were drilled to verify results of the RC drilling programmes.
Results indicate that there is iron contamination in the RC
drilling process.
·
Reported drill hole intercepts were compiled by the Chief
Geologist.
·
Adjustments to the original assay data included converting Li ppm
to Li2O%.
|
|
Location of data
points
|
·
Accuracy and quality of surveys used to locate drill holes (collar
and down-hole surveys), trenches, mine workings and other locations
used in Mineral Resource estimation.
·
Specification of the grid system used.
· Quality
and adequacy of topographic control.
|
· The
collar locations were surveyed in WGS84 Zone 30 North using DGPS
survey equipment, which is accurate to 0.11mm in both horizontal
and vertical directions. All holes were surveyed by qualified
surveyors. Once validated, the survey data was uploaded into
Datashed.
· RC
drill holes were routinely down hole surveyed every 6m using a
combination of EZ TRAC 1.5 (single shot) and Reflex Gyroscopic
tools.
· After
the tenth drill hole, the survey method was changed to Reflex Gyro
survey with 6m down hole data points measured during an end-of-hole
survey.
· All
Phase 2 and 3 drill holes were surveyed initially using the Reflex
Gyro tool, but later using the more efficient Reflex SPRINT tool.
Phase 4 and 5 drill holes were surveyed using a Reflex SPRINT
tool.
· LiDAR
survey Southern Mapping to produce rectified colour images and a
digital terrain model (DTM) 32km2, Aircraft C206
aircraft-mounted LiDAR Riegl Q780 Camera Hasselblad H5Dc with 50mm
Fixfocus lens.
·
Coordinate system: WGS84 UTM30N with accuracy to ±0.04.
· The
topographic survey and photo mosaic output from the survey is
accurate to 20mm.
·
Locational accuracy at collar and down the drill hole is considered
appropriate for resource estimation purposes.
|
|
Data spacing and
distribution
|
· Data
spacing for reporting of Exploration Results.
· Whether
the data spacing and distribution is sufficient to establish the
degree of geological and grade continuity appropriate for the
Mineral Resource and Ore Reserve estimation procedure(s) and
classifications applied.
· Whether
sample compositing has been applied.
|
· The RC
holes were initially drilled on 100m spaced sections and 50m hole
spacings orientated at 300° or 330° with dips ranging from -50° to
-60°. Planned hole orientations/dips were occasionally adjusted due
to pad and/or access constraints.
· Hole
spacing was reduced to predominantly 40m spaced sections and 40m
hole spacings, with infill to 20m by 15m in the upper portions of
the Ewoyaa Main deposit. Holes are generally angled perpendicular
to interpreted mineralisation orientations at the Project.
· Samples
were composited to 1m intervals prior to estimation.
|
|
|
|
|
|
Criteria
|
JORC Code
Explanation
|
Commentary
|
|
Orientation of data in
relation to geological structure
|
· Whether
the orientation of sampling achieves unbiased sampling of possible
structures and the extent to which this is known, considering the
deposit type.
· If the
relationship between the drilling orientation and the orientation
of key mineralised structures is considered to have introduced a
sampling bias, this should be assessed and reported if
material.
|
· The
drill line and drill hole orientation are oriented as close as
practicable to perpendicular to the orientation of the general
mineralised orientation.
· Most of
the drilling intersects the mineralisation at close to 90 degrees
ensuring intersections are representative of true widths. It is
possible that new geological interpretations and/or infill drilling
requirements may result in changes to drill orientations on future
programmes.
· No
orientation based sampling bias has been identified in the
data.
|
|
Sample
security
|
· The
measures taken to ensure sample security.
|
· Samples
were stored on site prior to road transportation by Company
personnel to the SGS preparation laboratory.
· With
the change of laboratory to Intertek, samples were picked up by the
contractor and transported to the sample preparation facility in
Tarkwa.
|
|
Audits or
reviews
|
· The
results of any audits or reviews of sampling techniques and
data.
|
· Prior
to the drilling programme, a third-party Project review was
completed by an independent consultant experienced with the style
of mineralisation.
· In
addition, Shaun Searle of Ashmore reviewed drilling and sampling
procedures during the 2019 site visit and found that all procedures
and practices conform to industry standards.
|
'JORC Code 2012 Table 1' Section 2 Reporting of Exploration
Results
(Criteria listed in the preceding section also apply
to this section).
|
Criteria
|
JORC Code
Explanation
|
Commentary
|
|
Mineral tenement and land
tenure status
|
· Type,
reference name/number, location and ownership including agreements
or material issues with third parties such as joint ventures,
partnerships, overriding royalties, native title interests,
historical sites, wilderness or national park and environmental
settings.
· The
security of the tenure held at the time of reporting along with any
known impediments to obtaining a licence to operate in the
area.
|
· The
Project covers two contiguous licences the Mankessim (RL 3/55) and
Mankessim South (PL3/109) licence.
· The
Mankessim is a joint-venture, with the licence in the name of the
joint-venture party (Barari DV Ghana Limited). Document number:
0853652-18.
· The
Project occurs within a Mineral Prospecting licence and was renewed
on the 27 July 2021 for a further three-year period, valid until 27
July 2024.
· The
Mankessim South licence is a wholly-owned subsidiary of Green
Metals Resources. The Mineral Prospecting licence renewal was
submitted in Nov 2022 for a further three-year period.
· The
tenement is in good standing with no known impediments.
· Mining
Lease granted in respect of the Project for a period of 15 years,
effective 20 October 2023 until 19 October 2038, file number
APL-M-93.
|
|
Exploration done by other
parties
|
·
Acknowledgment and appraisal of exploration by other parties.
|
·
Historical trenching and mapping were completed by the Ghana
Geological survey during the 1960s. But for some poorly
referenced historical maps, none of the technical data from this
work was located. Many of the historical trenches were located,
cleaned and re-logged. No historical drilling was
completed.
|
|
Geology
|
· Deposit
type, geological setting and style of mineralisation.
|
·
Pegmatite-hosted lithium deposits are the target for exploration.
This style of mineralisation typically forms as dykes and sills
intruding or in proximity to granite source rocks.
· Surface
geology within the Project area typically consists of sequences of
staurolite and garnet-bearing pelitic schist and granite with
lesser pegmatite and mafic intrusives. Outcrops are typically
sparse and confined to ridge tops with colluvium and mottled
laterite blanketing much of the undulating terrain making
geological mapping challenging. The hills are often separated
by broad, sandy drainages.
|
|
Drillhole
Information
|
· A
summary of all information material to the understanding of the
exploration results including a tabulation of the following
information for all Material drill holes:
· easting
and northing of the drill hole collar
·
elevation or RL (Reduced Level - elevation above sea level in
metres) of the drill hole collar
· dip and
azimuth of the hole
·
downhole length and interception depth
· hole
length
· If the
exclusion of this information is justified on the basis that the
information is not Material and this exclusion does not detract
from the understanding of the report, the Competent Person should
clearly explain why this is the case.
|
· No
exploration results are being reported.
· All
information was included in the appendices (of the Mineral Resource
report). No drill hole information were excluded (from the Mineral
Resource report).
|
|
Criteria
|
JORC Code
Explanation
|
Commentary
|
|
Data aggregation
methods
|
· In
reporting Exploration Results, weighting averaging techniques,
maximum and/or minimum grade truncations (e.g. cutting of high
grades) and cut-off grades are usually Material and should be
stated.
· Where
aggregate intercepts incorporate short lengths of high grade
results and longer lengths of low grade results, the procedure used
for such aggregation should be stated and some typical examples of
such aggregations should be shown in detail.
· The
assumptions used for any reporting of metal equivalent values
should be clearly stated.
|
·
Exploration results are not being reported.
· Not
applicable as a Mineral Resource is being reported.
· No
metal equivalent values are being reported.
|
|
Relationship between
mineralisation widths and intercept lengths
|
· These
relationships are particularly important in the reporting of
Exploration Results.
· If the
geometry of the mineralisation with respect to the drill hole angle
is known, its nature should be reported.
· If it
is not known and only the downhole lengths are reported, there
should be a clear statement to this effect (e.g. 'downhole length,
true width not known').
|
· The
drill line and drill hole orientation are oriented as close to 90°
degrees to the orientation of the anticipated mineralised
orientation as practicable.
· The
majority of the drilling intersects the mineralisation between 60°
and 80° degrees.
|
|
Diagrams
|
·
Appropriate maps and sections (with scales) and tabulations of
intercepts should be included for any significant discovery being
reported. These should include, but not be limited to, a plan view
of drill hole collar locations and appropriate sectional views.
|
·
Relevant diagrams have been included within the Mineral Resource
report 'Ewoyaa Lithium Project Mineral Resource Estimate' dated 25
March 2023.
|
|
Balanced
reporting
|
· Where
comprehensive reporting of all Exploration Results is not
practicable, representative reporting of both low and high grades
and/or widths should be practiced to avoid misleading reporting of
Exploration Results.
|
· All
hole collars were surveyed WGS84 Zone 30 North grid using a
differential GPS. All RC and DD holes were down-hole surveyed with
a north-seeking gyroscopic tool.
·
Exploration results are not being reported.
|
|
Other substantive exploration
data
|
· Other
exploration data, if meaningful and material, should be reported
including (but not limited to): geological observations;
geophysical survey results; geochemical survey results; bulk
samples - size and method of treatment; metallurgical test results;
bulk density, groundwater, geotechnical and rock characteristics;
potential deleterious or contaminating substances.
|
· Results
were estimated from drill hole assay data, with geological logging
used to aid interpretation of mineralised contact positions.
·
Geological observations are included in the report.
|
|
Further
work
|
· The
nature and scale of planned further work (e.g. tests for lateral
extensions or depth extensions or large-scale step-out
drilling).
·
Diagrams clearly highlighting the areas of possible extensions,
including the main geological interpretations and future drilling
areas, provided this information is not commercially sensitive.
|
· Follow
up RC and DD drilling may be undertaken.
· Further
metallurgical test work may be required as the Project progresses
through the study stages.
· Drill
spacing is currently considered adequate for the current level of
interrogation of the Project.
|
~end~