REG - Atlantic Lithium Ltd - Resource and Exploration Drilling Results
06/09/2023 07:00
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RNS Number : 5419L Atlantic Lithium Limited 06 September 2023
6 September 2023
Resource and Exploration Drilling Results
Drilling Returns High-grade Infill & Extensional Intersections
Ewoyaa Lithium Project Ghana, West Africa
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 assay results from the resource and exploration drilling
programme underway at the Ewoyaa Lithium Project ("Ewoyaa" or the "Project")
in Ghana, West Africa.
Highlights:
- Further assay results received for 6,150m of infill and
exploration reverse circulation ("RC") and groundwater monitoring drilling
completed at Ewoyaa as part of the broader 18,500m 2023 planned drilling
programme.
- High-grade infill drill intersections reported at the Ewoyaa
South-2 deposit, designed to convert Inferred to Indicated Resources.
- Newly reported assay results extend mineralisation at the Ewoyaa
South-2 and Ewoyaa North-East deposits, outside of the current JORC (2012)
compliant 35.3 Mt @ 1.25% Li(2)O Ewoyaa Mineral Resource Estimate(1) ("MRE" or
the "Resource")
- Additional intersections are reported at the Kaampakrom Ewoyaa
Main and Ewoyaa North-West deposits, also outside of the current Resource(1).
- High-grade drill intersections at Ewoyaa South-2, Ewoyaa
North-East, Ewoyaa Main and Ewoyaa North-West deposits, reported as downhole
intercepts, with estimated true widths included in the intersections table,
including highlights at a 0.4% Li(2)O cut-off and a maximum 4m of internal
dilution of:
o GRC0961: 48m at 1.31% Li(2)O from 137m
o GRC0959: 24m at 1.86% Li(2)O from 10m
o GRC0943: 29m at 1.37% Li(2)O from 184m
o GRC0951: 29m at 1.2% Li(2)O from 69m
o GRC0952: 23m at 1.51% Li(2)O from 23m
o GRC0955: 13m at 1.19% Li(2)O from 28m
o GRC0944: 9m at 1.6% Li(2)O from 223m
o GRC0959: 9m at 1.48% Li(2)O from 44m
o GRC0960A: 8m at 1.18% Li(2)O from 75m
Commenting on the Company's latest progress, Neil Herbert, Executive Chairman
of Atlantic Lithium, said:
"We are pleased to report ongoing drilling assay results across the Ewoyaa
Lithium Project, which have returned high-grade infill and extension
intersections.
"Further results from the Ewoyaa South-2 and Ewoyaa North-East deposit have
extended mineralisation outside of the current Resource envelope, including
48m at 1.13% Li(2)O from 137m at Ewoyaa South-2, where mineralisation remains
open along strike and at depth.
"A total of 18,500m of infill, extensional and exploration RC drilling has
been planned for 2023. These programmes are intended to grow and improve the
confidence of the Ewoyaa Resource, in turn, improving the economics of the
Project.
"We look forward to updating shareholders on our ongoing progress, including
as remaining assay results become available."
New Drilling Results
Further assay results have been received for 6,150m of RC drilling from the
ongoing infill, extensional and exploration drill programme at the Ewoyaa
Lithium Project. High-grade infill results have been reported at the Ewoyaa
South-2 deposit. Further high-grade drill intersections have been reported for
extensional drilling results at the Ewoyaa South-2, Ewoyaa North-East and
Ewoyaa North-West deposits which sit outside of the current MRE(1) (refer
Table 1, Table 2, Appendix 1 and Appendix 2).
Drilling aims to intersect mineralised pegmatite dykes perpendicular to strike
and dip to approximate true width. 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.
Further infill and extensional drilling results at the Ewoyaa South-2 deposit
have confirmed mineralisation continuity and extended mineralisation at depth,
outside of the current MRE(1) (refer Figure 1, Figure 2 and Figure 3). New
high-grade intersections occur close to surface and are reported as downhole
intercepts, with estimated true widths included in the intersections table,
including highlights at a 0.4% Li(2)O cut-off and a maximum 4m of internal
dilution shown in Table 1.
Table 1: Drill intersection highlights at greater than 5 Li x m,
reported at a 0.4% Li(2)O cut-off and maximum of 4m of internal dilution
Hole_ID From_m To_m Interval Li(2)O% Intersection Comment Hole Purpose metal content Li x m Hole depth_m Deposit
GRC0961 137 185 48 1.31 GRC0961: 48m at 1.31% Li(2)O from 137m Resource Drilling 62.75 200 STH2
GRC0959 10 34 24 1.86 GRC0959: 24m at 1.86% Li(2)O from 10m Resource Drilling 44.53 80 STH2
GRC0951 69 98 29 1.19 GRC0951: 29m at 1.2% Li(2)O from 69m Resource Drilling 34.61 130 STH2
GRC0952 23 46 23 1.50 GRC0952: 23m at 1.51% Li(2)O from 23m Resource Drilling 34.56 80 STH2
GRC0955 28 41 13 1.18 GRC0955: 13m at 1.19% Li(2)O from 28m Resource Drilling 15.39 70 STH2
GRC0959 44 53 9 1.47 GRC0959: 9m at 1.48% Li(2)O from 44m Resource Drilling 13.24 80 STH2
GRC0960A 75 83 8 1.17 GRC0960A: 8m at 1.18% Li(2)O from 75m Resource Drilling 9.37 120 STH2
GRC0956 65 74 9 0.87 GRC0956: 9m at 0.88% Li(2)O from 65m Resource Drilling 7.85 120 STH2
GRC0956 41 46 5 1.06 GRC0956: 5m at 1.07% Li(2)O from 41m Resource Drilling 5.31 120 STH2
Note: Metal content is based on intercept rather than estimated true width
Further high-grade extensional drill intersections are reported at the Ewoyaa
North-East, Ewoyaa Main and Ewoyaa North-West deposits where mineralisation
has been encountered outside of the current MRE (refer Figure 1 and Figure 2).
New drill intersections are reported as downhole intercepts, with estimated
true widths included in the intersections table, including highlights at a
0.4% Li(2)O cut-off and a maximum 4m of internal dilution shown in Table 2.
Table 2: Drill intersection highlights at greater than 4 Li x m,
reported at a 0.4% Li(2)O cut-off and maximum of 4m of internal dilution
Hole_ID From_m To_m Interval Li(2)O% Intersection Comment Hole Purpose metal content Li x m Hole depth_m Deposit
GRC0943 184 213 29 1.37 GRC0943: 29m at 1.37% Li(2)O from 184m Resource Drilling 39.73 260 NE
GRC0944 223 232 9 1.59 GRC0944: 9m at 1.6% Li(2)O from 223m Resource Drilling 14.33 290 NE
GRC0406 346 351 5 1.41 GRC0406: 5m at 1.41% Li(2)O from 346m extension of existing hole Geophysics Target 7.05 354 EWY_M
GRC0945 155 158 3 2.01 GRC0945: 3m at 2.02% Li(2)O from 155m Resource Drilling 6.04 240 NW
GRC0966 90 97 7 0.85 GRC0966: 7m at 0.85% Li(2)O from 90m Resource Drilling 5.94 135 KPK
GRC0967 70 75 5 1.12 GRC0967: 5m at 1.13% Li(2)O from 70m Resource Drilling 5.62 102 KPK
GRC0946 174 178 4 1.04 GRC0946: 4m at 1.04% Li(2)O from 174m Resource Drilling 4.16 280 NW
Note: Metal content is based on intercept rather than estimated true width
The 2023 drilling programme is designed to infill the Ewoyaa South-2 deposit
to convert mineralisation from the Inferred to Indicated category.
Approximately 3,000m of infill drilling has been planned at the Ewoyaa South-2
deposit, with a further 7,000m of resource extensional drilling planned at the
Ewoyaa Main, Ewoyaa North-east and Kaampakrom deposits. A further 6,500m of
exploration drilling and 2,000m of diamond core ("DD") drilling is planned as
part of the 2023 field season (refer announcement of 19 April 2023).
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.
Figure 1: Location of reported assay results with highlight drill
intersections
Figure 2: Cross-section A-A' showing assay results received for GRC0961 at
the Ewoyaa South-2 deposit with mineralisation open at depth and along strike
Figure 3: Cross-section B-B' showing assay results received for GRC0951
and GRC0952 at the Ewoyaa South-2 deposit
Figure 4: Cross-section C-C' showing assay results received for GRC0943
and GRC0944 at the Ewoyaa North-East deposit
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 35.3 Mt @ 1.25% Li(2)O for Ewoyaa is
extracted from the Company's announcement dated 1 February 2023, which is
available at atlanticlithium.com.au (https://www.atlanticlithium.com.au/) .
The MRE includes a total of 3.5 Mt @ 1.37% Li(2)O in the Measured category,
24.5 Mt @ 1.25% Li(2)O in the Indicated category and 7.4 Mt @ 1.16% Li(2)O in
the Inferred category. The Company confirms that all material assumptions and
technical parameters underpinning the Mineral Resource Estimate continue to
apply and have not materially changed, and it is not aware of any new
information or data that materially affects the information included in this
announcement or the announcement dated 1 February 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'. 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.
The reported Ore Reserves have been compiled by Mr Harry Warries. Mr Warries
is a Fellow of the Australasian Institute of Mining and Metallurgy and an
employee of Mining Focus Consultants Pty Ltd. He has sufficient experience,
relevant to the style of mineralisation and type of deposit under
consideration and to the activity he is undertaking, to qualify as a Competent
Person as defined in the 'Australasian Code for Reporting of Mineral Resources
and Ore Reserves' of December 2012 ("JORC Code") as prepared by the Joint Ore
Reserves Committee of the Australasian Institute of Mining and Metallurgy, the
Australian Institute of Geoscientists and the Minerals Council of Australia.
Mr Warries gives Atlantic Lithium Limited consent to use this reserve estimate
in reports.
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 Yellow Jersey PR Limited Canaccord Genuity Limited
Nominated Adviser Charles Goodwin Company Broker
Jeff Keating Bessie Elliot Raj Khatri / James Asensio
atlantic@yellowjerseypr.com
Charlie Bouverat
Harry Rees
Tel: +44 (0)20 3004 9512
Tel: +44 (0)20 3470 0470
Tel: +44 (0) 20 7523 4500
Notes to Editors:
About Atlantic Lithium
www.atlanticlithium.com.au (http://www.atlanticlithium.com.au/)
Atlantic Lithium is an AIM and ASX-listed lithium company advancing a
portfolio of lithium projects in Ghana and Côte d'Ivoire through to
production.
The Company's flagship project, the Ewoyaa Project in Ghana, is a significant
lithium spodumene pegmatite discovery on track to become Ghana's first
lithium-producing mine. The Company signed a funding agreement with Piedmont
Lithium Inc. towards the development of the Ewoyaa Project. Atlantic Lithium
is currently advancing the Ewoyaa Project through feasibility studies and
intends to be producing a spodumene concentrate via simple gravity only
process flowsheet.
Atlantic Lithium holds 560km(2) and 774km(2) of tenure across Ghana and Côte
d'Ivoire respectively, comprising significantly under-explored, highly
prospective licences.
Appendix 1: New drill intersections reported in hole ID order,
reported at a 0.4% Li(2)O cut-off and maximum 4m of internal dilution
Hole_ID From_m To_m Interval Est. true thick_m Li(2)O% Intersection Comment Hole Purpose metal content Li x m Hole depth_m Deposit
GRC0406 327 328 1 0.54 GRC0406: 1m at 0.54% Li2O from 327m extension of existing hole Geophysics Target 0.54 354 EWY_M
GRC0406 346 351 5 3 1.41 GRC0406: 5m at 1.41% Li2O from 346m extension of existing hole Geophysics Target 7.05 354 EWY_M
GRC0936 25 26 1 no significant intersections weathered pegmatite Resource Drilling 300 Geophys
GRC0936 199 203 4 no significant intersections Resource Drilling 300 Geophys
GRC0937 83 84 1 no significant intersections Hydro monitoring hole 220 Hydro
GRC0938 242 245 3 no significant intersections Resource Drilling 300 NE
GRC0939 0 100 0 no significant intersections No pegmatite intersected Hydro monitoring hole 100 Hydro
GRC0940 0 100 0 no significant intersections No pegmatite intersected Hydro monitoring hole 100 Hydro
GRC0941 0 300 0 no significant intersections No pegmatite intersected Resource Drilling 300 NE
GRC0942 0 150 0 no significant intersections No pegmatite intersected Hydro monitoring hole 150 Hydro
GRC0943 184 213 29 15 1.37 GRC0943: 29m at 1.37% Li2O from 184m Resource Drilling 39.73 260 NE
GRC0944 223 232 9 5 1.59 GRC0944: 9m at 1.6% Li2O from 223m Resource Drilling 14.33 290 NE
GRC0945 141 142 1 0.48 GRC0945: 1m at 0.48% Li2O from 141m Resource Drilling 0.48 240 NW
GRC0945 147 148 1 0.42 GRC0945: 1m at 0.42% Li2O from 147m Resource Drilling 0.42 240 NW
GRC0945 155 158 3 2.01 GRC0945: 3m at 2.02% Li2O from 155m Resource Drilling 6.04 240 NW
GRC0946 174 178 4 1.04 GRC0946: 4m at 1.04% Li2O from 174m Resource Drilling 4.16 280 NW
GRC0946 225 228 3 1.12 GRC0946: 3m at 1.12% Li2O from 225m Resource Drilling 3.35 280 NW
GRC0947 181 184 3 0.62 GRC0947: 3m at 0.63% Li2O from 181m Resource Drilling 1.87 240 NW
GRC0948 197 204 7 no significant intersections Resource Drilling 250 Geophys
GRC0948 208 211 3 no significant intersections Geophysics Target 250 Geophys
GRC0949 0 230 0 no significant intersections No pegmatite intersected Geophysics Target 230 Geophys
GRC0950 0 260 0 no significant intersections No pegmatite intersected Geophysics Target 260 Geophys
GRC0951 69 98 29 12 1.19 GRC0951: 29m at 1.2% Li2O from 69m Resource Drilling 34.61 130 STH2
GRC0952 23 46 23 10 1.50 GRC0952: 23m at 1.51% Li2O from 23m Resource Drilling 34.56 80 STH2
GRC0953 0 160 0 no significant intersections No pegmatite intersected Resource Drilling 160 STH2
GRC0954 0 180 0 no significant intersections No pegmatite intersected Resource Drilling 180 STH2
GRC0955 28 41 13 6 1.18 GRC0955: 13m at 1.19% Li2O from 28m Resource Drilling 15.39 70 STH2
GRC0956 41 46 5 3 1.06 GRC0956: 5m at 1.07% Li2O from 41m Resource Drilling 5.31 120 STH2
GRC0956 52 56 4 0.80 GRC0956: 4m at 0.81% Li2O from 52m Resource Drilling 3.21 120 STH2
GRC0956 65 74 9 5 0.87 GRC0956: 9m at 0.88% Li2O from 65m Resource Drilling 7.85 120 STH2
GRC0957 4 10 6 no significant intersections weathered pegmatite Resource Drilling 140 STH2
GRC0957 117 121 4 no significant intersections Resource Drilling 140 STH2
GRC0958 0 160 0 no significant intersections No pegmatite intersected Resource Drilling 160 STH2
GRC0959 1 2 1 0.54 GRC0959: 1m at 0.54% Li2O from 1m weathered pegmatite Resource Drilling 0.54 80 STH2
GRC0959 10 34 24 8 1.86 GRC0959: 24m at 1.86% Li2O from 10m Resource Drilling 44.53 80 STH2
GRC0959 44 53 9 6 1.47 GRC0959: 9m at 1.48% Li2O from 44m Resource Drilling 13.24 80 STH2
GRC0959 63 66 3 0.93 GRC0959: 3m at 0.93% Li2O from 63m Resource Drilling 2.78 80 STH2
GRC0960A 43 44 1 0.47 GRC0960A: 1m at 0.47% Li2O from 43m Resource Drilling 0.47 120 STH2
GRC0960A 68 73 5 3 0.73 GRC0960A: 5m at 0.74% Li2O from 68m Resource Drilling 3.66 120 STH2
GRC0960A 75 83 8 6 1.17 GRC0960A: 8m at 1.18% Li2O from 75m Resource Drilling 9.37 120 STH2
GRC0960A 85 86 1 1.11 GRC0960A: 1m at 1.11% Li2O from 85m Resource Drilling 1.11 120 STH2
GRC0960A 88 90 2 1.36 GRC0960A: 2m at 1.36% Li2O from 88m Resource Drilling 2.72 120 STH2
GRC0960A 103 104 1 1.00 GRC0960A: 1m at 1% Li2O from 103m Resource Drilling 1 120 STH2
GRC0961 125 126 1 0.41 GRC0961: 1m at 0.41% Li2O from 125m Resource Drilling 0.41 200 STH2
GRC0961 137 185 48 20 1.31 GRC0961: 48m at 1.31% Li2O from 137m Resource Drilling 62.75 200 STH2
GRC0962 0 230 0 no significant intersections No pegmatite intersected Resource Drilling 230 STH2
GRC0963 56 59 3 no significant intersections weathered pegmatite Resource Drilling 104 KPK
GRC0963 68 72 4 no significant intersections Resource Drilling 104 KPK
GRC0963 86 90 4 no significant intersections Resource Drilling 104 KPK
GRC0964 61 62 1 0.78 GRC0964: 1m at 0.78% Li2O from 61m Resource Drilling 0.78 80 KPK
GRC0965 84 87 3 no significant intersections Resource Drilling 120 KPK
GRC0966 90 97 7 5 0.85 GRC0966: 7m at 0.85% Li2O from 90m Resource Drilling 5.94 135 KPK
GRC0966 100 101 1 0.68 GRC0966: 1m at 0.68% Li2O from 100m Resource Drilling 0.68 135 KPK
GRC0967 70 75 5 4 1.12 GRC0967: 5m at 1.13% Li2O from 70m Resource Drilling 5.62 102 KPK
GRC0968 42 43 1 no significant intersections Resource Drilling 120 KPK
GRC0968 102 103 1 no significant intersections Resource Drilling 120 KPK
GRC0969 0 80 0 no significant intersections No pegmatite intersected Resource Drilling 80 KPK
GRC0970 18 23 5 4 0.46 GRC0970: 5m at 0.47% Li2O from 18m weathered pegmatite Resource Drilling 2.31 90 KPK
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 Easting Northing Elevation Dip Hole Azimuth Hole depth_m Hole Purpose Comment
GRC0406 715780 579572 42.44 -50 305 354 Geophysics Target extension of existing hole from 225m
GRC0936 715952 578731 20.52 -50 270 300 Resource Drilling weathered pegmatite
GRC0937 715931 579818 25.89 -90 0 220 Hydro monitoring hole
GRC0938 716299 579504 13.26 -60 210 300 Resource Drilling
GRC0939 717239 580599 19.96 -90 0 100 Hydro monitoring hole No pegmatite intersected
GRC0940 715618 578728 28.37 -90 0 100 Hydro monitoring hole No pegmatite intersected
GRC0941 716195 579575 14.73 -60 210 300 Resource Drilling No pegmatite intersected
GRC0942 714717 579505 25.09 -90 0 150 Hydro monitoring hole No pegmatite intersected
GRC0943 716239 579479 13.63 -50 210 260 Resource Drilling
GRC0944 716247 579504 13.71 -50 210 290 Resource Drilling
GRC0945 715683 580340 66.10 -90 0 240 Resource Drilling
GRC0946 715682 580338 65.99 -60 270 280 Resource Drilling
GRC0947 715623 580381 66.74 -90 0 240 Resource Drilling
GRC0948 715703 578807 28.47 -50 305 250 Geophysics Target
GRC0949 715932 579029 30.74 -50 130 230 Geophysics Target No pegmatite intersected
GRC0950 715906 579083 40.16 -50 180 260 Geophysics Target No pegmatite intersected
GRC0951 715446 578343 54.91 -50 305 130 Resource Drilling
GRC0952 715432 578354 56.22 -50 305 80 Resource Drilling
GRC0953 715492 578378 56.86 -60 305 160 Resource Drilling No pegmatite intersected
GRC0954 715525 578384 54.91 -50 305 180 Resource Drilling No pegmatite intersected
GRC0955 715464 578455 46.88 -50 125 70 Resource Drilling
GRC0956 715550 578456 40.76 -50 125 120 Resource Drilling
GRC0957 715552 578456 40.65 -60 305 140 Resource Drilling weathered pegmatite
GRC0958 715587 578467 38.23 -60 270 160 Resource Drilling No pegmatite intersected
GRC0959 715529 578534 33.21 -50 125 80 Resource Drilling weathered pegmatite
GRC0960A 715497 578551 31.10 -50 125 120 Resource Drilling
GRC0961 715661 578536 26.03 -60 305 200 Resource Drilling
GRC0962 715661 578535 26.03 -70 305 230 Resource Drilling No pegmatite intersected
GRC0963 715702 581546 48.97 -50 305 104 Resource Drilling weathered pegmatite
GRC0964 715705 581542 48.95 -50 0 80 Resource Drilling
GRC0965 715710 581511 43.26 -50 0 120 Resource Drilling
GRC0966 715732 581521 50.75 -50 305 135 Resource Drilling
GRC0967 715749 581549 56.19 -50 0 102 Resource Drilling
GRC0968 715750 581507 52.67 -50 0 120 Resource Drilling
GRC0969 715748 581769 19.78 -50 0 80 Resource Drilling No pegmatite intersected
GRC0970 715748 581769 19.78 -50 0 90 Resource Drilling weathered pegmatite
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, · RC drill holes were routinely sampled at 1m intervals with a
or specific specialised industry standard measurement tools appropriate to the nominal 3-6kg sub-sample split off for assay using a rig-mounted cone splitter
minerals under investigation, such as down hole gamma sondes, or handheld XRF at 1m intervals.
instruments, etc.). These examples should not be taken as limiting the broad
meaning of sampling. · DD holes were quarter core sampled at 1m intervals or to
geological contacts for geochemical analysis.
· Include reference to measures taken to ensure sample
representivity and the appropriate calibration of any measurement tools or · For assaying, splits from all prospective ore zones (i.e. logged
systems used. pegmatites +/- interburden) were sent for assay. Outside of these zones, the
splits were composited to 4m using a portable riffle splitter.
· Aspects of the determination of mineralisation that are Material
to the Public Report. · Holes without pegmatite were not assayed.
· In cases where 'industry standard' work has been done this would · Approximately 5% of all samples submitted were standards and
be relatively simple (e.g. 'reverse circulation drilling was used to obtain 1m coarse blanks. Blanks were typically inserted with the interpreted ore zones
samples from which 3kg was pulverised to produce a 30g charge for fire after the drilling was completed.
assay'). In other cases more explanation may be required, such as where there
is coarse gold that has inherent sampling problems. Unusual commodities or · Approximately 2.5% of samples submitted were duplicate samples
mineralisation types (e.g. submarine nodules) may warrant disclosure of collected after logging using a riffle splitter and sent to an umpire
detailed information. 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 Na(2)O(2) fusion with
combination OES/MS).
· ALS Laboratory in Brisbane was used for the Company's initial due
diligence work programs 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
Na(2)O(2) fusion, and combination MS/ICP analysis.
Criteria JORC Code Explanation Commentary
Drilling techniques · Drill type (e.g. core, reverse circulation, open-hole hammer, · Six phases of drilling were undertaken at the Project using RC
rotary air blast, auger, Bangka, sonic, etc.) and details (e.g. core diameter, and DD techniques. All the RC drilling used face sampling hammers.
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.). · Phase 1 and 2 programs 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 · A semi-quantitative estimate of sample recovery was completed for
and results assessed. the vast majority of drilling. This involved weighing both the bulk samples
and splits and calculating theoretical recoveries using assumed densities.
· Measures taken to maximise sample recovery and ensure Where samples were not weighed, qualitative descriptions of the sample size
representative nature of the samples. were recorded. Some sample loss was recorded in the collaring of the RC
drill holes.
· Whether a relationship exists between sample recovery and grade
and whether sample bias may have occurred due to preferential loss/gain of · DD recoveries were measured and recorded. Recoveries in excess
fine/coarse material. of 95.8% have been achieved for the DD drilling program. Drill sample recovery
and quality is adequate for the drilling technique employed.
· The DD twin program 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 · All drill sample intervals were geologically logged by Company
geotechnically logged to a level of detail to support appropriate Mineral geologists.
Resource estimation, mining studies and metallurgical studies.
· Where appropriate, geological logging recorded the abundance of
· Whether logging is qualitative or quantitative in nature. Core specific minerals, rock types and weathering using a standardised logging
(or costean, channel, etc.) photography. system that captured preliminary metallurgical domains.
· The total length and percentage of the relevant intersections · All logging is qualitative, except for the systematic collection
logged. 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 · RC samples were cone split at the drill rig. For interpreted
core taken. waste zones the 1 or 2m rig splits were later composited using a riffle
splitter into 4m composite samples.
· If non-core, whether riffled, tube sampled, rotary split, etc.
and whether sampled wet or dry. · DD core was cut with a core saw and selected half core samples
dispatched to Nagrom Laboratory in Perth for preliminary metallurgical test
· For all sample types, the nature, quality and appropriateness of work.
the sample preparation technique.
· The other half of the core, including the bottom-of-hole
· Quality control procedures adopted for all sub-sampling stages to orientation line, was retained for geological reference.
maximise representivity of samples.
· The remaining DD core was quarter cored for geochemical analysis.
· Measures taken to ensure that the sampling is representative of
the in situ material collected, including for instance results for field · Since December 2018, samples were submitted to Intertek Tarkwa
duplicate/second-half sampling. (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
· Whether sample sizes are appropriate to the grain size of the 1,500g split crushed sample; which was subsequently pulverised in a LM2 ring
material being sampled. 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 · Analysis for lithium and a suite of other elements for Phase 1
laboratory procedures used and whether the technique is considered partial or drilling was undertaken at SGS Johannesburg / Vancouver by ICP-OES after
total. Sodium Peroxide Fusion. Detection limits for lithium (10ppm - 100,000ppm).
Sodium Peroxide fusion is considered a "total" assay technique for lithium.
· For geophysical tools, spectrometers, handheld XRF instruments,
etc., the parameters used in determining the analysis including instrument · Review of standards and blanks from the initial submission to
make and model, reading times, calibrations factors applied and their Johannesburg identified failures (multiple standards reporting outside control
derivation, etc. 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
· Nature of quality control procedures adopted (e.g. standards, method of analysis and sample type.
blanks, duplicates, external laboratory checks) and whether acceptable levels
of accuracy (i.e. lack of bias) and precision have been established. · 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 · Significant intersections were visually field verified by company
independent or alternative company personnel. geologists and Shaun Searle of Ashmore during the 2019 site visit.
· The use of twinned holes. · Drill hole data was compiled and digitally captured by Company
geologists in the field. Where hand-written information was recorded, all
· Documentation of primary data, data entry procedures, data hardcopy records were kept and archived after digitising.
verification, data storage (physical and electronic) protocols.
· Phase 1 and 2 drilling programs were captured on paper or locked
· Discuss any adjustment to assay data. 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 programs 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
programs. 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 Li(2)O%.
Location of data points · Accuracy and quality of surveys used to locate drill holes · The collar locations were surveyed in WGS84 Zone 30 North using
(collar and down-hole surveys), trenches, mine workings and other locations DGPS survey equipment, which is accurate to 0.11mm in both horizontal and
used in Mineral Resource estimation. vertical directions. All holes were surveyed by qualified surveyors. Once
validated, the survey data was uploaded into Datashed.
· Specification of the grid system used.
· RC drill holes were routinely down hole surveyed every 6m using a
· Quality and adequacy of topographic control. 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) 32km(2), 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. · 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
· Whether the data spacing and distribution is sufficient to -60°. Planned hole orientations/dips were occasionally adjusted due to pad
establish the degree of geological and grade continuity appropriate for the and/or access constraints.
Mineral Resource and Ore Reserve estimation procedure(s) and classifications
applied. · 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
· Whether sample compositing has been applied. 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 · The drill line and drill hole orientation are oriented as close
possible structures and the extent to which this is known, considering the as practicable to perpendicular to the orientation of the general mineralised
deposit type. orientation.
· If the relationship between the drilling orientation and the · Most of the drilling intersects the mineralisation at close to 90
orientation of key mineralised structures is considered to have introduced a degrees ensuring intersections are representative of true widths. It is
sampling bias, this should be assessed and reported if material. possible that new geological interpretations and/or infill drilling
requirements may result in changes to drill orientations on future programs.
· 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 · Prior to the drilling program, a third-party Project review was
data. 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 · The Project covers two contiguous licences the Mankessim (RL
agreements or material issues with third parties such as joint ventures, 3/55) and Mankessim South (PL3/109) licence.
partnerships, overriding royalties, native title interests, historical sites,
wilderness or national park and environmental settings. · The Mankessim is a joint-venture, with the license in the name of
the joint-venture party (Barari Development Ghana Limited). Document number:
· The security of the tenure held at the time of reporting along 0853652-18.
with any known impediments to obtaining a licence to operate in the area.
· The Project occurs within a Mineral Prospecting license and was
renewed on the 27th July 2021 for a further three-year period, valid until
27th July 2024.
· The Mankessim South licence is a wholly-owned subsidiary of Green
Metals Resources. The Mineral Prospecting license renewal was submitted in
Nov 2022 for a further three-year period.
· The tenement is in good standing with no known impediments.
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 1960's. 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 · No exploration results are being reported.
exploration results including a tabulation of the following information for
all Material drill holes: · All information was included in the appendices (of the Mineral
Resource report). No drill hole information were excluded (from the Mineral
· easting and northing of the drill hole collar Resource report).
· 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.
Criteria JORC Code Explanation Commentary
Data aggregation methods · In reporting Exploration Results, weighting averaging techniques, · Exploration results are not being reported.
maximum and/or minimum grade truncations (e.g. cutting of high grades) and
cut-off grades are usually Material and should be stated. · Not applicable as a Mineral Resource is being reported.
· Where aggregate intercepts incorporate short lengths of high · No metal equivalent values are being reported.
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.
Relationship between mineralisation widths and intercept lengths · These relationships are particularly important in the reporting · The drill line and drill hole orientation are oriented as close
of Exploration Results. to 90° degrees to the orientation of the anticipated mineralised orientation
as practicable.
· If the geometry of the mineralisation with respect to the drill
hole angle is known, its nature should be reported. · The majority of the drilling intersects the mineralisation
between 60° and 80° degrees.
· 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').
Diagrams · Appropriate maps and sections (with scales) and tabulations of · Relevant diagrams have been included within the Mineral Resource
intercepts should be included for any significant discovery being reported. report 'Ewoyaa Lithium Project Mineral Resource Estimate' dated 25 March 2023.
These should include, but not be limited to, a plan view of drill hole collar
locations and appropriate sectional views.
Balanced reporting · Where comprehensive reporting of all Exploration Results is not · All hole collars were surveyed WGS84 Zone 30 North grid using a
practicable, representative reporting of both low and high grades and/or differential GPS. All RC and DD holes were down-hole surveyed with a
widths should be practiced to avoid misleading reporting of Exploration north-seeking gyroscopic tool.
Results.
· Exploration results are not being reported.
Other substantive exploration data · Other exploration data, if meaningful and material, should be · Results were estimated from drill hole assay data, with
reported including (but not limited to): geological observations; geophysical geological logging used to aid interpretation of mineralised contact
survey results; geochemical survey results; bulk samples - size and method of positions.
treatment; metallurgical test results; bulk density, groundwater, geotechnical
and rock characteristics; potential deleterious or contaminating substances. · Geological observations are included in the report.
Further work · The nature and scale of planned further work (e.g. tests for · Follow up RC and DD drilling may be undertaken.
lateral extensions or depth extensions or large-scale step-out drilling).
· Further metallurgical test work may be required as the Project
· Diagrams clearly highlighting the areas of possible extensions, progresses through the study stages.
including the main geological interpretations and future drilling areas,
provided this information is not commercially sensitive. · Drill spacing is currently considered adequate for the current
level of interrogation of the Project.
~end~
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