REG - Atlantic Lithium Ltd - Dog-Leg Delivers Further High-grade Intersections
07/05/2024 07:15
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RNS Number : 3690N Atlantic Lithium Limited 07 May 2024
7 May 2024
Dog-Leg Delivers Further High-grade Intersections
Resource Extension Drilling Results
Ewoyaa Lithium Project, Ghana, West Africa
27m at 1.85% Li(2)O from 126m returned at Dog-Leg target, outside of current MRE(1)
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% Li(2)O JORC (2012)
compliant Ewoyaa Mineral Resource Estimate(1) ("MRE" or the "Resource"),
including highlights at a 0.4% Li(2)O cut-off and a maximum 4m of internal
dilution of:
o GRC0177: 27m at 1.85% Li(2)O from 126m
o GRC1059: 15m at 1.08% Li(2)O from 126m
o GRC1058: 8m at 0.93% Li(2)O 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 MRE(1), 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% Li(2)O 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% Li(2)O 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 MRE(1) (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% Li(2)O cut-off and maximum of 4m of internal dilution
Hole_ID From_m To_m Interval_m Hole depth_m Li(2)O% Intersection metal content Li x m Hole Purpose Deposit
GRC0177 126 153 27 180 1.85 GRC0177: 27m at 1.85% Li(2)O from 126m 49.85 Resource Drilling Dog-Leg
GRC1059 126 141 15 180 1.07 GRC1059: 15m at 1.08% Li(2)O from 126m 16.06 Resource Drilling Dog-Leg
GRC1057 38 48 10 120 0.75 GRC1057: 10m at 0.76% Li(2)O from 38m 7.51 Resource Drilling Dog-Leg
GRC1058 88 96 8 107 0.93 GRC1058: 8m at 0.93% Li(2)O 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 MRE(1). Highlights include hole GRC0177: 27m at 1.85% Li(2)O
from 126m and hole GRC1059: 15m at 1.08% Li(2)O 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% 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 3.5Mt @ 1.37% Li(2)O in the Measured category,
24.5Mt @ 1.25% Li(2)O in the Indicated category and 7.4Mt @ 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. 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 Yellow Jersey PR Limited Canaccord Genuity Limited
Nominated Adviser Charles Goodwin Financial Adviser:
Jeff Keating Bessie Elliot Raj Khatri (UK) /
atlantic@yellowjerseypr.com
Charlie Bouverat
Duncan St John, Christian Calabrese (Australia)
Tel: +44 (0)20 3004 9512
Tel: +44 (0)20 3470 0470
Corporate Broking:
James Asensio
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 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 509km(2) and
774km(2) 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% Li(2)O cut-off and maximum 4m of internal dilution
Hole_ID From_m To_m Interval_m Est. true thick_m Hole depth_m Li(2)O% Intersection Comment metal content Li x m Hole Purpose Deposit
GRC0177 126 153 27 26 180 1.85 GRC0177: 27m at 1.85% Li(2)O 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% Li(2)O 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% Li(2)O 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% Li(2)O 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% Li(2)O 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 · RC drill holes were routinely sampled at 1m intervals with a
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 systems used. · For assaying, splits from all prospective ore zones (i.e. logged
pegmatites +/- interburden) were sent for assay. Outside of these zones, the
· Aspects of the determination of mineralisation that are Material to splits were composited to 4m using a portable riffle splitter.
the Public Report.
· Holes without pegmatite were not assayed.
· In cases where 'industry standard' work has been done this would be
relatively simple (e.g. 'reverse circulation drilling was used to obtain 1m · Approximately 5% of all samples submitted were standards and coarse
samples from which 3kg was pulverised to produce a 30g charge for fire blanks. Blanks were typically inserted with the interpreted ore zones after
assay'). In other cases more explanation may be required, such as where there the drilling was completed.
is coarse gold that has inherent sampling problems. Unusual commodities or
mineralisation types (e.g. submarine nodules) may warrant disclosure of · Approximately 2.5% of samples submitted were duplicate samples
detailed information. 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 Na(2)O(2) 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 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 and
rotary air blast, auger, Bangka, sonic, etc.) and details (e.g. core diameter, 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 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 · 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 of
fine/coarse material. 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 · 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 (or specific minerals, rock types and weathering using a standardised logging
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 of
logged. 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 · RC samples were cone split at the drill rig. For interpreted
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 independent · Significant intersections were visually field verified by company
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 programmes 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 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 Li(2)O%.
Location of data points · Accuracy and quality of surveys used to locate drill holes (collar · The collar locations were surveyed in WGS84 Zone 30 North using
and down-hole surveys), trenches, mine workings and other locations used in DGPS survey equipment, which is accurate to 0.11mm in both horizontal and
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 as
possible structures and the extent to which this is known, considering the 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 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 · Prior to the drilling programme, 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 3/55)
agreements or material issues with third parties such as joint ventures, 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 licence in the name of
the joint-venture party (Barari DV Ghana Limited). Document number:
· The security of the tenure held at the time of reporting along with 0853652-18.
any known impediments to obtaining a licence to operate in the area.
· 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 · 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 grade · No metal equivalent values are being reported.
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 of · The drill line and drill hole orientation are oriented as close to
Exploration Results. 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 geological
reported including (but not limited to): geological observations; geophysical logging used to aid interpretation of mineralised contact positions.
survey results; geochemical survey results; bulk samples - size and method of
treatment; metallurgical test results; bulk density, groundwater, geotechnical · Geological observations are included in the report.
and rock characteristics; potential deleterious or contaminating substances.
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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