22 January 2025
BWA
Group PLC
("BWA",
or the "Company")
JORC
2012 Inferred Initial Mineral Resource Estimate for the Dehane 2
Heavy Mineral Sands Project, Cameroon
BWA Group
plc [AQSE: BWAP], which has mineral exploration permits in
Cameroon, mining claims in
Canada, and is quoted on
London's AQSE Growth Market,
provides results from its recently completed Inferred initial
Mineral Resource Estimate (MRE) at its 90% owned, through BWA
Resources (UK) Ltd ("BWAR"),
Dehane 2 heavy mineral sands permit, located in the South Region of
Central Cameroon
("Dehane
2" or the
"Dehane
Project").
The Dehane
Project is located 166 km southwest of Yaoundé, and 70 km from the
deep seaport and industrial zone of Kribi. The D2 permit covers an
area of 54 km2.
It includes 14 km of strike length of the Nyong river system, an
area known to be prospective for Ilmenite, Rutile, Zircon, and
Kyanite heavy mineral sand (HMS) mineralisation.
Moreover,
the licence covers some 20 km of the mouth of the Nyong River as it
empties into the Gulf of Guinea
and adjacent sandy beach-setting coastline. The beach swash zone
and the area extending inland by up to 150
m were the target for the 79-hole exploration drilling, the
basis for the MRE being reported herein.
Highlights
Inferred
initial Mineral Resources reported in accordance with the JORC Code
2012 edition, include:
-
Approximately
4.2 million tonnes (mt) at 3.5% THM cut-off.
-
Comprising
of ilmenite at 0.99%, rutile at 0.13% and zircon at
0.11%.
-
HMS
mineralisation encountered from the surface down to the basement
occurring at depths around 6-10
m.
-
Mineralisation
is open in all compass directions.
-
4 mt to 6 mt at 1.4 to 1.6% kyanite in the Exploration
Target Category, pending testwork results for a potential saleable
product.
-
Grinding
Solutions (GSL) have been commissioned to undertake the kyanite
testwork and the results are expected in early Q2 2025.
An
enhanced version of this announcement, including figures, maps and
tables can be viewed on the link below.
Jonathan Wearing, Chairman of BWA Group Plc,
commented:
"This
is an excellent result for the Company and validates the investment
we are making to unlock an integral part of the natural resource
wealth for Cameroon. It delivers a
step-change in the value perception of BWA and sets it on a path,
albeit subject to further testwork, to reinvigorate heavy mineral
sands production in the country. The three Dehane exploration
permits are located downstream on the Nyong river from the historic
and proven rutile mining district at Akonolinga.
We
intend to advance Dehane 2 with further iterations of the MRE
before embarking on a Preliminary Economic Assessment as a next
step towards demonstrating economic viability. This commitment will
include ESIA (environmental and social impact assessment) baseline
studies to both local and international standards.
If the
kyanite testwork proves positive, we will incorporate this
potential revenue stream into an updated MRE which we would expect
to issue in Q2 2025. In conjunction, BWA is evaluating offtake
opportunities for what is a niche specialist market that includes
high temperature refractories.
We
look forward to providing further results in due course for both
Dehane 2 and the four other permits that we are actively exploring
in our Cameroon
portfolio."
Work
Completed
The
results of the recent drilling programmes (as announced on
19 December 2024, 5 June 2024 and 27
February 2024) were sufficiently encouraging to complete an
initial MRE. The programmes consisted of 19 and 79 drillholes at a
spacing of between 250 and 500 metres along strike and around 50 to
100 metres across the project width where access permitted.
Drillhole locations are shown in previous announcement dated
19 December 2024. Holes were drilled
to an average depth of around six metres using percussion
drilling. Samples
were submitted to Scientific Services Laboratory, South Africa, for heavy liquid separation
(HLS) and X-ray diffraction (XRD). Significant
intercepts for THM% and VHM% are presented in the previous
announcement dated 19 December
2024.
Computerised
3-dimensional geological modelling, block model grade interpolation
and mineral resource estimation was completed by Addison Mining
Services Ltd for the drill tested beach sand area, covering an
approximate aerial extent of 14-15 km long x 150-200 m wide. Classification of resources were
completed based on drill spacing, quality of sample, geostatistical
and visual assessment of grade continuity and drill sample versus
block grade correlation.
Reporting
of resources with Reasonable Prospects of Eventual Economic
Extraction (RPEEE) completed by use of calculated cut-off grade for
Valuable Heavy Mineral (VHM) contents, utilising assumed reasonable
and industry accepted recovery, mining and processing costs, and
product selling prices.
The
presence of kyanite is currently reported as an Exploration Target
range of tonnes and grades within the boundaries of the initial MRE
model, pending results of current testwork.
Geology
and Geological Interpretation
The Dehane
licences are located in the Western Cameroon Domain, which extends
along the border between Nigeria
and Cameroon. This domain consists
of a series of medium-grade to high-grade schists and gneisses of
volcanic and volcano-sedimentary origin, intruded by later-stage
granitoid complexes, the basement rocks are the source of heavy
minerals.
The Nyong
River is the main river which runs through the licence
areas.
The BWAR
licences (D1, D2 and D3) allow access to approximately 60 km of the
prospective Nyong River floodplain system, deltas, estuarine
coastline and associated tributaries.
The
licences encompass a large active river system and an even larger
paleo-floodplain area, and marine coastline observed in satellite
imagery, although this has yet to be fully ground-truthed through
fieldwork. This paleo-floodplain is likely to be a significant
target for exploration and covers the length of the river with an
initial expected width of over 2 km in the north and increasing in
the south. Other rivers of various importance are found there:
Owoumbé, Nkoudou, Bidinga, Mbebe, Mboke, and Ongué.
The Dehane
area has been known for some historic small-scale artisanal
historical rutile mining. However,
the extent of its exploitation has not translated to concentrated
modern exploration.
Dehane 2
comprises approximately 14 kms of the Nyong river system, an area
known to be prospective for Ilmenite, Rutile, Zircon and Kyanite
heavy mineral sand mineralisation. Moreover, the licence covers
some 20 km of the mouth of the Nyong River as it empties into the
Gulf of Guinea. A river mouth can
lead to a change in flow conditions that can cause the fluvial
system to deposit any supplementary sediment including heavy
mineral sand (HMS) it is carrying, where potentially economic
accumulations of HMS are found within the lowest energy zone on the
beach, the swash zone.
Mineralisation
Rutile,
ilmenite and kyanite were visible during the drilling. Generally,
the rutile grains are reddish and medium to coarse-grained compared
to the black finer-grained ilmenite (reported on 27 February 2024).
The sands
are generally thicker towards the southern part of the Dehane 2
licence, although the XRD results show that the HMS mineralisation
is continuous and of similar grades (with some areas of higher and
lower grade, expected due to the nature of deposition. Rutile and
ilmenite mineralisation was observed in all sand horizons with
larger grains of heavy minerals located within the coarser sands.
Micas are generally observed in the drillhole near the boundary to
the gneiss bedrock.
The
typical drillhole lithologies consist of a thin layer of organic
soil-sandy material measuring less than 10 cm from the surface.
This layer overlies a varying thickness of coarse to medium-grained
sands, where the HMS is predominant. The gneiss bedrock's depth
varies between six to seven metres with depths down to ten metres
not uncommon.
Mineral
Resource Estimate
The
initial Inferred Mineral Resource Estimate has been completed by
Addison Mining Services Ltd., an independent consultancy based in
the United Kingdom and is reported
in accordance with the JORC Code 2012 edition.
Resources
are of the Inferred category and include.
-
Approximately
4.2 million tonnes at 3.5% THM cut-off.
-
Comprising
of ilmenite at 0.99%, rutile at 0.13% and zircon at
0.11%.
The
results of the recent drilling programmes (as announced on
19 December 2024, 5 June 2024 and 27
February 2024) were sufficiently encouraging to complete a
maiden MRE. The programmes consisted of 19 and 79 drillholes at a
spacing of between 250 and 500 metres along strike and around 50 to
100 metres across the project width where access
permitted.
The
Mineral Resource Estimate is based on wireframe restricted block
modelling with grade estimation by Ordinary Kriging. The total
resources are presented in Table 1 below above a cut-off grade off
3.5% THM.
The
estimate incorporates 98 drillholes completed by BWAR in
November 2023 and October 2024, for a total of 516.70 metres
(ranging between 2.5 m and
10.0 m in depth). All holes were
vertical.
Table 1:
Inferred Mineral Resources for the Dehane 2, HMS Project,
Cameroon, reported at a cut-off of
3.5% THM.
THM
(%)
|
TONNAGE
(t)
|
THM
(%)
|
THM
(t)
|
VHM
(%)
|
VHM
(t)
|
Ilmenite
(%)
|
Ilmenite
(t)
|
Rutile
(%)
|
Rutile
(t)
|
Zircon
(%)
|
Zircon
(t)
|
Slime
(%)
|
Oversize
(%)
|
3.50
|
4,200,000
|
4.80
|
200,000
|
1.23
|
52,000
|
0.99
|
42,000
|
0.13
|
5,500
|
0.11
|
4,500
|
2.11
|
2.69
|
Notes
relating to Mineral Resource Estimate:
-
The
independent Competent Person for the Mineral Resource Estimate, as
defined by the JORC Code (2012 edition), is Mr. James Hogg, MSc, MAIG, of Addison Mining
Services Ltd since April 2014. The
effective date of the Mineral Resource Estimate is
15th
of
January 2025 and is reported above at
a cut-off of 3.5% THM.
-
Mineral
assemblage is presented as a percent of the in-situ
material.
-
Volumes are
converted to tonnages based on a density of 1.44
g/cm3.
-
No
mineral reserve estimates have been undertaken.
-
The
quantity and grade of reported Inferred Resources in this Mineral
Resource Estimate are uncertain in nature and there has been
insufficient exploration to define these Inferred Resources as
Indicated or Measured, however it is reasonably expected that the
majority of Inferred Mineral Resources could be upgraded to
Indicated Mineral Resources with continued exploration.
-
The
deposit is open in all compass directions.
-
The
Inferred mineral resource category set out in the table above at
cut-off grades 3.5% THM comply with the resource definitions as
described in the Australasian Code for Reporting of Exploration
Results, Mineral Resources and Ore Reserves. The JORC Code, 2012
Edition. Prepared by: The Joint Ore Reserves Committee of The
Australasian Institute of Mining and Metallurgy, Australian
Institute of Geoscientists and Minerals Council of Australia (JORC).
-
Numbers are
rounded to reflect the fact that an Estimate of Resources is being
reported. Rounding of numbers may result in differences in
calculated totals and averages. All tonnes are metric
tonnes.
-
Estimates of
mineral assemblage (ilmenite, rutile and zircon) are determined by
screening and magnetic separation. Fractions were analysed by
XRD.
-
Cut-off grade
selection was based on the assumption of $1.5 processing, plus $0.5/t G&A and $0.5/t rehabilitation. Mining and transport costs
were assumed as $2/t. $350 ilmenite based on product >50%
TiO2,
$1600 zircon based on >65% Zr and
$1600 on >95%
TiO2.
Cut-off calculated on an ilmenite equivalent as primary input to
VHM. Kyanite and garnet not included.
Kyanite
Exploration Target
As part of
the study, metallurgical testwork is being completed on samples of
coarse kyanite to understand if there is a potentially economic
mineral that can be used for heat resistant applications with
minimal expansion (high temperature refractory uses). There is
planned testwork in progress to determine/demonstrate saleable
product specifications. The results for the testwork are due in
early Q2, 2025.
As there
is a potential for a saleable product, the kyanite has been
presented as an Exploration Target range at this time, with a view
to update the Mineral Resource, if and when the results are
positive.
The
results of the Exploration Target range are outlined below at a
cut-off of 3.5% THM, in line with the current resource, although
this is expected to reduce with the addition of kyanite
credits.
-
4 mt to 6 mt tonnes at 1.4 to 1.6% kyanite in the
Exploration Target Category, pending testwork results for potential
saleable product for use in high temperature refractory
uses.
Competent
Person's Statement
The
information in this report which relates to the BWA Dehane 2
Project is based upon and fairly represents information and data
collected, supervised and compiled by Mr Lewis Harvey, MSc., Principal Consulting
Geologist for Addison Mining Services, who is a Member of the
Australian Institute of Geoscientists.
The
results were reviewed by Mr J.N.
Hogg, MSc. MAIG, Principal Geologist for Addison Mining
Services (AMS) and Non-executive Director of BWAR.
Mr
Harvey and Mr Hogg have sufficient experience relevant to the style
of mineralisation, the type of deposit under consideration and the
activity undertaken to qualify as a Competent Person as defined in
the JORC Code 2012 edition of the Australasian Code for Reporting
of Exploration Results, Mineral Resources and Ore
Reserves.
Mr
Harvey and Mr Hogg have reviewed and verified the technical
information that forms the basis of and has been used in the
preparation of this announcement, including all sampling and
analytical data, and analytical techniques where applicable. Mr
Harvey and Mr Hogg consent to the inclusion in this announcement of
the matters based on the information, in the form and context in
which it appears.
Forward-Looking
Statement
This
announcement contains forward-looking statements which involve a
number of risks and uncertainties. These forward-looking statements
are expressed in good faith and believed to have a reasonable
basis. These statements reflect current expectations, intentions or
strategies regarding the future and assumptions based on currently
available information. Should one or more of the risks or
uncertainties materialise, or should underlying assumptions prove
incorrect, actual results may vary from the expectations,
intentions and strategies described in this announcement. No
obligation is assumed to update forward-looking statements if these
beliefs, opinions and estimates should change or to reflect other
future developments.
For
further information on the Company, please visit
www.bwagroupplc.com/index.html or:
BWA
Group PLC
James
Butterfield
Managing
Director
|
+44 (0)
7770 225 253
enquiries@bwagroupplc.com
|
Allenby
Capital Limited
Corporate
Adviser
|
+44 (0)20
3328 5656
Nick
Harriss/Lauren Wright
|
Oberon
Capital
Broker
|
+44 (0)20
3179 5300
Nick
Lovering/Adam Pollock
|