TIDMBHL
RNS Number : 9629T
Bradda Head Lithium Ltd
20 November 2023
20 November 2023
Bradda Head Lithium Ltd
("Bradda Head", "Bradda", "BHL" or the "Company")
Positive preliminary metallurgical results on samples from Jumbo
Spodumene Pegmatite target at San Domingo Pegmatite District,
Arizona
Bradda Head Lithium Ltd (AIM:BHL, TSX-V:BHLI, OTCQB:BHLIF), the
North America-focused lithium development group, is pleased to
announce positive metallurgical heavy liquid separation ("HLS")
results from test work undertaken by the SGS Metallurgical Process
Facility in Lakefield, Canada ("SGS Canada") on quartered drill
core samples taken from its Jumbo Exploration Target at San Domingo
District, Arizona, USA.
Overview
-- Three composite samples were selected for test-work,
representing the low grade, medium grade and high-grade environment
reflected in the maiden 2022/2023 exploration programme previously
reported from drilling undertaken at the Jumbo Target in the San
Domingo Pegmatite district in Arizona.
-- After discussion with SGS Canada, an initial HLS test was
undertaken to evaluate the potential for dense media separation
("DMS") to produce a sellable Li-oxide concentrate product (see
attached test work flowsheet). This test work is predominantly
preliminary in its approach. The measured head grade of the samples
were 3.05% Li(2) O, 1.03% Li(2) O and 0.34% Li(2) O, reflecting the
high, medium and low-grade range seen in our drilling results to
date.
-- Despite the preliminary nature of this test-work programme,
it was highly encouraging to see the medium-grade sample produce an
'in spec' lithium oxide concentrate product with a 6.0% Li(2) O
grade and an interpolated recovery of contained lithium to the
concentrate of 50.3%, at a 1/4 " size crush size. Tailings
rejection was considered efficient in this scenario with the
rejection of 60.6% mass and a loss of only 2.1% lithium.
-- Alternately, at a crush size of 3/8" (9.5 mm), a concentrate
was produced with a grade of 5.5 % Li(2) O at a 55.5% recovery of
contained lithium oxide. This is still considered in spec in the
current market. 'In spec' Li concentrate currently sells in the
Lithium-Oxide Spot Market for circa US$2,100/ tonne.
-- Using the medium-grade sample, the flotation feed, a
combination of middling product from the HLS testing at a crush
size of 1/4 " and under sized fraction (minus 0.85 mm), recorded an
upgraded value of 1.57% Li(2) O with Li distribution of 47.0% and a
mass distribution of 30.5%.
-- At our request, SGS Canada also undertook Tescan Integrated
Mineral Analyzer analysis of the medium grade sample, finding a
dominance of spodumene as the primary lithium mineral with
possible, but very minor petalite and eucryptite, along with
muscovite, minor beryl, tourmaline, calcite, and apatite. The
overall iron content is low, <1.0%, indicative of a very good
concentrate product.
-- Bradda is currently undertaking a second drilling programme
at its San Domingo Pegmatite District with approximately 75% of the
programme being complete. Assay results to date were released on
November 12 2023, highlighted by drill hole SD-DH23-049 which
contains 6.35m @ 0.83% Li(2) O followed by 3.05m @ 1.03% Li(2) O,
with more results arriving in the near future.
-- Metallurgical test work is now currently on hold whilst
Bradda collects more representative samples from this next phase of
drilling to undertake a more detailed test work programme.
Bradda has 33km(2) license area under its control within this
exciting pegmatite district. It is a historical lithium mining
environment with over 7 historic mines that focused on shallow open
pit extraction of spodumene during the late 1940s and early 1950s.
Bradda commenced drilling in H2 of 2022 (7,300m) and is on its
second campaign of 6,100 meters of core drilling, designed to
expand on existing mineralized intercepts and drill-test newly
developed high-quality lithium in pegmatite targets derived from
soil sampling and surface mapping.
Diamond core drilling continues at the San Domingo Pegmatite
project with approximately 75% of the program completed, where many
of the holes have encountered long intervals of pegmatite with
visible spodumene mineralization. Assay results have been slow to
arrive due to the summer rush at the laboratory, but drilling
progress is good. Additional permits were received from the State
and BLM, sites are being constructed at the historic Morning Star
lithium mine and drilling there is planned to commence shortly. The
Company hopes to have news on San Domingo within the next few weeks
as preliminary results have started to arrive.
Ian Stalker, Executive Chairman, commented:
"These results are highly encouraging, and quite simply better
than expected from what can only be described as preliminary
non-detailed scoping test work. To produce an 'in spec' sellable
gravity concentrate reflecting over 50% recovery to the concentrate
from a sample grading 1.03% Li(2) O on first pass test work is
simply mouth watering. Gravity Concentration, in this case,
otherwise referred to as dense media separation, is a standard, low
cost, simple process with a small, relatively non-invasive foot
print.
"It is the kind of process operation that is quick to design and
install, and yet can deliver very attractive economic returns. We
are therefore highly encouraged, and when the next phase of
drilling at San Domingo is complete and sufficient sample material
is available, we will revert quickly to SGS with a more detailed
test work and study programme to further the above objective."
For further information please visit the Company's website:
www.braddaheadltd.com
Qualified Person (BHL)
Joey Wilkins, B.Sc., P.Geo., is Head of North America at BHL and
the Qualified Person who reviewed and approved the technical
disclosures in this news release. Mr. Wilkins is a graduate of the
University of Arizona with a B.Sc. in Geology with more than 37
years of experience in mineral exploration and is a qualified
person under the AIM Rules and a Qualified Person as defined under
NI-43-101. Mr. Wilkins consents to the inclusion of the technical
information in this release and context in which it appears.
Independent Qualified Person (SGS)
The technical content relating to metallurgical testing
disclosed in this document was reviewed and approved by Curtis
Mohns, P.Eng., Senior Metallurgist at SGS Canada. Mr. Mohns has an
M.Sc. in Mineral Processing Engineering and 29 years of related
professional experience. Mr. Mohns is a Qualified Person as defined
under NI 43-101.
THIS ANNOUNCEMENT CONTAINS INSIDE INFORMATION FOR THE PURPOSES
OF THE MARKET ABUSE REGULATION (EU No. 596/2014) AS IT FORMS PART
OF UK DOMESTIC LAW BY VIRTUE OF THE EUROPEAN UNION (WITHDRAWAL) ACT
2018. UPON THE PUBLICATION OF THIS ANNOUNCEMENT VIA A REGULATORY
INFORMATION SERVICE, THIS INSIDE INFORMATION IS NOW CONSIDERED TO
BE IN THE PUBLIC DOMAIN AND SUCH PERSONS SHALL THEREFORE CEASE TO
BE IN POSSESSION OF INSIDE INFORMATION.
S
Contact:
Bradda Head Lithium Limited +44 (0) 1624 639 396
Ian Stalker, Executive Chairman
Denham Eke, Finance Director
Beaumont Cornish (Nomad)
James Biddle/Roland Cornish +44 20 7628 3396
Panmure Gordon (Joint Broker) +44 20 7886 2500
John Prior / Hugh Rich
Shard Capital (Joint Broker) +44 207 186 9927
Damon Heath / Isabella Pierre
Red Cloud (North American Broker) +1 416 803 3562
Joe Fars
Tavistock (Financial PR) + 44 20 7920 3150
Nick Elwes / Adam Baynes braddahead@tavistock.co.uk
About Bradda Head Lithium Ltd.
Bradda Head Lithium Ltd. is a North America-focused lithium
development group. The Company currently has interests in a variety
of projects, the most advanced of which are in Central and Western
Arizona: The Basin Project (Basin East Project, and the Basin West
Project) and the Wikieup Project.
The Basin East Project has an Indicated Mineral Resource of 17
Mt at an average grade of 940 ppm Li and 3.4% K for a total of 85
kt Lithium Carbonate Equivalent ("LCE") and an Inferred Mineral
Resource of 210 Mt at an average grade of 900 ppm Li and 2.8% K
(potassium) for a total of 1.0 Mt LCE. In the rest of the Basin
Project, SRK has determined an Exploration Target of 250 to 830 Mt
of material grading between 750 to 900 ppm Li, which is equivalent
to a range of between 1 to 4 Mt contained LCE. The Group intends to
continue to develop its three phase one projects in Arizona, whilst
endeavouring to unlock value at its other prospective pegmatite and
brine assets in Arizona, Nevada, and Pennsylvania. All of Bradda
Head's licences are held on a 100% equity basis and are in close
proximity to the required infrastructure. Bradda Head is quoted on
the AIM of the London Stock Exchange with the ticker of BHL, on the
TSX Venture Exchange with a ticker of BHLI, and on the US OTCQB
market with a ticker of BHLIF.
Technical Glossary
Li(2) O Lithium Oxide
pegmatite A pegmatite is an igneous rock showing
a very coarse texture, with large interlocking
crystals usually greater in size than 1
cm (0.4 in) and sometimes greater than
1 meter (3 ft). Most pegmatites are composed
of quartz, feldspar, and mica, having a
similar silicic composition to granite.
However, rarer intermediate composition
and mafic pegmatites are known.
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Spodumene Spodumene is a pyroxene mineral consisting
of lithium aluminium inosilicate, LiAl(SiO(3)
)(2) , and is a source of lithium. Spodumene
contains 3.73% lithium.
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Lepidolite Lepidolite is a lilac-gray or rose-colored
member of the mica group of minerals with
chemical formula K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2.[2][3]
It is the most abundant lithium-bearing
mineral[4] and is a secondary source of
this metal. It is the major source of the
alkali metal rubidium. Lepidolite contains
3.58% lithium.
--------------------------------------------------------
The formula to convert lithium in parts per million (PPM) to
lithium oxide is to multiply Li ppm times 2.1527, then is reported
in percent.
Kt Thousand tonnes
Ppm Parts per million
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Exploration An estimate of the exploration potential of a mineral
Target deposit in a defined geological setting where the
statement or estimate, quoted as a range of tonnes
and a range of grade (or quality), relates to mineralisation
for which there has been insufficient exploration
to estimate a Mineral Resource.
-------------------------------------------------------------
Inferred Mineral That part of a Mineral Resource for which quantity
Resource and grade (or quality) are estimated on the basis
of limited geological evidence and sampling. Geological
evidence is sufficient to imply but not verify geological
grade (or quality) continuity. It is based on exploration,
sampling and testing information gathered through
appropriate techniques from locations such as outcrops,
trenches, pits, workings and drill holes. An Inferred
Mineral Resource has a lower level of confidence
than that applying to an Indicated Mineral Resource
and must not be converted to an Ore Reserve. It is
reasonably expected that the majority of Inferred
Mineral Resources could be upgraded to Indicated
Mineral Resources with continued exploration.
-------------------------------------------------------------
Indicated Mineral That part of a Mineral Resource for which quantity,
Resource grade (or quality), densities, shape and physical
characteristics are estimated with sufficient confidence
to allow the application of Modifying Factors in
sufficient detail to support mine planning and evaluation
of the economic viability of the deposit. Geological
evidence is derived from adequately detailed and
reliable exploration, sampling and testing gathered
through appropriate techniques from locations such
as outcrops, trenches, pits, workings and drill holes,
and is sufficient to assume geological and grade
(or quality) continuity between points of observation
where data and samples are gathered.
-------------------------------------------------------------
Forward-Looking Statements
Neither TSX Venture Exchange nor its Regulation Services
Provider (as that term is defined in policies of the TSX Venture
Exchange) accepts responsibility for the adequacy or accuracy of
this release. This News Release includes certain "forward-looking
statements" which are not comprised of historical facts.
Forward-looking statements include estimates and statements that
describe the Company's future plans, objectives or goals, including
words to the effect that the Company or management expects a stated
condition or result to occur. Forward-looking statements may be
identified by such terms as "believes", "anticipates", "intends
to", "expects", "estimates", "may", "could", "would", "will", or
"plan". Since forward-looking statements are based on assumptions
and address future events and conditions, by their very nature they
involve inherent risks and uncertainties. Although these statements
are based on information currently available to the Company, the
Company provides no assurance that actual results will meet
management's expectations. Risks, uncertainties and other factors
involved with forward-looking information could cause actual
events, results, performance, prospects and opportunities to differ
materially from those expressed or implied by such forward-looking
information. Forward looking information in this news release
includes, but is not limited to, following: The Company's
objectives, goals or future plans. Factors that could cause actual
results to differ materially from such forward-looking information
include, but are not limited to: failure to identify mineral
resources; failure to convert estimated mineral resources to
reserves; delays in obtaining or failures to obtain required
regulatory, governmental, environmental or other project approvals;
political risks; future operating and capital costs, timelines,
permit timelines, the market and future price of and demand for
lithium, and the ongoing ability to work cooperatively with
stakeholders, including the local levels of government;
uncertainties relating to the availability and costs of financing
needed in the future; changes in equity markets, inflation, changes
in exchange rates, fluctuations in commodity prices; delays in the
development of projects, capital and operating costs varying
significantly from estimates; an inability to predict and
counteract the effects of COVID-19 on the business of the Company,
including but not limited to the effects of COVID-19 on the price
of commodities, capital market conditions, restriction on labour
and international travel and supply chains; and the other risks
involved in the mineral exploration and development industry, and
those risks set out in the Company's public documents filed on
SEDARplus. Although the Company believes that the assumptions and
factors used in preparing the forward-looking information in this
news release are reasonable, undue reliance should not be placed on
such information, which only applies as of the date of this news
release, and no assurance can be given that such events will occur
in the disclosed time frames or at all. The Company disclaims any
intention or obligation to update or revise any forward-looking
information, whether as a result of new information, future events
or otherwise, other than as required by law.
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