TIDMPREM
RNS Number : 5158Y
Premier African Minerals Limited
07 September 2022
07 September 2022
Premier African Minerals Limited
Zulu Assay Results and Pilot Plant Update
Premier African Minerals Limited ("Premier" or the "Company"),
is pleased to report on assay results at Premier's Zulu Lithium and
Tantalum Project ("Zulu"). These results continue to support our
decision to proceed with the pilot plant and at the same time will
be incorporated into the revised Mineral Resource update required
to support the DFS.
Highlights:
-- Multiple thick high-grade
zones intersected
George Roach, CEO commented , "I am pleased to share further
assay results from Zulu. It is well worth noting ZDD114 in
particular. These very pleasing results are further confirmation of
our decision to go ahead with the construction of the pilot plant
at Zulu. As mentioned in the RNS dated 26 August 2022, work is
progressing well with the installation of the pilot plant, and we
remain on target for hot commissioning in Q1 of 2023."
Drill Holes: Lithium & Tantalum Results
The table below sets out the composites determined, as per the
outlined compositing routine in the text below, from analyses
received from the independent external laboratory analyses for
holes ZDD104, ZDD111, ZDD112 & ZDD114.
Table 1 -Assay Summary Results
Hole From (m) To Width* Li(2) Ta(2) Rb ppm
(m) (m) O% O(5) ppm
ZDD104 208.24 215.68 7.44 1.04 53 1435
Incl. 209.24 210.24 1.00 2.06 6 1995
Incl. 213.68 214.68 1.00 1.40 55 942
-------- --------- ------- ------- ------ ---------- -------
ZDD104 255.05 257.25 2.20 0.90 91 817
Incl. 255.25 256.25 1.00 1.76 100 1020
-------- --------- ------- ------- ------ ---------- -------
ZDD104 268.30 273.30 5.00 1.79 74 963
Incl 270.30 271.30 1.00 2.01 76 793
-------- --------- ------- ------- ------ ---------- -------
ZDD111 209.32 211.48 2.16 0.96 186 2435
ZDD111 219.68 222.55 2.87 0.95 47 1326
ZDD112 168.80 176.80 8.00 1.37 39 1525
Incl. 169.80 173.80 4.00 1.85 32 1441
Incl. 174.80 175.80 1.00 1.63 38 2485
-------- --------- ------- ------- ------ ---------- -------
ZDD114 111.98 135.70 23.72 1.51 93 2219
Incl. 114.40 115.40 1.00 2.33 82 2875
Incl. 123.40 125.40 2.00 2.07 147 1597
-------- --------- ------- ------- ------ ---------- -------
*Not True Width but lineal width
**0.50% Li(2) O cut-off applied.
The following compositing routine was applied:
-- 0.50% Li(2) O cut-off was applied to the pegmatitic
intersections only.
-- <2m standalone composites at the cut-off grade but with
an overall weighted average grade of >0.5% Li(2) O are
not reported however,
-- Within any composite >2m thickness, high-grade intersections
of 1m are reported; and
-- Within any composite, inclusions of country rock of
<2m thickness are included within the composite provided
the overall grade of the composite is not <0.50% Li(2)
O.
Table 2 - Drilling Progress
A summary of the number of drill holes completed both prior to
and for the ongoing DFS is set out below:
PROGRAMME No of Drill Holes Metres (m)
Completed
RST (1958) 7 903.90
------------------ -----------
ZULU - Initial Exploration 6 2,312.90
------------------ -----------
ZULU - PEA 43 5,809.10
------------------ -----------
ZULU - DFS (completed) 111 25,727.29
------------------ -----------
ZULU - DFS (in progress) See note below
*
------------------ -----------
*Given the number of outstanding analyses as set out in the
table below, a temporary suspension has been imposed on the
Resource drilling. Three drill rigs remain on-site and will
continue Resource drilling in the next 10 days to more targeted
area of the Resource.
Table 3 - Analytical Pipeline
A summary of the status of DFS drill core analysis is set out
below:
DFS - results received to date 3,730
DFS - sample pulps at SGS Randfontein
awaiting analysis 1,256
------
DFS - sample pulps ready to be shipped
to SGS 401
------
DFS - samples being pulped at Antec 209
------
DFS - ongoing sampling of drill cores
at site* 600
------
*Estimate
Quality Assurance/Quality Control (QA/QC)
The drill holes are initially sited using a hand-held GPS
(Global Positioning System device) within the tenement areas.
Accurate coordinates and elevations of drill holes collars are
subsequently derived from a DGPS (Differential Global Position
devices) survey.
Drill cores are geologically logged, intersections of interest
are selected are marked-up with unique sample ID assigned before
splitting and sampling. Cores are cut in half using a core cutter,
individual samples bagged, and sent for analysis.
Alternating Certified Refence Materials (CRM), blank or
duplicate samples are inserted every 10(th) sample into the sample
stream sent to the laboratory to ensure QA/QC compliance. These
QA/QC samples are assessed upon receipt of analyses, checked and,
if acceptable, accepted into the analytical database. Follow-up
with the laboratory is instigated in cases were any QA/QC sample
fails the QA/QC parameters.
Currently, drill core samples are crushed and pulverised at the
Antec Laboratory, Zimbabwe to 85% passing -75 microns. Sample pulps
are inspected for export in Harare by the competent government
authorities and couriered to the SGS Laboratory Services in
Randfontein, South Africa where pulps are fused with sodium
peroxide and analysed by ICP-OES and ICP-MS to report 51-elements.
(SGS code ICP90A50 & IMS90A50).
The Geology of Zulu
The area, located in the Fort Rixon Greenstone Belt, is
underlain by Archaean-aged meta-volcanics and meta-sedimentary
sequences of the Bulawayan Supergroup, with serpentinites and
banded iron formations at the base in the east and metamorphosed
volcano-sedimentary sequences to the west. The greenstone belt is
tear drop shaped measuring 30 km long and 19 km wide near the broad
section at the top. Metamorphism is retrograded to Greenschist
facies.
The Zulu Pegmatite is a LCT (Lithium-Caesium-Tantalum) pegmatite
swarm which intrudes along the contacts between serpentine and
metamorphosed volcano-sedimentary sequences over a strike length of
several kilometres. Outcrop widths vary between 10 and 25 m. The
pegmatite bodies strike N20deg and dip 70deg to 90deg to the
west.
The area was first pegged in 1955 by J.S. Willemse and intensely
explored, under an option, with mapping, trenching and drilling by
Rhodesian Selection Trust Co. Ltd. ("RST") in 1958. In 1961 and
1962 a small quantity of petalite was mined by W. Burchett in
partnership with J.S. Willemse. Premier later acquired the claims
the Zulu in 2013.
The thickest pegmatite, north and south of the Machakwe river,
is rich in spodumene, petalite and lepidolite while the thinner
footwall pegmatites tend to be lower in Li-grade but carry good
tantalum and rubidium grades.
In general, the lithium minerals, occurring in varying
quantities, are coarse grained with associated feldspars and quartz
with only very minor sulphides being observed. In several contact
zones, the lithium-bearing amphibole, holmquistite, has been
observed.
Qualified Person:
Bruce Cumming, geologist with Premier, has reviewed and approved
this release to the extent that reference is made to Zulu. Mr.
Cumming is a SACNASP and GSSA registered geoscientist with 46
years' experience in exploration and project management, in
multicommodity projects throughout Africa.
The information contained within this announcement is deemed by
the Company to constitute inside information as stipulated under
the Market Abuse Regulations (EU) No. 596/2014 as it forms part of
UK Domestic Law by virtue of the European Union (Withdrawal) Act
2018.
The person who arranged the release of this announcement on
behalf of the Company was George Roach.
Forward Looking Statements:
Certain statements in this announcement are or may be deemed to
be forward looking statements. Forward looking statements are
identi ed by their use of terms and phrases such as "believe"
"could" "should" "envisage" "estimate" "intend" "may" "plan" "will"
or the negative of those variations or comparable expressions
including references to assumptions. These forward-looking
statements are not based on historical facts but rather on the
Directors' current expectations and assumptions regarding the
Company's future growth results of operations performance future
capital and other expenditures (including the amount. Nature and
sources of funding thereof) competitive advantages business
prospects and opportunities. Such forward looking statements re ect
the Directors' current beliefs and assumptions and are based on
information currently available to the Directors. A number of
factors could cause actual results to differ materially from the
results discussed in the forward-looking statements including risks
associated with vulnerability to general economic and business
conditions
competition environmental and other regulatory changes actions
by governmental authorities the availability of capital markets
reliance on key personnel uninsured and underinsured losses and
other factors many of which are beyond the control of the Company.
Although any forward-looking statements contained in this
announcement are based upon what the Directors believe to be
reasonable assumptions. The Company cannot assure investors that
actual results will be consistent with such forward looking
statements.
Notes to Editors:
Premier African Minerals Limited (AIM: PREM) is a
multi-commodity mining and natural resource development company
focused on Southern Africa with its RHA Tungsten and Zulu Lithium
projects in Zimbabwe.
The Company has a diverse portfolio of projects, which include
tungsten, rare earth elements, lithium and tantalum in Zimbabwe and
lithium and gold in Mozambique, encompassing brownfield projects
with near-term production potential to grass-roots exploration. The
Company has a ccepted a share offer by Vortex Limited ("Vortex")
for the exchange of Premier's entire 4.8% interest in Circum
Minerals Limited ("Circum"), the owners of the Danakil Potash
Project in Ethiopia, for a 13.1% interest in the enlarged share
capital of Vortex. Vortex has an interest of 36.7% in Circum .
In addition, the Company holds a 19% interest in MN Holdings
Limited, the operator of the Otjozondu Manganese Mining Project in
Namibia.
Enquiries:
George Roach Premier African Minerals Limited Tel: +27 (0) 100 201 281
Michael Cornish / Roland Cornish Beaumont Cornish Limited Tel: +44 (0) 20 7628 3396
(Nominated Adviser)
--------------------------------------- ----------------------------------------
John More/Toby Gibbs Shore Capital Stockbrokers Limited Tel: +44 (0) 20 7408 4090
--------------------------------------- ----------------------------------------
Glossary of Technical Terms:
----------------------------------------------------------------------------------------------------------------------
"amphibole" A class of rock-forming silicate or aluminosilicate minerals typically occurring
as fibrous
or columnar crystals.
-----------------------------------------------------------------------------------
"Banded Iron Formation (BIF)" A sedimentary rock consisting of alternating layers of iron oxides and iron-poor
chert.
-----------------------------------------------------------------------------------
"DFS" Definitive Feasibility Study.
-----------------------------------------------------------------------------------
"Greenschist facies" The Greenschist facies is at low pressure and temperature. The facies is named for
the typical
schistose texture of the rocks and green colour of the minerals chlorite, epidote
and actinolite.
-----------------------------------------------------------------------------------
"feldspar" An aluminosilicate mineral consisting of potassium, sodium, and calcium.
-----------------------------------------------------------------------------------
"Holmquistite" A lithium-bearing amphibole related to hornblende with a formula as
(Na,K,Ca)Li(Mg,Fe)(3)
Al(2) Si(8) O(22) (OH)(2.)
-----------------------------------------------------------------------------------
"ICP-OES" Inductively coupled plasma-optical emission spectroscopy.
-----------------------------------------------------------------------------------
"ICP-MS" Inductively coupled plasma mass spectrometry.
-----------------------------------------------------------------------------------
"Lepidolite" A pink to lavender coloured lithium bearing mineral (KLi 2 Al(Si 4 O 10 )(F,OH) 2
).
-----------------------------------------------------------------------------------
"Li to Li2O" x 2.153.
-----------------------------------------------------------------------------------
"Li" Lithium.
-----------------------------------------------------------------------------------
"Li(2) O" Lithium Oxide (Lithia) - an inorganic lithium compound used to assess lithium
minerals.
-----------------------------------------------------------------------------------
"m" Meters.
-----------------------------------------------------------------------------------
"meta-sediments" Sedimentary rocks that have been metamorphosed.
-----------------------------------------------------------------------------------
"meta-volcanics" Volcanic rocks that have been metamorphosed.
-----------------------------------------------------------------------------------
"Petalite" A white coloured lithium bearing mineral (LiAl(Si 4 O 10 )).
-----------------------------------------------------------------------------------
"ppm" parts per million.
-----------------------------------------------------------------------------------
"Rb" Rubidium.
-----------------------------------------------------------------------------------
"serpentinite" A dark, typically greenish metamorphic rock, consisting of serpentine or related
minerals,
formed when mafic igneous rocks are altered.
-----------------------------------------------------------------------------------
"Spodumene" A white to pink coloured lithium bearing mineral (LiAlSi 2 O 6 ).
-----------------------------------------------------------------------------------
"Ta to Ta2O5" x 1.221.
-----------------------------------------------------------------------------------
"Ta" Tantalum.
-----------------------------------------------------------------------------------
LITHIUM CLASSIFICATION AND CONVERSION FACTORS
Lithium grades are normally presented in percentages or ppm.
Grades of deposits are also expressed as lithium compounds in
percentages, for example as a percent lithium oxide (Li (2) O)
content. The standard conversion factors are set out in the table
below:
Table: Conversion Factors for Lithium Compounds and Minerals
Convert from Convert to Li Convert to
Li (2) O
--------------- ---------- -------------- -----------
Lithium Li 1.000 2.153
Lithium Oxide Li (2) O 0.464 1.000
--------------- ---------- -------------- -----------
Ends
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