Piedmont Announces Positive Initial Metallurgical Results and Sets Development Timeline
(firmenpresse) -
PIEDMONT ANNOUNCES POSITIVE INITIAL METALLURGICAL RESULTS AND SETS DEVELOPMENT TIMELINE
- Piedmont has established a large land position in the historic lithium region of North Carolina, USA
- Aggressive drilling continues to define high grade mineralisation supporting the completion of a maiden Mineral Resource by the end of Q2 2018
- Piedmont has commenced an integrated Scoping Study with completion expected in Q3 2018
- Initial spodumene flotation test work indicates spodumene concentrate grades exceeding 6.0% Li2O and less than 1.0% Fe2O3
- Baseline permitting work is underway and permit applications are on track for submittal in Q4 2018
- The Scoping Study will highlight the positive economic implications of Piedmonts unique location, which are evident in benchmarking key capital and operating cost factors vs. select other hard rock lithium regions
Piedmont Lithium Limited (Piedmont or Company) is pleased to provide an update on the development of the Companys 100% owned Piedmont Lithium Project (Project) in the Carolina Tin-Spodumene Belt (TSB) in North Carolina, United States. The Company remains on schedule to release a maiden Mineral Resource estimate in accordance with the JORC Code by the end of the 2nd Quarter 2018 and the integrated Scoping Study shortly thereafter.
Keith D. Phillips, President and Chief Executive Officer, said, The progress made over the past several months with land acquisition, drilling and metallurgical test work reinforces our view that the Piedmont Lithium Project will develop into a world class, low cost, integrated lithium operation, as formerly existed in North Carolina. The Company aims to develop the project on a phased approach using conventional technology, much of which was initially developed in our home region.
For further information, contact:
Keith D. Phillips ---
President & CEO ---
T: +1 973 809 0505 ---
E: kphillips(at)piedmontlithium.com -
Anastasios (Taso) Arima
Executive Director
T: +1 347 899 1522
E: tarima(at)piedmontlithium.com
Land Consolidation Strategy
Piedmont maintains an aggressive land acquisition strategy to consolidate properties within the TSB, one of the worlds most historic and significant lithium regions. Throughout 2017 and 2018 the Company significantly increased land holdings within the TSB, adding areas with high mineralization potential as well as sites that are ideal for concentrator and other supporting infrastructure.
Piedmonts current land package comprises 1,199 acres. Table 1 shows the success of the Companys land consolidation program over time.
Table 1: Piedmonts Increased Land Position over Time
Date Land Addition Cumulative Land
(acres) Position
(acres)
14 September 2017 147 715
15 November 2017 188 903
1 February 2018 189 1,092
3 March 2018 107 1,199
Total 1,199
While the current land position is sufficient to support a world-class operation, Piedmont management believes that there will be growing demand for US-sourced lithium chemicals, and an increased TSB land position will be an important strategic asset. The Company is in discussions with many land owners in the region and is optimistic that its land position will grow considerably, potentially enabling enhancements to throughput and/or project life.
Drilling and Resource Geology
To support Piedmonts anticipated maiden Mineral Resource, the Company is advancing a 20,000-meter drilling campaign, of which approximately 13,000 meters is dedicated to infill drilling and 7,000 meters is focused on exploration.
Table 2: Phase 3 Drilling Campaign Progress as of end of Q1
2018
Drillhole Type Budget Drill Drillholes CompActual Drill
Length lete (31 March Length
(m) 2018) Completed
(m)
Infill Drilling13,000 73 12,658
Exploratory 7,000 3 446
Drilling
Total Drilling 20,000 76 13,104
The Company remains on schedule to release its maiden Mineral Resource estimate by the end of the 2nd Quarter 2018.
Scoping Study
In January 2018, Piedmont appointed Primero Group to lead an integrated Scoping Study including mining, concentrator, and conversion facility. Primero Group is an Australian headquartered engineering and operations business with extensive experience in the hard rock lithium sector. The Scoping Study is ongoing with the current focus on concentrate metallurgical test work and conceptual plant design.
Concentrate Metallurgical Test Work Program
Metallurgical test work supporting concentrator design is in progress with North Carolina State Universitys Minerals Research Laboratory (MRL), a leading global industrial minerals laboratory based in Asheville, North Carolina. Founded in 1946, MRL actively supports mining and minerals processing operations within North Carolina and provided much of the research which supported the spodumene concentrator process flow designs at the historic mines in the in TSB. Piedmont has been working with MRL since mid-2017.
MRL is currently undertaking the following bench-scale test work programs for Piedmont:
- Spodumene flotation optimization;
- Heavy liquids separation for Dense Medium Separation (DMS) pre-concentration evaluation;
- Iron removal optimization; and
- Secondary product test work.
Spodumene flotation optimization test work including iron removal optimization is expected to be completed by May 2018. MRL has demonstrated the ability of Piedmont ore to produce quality spodumene concentrate on a range of grind sizes using a variety of collectors. MRL has continuously refined our test work and has most recently delivered the following bench level test results.
Table 3 - Preliminary Spodumene Flotation
Bench Test
Results
Parameter Bench Flotation Test
s
with Magnetics
Removal
Head Grade (% Li2O) 1.19-1.27
Final Concentrate Grade 6.28 - 6.35
(%
Li
2O)
Final Concentrate Iron 0.66 - 0.69
Content (%
Fe
2O3)
Scavenger Tailings Grade 0.04
(%
Li
2O)
Heavy Liquids Separation test work will determine the potential for beneficiation to a pre-concentrate or final concentrate using DMS techniques. Heavy liquids results are expected in May 2018.
Following the completion of bench-scale test work, MRL will undertake pilot level tests including comminution, DMS, and flotation circuitry on a composite sample from the Project. This test work program is expected to be completed in the 4th Quarter of 2018.
Conversion Plant Study
The Conversion Plant study will evaluate various phased approaches to produce technical and battery grade lithium carbonate and hydroxide products. Piedmonts objective is to utilize proven technologies to maximize production of battery-grade lithium hydroxide while providing the flexibility to produce other products in response to market requirements.
Conversion Metallurgical Test Work Program
The Conversion Plant test work program at the bench scale level has been developed in collaboration with Primero Group. A partner research laboratory will be selected in the 2nd Quarter 2018 and conversion test work will commence in the 3rd Quarter 2018 following production of an initial concentrate sample from the concentrator pilot plant.
The Company will examine the possibility of spodumene conversion to both battery grade lithium hydroxide and battery grade lithium carbonate. Bench scale test work completion is scheduled for the end of the 3rd Quarter 2018.
Following completion of the bench scale test work program the Company will determine whether the full conversion test work program will be OEM technology driven or undertaken in conjunction with a commercial research laboratory.
Permitting
Piedmont appointed global engineering firm HDR Engineering in December 2017 to undertake a critical issues analysis of the permitting aspects of the Project. This report provided Piedmont with a clear roadmap of the background studies, federal, state, and local permits required, and regulating offices that will have jurisdiction over the environmental and permit aspects of the Project.
Based on HDRs and other consultants and operators experience in permitting similar projects, Piedmont has established a general timeline to submit major permit applications by the end of 2018 with a target permit approval date prior to the end of 2019.
Table 4: Estimated Permitting Timeline for Piedmont
Lithium's Mine /
Concentrator
2018 2019
Task JFMAMJJASONDJFMAMJJASOND
Critical Issues
Analysis
Stream and Wetland
Delineation
Threatened and
Endangered Species
Survey
Baseline Surface
Water
Sampling
Groundwater Sampling
and
Analysis
Mine Permitting Design
Permit Application
Preparation
Permit Review and
Approval
Process
It is the Companys stated objective to minimize environmental impact during project development and to provide mitigation efforts such that the net effect of development and mining activities is a gain in overall environmental quality and beneficial use for the residents in the district.
Project Cost Benchmarking
Piedmonts North Carolina location provides advantages relative to certain other lithium-producing regions. North Carolina offers a more stable legal and business environment than is the case with most South American brine operations, with low taxes and no state mining royalties. Relative to many prospective regions for spodumene production, North Carolina offers proximity to extensive infrastructure, skilled labor, and low input costs for power, gas, and other utilities.
Capital and operating cost advantages will be detailed as part of the upcoming Scoping Study, but relative comparisons are summarized in the table below.
http://www.irw-press.at/prcom/images/messages/2018/43006/180409 - Piedmont Project Update_Finalprcom.001.jpeg
Implementation Schedule
The following schedule is illustrative and subject to revision upon the completion of our maiden JORC Resource and Scoping Study, and will be impacted by the results of discussions with potential strategic and product off-take partners.
Table 6 Piedmont Lithium Project Schedule
Mine Concentrator 2018 2019 2020
Development
Task Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4
Permitting
Metallurgical Testwork
Scoping
Pre-Feasibility
Feasibility
Construction and
Commissioning
Conversion Plant 2018 2019 2020
Development
Task Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4
Land Acquisition
Permitting
Metallurgical Testwork
Scoping
Pre-Feasibility
Feasibility
Further development by the Company is required through the course of Scoping Study to refine the timelines for the Conversion Plant using conventional conversion techniques.
About Piedmont Lithium
Piedmont Lithium Limited (ASX: PLL; OTC-Nasdaq Intl: PLLLY) holds a 100% interest in the Piedmont Lithium Project (Project) located within the world-class Carolina Tin-Spodumene Belt (TSB) and along trend to the Hallman Beam and Kings Mountain mines, historically providing most of the western worlds lithium between the 1950s and the 1990s. The TSB has been described as one of the largest lithium provinces in the world and is located approximately 25 miles west of Charlotte, North Carolina. It is a premier location to be developing and integrated lithium business based on its favourable geology, proven metallurgy and easy access to infrastructure, power, R&D centres for lithium and battery storage, major high-tech population centres and downstream lithium processing facilities.
http://www.irw-press.at/prcom/images/messages/2018/43006/180409 - Piedmont Project Update_Finalprcom.002.jpeg
Piedmont Lithium Location and Bessemer City Lithium Processing Plant (FMC, Top Right) and Kings Mountain Lithium Processing Facility (Albemarle, Bottom Right)
The Project was originally explored by Lithium Corporation of America which eventually was acquired by FMC Corporation (FMC). FMC and Albemarle Corporation (Albemarle) both historically mined the lithium bearing spodumene pegmatites within the TSB and developed and continue to operate the two world-class lithium processing facilities in the region which were the first modern spodumene processing facilities in the western world. The Company is in a unique position to leverage its position as a first mover in restarting exploration in this historic lithium producing region with the aim of developing a strategic, U.S. domestic source of lithium to supply the increasing electric vehicle and battery storage markets.
Piedmont, through its 100% owned U.S. subsidiary, Piedmont Lithium Inc., has entered into exclusive option agreements and land acquisition agreements with local landowners, which upon exercise, allow the Company to purchase (or in some cases long-term lease) approximately 1,200 acres of surface property and the associated mineral rights.
Forward Looking Statements
This announcement may include forward-looking statements. These forward-looking statements are based on Piedmonts expectations and beliefs concerning future events. Forward looking statements are necessarily subject to risks, uncertainties and other factors, many of which are outside the control of Piedmont, which could cause actual results to differ materially from such statements. Piedmont makes no undertaking to subsequently update or revise the forward-looking statements made in this announcement, to reflect the circumstances or events after the date of that announcement.
Competent Persons Statement
The information in this announcement that relates to Exploration Results is based on, and fairly represents, information compiled or reviewed by Mr. Lamont Leatherman, a Competent Person who is a Registered Member of the Society for Mining, Metallurgy and Exploration, a Recognized Professional Organization (RPO). Mr. Leatherman is a consultant to the Company. Mr. Leatherman has sufficient experience that is relevant to the style of mineralization 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. Leatherman consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.
Appendix 1: JORC Table 1 Checklist of Assessment and Reporting Criteria
Section 1 Sampling Techniques and Data
CriteriJORC Code Commentary
a explanation
Samplin> Nature and Metallurgical Sample: A composite
g quality of sample
techni sampling (e.g. cut
ques channels, random totalling 79 kg (F1) was collected
chips, or specific from
specialised exploration
industry standard holes 29, 30, and 31 of
measurement tools Piedmonts Phase 1 Drilling
appropriate to the Campaign. Exploration results
minerals under were previously announced on
investigation,
such as downhole 23 May 2017. Specifically, the
gamma sondes, or remaining ½ NQ core
handheld XRF
instruments, from select mineralized zones was
etc.). These the material
examples should composited
not be taken as . The original exploration
limiting the broad samples averaged 1 m in length
meaning of but were designed to break on
sampling. lithologic and
> Include reference textural boundaries.
to measures taken Bench scale metallurgical tests
to ensure sample reported in this release were
conducted on subsamples of this
representivity and F1 composite
the appropriate sample.
calibration of any
measurement tools The samples were transported to
or systems North Carolina State
used.
Universitys Minerals Research
> Aspects of the Laboratory
determination of (MRL) in August 2017 by Piedmont
mineralisation Lithium
that are Material Geologist.
to the Public
Report. In cases
where industry
standard work has
been done this
would be
relatively simple
(e.g. reverse
circulation
drilling was used
to obtain 1 m
samples from which
3 kg was
pulverised to
produce a 30 g
charge for fire
assay). In other
cases, more
explanation may be
required, such as
where there is
coarse gold that
has inherent
sampling problems.
Unusual
commodities or
mineralisation
types (e.g.
submarine nodules)
may warrant
disclosure of
detailed
information.
Drillin> Drill type (e.g. From exploration results
g core, reverse previously announced on
techni circulation,
ques open-hole hammer, 23 May 2017.
rotary air blast,
auger, Bangka,
sonic, etc.) and
details (e.g. core
diameter, 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.).
Drill > Method of From exploration results
sample recording and previously announced on
recove assessing core and
ry chip sample 23 May 2017.
recoveries and
results
assessed.
> Measures taken to
maximise sample
recovery and
ensure
representative
nature of the
samples.
> Whether a
relationship
exists between
sample recovery
and grade and
whether sample
bias may have
occurred due to
preferential
loss/gain of
fine/coarse
material.
Logging> Whether core and From exploration results
chip samples have previously announced on
been geologically
and 23 May 2017.
geotechnically logge
d to a level of
detail to support
appropriate
Mineral Resource
estimation, mining
studies and
metallurgical
studies.
> Whether logging
is qualitative or
quantitative in
nature. Core (or
costean, channel,
etc.)
photography.
> The total length
and percentage of
the relevant
intersections
logged.
Sub-sam> If core, whether Exploration Results - From explorat
pling cut or sawn and ion results previously announced
techni whether quarter, on
ques half or all core
and taken. 23 May 2017.
sample Metallurgical Sample: The 79-kg
prepar> If non-core, F1 sample which consisted of NQ
ation whether riffled, half-core was crushed to -6.35 mm
tube sampled, (-1/4 inch) and split into 1-kg
rotary split, etc. representative subsamples.
and whether
sampled wet or For each flotation test, a 1-kg sub
dry. sample
was ground using 4-stage grinding
> For all sample in a laboratory rod mill to a
types, the nature, D
quality and 98 of 250 micron. The sample was
appropriateness of then
the sample deslimed at 20 micron, attrition s
preparation crubbed, and subjected to a
technique. second-stage
> Quality control desliming at 20 micron.
procedures adopted
for all
sub-sampling
stages to maximise
representivity of
samples.
> Measures taken to
ensure that the
sampling is
representative of
the in situ
material
collected,
including for
instance results
for field
duplicate/second-ha
lf
sampling.
> Whether sample
sizes are
appropriate to the
grain size of the
material being
sampled.
Quality> The nature, The focus of the bench-scale
of quality and test-work program undertaken by
assay appropriateness of NC State
data the assaying and
and laboratory Universitys Minerals Research Labo
labora procedures used ratory
tory and whether the (MRL)
tests technique is has been to optimize bench-scale
considered partial flotation for the maximum grade
or and recovery of
total.
spodumene concentrate and minimize
> For geophysical iron content in the final
tools,
spectrometers, spodumene concentrate product.
handheld XRF NC State MRL have performed more
instruments, etc., than
the parameters 45
used in bench-scale tests to date which
determining the included
analysis including vari
instrument make ation of test conditions including:
and model, reading - Optimization of D98 feed to
times, flotation ranging from
calibrations
factors applied 200 to 600 micron
and their - Two bottom sizes of 38 and 20
derivation, micron for
etc. the
flotation feed
> Nature of quality - Variation to pH between 7.0 and
control procedures 9.0
adopted (e.g.
standards, blanks, - Multi-stage grinding for the
duplicates, minimization of fines
external generation
laboratory checks)
and whether - Change to frother and collector
acceptable levels - Variation to the number and
of accuracy (i.e. intensity of iron removal
lack of bias) and stages
precision have
been Continued bench-scale optimization
established. tests are planned and underway
for
further
improvement and repeatability of
results.
Bench-scale spodumene flotation
tests were performed
as follows:
For each flotation test, a 1-kg
subsample was ground using
4-stage grinding in a laboratory
rod mill to a
D
98 of 250 micron. The sample was
then
deslimed at 20 micron, attrition
scrubbed, and subjected to a
second-stage
desliming at 20 micron.
The flotation of spodumene was a
direct flotation meaning
spodumene was floated from the
gangue minerals. First,
spodumene was floated in the
rougher flotation stage. Then,
the
spodumene concentrate was cleaned
in three steps
(1
st, 2nd and 3rd cleaner stages) to
obtain the highest achievable
grade for
Li
2O content in the spodumene concent
rate. The tailings of the rougher
flotation was further processed
in the scavenger flotation stage
to recover any
spodumene left in the tailings. In
each flotation
stage
, the concentrate was floated to
exhaustion.
Flotation was optimized at pH =
7.0 using AERO 727 as
collector.
The iron content of the final spodu
mene
concentrate obtained from the
flotation stages was
reduced to the lowest achievable
level
through 3-stage Wet High Intensity
Magnetic
Separation (WHIMS) tests at 20,000
Gauss.
All streams from the flotation and
iron removal bench-scale tests
were
collected, dried, weighed, and ship
ped to Hazen Research, Inc. in
Golden,
Colorado.
Received samples were pulverized
to
100% passing 75 micron and
subjected to hydrofluoric acid
exposure prior to 4-acid
dissolution
to ensure complete dissolution
and liberation of lithium. The
resulting solution was analyzed
using flame atomic absorption
(AA)
spectroscopy.
Repeat sample analyses were perform
ed
for every 10 samples with a
certified reference material
analyzed every 20
samples.
Verific> The verification For exploration assays and results
ation of significant - from exploration results
of intersections by previously published
sampli either independent
ng and or alternative
assayi company Metallurgical Sample: Multiple
ng personnel. representatives of Piedmont
Lithium, Inc. have inspected
> The use of
twinned the test-work.
holes. Dr. Hamid Akbari (NC State Mineral
Research Laboratory) directed the
> Documentation of
primary data, data testwork program. Dr. Akbari
entry procedures, reviewed and provided comments on
data verification, how to improve the analytical
data storage methods used by Hazen Research
(physical and and these have been
electronic) addressed.
protocols.
No adjustments or calibrations
> Discuss any were made to the primary
adjustment to analytical
assay
data. data reported for metallurgical tes
twork
results for the purpose of reporti
ng assay grades or mineralized
intervals
Locatio> Accuracy and From exploration results
n of quality of surveys previously announced on
data used to locate
points drill holes 23 May 2017.
(collar and
down-hole
surveys),
trenches, mine
workings and other
locations used in
Mineral Resource
estimation.
> Specification of
the grid system
used.
> Quality and
adequacy of
topographic
control.
Data > Data spacing for From exploration results
spacin reporting of previously announced on
g and Exploration
distri Results. 23 May 2017.
bution
> Whether the data
spacing and
distribution is
sufficient to
establish the
degree of
geological and
grade continuity
appropriate for
the Mineral
Resource and Ore
Reserve estimation
procedure(s) and
classifications
applied.
> Whether sample
compositing has
been
applied.
Orienta> Whether the From exploration results
tion orientation of previously announced on
of sampling achieves
data unbiased sampling 23 May 2017.
in of possible Metallurgical samples: The F1
relati structures and the sample contained a range of
on to extent to which textures, grades and grain sizes
geolog this is known, available within the mineralized
ical considering the zones/pegmatites.
struct deposit
ure type.
> If the
relationship
between the
drilling
orientation and
the orientation of
key mineralised
structures is
considered to have
introduced a
sampling bias,
this should be
assessed and
reported if
material.
Sample > The measures From exploration results
securi taken to ensure previously announced on
ty sample
security. 23 May 2017.
Metallurgical samples - were
transported to North Carolina
State
Universitys Minerals Research
Laboratory in August 2017 by
Piedmont Lithium
Geologist.
Audits > The results of From exploration results
or any audits or previously announced on
review reviews of
s sampling 23 May 2017.
techniques and Dr. Hamid Akbari (NC State Mineral
data. Research Laboratory) directed the
testwork program. Dr. Akbari
reviewed and provided comments on
how to improve the analytical
methods used by Hazen Research
and these have been
addressed.
Piedmont representatives have
visited the NCMRL and reviewed
all
results.
Section 2 Reporting of Exploration Results
CriteriJORC Code Commentary
a explanation
Mineral> Type, reference Piedmont, through its 100% owned
teneme name/number, subsidiary, Piedmont Lithium,
nt and location and Inc., has entered into exclusive
land ownership option agreements with local
tenure including landowners, which upon exercise,
status agreements or allows the Company to purchase
material issues (or long term lease)
with third parties approximately 1200 acres of
such as joint surface property and the
ventures, associated mineral rights from
partnerships, the local landowners.
overriding
royalties, native
title interests, There are no known historical
historical sites, sites, wilderness or national
wilderness or parks located within the Project
national park and area and there are no known
environmental impediments to obtaining a
settings. licence to operate in this
area.
> The security of
the tenure held at
the time of
reporting along
with any known
impediments to
obtaining a
licence to operate
in the
area.
Explora> Acknowledgment The Project is focused over an
tion and appraisal of area that has been explored for
done exploration by lithium dating back to the 1950s
by other where it was originally explored
other parties. by Lithium Corporation of America
partie which was subsequently acquired
s by FMC Corporation. Most
recently, North Arrow explored
the Project in 2009 and 2010.
North Arrow conducted surface
sampling, field mapping, a ground
magnetic survey and two diamond
drilling programs for a total of
19 holes. Piedmont Lithium, Inc.
has obtained North Arrows
exploration
data.
Geology> Deposit type, Spodumene pegmatites, located near
geological setting the
and style of
mineralisation. litho tectonic boundary between
the inner Piedmont and Kings
Mountain belt. The
mineralization is thought to be
concurrent and cross-cutting dike
swarms extending from the
Cherryville granite, as the dikes
progressed further from their
sources, they became increasingly
enriched in incompatible elements
such as Li, tin (Sn). The dikes
are considered to be
unzoned.
Drill > A summary of all Details of all drill holes to date
hole information have been provided in results
Inform material to the previously announced
ation understanding of on:
the exploration
results including - 23 May 2017
a tabulation of - 26 September 2017
the following - 1 November 2017
information for - 28 November 2017
all Material drill - 3 March 2018
holes: - 3 April 2018
> easting and
northing of the
drill hole
collar
> elevation or RL
(Reduced Level -
elevation above
sea level in
metres) of the
drill hole
collar
> dip and azimuth
of the
hole
> down hole 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.
Data > In reporting Exploration Results - as
aggreg Exploration previously announced
ation Results, weighting on:
method averaging
s techniques, - 23 May 2017
maximum and/or - 26 September 2017
minimum grade - 1 November 2017
truncations (e.g. - 28 November 2017
cutting of high - 3 March 2018
grades) and - 3 April 2018
cut-off grades are Metallurgical Sample:
usually Material A 79 kg sample (F1) of NQ
and should be half-core was selected from
stated. mineralized intervals from holes
29, 30, and 31 of Piedmonts
> Where aggregate Phase 1 Drilling Campaign.
intercepts
incorporate short
lengths of high Li% was converted to Li2O% by
grade results and multiplying Li% by
longer lengths of 2.153.
low grade results,
the procedure used Fe% was converted to Fe2O3% by
for such multiplying Fe% by
aggregation should
be stated and some 1.43
typical examples
of such
aggregations
should be shown in
detail.
> The assumptions
used for any
reporting of metal
equivalent values
should be clearly
stated.
Relatio> These Details of all drill holes to date
nship relationships are have been provided in results
betwee particularly previously announced
n important in the on:
minera reporting of
lisatio Exploration - 23 May 2017
n Results. - 26 September 2017
widths - 1 November 2017
and > If the geometry - 28 November 2017
interc of the - 3 March 2018
ept mineralisation - 3 April 2018
length with respect to
s the drill hole
angle is known,
its nature should
be
reported.
> If it is not
known and only the
down hole lengths
are reported,
there should be a
clear statement to
this effect (e.g.
down hole length,
true width not
known).
Diagram> Appropriate maps No significant discovery is being
s and sections (with reported at this
scales) and time.
tabulations of
intercepts should
be included for
any significant
discovery being
reported These
should include,
but not be limited
to a plan view of
drill hole collar
locations and
appropriate
sectional
views.
Balance> Where All of the relevant exploration
d comprehensive data for the Exploration Results
report reporting of all
ing Exploration have been previously provided in
Results is not announcement
practicable, on:
representative
reporting of both - 23 May 2017
low and high - 26 September 2017
grades and/or - 1 November 2017
widths should be - 28 November 2017
practiced to avoid - 3 March 2018
misleading - 3 April 2018
reporting of Metallurgical Sample:
Exploration Data reported represents the range
Results. of
most recent optimized results
which have been subject to
repeat
tests only for sample F1. These
tests were performed on the basis
of the following test conditions:
- D98 of 250 micron achieved by
4-stage
milling
- Desliming at 20 micron
- Attrition scrubbing and desliming
at 20
micron
- Application of AERO 727 Collector
- pH of 7.0
- 3-stage magnetic separation of sp
odumene
concentrate at 20,000 Gauss
Other tests conditions which
preceded the above conditions
which may have produced different
results
but have not been subjected to
repeat
testwork or did not include iron
removal on
spodumene concentrate have not
been
included
.
Other > Other exploration All of the relevant exploration
substa data, if data for the Exploration Results
ntive meaningful and have been previously provided in
explor material, should announcement
ation be reported on:
data including (but not
limited to): - 23 May 2017
geological - 26 September 2017
observations; - 1 November 2017
geophysical survey - 28 November 2017
results; - 3 March 2018
geochemical survey - 3 April 2018
results; bulk
samples - size and
method of
treatment;
metallurgical test
results; bulk
density,
groundwater,
geotechnical and
rock
characteristics;
potential
deleterious or
contaminating
substances.
Further> The nature and Further bench-scale optimization
work scale of planned work for
further work (e.g.
tests for lateral spodumene and iron grade are
extensions or underway and
depth extensions planned.
or large-scale
step-out Repeat tests of the optimized test
drilling). conditions are underway and
planned for samples B1 and
> Diagrams clearly G1.
highlighting the
areas of possible Heavy liquids separation testwork i
extensions, s underway with NC State
including the main
geological Universitys Minerals Research
interpretations Laboratory.
and future
drilling areas, Pilot test work is planned to
provided this commence in
information is not 2
commercially nd Quarter 2018 based on the
sensitive. optimized bench-scale results.
Pilot
testwork will be undertaken on a co
mposited sample of intercepts from
Piedmonts Phase II drilling
program.
Leseranfragen:
" alt="Jaxon Issues Letter to Shareholders 
Datum: 09.04.2018 - 13:10 Uhr
Sprache: Deutsch
News-ID 574198
Anzahl Zeichen: 51285
contact information:
Town:
Wien
Kategorie:
Business News
Diese Pressemitteilung wurde bisher 291 mal aufgerufen.
Die Pressemitteilung mit dem Titel:
"Piedmont Announces Positive Initial Metallurgical Results and Sets Development Timeline
"
steht unter der journalistisch-redaktionellen Verantwortung von
Piedmont Lithium Limited (Nachricht senden)
Beachten Sie bitte die weiteren Informationen zum Haftungsauschluß (gemäß TMG - TeleMedianGesetz) und dem Datenschutz (gemäß der DSGVO).
