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From Apr 2019 to Apr 2024
TIDMWRES
RNS Number : 5318D
W Resources PLC
27 October 2015
27 October 2015
W Resources Plc
("W" or the "Company")
76% Increase in JORC Indicated Resource Tonnage at Régua
W Resources Plc (AIM:WRES), a tungsten, copper and gold exploration and development company announces a significant increase in the contained tungsten within the JORC compliant mineral resource estimate at Régua, located in Northern Portugal, following the completion of the new mineral resource estimate by Golder Associates.
The total resource tonnage increased by 22% to 5.46mt at a grade of 0.28% WO(3) , up from 4.46mt, and notably the indicated resource tonnage increased by 76% to 3.76mt at 0.304% WO(3) (2012: 2.14mt @ 0.367% WO(3) ).
2015 mineral resource estimate for the Régua Deposit using a 0.1% WO(3) Cut-Off Grade within mineralised domains
Hot Features
Premium
Tonnes (Mt) WO(3) % Contained WO(3)
(mtu)
----------- ------------ -------- ----------------
Indicated 3.76 0.304 1,143,040
----------- ------------ -------- ----------------
Inferred 1.70 0.227 385,900
----------- ------------ -------- ----------------
Total 5.46 0.280 1,528,800
----------- ------------ -------- ----------------
Source: Golder Associates Document No. 1526105-001-L-Rev0
The updated resource model is based on thick high-grade sections of tungsten mineralisation at or near surface and will form the basis for mine planning and mine reserve estimation. The outcrop area drilled mid-year has the potential for low cost high-grade open pit development.
Michael Masterman, Chairman of W Resources commented: "The drilling campaign at Régua exceeded our initial expectations and we are delighted that the work to date has resulted in this significant increase in the indicated resources at Régua. The results to date provide us with a strong basis for the next phase of mine planning as we move the project nearer to production."
The next step is now to complete the mine planning and reserve estimation process, which is targeted for the first quarter 2016. Metallurgical work has progressed well over the last quarter with good metal recoveries. A full update on the metallurgical programme and results will be provided in the next two months.
Summary of Mineral Resource Statement
The mineral resource inventory was classified as either Indicated or Inferred Resources. The classification of the mineral resources was considered appropriate based on geological confidence criteria and the location and quality of drilling and sampling information.
The resource estimate is based on the Ordinary Kriging interpolated block model.
The mineral resource consists of mineralised skarn horizons hosted within calcsilicate-altered schists and greywackes. The deposit is cross cut by a fault splitting the deposit into two separate areas. The skarn units continue across the fault although the orientation of the mineralisation is different for each fault block. A WO(3) cut-off grade of 0.1% was applied to the mineral resource estimate.
The information in the statement which relates to the mineral resource is based on information compiled in accordance with the JORC Code, 2012 Edition.
Enquiries:
W Resources Plc Grant Thornton UK LLP Michael Masterman Colin Aaronson / Jen Clarke / T: +44 (0) 20 7193 7463 Harrison Clarke www.wresources.co.uk T: +44 (0) 20 7383 5100 SI Capital - Joint Broker Gable Communications Andy Thacker / Nick Emerson Justine James T: +44 (0) 1483 413500 T: +44 (0) 20 7193 7463 www.sicapital.co.uk M: +44 (0) 7525 324431 Northland Capital Partners - Joint Broker John Howes / Abigail Wayne (Corporate Broking) T: +44 (0) 20 7382 1100 www.northlandcp.co.uk
About Régua
W Resources Plc (AIM:WRES) owns a permit for the exploration of the Régua tungsten deposit located 400km North of Lisbon and 95km East of Porto in the municipality of the town of Armamar. The Company was awarded a trial mining licence by the Portuguese Ministry for the Environment, Territorial Planning and Energy in June 2014.
Régua tungsten deposit has a resource of 5.46 million tonnes grading 0.28% WO(3) , at a cut-off of 0.1% WO(3) , covering an area of 8km(2). The deposit has not been previously mined and is located close to infrastructure with good road access.
Technical information in this report and on the W website has been prepared in accordance with the JORC Code or defined by National Instrument 43-101 and approved for inclusion by Mr José Mario Castelo Branco, EuroGeol, who is a "qualified person" in respect of the AIM Rules for Companies with over 32 years' experience in the Exploration and Mining Geology industry. Mr Castelo Branco holds a B.Sc. in Geology from the University of Porto in Portugal. He is also a member of the Portuguese Association of Geologists (Number 354), the European Federation of Geologists, the Society of Economic Geologists, the Society for Geology Applied to Mineral Deposits and the Prospectors and Developers Association of Canada.
The JORC Code Assessment Criteria
The JORC Code, 2012 Edition describes a number of criteria, which must be addressed in the Public Reporting of Mineral Resource estimates. These criteria provide a means of assessing whether or not parts of or the entire data inventory used in the estimate are adequate for that purpose. The Mineral Resource estimates stated in this document were based on the criteria set out in Table 1 of that Code. These criteria are discussed in Table 2 as follows.
Table 2: JORC Code Table 1.
JORC Code Assessment Criteria Comment
====================================== =============================================
Section 1 Sampling Techniques and Data
=====================================================================================
Sampling Techniques ! Rock chip sampling from
outcrops and trenches was
performed to determine whether
prospective tungsten mineralised
lithology (skarn) may yield
any anomalous tungsten values
and not to determine average
grades.
! Samples weighing from 500
g to 1 kg were taken from
each sampling location, and
its position was recorded
with a hand-held GPS.
! Diamond drilling was used
to obtain core samples.
! Sampled intervals included
visual scheelite bearing mineralised
skarns identified under UV
light and two 1 metre samples
taken immediately above and
immediately below the mineralised
sample.
! All rock samples were bagged
for shipment to the laboratory
inside cotton bags with the
number written on the outside.
The cotton bag is put in a
plastic bag which includes
a tag with the sample number
inside as well as the same
number written on the outside
of the plastic bag, in both
cases in waterproof ink.
====================================== =============================================
Nature and quality of sampling
(e.g. cut channels, random
chips, or specific specialised
industry standard measurement
tools appropriate to the
minerals under investigation,
such as downhole gamma
sondes, or handheld XRF
instruments, etc.). These
examples should not be
taken as limiting the broad
meaning of sampling.
Include reference to measures
taken to ensure sample
representivity and the
appropriate calibration
of any measurement tools
or systems used.
Aspects of the determination
of mineralisation that
are Material 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.
====================================== =============================================
Drilling Techniques ! Core was obtained with an
Acker drill rig with wireline
capability.
! B146 (132 mm recovered
core) was used for ensuring
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high recovery along the weathered/fractured
surficial rock mass, while
otherwise PWL (85 mm recovered
diameter) and HWL (63.5 mm
recovered core) was used.
! All drill holes were surveyed
at the collar surface by high-resolution
topographic survey. Data for
Eastings, Northings and RL
was recorded in PT--TM06/ETRS89,
WGS84-UTM-ZONE29N.
! All drill holes have been
subject to downhole surveying,
to record variations from
the original inclination.
! Surveys have been recorded
at varying intervals, using
EZ-Trac from Reflex Instruments.
! Core was oriented in selected
holes using ACT II RD from
Reflex Instruments.
====================================== =============================================
Drill type (e.g. core,
reverse circulation, open-hole
hammer, 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 Sample Recovery ! Sample recovery was assessed
visually, recorded onto a
logging sheet, photographed
and inserted in an Excel spreadsheet.
====================================== =============================================
Method of recording and
assessing core and chip
sample 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 ! Logging was performed after
core fragment "puzzle" reconstruction,
and a line was marked down
the centre of the core.
! Diamond core was geotechnically
logged, and complete data
(recovery, RQD, joint orientation,
spacing, roughness and weathering)
was recorded onto a logging
sheet and inserted in an Excel
spreadsheet.
! Diamond core was geologically
logged, and complete data
(lithology, alteration, structural
data and mineralisation) was
recorded onto a coded logging
sheet and inserted in an Excel
database.
! All drill holes have been
logged in full.
====================================== =============================================
Whether core and chip samples
have been geologically
and geotechnically logged
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--Sampling Techniques ! The core was cut by diamond
and Sample Preparation saw along a line marked down
the centre of the core, splitting
the core into two equal halves.
One quarter of the PWL core
and one half of the HWL core
were sent for analysis and
remaining core was retained
in wooden core boxes for future
reference.
! Half and quarter core samples
were sent to ALS Laboratory
in Seville, Spain for assaying
! At ALS facilities, samples
were crushed (70%<2 mm), dried,
split and pulverised (85%<75
m) to produce a representative
sub--sample for analysis by:
Aqua Regia digestion and combined
ICP-MS and ICP-AES (ref. ME-MS41)
and lithium borate fusion
with XRF finish for tungsten
(ME-XRF10).
! The following elements
were included in the analysis:
Ag, Al, As, Au, B, Ba, Be,
Bi, Ca, Cd, Ce, Co, Cr, Cs,
Cu, Fe, Ga, Ge, Hf, Hg, In,
K, La, Li, Mg, Mn, Mo, Na,
Nb, Ni, P, Pb, Rb, Re, S,
Sb, Sc, Se, Sn, Sr, Ta, Te,
Th, Ti, Tl, U, V, W, Y, Zn,
Zr, WO(3) .
====================================== =============================================
If core, whether cut or
sawn and whether quarter,
half or all core taken.
If non--core, whether riffled,
tube sampled, rotary split,
etc., and whether sampled
wet or dry.
For all sample types, the
nature, quality and appropriateness
of the sample preparation
technique.
Quality control 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-half sampling.
Whether sample sizes are
appropriate to the grain
size of the material being
sampled.
====================================== =============================================
Quality of Assay Data and ! Short wave UV light was
Laboratory Tests used to identify the presence
of scheelite in the core but
was not use as a quantitative
or semi-quantitative method.
! Internationally certified
standards and blanks were
regularly introduced among
core samples with frequency
of 1 in 20 approximately.
! Internal laboratory cross
checking methods are implemented
by ALS.
! Assay data reported as
per laboratory final reports
and certificates.
====================================== =============================================
The nature, quality and
appropriateness of the
assaying and laboratory
procedures used and whether
the technique is considered
partial or total.
For geophysical tools,
spectrometers, handheld
XRF instruments, etc.,
the parameters used in
determining the analysis
including instrument make
and model, reading times,
calibrations factors applied
and their derivation, etc.
Nature of quality control
procedures adopted (e.g.
standards, blanks, duplicates,
external laboratory checks)
and whether acceptable
levels of accuracy (i.e.
lack of bias) and precision
have been established.
====================================== =============================================
Verification of Sampling ! Verification of significant
and Assaying intersections by alternative
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company personnel.
! Primary logging paper sheets
stored at office, data entered
into Excel spreadsheets as
is and coded, both stored
in the server and in an external
hard drive.
! All core boxes are photographed
and a photo archive is maintained
within the drilling database.
====================================== =============================================
The verification of significant
intersections by either
independent or alternative
company personnel.
The use of twinned holes.
Documentation of primary
data, data entry procedures,
data verification, data
storage (physical and electronic)
protocols.
Discuss any adjustment
to assay data.
====================================== =============================================
Location of Data Points ! Drill hole collars survey
by precision dGPS with GPRS
on-line processing with 10
mm accuracy and Total Station.
! Grid system PT-TM06/ETRS89,
WGS84-UTM-ZONE29N.
! Topographic information
has been sourced from a publically
available database ReNEP produced
by Portuguese Geographic Institute.
====================================== =============================================
Accuracy and quality of
surveys used to locate
drill holes (collar and
downhole 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 Spacing and Distribution ! Completed drill holes were
designed for testing different
targets and have irregular
spacing.
! Data spacing is irregular
but is close to 40 m by 40
m sufficient to establish
Mineral Resource.
! Data spacing and distribution
is currently considered by
the Competent Person to be
sufficient only for Indicated
and Inferred Mineral Resources
and thus currently not sufficient
to support an Ore Reserve
estimate.
====================================== =============================================
Data spacing for reporting
of Exploration Results.
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.
====================================== =============================================
Orientation of Data in ! The orientation of drilling
Relation to Geological is approximately perpendicular
Structure to the strike of the mineralised
bodies.
! The dip of the drill holes
is not perpendicular to the
true dip of the skarn bodies,
so the intersections do not
represent true widths.
====================================== =============================================
Whether the orientation
of sampling achieves unbiased
sampling of possible structures
and the extent to which
this is known, considering
the deposit 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 Security ! Samples are kept in labelled
wooden core boxes in a locked
building.
! Industry standard practices
are applied.
====================================== =============================================
The measures taken to ensure
sample security.
====================================== =============================================
Audits and Reviews ! Golder has not undertaken
audits or reviews of the sampling
techniques and data. Golder
is not aware of any audits
or reviews carried out by
other parties.
====================================== =============================================
The results of any audits
or reviews of sampling
techniques and data.
====================================== =============================================
Section 2 Reporting of Exploration Results
=====================================================================================
Mineral Tenement and Land ! Trial mine license CE-142
Tenure Status granted to Iberian Resources
Portugal, Recursos Minerais,
Unipessoal, Lda, 100% owned
by W Resources Plc.
====================================== =============================================
Type, reference name/number,
location and ownership
including agreements or
material issues with third
parties such as joint ventures,
partnerships, overriding
royalties, native title
interests, historical sites,
wilderness or national
park and environmental
settings.
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.
====================================== =============================================
Exploration Done by Other ! Previous exploration activities
Parties in 1980's by "Minas de Santa
Leucádia, Lda" and "Rio
Tinto Finance and Exploration,
Ldt."(Riofinex).
====================================== =============================================
Acknowledgment and appraisal
of exploration by other
parties.
====================================== =============================================
Geology ! Scheelite bearing skarns
within impure carbonate horizons
of a pre-Ordovican greywaque-schist
sequence, which has been affected
by contact metamorphism from
Hercynian granites.
====================================== =============================================
Deposit type, geological
setting and style of mineralisation.
====================================== =============================================
Drill hole information ! Not applicable. Exploration
results have previously been
reported. This Table relates
to the reporting of the Mineral
Resource estimates.
====================================== =============================================
Data aggregation methods ! No maximum or minimum grade
truncations were performed
to the assay data
! No metal equivalents used
or stated
====================================== =============================================
Relationship between mineralisation ! Drill intersections are
widths and intercept lengths not reported as true widths.
====================================== =============================================
Diagrams ! Not applicable. Exploration
results have previously been
reported. This Table relates
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to the reporting of the Mineral
Resource estimates.
====================================== =============================================
Balance reporting ! Not applicable. Exploration
results have previously been
reported. This Table relates
to the reporting of the Mineral
Resource estimates.
====================================== =============================================
Other substantive exploration ! Not applicable. Exploration
data results have previously been
reported. This Table relates
to the reporting of the Mineral
Resource estimates.
====================================== =============================================
Further work ! Further work will include
detailed interpretation of
results and further diamond
core drilling.
====================================== =============================================
Section 3 Estimation and Reporting of Mineral Resources
=====================================================================================
Database Integrity ! All drilling data is contained
in an Excel database and stored
by Iberian Resources. Validation
in the database is set to
prevent the accidental duplication,
alteration or deletion of
records suitable for use during
this resource estimate.
====================================== =============================================
Measures taken to ensure
that data has not been
corrupted by, for example,
transcription or keying
errors, between its initial
collection and its use
for Mineral Resource estimation
purposes.
Data validation procedures
used.
====================================== =============================================
Site Visits ! The Competent Person or
a Golder representative to
date has not visited the project
site due to schedules and
time constrains. A site visit
will be completed prior to
the commencement of the mining
studies.
====================================== =============================================
Comment on any site visits
undertaken by the Competent
Person and the outcome
of those visits.
If no site visits have
been undertaken indicate
why this is the case.
====================================== =============================================
Geological Interpretation ! Iberian Resources has carried
out interpretation of the
mineralisation and weathering.
Iberian Resources is confident
in the overall geological,
weathering and mineralisation
interpretation of the deposit.
The mineralisation interpretation
comprised 72 vertical sections
aligned to azimuth N210. The
interpretation was transferred
to Golder as DXF sections
however not-georeferenced.
Golder interpretation was
based on these geology sections
and adapted where necessary.
! Three dimensional wireframe
modelling were carried out
using Vulcan(R) software.
! The mineralisation consists
of mineralised skarn horizons
hosted within calcsilicate-altered
schists and greywackes. The
deposit is cross-cut by a
fault splitting the deposit
into two separate areas. The
skarn units continue across
the fault although the orientation
or the mineralisation is different
for each fault block. A WO(3)
cut-off grade of 0.05% was
applied for the modelling
of mineralisation domains,
which is below the 0.1% cut-off
grade applied for Mineral
Resource reporting
====================================== =============================================
Confidence in (or conversely,
the uncertainty of) the
geological interpretation
of the mineral deposit.
Nature of the data used
and of any assumptions
made.
The effect, if any, of
alternative interpretations
on Mineral Resource estimation.
The use of geology in guiding
and controlling Mineral
Resource estimation.
The factors affecting continuity
both of grade and geology.
====================================== =============================================
Dimensions ! The mineralised zone is
approximately 900 m long (north
west-south east) by 400 m
wide. The mineralisation goes
from surface outcrop to approximately
300m below the surface in
the deepest zone.
====================================== =============================================
The extent and variability
of the Mineral Resource
expressed as length (along
strike or otherwise), plan
width, and depth below
surface to the upper and
lower limits of the Mineral
Resource.
====================================== =============================================
Estimation and Modelling ! The estimation technique
Techniques used for the Mineral Resource
estimation is the geostatistical
method of Ordinary Kriging.
Parameters were derived from
variograms to estimate the
average grade for WO(3) ,
AS and S.
! Block sizes were selected
with respect to the nominal
drilling spacing to ensure
acceptable local estimation
quality.
! The block size selected
for each deposit is 10 m (X)
by 10 m (Y) by 5 m (Z). The
sub-block size is 1 m (X)
by 1 m (Y) by 0.5 m (Z).
! All samples were composited
to 2 m for estimation purposes.
! The estimation was conducted
in three passes with the search
size increasing for each pass.
! High grade spatial restraining
was applied for grade estimation
of individual domains. The
threshold uses to restrict
high grades was based on the
assessment of sample statistics
and probability plots. Restraining
of high grades was to within
10 m by 10 m by 10 m distance.
! Each individual domain
was estimate separately and
an unfolding technique was
applied for estimation to
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better capture mineralisation
continuity within the domains
! The model was validated
visually and statistically
using comparisons to composite
data statistics, swath plots
and evaluation of the grade
estimation smoothing effect.
====================================== =============================================
The nature and appropriateness
of the estimation technique(s)
applied and key assumptions,
including treatment of
extreme grade values, domaining,
interpolation parameters,
and maximum distance of
extrapolation from data
points. If a computer assisted
estimation method was chosen
include a description of
computer software and parameters
used.
The availability of check
estimates, previous estimates
and/or mine production
records and whether the
Mineral Resource estimate
takes appropriate account
of such data.
The assumptions made regarding
recovery of by--products.
Estimation of deleterious
elements or other non--grade
variables of economic significance
(e.g. sulfur for acid mine
drainage characterisation).
In the case of block model
interpolation, the block
size in relation to the
average sample spacing
and the search employed.
Any assumptions behind
modelling of selective
mining units.
Any assumptions about correlation
between variables.
Description of how the
geological interpretation
was used to control the
resource estimates.
Discussion of basis for
using or not using grade
cutting or capping.
The process of validation,
the checking process used,
the comparison of model
data to drill hole data,
and use of reconciliation
data if available.
====================================== =============================================
Moisture ! All Mineral Resource tonnages
are reported on a dry basis.
====================================== =============================================
Whether the tonnages are
estimated on a dry basis
or with natural moisture,
and the method of determination
of the moisture content.
====================================== =============================================
Cut-off Parameters ! The resource model is constrained
by assumptions about economic
cut-off grades. The mineralisation
is confined by a 0.05% WO(3)
cut-off grade. The tabulated
resources were reported using
cut-off grade of 0.1% WO(3)
which was applied on a block
by block basis.
====================================== =============================================
The basis of the adopted
cut-off grade(s) or quality
parameters applied.
====================================== =============================================
Mining Factors or Assumptions ! The Mineral Resource estimation
approach has assumed that
mining will take place using
an open pit, selective mining
method. The vertical block
size is 5 m, which forms the
basis of the assumed vertical
selectivity in the Mineral
Resource estimate.
====================================== =============================================
Assumptions made regarding
possible mining methods,
minimum mining dimensions
and internal (or, if applicable,
external) mining dilution.
It is always necessary
as part of the process
of determining reasonable
prospects for eventual
economic extraction to
consider potential mining
methods, but the assumptions
made regarding mining methods
and parameters when estimating
Mineral Resources may not
always be rigorous. Where
this is the case, this
should be reported with
an explanation of the basis
of the mining assumptions
made.
====================================== =============================================
Metallurgical Factors or ! No metallurgical assumptions
Assumptions have been made.
====================================== =============================================
The basis for assumptions
or predictions regarding
metallurgical amenability.
It is always necessary
as part of the process
of determining reasonable
prospects for eventual
economic extraction to
consider potential metallurgical
methods, but the assumptions
regarding metallurgical
treatment processes and
parameters made when reporting
Mineral Resources may not
always be rigorous. Where
this is the case, this
should be reported with
an explanation of the basis
of the metallurgical assumptions
made.
====================================== =============================================
Environmental Factors or ! The municipality of Armamar
Assumptions has approved (early 2015)
the new Land Use Plan. The
Regua project area is included
as potential for a future
tungsten operation, so it
is assumed that process and
waste disposal infrastructures,
as well as water storage,
should be acceptable as part
of any mining operation. And
a baseline environmental study
for the trial mine is about
to begin to be presented to
the authorities for obtaining
the final mining license.
====================================== =============================================
Assumptions made regarding
possible waste and process
residue disposal options.
It is always necessary
as part of the process
of determining reasonable
prospects for eventual
economic extraction to
consider the potential
environmental impacts of
the mining and processing
operation. While at this
stage the determination
of potential environmental
impacts, particularly for
a greenfields project,
may not always be well
advanced, the status of
early consideration of
these potential environmental
impacts should be reported.
Where these aspects have
not been considered this
should be reported with
an explanation of the environmental
assumptions made.
====================================== =============================================
Bulk Density ! Bulk density values were
assigned based on mineralisation
and fault block. The bulk
densities were based on immersion
measurements from median density
of 1 890 samples from 27 DDH
were used in determining the
assigned values.
====================================== =============================================
Whether assumed or determined.
If assumed, the basis for
the assumptions. If determined,
the method used, whether
wet or dry, the frequency
of the measurements, the
nature, size and representativeness
of the samples.
The bulk density for bulk
material must have been
measured by methods that
adequately account for
void spaces (vugs, porosity,
etc.), moisture and differences
between rock and alteration
zones within the deposit.
Discuss assumptions for
bulk density estimates
used in the evaluation
process of the different
materials.
====================================== =============================================
Classification ! The Mineral Resources were
classified according to the
following criteria and assumptions:
-- Measured Resources: Due
to the data scarcity and complexity
of parts the mineralisation
lode system, no Measured material
has been defined for Regua
deposit.
-- Indicated Resources: the
area of Regua deposit classified
as Indicated Resources;
- Has a relative drill spacing
(MORE TO FOLLOW) Dow Jones Newswires
October 27, 2015 05:01 ET (09:01 GMT)
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