REG - First Tin PLC - Completion of Taronga Drilling and Assay Results
12/06/2023 07:00
For best results when printing this announcement, please click on link below:
http://newsfile.refinitiv.com/getnewsfile/v1/story?guid=urn:newsml:reuters.com:20230612:nRSL3239Ca&default-theme=true
RNS Number : 3239C First Tin PLC 12 June 2023
12 June 2023
First Tin Plc
("First Tin" or "the Company")
Completion of Taronga Drilling and Assay Results
First Tin Plc ("First Tin"), a tin development company with advanced, low
capex projects in Germany and Australia, is pleased to announce that all
drilling, including "Phase 2" infill and extension drilling, at its Taronga
tin project in Australia, is now complete and that the results from the
programme have confirmed the approximately 400m extension to the southwest.
The project is owned by First Tin's 100% owned Australian subsidiary, Taronga
Mines Pty Ltd ("TMPL").
Highlights
· Infill and extension RC drilling "Phase 2": 2228m in 28
drillholes (3 abandoned)
· When added to the "Phase 1" infill and extension drilling, a
total of 4035m infill and extension RC drilling has been completed in 40
drillholes (3 abandoned)
· The drilling has extended the Payback Zone mineralisation
approximately 400m to the south and has provided indications the gap between
the south and north zones contains some mineralisation
· Significant drill intercepts from the southwest extension
include:
o 35m @ 0.20% Sn including 15m @ 0.35% Sn
o 49m @ 0.12% Sn including 28m @ 0.17% Sn
o 25m @ 0.20% Sn including 14m @ 0.25% Sn
o 37m @ 0.15% Sn including 11m @ 0.35% Sn
o 58m @ 0.11% Sn including 31m @ 0.15% Sn
o 39m @ 0.15% Sn including 8m @ 0.51% Sn
o 17m @ 0.19% Sn including 3m @ 0.42% Sn
o 45m @ 0.13% Sn including 9m @ 0.22% Sn
· Significant intercepts from the central area include:
o 15m @ 0.17% Sn
· Significant intercepts from infill drilling include:
o 59m @ 0.12% Sn including 24m @ 0.16% Sn
o 11m @ 0.19% Sn including 8m @ 0.23% Sn
· Now that all results have been received and compiled, a revised
Mineral Resource Estimation (MRE) will be undertaken, with results expected
within Q3 2023.
All results are presented in Table 1. The true width of intervals is around
half the downhole width. Estimated true widths are included in Table 1.
The southern extension drilling is significant as it has extended the
mineralisation to the southwest by around 400m (Figure 1). A typical cross
section is shown in Figure 2 and this shows the interpreted mineralisation
zone, which is approximately 20m true width. This is about average for the
400m strike tested to date.
The southernmost line of drilling still returned significant mineralisation,
indicating potential extensions still exist even further to the southwest.
A single line of drilling was put through the centre of the "gap" zone that
sits between the north and south zones identified by Newmont. This returned
three zones of mineralisation which are moderately mineralised with intercepts
of:
· 15m @ 0.17% Sn incl. 9m @ 0.25% Sn
· 22m @ 0.09% Sn and 39m @ 0.08% Sn (incl. 18m @ 0.10% Sn)
· 19m @ 0.09% Sn
These are shown on a cross section in Figure 4, the location of which is shown
in Figure 3. We expect that these zones are extensions of the Payback and
Payback Extended zones which trend into the north zone. They suggest good
potential to close the gap between the two Newmont mineralisation zones so
that a single pit may be possible. We expect to drill this area out in FY2024
as part of an optimisation programme.
Several drillholes were placed in the gaps in the previous drilling in order
to improve the resource category in those areas. These were generally
successful as shown by drillhole TMRC041 (Figures 5 and 3), which tested a
weakly defined northwest extension to the mineralisation in the north zone.
That hole returned 59m @ 0.12% Sn including 24m @ 0.16% Sn. This northwest
extension also requires additional drilling that may increase resources. This
is planned as part of the FY2024 optimisation programme.
Hole No. Easting (GDA94 Z56) Northing (GDA94 Z56) Elevation (m) Dip (°) Azimuth (° True) Total Depth (m) From (m) To (m) Interval (m) Estimated True Width (m) Grade (% Sn)
TMTARC014 359030.2 6747992.8 876.7 -60.5 325.0 31.0 abandoned
TMTARC014a 359025.7 6747994.7 876.8 -60.5 325.0 24.0 abandoned
TMTARC014b 359024.8 6747996.7 877.1 -60.5 325.0 21.0 abandoned
TMTARC015 358918.5 6747967.6 861.9 -59.5 322.0 150.0 24.0 35.0 11.0 6 0.20
incl. 24.0 29.0 5.0 3 0.34
70.0 72.0 2.0 1 0.13
91.0 96.0 5.0 3 0.15
115.0 129.0 14.0 7 0.09
incl. 115.0 118.0 3.0 2 0.19
TMTARC019 358842.4 6747848.6 861.0 -60.4 325.0 150.0 No significant mineralisation
TMTARC021 357967.6 6747440.1 845.8 -60.5 144.0 121.0 63.0 98.0 35.0 22 0.20
incl. 82.0 97.0 15.0 9 0.35
TMTARC022 357885.2 6747382.9 854.6 -60.2 143.0 110 60.0 109.0 49.0 23 0.12
incl. 69.0 97.0 28.0 13 0.17
TMTARC023 357945.1 6747395.1 847.7 -59.9 143.0 100 10.0 16.0 6.0 3 0.05
22.0 30.0 8.0 5 0.08
33.0 58.0 25.0 15 0.20
incl. 37.0 51.0 14.0 8 0.25
73.0 82.0 9.0 5 0.12
TMTARC024 357985.9 6747430.1 843.0 -59.8 144.0 80 41.0 78.0 37.0 23 0.15
incl. 53.0 64.0 11.0 7 0.35
TMTARC025 357809.1 6747318.6 843.7 -60.1 143.0 110 41.0 80.0 39.0 25 0.10
incl. 72.0 79.0 7.0 4 0.15
TMTARC026 357821.5 6747299.2 838.7 -60.3 143.0 60 8.0 37.0 29.0 19 0.14
incl. 13.0 32.0 19.0 9 0.15
TMTARC027 357908.3 6747363.1 851.5 -60.3 143.0 70 10.0 68.0 58.0 30 0.11
incl. 20.0 51.0 31.0 16 0.15
TMTARC028 358061.5 6747408.3 827.6 -60.1 323.0 109 0.0 39.0 39.0 10 0.15
incl. 15.0 23.0 8.0 3 0.51
46.0 83.0 37.0 12 0.16
incl. 55.0 76.0 21.0 7 0.21
94.0 107.0 13.0 4 0.08
TMTARC029 358126.1 6747435.5 834.8 -60.3 324.0 79 37.0 60.0 23.0 12 0.19
incl. 41.0 58.0 17.0 8 0.24
65.0 79.0 14.0 7 0.09
TMTARC030 358111.9 6747418.3 832.0 -60.3 323.0 80 63.0 80.0 17.0 9 0.19
incl. 66.0 72.0 6.0 3 0.42
TMTARC031 358181.2 6747454.1 837.6 -59.7 144.0 100 0.0 2.0 2.0 1 0.07
29.0 30.0 1.0 1 0.15
TMTARC032 358142.6 6747413.8 826.0 -60.0 324.0 103 nsi
TMTARC033 358092.3 6747444.3 839.9 -59.9 323.0 80 2.0 47.0 45.0 27 0.13
incl. 38.0 47.0 9.0 0.22
TMTARC034 358077.0 6747467.8 847.3 -60.1 324.0 80 18.0 22.0 4.0 2 0.05
71.0 80.0 9.0 4 0.07
TMTARC035 358125.0 6747537.4 866.1 -59.9 324.0 80 0.0 30.0 30.0 14 0.06
42.0 46.0 4.0 2 0.12
50.0 77.0 27.0 13 0.14
incl. 65.0 77.0 12.0 6 0.23
TMTARC036 359054.1 6748213.4 944.2 -60.2 324.0 50 48.0 50.0 2.0 1 0.07
TMTARC037 359112.1 6748138.2 936.4 -59.8 324.0 50 0.0 15.0 15.0 7 0.17
incl. 0.0 9.0 9.0 4 0.25
TMTARC038 359086.4 6748160.1 938.5 -60.1 324.0 50 0.0 5.0 5.0 2 0.07
TMTARC039 359123.2 6748111.7 927.3 -59.9 324.0 50 0.0 22.0 22.0 11 0.09
43.0 50.0 7.0 3 0.06
TMTARC040 359137.8 6748088.4 919.6 -60.1 323.0 80 0.0 19.0 19.0 9 0.09
36.0 75.0 39.0 20 0.08
incl. 45.0 63.0 18.0 9 0.10
69.0 75.0 6.0 3 0.08
TMTARC041 359264.2 6748382.9 860.6 -59.5 143.0 80 11.0 70.0 59.0 30 0.12
incl. 19.0 43.0 24.0 12 0.16
TMTARC042 359863.2 6748499.5 938.6 -60.0 144.0 80 0.0 3.0 3.0 1 0.08
10.0 15.0 5.0 2 0.09
20.0 25.0 5.0 2 0.09
65.0 73.0 8.0 4 0.07
TMTARC043 359832.3 6748437.1 932.3 -60.2 143.0 50 5.0 10.0 5.0 3 0.09
18.0 29.0 11.0 6 0.19
incl. 20.0 28.0 8.0 4 0.23
32.0 41.0 9.0 5 0.17
incl. 34.0 41.0 7.0 4 0.19
Table 1: Results of TMPL Phase 2 Infill and Extension RC Drilling
Figure 1: Taronga Drilling Summary Plan
Figure 2: Taronga Cross Section 3250N (see Figure 1 for Location)
Figure 3: Taronga Northern Zone Drilling Plan
Figure 4: Cross Section 4475N, Gap Area (see Figure 3 for location)
Figure 5: Cross Section 4850N, NW Extension Area (see Figure 3 for location)
First Tin CEO Thomas Buenger said: "The First Tin team in Taronga has made
great progress over the past year and we are incredibly pleased to confirm
that all drilling at our Taronga tin project in Australia is now complete and
that the results from the programme have confirmed an approximately 400m
extension to the southwest. This will be incorporated into a revised MRE, with
results expected within Q3 2023.
The DFS continues at pace and the range of workstreams underway are
progressing positively. We expect to undertake optimisation work at our
Taronga asset, following the completion of the DFS, to confirm the final
outline of the orebody. We look forward to next updating our shareholders as
we continue to advance our world-class Taronga project further."
Enquiries:
First Tin Via SEC Newgate below
Thomas Buenger - Chief Executive Officer
Arlington Group Asset Management Limited (Financial Advisor and Joint Broker)
Simon Catt 020 7389 5016
WH Ireland Limited (Joint Broker)
Harry Ansell 020 7220 1670
SEC Newgate (Financial Communications)
Elisabeth Cowell / Molly Gretton FirstTin@secnewgate.co.uk
Notes to Editors
First Tin is an ethical, reliable, and sustainable tin production company led
by a team of renowned tin specialists. The Company is focused on becoming a
tin supplier in conflict-free, low political risk jurisdictions through the
rapid development of high value, low capex tin assets in Germany and
Australia.
Tin is a critical metal, vital in any plan to decarbonise and electrify the
world, yet Europe has very little supply. Rising demand, together with
shortages, is expected to lead tin to experience sustained deficit markets for
the foreseeable future. Its assets have been de-risked significantly, with
extensive work undertaken to date.
First Tin's goal is to use best-in-class environmental standards to bring two
tin mines into production in three years, providing provenance of supply to
support the current global clean energy and technological revolutions.
APPENDIX 1
JORC Code, 2012 Edition - Table 1 Taronga Tin Project (TMPL)
Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections.)
Sampling techniques · Nature and quality of sampling (eg cut channels, random chips, or · Diamond drilling was used to obtain 1m samples of HQ core which was
specific specialised industry standard measurement tools appropriate to the sawn in half longitudinally. The half core was broken to less than 10cm sized
minerals under investigation, such as down hole gamma sondes, or handheld XRF pieces, bagged and sent to the laboratory for assay. This is industry standard
instruments, etc). These examples should not be taken as limiting the broad work.
meaning of sampling.
· Reverse Circulation (RC) drilling was used to obtain 1m samples
· Include reference to measures taken to ensure sample representivity from a 4.5 inch diameter drill hole. Drilled material was split with an
and the appropriate calibration of any measurement tools or systems used. onboard riffle splitter connected to the cyclone to obtain an approximately
3-5kg representative sub-sample that was bagged and sent to the laboratory for
· Aspects of the determination of mineralisation that are Material to assay. This is industry standard work.
the Public Report.
· All core and RC samples were sent for assay after being logged by
· In cases where 'industry standard' work has been done this would be the geologist.
relatively simple (eg 'reverse circulation drilling was used to obtain 1 m
samples from which 3 kg was pulverised to produce a 30 g charge for fire · The drill core and RC samples were sent to ALS Laboratories in
assay'). In other cases more explanation may be required, such as where there Zillmere QLD.
is coarse gold that has inherent sampling problems. Unusual commodities or
mineralisation types (eg submarine nodules) may warrant disclosure of detailed · Samples were crushed to sub 6mm, split and pulverised to sub 75µm
information. in order to produce a representative sub-sample for analysis.
· Analysis of the diamond drill and RC samples consisted of a
four-acid digest and Inductively Coupled Plasma Optical Emission Spectrometry
(ICP-OES) for the following elements: Ag, Al, As, Ba, Be, Bi, Ca, Cd, Co, Cr,
Cu, Fe, Ga, K, La, Li, Mg, Mn, Mo, Na, Ni, P, Pb, S, Sb, Sc, Sn, Sr, Th, Ti,
Tl, U, V, W & Zn. The samples were also assayed for Nb, Sn, Ta, and W
using a lithium borate fusion and ICP-MS technique. If over detection on the
ICP was reached, then the samples were assayed using XRF. Standards and blanks
were inserted at a rate of 10%.
· All drilling samples were analysed and hence no prior determination
of mineralisation was made.
Drilling techniques · Drill type (eg core, reverse circulation, open-hole hammer, rotary · Diamond drilling was undertaken by contractors DRC Drilling. All
air blast, auger, Bangka, sonic, etc) and details (eg core diameter, triple or drilling used an HQ bit with a soft matrix. Drill rods were triple tube to
standard tube, depth of diamond tails, face-sampling bit or other type, ensure good core recovery and avoid washing out of cassiterite.
whether core is oriented and if so, by what method, etc).
Percussion drilling was undertaken by contractors Schonknecht Drilling, using
a face sampling 4.5 inch "Black Diamond" hammer, 137mm PED (polycarbonate
diamond) bit and a 4.5 inch, 6m stainless steel rod. A tight shroud (3mm
gap) ensured the holes remained as straight as possible. A 350psi, 900cfm
compressor was used to keep holes dry and ensure all heavy minerals such as
cassiterite are recovered.
Drill sample recovery · Method of recording and assessing core and chip sample recoveries and · All core intervals are measured and compared with drillers marks to
results assessed. determine actual recovery. Recovery was generally 100% apart from isolated
intervals with poor ground conditions, generally either near surface or in
· Measures taken to maximise sample recovery and ensure representative fault zones.
nature of the samples.
· Sample recovery is measured and recorded by company trained geology
· Whether a relationship exists between sample recovery and grade and technicians and geologists.
whether sample bias may have occurred due to preferential loss/gain of
fine/coarse material. · Minimal sample loss has occurred.
· All RC samples are weighed. This gives a good idea as to recovery
for the 1m intervals sampled as the density does not vary significantly.
Recovery is estimated to be very good in general. A high pressure and volume
compressor is used to endure good sample return and to keep holes dry. No
significant water was encountered meaning sample quality is good. The hole
is cleaned out with compressed air after every rod change and no significant
volume of material is returned via this process.
· No relationship can be seen between recovery and grade. No sample
bias is noted.
Logging · Whether core and chip samples have been geologically and · All drill core has been geologically and geotechnically logged to a
geotechnically logged to a level of detail to support appropriate Mineral level of detail to support appropriate mineral estimation, mining, and
Resource estimation, mining studies and metallurgical studies. metallurgical studies.
· Whether logging is qualitative or quantitative in nature. Core (or · The six geotechnical holes were logged by qualified specialist
costean, channel, etc) photography. geotechnical engineers.
· The total length and percentage of the relevant intersections logged. · All RC cuttings have been geologically logged to a level of detail to
support appropriate mineral estimation, mining, and metallurgical studies.
· All drill core has been photographed and logging is quantitative in
nature, following a strict set of guidelines. The entire length of the core
has been logged. Qualitative logging includes lithology, alteration and
textures.
· Quantitative logging includes sulphide and gangue mineral
percentages.
· All RC logging is semi-quantitative in nature, following a strict set
of guidelines, with percentage estimates made. Representative sub-samples
are collected, sieved and generally panned to estimate heavy mineral
content. A sub-set of rock chips are kept in chip-trays for reference.
Sub-sampling techniques and sample preparation · If core, whether cut or sawn and whether quarter, half or all core · All core is HQ3. This is sawn in half after fitting together of
taken. core across drillers breaks and a reference line marked on the core. A
consistent side of the core is taken for sampling as half core. This is
· If non-core, whether riffled, tube sampled, rotary split, etc and broken so it will fit in a bag and sent to the ALS laboratory in Brisbane.
whether sampled wet or dry.
· All RC cuttings are weighed then riffle split to obtain between 3kg
· For all sample types, the nature, quality and appropriateness of the and 5kg of sample. All samples are dry. The sub-sample is sent to ALS
sample preparation technique. laboratory in Brisbane.
· Quality control procedures adopted for all sub-sampling stages to · Sample sizes are considered appropriate for the material being
maximise representivity of samples. sampled as the tin mineralisation occurs as cassiterite (SnO(2)) within
sub-vertical veins that are between 0.05mm and 0.5cm wide (rarely to 5cm) and
· Measures taken to ensure that the sampling is representative of the cassiterite crystals are smaller than vein width. Vein density varies from
in situ material collected, including for instance results for field about 5/m to greater than 20/m and hence several veins are sampled in each
duplicate/second-half sampling. metre. This compares with sample size that is approximately 10,000 cm(3) for
RC and 3,200cm(3) for HQ Core before sub-sampling.
· Whether sample sizes are appropriate to the grain size of the
material being sampled. · Drilling is at an angle of -60° or less and hence cuts across veins
that are sub-vertical (-90°).
· At the ALS laboratory in Brisbane, the sample of core or RC chips is
crushed and split to less than 3kg if appropriate using method CRU-21. The
entire sample or sub-sample is then pulverized in a mill to 85% finer than
75µm using method PUL-23.
Quality of assay data and laboratory tests · The nature, quality and appropriateness of the assaying and · Tin is a difficult element to analyse as cassiterite is not soluble
laboratory procedures used and whether the technique is considered partial or in acid. Thus, a sub-sample of the pulverized and mixed material is taken
total. and fused with lithium borate. The fused bead is then analysed by a mass
spectrometer using method ME-MS85 which reports Sn, W, Ta and Nb. This
· For geophysical tools, spectrometers, handheld XRF instruments, etc, returns a total tin content, including tin as cassiterite. Over limit assays
the parameters used in determining the analysis including instrument make and of tin are re-analysed using method ME-XRF15b which involves fusion with
model, reading times, calibrations factors applied and their derivation, etc. lithium metaborate with a lithium tetraborate flux containing 20% NaNO(3) with
an XRF finish.
· Nature of quality control procedures adopted (eg standards, blanks,
duplicates, external laboratory checks) and whether acceptable levels of · Other elements are analysed by method ME-ICP61. This involves a 4
accuracy (ie lack of bias) and precision have been established. acid (HF-HNO(3)-HCLO(4) digest, HCl leach and ICP-AES finish). This is an
industry standard technique for Cu, Pb, Zn and Ag. A suite of 34 elements
are reported, including tin, which is only acid soluble tin in this case and
thus can be subtracted from the fusion tin assays to obtain tin as
cassiterite. The acid soluble tin is generally associated with stannite and
in the lattice of silicates. It is generally insignificant is relation to
tin as cassiterite at Taronga.
· Prior to dispatch of samples, the following QaQc samples are added:
o Certified standards representative of the grades expected are added at
the rate of 1 in 40 samples
o Blanks are added at the rate of 1 in 40 samples
o Duplicates are added at the rate of 1 in 20 samples for RC. These
are riffle split from the original sample on site.
o For diamond drilling, the half core is split into two quarter cores
every 1 in 20 samples and these are sent as duplicates
· All QAQC data is within acceptable limits, with re-assay of any out
of specification batches undertaken.
·
Verification of sampling and assaying · The verification of significant intersections by either independent · Twinning of the previous Newmont drillholes has included:
or alternative company personnel.
o 11 TMPL DD twins of Newmont DD Holes
· The use of twinned holes.
o 2 TMPL DD twins of Newmont percussion holes
· Documentation of primary data, data entry procedures, data
verification, data storage (physical and electronic) protocols. o 5 TMPL RC twins of Newmont percussion holes
· Discuss any adjustment to assay data. · All data is recorded on site in Excel spreadsheets and this is later
transferred to an Access database - the main data repository. Detailed
protocols for data recording, logging codes etc are used.
·
Location of data points · Accuracy and quality of surveys used to locate drill holes (collar · All drillholes are pre-planned and located by use of handheld GPS.
and down-hole surveys), trenches, mine workings and other locations used in Holes were originally sited and angled using compass and clinometer. This
Mineral Resource estimation. was changed to using Devico gyro navigation for the later drillholes in order
to get an added level of accuracy. All hole collars are surveyed in
· Specification of the grid system used. accurately post drilling with RTKGPS (+-0.1m).
· Quality and adequacy of topographic control. · All DDH drillholes are surveyed using downhole gyroscopic surveys.
· All RC holes are surveyed using downhole magnetic surveys.
· All holes have surveys approximately every 30m downhole.
· The grid system used is GDA94, zone 56.
· Topography is obtained via a Lidar survey flown in late 2022 and is
to sub 10cm accuracy.
Data spacing and distribution · Data spacing for reporting of Exploration Results. · The original drilling undertaken was to better than 50m x 50m
spacing.
· Whether the data spacing and distribution is sufficient to establish
the degree of geological and grade continuity appropriate for the Mineral · Twin drilling is selected to represent all 4 zones of mineralisation
Resource and Ore Reserve estimation procedure(s) and classifications applied. and the length of the known deposit.
· Whether sample compositing has been applied. · The original data spacing is considered to be sufficient to establish
the degree of geological and grade continuity appropriate for the JORC
classifications applied.
·
Orientation of data in relation to geological structure · Whether the orientation of sampling achieves unbiased sampling of · The drilling is oriented at 90° to the orientation of the sheeted
possible structures and the extent to which this is known, considering the veins.
deposit type.
· The veins are sub-vertical and the drilling is angled at between
· If the relationship between the drilling orientation and the -25° and -60° to be as close as possible to cutting across the veins at
orientation of key mineralised structures is considered to have introduced a 90°. Due to difficulties drilling at very shallow angles, especially with
sampling bias, this should be assessed and reported if material. RC, a default angle of -60° was adopted for the later drillholes.
· As drilling was designed to cut the main sheeted veins at as high an
angle as possible. The potential for any introduced sampling bias is
considered minor.
Sample security · The measures taken to ensure sample security. · A chain of custody was maintained for all TMPL drilling.
Audits or reviews · The results of any audits or reviews of sampling techniques and data. · An initial review of sampling procedures whilst drilling was in
progress, with some recommendations, was completed by Simon Tear of
independent consultants H&S Consultants Pty Ltd
Section 2 Reporting of Exploration Results
(Criteria listed in the preceding section also apply to this section.)
Mineral tenement and land tenure status · Type, reference name/number, location and ownership including · The project is secured by two granted tenements: EL8407 and ML 1774,
agreements or material issues with third parties such as joint ventures, both of which are currently in good standing. These are held 100% by TMPL.
partnerships, overriding royalties, native title interests, historical sites,
wilderness or national park and environmental settings. · No joint ventures or other encumbrances are known. The underlying
properties are freehold land owned 100% by TMPL apart from a block of Crown
· The security of the tenure held at the time of reporting along with Land that covers part of the southern deposit area as defined by Newmont.
any known impediments to obtaining a licence to operate in the area.
· The Crown Land is the only land subject to Native Title. No native
title claims existed at the time the tenements were granted but a statewide
native title claim on crown land is believed to exist.
· No national parks, historical sites or environmental constraints are
known. Recent surveys have identified the "vulnerable" flora species Velvet
Wattle. This is currently being avoided as much as possible and is not
considered to be a major constraint moving forward.
· The only royalty is the state of NSW royalty of 4% on tin mined.
Exploration done by other parties · Acknowledgment and appraisal of exploration by other parties. · Detailed exploration and feasibility studies were undertaken by
Newmont between 1979 and 1984. These have been used where applicable.
· This work was undertaken to a high standard and all data is
considered to be usable.
Geology · Deposit type, geological setting and style of mineralisation. · The deposit is a sheeted vein style tin +/- copper-silver deposit
with horizontally and vertically extensive veins of
quartz-mica-cassiterite-sulphide+/-fluorite-topaz occurring over a combined
area of up to 2,600m by 270m.
· The veins vary in thickness from less than 0.5mm to 100mm but are
generally between 1mm and 10mm thick and average about 20 veins per metre.
· The host rock is hornfels derived by contact metamorphism of Permian
aged metasediments.
· The source of mineralising fluids is interpreted to be an underlying
intrusion of the Triassic Mole Leucogranite, a reduced, highly fractionated, A
to I type granite. The metals of interest (Sn, Cu, Ag) are interpreted to
have been enriched in the late magmatic fluid of this granite via enrichment
of incompatible elements during fractional crystallisation. Breaching of the
magma chamber during brittle faulting in an ENE orientation has tapped these
enriched fluids which have subsequently deposited the metals due to changing
temperature and pressure conditions and/or mixing with meteoric fluids.
Drill hole Information · A summary of all information material to the understanding of the · See Attachment 1 - Drill Hole Details.
exploration results including a tabulation of the following information for
all Material drill holes:
o easting and northing of the drill hole collar
o elevation or RL (Reduced Level - elevation above sea level in metres) of the
drill hole collar
o dip and azimuth of the hole
o down hole length and interception depth
o 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 aggregation methods · In reporting Exploration Results, weighting averaging techniques, · All intercepts shown are weighted averages of uncut data. The
maximum and/or minimum grade truncations (eg cutting of high grades) and intervals are based on a nominal lower cut-off of 0.05% Sn.
cut-off grades are usually Material and should be stated.
· The only high grades are due to very thick veins with coarse
· Where aggregate intercepts incorporate short lengths of high grade cassiterite. These are shown in the table as to leave them out would give an
results and longer lengths of low grade results, the procedure used for such unrealistic view of grade variability.
aggregation should be stated and some typical examples of such aggregations
should be shown in detail. · No metal equivalent grades are quoted.
· The assumptions used for any reporting of metal equivalent values
should be clearly stated.
Relationship between mineralisation widths and intercept lengths · These relationships are particularly important in the reporting of · As mineralisation is sub-vertical and while holes dip at between
Exploration Results. -28° and -60°, actual true widths vary from 88% to 50% of interval widths.
· If the geometry of the mineralisation with respect to the drill hole · True widths are shown in the attached table.
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 (eg 'down hole length, true width
not known').
Diagrams · Appropriate maps and sections (with scales) and tabulations of · Plan view provided. As results are twins of existing drilling,
intercepts should be included for any significant discovery being reported sections are not shown.
These should include, but not be limited to a plan view of drill hole collar
locations and appropriate sectional views.
Balanced reporting · Where comprehensive reporting of all Exploration Results is not · Results are twins of old data and only the direct comparison is of
practicable, representative reporting of both low and high grades and/or relevance here.
widths should be practiced to avoid misleading reporting of Exploration
Results. · The accompanying document is considered to represent a balanced
report.
Other substantive exploration data · Other exploration data, if meaningful and material, should be · No other exploration data is reported here.
reported including (but not limited to): geological observations; geophysical
survey results; geochemical survey results; bulk samples - size and method of
treatment; metallurgical test results; bulk density, groundwater, geotechnical
and rock characteristics; potential deleterious or contaminating substances.
Further work · The nature and scale of planned further work (eg tests for lateral · RC infill and extension drilling is in progress and will be reported
extensions or depth extensions or large-scale step-out drilling). separately when all results are to hand. It is intended that a revised
mineral resource estimate will be undertaken once all results are to hand.
· Diagrams clearly highlighting the areas of possible extensions,
including the main geological interpretations and future drilling areas,
provided this information is not commercially sensitive.
Attachment 1: Complete drilling data Table
Hole No. Easting (GDA94 Z56) Northing (GDA94 Z56) Elevation (m) Dip (°) Azimuth (° True) Total Depth (m) From (m) To (m) Interval (m) Estimated True Width (m) Grade (% Sn)
TWINS
TMTADD001 358299.0 6747801.4 874.8 -49.5 147.2 155.4 51 72 21 14 0.11
113 137 24 15 0.40
TMTADD002 358190.7 6747688.9 867.5 -35.0 145.6 89.1 53 80 27 22 0.14
TMTADD003 359195.1 6748226.1 928.8 -38.8 144.7 119.7 54 112 58 45 0.10
TMTADD004 359259.6 6748303.0 891.8 -32.8 146.6 190 19 37 18 15 0.08
60 102 42 35 0.08
108 171 63 53 0.13
TMTADD005 359811.9 6748651.3 912.7 -46.9 147.2 183.4 69 115 46 31 0.15
122 156 34 23 0.07
TMTADD006 358614.2 6747874.5 897.5 -37.5 324.8 135.1 8 38.6 30.6 24 0.18
46 55 9 7 0.06
85 104 19 15 0.11
TMTADD007 358488.7 6747797.9 892.1 -28.4 328.3 122.4 1.3 33 31.9 28 0.14
66 83 17 15 0.16
TMTADD008 358538.1 6747599.2 832.2 -49.9 324.2 95.6 65 87 22 14 0.18
TMTADD009 358634.2 6747679.9 846.5 -49.6 324.4 89.8 41 58 17 11 0.39
TMTADD010 358314.8 6747523.6 858.1 -44.8 324.7 77.5 38 68 30 21 0.19
TMTADD011 359621.5 6748317.1 948.6 -60.6 323.9 119.9 8 120 112 55 0.14
incl. 8 67 59 29 0.19
TMTADD012 359798.7 6748585.7 918.5 -55.0 144.1 110.2 13 110.2 97.2 56 0.13
TMTADD013 359681.7 6748407.3 902.2 -54.8 136.4 131 10 29 19 11 0.08
34 87 53 31 0.21
TMTARC013 358469.3 6747663.6 855.5 -59.8 331.6 131 0 13 13 7 0.17
20 32 12 6 0.05
TMTARC016 358731.3 6748020.5 935.2 -60.3 146.0 105 34 73 39 20 0.16
83 91 8 4 0.12
TMTARC017A 358616.2 6747964.5 934.9 -60.0 146.0 41.0 abandoned
TMTARC017 358619.9 6747966.9 935.0 -60.4 146.1 156 7 48 41 21 0.10
incl. 7 29 22 11 0.13
77 128 51 26 0.18
TMTARC018 359335.6 6748190.1 941.3 -59.9 318.0 150 9 96 88 44 0.13
TMTARC020 359522.0 6748287.1 962.4 -60.4 326.4 145 1 126 125 63 0.20
EXT/INFILL PHASE 1
TMTARC001 358010.8 6747470.4 849.7 -58.3 323.0 150.0 24 26 2 1 0.09
38 43 5 2 0.06
TMTARC002 357938.5 6747407.1 848.7 -60.1 326.0 150.0 1 3 2 1 0.07
76 82 6 3 0.07
86 89 3 1 0.07
TMTARC003 357960.0 6747368.8 843.3 -60.9 322.0 150.0 0 41 41 20 0.20
incl. 0 25 25 12 0.27
and 31 36 5 2 0.13
TMTARC004 357847.1 6747353.6 849.9 -60.3 321.0 150.0 nsi
TMTARC005 358139.0 6747515.1 858.8 -60.8 323.0 150.0 62 66 4 2 0.17
79 84 5 2 0.31
143 145 2 1 0.14
TMTARC006 358045.7 6747426.3 835.1 -61.3 324.0 150.0 0 19 19 9 0.20
23 27 4 2 0.14
31 40 9 4 0.08
54 57 3 1 0.12
62 64 2 1 0.14
TMTARC007 357999.7 6747326.9 828.7 -61.8 319.0 150.0 133 137 4 2 0.41
TMTARC008 358068.2 6747383.9 820.7 -61.8 325.0 150.0 82 87 5 2 0.06
97 103 6 2 0.11
118 150 32 16 0.28
incl. 121 138 17 9 0.37
TMTARC009 357900.3 6747283.6 826.8 -60.0 323.0 150.0 89 88 3 1 0.09
109 142 33 13 0.18
incl. 127 142 15 6 0.23
TMTARC010 357892.5 6747315.6 837.9 -60.0 318.0 150.0 5 61 56 17 0.12
incl. 6 22 16 4 0.16
TMTARC011 357982.2 6747511.0 848.0 -60.1 155.0 150.0 57 61 4 2 0.11
87 93 6 3 0.07
TMTARC012 358202.9 6747421.7 829.8 -59.6 324.0 157.0 nsi
EXT/INFILL PHASE 2
TMTARC014 359030.2 6747992.8 876.7 -60.5 325.0 31.0 abandoned
TMTARC014a 359025.7 6747994.7 876.8 -60.5 325.0 24.0 abandoned
TMTARC014b 359024.8 6747996.7 877.1 -60.5 325.0 21.0 abandoned
TMTARC015 358918.5 6747967.6 861.9 -59.5 322.0 150.0 24.0 35.0 11.0 6 0.20
incl. 24.0 29.0 5.0 3 0.34
70.0 72.0 2.0 1 0.13
91.0 96.0 5.0 3 0.15
115.0 129.0 14.0 7 0.09
incl. 115.0 118.0 3.0 2 0.19
TMTARC019 358842.4 6747848.6 861.0 -60.4 325.0 150.0 nsi
TMTARC021 357967.6 6747440.1 845.8 -60.5 144.0 121.0 63.0 98.0 35.0 22 0.20
incl. 82.0 97.0 15.0 9 0.35
TMTARC022 357885.2 6747382.9 854.6 -60.2 143.0 110 60.0 109.0 49.0 23 0.12
incl. 69.0 97.0 28.0 13 0.17
TMTARC023 357945.1 6747395.1 847.7 -59.9 143.0 100 10.0 16.0 6.0 3 0.05
22.0 30.0 8.0 5 0.08
33.0 58.0 25.0 15 0.20
incl. 37.0 51.0 14.0 8 0.25
73.0 82.0 9.0 5 0.12
TMTARC024 357985.9 6747430.1 843.0 -59.8 144.0 80 41.0 78.0 37.0 23 0.15
incl. 53.0 64.0 11.0 7 0.35
TMTARC025 357809.1 6747318.6 843.7 -60.1 143.0 110 41.0 80.0 39.0 25 0.10
incl. 72.0 79.0 7.0 4 0.15
TMTARC026 357821.5 6747299.2 838.7 -60.3 143.0 60 8.0 37.0 29.0 19 0.14
incl. 13.0 32.0 19.0 9 0.15
TMTARC027 357908.3 6747363.1 851.5 -60.3 143.0 70 10.0 68.0 58.0 30 0.11
incl. 20.0 51.0 31.0 16 0.15
TMTARC028 358061.5 6747408.3 827.6 -60.1 323.0 109 0.0 39.0 39.0 10 0.15
incl. 15.0 23.0 8.0 3 0.51
46.0 83.0 37.0 12 0.16
incl. 55.0 76.0 21.0 7 0.21
94.0 107.0 13.0 4 0.08
TMTARC029 358126.1 6747435.5 834.8 -60.3 324.0 79 37.0 60.0 23.0 12 0.19
incl. 41.0 58.0 17.0 8 0.24
65.0 79.0 14.0 7 0.09
TMTARC030 358111.9 6747418.3 832.0 -60.3 323.0 80 63.0 80.0 17.0 9 0.19
incl. 66.0 72.0 6.0 3 0.42
TMTARC031 358181.2 6747454.1 837.6 -59.7 144.0 100 0.0 2.0 2.0 1 0.07
29.0 30.0 1.0 1 0.15
TMTARC032 358142.6 6747413.8 826.0 -60.0 324.0 103 nsi
TMTARC033 358092.3 6747444.3 839.9 -59.9 323.0 80 2.0 47.0 45.0 27 0.13
incl. 38.0 47.0 9.0 0.22
TMTARC034 358077.0 6747467.8 847.3 -60.1 324.0 80 18.0 22.0 4.0 2 0.05
71.0 80.0 9.0 4 0.07
TMTARC035 358125.0 6747537.4 866.1 -59.9 324.0 80 0.0 30.0 30.0 14 0.06
42.0 46.0 4.0 2 0.12
50.0 77.0 27.0 13 0.14
incl. 65.0 77.0 12.0 6 0.23
TMTARC036 359054.1 6748213.4 944.2 -60.2 324.0 50 48.0 50.0 2.0 1 0.07
TMTARC037 359112.1 6748138.2 936.4 -59.8 324.0 50 0.0 15.0 15.0 7 0.17
incl. 0.0 9.0 9.0 4 0.25
TMTARC038 359086.4 6748160.1 938.5 -60.1 324.0 50 0.0 5.0 5.0 2 0.07
TMTARC039 359123.2 6748111.7 927.3 -59.9 324.0 50 0.0 22.0 22.0 11 0.09
43.0 50.0 7.0 3 0.06
TMTARC040 359137.8 6748088.4 919.6 -60.1 323.0 80 0.0 19.0 19.0 9 0.09
36.0 75.0 39.0 20 0.08
incl. 45.0 63.0 18.0 9 0.10
69.0 75.0 6.0 3 0.08
TMTARC041 359264.2 6748382.9 860.6 -59.5 143.0 80 11.0 70.0 59.0 30 0.12
incl. 19.0 43.0 24.0 12 0.16
TMTARC042 359863.2 6748499.5 938.6 -60.0 144.0 80 0.0 3.0 3.0 1 0.08
10.0 15.0 5.0 2 0.09
20.0 25.0 5.0 2 0.09
65.0 73.0 8.0 4 0.07
TMTARC043 359832.3 6748437.1 932.3 -60.2 143.0 50 5.0 10.0 5.0 3 0.09
18.0 29.0 11.0 6 0.19
incl. 20.0 28.0 8.0 4 0.23
32.0 41.0 9.0 5 0.17
incl. 34.0 41.0 7.0 4 0.19
This information is provided by RNS, the news service of the London Stock Exchange. RNS is approved by the Financial Conduct Authority to act as a Primary Information Provider in the United Kingdom. Terms and conditions relating to the use and distribution of this information may apply. For further information, please contact
rns@lseg.com (mailto:rns@lseg.com)
or visit
www.rns.com (http://www.rns.com/)
.
RNS may use your IP address to confirm compliance with the terms and conditions, to analyse how you engage with the information contained in this communication, and to share such analysis on an anonymised basis with others as part of our commercial services. For further information about how RNS and the London Stock Exchange use the personal data you provide us, please see our
Privacy Policy (https://www.lseg.com/privacy-and-cookie-policy)
. END DRLNKDBQOBKDAADRecent news on First Tin
See all newsREG - First Tin PLC - Auersberg & Gottesberg Project Exploration Update
AnnouncementREG - First Tin PLC - Holding(s) in Company
AnnouncementREG - First Tin PLC - Director/PDMR dealing
AnnouncementREG - First Tin PLC - Director/PDMR dealing
AnnouncementREG - First Tin PLC - Director/PDMR dealing
Announcement