Birimian Limited: Erweiterung der hochgradigen Lithiumlagerstätte Goulamina

Mittwoch, 15.03.2017 08:20 von IRW-Press

Birimian Limited: Erweiterung der hochgradigen Lithiumlagerstätte Goulamina

- Aktualisierte Mineralressource Goulamina;
- 27,8 Mio. Tonnen mit 1,42 % Li2O (393.000 t enthaltenes Li2O)

- Vorläufige Ressourcenschätzung bestätigt beachtliche hochgradige oberflächennahe Erweiterung der Projektressourcen.

- Hochstufung der Ressourcenkategorien und weitere Ressourcenerweiterung werden nach Hinzunahme der noch ausstehenden Bohrergebnisse Anfang Mai 2017 erwartet.

- Ausgezeichnetes Potenzial um signifikante Tonnagen an in geringer Tiefe lagernder hochgradiger Lithiumvererzung durch weitere Bohrungen hinzuzufügen.

- Vormachbarkeitsstudie im Zeitplan für Abschluss im Juniquartal 2017.

Birimian Limited (ASX: BGS) (Birimian oder das Unternehmen -- http://www.commodity-tv.net/c/mid,2697,Company_Presentation/?v=297188) berichtet eine Aktualisierung der Mineralressourcenschätzung für die Lagerstätte Goulamina auf ihrem Lithiumprojekt Bougouni in Mali.

Die Mineralressource auf Goulamina umfasst jetzt 27,8 Mio. Tonnen mit 1,42 % Li2O für 393.000 Tonnen enthaltenes Li2O (Tabelle 1). Dies ist beinahe eine Verdopplung der früheren Schätzung des enthaltenen Lithiums und bestätigt weiter, dass Goulamina heute eine der weltweit höchst gradigsten Lithiumlagerstätten von signifikanter Größe in Festgestein ist.

Birimians Managing Director Kevin Joyce äußerte sich zu diesem Meilenstein: Die jüngste Ressourcenschätzung ist ein herausragendes Ergebnis, das die Erweiterungen der Vererzung der West Zone und die neue Entdeckung in der Sangar Zone einschließt. Die Kombination dieser erweiterten Ressourcen mit den erwarteten Hochstufungen der Ressourcenkategorien in der nahen Zukunft wird die Vormachbarkeitsstudie auf dem Projekt unterstützen, die zurzeit durchgeführt wird.

Die gegenwärtigen Ressourcen liegen weit über unseren anfänglichen Erwartungen und übertreffen jetzt das ursprüngliche Explorationsziel des Unternehmens für enthaltenes Lithium. Entscheidend ist, dass ein signifikantes Potenzial für eine weitere Ausdehnung der Ressource Goulamina besteht.

Birimian hat einen soliden Barmittelbestand mit ausreichend Kapital zur Finanzierung von Entwicklungsaktivitäten bis zum Abschluss der Vormachbarkeitsstudie auf dem Projekt, der im Juniquartal erwartet wird.

Mineralressourcenschätzung

Cube Consulting (Cube) wurde zur Durchführung einer Mineralressourcenschätzung für die Lagerstätte Goulamina beauftragt. Diese Schätzung schließt jetzt Erweiterungen der West Zone und die vor Kurzem entdeckte Sangar Zone im Südwesten ein.

Detaillierte Informationen hinsichtlich der Daten, Qualitätskontrolle und Schätzungsmethodik sind in Anhang 1 - JORC Tabelle1, Abschnitte 1 bis 3 dokumentiert.

Die kombinierten Ressourcen, die in den Vertrauenskategorien angezeigt und geschlussfolgert geschätzt wurden, sind in Tabelle 1 zu sehen. Das Ressourcengebiet im Pegmatit der Main Zone wurde nicht neu modelliert und bleibt unverändert gegenüber der ersten Ressourcenschätzung (Pressemitteilung vom 27. Oktober 2016).

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Tabelle 1. Klassifizierungen der Mineralresource Goulamina

Birimian lieferte die Hauptinformationsquellen, die im Rahmen dieser Mineralressourcenschätzung verwendet wurden einschließlich Bohrungsdatensammlungen, eine topografische Oberfläche, Kartierungsinformationen und eine geologische Interpretation der vererzten Pegmatite. Zusätzliche 29 Bohrungen wurden in die aktualisierte Schätzung aufgenommen. Diese Bohrungen ergänzen die 51 Bohrungen, welche die Grundlage für das erste Ressourcenmodell bildeten.

Während der Ressourcenschätzung standen für ungefähr 65 Bohrungen die Analysenergebnisse noch aus und sie wurden nicht in die aktuelle Ressourcenschätzung aufgenommen. Diese Bohrungen schließen einige Erweiterungsbohrungen auf der Main und West Zone ein, sind aber zum größten Teil Infill-Bohrungen in Abständen von 25m, die zur Verbesserung des Vertrauens in die Geologie und die Ressource ausgelegt wurden. Eine weitere Ressourcenerweiterung und Hochstufungen der Ressourcenkategorien sind wahrscheinlich, wenn diese Bohrungen in eine nachfolgende Schätzung aufgenommen werden, die Anfang Mai erwartet wird.

Die Mineralressourcen wurden durch Rückspülbohrungen (Reverse Circulation, RC) und Kernbohrungen (Diamond Drilling, DD) abgegrenzt. Der Großteil der neuen Bohrungen, die in die Schätzung aufgenommen wurden, wurde in den Pegmatitzonen West und Sangar in Abständen von 50 m x 50 m niedergebracht. Diese Abstände sind zur Bestimmung der Kontinuität der Geologie und des Gehalts zur Ausweisung einer Ressource in der Kategorie geschlussfolgert angemessen.

Der Spodumen (Lithium) -Pegmatit auf Goulamina kommt als drei gut definierten im Allgemeinen parallelen und sehr kontinuierlichen Dykes (Intrusionsgänge) vor; Main Zone, West Zone und Sangar Zone (Abbildung 1, 2 und 3). Querschneidende vererzte Dykes, die in Aufschlüssen und in den Bohrungen identifiziert wurden, sind nicht so gut begrenzt und wurden zu diesem Zeitpunkt nicht in die klassifizierten Ressourcen eingeschlossen.

Vererzte Domänen für getrennte Pegmatit-Dykes wurden in Profilschnitten digitalisiert und dann als Drahtgitter dargestellt, um Festkörper zu generieren. Es besteht ein sehr starker Zusammenhang zwischen dem vererzten Teil der Pegmatit-Dykes und dem gesamten vererzten Dyke-Abschnitt. Nur sehr wenig Pegmatitmaterial hat keine signifikant erhöhten Lithiumgehalte. Folglich stimmen die Grenzen der Vererzung im Allgemeinen mit den lithologischen Grenzen der Dykes überein. Drahtgitter wurden zur Bestückung des Blockmodells und durch herkömmliches Kriging-Verfahren interpolierte Li2O-Gehalte verwendet.

Es wurde angenommen, dass die Ressource im Tagebauverfahren abgebaut wird, das von den konzeptionellen Bergbaustudien unterstützt wird. Die früheren metallurgischen Studien bieten eine ausreichende Basis für die Annahme hinsichtlich der metallurgischen Zugänglichkeit und der Bestimmung angemessener Perspektiven für eine eventuelle wirtschaftliche Extraktion.

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Abbildung 1. Goulamina-Lagerstätte. Planansicht des Lithium-Pegmatits mit Lage der Bohrungen

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Abbildung 2. Lagerstätte Goulamina - Profilschnitte Main Zone und West Zone.

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Abbildung 3. Lagerstätte Goulamina - Profilschnitt Sangar Zone

Goulamina - eine hochgradige Lithiumlagerstätte mit beträchtlichen Tonnagen

Die aktualisierte Ressourcenschätzung auf Goulamina bestätigt eine hochgradige Lithiumlagerstätte mit beträchtlichen Tonnagen.

Die Gehalt-Tonnage-Kurve für die aktualisierten geschlussfolgerten Ressourcen ist in Abbildung 4 zu sehen. Die Gesamtressource wird für einen Cut-off-Gehalt von 0% Li2O angegeben. Bei höheren Cut-off-Gehalten variieren die Tonnagen der Vererzung nicht beträchtlich, was den robusten Gehalt und die gute Kontinuität der modellierten Vererzung bestätigt. Die gesteigerte Ressourcentonnage hat zu einer geringen Abnahme des Ressourcengehalts geführt, aber das enthaltene Lithium beachtlich erhöht. Der Ressourcengehalt liegt weiterhin beachtlich über dem geschätzten Cut-Off-Gehalt für den Abbau von 0,82% Li2O (Pressemitteilung vom 13. März 2017). Die jüngste Ressourcenschätzung erfüllt Meilenstein Eins des Leistungsanreizplans des Managements.

Die Vererzung ist in allen drei Zonen weiterhin offen und im 250 Quadratkilometer großen Projektgebiet besteht hervorragendes ungenutztes Potenzial. Birimian ist weiterhin zuversichtlich, dass es den Lithiumbestand auf Goulamina im Laufe der weiteren Projektentwicklungsarbeiten kontinuierlich steigern wird.
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Abbildung 4. Goulamina West Zone Gehalt-Tonnage-Kurve..

Weitere Planung

Am 30. Januar 2017 hat Birimian bekannt gegeben, dass die Scoping-Studie für das Lithiumprojekt Bougouni das hervorragende Potenzial des Projekts bestätigt hat, weshalb nun eine Vormachbarkeitsstudie (PreFeasibility Study, PFS) durchgeführt werden soll. Die Ergebnisse der Scoping-Studie lassen darauf schließen, dass die Goulamina-Lagerstätte kostengünstig im Tagebauverfahren abgebaut und eine gestufte Aufbereitungsanlage geplant werden kann. Dabei profitiert man von niedrigen Verhältnissen Abraum:Erz, hochgradiger Vererzung an der Oberfläche und niedrigen Betriebskosten in Mali. Die PFS ist weiterhin im Zeitplan für eine Fertigstellung im Laufe des Juniquartals 2017.

Die Bohrarbeiten auf dem Projekt wurden kurz unterbrochen, da das Unternehmen für weitere detaillierte Arbeiten und andere technische Studien hinsichtlich der Ressourcenschätzung Analysenergebnisse erwartet. Angesichts des konstanten Fortschritts bei den jüngsten Bohrungen und der längeren Wartezeit bis zum Erhalt der Analysenergebnisse wird ein weiteres Update des Ressourcenmodells jetzt Anfang Mai erwartet. Laut Erwartungen wird diese Schätzung alle Ergebnisse der Infill-Bohrungen zur Unterstützung der signifikanten Hochstufungen der Ressourcenkategorien einschließen und die detaillierten Vormachbarkeitsstudien erleichtern.

Gleichzeitig zum laufenden Bohrprogramm arbeitet Birimian an weiteren Studien, um die PFS abschließen zu können. Die Strategie des Unternehmens ist die Beschleunigung der Entwicklung der zurzeit abgegrenzten Ressourcen auf dem Projekt Bougouni, statt größere Ressourcenerweiterungen durch Bohrungen anzuvisieren. Zurzeit wird die nächste Phase der Entwicklungsbohrungen geplant. Das Programm hat die folgenden Ziele:

- Weiteres Upgrade der Ressourcenkategorien.

- Bestätigung geotechnischer Parameter für die Planung einer Tagebaumine.

- Bestätigung von Standorten für Aufbereitungsanlage, damit verbundene Infrastruktur, Abraumhalde und Tailings-Lagerplatz.

Digby Wells Environmental (Digby Wells) hat die Feldarbeiten hinsichtlich der nächsten Phase der detaillierten Nachhaltigkeitsstudien auf dem Projekt und den weiteren Gemeindebereichen abgeschlossen. Dies ist von Wichtigkeit, da die Ergebnisse die laufenden technischen Studien und die Planung der Entwicklungsbohrungen erleichtern werden. Dadurch wird es Digby Wells möglich sein, die Terms of Reference for the Environmental and Social Impact Assessment (ESIA, Richtlinien für Umweltverträglichkeitsprüfung und Prüfung der sozialen Auswirkungen) zu erstellen. In diesem Stadium wird vorgeschlagen, die Richtlinien für das Projekt der Regierung Ende April vorzustellen. Dies signalisiert den formellen Beginn der ESIA für das Projekt und mündet im Genehmigungsprozess der Mine.

Birimian möchte die wirtschaftliche Nutzbarkeit von Bougouni beschleunigen. Folglich werden die nächsten wichtigen Meilensteine die metallurgischen Testarbeiten und eine aktualisierte Ressourcenschätzung sein. Das Unternehmen rechnet damit, dass sie Ende dieses Quartals verfügbar sein werden. Im Anschluss wird die Fertigstellung der PFS im Juniquartal 2017 erwartet. Dies wird es dem Unternehmen erlauben, die Projektfinanzierung und Abnahmeabkommen parallel zum Minengenehmigungsverfahren weiterzuverfolgen.

Für weitere Informationen kontaktieren Sie bitte:

Kevin Joyce
Managing Director
08 9286 3045
info@birimiangold.com

In Europa:
Swiss Resource Capital AG
Jochen Staiger
info@resource-capital.ch
www.resource.capital.ch

Erklärung der qualifizierten Personen

Die Informationen in dieser Meldung, die sich auf Explorationsergebnisse und das Explorationsziel beziehen, basieren auf Informationen, die von oder unter der Leitung von Kevin Anthony Joyce erstellt wurden. Herr Joyce ist Managing Director von Birimian Limited und ein Mitglied des Australian Institute of Geoscientists. Herr Joyce verfügt über ausreichende Erfahrung, die für diese Art von Vererzung und Lagerstätte sowie für seine Tätigkeiten erforderlich ist, um als qualifizierte Person gemäß der Ausgabe von 2012 des Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (JORC Code) definiert werden zu können. Herr Joyce erlaubt das Hinzufügen von Material zu diesem Bericht, das auf seinen Informationen basiert und in Form und Kontext erscheint.

Die Informationen in dieser Meldung, die sich auf Mineralressourcen beziehen, basieren auf Informationen, die von oder unter der Leitung von Matt Bampton erstellt wurden. Herr Bampton ist ein Mitglied des Australian Institute of Mining and Metallurgy und ein Mitglied des Australian Institute of Geoscientists. Herr Bampton ist ein Vollzeitbeschäftigter von Cube Consulting Pty Ltd. und verfügt über ausreichende Erfahrung, die für diese Art von Vererzung und Lagerstätte sowie für seine Tätigkeiten erforderlich ist, um als qualifizierte Person gemäß der Ausgabe von 2012 des Australasian Code for Reporting of Exploration Results definiert werden zu können. Herr Bampton erlaubt das Hinzufügen von Material zu diesem Bericht, das auf seinen Informationen basiert und in Form und Kontext erscheint.

Zuvor gemeldete Ergebnisse

Diese Meldung enthält Informationen hinsichtlich früherer Explorationsergebnisse beim Projekt Bougouni. Das Unternehmen bestätigt, dass keine anderen neuen Informationen oder Daten vorliegen, die sich erheblich auf die in der ursprünglichen Marktmitteilung enthaltenen Informationen auswirken könnten, und dass sich alle grundlegenden Annahmen und technischen Parameter nicht grundlegend geändert haben. Das Unternehmen bestätigt, dass die Form und der Kontext der enthaltenen Darbringung der Ergebnisse der Competent Person im Vergleich zur Marktmitteilung nicht grundlegend geändert wurden.

Zukunftsgerichtete Aussagen

Aussagen hinsichtlich Pläne in Zusammenhang mit den Mineralkonzessionsgebieten des Unternehmens sind zukunftsgerichtete Aussagen. Es kann keine Garantie abgegeben werden, dass die Pläne des Unternehmens hinsichtlich der Erschließung seiner Mineralkonzessionsgebiete wie erwartet umgesetzt werden können. Es kann keine Garantie abgegeben werden, dass das Unternehmen in der Lage sein wird, das Vorkommen von Minerallagerstätten zu bestätigen, dass sich eine Mineralisierung als wirtschaftlich herausstellen wird oder dass eine Mine in einem der Mineralkonzessionsgebiete des Unternehmens erschlossen werden kann.

Die Ausgangssprache (in der Regel Englisch), in der der Originaltext veröffentlicht wird, ist die offizielle, autorisierte und rechtsgültige Version. Diese Übersetzung wird zur besseren Verständigung mitgeliefert. Die deutschsprachige Fassung kann gekürzt oder zusammengefasst sein. Es wird keine Verantwortung oder Haftung: für den Inhalt, für die Richtigkeit, der Angemessenheit oder der Genauigkeit dieser Übersetzung übernommen. Aus Sicht des Übersetzers stellt die Meldung keine Kauf- oder Verkaufsempfehlung dar! Bitte beachten Sie die englische Originalmeldung auf www.sedar.com , www.sec.gov , www.asx.com.au/ oder auf der Firmenwebsite!


ASX Additional Information - Material Assumptions

The following is a summary of Material Information used to estimate the Mineral Resource as required by Listing Rule 5.8.1 and JORC 2012 Reporting Guidelines.

Mineral Tenement and Land Tenure Status

The deposit lies within the Torakoro Research Permit which is owned 100% by Timbuktu Ressources, a wholly owned Malian subsidiary of Birimian Limited. The mineral property is in good standing and there is no known impediment to obtaining a license to operate.

Geology

The project area is located within the Bougouni region of the southern Mali, where broadly north-south trending belts of Birimian-aged (Paleoproterozoic) metavolcanic and metasedimentary rocks are intruded by syn-and post-orogenic granitoids.

Within the Project area, outcrop is limited and basement geology is therefore poorly understood. Regolith typically comprises a surficial transported gravel horizon (locally termed Cuirasse) overlying a thin lateritic weathering profile. Mapping indicates NE-striking metapelite and metagreywacke rocks in the north and eastern parts of the property. The southern portion of the project area is dominated by granodiorite.

All pegmatite bodies contain anomalous or significant amounts of the mineral spodumene (a lithium-bearing pyroxene), along with the other major minerals of quartz and feldspar (albite and microcline); From the geological logging, there are also accessory amounts of muscovite, tourmaline, apatite, and biotite at the granite contacts.

Drilling Techniques and Hole Spacing

Holes were drilled in two phases, from May to September 2016, and December 2016 to February 2017. In total 80 holes inform the current resource estimate.

RC drilling was completed by Foraco Drilling and International Drilling Company (IDC), using nominally 5.5 diameter equipment, with a face sampling downhole hammer. The Foraco rig had an outboard compressor, with specifications of 1100CFM@350PSI. The IDC rig had an onboard compressor with specifications of 1150CFM@500PSI

Core drilling was completed using equipment supplied and operated by Foraco Drilling and IDC. All holes are standard HQ sized holes (core diameter 64mm). DD holes are a combination of some drilled from surface and some as diamond tails on RC holes (including extensions to previously drilled Phase 1 holes).

Sampling

All samples collected from the RC rig were collected at 1m downhole intervals. Samples were split into pre-numbered calico bags at the rig using a 3-stage riffle splitter yielding a sample of between 3 to 5 kilograms. In addition to the 1m sample, duplicate samples were taken every 20m downhole. Blanks and standards were inserted into the sample stream at a rate of 1:40 for Blanks, and 1:40 for Standards.

All data is documented in a sampling ledger, including hole number, date drilled, sample id, depths from and to, sample condition, sample type, percentage sample return and all certified standards blanks and duplicates.

Drill core was sawn in half along its long axis. One half of the drill core was taken for geochemical analysis. All samples were collected at 1m intervals down the hole. 100% core recoveries were typically achieved.

Sample Analysis

Sample preparation work was conducted in the ALS Laboratory in Ouagadougou, Burkina Faso. At the laboratory, samples were weighed, dried and crushed to -2mm in a jaw crusher. A 1.0kg split of the crushed sample was subsequently pulverised in a ring mill to achieve a nominal pulp particle size of 85% passing 75m. Sample sizes and laboratory preparation techniques are considered to be appropriate.

After pulverisation, sub-samples were sent to ALS Laboratory in Perth for assay. Analysis for lithium and a suite of other elements was undertaken by ICP-AES, after a sodium peroxide (Na2O2) fusion - ALS Method ME-ICP89. Some of the multi-element analysis uses a MS finish - ALS Method ME-MS91. This fusion technique is considered to be a total dissolution technique for lithium-bearing silicate minerals. Detection limits for lithium are 0.01-10%.

Estimation Methodology

Interpreted sections were wireframed using Surpac software to create 3D solids for each pegmatite domain within the resource area. The drillhole data was sliced on 50m spaced sections for modelling of the geology and the mineralised envelopes. Solids were constructed for 4 discreet pegmatite dykes, as well as for the near surface colluvium and lateritic material.

Mineralisation in the Main Zone and West Zone pegmatites was composited to 3m downhole intervals to reduce the variability inherent in raw samples or a smaller composite length relative to estimation resource model block dimensions.

Surpac software was used for the modelling and estimation, with SuperVisor software used to conduct geostatistical analysis. The main pegmatite domains in the block model were estimated using interpolation of grade via Ordinary Kriging (OK), which was considered to be an acceptable method given the strong geological control, the drilling density and the data distribution downhole.

A single block model was created by Cube with dimensions extended out to fully cover all of the mineralisation, plus surrounds that may be contained within pit optimisation shells. The parent block size used is 20mN x 20mE x 5mRL and sub-blocked to 1.25mN x 2.5mE x 2.5mRL.

Resource Classification

A range of criteria were considered by Cube when addressing the suitability of the classification boundaries. These criteria include:

- Geological continuity and volume;

- Drill spacing and drill data quality;

- Modelling technique; and

- Estimation properties including search strategy, number of informing composites, average distance of composites from blocks and kriging quality parameters.

Blocks have been classified as Indicated or Inferred, mostly based on drill data spacing in combination with kriging parameters.

Cut-off Grade

For the global resource estimation, no lower cutoff grade for reporting is used, as the model is essentially developed within a geological boundary, and the resource incorporates everything within the modelled pegmatite dykes.

Mining and Metallurgy

Conceptual mining studies are based on open cut mining methods using a contract mining fleet and conventional drill and blast mining methods. Limited inspection of core photography indicates that ground conditions are suitable for this mining method.

The resource has been trimmed by intersecting with a pit shell based on a Whittle optimisation at a revenue factor (USD$650/t for a nominal 6% Li2O concentrate). Material falling outside of this shell is considered to not meet reasonable prospects for eventual economic extraction. Reasonable prospects for eventual economic extraction have been determined with reference to the results of previous Whittle optimization studies, and the depth of the selected open pit shell (at a revenue factor of USD$650/t for a nominal 6% Li2O concentrate) was used as an analogy to help limit the depth for reporting the Sangar Zone.

The criteria for assumptions and predictions regarding metallurgical amenability - required to determine reasonable prospects for eventual economic extraction - are based on the bulk sampling and test program undertaken in 2008 by CSA Global (UK), work that was commissioned and funded by the World Bank as part of the SYSMIN economic development program. CSA Global undertook systematic sampling of outcropping material at Goulamina to collect a representative bulk sample comprising 3,150kg of material, which was subsequently crushed and split to 750kg for detailed processing test work. This work included evaluations of screen sizing to optimize spodumene (lithium) recoveries and preliminary dense media separation tests. The results of this study indicated good spodumene recoveries and a high mass yield, to produce a high quality chemical grade spodumene concentrate.


JORC Code, 2012 Edition - Table 1

Section 1 - Sampling Techniques and Data

CriteriJORC Code explanation Commentary
a

Samplin· Nature and quality of · Diamond Drill Core (DD)
g sampling and Reverse Circulation
techni ( (RC) chips are the two
ques eg cut channels, random main sample
chips, or specific types.
specialised industry
standard measurement · RC drill holes were
tools appropriate to the routinely sampled at 1m
minerals under intervals down the hole,
investigation, such as with samples collected at
down the drill rig by riffle
splitting drill spoils to
hole gamma sondes, or collect a nominal 2.5 -
handheld XRF instruments, 4kg sub sample, with an
additional 50% split for
etc). These examples material > 5
should not be taken as kg.
limiting the broad
meaning of · Routine standard
sampling. reference material, sample
blanks, and sample
· Include reference to duplicates were inserted
measures taken to ensure or collected at every 10th
sample sample in the sample
sequence for RC drill
representivity and the holes.
appropriate calibration
of any measurement tools · Nominal 2.5kg sub samples
or systems were collected from half
used. sawn HQ sized diamond
drill core, routinely
· Aspects of the sampled at 1m intervals
determination of down the
mineralisation that are hole.
Material to the Public
Report. · Routine standard
reference material and
· In cases where industry sample blanks were
standard work has been inserted/collected at
done this would be every 20th sample in the
relatively simple sample sequence for DD
( drill
eg reverse circulation holes.
drilling was used to
obtain 1 m samples from · All samples were
which 3 kg was pulverised submitted to ALS Bamako
to produce a 30 g charge and subsequently forwarded
for fire assay). In to ALS Ouagadougou for
other cases more preparation. Analysis was
explanation may be undertaken at ALS Perth by
required, such as where method
there is coarse gold that ME-ICP89
has inherent sampling
problems. Unusual
commodities or
mineralisation types
(
eg submarine nodules) may
warrant disclosure of
detailed
information.

Drillin· Drill type (eg core, · Drill holes were
g reverse circulation, generally angled at -60°
techni open-hole hammer, rotary towards 270° (WGS84_29N
ques air blast, auger, Bangka, grid)
sonic,
· RC drilling equipment is
etc) and details (eg core nominally 5.5 diameter,
diameter, triple or with a face sampling down
standard tube, depth of
diamond tails, hole hammer.
face-sampling bit or · RC drilling was
other type, whether core undertaken using the
is oriented and if so, by following equipment -
what method,

etc). o Purpose built RC Rig (Fora
co
Drilling) with an outboard
compressor;
specifications of
1100CFM@350PSI


o Schramm 685 RC Rig (IDC Dr
illing) with an

onboardcompressor;
specifications of
1150
CFM@500PSI
· DD holes are standard
tube HQ sized holes (core
diameter
64mm)

· DD holes were drilled
using

the following equipment -
o Purpose built drill rig
supplied

and operated by Foraco Drill
ing

o KL900 rig supplied and
operated by IDC


o Atlas Copco CT14 rig suppl
ied

and operated by IDC
· DD holes are a
combination of some
drilled from surface
(lengths varied between
21m and 110m), and some as
diamond tails on RC holes
(lengths varied between
100m and
195m).

· Core Orientations were
performed with a Reflex
ACT II RD rapid descent
core orientation
tool

Drill · Method of recording and · A qualitative estimate of
sample assessing core and chip sample recovery was done
recove sample recoveries and for each sample metre
ry results collected from the drill
assessed. rig for RC
holes.
· Measures taken to
maximise sample recovery · Riffle split samples were
and ensure representative weighed to ensure
nature of the consistency of sample size
samples. and to monitor sample
recoveries.
· Whether a relationship
exists between sample · A quantitative measure of
recovery and grade and sample recovery was done
whether sample bias may for each run of drill core
have occurred due to for DD
preferential loss/gain of holes.
fine/coarse
material. · Drill sample recovery in
the DD holes approximates
100% in mineralised
zones.

· Overall, drill sample
recovery and quality is
considered to be adequate
for the RC drilling, and
is considered to be
excellent for the DD
holes.

· There is the possibility
of some low-level
contamination from the
drill bits and rods on
subsequent iron
assays.

Logging· Whether core and chip · All drill sample
samples have been intervals were
geologically and geologically logged by
Company
geotechnically logged to a Geologists.
level of detail to
support appropriate · Where appropriate,
Mineral Resource geological logging
estimation, mining recorded the abundance of
studies and metallurgical specific minerals, rock
studies. types and weathering using
a standardized logging
· Whether logging is system.
qualitative or
quantitative in nature. · For RC holes, a small
Core (or sample of washed drill
material was retained in
costean, channel, etc) chip trays for future
photography. reference and validation
of geological logging, and
· The total length and an additional 100g of
percentage of the drill material was
relevant intersections retained in plastic bags
logged. for the same
purpose.

· For DD holes, all core
was photo-graphed both Wet
and
Dry.

· For most holes, the
entire drill hole was
logged and sampled. Barren
granite away from the
pegmatite dykes was not
routinely
sampled.

Sub-sam· If core, whether cut or · RC 1m samples were riffle
pling sawn and whether quarter, split at the drill rig,
techni half or all core and routine field sample
ques taken. duplicates were taken to
and evaluate whether samples
sample· If non-core, whether were
prepar riffled, tube sampled, representative.
ation rotary split,
· Drill core was sawn in
etc and whether sampled half along its long axis.
wet or One half of the drill core
dry. was taken
for
· For all sample types, geochemical analysis. All
the nature, quality and samples were collected at
appropriateness of the 1m intervals down the
sample preparation hole.
technique.
· Sample preparation was
· Quality control undertaken by ALS
procedures adopted for Ouagadougou
all sub-sampling stages laboratory.
to maximise
· At the laboratory,
representivity of samples. samples were weighed,
· Measures taken to ensure dried and crushed to -2mm
that the sampling is in a jaw crusher. A 1.0kg
representative of the in split of the crushed
situ material collected, sample was pulverised in a
including for instance steel ring mill to achieve
results for field a nominal particle size of
duplicate/second-half 85% passing
sampling. 75m.

· Whether sample sizes are · Sample sizes and
appropriate to the grain laboratory preparation
size of the material techniques are considered
being to be appropriate for
sampled. lithium, but may have
introduced a small level
of contamination for iron
from the sample
preparation
equipment.

Quality· The nature, quality and · Analysis for lithium and
of appropriateness of the a suite of other elements
assay assaying and laboratory was undertaken at ALS
data procedures used and Perth by ICPAES after
and whether the technique is Sodium Peroxide Fusion.
labora considered partial or Detection limits for
tory total. lithium (0.01
tests -10%)
· For geophysical tools,
spectrometers, handheld · Sodium Peroxide fusion is
XRF instruments, considered a total assay
technique for
etc, the parameters used lithium
in determining the
analysis including · No geophysical tools or
instrument make and other non-assay instrument
model, reading times, types were used in the
calibrations factors analyses
applied and their reported.
derivation,
etc. · Review of routine
standard reference
· Nature of quality material and sample blanks
control procedures suggest there are no
adopted significant analytical
( bias or preparation errors
eg standards, blanks, in the reported
duplicates, external analyses.
laboratory checks) and
whether acceptable levels · Lithium assays for the RC
of accuracy field sample duplicates
( compare well with the
ie lack of bias) and original sample and are
precision have been consistent with the style
established. of mineralisation being
evaluated. The analyses
are considered to be
representative of the
geological zones which
were
sampled.

· No field duplicates were
taken for the DD program.


· Internal laboratory QAQC
checks are reported by the
laboratory, including
sizing analysis to monitor
preparation.

· Review of the internal
laboratory QAQC suggests
the laboratory is
performing within
acceptable
limits.

· No samples were analysed
at an umpire
lab.

Verific· The verification of · Drill hole data is
ation significant intersections compiled and digitally
of by either independent or captured by company
sampli alternative company geologists.
ng and personnel.
assayi · The compiled digital data
ng · The use of twinned holes. is verified and validated
· Documentation of primary by the Companys database
data, data entry consultant before loading
procedures, data into the drill
verification, data
storage (physical and hole database.
electronic) · No specific twin holes
protocols. were drilled.

· Discuss any adjustment
to assay · Reported results are
data. compiled by the Companys
database consultant and
the Managing
Director.

· There were no adjustments
to assay
data.

Locatio· Accuracy and quality of · Drill hole collars were
n of surveys used to locate set out in UTM grid
data drill holes (collar and WGS84_Zone29N
points down-hole surveys),
trenches, mine workings · Drill hole collars were
and other locations used positioned using hand held
in Mineral Resource GPS.
estimation.
· RC and DD holes are
· Specification of the routinely surveyed for
grid system orientation at
used. approximately 50m-spaced
intervals down the hole,
· Quality and adequacy of using the Reflex EZ-TRAC
topographic electronic multi-shot
control. system

· SRTM elevation data was
used to establish
topographic control where
appropriate.

· Locational accuracy at
collar and down the drill
hole is considered
appropriate for this stage
of resource
estimation.

Data · Data spacing for · The majority of drilling
spacin reporting of Exploration is at 50m x 50m centres,
g and Results. with deeper holes at 100m
distri x 50m spacing, and some
bution · Whether the data spacing minor infill to
and distribution is approximately 50m x 25m on
sufficient to establish selected
the degree of geological sections.
and grade continuity
appropriate for the · This spacing is adequate
Mineral Resource and Ore to determine the
Reserve estimation geological and grade
procedure(s) and continuity for reporting
classifications of Mineral
applied. Resources.

· Whether sample · Compositing to 3m lengths
compositing has been has been applied for the
applied. estimation of Mineral
Resources

Orienta· Whether the orientation · Mineralisation at Goulamin
tion of sampling achieves a
of unbiased sampling of outcrops at surface and
data possible structures and the steeply dipping
in the extent to which this geometry of mineralisation
relati is known, considering the is therefore
on to deposit well-defined.
geolog type.
ical · Drilling orientation has
struct· If the relationship not biased the
ure between the drilling sampling.
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 taken to · Samples are stored on
securi ensure sample site prior to road
ty security. transport by Company
personnel to the ALS
Laboratory in Bamako,
Mali.

· Chain of custody
procedures exist for the
transport of material
between ALS Laboratories
(Mali to Burkina Faso to
Perth).

Audits · The results of any · Cube Consulting undertook
or audits or reviews of a site visit during RC
review sampling techniques and drilling operations to
s data. review the sampling
techniques.

· There has been no
external audit or review
of the Companys sampling
techniques for diamond
drilling.

Section 2 - Reporting of Exploration Results

CriteriJORC Code explanation Commentary
a

Mineral· Type, reference · The reported results are
teneme name/number, location and from an area within the
nt and ownership including
land agreements or material Torakoro Permit, which is
tenure issues with third parties held 100% by Timbuktu
status such as joint ventures, Resources SARL, a Malian
partnerships, overriding subsidiary of
royalties, native title
interests, historical Birimian Limited
sites, wilderness or · Tenure is in good
national park and standing.
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.

Explora· Acknowledgment and · The area which is
tion appraisal of exploration presently covered by the
done by other
by parties. Torakoro Permit was
other explored intermittently by
partie government agencies in the
s period 1990 to 2008.
Exploration consisted of
soil sampling and mapping
for
gold.

· In 2007-2008 an
evaluation of the
commercial potential for
lithium at

Goulamina was undertaken by
CSA Global as part of the
SYSMIN 7 economic
development
program.

· CSA undertook mapping and
bulk sampling of the

Goulamina outcrop but did
not undertake drilling.
Bulk sampling and
preliminary processing

testwork confirmed the
viability of the pegmatite
at

Goulamina to produce a high
quality chemical grade
lithium
concentrate

Geology· Deposit type, geological · Pegmatite Hosted Lithium
setting and style of Deposits are the target
mineralisation. for exploration. This
style of mineralisation
typically forms as dykes
and sills intruding or in
proximity to granite host
rocks.

· Surficial geology within
the project area typically
consists of indurated
gravels forming plateaux,
and broad depositional
plains consisting of
colluvium and alluvial to
approximately 5m vertical
depth.

· Lateritic weathering is
common away from the

Goulamina deposit and in
the broader project
area.

Drill · A summary of all · All relevant data from
hole information material to 2016
Inform the understanding of the
ation exploration results and 2017 drilling programs
including a tabulation of has been previously
the following information released to the
for all Material drill market.
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 · In reporting Exploration · All relevant data from
aggreg Results, weighting 2016
ation averaging techniques,
method maximum and/or minimum and 2017 drilling programs
s grade truncations has been previously
( released to the
eg cutting of high grades) market.
and cut-off grades are
usually Material and
should be
stated.

· Where aggregate
intercepts incorporate
short lengths of high
grade results and longer
lengths of low grade
results, the procedure
used for such aggregation
should be stated and some
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 relationships are · All relevant data from
nship particularly important in 2016 and 2017 drilling
the reporting of
between Exploration programs has been
minera Results. previously released to the
lisatio market
n · If the geometry of the
widths mineralisation with
and respect to the drill
interc
ept hole angle is known, its
length nature should be
s 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).

Diagram· Appropriate maps and · All relevant data from
s sections (with scales) 2016
and tabulations of
intercepts should be and 2017 drilling programs
included for any has been previously
significant discovery released to the
being reported These market
should include, but not
be limited to a plan view
of drill hole collar
locations and appropriate
sectional
views.

Balance· Where comprehensive · All relevant data from
d reporting of all 2016
report Exploration Results is
ing not practicable, and 2017 drilling programs
representative reporting has been previously
of both low and high released to the market
grades and/or widths
should be practiced to
avoid misleading
reporting of Exploration
Results.

Other · Other exploration data, · Density measurements
substa if meaningful and taken by Archimedes Method
ntive material, should be (water displacement) of
explor reported including (but core samples
ation not limited to):
data geological observations; from 14 holes, all in unweat
geophysical survey hered
results; geochemical material.
survey results; bulk · Whole core and some half
samples - size and method core samples
of treatment; were
metallurgical test used for density
results; bulk density, measurements
groundwater, geotechnical , but neither coated nor
and rock characteristics; waxed.
potential deleterious or
contaminating · These measurements were
substances. used to determine the bulk
density for the Mineral
Resource.

· In addition to lithium
(as
Li
2O), all holes were assayed
for a multi-element suite
to evaluate the presence
of any potential
co-product or
contaminating
material.

Further· The nature and scale of · The Mineral Resource
work planned further work estimate will be used to
( support
eg tests for lateral
extensions or depth ongoing economic
extensions or large-scale assessments
step-out
drilling). of the key processing
parameters and estimate
· Diagrams clearly capital costs, which will
highlighting the areas of be used to define
possible extensions, subsequent phases of
including the main detailed work at the
geological
interpretations and Bougouni Li Project.
future drilling areas, · An environmental
provided this information consultancy
is not commercially
sensitive. has completed a preliminary
social and
enviro
nmental assessment, and is
currently undertaking the
next phase of detailed
site based surveys to
facilitate a mine
permitting
process.

Section 3 - Estimation and Reporting of Mineral Resources

Criteria JORC Code explanation Commentary
Database · Measures taken to · Drilling database is
integrit ensure that data has not maintained by
y been corrupted by, for
example, transcription Birimians database
or keying errors, consultant (Rock Solid
between its initial Data Consultancy) in
collection and its use
for Mineral Resource Datashed software, look-up
estimation tables and fixed
purposes. formatting are used for
entering logging, spatial
· Data validation and sampling data for the
procedures deposit databases. Sample
used. numbers are uniquely coded
and pre-numbered bags
used. Data transfer for
downhole survey and
assaying information is
electronic via email.
These and other workflow
methods minimise the
potential of errors.


· Cube received data
directly exported from

Datashed in MS Access format
, then completed validation
checks on the database
comparing maximum hole
depths checks on all data,
duplicate numbering,
missing data, and interval
error checks using
validation rules in MS
Excel before importing
records into MS Access.
Cube then verified the
data using visual
inspection of the

drillholes in Surpac v6.7,
in 3D to identify
inconsistencies of drill

hole traces.
Site · Comment on any site · Matt Bampton (Senior
visits visits undertaken by the Consultant - Cube
Competent Person and the Consulting) who is the
outcome of those Competent Person,
visits. conducted a site visit in
May 2016, during which
· If no site visits have time he inspected the
been undertaken indicate Project area including RC
why this is the drilling, sampling and
case. sample despatch for the
receiving laboratory.
Notes and photographs were
taken along with
discussions with site
personnel regarding
geology and mineralisation
of the deposits,
procedures, sampling and
database procedures, and
Quality Control
procedures. No major
issues were
encountered.

Geologica· Confidence in (or · The confidence in the
l conversely, the geological interpretation
interpre uncertainty of Main Zone and West Zone
tation of the
of ) the geological
interpretation of the Goulamina Pegmatites is
mineral good as a result of the
deposit. consistency of intercepts
in RC and diamond core
· Nature of the data used drilling programs, and
and of any assumptions their correlation to the
made. surface outcrops and
sub-crops of
· The effect, if any, of
alternative spodumene-rich pegmatites.
interpretations on · There is a very strong
Mineral Resource correlation between the
estimation. mineralised portion of the
pegmatite dykes and the
· The use of geology in total dyke intercept.
guiding and controlling Very little pegmatite
Mineral Resource material is not
estimation. significantly elevated in
lithium content; thus the
· The factors affecting mineralisation boundaries
continuity both of grade generally match the
and lithological boundaries of
geology. the
dykes.

· The confidence in the
geological interpretation
of the

Sangar Zone of the Goulamina
Pegmatites is lower, as
the minor surface outcrop
and sub-crop is supported
by only 6 drill-hole
intercepts. This
confidence is reflected in
the resource
classification.

Dimension· The extent and · The Goulamina Mineral
s variability of the Resource area has
Mineral Resource dimensions of 900m (strike
expressed as length length) in three main
(along strike or dykes up to 70m (true
otherwise), plan width, width) and 225m (below
and depth below surface surface). The maximum
to the upper and lower depth known to date for
limits of the Mineral the deepest mineralisation
Resource. is 195m below the surface.


Estimatio· The nature and · The block model was
n and appropriateness of the constructed using
modellin estimation technique(s) interpolation of grade via
g applied and key Ordinary Kriging (OK),
techniqu assumptions, including with an Inverse Distance
es treatment of extreme method used as an internal
grade values, check; a global model was
considered to be
domaining, interpolation appropriate for the
parameters and maximum purpose of the
distance of model.
extrapolation from data
points. If a computer · High grade values were
assisted estimation reviewed, but it was
method was chosen considered that
include a description of application of top-cuts
computer software and was not
parameters required.
used.
· Mineralised domains for 6
· The availability of separate pegmatite dykes
check estimates, were digitised in
previous estimates cross-section using 3D
and/or mine production strings and then
records and whether the
Mineral Resource wireframed to generate
estimate takes solids. These were a
appropriate account of subset of lithological
such wireframes of these
data. pegmatite
dykes.
· The assumptions made
regarding recovery of · Drillhole sample data was
by-products. flagged using domain codes
generated from three
· Estimation of dimensional mineralisation
deleterious elements or domains and oxidation
other non-grade surfaces. Sample data was
variables of economic composited to three metre
significance downhole lengths using a
( best
eg sulphur for acid mine fit-method.
drainage
characterisation). · Interpolation parameters
were set to a minimum
· In the case of block number of 12 composites
model interpolation, the and a maximum number of 24
block size in relation composites for the
to the average sample estimate. A maximum search
spacing and the search ellipse of 150m was used
employed. for estimation runs in the
reportable resource, with
· Any assumptions behind the orientation altered
modelling of selective dynamically to reflect the
mining change in orientation of
units. the West Zone pegmatite
domain.
· Any assumptions about
correlation between
variables. · Computer software used
for the modelling and
· Description of how the estimation was
geological
interpretation was used Surpac v6.7, with SuperVisor
to control the resource software used to conduct
estimates. geostatistical and

· Discussion of basis for variographic analysis.
using or not using grade · No by-product recoveries
cutting or were considered;
capping. Fe
2O3 was estimated, as an
· The process of element of potential
validation, the checking interest in terms of a
process used, the future
comparison of model data
to drill hole data, and spodumene concentrate.
use of reconciliation · The parent block size
data if used is 20mN x 20m E x 5m
available. RL and sub-blocked to
1.25mN x 2.5mE x 2.5mRL.
The bulk of the drilling
data was on 50m x 50m
spaced sections, with
limited infill to 25m x
25m spaced sections.


· No assumptions of
selective mining units
were
made.

· The mineralised domains
acted as a hard boundary
to control the Mineral
Resource
estimate.

· Block model validation
was conducted by the
following
means:

· Visual inspection of
block model estimation in
relation to raw drill data
on a section by section
basis.

· Volumetric comparison of
the wireframe/solid volume
to that of the block model
volume for each
domain.

· A global statistical
comparisons of input and
block grades, and local
composite grade (by
northing and RL)
relationship plots (swath
plots), to the block model
estimated grade for each
domain.

· Comparison of the
(de-clustered) cut grade
drill

hole composites with the
block model grades for
each lode domain in
3D.

· No mining has taken place
and therefore no
reconciliation data is
available.


Moisture · Whether the tonnages · The tonnages are
are estimated on a dry estimated on a dry
basis or with natural basis.
moisture, and the method
of determination of the
moisture
content.

Cut-off · The basis of the · Cut-off grade for
paramete adopted cut-off grade(s) reporting is 0.0%
rs or quality parameters Li
applied. 2O, reflecting the global
nature of the resource,
the grade-tonnage
relationships, and a
potential bulk mining
scenario based on the
lithological contacts.


Mining · Assumptions made · The previous preliminary
factors regarding possible mining studies are based
or mining methods, minimum on open cut mining methods
assumpti mining dimensions and using a contract mining
ons internal (or, if fleet and conventional
applicable, external) drill and blast mining
mining dilution. It is methods.
always necessary as part
of the process of · These studies have been
determining reasonable used to generate an open
prospects for eventual pit shell to limit the
economic extraction to material in the block
consider potential model to that component
mining methods, but the which is considered to
assumptions made have reasonable prospects
regarding mining methods for eventual economic
and parameters when extraction.
estimating Mineral
Resources may not always · The depth of this open
be rigorous. Where this pit shell was used as an
is the case, this should analogy to help limit the
be reported with an depth for reporting the
explanation of the basis
of the mining Sangar Zone.
assumptions
made.

Metallurg· The basis for · In 2007-2008 CSA
ical assumptions or undertook mapping and bulk
factors predictions regarding sampling of the
or metallurgical
assumpti amenability. It is Goulamina outcrop but did
ons always necessary as part not undertake
of the process of drilling.
determining reasonable
prospects for eventual · They collected a
economic extraction to representative bulk sample
consider potential comprising 3,150kg of
metallurgical methods, material, which was
but the assumptions subsequently crushed and
regarding metallurgical split to 750kg for
treatment processes and detailed processing test
parameters made when work.
reporting Mineral
Resources may not always · This work included
be rigorous. Where this evaluations of screen
is the case, this should sizing to optimize
be reported with an
explanation of the basis spodumene (lithium)
of the metallurgical recoveries and preliminary
assumptions dense media separation
made. tests.

· The results of this study
indicated good

spodumene recoveries and a
high mass yield, to

produce a high quality
chemic
al grade spodumene concentr
ate.

Environme· Assumptions made · A social and
ntal regarding possible waste environmental screening
factors and process residue assessment for areas
or disposal options. It is around the potential mine
assumpti always necessary as part and processing site at
ons of the process of
determining reasonable Goulamina has been
prospects for eventual undertaken by an
economic extraction to established environmental
consider the potential consultancy.
environmental impacts of
the mining and · No major social or
processing operation. environmental impediments
While at this stage the were
determination of foreseen.
potential environmental
impacts, particularly · An environmental
for a consultancy has been
engaged to plan and
greenfields project, may undertake more detailed
not always be well baseline monitoring
advanced, the status of studies, and to commence a
early consideration of formal Environmental and
these potential social Assessment to
environmental impacts support the
should be reported. Project.
Where these aspects have
not been considered this · No specific assumptions
should be reported with have been made regarding
an explanation of the possible waste and process
environmental residue disposal
assumptions options.
made.

Bulk · Whether assumed or · Bulk density
density determined. If assumed, determination for
the basis for the
assumptions. If unweathered material is
determined, the method derived from an analysis
used, whether wet or of dry density
dry, the frequency of measurements of drill core
the measurements, the from 14 diamond holes.
nature, size and
representativeness of
the · Whole core was used, but
samples. neither coated nor waxed.
The risk of not using a
· The bulk density for method which adequately
bulk material must have accounts for potential
been measured by methods void spaces is considered
that adequately account to be low in both the
for void spaces pegmatites and granitic
( rocks.
vugs, porosity, etc),
moisture and differences · In weathered material
between rock and (including minor
alteration zones within transported colluvium and
the
deposit. in-situ laterite), bulk
density was assumed, based
· Discuss assumptions for on data from other
bulk density estimates equivalent granite-hosted
used in the evaluation deposits.
process of the different
materials. · Bulk density was assigned
within the block model
attribute density
according to the
weathering profiles and
rock types.


Classific· The basis for the · Blocks have been
ation classification of the classified as Indicated or
Mineral Resources into Inferred, based on a
varying confidence combination of data
categories. spacing, interpolation
metadata (number of
· Whether appropriate composites used,
account has been taken conditional bias slope,
of all relevant factors
(i.e. relative kriging variance) and
confidence in geological understanding.
tonnage/grade Indicated Mineral
estimations, reliability Resources are defined
of input data, nominally on 50m x 50m to
confidence in continuity 50m x 25m spaced drilling
of geology and metal within the Main Zone
values, quality, pegmatite. Inferred
quantity and Mineral Resources are in
distribution of the part defined by data
data). density greater than 50m x
50m spaced drilling within
· Whether the result the Main Zone pegmatite,
appropriately reflects and for the bulk of the
the Competent Persons West Zone and
view of the
deposit. Sangar pegmatites.
· The Mineral Resource
estimate appropriately
reflects the Competent
Persons view of the
deposit.


Audits · The results of any · Whilst Mr. Bampton
or audits or reviews of (Competent Person) is
reviews Mineral Resource considered to be
estimates. independent of

Birimian, no third party
reviews have as yet been
completed on this Mineral
Resource

Discussio· Where appropriate a · The relative accuracy of
n of statement of the the Mineral Resource
relative relative accuracy and estimate is reflected in
accuracy confidence level in the the reporting of the
/ Mineral Resource Mineral Resource in
confiden estimate using an accordance with the
ce approach or procedure guidelines of the 2012
deemed appropriate by JORC
the Competent Person. Code.
For example, the
application of · The statement relates to
statistical or global estimates of tonnes
geostatistical and grade.
procedures to quantify
the relative accuracy of
the resource within
stated confidence
limits, or, if such an
approach is not deemed
appropriate, a
qualitative discussion
of the factors that
could affect the
relative accuracy and
confidence of the
estimate.

· The statement should
specify whether it
relates to global or
local estimates, and, if
local, state the

relevant tonnages, which
should be relevant to
technical and economic
evaluation.
Documentation should
include assumptions made
and the procedures
used.

· These statements of
relative accuracy and
confidence of the
estimate should be
compared with production
data, where
available.