TABUAÇO

Transcription

TABUAÇO

TUNGSTEN
MINERALIZATION
IN PORTUGAL
THE CASE
OF THE
SÃO PEDRO DAS ÁGUIAS
DEPOSIT (TABUAÇO)
TUNGSTEN IN PORTUGAL – S. PEDRO DAS ÁGUIAS (TABUAÇO)
Cautionary Statement Disclaimer
This document has been prepared by Colt Resources Inc. (the “Company”) solely for presentation on December 4th, 2013, at the “Mineral Resource Assessment
Workshop: Assessment of the tungsten potential in Greenland”, Copenhagen. This document does not constitute an offering document. This document is the sole
responsibility of the Company. Information contained herein does not purport to be complete and is subject to certain qualifications and assumptions and should not be
relied upon for the purpose of making an investment in the Company’s securities or entering into any transaction in relation therewith. The information and opinions
contained in this document are provided as at the date hereof and are subject to change without notice and, in furnishing this document, the Company does not
undertake or agree to any obligation to provide recipients with access to any additional information or to update or correct the document. No securities commission or
similar regulatory authority has passed on the merits of any securities referred to in this document, nor has it reviewed this document.
Forward Looking Information
Certain of the information contained in this presentation may contain “forward-looking information”. Forward-looking information and statements may include, among
others, statements regarding the future plans, costs, objectives or performance of the Company, or the assumptions underlying any of the foregoing. In this presentation,
words such as “may”, “would”, “could”, “will”, “likely”, “believe”, “expect”, “anticipate”, “intend”, “plan”, “estimate” and similar words and the negative form thereof are used
to identify forward-looking statements. Forward-looking statements should not be read as guarantees of future performance or results, and will not necessarily be
accurate indications of whether, or the times at or by which, such future performance will be achieved. Forward-looking statements and information are based on
information available at the time and/or management’s good-faith belief with respect to future events and are subject to known or unknown risks, uncertainties,
assumptions and other unpredictable factors, many of which are beyond the Company’s control. These risks, uncertainties and assumptions include, but are not limited
to, those described under “Risk Factors” in the Company’s revised annual information form dated February 8, 2013 available on SEDAR at www.sedar.com and could
cause actual events or results to differ materially from those projected in any forward-looking statements. The Company does not intend, nor does the Company
undertake any obligation, to update or revise any forward-looking information or statements contained in this presentation to reflect subsequent information, events or
circumstances or otherwise, except if required by applicable laws.
National Instrument 43-101
Technical and scientific information contained in this document relating to the Company’s projects in Portugal is derived from the following National Instrument 43-101
Standards of Disclosure for Mineral Projects (“NI 43-101”) compliant technical reports: “A Preliminary Economic Assessment on the Tabuaço Tungsten Project” dated
October 1, 2013, “A Preliminary Economic Assessment on the Boa Fe Gold Project, Portugal”, dated May 7, 2013, the “NI 43-101 Technical Report, Boa Fé/Montemor
Gold Project”, dated March 4th, 2013, the “Tabuaco Tungsten Project, Portugal. NI 43-101 Technical Report”, dated November 15th, 2012, the “NI 43-101 Technical
Report Boa Fé/Montemor Gold Project Alentejo Region of Southern Portugal” dated August 16th, 2012, the “NI 43-101 Technical Report Boa Fé/Montemor Gold Project
Alentejo Region of Southern Portugal” dated December 21, 2011, the “NI 43-101 Technical Report on Exploration, Montemor Gold Project, Alentejo Region of Southern
Portugal” dated March 4, 2011, the “Technical Report (NI 43-101) on the Armamar Meda Concession, Northern Portugal” dated September 6, 2010 and the “Technical
Report (NI 43-101) on the Penedono Gold Concession, Northern Portugal” dated August 27, 2010 (collectively, the “Technical Reports”). The Company has filed the
Technical Reports under its profile on SEDAR at www.sedar.com.
Technical Advisor
SRK Consulting (U.S.) Inc. has been awarded a broad mandate to provide overall technical assistance to the Company in Portugal and will be producing several NI 43101 compliant reports as projects progress (see: January 18, 2011 press release). Gareth O’Donovan CEng MSc BA (Hons) FIMMM FGS - SRK Exploration Services
Ltd. is the independent qualified person, as defined in NI 43-101, for the Company’s projects in Portugal.
1
TUNGSTEN – THE PROPERTIES THAT MAKES IT A SPECIALTY METAL

Atomic Number – 74

Atomic Weight – 183.84

The highest melting point of all metals – 3422ºC

Very high density – 19.25 (comparable with Au=19.30, U=19.05)

High hardness – 7.5 in the Mohs scale

The highest tensile strenght of all metals

The lowest thermal expansion coefficient of all metals

High resistence to chemical corrosion (oxygen, acids, alkalis)

Very difficult recycling (~10%)

Without substitutes in its applications
2
TUNGSTEN INDUSTRY OVERVIEW
APPLICATIONS
THE TUNGSTEN MARKET

China hosts nearly two-thirds of the world’s reserves
and accounts for over three-quarters of global
production, however, in the recent years it went from
exporter to a net importer to satisfy domestic
demand.

Non-Chinese sources of tungsten are scarce and
generally have contractual or ownership ties to
consumers

Additional western concentrate capacity is required
to guarantee access to raw materials
WORLD RESERVES
Machinery
Mining and
Construction
Tools
Lighting
Electrical
Alloys
WORLD PRODUCTION
3
Tungsten prices are close to all-time highs
Tungsten APT European, $ per mtu
Source: Bloomberg
• APT (“Ammonium paratungstate”) the intermediate product obtained chemically from the tungsten concentrates, is the
normal form of trading of tungsten mine products, and is used for the production of the final products (tungsten metal, ferrotungsten, tungsten carbide);
• The above price is of APT per MTU (“metric tonne unit”), which equates with 10kg of contained WO 3 – equivalent to 7.93 kg
of contained tungsten (W);
• In June 2010 the European Union declared tungsten as a “critical raw material for the EU”, and this is the reason for the
main price raise shown in the graphic, which happened in that year, establishing a new price level.
4
PORTUGAL – A TUNGSTEN-RICH COUNTRY
THE CENTRAL-IBERIAN ZONE AND
GALICIA–TRÁS-OS-MONTES ZONE HAVE
ABUNDANT W±Sn MINERALIZATION,
ASSOCIATED WITH THE VARISCAN GRANITOIDS
THE
The two main tungsten
minerals occur in Portugal:
Scheelite – Ca WO4 ; and
Wolframite – (Fe,Mn) WO4
UNTIL THE MID 1980’S PORTUGAL HAD
SEVERAL TUNGSTEN MINES IN OPERATION.
AT PRESENT ONLY PANASQUEIRA REMAINS
IN PRODUCTION.
5
TUNGSTEN DEPOSITS AND OCCURRENCES IN
COLT’S EXPLORATION AREAS IN NORTHERN
PORTUGAL (VISEU AND GUARDA DISTRICTS)
Prospecting Work done by COLT in its
Exploration Licences of Penedono,
Armamar-Meda, Moimenta-Almendra
and Cedovim, between 2007 and 2013
Geologic Setting:
• Metasediments of the Douro Schist-Graywacke Complex at NE
• Variscan Granitoids of the Armamar-Penedono-Escalhão antiform at SW
• SE extension of the NW-SE trending Vigo-Braga-Amarante semi-ductile shear zone
• NNE-SSW trending sinistral strike-slip faults of the Vilariça fault system
• Low grade regional metamorphism
• Important contact metamorphism and metasomatism
Mineralization
W – skarn-type
(scheelite)
W-Sn – vein-type
(wolframite ± scheelite + cassiterite)
Au(±W) – vein/greisen
(arsenopyrite + gold ± wolframite)
6
LOCALIZATION
Porto
Tabuaço
Lisboa
Tabuaço
It’s the Municipality seat
Area:135,72 km²
Nº of inhabitants: 6350
São Pedro
das Águias
São Pedro das Águias
300km NNE from Lisbon
100km ESSE from Porto
(11,9 Km from Tabuaço)
7
CURRENT TABUAÇO EXPERIMENTAL MINING CONCESSION
TABUAÇO
Colt concession with an area of
45.128km2, located in the municipalities
of Tabuaço and S. João da Pesqueira
(Viseu district); covering part of Colt’s
previous Armamar-Meda exploration
licence (436,81km2)
8
HISTORY OF THE TABUAÇO TUNGSTEN PROJECT
1977-1979
1980-1982
‒ Discovery of Scheelite-bearing Skarns in the Tabuaço region, by geologists of
the Portuguese Government
‒ SPE–BRGM joint venture: Prospecting of the Skarns in the Tabuaço region;
diamond drilling program at S. Pedro das Águias (6 holes, 544 metres)
1983
‒ Interruption of the program of SPE–BRGM j.v., as a result of difficulties in
proceeding negotiations with the landowner of the São Pedro das Águias farm
1985
‒ World Tungsten crisis, originated by large exports from China, and which originated
the closure of several tungsten mines in Portugal and worldwide
1985-2007
‒ The maintenance of unfavourable conditions in the world tungsten market prevent
Tabuaço from attracting the attention of mining or exploration companies
Dec. 2007
‒ COLT signs with the Portuguese Government the Exploration Contract for the
“Armamar–Mêda” concession (436.81km2) which includes the Tabuaço tungsten area
Jul. 2008
‒ COLT starts its surface prospecting and sampling work at the Tabuaço tungsten
area; confirming favourable widths and grades
Dec. 2009
‒ COLT starts its first diamond drilling program at the São Pedro das Águias
deposit (Tabuaço)
May 2010
‒ COLT concludes its 1sty drilling program at the São Pedro das Águias deposit
(9 holes, 766 metres); the results confirm the economic potential
Jul. 2010
‒ Environmental and Heritage Diagnosis (“Diagnóstico Ambiental e Patrimonial”)
completed, confirming that the Tabuaço project is “permittable”
Nov. 2010
‒ COLT starts its 2nd drilling program at Tabuaço, which would be continued
without interruption until January 2013
9
HISTORY OF THE TABUAÇO TUNGSTEN PROJECT
Aug. 2011
‒ COLT acquires the São Pedro das Águias vineyard farm, where the São Pedro
das Águias deposit is located
Nov. 2011
‒ COLT releases its first resource estimate for Tabuaço (S. Pedro das Águias
deposit), in accordance with Canadian regulation NI 43-101
Feb. 2012
‒ Discovery of the Aveleira deposit by a drill hole positioned to test a soil
geochemical anomaly
Mar. 2012
‒ Metallurgical testwork initiated (in Canada, Germany and China) on samples of
ore from the S. Pedro das Águias deposit
Aug. 2012
‒ COLT submits to the Portuguese environmental authority (APA) the Environmetal
Scoping Study for the Tabuaço project (PDA)
Oct. 2012
‒ COLT updates the resource estimate for Tabuaço (including both S. Pedro das
Águias and Aveleira deposits), in accordance with Canadian regulation NI 43-101
Oct. 2012
‒ A positive reply is received from the Portuguese environmental authority (APA)
regarding the evaluation of the Environmental Scoping Study for Tabuaço project
Jan. 2013
‒ Concluded 2nd drilling program; COLT drilled to date a total of 82 exploration and
evaluation holes (9760m), 8 metallurgical holes (736m), 2 geotechnical holes (154m)
Feb. 2013
‒ COLT signs with the Portuguese Government the Contract for the Tabuaço
Experimental Mining Licence; total investment to date totalling € 4 million
Mar. 2013
‒ Started data collection and studies for the execution of the Environmental Impact
Assessment (EIA) for the Tabuaço project
Sep. 2013
‒ COLT releases the Preliminary Economic Analysis (PEA) report for the Tabuaço
mining project, produced by consulting firm SRK (UK)
10
EXPLORATION METHODS LEADING TO THE DISCOVERY OF TUNGSTEN MINERALIZATION IN THE TABUAÇO REGION
• The initial discovery of skarns and calcsilicate rocks outcropping in the Tabuaço region, in the 1970’s,
resulted during the execution of geologic mapping work performed in the Douro Valley by Portuguese
Government geologists. The sampling os such units indicated scheelite contents with economic interest.
Subsequently, the following methods were applied in the region, with some rate of success, for the prospecting
for additional occurrences of scheelite-bearing skarns:
• Geologic prospecting (day-time) and Mineralight prospecting (night-time); accompanied by collection or
rock samples for examination under UV light as well as for chemical analysis;
• Stream sediment surveys, comprising the collection of both geochemical samples (analysis for W, Sn,
and other elements), as well as pan-concentrate samples (counting of points of scheelite, cassiterite, etc.);
• Soil geochemical surveys, with multi-element analysis of soil samples (W and skarn indicator elements,
such as Ca, Ti, Sr, Mg, Mn);
• Only occasionally some trenches were open, for the exposure of the bedrock, its examination and sampling
– this methodology was most limited in the region, due to the steep topography, with man-made walls and
terraces, and the need to avoid damage to the vineyards;
• Finally the execution of diamond drilling, first for the confirmation of mineralization at depth, then for its
delineation and evaluation.
The methods applied allowed the discovery of outcropping, or sub-outcropping scheelite-bearing skarns,
located at shallow depth under man-made vineyards and other terraces (particularly in the case of the soil
geochemistry and the Mineralight prospecting).
No effective method was discovered to date, for the detection at depth of this kind of mineralization at
Tabuaço, or in the greater Douro region. While the application of the geophysical methods normally used in
exploration is limited by the fact that the type of mineralization gives a weak or null response; as well as for the
difficulty of execution of such surveys in areas with vineyards in terraces.
11
GEOLOGIC SETTING OF THE TUNGSTEN MINERALIZATION OF THE TABUAÇO REGION
 STRATIGRAPHY: BATEIRAS FORMATION, THE LOWEST OF THE
DOURO SCHIST-GRAYWACKE COMPLEX (LOWER CAMBRIAN)
 TÁVORA ANTICLINE, WITH THE BASAL UNIT OF THE BATEIRAS
FM. (BLACK GRAPHITIC SCHISTS) IN ITS CORE
 HORIZONS OF CARBONATE, SKARN AND CALCSILICATE ROCKS
LOCATED IN BOTH LIMBS OF THE ANTLICLINE (BOTH BANKS OF
THE TÁVORA RIVER), STRATIGRAPHICALLY SHORTLY ABOVE THE
BASAL BLACK GRAPHITIC SCHISTS
 GREAT PROXIMITY TO THE ARMAMAR-TABUAÇO GRANITE
DOURO
SCHIST-GRAYWACKE
COMPLEX
ARMAMAR-TABUAÇO
GRANITE INTRUSION
Sketch geologic map
adapted from Alves (1982)
LOCATIONS WITH SCHEELITEMINERALIZED SKARNS:
1. Quinta das Herédias
2. Qta. de S. Pedro das Águias
3. Quinta da Aveleira
4. Quintã
5. Azenha Velha
6. Quinta do Paço
12
PANORAMIC VIEW OF THE AREA OF THE TABUAÇO TUNGSTEN PROJECT, LOOKING WEST
Scheelite-mineralized outcrop
Area of delineated tungsten resources
Base: Photo composition of A.F.Faria, 2008
13
LOCAL GEOLOGY OF THE TABUAÇO TUNGSTEN DEPOSITS
Among the several occurrences of scheelite-bearing skarns occuring in the Tabuaço region, those
locating in the SW limb of the Távora anticline (west bank of the Távora river) have greater economic
potential, with particular emphasis on the São Pedro das Águias and Aveleira deposits.
The local geology of this zone is characterized by:
• Two skarn horizons richly mineralized in scheelite (Main Skarn Principal and Lower Skarn), separated
between them, as well as from the basal black schists, by micaceous, pelitic to psamitic schists;
• Occurrence locally of one carbonate horizon, above the Main Skarn, and also separated from it by
micaceous schists; sometimes contains some scheelite mineralization;
• Both the skarn and carbonate horizons have generally metric widths, sometimes exceeding 20m, and in
general gentle dips (~20º) to SW;
• Very close proximity in relation to the Armamar-Tabuaço granitic intrusion, in its marginal leucocratic facies
(albitic-muscovitic);
• Metasedimentary sequence (incl. skarns and carbonates) extending under the granitic intrusion;
• Frequent occurrence of aplitic apophyses (sills), of frequently metric widths, intrusive in the skarns and
enclosing schists;
• Late faults, oriented NE-SW to ENE-WSW, NNW-SSE, and more rarely WNW-ESE, sometimes originating
significant vertical and/or lateral slips.
14
LOCAL GEOLOGY OF THE
TUNGSTEN DEPOSITS OF
THE TABUAÇO REGION
(WEST BANK OF THE
TÁVORA RIVER)
15
SKARNS OF THE TABUAÇO DEPOSITS
The mineralogy of the Tabuaço skarns is made of
combinations of the following minerals:
sodium-plagioclase, K-feldspar, vesuvianite, epidote,
zoisite/clinozoisite, diopside, garnet (grossular),
hornblende, tremolite-actinolite, quartz, sericite,
calcite, fluorite, apatite, scheelite.
“M-type” Skarn , most frequent in the
MainSkarn Horizon (upper);
coarser and more massive, mostly
composed of albitic plagioclase and
vesuvianite; generally richer in scheelite
“L-type” Skarn, most frequent in the
Lower Skarn Horizon;
finer grained and more layered,
principally made of K-feldspar, epidotegroup minerals, vesuvianite and
diopside; generally poorer in scheelite
16
EXPLORATION AND EVALUATION WORKS PERFORMED AT TABUAÇO
For the exploration and evaluation of the Tabuaço scheelite deposits, the following field,
laboratory or desktop works were completed:
 Surface geologic reconnaissance, detail geologic mapping;
 Stream sediment surveys, including geochemical and pan-concentrate sampling;
 Mineralight prospecting and soil geochemical traversing;
 Structural geology studies;
 Sampling of outcropping mineralization (including either grab, chip and channel samples);
 Diamond drilling program: 82 exploration & evaluation holes (9760m), 8 holes for metallurgical
samples (736m), and 2 geotechnical holes (154m);
 Study of alternatives for the location of the industrial infrastructure (chosen Passafrio);
 Mineralogic studies and metallurgical testwork;
 3-D modelling and resource estimation (in accordance with canadian regulation NI 43-101);
 Conceptual studies of mining engineering, and of planning of mining infrastructures;
 Social,environmental and heritage diagnosis of the project enclosing area;
 Environmental Scoping Study (PDA);
 Preliminary Economic Analysis (PEA).
17
GEOCHEMICAL AND PAN-CONCENTRATE STREAM SEDIMENT
SURVEY CARRIED OUT IN THE TABUAÇO REGION
Pan-concentrate anomalies of
scheelite and cassiterite in the
tributary streams of both
banks of the Távora river
(data from the SPE–BRGM joint venture)
18
MINERALIGHT PROSPECTING AND
SOIL GEOCHEMICAL TRAVERSING
IN THE WEST BANK OF THE
TÁVORA RIVER
Methods utilized for the
detection of sub-outcropping
mineralization, hidden under the
vineyard terraces
19
SAMPLING OF SCHEELITE SKARN OUTCROPS IN
THE WEST BANK OF THE TÁVORA RIVER
Lower Skarn, S. Pedro das Águias
Main Skarn, S. Pedro das Águias
Main Skarn,
Herédias
Lower Skarn, Herédias
20
PLAN MAP OF THE SÃO PEDRO DAS ÁGUIAS DEPOSIT (TABUAÇO)
21
DIAMOND DRILLING AT THE S. PEDRO
DAS ÁGUIAS DEPOSIT (TABUAÇO)
22
INTERPRETATIVE CROSS-SECTION OF THE SÃO PEDRO DAS ÁGUIAS DEPOSIT (TABUAÇO)
ARMAMAR-TABUAÇO
GRANITIC INTRUSION
DOURO-GROUP
METASEDIMENTS
23
MINERALIZED DRILL CORE FROM
THE MAIN SKARN OF THE
SÃO PEDRO DAS ÁGUIAS DEPOSIT
(TABUAÇO)
UNDER DAY LIGHT →
UNDER SHORT-WAVE
UV LIGHT →
24
AVELEIRA DEPOSIT
DISCOVERED IN FEB. 2012
BY A DRILL HOLE POSITIONED BASED
ON A SOIL GEOCHEMICAL ANOMALY
(W, Ca, Ti, Sr, Mg, Mn)
25
PLAN MAP OF THE AVELEIRA DEPOSIT (TABUAÇO)
26
DIAMOND DRILLING AT THE AVELEIRA
DEPOSIT (TABUAÇO)
27
INTERPRETATIVE LONG SECTION OF THE AVELEIRA DEPOSIT (TABUAÇO)
DOURO-GROUP
METASEDIMENTS
28
MINERALIZED DRILL CORE FROM
THE MAIN SKARN OF THE
AVELEIRA DEPOSIT (TABUAÇO)
UNDER DAY LIGHT →
UNDER SHORT-WAVE
UV LIGHT →
29
SELECTION OF DRILL INTERSECTIONS FROM COLT’S
DIAMOND DRILL HOLES AT THE TABUAÇO DEPOSITS
Hole #
Inclination
Azimuth
From
(m)
To
(m)
Interval
(m)
True Width
(m)
(weigh.ave.)
WO3%
São Pedro das Águias deposit
DHT-01B
-90º
000
19.15
37.95
18.80
17.67
0.71
DHT-02
-90º
000
52.60
66.20
13.60
12.78
0.99
DHT-08
-90º
000
42.40
54.40
12.00
11.28
0.60
DHT-09
-45º
210
93.60
115.20
21.60
19.40
0.54
DHT-12
-90º
000
58.35
68.00
9.65
9.07
1.33
DHT-13
-50º
030
92.80
100.45
7.65
7.13
1.11
DHT-14
-90º
000
77.30
85.65
8.35
7.84
1.29
DHT-15
-60º
055
108.35
122.55
14.20
13.95
0.89
DHT-25
-65º
210
53.78
64.62
10.84
10.75
0.95
DHT-26
-90º
000
14.10
27.50
13.40
12.59
0.76
DHT-31
-60º
126
147.75
154.75
7.00
5.88
0.74
DHT-33
-50º
330
18.20
24.40
6.20
4.11
0.84
DHT-51
-90º
000
60.35
66.35
6.00
5.64
0.99
Aveleira deposit
DHT-49
-90º
000
24.40
30.35
6.05
5.69
1.25
DHT-70
-90º
000
67.00
78.00
11.00
10.34
0.88
30
3-D MODELING OF THE SÃO PEDRO DAS ÁGUIAS DEPOSIT (TABUAÇO)
3D Block
Model
3D Solid
Model
31
THE FAVOURABLE CONDITIONS OF THE TABUAÇO TUNGSTEN DEPOSITS
The São Pedro das Águias and Aveleira (Tabuaço) deposits have a number of characteristics that
make them particularly attractive from the mining point of view:
 Mineralized bodies (skarns) very thick (normally between 5m and 20m), with some hundred metres
extension, and with a gentle inclination;
 Metasedimentary sequence, including the skarns, continuing under the granitic intrusion, and the
deposits are still open;
 Good quality ore, essencially made up of silicates, practically without sulphides or heavy metals
(contaminants);
 High scheelite contents, i.e. generally high average WO3 grades;
 Scheelite with high degree of purity, without molibdenum (penalizing element);
 Metallurgical testwork indicating the possibility of obtaining high-grade (70%) WO3 concentrates
through the application of a combination of gravity and flotation methods;
 Possibility of recovery of fluorite as a by-product with significant commercial value.
Besides, it is considered as likely the discovery of new scheelite skarn deposits in the gap between
São Pedro das Águias and Aveleira, as well as beyond Aveleira to the northwest.
32
CURRENT STATUS OF
DELINEATION OF THE
TABUAÇO TUNGSTEN
DEPOSITS
CURRENT RESOURCE INVENTORY OF THE
TABUAÇO TUNGSTEN DEPOSITS
(S. PEDRO DAS ÁGUIAS & AVELEIRA)
Resource
Category
Tons of
ore
grade
(%WO3)
Contained
metal
(MTU WO3)
Indicated
1,495,000
0.55
815,000
Inferred
1,230,000
0.59
720,000
Total
2,725,000
0.56
1,535,000
( 71% of resources at S. Pedro das Águias,
29% at Aveleira )
33
TABUAÇO MINING PROJECT – TECHNICAL INFORMATION
Underground Mine
•
•
Production ROM – 375 x 103 ton/year, with an average grade of 0.47 % WO3
Production of scheelite concentrate with a grade of 70% de WO3
Underground mining method
• Drift & Fill
• Back filling)
Concentration plant
The following operations have been considered for the concentration plant:
•
•
•
•
•
•
•
•
•
Primary crushing
Secondary crushing
Milling and pre-concentration in jigs
Desliming and thickening
Preconcentration in shaking tables
Concentration in jigs
Concentration in shaking tables
Flotation
Magnetic separation
Prevision for the start of production
•
2016 - 2017
34
TABUAÇO MINING PROJECT
3D Model of the Underground Workings planned for
the S. Pedro das Águias and Aveleira deposits
AVELEIRA DEPOSIT
QSPA Winery
SPA Convent
S.PEDRO DAS ÁGUIAS
DEPOSIT
35
Concentration Plant (Simplified Flowsheet)
36
Main alternatives considered for the location of the mining infrastructures
The Passafrio location was chosen, for reasons related with distance, accessability,
environment, favourable topography, minimization of impacts in the landscape and in
the acquifers, and also facility in reaching an agreement with the landowners
37
Location of the S. Pedro das Águias and Aveleira planned underground work,
as well as of the mining infrastructure of Passafrio
Safety Dam
Tailings Dam
Waste Dump
38
Preliminary Economic Assessment (September 2013)
Economic Model Summary
Units
Results
Production
Ore Processed
Recovered Metal
(kt)
(MTU WO3)
3,557
1,387.239
Financial
Revenue
(USDm)
496.2
Operating Costs
(USDm)
(244.6)
Operating Profit
(USDm)
246.6
Net Profit
(USDm)
196
Capital Expenditure
(USDm)
(86.8)
Cashflow
(USDm)
109.2
(USDm)
67.4
(%)
30.7
(USD/tore)
70.17
(USD/MTU WO3)
201.20
Post-Tax Reporting
NPV @ 5%
IRR
Cash Cost
Cash Cost
39
TABUAÇO MINING PROJECT – SOCIO-ECONOMIC ASPECTS
TOTAL INVESTMENT: € 84 MILLION (APPROX.)
(DOES NOT INCLUDE EXPLORATION EXPENDITURE, NEITHER OTHER PRE-OPERATION EXPENDITURE, NOR GROUND ACQUISITION COSTS)
JOB CREATION IN THE PROJECT AREA: 119 DIRECT JOBS
(PLUS AROUND 600 INDIRECT JOBS; AROUND 1200 JOBS DURING THE CONSTRUCTION PHASE)
POSITIVE INFLUENCE IN THE ECONOMY AND SUSTENTABILITY OF THE LOCAL AND
REGIONAL BUSINESS ACTIVITIES
DINAMIZATION OF THE LABOUR MARKET, WITH THE MAINTENANCE AND CREATION OF
JOBS FOR SPECIALIZED PROFESSIONALS
ACTIVATION OF COMMERCIAL RELATIONS, BOTH UPSTREAM AND DOWNSTREAM, WITH
OTHER ECONOMIC ACTIVITIES
SIGNIFICANT CONTRIBUTION TO THE NATIONAL AND LOCAL TAXES
MAINTENANCE OF THE LANDSCAPE AND OF THE HISTORIC HERITAGE (SÃO PEDRO
DAS ÁGUIAS CONVENT, ETC.)
40
POSSIBLE SINERGIES: RELATIVELY CLOSE DEPOSITS WITH SIMILAR MINERALOGY
TAROUCA, AND SPECIALLY ARMAMAR, HAVE SCHEELITE ORES WITH VERY SIMILAR COMPOSITION TO TABUAÇO,
SO IT IS ADMITTED THAT THEY COULD VERY LIKELY BE PROCESSED THROUGH THE SAME PLANT
THE MAKING OF APT OR OF THE TUNGSTEN END PRODUCTS, DEMANDS A SIGNIFICANT “SCALE OF PRODUCTION” THAT WOULD
HARDLY BE ATTAINED BY ONE SINGLE PROJECT. SO, IN ORDER TO VIABILIZE ONE APT PLANT IN PORTUGAL, IT WOULD BE
NECESSARY TO CONSIDER JOINING THE PRODUCTION OF THESE THREE DEPOSITS IN A SINGLE APT PLANT.
Base: Cartogr.Geol.1:500.000 do LNEG
41

TABUAÇO

Transcription

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