Minera IRL Ltd Announces Definitive Feasibility Study, Ollachea Project, Peru
29 November 2012 - 7:00AM
Marketwired Canada
Minera IRL Limited ("Minera IRL" or the "Company")
(TSX:IRL)(AIM:MIRL)(BVL:MIRL), the Latin American gold mining company, is
pleased to announce the results of a Definitive Feasibility Study ("DFS") on its
Ollachea Project (the "Project"), Peru. The Project is 100% owned by Minera IRL
SA subsidiary Minera Kuri Kullu SA ("MKK"). The DFS was carried out by
international engineering firm AMEC in conjunction with Coffey Mining, who
contributed the resource estimation and underground mining aspects of the study.
Highlights:
Project Economic Indicators
-- Using a gold price of $1,300 per ounce, NPV @ 7% real of $264 million
(pre-tax) and $155 million (post tax); and IRR of 29.2% (pre tax) and
22.1% (post tax)
-- Up-front capital cost estimate of $177.5 million
-- Life-of-mine ("LOM") cash operating cost of $499 per ounce
Project Physical Indicators
-- Canadian National Instrument 43-101 ("NI 43-101") compliant Indicated
Resource of 10.6 million tonnes grading 4.0g/t gold containing 1.4
million ounces gold
-- Probable Mineral Reserve of 9.3 million tonnes grading 3.4g/t gold
containing 1.0 million ounces
-- Rate of 1.1 million tonnes per annum to produce an average of 113,000
ounces gold per year at full capacity
-- Nine year initial mine life including ramp-up and down
-- Underground mining accessed by a 1.2km tunnel currently over 800 metres
advanced
-- Conventional metallurgical processing to extract 91% of the gold
Next Steps
-- Environmental Impact Assessment ("EIA") to be submitted before year-end
thereby initiating permitting
-- Investigating financing and early commencement of detailed engineering
-- Production forecast to commence beginning 2015
-- Upside potential includes the adjacent Concurayoc Zone with a 0.9
million ounces Inferred Resource which is not included in the DFS. The
Minapampa and Concurayoc zones are open ended both along strike and down
dip.
Note: $ denominates United States ("US") dollars unless otherwise stated.
"Ollachea's DFS confirms that Minera IRL has an economically and technically
robust, long life project." said Courtney Chamberlain, Executive Chairman of
Minera IRL. "Our team of engineers and consultants have done an excellent job on
this comprehensive evaluation. This has been bolstered by the practical
underground mining experience being obtained from the ongoing exploration drive,
which has now advanced over 800 meters. We are confident of a much longer mine
life than the initial nine years defined in this study considering that over one
million ounces of Inferred Resource has already been identified and that the
gold bearing structures are open ended along strike and down dip."
"The EIA will be submitted to the Peruvian authorities shortly thus commencing
the permitting process. We are investigating financing options and intend to
commence detailed engineering early in 2013. Our target is to start ore
processing at the beginning of 2015."
Financial Analysis
The financial analysis was undertaken in constant US dollars, 100% Project,
stand alone in country and 100% equity finance basis. It was undertaken at a
base case gold price of $1,300/oz. However, the analysis was also performed
using a gold price of $1,600/oz to show the impact of a higher gold price. The
results of the financial analysis are set out below.
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Parameter Units Financial Results
-----------------------------------------------
$1,300/oz (base case) $1,600/oz
-----------------------------------------------
Pre-tax Post-tax Pre-tax Post-tax
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Project cash flow $M 489 325 749 486
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NPV at 5% real $M 316 194 506 310
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NPV at 7% real $M 264 155 434 258
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NPV at 10% real $M 199 108 343 194
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IRR (real) % 29.2 22.1 40.2 30.2
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Payback years 3.2 3.7 2.5 3.0
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Note:
1. NPVs as at commencement of construction
2. NPVs are based on mid-period discounting
3. Before tax is before Special Mining Tax, Workers' Participation Profit of
8% and Income Taxes of 30%
4. Payback starts from the commencement of production
5. The financial results are on 100% Project basis and exclude the agreement
with the community for a 5% participation in MKK on commencement of
production and the Second Additional Payment payable by MKK and due to
Rio Tinto in accordance with Mining Claim Transfer Agreement dated 23
February 2007.
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Other assumptions included in the financial analysis are:
-- US$: PEN (Peru Sol) of 2.65
-- Third party 1% NSR Royalty
-- Peru Royalty based on an operating margin sliding scale
-- Peru Special Mining Tax based on a operating margin sliding scale
-- Peru Workers' Profit Participation of 8% of pre-tax profits
-- Peru Income tax rate of 30%
Mineral Resources and Mineral Reserves
A NI 43-101 compliant Mineral Resource estimate was announced on 18 July 2012.
This Mineral Resource estimate was carried out by consulting firm Coffey Mining
Pty Ltd.
The Indicated Mineral Resource estimate over the Minapampa Zone totals 10.6
million tonnes averaging 4.0 g/t gold containing 1.4 million ounces. This
resource is contained within six discrete horizons over a strike length of
approximately 950 meters and down- dip approximately 350 meters. This estimate
was based upon 151 diamond drill holes for 59,509 meters. The mineral resource
estimate applies a 2g/t gold bottom cut and top cutting as appropriate for each
of the six discrete gold-mineralized horizons that have been defined to date.
The dry in-situ bulk density within mineralised zones, based upon 103 bulk
density determinations, is 2.83 tonnes per cubic meter.
Included within the Indicated Mineral Resource envelope, the higher grade core
Indicated Mineral Resource, using a 3.5g/t gold cut-off, totals 5.1 million
tonnes grading 5.3g/t gold containing 0.9 million ounces.
In addition, the Inferred Mineral Resource at Minapampa and Concurayoc,
approximately 400 meters west of Minapampa, totals 13.7 million tonnes grading
2.9 g/t gold for 1.2 million ounces. With additional future resource definition
drilling, this Inferred Mineral Resource offers potential for a significant mine
life extension. The deposit remains open along strike and down dip providing
significant future exploration potential.
Probable Mineral Reserves at Minapampa, are shown in the following table. The
Probable Mineral Reserves are included within the Indicated Mineral Resources
and inclusive of mining dilution.
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Tonnage Au Grade Contained Au
Category Mt g/t koz
----------------------------------------------------------------------------
Ore (+2g/t Au) 8.7 3.5 983
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Low Grade Development Ore 0.6 1.5 28
(+1g/t to 2g/t Au)
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Probable Mineral Reserves 9.3 3.4 1,011
----------------------------------------------------------------------------
The low grade development ore is sourced from development drives that traverse
through Indicated Mineral Resource but has been diluted below the Project COG of
2.0g/t Au. As the mining cost for this material will have already been expensed,
it is economic to treat through the plant. A mill cut-off grade of 1.0g/t Au has
been applied to this material.
Mining & Processing
The mining method will be long-hole open stoping with paste backfill. The main
access to the orebody will be via a 1.2 km-long exploration access drive from
the plant site in the adjacent valley. This drive is currently in progress and
has already advanced over 800 meters. The drive will access the orebody near the
lower limit of the drill defined deposit so most ore mining will be from the
bottom upwards. Extraction will occur along the orebody strike direction on a
retreat basis.
Mine development will continue in parallel with the plant and infrastructure
construction. Whilst some ore will be mined and stockpiled during the
development period, the actual ore stoping production is scheduled to commence
in early 2015, ramping up to the full 1.1 million tonnes per annum rate by
mid-2016. Development waste of 2.6Mt will be mined over the LOM.
A comprehensive metallurgical testing programme has been completed in Australia
and the United States. This demonstrated good metallurgical response to
conventional crush, grind, gravity concentration and carbon-in-leach technology.
Gold recovery of 91% is projected.
The processing plant will have a capacity of 1.1 million tonnes per annum.
Tailings will be filtered and split between underground cemented fill and dry
stacking on surface.
The average steady state (approx. 6.6 years) gold production is approximately
113koz per annum. The following table summarises the mine and processing
production.
----------------------------------------------------------------------------
LG Dev. Ore
Ore Mined Mined Ore Processed
--------------------------------------------------
Au Au Total Au Au
Ore grade Ore grade Ore grade Recovery Production
Year (kt) (g/t) (kt) (g/t) (kt) (g/t) (%) (koz)
----------------------------------------------------------------------------
2014 35 3.11 11 1.56 - - - -
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2015 586 3.46 110 1.51 680 3.21 90.2% 63
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2016 811 3.07 80 1.53 938 2.91 88.8% 78
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2017 1,097 3.48 55 1.49 1,117 3.45 90.3% 112
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2018 1,095 3.66 99 1.44 1,127 3.60 91.2% 119
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2019 1,099 3.63 87 1.47 1,120 3.59 91.2% 118
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2020 1,106 3.81 132 1.51 1,132 3.76 92.0% 126
----------------------------------------------------------------------------
2021 1,099 3.58 16 1.50 1,137 3.51 91.5% 118
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2022 862 3.25 - - 1,128 2.83 91.1% 94
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2023 738 3.50 - - 738 3.50 91.8% 76
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2024 203 2.90 - - 203 2.90 93.1% 18
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Total 8,730 3.50 590 1.49 9,320 3.38 91.0% 921
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Taking into account the potential to convert the Inferred Mineral Resource at
the nearby Concurayoc Zone to the Measured and Indicated categories, as well as
the exploration upside, the Company considers that there is an excellent
opportunity to extend the full 1.1 million tonnes per annum mining and treatment
rate well beyond 2022.
Infrastructure
Ollachea is well served by existing infrastructure and sits astride the new
Southern Interoceanic Highway. A high tension power line passes over the project
site and a long term contract has been signed with the hydroelectric supplier.
There is an abundant source of water and a significant portion of the workforce
will be recruited from the local community.
A permanent camp will be developed close to the plant site to accommodate 200
employees.
Capital Cost Estimate
Project development capital cost is estimated to be $177.5 million with an
additional LOM sustaining capital of $41.6 million and $4.2 million for closure
capital. Capital costs are summarised in the following table.
----------------------------------------------------------------------------
Item Cost
$M
----------------------------------------------------------------------------
Project Capital
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Mining 55.4
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Site Development 3.9
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Process Plant 58.4
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Ancillary Buildings 3.9
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Tailings System 5.7
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Indirect and Owners Cost 31.4
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Contingency 19.0
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Total Project Capital 177.5
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Sustaining Capital 41.6
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Closure Costs (net) - End of LOM 4.2
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Total LOM Capital Cost 223.3
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Note:
----------------------------------------------------------------------------
1. Costs are in 3Q 2012 $.
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Operating Cost Estimate
Operating costs to mine and treat at a steady state production rate of 1.1
million tonnes per annum were derived from first principles. The LOM average
unit operating costs are summarised in the following table.
----------------------------------------------------------------------------
Item $/t ore $/oz
----------------------------------------------------------------------------
Mining 23.4 237
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Processing 21.5 218
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G&A 4.3 44
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Total operating 49.2 499
costs
----------------------------------------------------------------------------
Note:
1. Costs are in 3Q 2012 $.
2. Operating cash costs exclude costs for freight and refining dore, and
royalties.
----------------------------------------------------------------------------
Environmental & Permitting
Environmental baseline information has been collected over approximately a three
year period. This is being used in conjunction with special studies, such as
hydrogeology and geotechnical, and DFS design details to produce an EIA which is
currently in progress and is expected to be submitted by the end of 2012. The
submission of the EIA to the Peruvian government authorities will be the basis
for the development permitting process.
Community Relations
MKK has developed excellent relationships with the local community and has a 30
year development and operating permit in place. The community will become a 5%
equity participant in MKK upon the commencement of production. A significant
portion of the workforce will be local people who will be trained and employed
at the operation.
Archaeological clearance has been granted for most of the required plant,
tailings and infrastructure locations. Remaining clearance is in progress but no
sites of national significance have been identified within the area of planned
use.
Project Schedule and Moving Forward
The successful completion of the DFS establishes the basis for moving quickly
towards development. The excellent progress on the exploration drive will
provide the opportunity for uninterrupted progression toward establishing
underground infrastructure and development. The EIA will be completed and
submitted in a timely manner. Investigations into project financing will now be
accelerated.
The project schedule is predicated upon a rapid move toward development. An
engineering company will shortly be appointed to commence detailed design and
identify long lead items for placement of early orders. Plant and infrastructure
construction is scheduled for completion late in 2014 with first feed to the
plant at the beginning of 2015. Canadian National Instrument 43-101 compliant
report will be filed within the ensuing required 45 day period.
Competent Persons Statement
The preparation of the technical information contained herein was supervised by
Courtney Chamberlain, Executive Chairman, BSc and MSc Metallurgical Engineering,
a Fellow of the Australian Institute of Mining and Metallurgy (FAusIMM), who is
recognized as a Qualified Person for the purposes of National Instrument 43-101,
and who has reviewed and approved the technical information in this press
release. Also by Donald McIver, VP Exploration of the Company, MSc Exploration
and Economic Geology, a Fellow of the Australian Institute of Mining and
Metallurgy (FAusIMM), as well as the Society of Economic Geologists (FSEG), who
is recognized as a Qualified Person for the purposes of National Instrument
43-101, and who has reviewed and approved the resource information in this press
release.
The preparation of the Probable Mineral Reserve contained herein was supervised
by John Hearne, FAusIMM, of Coffey Mining, who is recognized as a Qualified
Person for the purposes of National Instrument 43-101, and who has reviewed and
approved the technical information in this press release.
The preparation of the Indicated Mineral Resources contained herein was
estimated by Doug Corley, Member of the Australasian Institute of Geoscientists
(MAIG), and Registered Professional Geoscientist (RP Geo), of Coffey Mining, who
is recognized as a Qualified Person for the purposes of National Instrument
43-101, and who has reviewed and approved the technical information in this
press release.
Conference Call
Following the release, Minera IRL plans to host a conference call at 10:00 am
Toronto (EDT), 3:00 pm UK (BST), 10:00 am Lima (PET) on November 29, 2012. To
participate in the call please dial:
Toll Free (North America): 877-240-9772
Local Toronto and International: 416-340-8527
Global: 800-2787-2090
A live webcast and archive will be available at: http://www.gowebcasting.com/4028
REPLAY:
Dial-in numbers: 905-694-9451 / 800-408-3053/ 800-3366-3052
The replay is available till December 6th, 2012
Passcode: 5695777
To view the images associated with this release, please visit the following
link: http://media3.marketwire.com/docs/miner11.pdf
Minera IRL Limited is the AIM traded, TSX and BVL listed holding company of
precious metals mining and exploration companies focused in Latin America.
Minera IRL is led by an experienced senior management team with extensive
industry experience, particularly operating in South America. The Group operates
the Corihuarmi Gold Mine and the advanced gold projects Ollachea in Peru and Don
Nicolas in Argentina. For more information, please visit www.minera-irl.com.
Some of the statements contained in this release are forward-looking statements,
such as estimates and statements that describe the Company's future plans,
objectives or goals, including words to the effect that the Company or
management expects a stated condition or result to occur. Since forward-looking
statements address future events and conditions, by their very nature, they
involve inherent risks and uncertainties.
While these forward-looking statements, and any assumptions upon which they are
based, are made in good faith and reflect our current judgment regarding the
direction of our business, actual results will almost always vary, sometimes
materially, from any estimates, predictions, projections, assumptions or other
future performance suggestions herein. Except as required by applicable law or
regulation, Minera IRL Limited does not intend to update any forward-looking
statements to conform these statements to actual results.
Quality Assurance and Quality Control Procedures Disclosure
The Company has implemented and maintains a Minera IRL quality assurance/quality
control (QA/QC) protocol on the Ollachea Project to ensure best industry
practice in sampling and analysis of exploration and resource drill core
samples. The insertion of field duplicates, certified standards and blank
samples into the sample stream form part of the MIRL procedure (these act as an
independent check on contamination, precision and accuracy in the analytical
laboratory).
Assay results are reported once rigorous QAQC procedures have been approved.
Independent Audit Programmes
Towards maintaining compliancy with international standards as they pertain to
the minerals industry resource evaluation and estimation procedure, MIRL
regularly contracts the services of industry experts to conduct detailed audits
of established QAQC procedures.
FOR FURTHER INFORMATION PLEASE CONTACT:
Minera IRL
Trish Kent
Vice President, Corporate Relations
+511 418 1230
Canaccord Genuity Limited
(Nominated Adviser & Broker, London)
Adam Miller
+ 44 (0)20 7523 8350
finnCap (Co-broker, London)
Geoff Nash (Corporate Finance)
Matthew Robinson (Corporate Finance)
Joanna Weaving (Corporate Broking)
+ 44 (0)20 7600 1658
RBC Europe Ltd (Co-broker, London)
Stephen Foss
Martin Eales
+44 (0)20 7653 4000
Buchanan (Financial PR, London)
Bobby Morse
Gordon Poole
Louise Mason
+44 (0)20 7466 5000
Hill+Knowlton Strategies (PR, Toronto)
Rick Harari
+1 416 413 4766
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