Mr. Gregory Bowes reports
NORTHERN GRAPHITE ANNOUNCES POSITIVE BANKABLE FEASIBILITY STUDY
Northern Graphite Corp. is releasing the results of its bankable feasibility study for its 100-per-cent-owned Bissett Creek graphite deposit. The feasibility study was prepared by GMining Services Inc. and included contributions from SGS Canada Inc. (Lakefield -- metallurgy; Geostat -- resource modelling), Knight Piesold Ltd. (environmental, permitting, tailings management and road infrastructure) and Met-Chem Canada Inc. (process engineering). A conference call will be held at 9 a.m. Eastern Standard Time on July 10, 2012, to discuss the feasibility study results (see details below). A National Instrument 43-101 technical report relating to the feasibility study will be filed on SEDAR within 45 days of this news release.
Gregory Bowes, chief executive officer, commented, "The FS confirms the technical and financial viability of constructing and operating an open pit mine and a 2,300-tonne-per-day processing plant on the Bissett Creek property and establishes Northern Graphite as an industry leader with a large-flake, high-purity, scalable deposit that is located close to infrastructure and has very competitive operating costs." He added, "This is a conservative and realistic study that indicates the project has attractive economics and that there are a number of immediate, low-risk opportunities to further enhance project returns."
SUMMARY OF FEASIBILITY STUDY RESULTS -- Q1 2012
Probable reserves (tonnes) 18,977,000
Grade (graphitic carbon) 1.89%
Waste-to-ore ratio 0.50
Processing rate 2,300 tpd (92% availability)
Mine life 23 years
Mill recovery 94.7% (years 3 to 23)
Average annual production
(tonnes of graphite
concentrate at 94.5% C) 18,600 (first five years)
(including $9.4M
Capital cost ($ millions) 102.9 contingency)
Mine cash operating costs ($
per tonne of concentrate) 851 (first five years)
Mine cash operating costs ($
per tonne of concentrate) 968 (mine life)
Mining costs ($ per tonne of
ore) 5.79 (mine life)
Processing costs ($ per tonne
of ore) 9.60 (mine life)
General and administrative
costs ($ per tonne of ore) 2.94 (mine life)
CDN/U.S. dollar exchange rate 1.00
Graphite prices (U.S. $ per
tonne) 2,800 2,600 2,300 2,100
Pretax net present value at
8% ($ millions) 182.8 151.0 103.5 71.7
Pretax IRR (%) 25.9 23.1 18.7 15.6
After-tax net present value
at 8% ($ millions) 125.0 103.2 69.9 46.9
After-tax IRR (%) 22.4 20.0 16.4 13.7
Prices of $2,100 (U.S.) and $2,600 (U.S.) per tonne of concentrate represent the 24-month and 12-month weighted-average price for the various sizes and grades of flake graphite that will be produced from the Bissett Creek deposit, based on prices quoted by Industrial Minerals Magazine. Prices of $2,300 (U.S.) per tonne and $2,800 (U.S.) per tonne represent the 24-month and 12-month weighted-average prices with the inclusion of a conservative 10-per-cent premium over plus-80-mesh large-flake graphite prices for the plus-50-mesh (extra-large) and plus-32-mesh (extra-extra-large) flake components that will make up approximately 50 per cent of Bissett Creek production. The company believes that it will realize premiums in excess of 20 per cent over the price of standard large-flake graphite based on historical pricing for extra-large and extra-extra-large flake graphite.
Project description
The proposed development of the Bissett Creek graphite deposit includes the construction of an open pit mine, a 2,300-tonne-per-day flotation processing plant based on 92-per-cent availability, a natural gas-fuelled power generating plant and associated infrastructure. The processing plant will consist of conventional crushing, grinding and flotation circuits followed by concentrate drying and screening. The company plans to build a natural gas pipeline to the site from the main Trans-Canada line which is approximately 15 kilometres away. The natural gas will fuel five 1.0-megawatt generators to produce electrical power, and waste heat from the generators will be used to dry the concentrate. This will result in low overall energy costs. Infrastructure includes upgrading the last five kilometres of access road, site preparation, and building a non-acid-generating tailings facility and a very small sulphide tailings facility. The processing plant will include sulphide flotation at the end of the circuit to remove enough sulphides to make approximately 97 per cent of the tailings benign. After year 12 of operation, the sulphide tailings will be moved to the bottom of a mined-out pit for permanent storage under water. Sulphide tailings and non-sulphide tailings will subsequently continue to be deposited in a mined-out pit for the balance of the mine life which will result in a low final closure costs.
Resources and reserves
Probable mining reserves for the Bissett Creek deposit were established based on indicated resources estimated as at September, 2011, by Francois Thibert, MSc, PGeo, from SGS Canada Inc., an independent qualified person under NI 43-101, using the Canadian Institute of Mining, Metallurgy and Petroleum Standards on Mineral Resources and Reserves, Definitions and Guidelines.
G Mining established a break-even cut-off grade and ran optimized Whittle pits on the indicated resources based on a number of parameters including those outlined in the table. The final mine plan resulted in a probable reserve of 19.0 million tonnes of ore grading 1.89 per cent graphitic carbon (Cg) based on a cut-off grade of 1.2 per cent Cg. In order to increase head grades in the initial years of production while maintaining a reasonable stripping ratio, ore between 1.2 per cent Cg and 1.6 per cent Cg will be partially stockpiled and added to the mill feed at a later date. The mine plan was also designed to supply blasted rock and glacial till for tailings dam construction during preproduction and to allow for tailings disposal in mined-out areas by year 13 for sulphide tailings and year 16 for non-sulphide tailings. A mining recovery factor of 90 per cent and a dilution factor of 7.8 per cent at a grade of 0.5 per cent Cg were applied.
Metallurgy
SGS-Lakefield has completed the full suite of metallurgical tests on the Bissett Creek deposit including lab and bench-scale work, a bulk sample/pilot-plant test, and variability testing to ensure recoveries and flake-size distribution are consistent across the deposit. A similar program was also carried out in the 1980s as part of a previous feasibility study (non-NI 43-101-compliant) with consistent results.
The FS is largely based on pilot-plant results from the processing of slightly weathered material that does not respond as well to flotation as unweathered rock. The locked-cycle tests, which were performed on fresh drill core, were better in terms of recoveries, concentrate grades and flake-size distribution, which represents potential upside in the project.
The FS assumes recoveries of 92.7 per cent in the first year of operation, 93.7 per cent in year two and 94.7 per cent over the balance of the project. Recoveries in the eight locked-cycle tests averaged 97.2 per cent and ranged from 95.2 per cent to 99.1 per cent.
The FS assumes an average concentrate grade of 94.5 per cent compared with 94.9 per cent in the locked-cycle tests. However, the locked-cycle tests generated average grades of 98.1 per cent, 97.0 per cent and 95.1 per cent for the important plus-32 (extra-extra-large), plus-50 (extra-large) and plus-80 (large) mesh size fractions respectively.
Based on pilot-plant results, the FS assumes that production will consist of 18 per cent plus-32 mesh at 95.1 per cent C, 31 per cent plus-50 mesh at 95.1 per cent C, 28.2 per cent plus-80 mesh at 94.5 per cent C, 5 per cent plus-100 mesh at 97.3 per cent C, 7 per cent plus-150 mesh at 98 per cent C and 11 per cent minus-150 mesh at 92.7 per cent carbon.
Production
Over the first five full years of operation, a total of 4.2 million tonnes of ore will be processed at an average head grade of 2.22 per cent Cg to produce an average of 18,600 tonnes of graphite concentrate at 94.5 per cent C per year. Over the 23 years of operations contemplated in the FS, the mine will produce an average of approximately 15,900 tonnes of graphite concentrate (94.5 per cent C) per year, which includes processing of the low-grade stockpile.
Operating costs
Over the first five years, cash mine operating costs will average $851 per tonne of concentrate. Over the life of the project, operating costs are estimated at $968 per tonne of concentrate. These estimates are based on operating costs per tonne of ore of $9.60 for processing, $2.94 for general and administrative costs, and $5.79 for mining.
Capital costs
The capital cost to construct the processing plant, power plant and all associated mine infrastructure is estimated at $93.5-million before contingency. The total capital cost, including a $9.4-million contingency, is $102.9-million. In some instances the company chose options that increased the capital cost but reduced operating costs and improved the overall project economics. In addition, the company is required to post a financial assurance with the province of Ontario to guarantee its obligations with respect to the mine closure plan. The amount and timing of the financial assurance are currently being negotiated.
CAPITAL COSTS (MILLIONS OF DOLLARS)
Power plant and pipeline $11.7
Infrastructure 9.3
Mobile equipment 1.7
Tailings and water management 6.7
Processing plant 39.9
EPCM and construction indirects 14.2
General services and other 5.8
Preproduction and commissioning 4.2
Subtotal 93.5
Contingency 9.4
Total 102.9
PROJECT SENSITIVITIES (PRETAX)
$2,800 $2,600 $2,300 $2,100
NPV (i) IRR NPV (i) IRR NPV (i) IRR NPV (i) IRR
Base case $182.8 25.9% $151.0 23.1% $103.5 18.7% $71.7 15.6%
Grade +10% $219.0 28.2% $184.7 25.4% $133.2 21.0% $98.9 17.9%
Operating
costs -10% $198.0 27.2% $166.2 24.4% $118.7 20.1% $86.9 17.1%
Operating
costs +10% $167.6 24.6% $135.8 21.7% $88.3 17.3% $56.5 14.1%
Capex -10% $193.0 28.5% $161.3 25.5% $113.7 20.8% $82.0 17.5%
Capex +10% $172.5 23.6% $140.8 21.0% $93.2 16.9% $61.5 14.0%
(i) In millions of dollars at 8 per cent.
Project opportunities
It is the opinion of Northern Graphite management that a number of significant, low-risk opportunities exist to improve upon the FS. A 10-per-cent increase in grade and a 10-per-cent reduction in operating costs, for example, both of which management believes are achievable for the reasons outlined below, would increase the pretax IRR by up to 20 per cent and the NPV by up to 40 per cent:
- The final pit includes approximately 1.5 million tonnes of inferred
resources grading 1.54 per cent Cg which are treated as waste. The processing of
this material would reduce the stripping ratio and mining costs and
improve cash flows.
- The mine plan does not consider inferred resources outside the pit where
significant tonnages in excess of 2 per cent Cg exist. Upgrading these resources
to indicated and including them in a revised mine plan, instead of
processing the low-grade stockpile, would reduce costs, greatly extend
the mine life, and further enhance the economics of the deposit. The preliminary economic assessment on the Bissett Creek project states
there is a relatively high probability that inferred resources can be
upgraded due to the thick, flat-lying and continuous nature of the
mineralization in the Bissett Creek deposit. Mineral resources that are
not mineral reserves do not have demonstrated economic viability.
- Actual graphite production from the pilot plant was approximately 4 per cent
higher than indicated by the assayed head grade of the bulk sample while
graphite production from eight locked-cycle tests was approximately 12 per cent
higher than the assayed head grades. The bulk sample consisted of
partially weathered near-surface material which does not respond as well
to flotation while the locked-cycle tests were performed using fresh
drill core. Therefore, the reserve grade is considered conservative and
potentially understated. Further investigation of assay procedures and
mineralogy is planned to explain the understatement but sufficient
testing has been done for the company to conclude that the performance
of the mill will likely exceed levels used in the FS.
- The FS assumed contract mining. It is highly likely the company will buy
and operate its own mining fleet. The incremental capital cost is
approximately $7-million but with lease financing, and a 20-per-cent down payment,
the incremental financing requirement is approximately $1.4-million.
Owner mining would reduce operating costs by approximately $50 per tonne
of concentrate.
- The company expects to achieve 95-per-cent mill recoveries earlier than
projected in the FS and ultimately to exceed the 95-per-cent level, and to do
better than the 92-per-cent mill utilization rate used in the FS.
- The company's business plan is to significantly expand production in the
future by incorporating inferred resources and to reduce unit costs
below $800 per tonne of concentrate. Inferred resources are considered too
speculative geologically to have the economic considerations applied to
them that would enable them to be categorized as mineral reserves, and
there is therefore no certainty that the company's business plan in this
regard will be realized. Mineral resources that are not mineral reserves
do not have demonstrated economic viability.
- There is scope to reduce capital costs through the purchase of used
equipment, lease financing of the natural gas generators and additional
permitting to provide access to lower-cost tailings options.
- The company has successfully upgraded graphite concentrate from the
Bissett Creek deposit for use in lithium-ion batteries and other high-purity markets. Testing is continuing and will assist the company in
defining the capital and operating costs associated with constructing an
upgrading facility. No revenues or costs associated with upgrading and
selling into value-added markets are included in the FS. Industrial
Minerals Magazine recently reported that spherical graphite used in
lithium-ion batteries sells for $6,000 (U.S.) to $8,000 (U.S.) per tonne.
Environmental, permitting and local community
The company expects to file its mine closure plan with the Ministry of Northern Development and Mines within three weeks. The MCP is a comprehensive document that describes in detail the scope of the project, including the nature of mining and processing operations; buildings and infrastructure; potential effects on the environment; mitigation measures to protect the environment; a description of first nation, government agency and local community consultation; and the company's plan to rehabilitate the site and return it to its natural state at the end of operations including an estimate of the cost of doing so. The company is required to post a financial assurance to ensure that funds are available to complete the closure plan. The MNDM has 45 days to respond and the company anticipates that acceptance and approval of the MCP will be received by the end of the third quarter of this year. Approval of the MCP will enable the company to initiate construction and to apply for a number of other permits that relate to operations.
Qualified persons
The FS was prepared in accordance with NI 43-101 standards by G Mining Services. Louis Gignac, Ing; Nicolas Menard, Ing; Antoine Champagne, Ing; Ahmed Bouajila, Ing; Robert Menard, Ing; and Robert Marchand, Ing, are the independent qualified persons under NI 43-101 who were responsible for preparing the FS on behalf of G Mining Services. The scientific and technical information in this news release has been reviewed and approved by Louis Gignac, Ing, president of G Mining Services.
This news release has also been reviewed and approved by Don Baxter, PEng, president of the company and a non-independent qualified person under NI 43-101.
Readers should refer to the NI 43-101 technical report relating to the FS for further details of the project development. The technical report will be filed on SEDAR within 45 days of this news release in accordance with NI 43-101.
The graphite market
Graphite production and exports from China, which produces 70 per cent of the world's supply, are expected to decline, and an export tax and a licensing system have been instituted. As a result, both the European Union and the United States have declared graphite a supply critical mineral, and end-users are actively seeking secure, alternative sources of quality supply.
Graphite demand and prices have increased substantially over the past few years due to the continuing modernization of China and other emerging economies, which has resulted in strong demand from traditional steel and automotive markets. In addition, new applications such as lithium-ion batteries, vanadium redox batteries, fuel cells and nuclear power have the potential to create significant incremental demand growth. The manufacturing of lithium-ion batteries requires up to 30 times more graphite than lithium and their use in the growing EV/HEV market is expected to require significant increases in graphite production.
Conference call
The company has scheduled a conference call to discuss the FS at 9 a.m. Eastern Standard Time (EST) on Tuesday, July 10, 2012. Gregory Bowes, chief executive officer, and Don Baxter, PEng, president of Northern Graphite, will host the call and invite analysts and investors to participate.
Time: 9 a.m. Eastern Standard Time
Dial-in number: 800-734-8507
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