EMC Metals Corp. (the “Company” or “EMC”) (TSX: EMC) announces
today that it has received a Preliminary Economic Assessment (“PEA”) on
the Company’s 100% owned Nyngan Scandium Project, located in New South
Wales (“NSW”) Australia. The PEA, entitled, NI 43-101F1 Technical
Report on the Feasibility of the Nyngan Scandium Project, prepared
by the engineering firm of Larpro Pty Ltd, of Brisbane, Australia, and
supported by Mining One of Melbourne, Australia and Rangott Mineral
Exploration Pty Ltd of Orange, Australia, confirms the technical and
economic potential of the Nyngan Scandium Project (the “Project”). The
PEA has been independently prepared as a technical report on the
standards prescribed under NI 43-101 F1 Technical Report.
PEA HIGHLIGHTS:
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Capital cost estimate for the Project is US$77.4 million,
-
Operating cost estimate for the Project is US$636/kg scandium oxide,
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Oxide product volume is 35,975 kg per year,
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Project Constant Dollar NPV10% is US$175
million, (NPV8% is US$217 million),
-
Project Constant Dollar IRR is 40.6%,
-
Oxide product grades of 97-99% are estimated, and
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Scandium recovery estimate is 84.3%.
This PEA is preliminary in nature and should not be considered
to be a pre-feasibility or feasibility study, as the economics and
technical viability of the Project have not been demonstrated at this
time. While this PEA does not consider or include any Inferred Mineral
Resources, and does include only Measured and Indicated Resources, it
remains a preliminary analysis that is not sufficient to enable Project
Resources to be categorized as Mineral Reserves. Furthermore,
there is no certainty that the PEA will be realized.
The PEA concludes the Project has the potential to produce 35,975
kilograms of scandium oxide (scandia) per annum, at grades of 97%-99%,
generating an after tax cumulative cash flow over a 20 year Project life
of US$565 million, with an NPV10% of US$175 million. The PEA
also concludes the project can achieve this financial result with a
conventional flow sheet, employing high pressure acid leach (HPAL) and
solvent extraction (SX) techniques, which have been modeled and
validated from METSIM modeling and bench scale/pilot scale metallurgical
test work.
PROJECT OVERVIEW
Project Financial Highlights and Key Assumptions
The PEA
concludes the Project has the potential for robust economics, based on a
capital estimate supported by conventional process designs. The overall
PEA level of accuracy is +/-30%. The PEA is expressed in US dollar (US$)
currency, unless otherwise noted. A foreign exchange rate of US$0.90
(1A$=US$0.90) to United States dollars (US$) was applied in all
conversions. No escalation for inflation was assumed in cash flows. All
cash flows and discounted cash flows (NPVs and IRRs) in this news
release are shown on an after tax basis, based on a 30% tax rate.
Highlights and key assumptions are as follows:
Table 1. Nyngan PEA Financial Highlights
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Summary
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NI 43-101
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Nyngan Project
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PEA
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Key Project Parameters
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Result
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Capital Cost Estimate (US$ M)
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$77.4
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Resource Grade Assumption (ppm)
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371
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Resource Processed (tpy)
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75,000
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Mill Recovery Assumption (%)
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84.3%
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Oxide Production (kg per year)
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35,975
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Scandia Product Grade
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97-99.0%
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Annual Cash Operating Cost (US$ M)
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$22.9
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Unit Cash Cost (US$/kg Oxide)
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$636
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Oxide Price Assumption (US$/kg)
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$2,000
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Annual Revenue (US$ millions)
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$72.0
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Annual EBITDA (US$ millions)
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$47.7
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NPV (10%i)
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$175.6
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NPV (8%i)
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$217.8
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IRR (%)
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40.6%
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Payback (years)
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2.5
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Mineral Resource Estimate
The PEA does not alter the
existing Nyngan Project resource estimate, established in 2010. The NI
43-101 Measured and Indicated scandium resource totals 12 million tonnes
at an average grade of 261ppm scandium, from both limonite and saprolite
resource material. The PEA assumes that a portion of limonite-only
resource, in one particular area of the overall resource, will provide a
20 year mining pit sufficient to supply the processing facility at a
rate of 75,000 tpy and an average grade of 371ppm scandium. A 20 year
mining pit design was developed from drill hole data in support of this
assumption and included in the PEA.
The current Nyngan Project scandium mineral resource is as follows:
Table 2. Nyngan Scandium Resource(1)
Nyngan Project
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Overburden
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NI 43-101 Resource Summary
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Tonnes
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Grade
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Cut-Off Sc
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Ratio
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Category
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(ppm Sc)
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(ppm Sc)
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(t/t)
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Measured Resource
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2,718,000
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274
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100
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0.81:1
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Indicated Resource
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9,294,000
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258
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100
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1.40:1
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Total Resource
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12,012,000
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261
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100
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1.10:1
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|
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NI 43-101 Technical Report on the Nyngan Gilgai Scandium Project,
Jervois Mining
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Limited, Nyngan, New South Wales, Australia, dated March 2010,
(Rangott Mineral
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Exploration Pty Ltd).
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(1) Mineral resources that are not mineral resources do not have
demonstrated economic viability.
Mining and Processing
Mining represents a relatively minor
part of the overall Project activity, based on a plant feed of 240tpd or
75,000 tonnes per year requirement. Mine production is based on
conventional open pit methods, strip ratios of 1.5:1 to 3:1
(overburden/resource), contract mining assumptions and mining activity
in campaigns of one month, three times per year, avoiding the wet
season. The plant will run continuously, fed from field and plant
stockpiles of mined resource, covered against moisture and weather.
The processing plant operations will size the input material, apply high
pressure acid leaching (HPAL) using sulfuric acid, and then recover the
liberated scandium using solvent extraction (SX), oxalate precipitation
and calcination, to generate a finished scandium oxide product. The
output of the plant is forecast at 35,975 kilograms per year, at grades
between 97% and 99%, as Sc2O3. Product output will
be refined to suitable grade for direct sales to end users, recognizing
that grade varies based on application.
Plant tailings will be neutralized with lime to pH 8.5, dewatered, and
stored in a permanent tailings facility meeting the environmental
requirements of mining permits and NSW State regulators.
Capital Cost Detail
Total capital costs for the Project are
estimated at US$77.4 million, and includes a 20% contingency. The
majority (70%) of the capital cost in the PEA was Australian-sourced,
and consequently initially priced in Australian dollars (A$), supported
by direct vendor capital pricing. Concrete and steel costs have been
estimated from concept drawings, and piping, electrical and
instrumentation costs were estimated using standard industry factors.
The capital cost estimate is considered to be +/-30% accuracy. Capital
costs included in overall cash flow include US$2 million per year for
sustaining capital items (US$38M over full PEA term), and US$3M in final
reclamation costs in year 20. No salvage costs were assumed. On the
basis that the resource is adequate for 45 years at the assumed grade,
it is unlikely the Project would be closed in year 20 if current
assumptions remain viable.
Table 3. PEA Capital Cost Detail
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Nyngan Project
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NI 43-101 PEA Result
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Capital Cost Summary
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Capital
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CapEx/Annual
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(US$)
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Cost (US$ M)
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kg Oxide
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Pre-Stripping Cost
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$1.6
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n/a
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Mining Equipment
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contractor
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Mine Vehicles/Site Equipment
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$0.4
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$10
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Processing Plant Equipment
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Ore Preparation
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$2.1
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$58
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HPAL
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$13.7
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$381
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CCD, Ph Adjust
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$5.9
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$164
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Solvent Extraction
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$3.1
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$86
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Product Precipitation
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$1.3
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$37
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Tailings
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$1.3
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$36
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Reagent Storage
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$2.6
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$72
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Water/Steam/Services
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$6.6
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$183
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Plant Subtotal
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$36.6
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$1,019
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Other Site Costs
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Freight and First fills
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$2.1
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$59
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Evaporation Ponds-Tailings Dam
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$6.7
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$186
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Transformer Farm/Buildings
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$2.5
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$69
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On/Offsite Utilities Supply
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$2.2
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$62
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Other Costs Subtotal
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$13.5
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$376
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Owners Costs & Working Cap.
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$4.3
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$118
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EPCM Costs (18%)
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$9.1
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$253
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Contingency (20%)
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$11.9
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$332
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Total Project Capital Cost
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$77.4
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$2,151
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Total (20 Year) Sustaining Capital
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$38.0
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N/A
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Operating Costs Detail
Operating costs were estimated based
on metallurgical test work results and METSIM modelling quantities and
requirements. The single most significant cost item in operating costs
is sulfuric acid, which is used in quantity and requires transport to
site. The second most significant cost item is staff/labor cost.
Reagents in total represent approximately 57% of total operating cash
costs. Quantities were established through METSIM software outputs, and
were 100% vendor-priced. The level of accuracy on the operating
component costing in the PEA is +/-25%.
Operating cost details in the PEA are as follows:
Table 4. PEA Operating Costs, and Unit Costs Per kg Oxide
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Nyngan Project
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NI 43-101 PEA Result
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OpEx Mine/Process Expense
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Annual
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Unit Cost Per
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(US$ millions)
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US$M Cost
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kg Oxide
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Mining Costs
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$1.4
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$38.78
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Processing Cost
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Labor Cost
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$3.9
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$108.13
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Utilities
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$0.8
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$21.96
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Reagents
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$13.0
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$361.53
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Lab Costs
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$0.2
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$6.95
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Consumables
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$1.0
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$27.10
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Total Processing Costs
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$18.9
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$525.67
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Marketing & Insurance
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$0.7
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$18.76
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Maintenance Spend
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$1.3
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$37.02
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Mobile Equipment Cost
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$0.6
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$15.28
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Annual Cash Operating Cost
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$22.9
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$635.51
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Pricing Assumptions
The price assumption in the PEA is
US$2,000 per kilogram (kg), as an average price covering all product
sold, over various product grades. Current pricing is substantially
above these levels, based on small unit quantities and varying grades.
The pricing benchmark applied in the PEA was supported by limited
current trading and pricing information, EMC discussions with potential
customers, and the understanding that lower prices than scandium trades
for today will be necessary to penetrate potential markets with
significant sales tonnages in the future.
Sensitivities
The project is most sensitive to changes in
product pricing, and somewhat less sensitive to either operating cost or
capital cost changes, as shown below.
Table 5. Profitability Sensitivities to Changes in Key
Assumptions
Sensitivity to
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NPV (10%)
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Financial Parameters
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($US M)
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IRR (%)
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PEA RESULT
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$175.6
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40.6%
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Operating Cost Sensitivity
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Cost Increase (10%)
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$163.9
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38.6%
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Cost Decrease (10%)
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$187.4
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42.5%
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Price Sensitivity
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Lower Realized Product Price (10%)
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$139.3
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34.5%
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Higher Realized Product Price (10%)
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$212.0
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46.6%
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Capital Cost Sensitivity
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Higher Capital Cost (10%)
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$169.6
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37.0%
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Lower Capital Cost (10%)
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$181.6
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44.9%
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Fx Sensitivity
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US$/A$ @ $1.00
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$162.6
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38.3%
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US$/A$ @ $0.80
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$188.7
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42.8%
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General Assumptions
The PEA is presented on a 100% ownership
basis. Potential conversion of an existing loan to the Company into a
20% interest at the project level in the Nyngan Scandium Project is a
possibility, but at present the Company retains 100% of the Project.
All cash flows and financial analyses have been presented on a 100%
equity basis. No debt leverage has been assumed in providing capital for
development. No inflation factors have been applied to future cash
flows, making the discounted cash flow performance measures constant
dollar figures. Had inflation been applied to future cash flow streams,
the NPVs and IRRs would have been higher.
The PEA incorporated considerable metallurgical test work independently
prepared for EMC over the previous four years, along with engineering,
project design work and economic estimates done previously for EMC
management. The PEA also utilized existing environmental and detailed
mine planning work previously undertaken on the property, and previously
incorporated in prior management studies. The PEA had the benefit of
prior flow sheet designs, and results, but it did not compare previous
designs. The batch autoclave HPAL design presented in the PEA was the
only design considered.
Conclusions and Recommendations
This PEA consolidates a
significant amount of metallurgical test work and prior study on the
Nyngan Scandium Project. The work demonstrates a viable, conventional
process flow sheet utilizing the HPAL leaching process, and good
metallurgical recoveries of scandium from the resource. The
metallurgical assumptions are supported by various bench and pilot scale
independent test work programs that are consistent with known outcomes
in other laterite resources. Combined with the capital cost estimate,
the Project exhibits robust financial outcomes.
The PEA recommends that project owners proceed to a full feasibility
study, including additional test work to confirm certain key process
variants. Those recommendations include:
-
Consider test work to support process changes that could reduce
capital/operating costs,
-
Conduct a comparative study between batch and continuous autoclave
systems,
-
Consider/test certain alternative reagents/techniques in the solvent
extraction area,
-
Conduct test work to develop engineering parameters around the
materials handling properties of the laterite resource as it relates
to optimum sizing for best leach results, and
-
Conduct test work on pumping and settling properties of process
slurries.
George Putnam, CEO of EMC Metals, commented:
“This PEA
represents the first public disclosure by EMC of the economics of the
Nyngan Project, and we are very happy with both the financial and
operational result. The good mineral recovery from HPAL shows the flow
sheet to be well chosen, and the modest capital estimate and output
reflects an appropriate size project with which to initiate scandium
market growth. This PEA puts EMC on a fast track to complete a
feasibility study in 12 months and be first to production with an
appropriate scale scandium project by Q1 2017.“
William Harris, Chairman of EMC Metals, commented:
“With
this scandium project, EMC has the ability to satisfy waiting markets
for a specialty metal that has never been available in quantities that
meet commercial minimums. With this PEA, EMC demonstrates that work done
over the previous four years can now be consolidated into a rapid
development schedule that positions Nyngan to meet this opportunity,
profitably. We are enthusiastic about the potential of this project for
the Company and its shareholders.”
QUALIFIED PERSONS AND NI 43-101 TECHNICAL REPORT
A NI 43-101 compliant
Technical Report, entitled NI 43-101 F1
Technical Report on the Feasibility of the Nyngan Scandium Project
(‘the Report”) will be filed on SEDAR within 45 days. Larpro Pty Ltd of
Brisbane, Australia is the principal author, under the supervision of
Steve Laracy (MD, Larpro) and Nigel Ricketts, Phd., Metallurgy and CP,
AusIMM, who is a Qualified Person in accordance with NI 43 101,
Standards of Disclosure for Mineral Projects.
Sections of the Report dealing with property description and location,
accessibility, history, geological setting, deposit type, exploration,
drill programs, sample preparation and security, and data verification
were completed by Rangott Mineral Exploration Pty Ltd, of Orange, NSW,
Australia, where the principal author was Maxel Rangott, a
Fellow of the AusIMM, who is a Qualified Person in accordance with NI 43
101, Standards of disclosure for Mineral Projects.
Sections of the Report dealing with mining and reserve calculations were
completed by Mining One, of Melbourne, Victoria, Australia, where the
principal author was Stuart Hutchin, BSc (Applied Geology) and member of
the AusIMM, who is a Qualified Person in accordance with NI 43 101,
Standards of disclosure for Mineral Projects.
Willem Duyvesteyn, Director and CTO of EMC Metals Corp., and a QP as
defined by NI 43-101, and John Thompson, VP Project Development for EMC
Metals Corp, and a QP as defined by NI 43-101 are both Company QP’s and
have reviewed this press release. Each of Nigel Ricketts, Maxel Rangott
and Stuart Hutchin have also reviewed and approved the technical
disclosure in this press release.
ABOUT EMC METALS
EMC is focused on developing the Nyngan
Scandium Project into the world’s first scandium-only producing mine.
The Company owns a 100% interest in both the Nyngan Scandium Project,
and the adjacent Honeybugle Scandium Property, in New South Wales,
Australia. EMC’s interest in both Nyngan and Honeybugle can potentially
be reduced to 80% in the future, based on certain current granted option
rights.
The Company filed a NI 43-101 Measured and Indicated Resource on the
Nyngan Project in 2010, has completed extensive metallurgical test work
on the resource, and intends to produce and complete a Feasibility Study
on the project in late 2015. In addition, EMC owns a 100% interest in
the Tordal Scandium/REE property in southern Norway, where we continue
our exploration efforts, specifically for scandium and REE minerals.
For additional information please contact:
EMC Metals Corp.
Investor Relations; (775)-233-7328 or (925)
208-1775 or info@emcmetals.com
No stock exchange, securities commission or other regulatory
authority has approved or disapproved the information contained herein.
This press release contains forward-looking information that does
involve various risks and uncertainties regarding future events. Such
forward-looking information can include without limitation statements
regarding the short term or long term economic feasibility of scandium
production at our Nyngan scandium project, and in general, statements
based on current expectations involving a number of risks and
uncertainties and are not guarantees of future performance.
Forward-looking information in this press release is based on estimates
and opinions of management and qualified persons as defined in NI 44-101
that are providing technical services to EMC, on the dates they are made
and are expressly qualified in their entirety by this notice, and by
other risk factors disclosed in our public filings. Such statements
include metal price assumptions, cash flow forecasts, projected capital
and operating costs, metal or mineral recoveries, mine life, production
rates and the results of HPAL modelling and testing. Any of these
and other assumptions and forecasts may change due to reasons that
impact the industry generally, such as Scandium pricing, or for reasons
specific to the project. Except as required by law, EMC assumes no
obligation to update forward-looking information should circumstances or
management's estimates or opinions change.
Copyright Business Wire 2014