Wellgreen Project Preliminary Economic Assessment ... - OTCIQ.com

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As of September 2011, the generating capacity of the Yukon Electrical Company Limited (YECL) is 112 MW (75 MW from hydroelectric power generation stations, 36 MW from diesel generators and 1 MW from wind turbines). YEC is exploring the possibility of increasing its hydroelectric generating capacity by 30 to 40 MW between 2012 and 2020. Drawing power from the YEC power grid will not be sufficient for the Project power demand at present. Therefore several options for on-site power generation without a connection to a power grid were considered for the property of the Project. After overall evaluation (based on the criteria of the levelized cost of electricity (LCOE)), fuel supply availablity, power supply availability and continuity of service, constructability, ease of operation, maintainability, safety, and emission from combustion), a CHP plant with diesel fuel generator has been selected for the Wellgreen PEA. Fuel supply is assumed to be diesel natural gas which will be delivered by truck to the plant. The total power demand for the Project is estimated to be 40 MW which includes allowances of 10% for the power plant load, losses, contingency and future loads. A power plant consisting of 6x10 MW (site condition performance) low speed engine generator sets (N+1), operating at 13.8 kV, 60 Hz output voltage, is considered sufficient to meet this demand. Recovered heat energy from the CHP plant will be used for heating the process plant area infrastructure. The LCOE for the Wellgreen PEA is estimated to be Cdn$0.28/kWh. 18.4 P ROPOSED T AILINGS S TORAGE All tailings dams will be constructed of compacted rock fill using the downstream method with a geomembrane liner on the upstream face. The tailings impoundment footprint will be lined with a low density polyethylene liner over a layer of broadly graded silty sand and gravel, to act as low permeability bedding material and provide secondary containment. Material for construction will be sourced from the site during initial construction and from the open pit, for the later raises during operations. Based on the tailings storage requirements, the starter dams required to store one year of tailings plus freeboard will be 2.25 m high based on a conservative “rate of rise” for the dam. The final wall height will be 60 m. In Year 28, a second impoundment will be built to contain the remaining tails. The TMF will have an ultimate capacity of approximately 280 Mm 3 , corresponding to an Prophecy Platinum Corp. 18-3 1193460500-REP-R0001-02 Wellgreen Project Preliminary Economic Assessment, Yukon, Canada
ultimate impoundment surface area of 555 ha. The total catchment area of the TMF will be 740 ha. Water dams are required during the construction period and initial years of operation. They will protect the lined upstream faces of the tailings starter dams from significant flood events, provide a reliable source of fresh water during operation of the process plant, and minimize runoff from the TMF. The water dams will be incorporated into the downstream toe of the dam and have been planned so that they will be constructed simultaneously with the starter dams before tailings placement. Prophecy Platinum Corp. 18-4 1193460500-REP-R0001-02 Wellgreen Project Preliminary Economic Assessment, Yukon, Canada
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Report to: Wellgreen Project Prelim
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TABLE OF CONTENTS 1.0 SUMMARY .....
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14.1.8 MINERAL RESOURCE TABULATION
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26.1.2 PHASE 2 - QUILL CREEK ULTRAM
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Table 19.2 Palladium Demand and Sup
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Figure 19.3 London Metals Exchange
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litres per minute .................
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International All-North Resources L
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1.0 S UMMARY 1.1 I NTRODUCTION Tetr
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This PEA has been prepared by Tetra
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Numerous operators have worked on t
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1.6 M INING M ETHODS The Project is
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Figure 1.2 Wellgreen Project Overal
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Table 1.6 Capital Cost Summary (US$
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The following financial results wer
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Figure 1.3 illustrates that the Pro
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Figure 1.5 Project Execution Plan P
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2.0 INTRODUCTION Tetra Tech was com
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3.0 RELIANCE ON OTHER EXPERTS Tetra
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Figure 4.1 Location Map Prophecy Pl
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All work undertaken on the surface
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Figure 4.3 Wellgreen Surface Lease
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Other than those liabilities set fo
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5.3 C LIMATE The climate is alpine,
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Year Company Activities 1970 Hudson
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Year Company Activities 2008 Corona
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6.2.3 NORTHERN P LATINUM 2009 PROGR
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Figure 7.1 Regional Geology Map Pro
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Figure 7.3 Property Geology Prophec
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Longitudinal faults and/or shears a
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Figure 7.4 Wellgreen Plan View Prop
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7.2.3 NORTH ZONE The North Zone is
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Table 7.3 PGE-Bearing Minerals in t
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Gabbroid-associated Nickel, Copper,
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10.0 DRILLING 10.1 H ISTORICAL D RI
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Figure 10.1 Prophecy Platinum Drill
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Table 10.4 Prophecy Platinum 2011 D
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• The course rejects returned fro
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Figure 10.4 Core Storage Facility P
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11.0 SAMPLE PREPARATION, ANALYSES,
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12.0 DATA VERIFICATION Tetra Tech
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Table 12.2 Check Assays Prophecy Pl
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13.0 MINERAL PROCESSING AND METALLU
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An elemental analysis of typical co
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Minerals Peridotite Composite 1 Min
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Ni Deposits” shows that the grade
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13.3 SGS V ANCOUVER - J UNE 2012 A
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14.0 MINERAL RESOURCE ESTIMATES 14.
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Table 14.3 summarizes the grade cap
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The NiEq value was assigned to all
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Table 14.7 Wellgreen Variogram Summ
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Table 14.9 Estimation Criteria Zone
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Table 14.10 Search Parameters Zone
Page 107 and 108: NiEq Cut-off Tonnes NiEq (%) Ni (%)
Page 109 and 110: Figure 14.2 Wellgreen Platinum, Pal
Page 111 and 112: Figure 14.4 Wellgreen Platinum, Pal
Page 113 and 114: Figure 14.6 Wellgreen Pit Resource
Page 115 and 116: 14.1.9 VALIDATION The Wellgreen mod
Page 117 and 118: Figure 14.9 East Zone Cross Section
Page 119 and 120: Figure 14.10 Wellgreen Nickel Secti
Page 121 and 122: Figure 14.14 Wellgreen Platinum Sec
Page 123 and 124: Figure 14.18 Wellgreen Cobalt Eleva
Page 125 and 126: 14.2 P REVIOUS E STIMATES Table 14.
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Page 129 and 130: The selected base case pit contains
Page 131 and 132: OVERALL O PEN P IT SLOPE ANGLE Tetr
Page 133 and 134: Table 16.4 Pit Optimization Results
Page 135 and 136: The pit optimization process includ
Page 137 and 138: 16.4 P RODUCTION S CHDULE Using Pit
Page 139 and 140: Year Waste (t) Total (t) Strip Rati
Page 141 and 142: Figure 16.5 Sequence of Development
Page 143 and 144: PHASE III During Phase III, the pit
Page 145 and 146: 16.5.4 EXPLOSIVES A contractor will
Page 147 and 148: Table 16.9 Pit Design Criteria Item
Page 149 and 150: Equipment Fleet Size Units Crew Bus
Page 151 and 152: Figure 17.1 Overall Wellgreen Proce
Page 153 and 154: 17.2 P ROCESS D ESIGN C RITERIA The
Page 155 and 156: 17.5 P ROCESS P LANT The process pl
Page 157: Figure 18.1 Wellgreen Project Overa
Page 161 and 162: Table 19.2 Palladium Demand and Sup
Page 163 and 164: Figure 19.3 London Metals Exchange
Page 165 and 166: Figure 19.5 Nickel Demand (2009 to
Page 167 and 168: 20.0 ENVIRONMENTAL STUDIES, PERMITT
Page 169 and 170: Tailings and mill concentrate sampl
Page 171 and 172: 20.2.4 AQUATIC RESOURCES The Proper
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Page 175 and 176: Figure 20.4 Wildlife Ranges-Mountai
Page 177 and 178: Figure 20.6 Wildlife Ranges-Grizzly
Page 179 and 180: Figure 20.8 Aquatic Resources Proph
Page 181 and 182: 20.3.2 LICENSING The Project will b
Page 183 and 184: (Transport Canada 2010). New constr
Page 185 and 186: Table 20.1 Applicable Legislation,
Page 187 and 188: 20.4 M I NE C LOSURE AND R ECLAMATI
Page 189 and 190: Umbrella Final Agreement, the White
Page 191 and 192: 20.5.2 NON-ABORIGINAL COMMUNITIES T
Page 193 and 194: 21.0 C APITAL AND O PERATING C OSTS
Page 195 and 196: Mine Equipment 21.2.2 SUSTAINING 20
Page 197 and 198: Table 21.7 Contingency (US$ million
Page 199 and 200: • mobilization and demobilization
Page 201 and 202: Spares • safety including safety
Page 203 and 204: 21.3 O PERATING C OSTS 21.3.1 GENER
Page 205 and 206: Table 21.11 Summary of Mining Opera
Page 207 and 208: Mine Operations Position No. Annual
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22.0 ECONOMIC A NALYSIS 22.1 I NTRO
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Table 22.3 Metal Production from th
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Table 22.4 Summary of Pre-tax Finan
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22.4 M ETAL P RICE S CENARIOS The L
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Figure 22.3 IRR Sensitivity Analysi
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Figure 23.1 Adjacent Properties Pro
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Figure 24.1 Wellgreen Project Execu
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25.2 M INING Table 25.1 Wellgreen R
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Table 25.4 Process Capital Cost Sum
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Table 26.1 Wellgreen Expansion Budg
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26.2 M INING sample selection shoul
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Trade-off studies should be complet
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• develop a negotiation strategy
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METALLURGY Davis, David and Bruwer,
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Yukon Environmental and Socio-econo
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TODD MCCRACKEN, P.GEO. I, Todd McCr
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PHILIP BRIDSON, P.ENG. I, Philip Br
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APPENDIX A L IST OF C LAIMS
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District GrantNumber RegType ClaimN
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Certificate of Analysis First issue
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Hf µg/g 0.5 4 / 20 Ho µg/g 0.2 3
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assess laboratory results, users ar
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Constituent Unit Mean Table 2 - Pro
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Table 3 - Informational Values Cons
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CERTIFYING OFFICER ________________
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An Investigation into METALLURGICAL
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Prophecy Platinum Corporation - Wel
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Sample Fraction Mass Size Distribut
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Mass (% Chalcopyrite) Prophecy Plat
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Mass (% Pentlandite) Prophecy Plati
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Mass (% Pyrrhotite) Prophecy Platin
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Pyrrhotite Recovery % Prophecy Plat
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Cu Rec, % Ni Rec, % Gng Rec, % 100
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Grade (%) Cu + Ni Grade (g/t) PGE G
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Prophecy, Wellgreen samples 50149-0
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OnLine LIMS SGS Lakefield Research
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Certificate of Analysis Work Order:
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Final : VC120756 Revision REVISED O
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Final : VC120590A Revision REVISED
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SGS Minerals Services Standard Bond
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Project No.: 50149-001 Test No.: MC
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SGS Minerals Services STANDARD BOND
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SGS Minerals Services Project No. D
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Test No.: F1 Project No.: 50149-001
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Test No.: Sep-F1 Project No.: 50149
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Test: F30 Project: 11603-005 50149-
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Test: F32 Project: 11603-005 50149-
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Test: F34 Project: 11603-005 50149-
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Test: F36 Project: 11603-005 50149-
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Test: F38 Project: 11603-005 50149-
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Test No.: HNI-F1 Project No.: 50149
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Test: HNI-F3 Project: 11603-005 501
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Test: HNI-F5 Project: 11603-005 501
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Test: LCT-1 Project: 50149-001 Date
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Test: LCT-1 Overall Stability Total
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Test: LCT-2 Metallurgical Predictio
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Test: LCT-4 Project: 50149-001 Date
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Test: LCT-4 Overall Stability Total
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Prophecy Platinum Corp 50149-101 MI
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Mineral Abundance (wt.%) 100 90 80
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CAVM-50149-101 MI7018-MAR12 Sample
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CAVM-50149-101 MI7018-MAR12 Sample
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erra Mineralogical Services Inc. Mi
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TerraMS-12JUL-001 Wellgreen - Pt-Pd
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APPENDIX D M INING
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LG Phase Revenue Factor (%) Mineral
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Figure 3 Overall Ultimate Pit Produ
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Table 3 Penetration and Drilling Ra
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HAULAGE General Hauling Conditions
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Year Mechanical Availability (%) Us
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