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

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Prophecy Platinum Corporation – Wellgreen Property – Project 50149-001 In order to quantify the degree of liberation of Cu and Ni minerals and describe mineral textures and associations, the bulk cleaner concentrate and the final products of locked cycle test were also submitted for QEMSCAN analysis. The QEMSCAN results supports split type of flowsheet in which primary roughing is to focus on recovery of the reasonably liberated material. Following the preliminary testing, split flowsheet optimization testwork to optimize the flowsheet through a more detailed program was started. The proposed split flowsheet recommends taking advantage of the parallel cleaner lines presently used in the commercial operations. The strategy would be to direct a rougher concentrate, rich in copper and nickel minerals to one of the lines and to direct a scavenger concentrate, rich in pyrrhotite to the other line. The advantages of decoupling the cleaners would be that collector and CMC conditions could be customized to the floatability of each mineral class. Specifically, the copper and nickel minerals are known to be responsive to very low collector conditions. This low amount of collector is anticipated to result in significant improvements to the flotation separation of copper from nickel. On the other hand, the pyrrhotite is known to require high amounts of collector to recover acceptable levels of sulphides. It is predicted that the proposed flowsheet will result in the production of better quality copper concentrates and better process control in the commercial operation. The viability of the split flowsheet was confirmed by means of locked cycle testing through re-circulation of middling streams. The results indicate production of a bulk concentrate with 12% Cu+Ni grade at the average Cu and Ni recoveries of 88% and 67%, respectively. At the same test conditions the combined Pt, Pd and Au grade of 10.5 g/t at 46%, 73% and 59% recoveries, respectively would be expected. In summary, within the limits imposed by its mineralogy, the ore sample responded very well to the split flowsheet with a basic reagent regime. The Fe/MgO ratio and MgO content of the final concentrate were within the accepted limits in this circuit. The testwork completed thus far on the High Ni Composite show the production of a bulk concentrate with 14.5% Cu+Ni grade at the average Cu and Ni recoveries of 88% and 73%, respectively. At the same test conditions the combined Pt, Pd and Au grade of 9 g/t at 38%, 73% and 62% recoveries respectively, was produced. Based on the results and observations of this test program, a number of recommendations are made for future testing. These additional tests would help to increase the confidence in the metallurgical predictions and to further the development of this material. • It is anticipated that improved performance is possible in terms of Ni and PGE grade and recoveries through better combinations of reagent selection and optimization. • Variability testing extended to: o Production composites, lithology composites, special location and grade variance. Point samples should be used to confirm the developed flowsheet from a geometallurgical perspective. SGS Minerals Services 56
Prophecy Platinum Corporation – Wellgreen Property – Project 50149-001 o Design comminution testing should be considered for proper mill sizing and production forecasting. Selection of specific samples for SAG mill design (including and not limited to JK DWT, SMC, SPI, CWI) and ball mill sizing (BWI). • The collection of additional variability information is recommended through a variability test programme on the samples from various geological origin and grades. • Conduct further grinding tests on more variability composites. SGS Minerals Services 57
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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
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NiEq Cut-off Tonnes NiEq (%) Ni (%)
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Figure 14.2 Wellgreen Platinum, Pal
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Figure 14.4 Wellgreen Platinum, Pal
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Figure 14.6 Wellgreen Pit Resource
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14.1.9 VALIDATION The Wellgreen mod
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Figure 14.9 East Zone Cross Section
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Figure 14.10 Wellgreen Nickel Secti
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Figure 14.14 Wellgreen Platinum Sec
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Figure 14.18 Wellgreen Cobalt Eleva
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14.2 P REVIOUS E STIMATES Table 14.
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15.0 MINERAL RESERVE ESTIMATES A mi
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The selected base case pit contains
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OVERALL O PEN P IT SLOPE ANGLE Tetr
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Table 16.4 Pit Optimization Results
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The pit optimization process includ
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16.4 P RODUCTION S CHDULE Using Pit
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Year Waste (t) Total (t) Strip Rati
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Figure 16.5 Sequence of Development
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PHASE III During Phase III, the pit
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16.5.4 EXPLOSIVES A contractor will
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Table 16.9 Pit Design Criteria Item
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Equipment Fleet Size Units Crew Bus
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Figure 17.1 Overall Wellgreen Proce
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17.2 P ROCESS D ESIGN C RITERIA The
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17.5 P ROCESS P LANT The process pl
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Figure 18.1 Wellgreen Project Overa
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ultimate impoundment surface area o
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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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Figure 19.5 Nickel Demand (2009 to
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20.0 ENVIRONMENTAL STUDIES, PERMITT
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Tailings and mill concentrate sampl
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20.2.4 AQUATIC RESOURCES The Proper
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Figure 20.2 Wildlife Ranges-Woodlan
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Figure 20.4 Wildlife Ranges-Mountai
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Figure 20.6 Wildlife Ranges-Grizzly
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Figure 20.8 Aquatic Resources Proph
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20.3.2 LICENSING The Project will b
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(Transport Canada 2010). New constr
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Table 20.1 Applicable Legislation,
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20.4 M I NE C LOSURE AND R ECLAMATI
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Umbrella Final Agreement, the White
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20.5.2 NON-ABORIGINAL COMMUNITIES T
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21.0 C APITAL AND O PERATING C OSTS
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Mine Equipment 21.2.2 SUSTAINING 20
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Table 21.7 Contingency (US$ million
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• mobilization and demobilization
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Spares • safety including safety
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21.3 O PERATING C OSTS 21.3.1 GENER
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Table 21.11 Summary of Mining Opera
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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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Page 280 and 281: Sample Fraction Mass Size Distribut
Page 282 and 283: Mass (% Chalcopyrite) Prophecy Plat
Page 284 and 285: Mass (% Pentlandite) Prophecy Plati
Page 286 and 287: Mass (% Pyrrhotite) Prophecy Platin
Page 288 and 289: Prophecy Platinum Corporation - Wel
Page 290 and 291: Pyrrhotite Recovery % Prophecy Plat
Page 298 and 299: Cu Rec, % Ni Rec, % Gng Rec, % 100
Page 310 and 311: Grade (%) Cu + Ni Grade (g/t) PGE G
Page 342 and 343: Prophecy, Wellgreen samples 50149-0
Page 344 and 345: OnLine LIMS SGS Lakefield Research
Page 348 and 349: Certificate of Analysis Work Order:
Page 350 and 351: Final : VC120756 Revision REVISED O
Page 354 and 355: Final : VC120590A Revision REVISED
Page 364 and 365: SGS Minerals Services Standard Bond
Page 366 and 367: Project No.: 50149-001 Test No.: MC
Page 368 and 369: SGS Minerals Services STANDARD BOND
Page 370 and 371: SGS Minerals Services Project No. D
Page 376 and 377: Test No.: F1 Project No.: 50149-001
Page 378 and 379: Test No.: F3 Project No.: 50149-001
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Test No.: F5 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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