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

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Prophecy Platinum Corporation – Wellgreen Property – Project 50149-001 1.7%-2%, respectively. Thus, the rougher flotation upgrading index for copper is between 4.5 and 5.5 and that of nickel is between 4 and 4.8, this is a reflection of the high mass pull used. • The distribution of pyrrhotite, which is the main iron sulphide mineral in the ore, appears to have a close correlation with nickel recovery. The pyrrhotite content of the bulk concentrate reached a maximum level at 18.8%. Contrary to both copper and nickel, pyrrhotite grade continuously increased as the flotation time increased. • The pulp pH was at a natural level of about 9 in the primary flotation tests. This pH is not high enough to depress pyrrhotite. Pentlandite flotation is also expected not to be negatively affected at this pH. Sodium Isopropyl Xanthate was used as the main collector and it was stage added to the flotation cell with the total addition of 70 g/t. Details are shown in Appendix E. • Pt and Pd recoveries were slightly higher at coarser primary grind size of 144 microns. • While Cu and Ni kinetics were seen to be quicker in the test F6, the final recoveries were ultimately the same. 4.1.1.2. Effect of Pulp Chemistry In addition to SIPX, collector PAX was tested. PAX is particularly effective for a stronger collector and it is non-selective collector which also renders Mg minerals to float. SIPX has the potential to improve the selectivity of nickel sulphide flotation therefore increase the nickel recovery. The effects of this collector on copper, nickel, and PGM recoveries are shown in Figure 19. SGS Minerals Services 26
Recovery, % Recovery, % 100 80 60 40 20 Prophecy Platinum Corporation – Wellgreen Property – Project 50149-001 Rougher Kinetics, Cu 0 0 2 4 6 8 10 12 14 16 18 20 22 100 80 60 40 20 Time, min Rougher Kinetics, Pt 0 0 2 4 6 8 10 12 14 16 18 20 22 Time, min Recovery, % 100 80 60 40 20 100 g/t SIPX 80 g/t PAX 70 g/t SIPX Higher pH 100 g/t SIPX 80 g/t PAX 70 g/t SIPX Higher pH Recovery, % Recovery, % 100 80 60 40 20 SGS Minerals Services Rougher Kinetics, Ni 0 0 2 4 6 8 10 12 14 16 18 20 22 100 80 60 40 20 Rougher Kinetics, Au 0 0 2 4 6 8 10 12 14 16 18 20 22 Time, min Time, min Rougher Kinetics, Pd 0 0 2 4 6 8 10 12 14 16 18 20 22 100 g/t SIPX 80 g/t PAX 70 g/t SIPX Higher pH Time, min Figure 19: Effect of Pulp Chemistry on Rougher Flotation The following results can be extracted from the test results: • SIPX provided the same copper recovery as PAX. 100 g/t SIPX 80 g/t PAX 70 g/t SIPX Higher pH 100 g/t SIPX • With SIPX, nickel recovery was higher within the first 10 minutes of the flotation; however the final recoveries were ultimately the same. • Pyrrhotite distribution in the bulk concentrate decreased to 57% when PAX was used in comparison with SIPX which pyrrhotite recovery was 73%. • Higher pH did not show any better results than the natural pH. • SIPX provided better overall recoveries of sulphides and was used in further tests. 4.1.1.3. Effect of Talc Pre-float and CMC as Silicate Depressant As the flotation testwork continued it was noticed that talc and floatable silicate material in the ore was causing problems during flotation and the dilution of concentrate was possible. In order to improve copper 80 g/t PAX 70 g/t SIPX Higher pH 27
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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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District GrantNumber RegType ClaimN
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Page 256 and 257: Certificate of Analysis First issue
Page 258 and 259: Hf µg/g 0.5 4 / 20 Ho µg/g 0.2 3
Page 260 and 261: assess laboratory results, users ar
Page 262 and 263: Constituent Unit Mean Table 2 - Pro
Page 264 and 265: Table 3 - Informational Values Cons
Page 266 and 267: CERTIFYING OFFICER ________________
Page 268 and 269: An Investigation into METALLURGICAL
Page 270 and 271: Prophecy Platinum Corporation - Wel
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 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
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Page 348 and 349: 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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OnLine LIMS SGS Lakefield Research
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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 Corporation - Wel
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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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