I played with a few numbers:
The following is just mumble jumble but was done for just the speculation side of Nuinsco!
Would be nice kinda sorta!
Try to follow my numbers:
Ore Reserves
Lac Rocher Nickel Deposit 33,600,000 Tonnes
Assumptions made for Area of Influence
Strike 400 Meters Life of Mine 12.0 Yrs
Width 200 Meters
Depth 150 Meters
S.G. 2.8
Mine Size/Production
Strip Ratio 1.0 : 1.80
Operating Days/Year 350 250 days/year mine; 350 days per year mill
Per Day Per Year
Ore Tonnes/Day 11,200 2,800,000
Waste Tonnes/Day 20,200 5,050,000
Total Tonnes/Day 31,400 7,850,000
Personnel Requirements
Mine 140
Mill 100
Service 70
Admin./Technical 40
Total Personnel 350
Power Requirements
Peak Load in kW 21,000
Power Consumption (kWh/day) 376,400
Mine Site
Ultimate Pit Limits (acres) 190
Infrastructure (acres) 5
Total Acres Cleared 195
Ore Removal
Drilled Tonnes/Day (2 drills - 7.875") 46,028 31,400
Shovel Size (cubic yards) 10
Number of Shovels Required 4
Truck Size 120
Number of Trucks Required 10
Open Pit Repair Shop (sq. feet) 22,700
Capital Costs
Clearing of Open Pit Area $180,000
Pit Soil Stripping $608,000
Waste Stripping
Drilling Equipment $1,650,000
Loading Equipment $12,880,000
Haulage Equipment $15,170,000
Pit Maintenance Facilities $3,980,000
Communications/electrical Distribution $990,000
Clearing for Concentrator/Crushing Plant/Service Facilities $10,000
Clearing for access roads (5 Kilometers) $870,000
Infrastructure Soil Stripping $40,000
Infrastructure Excavation (cubic meters) 6,700
Mass Excavation for Infrastructure $1,340,000
Detailed Infrastructure Excavation (cubic meters) 670
Infrastructure Excavation (cubic meters) 3,350
Excavation and fill Compaction $70,000
Concrete Foundations $3,175,000
Concentrator Building $7,260,000
Gyratory Crusher $278,000
Primary Crushing Plant $10,250,000
Fine Ore Crushing Plant $12,300,000
Grinding Mills & Fine Storage Bins $12,774,000
Process Capital Costs (Purchase & Installation) $8,093,000
Initial Tailing Storage $2,646,000
Water Supply System $3,765,000
Surface Distribution System $3,300,000
Diesel Electrical Plant $17,216,000
Plant Office Area 4,300
Construction of Plant Office $288,800
Surface Plant Maintenance Shop $255,000
Changehouse $303,000
Warehouse $240,000
Miscellaneous Surface Facilities $1,059,000
Contingency @ 10% $12,099,080
Total $133,089,880
Mine Project Overhead Costs
Engineering $7,262,000
General Site $6,355,000
Project Supervision $5,684,000
Administration $4,736,000
Contingency @ 10% $2,403,700
Total $24,037,000
Total Capital & Project Overhead Costs $157,126,880
Open Pit Operating Costs Per Day Per Year Per Tonne Ore
Drilling $3,000 $750,000 $0.27
Blasting $5,000 $1,250,000 $0.45
Loading $4,000 $1,000,000 $0.36
Haulage $26,000 $6,500,000 $2.32
General Services $10,000 $2,500,000 $0.89
Total $48,000 $12,000,000 $4.29
Concentrator & Services Operating Costs
Crushing $2,200 $770,000 $0.28
Fine Crushing $3,400 $1,190,000 $0.43
Grinding $8,600 $3,010,000 $1.08
Processing $26,000 $9,100,000 $3.25
Tailings $1,600 $560,000 $0.20
Assaying $2,300 $805,000 $0.29
Supervision, maintenance, & general other $11,000 $3,850,000 $1.38
Electrical Power $26,900 $9,415,000 $3.36
Surface Services $11,000 $3,850,000 $1.38
Administration & Technical Staff $9,000 $3,150,000 $1.13
Total $102,000 $35,700,000 $12.75
Total Operating Costs $150,000 $47,700,000
Operating Costs per Tonne Ore $17.04
Gross Metal Value/Tonne Value/Tonne
Nickel Grade 1.59% $68.70
Copper Grade 0.57% $9.42
Ni. Equiv. Grade 1.81% $78.12
Profit/tonne ore $61.09
Profit as Per Assumed Deposit Size: $2,052,490,182
Total Cap Ex. $157,126,880
NPV @10% $916,629,773
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