Boseto Copper Project BFS Economics Update - Discovery Metals ...

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Pumps, lights, etc,$0.6Technical &Insurance, $0.2Management , $2.8Maintenance Labour,$3.0ExplosiveContractor, $4.0Operator Labour,$4.0Maintenance parts,$7.6Oil, $0.6Fuel, $9.5Operating Costs exclude lease finance US$0.30/tSeptember 200928
Oxide material (which is less than 5% of plant feed) will be stockpiled.Lower grade material (between 0.3% Cu and 0.6% Cu) will be stockpiled.Conventional comminution & flotation design.Single primary jaw crusher, SAG mill with pebble crusher, ball mill.24 hour operation including from ROM stockpile at night.Sequential sulphide and oxide rougher flotation circuits.Regrind before oxide rougher circuit.Separate sulphide and oxide cleaner circuits and products.Continuous shift operations 3 or 4 panel roster.Plant department is production and maintenance focussed.Technical Services department will supply optimised production plans andmetallurgy.Plant will also control water and power and other site utilities.Wet tailings disposal to site tailings dam adjacent to plant.September 200929
Page 1 and 2: 6 October 2009ASX RELEASEBOSETO COP
Page 3 and 4: September 2009September 20091
Page 5 and 6: Since the publication of the Pre-Fe
Page 7 and 8: ‣ This is the third of four Boset
Page 9 and 10: 2 Million tonnes p.a. concentrator
Page 11 and 12: Capital has not been re-estimated b
Page 13 and 14: Cost - Basis PFS XPFSDateBFS Progre
Page 15 and 16: $1.50Industry Average Estimates$1.0
Page 17 and 18: Cost - US$/lb* 1 PFS XPFSBFS Progre
Page 19 and 20: USD millions200150100US$4.00/lbUS$3
Page 21 and 22: Opportunities PossibleExpand Boseto
Page 23 and 24: New power line from MaunPL 98/2005P
Page 25 and 26: Capital costs have not been updated
Page 27 and 28: GM OperationsDepartments Site Gabor
Page 29: Fleet Machine Number Annual HoursWA
Page 33 and 34: Recruitment,$0.10Support labour,$0.
Page 35 and 36: Contingency,$0.5Support labour,$0.4
Page 37 and 38: NamibiaBotswanaBoseto SiteGobabisWa
Page 39 and 40: Contingency,$0.5ConcentrateFreight,
Page 41 and 42: US$/lb3.50300 3.002.502.001.502011

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