2008 PFS, pg 368

http://www.copperfoxmetals.com/i/pdf/Updated_Amended_Technical_Report_5.20.10.pdf

Table 25.33 Capital Cost Summary Total ($Ms)

Mine Facilities $50.4

Primary Crushing & Coarse Ore Conveying $85.8

Coarse Ore Reclaim $125.9

Grinding & Pebble Crushing $317.5

Bulk Flotation & Regrind $133.0

Copper-Molybdenum Separation $6.0

Copper Concentrate $14.5

Molybdenum Concentrate $4.1

Tailings Handling $35.2

Tailings Pond & Water Reclaim System $17.3

Tailings Impoundment $173.3

Reagents $14.6

Plant Services $33.8

Buildings & Ancillary Facilities $39.9

Site Development $264.2

Contracted Directs $1,315.5

Common Distributables $399.1

EPCM [Engineering, Procurement, and Construction Management] $211.0

Contracted Indirects $610.1

Owner’s Cost [?] $459.8

Subtotal $2,385.3

PST Taxes $28.6

Contingency $536.5

Total $2,950.4

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The $1/2 Billion "contingency" may be one target to reduce Capex. Perhaps there is a way to quantify the risk and narrow this a bit. I don't see anything that would be immune to inflation.