WR1 4.03% 59.5¢ winsome resources limited

A first attempt to calculate additional opex for hauling ore...

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    A first attempt to calculate additional opex for hauling ore from Adina to Renard = 6.25 USD per tonne of SC5.5 produced

    That seems too low to me, what am I doing wrong?

    Logistics:


    • 80km road @ 50km/hr speed = 1.6hrs between sites
    • renard to adina + load 30min + adina to renard + unload 30min = 4.2hrs per round trip
    • 2 x 9hr shifts = 4 loads per truck per day
    • 4 loads x 12 trucks x 150 tonne capacity = 7200 tonnes / day max
    • 2.2mtpa ore to move per year
    • say 310 working days / year = 7097 tonnes / day

    Costs:

    • 2 shifts x 12 trucks = 24 drivers
    • @ 65k /yr CAD salary = 1.56m CAD /yr driver opex
    • based on Caterpillar 793F, unloaded trip = 28 L diesel, loaded trip = 36 L diesel, @ 1.75 CAD / L = 112 CAD fuel per load = 1.66m /yr CAD fuel opex
    • 12 Caterpillar 793Fs @ say 3.5m USD ea = 42m USD truck capex

    Opex per tonne SC (phase 1):

    • 2.2mtpa @ 1.3% grade and 73% recovery = 380ktpa SC5.5 produced
    • 1.56m + 1.66m = 3.23m CAD driver + fuel opex
    • 3.23m / 380k = 8.5 CAD / 6.25 USD additional opex per tonne SC5.5

    https://hotcopper.com.au/data/attachments/6213/6213932-be1ec58b1854c1128829a38ab8a737e8.jpg
 
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